1 |
commit: 86c7214cb6309544bbd293287019dfdcd331f87e |
2 |
Author: Mike Pagano <mpagano <AT> gentoo <DOT> org> |
3 |
AuthorDate: Wed Apr 3 10:57:54 2019 +0000 |
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Commit: Mike Pagano <mpagano <AT> gentoo <DOT> org> |
5 |
CommitDate: Wed Apr 3 10:57:54 2019 +0000 |
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URL: https://gitweb.gentoo.org/proj/linux-patches.git/commit/?id=86c7214c |
7 |
|
8 |
Linux patch 4.14.110 |
9 |
|
10 |
Signed-off-by: Mike Pagano <mpagano <AT> gentoo.org> |
11 |
|
12 |
0000_README | 4 + |
13 |
1109_linux-4.14.110.patch | 3409 +++++++++++++++++++++++++++++++++++++++++++++ |
14 |
2 files changed, 3413 insertions(+) |
15 |
|
16 |
diff --git a/0000_README b/0000_README |
17 |
index 4a5cbb0..a696c1c 100644 |
18 |
--- a/0000_README |
19 |
+++ b/0000_README |
20 |
@@ -479,6 +479,10 @@ Patch: 1108_4.14.109.patch |
21 |
From: http://www.kernel.org |
22 |
Desc: Linux 4.14.109 |
23 |
|
24 |
+Patch: 1109_4.14.110.patch |
25 |
+From: http://www.kernel.org |
26 |
+Desc: Linux 4.14.110 |
27 |
+ |
28 |
Patch: 1500_XATTR_USER_PREFIX.patch |
29 |
From: https://bugs.gentoo.org/show_bug.cgi?id=470644 |
30 |
Desc: Support for namespace user.pax.* on tmpfs. |
31 |
|
32 |
diff --git a/1109_linux-4.14.110.patch b/1109_linux-4.14.110.patch |
33 |
new file mode 100644 |
34 |
index 0000000..34378ef |
35 |
--- /dev/null |
36 |
+++ b/1109_linux-4.14.110.patch |
37 |
@@ -0,0 +1,3409 @@ |
38 |
+diff --git a/Documentation/virtual/kvm/api.txt b/Documentation/virtual/kvm/api.txt |
39 |
+index 5d12166bd66b..f67ed33d1054 100644 |
40 |
+--- a/Documentation/virtual/kvm/api.txt |
41 |
++++ b/Documentation/virtual/kvm/api.txt |
42 |
+@@ -13,7 +13,7 @@ of a virtual machine. The ioctls belong to three classes |
43 |
+ |
44 |
+ - VM ioctls: These query and set attributes that affect an entire virtual |
45 |
+ machine, for example memory layout. In addition a VM ioctl is used to |
46 |
+- create virtual cpus (vcpus). |
47 |
++ create virtual cpus (vcpus) and devices. |
48 |
+ |
49 |
+ Only run VM ioctls from the same process (address space) that was used |
50 |
+ to create the VM. |
51 |
+@@ -24,6 +24,11 @@ of a virtual machine. The ioctls belong to three classes |
52 |
+ Only run vcpu ioctls from the same thread that was used to create the |
53 |
+ vcpu. |
54 |
+ |
55 |
++ - device ioctls: These query and set attributes that control the operation |
56 |
++ of a single device. |
57 |
++ |
58 |
++ device ioctls must be issued from the same process (address space) that |
59 |
++ was used to create the VM. |
60 |
+ |
61 |
+ 2. File descriptors |
62 |
+ ------------------- |
63 |
+@@ -32,10 +37,11 @@ The kvm API is centered around file descriptors. An initial |
64 |
+ open("/dev/kvm") obtains a handle to the kvm subsystem; this handle |
65 |
+ can be used to issue system ioctls. A KVM_CREATE_VM ioctl on this |
66 |
+ handle will create a VM file descriptor which can be used to issue VM |
67 |
+-ioctls. A KVM_CREATE_VCPU ioctl on a VM fd will create a virtual cpu |
68 |
+-and return a file descriptor pointing to it. Finally, ioctls on a vcpu |
69 |
+-fd can be used to control the vcpu, including the important task of |
70 |
+-actually running guest code. |
71 |
++ioctls. A KVM_CREATE_VCPU or KVM_CREATE_DEVICE ioctl on a VM fd will |
72 |
++create a virtual cpu or device and return a file descriptor pointing to |
73 |
++the new resource. Finally, ioctls on a vcpu or device fd can be used |
74 |
++to control the vcpu or device. For vcpus, this includes the important |
75 |
++task of actually running guest code. |
76 |
+ |
77 |
+ In general file descriptors can be migrated among processes by means |
78 |
+ of fork() and the SCM_RIGHTS facility of unix domain socket. These |
79 |
+diff --git a/Makefile b/Makefile |
80 |
+index e02bced59a57..37bd0b40876d 100644 |
81 |
+--- a/Makefile |
82 |
++++ b/Makefile |
83 |
+@@ -1,7 +1,7 @@ |
84 |
+ # SPDX-License-Identifier: GPL-2.0 |
85 |
+ VERSION = 4 |
86 |
+ PATCHLEVEL = 14 |
87 |
+-SUBLEVEL = 109 |
88 |
++SUBLEVEL = 110 |
89 |
+ EXTRAVERSION = |
90 |
+ NAME = Petit Gorille |
91 |
+ |
92 |
+diff --git a/arch/arm/mach-imx/cpuidle-imx6q.c b/arch/arm/mach-imx/cpuidle-imx6q.c |
93 |
+index bfeb25aaf9a2..326e870d7123 100644 |
94 |
+--- a/arch/arm/mach-imx/cpuidle-imx6q.c |
95 |
++++ b/arch/arm/mach-imx/cpuidle-imx6q.c |
96 |
+@@ -16,30 +16,23 @@ |
97 |
+ #include "cpuidle.h" |
98 |
+ #include "hardware.h" |
99 |
+ |
100 |
+-static atomic_t master = ATOMIC_INIT(0); |
101 |
+-static DEFINE_SPINLOCK(master_lock); |
102 |
++static int num_idle_cpus = 0; |
103 |
++static DEFINE_SPINLOCK(cpuidle_lock); |
104 |
+ |
105 |
+ static int imx6q_enter_wait(struct cpuidle_device *dev, |
106 |
+ struct cpuidle_driver *drv, int index) |
107 |
+ { |
108 |
+- if (atomic_inc_return(&master) == num_online_cpus()) { |
109 |
+- /* |
110 |
+- * With this lock, we prevent other cpu to exit and enter |
111 |
+- * this function again and become the master. |
112 |
+- */ |
113 |
+- if (!spin_trylock(&master_lock)) |
114 |
+- goto idle; |
115 |
++ spin_lock(&cpuidle_lock); |
116 |
++ if (++num_idle_cpus == num_online_cpus()) |
117 |
+ imx6_set_lpm(WAIT_UNCLOCKED); |
118 |
+- cpu_do_idle(); |
119 |
+- imx6_set_lpm(WAIT_CLOCKED); |
120 |
+- spin_unlock(&master_lock); |
121 |
+- goto done; |
122 |
+- } |
123 |
++ spin_unlock(&cpuidle_lock); |
124 |
+ |
125 |
+-idle: |
126 |
+ cpu_do_idle(); |
127 |
+-done: |
128 |
+- atomic_dec(&master); |
129 |
++ |
130 |
++ spin_lock(&cpuidle_lock); |
131 |
++ if (num_idle_cpus-- == num_online_cpus()) |
132 |
++ imx6_set_lpm(WAIT_CLOCKED); |
133 |
++ spin_unlock(&cpuidle_lock); |
134 |
+ |
135 |
+ return index; |
136 |
+ } |
137 |
+diff --git a/arch/powerpc/Kconfig b/arch/powerpc/Kconfig |
138 |
+index fe418226df7f..de3b07c7be30 100644 |
139 |
+--- a/arch/powerpc/Kconfig |
140 |
++++ b/arch/powerpc/Kconfig |
141 |
+@@ -164,7 +164,7 @@ config PPC |
142 |
+ select GENERIC_CLOCKEVENTS_BROADCAST if SMP |
143 |
+ select GENERIC_CMOS_UPDATE |
144 |
+ select GENERIC_CPU_AUTOPROBE |
145 |
+- select GENERIC_CPU_VULNERABILITIES if PPC_BOOK3S_64 |
146 |
++ select GENERIC_CPU_VULNERABILITIES if PPC_BARRIER_NOSPEC |
147 |
+ select GENERIC_IRQ_SHOW |
148 |
+ select GENERIC_IRQ_SHOW_LEVEL |
149 |
+ select GENERIC_SMP_IDLE_THREAD |
150 |
+@@ -236,6 +236,11 @@ config PPC |
151 |
+ # Please keep this list sorted alphabetically. |
152 |
+ # |
153 |
+ |
154 |
++config PPC_BARRIER_NOSPEC |
155 |
++ bool |
156 |
++ default y |
157 |
++ depends on PPC_BOOK3S_64 || PPC_FSL_BOOK3E |
158 |
++ |
159 |
+ config GENERIC_CSUM |
160 |
+ def_bool n |
161 |
+ |
162 |
+diff --git a/arch/powerpc/include/asm/asm-prototypes.h b/arch/powerpc/include/asm/asm-prototypes.h |
163 |
+index 7330150bfe34..ba4c75062d49 100644 |
164 |
+--- a/arch/powerpc/include/asm/asm-prototypes.h |
165 |
++++ b/arch/powerpc/include/asm/asm-prototypes.h |
166 |
+@@ -126,4 +126,10 @@ extern int __ucmpdi2(u64, u64); |
167 |
+ void _mcount(void); |
168 |
+ unsigned long prepare_ftrace_return(unsigned long parent, unsigned long ip); |
169 |
+ |
170 |
++/* Patch sites */ |
171 |
++extern s32 patch__call_flush_count_cache; |
172 |
++extern s32 patch__flush_count_cache_return; |
173 |
++ |
174 |
++extern long flush_count_cache; |
175 |
++ |
176 |
+ #endif /* _ASM_POWERPC_ASM_PROTOTYPES_H */ |
177 |
+diff --git a/arch/powerpc/include/asm/barrier.h b/arch/powerpc/include/asm/barrier.h |
178 |
+index e582d2c88092..449474f667c4 100644 |
179 |
+--- a/arch/powerpc/include/asm/barrier.h |
180 |
++++ b/arch/powerpc/include/asm/barrier.h |
181 |
+@@ -77,19 +77,25 @@ do { \ |
182 |
+ }) |
183 |
+ |
184 |
+ #ifdef CONFIG_PPC_BOOK3S_64 |
185 |
++#define NOSPEC_BARRIER_SLOT nop |
186 |
++#elif defined(CONFIG_PPC_FSL_BOOK3E) |
187 |
++#define NOSPEC_BARRIER_SLOT nop; nop |
188 |
++#endif |
189 |
++ |
190 |
++#ifdef CONFIG_PPC_BARRIER_NOSPEC |
191 |
+ /* |
192 |
+ * Prevent execution of subsequent instructions until preceding branches have |
193 |
+ * been fully resolved and are no longer executing speculatively. |
194 |
+ */ |
195 |
+-#define barrier_nospec_asm ori 31,31,0 |
196 |
++#define barrier_nospec_asm NOSPEC_BARRIER_FIXUP_SECTION; NOSPEC_BARRIER_SLOT |
197 |
+ |
198 |
+ // This also acts as a compiler barrier due to the memory clobber. |
199 |
+ #define barrier_nospec() asm (stringify_in_c(barrier_nospec_asm) ::: "memory") |
200 |
+ |
201 |
+-#else /* !CONFIG_PPC_BOOK3S_64 */ |
202 |
++#else /* !CONFIG_PPC_BARRIER_NOSPEC */ |
203 |
+ #define barrier_nospec_asm |
204 |
+ #define barrier_nospec() |
205 |
+-#endif |
206 |
++#endif /* CONFIG_PPC_BARRIER_NOSPEC */ |
207 |
+ |
208 |
+ #include <asm-generic/barrier.h> |
209 |
+ |
210 |
+diff --git a/arch/powerpc/include/asm/code-patching-asm.h b/arch/powerpc/include/asm/code-patching-asm.h |
211 |
+new file mode 100644 |
212 |
+index 000000000000..ed7b1448493a |
213 |
+--- /dev/null |
214 |
++++ b/arch/powerpc/include/asm/code-patching-asm.h |
215 |
+@@ -0,0 +1,18 @@ |
216 |
++/* SPDX-License-Identifier: GPL-2.0+ */ |
217 |
++/* |
218 |
++ * Copyright 2018, Michael Ellerman, IBM Corporation. |
219 |
++ */ |
220 |
++#ifndef _ASM_POWERPC_CODE_PATCHING_ASM_H |
221 |
++#define _ASM_POWERPC_CODE_PATCHING_ASM_H |
222 |
++ |
223 |
++/* Define a "site" that can be patched */ |
224 |
++.macro patch_site label name |
225 |
++ .pushsection ".rodata" |
226 |
++ .balign 4 |
227 |
++ .global \name |
228 |
++\name: |
229 |
++ .4byte \label - . |
230 |
++ .popsection |
231 |
++.endm |
232 |
++ |
233 |
++#endif /* _ASM_POWERPC_CODE_PATCHING_ASM_H */ |
234 |
+diff --git a/arch/powerpc/include/asm/code-patching.h b/arch/powerpc/include/asm/code-patching.h |
235 |
+index 812535f40124..b2051234ada8 100644 |
236 |
+--- a/arch/powerpc/include/asm/code-patching.h |
237 |
++++ b/arch/powerpc/include/asm/code-patching.h |
238 |
+@@ -32,6 +32,8 @@ unsigned int create_cond_branch(const unsigned int *addr, |
239 |
+ int patch_branch(unsigned int *addr, unsigned long target, int flags); |
240 |
+ int patch_instruction(unsigned int *addr, unsigned int instr); |
241 |
+ int raw_patch_instruction(unsigned int *addr, unsigned int instr); |
242 |
++int patch_instruction_site(s32 *addr, unsigned int instr); |
243 |
++int patch_branch_site(s32 *site, unsigned long target, int flags); |
244 |
+ |
245 |
+ int instr_is_relative_branch(unsigned int instr); |
246 |
+ int instr_is_relative_link_branch(unsigned int instr); |
247 |
+diff --git a/arch/powerpc/include/asm/feature-fixups.h b/arch/powerpc/include/asm/feature-fixups.h |
248 |
+index a9b64df34e2a..b1d478acbaec 100644 |
249 |
+--- a/arch/powerpc/include/asm/feature-fixups.h |
250 |
++++ b/arch/powerpc/include/asm/feature-fixups.h |
251 |
+@@ -211,6 +211,25 @@ label##3: \ |
252 |
+ FTR_ENTRY_OFFSET 951b-952b; \ |
253 |
+ .popsection; |
254 |
+ |
255 |
++#define NOSPEC_BARRIER_FIXUP_SECTION \ |
256 |
++953: \ |
257 |
++ .pushsection __barrier_nospec_fixup,"a"; \ |
258 |
++ .align 2; \ |
259 |
++954: \ |
260 |
++ FTR_ENTRY_OFFSET 953b-954b; \ |
261 |
++ .popsection; |
262 |
++ |
263 |
++#define START_BTB_FLUSH_SECTION \ |
264 |
++955: \ |
265 |
++ |
266 |
++#define END_BTB_FLUSH_SECTION \ |
267 |
++956: \ |
268 |
++ .pushsection __btb_flush_fixup,"a"; \ |
269 |
++ .align 2; \ |
270 |
++957: \ |
271 |
++ FTR_ENTRY_OFFSET 955b-957b; \ |
272 |
++ FTR_ENTRY_OFFSET 956b-957b; \ |
273 |
++ .popsection; |
274 |
+ |
275 |
+ #ifndef __ASSEMBLY__ |
276 |
+ #include <linux/types.h> |
277 |
+@@ -219,6 +238,8 @@ extern long stf_barrier_fallback; |
278 |
+ extern long __start___stf_entry_barrier_fixup, __stop___stf_entry_barrier_fixup; |
279 |
+ extern long __start___stf_exit_barrier_fixup, __stop___stf_exit_barrier_fixup; |
280 |
+ extern long __start___rfi_flush_fixup, __stop___rfi_flush_fixup; |
281 |
++extern long __start___barrier_nospec_fixup, __stop___barrier_nospec_fixup; |
282 |
++extern long __start__btb_flush_fixup, __stop__btb_flush_fixup; |
283 |
+ |
284 |
+ void apply_feature_fixups(void); |
285 |
+ void setup_feature_keys(void); |
286 |
+diff --git a/arch/powerpc/include/asm/hvcall.h b/arch/powerpc/include/asm/hvcall.h |
287 |
+index 5a740feb7bd7..15cef59092c7 100644 |
288 |
+--- a/arch/powerpc/include/asm/hvcall.h |
289 |
++++ b/arch/powerpc/include/asm/hvcall.h |
290 |
+@@ -340,10 +340,12 @@ |
291 |
+ #define H_CPU_CHAR_BRANCH_HINTS_HONORED (1ull << 58) // IBM bit 5 |
292 |
+ #define H_CPU_CHAR_THREAD_RECONFIG_CTRL (1ull << 57) // IBM bit 6 |
293 |
+ #define H_CPU_CHAR_COUNT_CACHE_DISABLED (1ull << 56) // IBM bit 7 |
294 |
++#define H_CPU_CHAR_BCCTR_FLUSH_ASSIST (1ull << 54) // IBM bit 9 |
295 |
+ |
296 |
+ #define H_CPU_BEHAV_FAVOUR_SECURITY (1ull << 63) // IBM bit 0 |
297 |
+ #define H_CPU_BEHAV_L1D_FLUSH_PR (1ull << 62) // IBM bit 1 |
298 |
+ #define H_CPU_BEHAV_BNDS_CHK_SPEC_BAR (1ull << 61) // IBM bit 2 |
299 |
++#define H_CPU_BEHAV_FLUSH_COUNT_CACHE (1ull << 58) // IBM bit 5 |
300 |
+ |
301 |
+ /* Flag values used in H_REGISTER_PROC_TBL hcall */ |
302 |
+ #define PROC_TABLE_OP_MASK 0x18 |
303 |
+diff --git a/arch/powerpc/include/asm/ppc-opcode.h b/arch/powerpc/include/asm/ppc-opcode.h |
304 |
+index ce0930d68857..b991bd31b383 100644 |
305 |
+--- a/arch/powerpc/include/asm/ppc-opcode.h |
306 |
++++ b/arch/powerpc/include/asm/ppc-opcode.h |
307 |
+@@ -288,6 +288,7 @@ |
308 |
+ /* Misc instructions for BPF compiler */ |
309 |
+ #define PPC_INST_LBZ 0x88000000 |
310 |
+ #define PPC_INST_LD 0xe8000000 |
311 |
++#define PPC_INST_LDX 0x7c00002a |
312 |
+ #define PPC_INST_LHZ 0xa0000000 |
313 |
+ #define PPC_INST_LWZ 0x80000000 |
314 |
+ #define PPC_INST_LHBRX 0x7c00062c |
315 |
+@@ -295,6 +296,7 @@ |
316 |
+ #define PPC_INST_STB 0x98000000 |
317 |
+ #define PPC_INST_STH 0xb0000000 |
318 |
+ #define PPC_INST_STD 0xf8000000 |
319 |
++#define PPC_INST_STDX 0x7c00012a |
320 |
+ #define PPC_INST_STDU 0xf8000001 |
321 |
+ #define PPC_INST_STW 0x90000000 |
322 |
+ #define PPC_INST_STWU 0x94000000 |
323 |
+diff --git a/arch/powerpc/include/asm/ppc_asm.h b/arch/powerpc/include/asm/ppc_asm.h |
324 |
+index 36f3e41c9fbe..3e1b8de72776 100644 |
325 |
+--- a/arch/powerpc/include/asm/ppc_asm.h |
326 |
++++ b/arch/powerpc/include/asm/ppc_asm.h |
327 |
+@@ -802,4 +802,14 @@ END_FTR_SECTION_IFCLR(CPU_FTR_601) |
328 |
+ stringify_in_c(.long (_target) - . ;) \ |
329 |
+ stringify_in_c(.previous) |
330 |
+ |
331 |
++#ifdef CONFIG_PPC_FSL_BOOK3E |
332 |
++#define BTB_FLUSH(reg) \ |
333 |
++ lis reg,BUCSR_INIT@h; \ |
334 |
++ ori reg,reg,BUCSR_INIT@l; \ |
335 |
++ mtspr SPRN_BUCSR,reg; \ |
336 |
++ isync; |
337 |
++#else |
338 |
++#define BTB_FLUSH(reg) |
339 |
++#endif /* CONFIG_PPC_FSL_BOOK3E */ |
340 |
++ |
341 |
+ #endif /* _ASM_POWERPC_PPC_ASM_H */ |
342 |
+diff --git a/arch/powerpc/include/asm/security_features.h b/arch/powerpc/include/asm/security_features.h |
343 |
+index 44989b22383c..759597bf0fd8 100644 |
344 |
+--- a/arch/powerpc/include/asm/security_features.h |
345 |
++++ b/arch/powerpc/include/asm/security_features.h |
346 |
+@@ -22,6 +22,7 @@ enum stf_barrier_type { |
347 |
+ |
348 |
+ void setup_stf_barrier(void); |
349 |
+ void do_stf_barrier_fixups(enum stf_barrier_type types); |
350 |
++void setup_count_cache_flush(void); |
351 |
+ |
352 |
+ static inline void security_ftr_set(unsigned long feature) |
353 |
+ { |
354 |
+@@ -59,6 +60,9 @@ static inline bool security_ftr_enabled(unsigned long feature) |
355 |
+ // Indirect branch prediction cache disabled |
356 |
+ #define SEC_FTR_COUNT_CACHE_DISABLED 0x0000000000000020ull |
357 |
+ |
358 |
++// bcctr 2,0,0 triggers a hardware assisted count cache flush |
359 |
++#define SEC_FTR_BCCTR_FLUSH_ASSIST 0x0000000000000800ull |
360 |
++ |
361 |
+ |
362 |
+ // Features indicating need for Spectre/Meltdown mitigations |
363 |
+ |
364 |
+@@ -74,6 +78,9 @@ static inline bool security_ftr_enabled(unsigned long feature) |
365 |
+ // Firmware configuration indicates user favours security over performance |
366 |
+ #define SEC_FTR_FAVOUR_SECURITY 0x0000000000000200ull |
367 |
+ |
368 |
++// Software required to flush count cache on context switch |
369 |
++#define SEC_FTR_FLUSH_COUNT_CACHE 0x0000000000000400ull |
370 |
++ |
371 |
+ |
372 |
+ // Features enabled by default |
373 |
+ #define SEC_FTR_DEFAULT \ |
374 |
+diff --git a/arch/powerpc/include/asm/setup.h b/arch/powerpc/include/asm/setup.h |
375 |
+index a5e919e34c42..5ceab440ecb9 100644 |
376 |
+--- a/arch/powerpc/include/asm/setup.h |
377 |
++++ b/arch/powerpc/include/asm/setup.h |
378 |
+@@ -52,6 +52,26 @@ enum l1d_flush_type { |
379 |
+ |
380 |
+ void setup_rfi_flush(enum l1d_flush_type, bool enable); |
381 |
+ void do_rfi_flush_fixups(enum l1d_flush_type types); |
382 |
++#ifdef CONFIG_PPC_BARRIER_NOSPEC |
383 |
++void setup_barrier_nospec(void); |
384 |
++#else |
385 |
++static inline void setup_barrier_nospec(void) { }; |
386 |
++#endif |
387 |
++void do_barrier_nospec_fixups(bool enable); |
388 |
++extern bool barrier_nospec_enabled; |
389 |
++ |
390 |
++#ifdef CONFIG_PPC_BARRIER_NOSPEC |
391 |
++void do_barrier_nospec_fixups_range(bool enable, void *start, void *end); |
392 |
++#else |
393 |
++static inline void do_barrier_nospec_fixups_range(bool enable, void *start, void *end) { }; |
394 |
++#endif |
395 |
++ |
396 |
++#ifdef CONFIG_PPC_FSL_BOOK3E |
397 |
++void setup_spectre_v2(void); |
398 |
++#else |
399 |
++static inline void setup_spectre_v2(void) {}; |
400 |
++#endif |
401 |
++void do_btb_flush_fixups(void); |
402 |
+ |
403 |
+ #endif /* !__ASSEMBLY__ */ |
404 |
+ |
405 |
+diff --git a/arch/powerpc/include/asm/uaccess.h b/arch/powerpc/include/asm/uaccess.h |
406 |
+index cf26e62b268d..bd6d0fb5be9f 100644 |
407 |
+--- a/arch/powerpc/include/asm/uaccess.h |
408 |
++++ b/arch/powerpc/include/asm/uaccess.h |
409 |
+@@ -238,6 +238,7 @@ do { \ |
410 |
+ __chk_user_ptr(ptr); \ |
411 |
+ if (!is_kernel_addr((unsigned long)__gu_addr)) \ |
412 |
+ might_fault(); \ |
413 |
++ barrier_nospec(); \ |
414 |
+ __get_user_size(__gu_val, __gu_addr, (size), __gu_err); \ |
415 |
+ (x) = (__typeof__(*(ptr)))__gu_val; \ |
416 |
+ __gu_err; \ |
417 |
+@@ -249,8 +250,10 @@ do { \ |
418 |
+ __long_type(*(ptr)) __gu_val = 0; \ |
419 |
+ const __typeof__(*(ptr)) __user *__gu_addr = (ptr); \ |
420 |
+ might_fault(); \ |
421 |
+- if (access_ok(VERIFY_READ, __gu_addr, (size))) \ |
422 |
++ if (access_ok(VERIFY_READ, __gu_addr, (size))) { \ |
423 |
++ barrier_nospec(); \ |
424 |
+ __get_user_size(__gu_val, __gu_addr, (size), __gu_err); \ |
425 |
++ } \ |
426 |
+ (x) = (__force __typeof__(*(ptr)))__gu_val; \ |
427 |
+ __gu_err; \ |
428 |
+ }) |
429 |
+@@ -261,6 +264,7 @@ do { \ |
430 |
+ __long_type(*(ptr)) __gu_val; \ |
431 |
+ const __typeof__(*(ptr)) __user *__gu_addr = (ptr); \ |
432 |
+ __chk_user_ptr(ptr); \ |
433 |
++ barrier_nospec(); \ |
434 |
+ __get_user_size(__gu_val, __gu_addr, (size), __gu_err); \ |
435 |
+ (x) = (__force __typeof__(*(ptr)))__gu_val; \ |
436 |
+ __gu_err; \ |
437 |
+@@ -288,15 +292,19 @@ static inline unsigned long raw_copy_from_user(void *to, |
438 |
+ |
439 |
+ switch (n) { |
440 |
+ case 1: |
441 |
++ barrier_nospec(); |
442 |
+ __get_user_size(*(u8 *)to, from, 1, ret); |
443 |
+ break; |
444 |
+ case 2: |
445 |
++ barrier_nospec(); |
446 |
+ __get_user_size(*(u16 *)to, from, 2, ret); |
447 |
+ break; |
448 |
+ case 4: |
449 |
++ barrier_nospec(); |
450 |
+ __get_user_size(*(u32 *)to, from, 4, ret); |
451 |
+ break; |
452 |
+ case 8: |
453 |
++ barrier_nospec(); |
454 |
+ __get_user_size(*(u64 *)to, from, 8, ret); |
455 |
+ break; |
456 |
+ } |
457 |
+@@ -304,6 +312,7 @@ static inline unsigned long raw_copy_from_user(void *to, |
458 |
+ return 0; |
459 |
+ } |
460 |
+ |
461 |
++ barrier_nospec(); |
462 |
+ return __copy_tofrom_user((__force void __user *)to, from, n); |
463 |
+ } |
464 |
+ |
465 |
+diff --git a/arch/powerpc/kernel/Makefile b/arch/powerpc/kernel/Makefile |
466 |
+index a1089c9a9aa5..142b08d40642 100644 |
467 |
+--- a/arch/powerpc/kernel/Makefile |
468 |
++++ b/arch/powerpc/kernel/Makefile |
469 |
+@@ -45,9 +45,10 @@ obj-$(CONFIG_VDSO32) += vdso32/ |
470 |
+ obj-$(CONFIG_PPC_WATCHDOG) += watchdog.o |
471 |
+ obj-$(CONFIG_HAVE_HW_BREAKPOINT) += hw_breakpoint.o |
472 |
+ obj-$(CONFIG_PPC_BOOK3S_64) += cpu_setup_ppc970.o cpu_setup_pa6t.o |
473 |
+-obj-$(CONFIG_PPC_BOOK3S_64) += cpu_setup_power.o security.o |
474 |
++obj-$(CONFIG_PPC_BOOK3S_64) += cpu_setup_power.o |
475 |
+ obj-$(CONFIG_PPC_BOOK3S_64) += mce.o mce_power.o |
476 |
+ obj-$(CONFIG_PPC_BOOK3E_64) += exceptions-64e.o idle_book3e.o |
477 |
++obj-$(CONFIG_PPC_BARRIER_NOSPEC) += security.o |
478 |
+ obj-$(CONFIG_PPC64) += vdso64/ |
479 |
+ obj-$(CONFIG_ALTIVEC) += vecemu.o |
480 |
+ obj-$(CONFIG_PPC_970_NAP) += idle_power4.o |
481 |
+diff --git a/arch/powerpc/kernel/entry_32.S b/arch/powerpc/kernel/entry_32.S |
482 |
+index 4ae464b9d490..a2999cd73a82 100644 |
483 |
+--- a/arch/powerpc/kernel/entry_32.S |
484 |
++++ b/arch/powerpc/kernel/entry_32.S |
485 |
+@@ -33,6 +33,7 @@ |
486 |
+ #include <asm/unistd.h> |
487 |
+ #include <asm/ptrace.h> |
488 |
+ #include <asm/export.h> |
489 |
++#include <asm/barrier.h> |
490 |
+ |
491 |
+ /* |
492 |
+ * MSR_KERNEL is > 0x10000 on 4xx/Book-E since it include MSR_CE. |
493 |
+@@ -358,6 +359,15 @@ syscall_dotrace_cont: |
494 |
+ ori r10,r10,sys_call_table@l |
495 |
+ slwi r0,r0,2 |
496 |
+ bge- 66f |
497 |
++ |
498 |
++ barrier_nospec_asm |
499 |
++ /* |
500 |
++ * Prevent the load of the handler below (based on the user-passed |
501 |
++ * system call number) being speculatively executed until the test |
502 |
++ * against NR_syscalls and branch to .66f above has |
503 |
++ * committed. |
504 |
++ */ |
505 |
++ |
506 |
+ lwzx r10,r10,r0 /* Fetch system call handler [ptr] */ |
507 |
+ mtlr r10 |
508 |
+ addi r9,r1,STACK_FRAME_OVERHEAD |
509 |
+diff --git a/arch/powerpc/kernel/entry_64.S b/arch/powerpc/kernel/entry_64.S |
510 |
+index c194f4c8e66b..12395895b9aa 100644 |
511 |
+--- a/arch/powerpc/kernel/entry_64.S |
512 |
++++ b/arch/powerpc/kernel/entry_64.S |
513 |
+@@ -25,6 +25,7 @@ |
514 |
+ #include <asm/page.h> |
515 |
+ #include <asm/mmu.h> |
516 |
+ #include <asm/thread_info.h> |
517 |
++#include <asm/code-patching-asm.h> |
518 |
+ #include <asm/ppc_asm.h> |
519 |
+ #include <asm/asm-offsets.h> |
520 |
+ #include <asm/cputable.h> |
521 |
+@@ -36,6 +37,7 @@ |
522 |
+ #include <asm/context_tracking.h> |
523 |
+ #include <asm/tm.h> |
524 |
+ #include <asm/ppc-opcode.h> |
525 |
++#include <asm/barrier.h> |
526 |
+ #include <asm/export.h> |
527 |
+ #ifdef CONFIG_PPC_BOOK3S |
528 |
+ #include <asm/exception-64s.h> |
529 |
+@@ -76,6 +78,11 @@ END_FTR_SECTION_IFSET(CPU_FTR_TM) |
530 |
+ std r0,GPR0(r1) |
531 |
+ std r10,GPR1(r1) |
532 |
+ beq 2f /* if from kernel mode */ |
533 |
++#ifdef CONFIG_PPC_FSL_BOOK3E |
534 |
++START_BTB_FLUSH_SECTION |
535 |
++ BTB_FLUSH(r10) |
536 |
++END_BTB_FLUSH_SECTION |
537 |
++#endif |
538 |
+ ACCOUNT_CPU_USER_ENTRY(r13, r10, r11) |
539 |
+ 2: std r2,GPR2(r1) |
540 |
+ std r3,GPR3(r1) |
541 |
+@@ -179,6 +186,15 @@ system_call: /* label this so stack traces look sane */ |
542 |
+ clrldi r8,r8,32 |
543 |
+ 15: |
544 |
+ slwi r0,r0,4 |
545 |
++ |
546 |
++ barrier_nospec_asm |
547 |
++ /* |
548 |
++ * Prevent the load of the handler below (based on the user-passed |
549 |
++ * system call number) being speculatively executed until the test |
550 |
++ * against NR_syscalls and branch to .Lsyscall_enosys above has |
551 |
++ * committed. |
552 |
++ */ |
553 |
++ |
554 |
+ ldx r12,r11,r0 /* Fetch system call handler [ptr] */ |
555 |
+ mtctr r12 |
556 |
+ bctrl /* Call handler */ |
557 |
+@@ -487,6 +503,57 @@ _GLOBAL(ret_from_kernel_thread) |
558 |
+ li r3,0 |
559 |
+ b .Lsyscall_exit |
560 |
+ |
561 |
++#ifdef CONFIG_PPC_BOOK3S_64 |
562 |
++ |
563 |
++#define FLUSH_COUNT_CACHE \ |
564 |
++1: nop; \ |
565 |
++ patch_site 1b, patch__call_flush_count_cache |
566 |
++ |
567 |
++ |
568 |
++#define BCCTR_FLUSH .long 0x4c400420 |
569 |
++ |
570 |
++.macro nops number |
571 |
++ .rept \number |
572 |
++ nop |
573 |
++ .endr |
574 |
++.endm |
575 |
++ |
576 |
++.balign 32 |
577 |
++.global flush_count_cache |
578 |
++flush_count_cache: |
579 |
++ /* Save LR into r9 */ |
580 |
++ mflr r9 |
581 |
++ |
582 |
++ .rept 64 |
583 |
++ bl .+4 |
584 |
++ .endr |
585 |
++ b 1f |
586 |
++ nops 6 |
587 |
++ |
588 |
++ .balign 32 |
589 |
++ /* Restore LR */ |
590 |
++1: mtlr r9 |
591 |
++ li r9,0x7fff |
592 |
++ mtctr r9 |
593 |
++ |
594 |
++ BCCTR_FLUSH |
595 |
++ |
596 |
++2: nop |
597 |
++ patch_site 2b patch__flush_count_cache_return |
598 |
++ |
599 |
++ nops 3 |
600 |
++ |
601 |
++ .rept 278 |
602 |
++ .balign 32 |
603 |
++ BCCTR_FLUSH |
604 |
++ nops 7 |
605 |
++ .endr |
606 |
++ |
607 |
++ blr |
608 |
++#else |
609 |
++#define FLUSH_COUNT_CACHE |
610 |
++#endif /* CONFIG_PPC_BOOK3S_64 */ |
611 |
++ |
612 |
+ /* |
613 |
+ * This routine switches between two different tasks. The process |
614 |
+ * state of one is saved on its kernel stack. Then the state |
615 |
+@@ -518,6 +585,8 @@ _GLOBAL(_switch) |
616 |
+ std r23,_CCR(r1) |
617 |
+ std r1,KSP(r3) /* Set old stack pointer */ |
618 |
+ |
619 |
++ FLUSH_COUNT_CACHE |
620 |
++ |
621 |
+ /* |
622 |
+ * On SMP kernels, care must be taken because a task may be |
623 |
+ * scheduled off CPUx and on to CPUy. Memory ordering must be |
624 |
+diff --git a/arch/powerpc/kernel/exceptions-64e.S b/arch/powerpc/kernel/exceptions-64e.S |
625 |
+index acd8ca76233e..2edc1b7b34cc 100644 |
626 |
+--- a/arch/powerpc/kernel/exceptions-64e.S |
627 |
++++ b/arch/powerpc/kernel/exceptions-64e.S |
628 |
+@@ -295,7 +295,8 @@ ret_from_mc_except: |
629 |
+ andi. r10,r11,MSR_PR; /* save stack pointer */ \ |
630 |
+ beq 1f; /* branch around if supervisor */ \ |
631 |
+ ld r1,PACAKSAVE(r13); /* get kernel stack coming from usr */\ |
632 |
+-1: cmpdi cr1,r1,0; /* check if SP makes sense */ \ |
633 |
++1: type##_BTB_FLUSH \ |
634 |
++ cmpdi cr1,r1,0; /* check if SP makes sense */ \ |
635 |
+ bge- cr1,exc_##n##_bad_stack;/* bad stack (TODO: out of line) */ \ |
636 |
+ mfspr r10,SPRN_##type##_SRR0; /* read SRR0 before touching stack */ |
637 |
+ |
638 |
+@@ -327,6 +328,30 @@ ret_from_mc_except: |
639 |
+ #define SPRN_MC_SRR0 SPRN_MCSRR0 |
640 |
+ #define SPRN_MC_SRR1 SPRN_MCSRR1 |
641 |
+ |
642 |
++#ifdef CONFIG_PPC_FSL_BOOK3E |
643 |
++#define GEN_BTB_FLUSH \ |
644 |
++ START_BTB_FLUSH_SECTION \ |
645 |
++ beq 1f; \ |
646 |
++ BTB_FLUSH(r10) \ |
647 |
++ 1: \ |
648 |
++ END_BTB_FLUSH_SECTION |
649 |
++ |
650 |
++#define CRIT_BTB_FLUSH \ |
651 |
++ START_BTB_FLUSH_SECTION \ |
652 |
++ BTB_FLUSH(r10) \ |
653 |
++ END_BTB_FLUSH_SECTION |
654 |
++ |
655 |
++#define DBG_BTB_FLUSH CRIT_BTB_FLUSH |
656 |
++#define MC_BTB_FLUSH CRIT_BTB_FLUSH |
657 |
++#define GDBELL_BTB_FLUSH GEN_BTB_FLUSH |
658 |
++#else |
659 |
++#define GEN_BTB_FLUSH |
660 |
++#define CRIT_BTB_FLUSH |
661 |
++#define DBG_BTB_FLUSH |
662 |
++#define MC_BTB_FLUSH |
663 |
++#define GDBELL_BTB_FLUSH |
664 |
++#endif |
665 |
++ |
666 |
+ #define NORMAL_EXCEPTION_PROLOG(n, intnum, addition) \ |
667 |
+ EXCEPTION_PROLOG(n, intnum, GEN, addition##_GEN(n)) |
668 |
+ |
669 |
+diff --git a/arch/powerpc/kernel/head_booke.h b/arch/powerpc/kernel/head_booke.h |
670 |
+index d0862a100d29..306e26c073a0 100644 |
671 |
+--- a/arch/powerpc/kernel/head_booke.h |
672 |
++++ b/arch/powerpc/kernel/head_booke.h |
673 |
+@@ -32,6 +32,16 @@ |
674 |
+ */ |
675 |
+ #define THREAD_NORMSAVE(offset) (THREAD_NORMSAVES + (offset * 4)) |
676 |
+ |
677 |
++#ifdef CONFIG_PPC_FSL_BOOK3E |
678 |
++#define BOOKE_CLEAR_BTB(reg) \ |
679 |
++START_BTB_FLUSH_SECTION \ |
680 |
++ BTB_FLUSH(reg) \ |
681 |
++END_BTB_FLUSH_SECTION |
682 |
++#else |
683 |
++#define BOOKE_CLEAR_BTB(reg) |
684 |
++#endif |
685 |
++ |
686 |
++ |
687 |
+ #define NORMAL_EXCEPTION_PROLOG(intno) \ |
688 |
+ mtspr SPRN_SPRG_WSCRATCH0, r10; /* save one register */ \ |
689 |
+ mfspr r10, SPRN_SPRG_THREAD; \ |
690 |
+@@ -43,6 +53,7 @@ |
691 |
+ andi. r11, r11, MSR_PR; /* check whether user or kernel */\ |
692 |
+ mr r11, r1; \ |
693 |
+ beq 1f; \ |
694 |
++ BOOKE_CLEAR_BTB(r11) \ |
695 |
+ /* if from user, start at top of this thread's kernel stack */ \ |
696 |
+ lwz r11, THREAD_INFO-THREAD(r10); \ |
697 |
+ ALLOC_STACK_FRAME(r11, THREAD_SIZE); \ |
698 |
+@@ -128,6 +139,7 @@ |
699 |
+ stw r9,_CCR(r8); /* save CR on stack */\ |
700 |
+ mfspr r11,exc_level_srr1; /* check whether user or kernel */\ |
701 |
+ DO_KVM BOOKE_INTERRUPT_##intno exc_level_srr1; \ |
702 |
++ BOOKE_CLEAR_BTB(r10) \ |
703 |
+ andi. r11,r11,MSR_PR; \ |
704 |
+ mfspr r11,SPRN_SPRG_THREAD; /* if from user, start at top of */\ |
705 |
+ lwz r11,THREAD_INFO-THREAD(r11); /* this thread's kernel stack */\ |
706 |
+diff --git a/arch/powerpc/kernel/head_fsl_booke.S b/arch/powerpc/kernel/head_fsl_booke.S |
707 |
+index bf4c6021515f..60a0aeefc4a7 100644 |
708 |
+--- a/arch/powerpc/kernel/head_fsl_booke.S |
709 |
++++ b/arch/powerpc/kernel/head_fsl_booke.S |
710 |
+@@ -452,6 +452,13 @@ END_FTR_SECTION_IFSET(CPU_FTR_EMB_HV) |
711 |
+ mfcr r13 |
712 |
+ stw r13, THREAD_NORMSAVE(3)(r10) |
713 |
+ DO_KVM BOOKE_INTERRUPT_DTLB_MISS SPRN_SRR1 |
714 |
++START_BTB_FLUSH_SECTION |
715 |
++ mfspr r11, SPRN_SRR1 |
716 |
++ andi. r10,r11,MSR_PR |
717 |
++ beq 1f |
718 |
++ BTB_FLUSH(r10) |
719 |
++1: |
720 |
++END_BTB_FLUSH_SECTION |
721 |
+ mfspr r10, SPRN_DEAR /* Get faulting address */ |
722 |
+ |
723 |
+ /* If we are faulting a kernel address, we have to use the |
724 |
+@@ -546,6 +553,14 @@ END_FTR_SECTION_IFSET(CPU_FTR_EMB_HV) |
725 |
+ mfcr r13 |
726 |
+ stw r13, THREAD_NORMSAVE(3)(r10) |
727 |
+ DO_KVM BOOKE_INTERRUPT_ITLB_MISS SPRN_SRR1 |
728 |
++START_BTB_FLUSH_SECTION |
729 |
++ mfspr r11, SPRN_SRR1 |
730 |
++ andi. r10,r11,MSR_PR |
731 |
++ beq 1f |
732 |
++ BTB_FLUSH(r10) |
733 |
++1: |
734 |
++END_BTB_FLUSH_SECTION |
735 |
++ |
736 |
+ mfspr r10, SPRN_SRR0 /* Get faulting address */ |
737 |
+ |
738 |
+ /* If we are faulting a kernel address, we have to use the |
739 |
+diff --git a/arch/powerpc/kernel/module.c b/arch/powerpc/kernel/module.c |
740 |
+index 3f7ba0f5bf29..77371c9ef3d8 100644 |
741 |
+--- a/arch/powerpc/kernel/module.c |
742 |
++++ b/arch/powerpc/kernel/module.c |
743 |
+@@ -72,7 +72,15 @@ int module_finalize(const Elf_Ehdr *hdr, |
744 |
+ do_feature_fixups(powerpc_firmware_features, |
745 |
+ (void *)sect->sh_addr, |
746 |
+ (void *)sect->sh_addr + sect->sh_size); |
747 |
+-#endif |
748 |
++#endif /* CONFIG_PPC64 */ |
749 |
++ |
750 |
++#ifdef CONFIG_PPC_BARRIER_NOSPEC |
751 |
++ sect = find_section(hdr, sechdrs, "__spec_barrier_fixup"); |
752 |
++ if (sect != NULL) |
753 |
++ do_barrier_nospec_fixups_range(barrier_nospec_enabled, |
754 |
++ (void *)sect->sh_addr, |
755 |
++ (void *)sect->sh_addr + sect->sh_size); |
756 |
++#endif /* CONFIG_PPC_BARRIER_NOSPEC */ |
757 |
+ |
758 |
+ sect = find_section(hdr, sechdrs, "__lwsync_fixup"); |
759 |
+ if (sect != NULL) |
760 |
+diff --git a/arch/powerpc/kernel/security.c b/arch/powerpc/kernel/security.c |
761 |
+index b98a722da915..48b50fb8dc4b 100644 |
762 |
+--- a/arch/powerpc/kernel/security.c |
763 |
++++ b/arch/powerpc/kernel/security.c |
764 |
+@@ -9,11 +9,120 @@ |
765 |
+ #include <linux/seq_buf.h> |
766 |
+ |
767 |
+ #include <asm/debugfs.h> |
768 |
++#include <asm/asm-prototypes.h> |
769 |
++#include <asm/code-patching.h> |
770 |
+ #include <asm/security_features.h> |
771 |
++#include <asm/setup.h> |
772 |
+ |
773 |
+ |
774 |
+ unsigned long powerpc_security_features __read_mostly = SEC_FTR_DEFAULT; |
775 |
+ |
776 |
++enum count_cache_flush_type { |
777 |
++ COUNT_CACHE_FLUSH_NONE = 0x1, |
778 |
++ COUNT_CACHE_FLUSH_SW = 0x2, |
779 |
++ COUNT_CACHE_FLUSH_HW = 0x4, |
780 |
++}; |
781 |
++static enum count_cache_flush_type count_cache_flush_type = COUNT_CACHE_FLUSH_NONE; |
782 |
++ |
783 |
++bool barrier_nospec_enabled; |
784 |
++static bool no_nospec; |
785 |
++static bool btb_flush_enabled; |
786 |
++#ifdef CONFIG_PPC_FSL_BOOK3E |
787 |
++static bool no_spectrev2; |
788 |
++#endif |
789 |
++ |
790 |
++static void enable_barrier_nospec(bool enable) |
791 |
++{ |
792 |
++ barrier_nospec_enabled = enable; |
793 |
++ do_barrier_nospec_fixups(enable); |
794 |
++} |
795 |
++ |
796 |
++void setup_barrier_nospec(void) |
797 |
++{ |
798 |
++ bool enable; |
799 |
++ |
800 |
++ /* |
801 |
++ * It would make sense to check SEC_FTR_SPEC_BAR_ORI31 below as well. |
802 |
++ * But there's a good reason not to. The two flags we check below are |
803 |
++ * both are enabled by default in the kernel, so if the hcall is not |
804 |
++ * functional they will be enabled. |
805 |
++ * On a system where the host firmware has been updated (so the ori |
806 |
++ * functions as a barrier), but on which the hypervisor (KVM/Qemu) has |
807 |
++ * not been updated, we would like to enable the barrier. Dropping the |
808 |
++ * check for SEC_FTR_SPEC_BAR_ORI31 achieves that. The only downside is |
809 |
++ * we potentially enable the barrier on systems where the host firmware |
810 |
++ * is not updated, but that's harmless as it's a no-op. |
811 |
++ */ |
812 |
++ enable = security_ftr_enabled(SEC_FTR_FAVOUR_SECURITY) && |
813 |
++ security_ftr_enabled(SEC_FTR_BNDS_CHK_SPEC_BAR); |
814 |
++ |
815 |
++ if (!no_nospec) |
816 |
++ enable_barrier_nospec(enable); |
817 |
++} |
818 |
++ |
819 |
++static int __init handle_nospectre_v1(char *p) |
820 |
++{ |
821 |
++ no_nospec = true; |
822 |
++ |
823 |
++ return 0; |
824 |
++} |
825 |
++early_param("nospectre_v1", handle_nospectre_v1); |
826 |
++ |
827 |
++#ifdef CONFIG_DEBUG_FS |
828 |
++static int barrier_nospec_set(void *data, u64 val) |
829 |
++{ |
830 |
++ switch (val) { |
831 |
++ case 0: |
832 |
++ case 1: |
833 |
++ break; |
834 |
++ default: |
835 |
++ return -EINVAL; |
836 |
++ } |
837 |
++ |
838 |
++ if (!!val == !!barrier_nospec_enabled) |
839 |
++ return 0; |
840 |
++ |
841 |
++ enable_barrier_nospec(!!val); |
842 |
++ |
843 |
++ return 0; |
844 |
++} |
845 |
++ |
846 |
++static int barrier_nospec_get(void *data, u64 *val) |
847 |
++{ |
848 |
++ *val = barrier_nospec_enabled ? 1 : 0; |
849 |
++ return 0; |
850 |
++} |
851 |
++ |
852 |
++DEFINE_SIMPLE_ATTRIBUTE(fops_barrier_nospec, |
853 |
++ barrier_nospec_get, barrier_nospec_set, "%llu\n"); |
854 |
++ |
855 |
++static __init int barrier_nospec_debugfs_init(void) |
856 |
++{ |
857 |
++ debugfs_create_file("barrier_nospec", 0600, powerpc_debugfs_root, NULL, |
858 |
++ &fops_barrier_nospec); |
859 |
++ return 0; |
860 |
++} |
861 |
++device_initcall(barrier_nospec_debugfs_init); |
862 |
++#endif /* CONFIG_DEBUG_FS */ |
863 |
++ |
864 |
++#ifdef CONFIG_PPC_FSL_BOOK3E |
865 |
++static int __init handle_nospectre_v2(char *p) |
866 |
++{ |
867 |
++ no_spectrev2 = true; |
868 |
++ |
869 |
++ return 0; |
870 |
++} |
871 |
++early_param("nospectre_v2", handle_nospectre_v2); |
872 |
++void setup_spectre_v2(void) |
873 |
++{ |
874 |
++ if (no_spectrev2) |
875 |
++ do_btb_flush_fixups(); |
876 |
++ else |
877 |
++ btb_flush_enabled = true; |
878 |
++} |
879 |
++#endif /* CONFIG_PPC_FSL_BOOK3E */ |
880 |
++ |
881 |
++#ifdef CONFIG_PPC_BOOK3S_64 |
882 |
+ ssize_t cpu_show_meltdown(struct device *dev, struct device_attribute *attr, char *buf) |
883 |
+ { |
884 |
+ bool thread_priv; |
885 |
+@@ -46,25 +155,39 @@ ssize_t cpu_show_meltdown(struct device *dev, struct device_attribute *attr, cha |
886 |
+ |
887 |
+ return sprintf(buf, "Vulnerable\n"); |
888 |
+ } |
889 |
++#endif |
890 |
+ |
891 |
+ ssize_t cpu_show_spectre_v1(struct device *dev, struct device_attribute *attr, char *buf) |
892 |
+ { |
893 |
+- if (!security_ftr_enabled(SEC_FTR_BNDS_CHK_SPEC_BAR)) |
894 |
+- return sprintf(buf, "Not affected\n"); |
895 |
++ struct seq_buf s; |
896 |
+ |
897 |
+- return sprintf(buf, "Vulnerable\n"); |
898 |
++ seq_buf_init(&s, buf, PAGE_SIZE - 1); |
899 |
++ |
900 |
++ if (security_ftr_enabled(SEC_FTR_BNDS_CHK_SPEC_BAR)) { |
901 |
++ if (barrier_nospec_enabled) |
902 |
++ seq_buf_printf(&s, "Mitigation: __user pointer sanitization"); |
903 |
++ else |
904 |
++ seq_buf_printf(&s, "Vulnerable"); |
905 |
++ |
906 |
++ if (security_ftr_enabled(SEC_FTR_SPEC_BAR_ORI31)) |
907 |
++ seq_buf_printf(&s, ", ori31 speculation barrier enabled"); |
908 |
++ |
909 |
++ seq_buf_printf(&s, "\n"); |
910 |
++ } else |
911 |
++ seq_buf_printf(&s, "Not affected\n"); |
912 |
++ |
913 |
++ return s.len; |
914 |
+ } |
915 |
+ |
916 |
+ ssize_t cpu_show_spectre_v2(struct device *dev, struct device_attribute *attr, char *buf) |
917 |
+ { |
918 |
+- bool bcs, ccd, ori; |
919 |
+ struct seq_buf s; |
920 |
++ bool bcs, ccd; |
921 |
+ |
922 |
+ seq_buf_init(&s, buf, PAGE_SIZE - 1); |
923 |
+ |
924 |
+ bcs = security_ftr_enabled(SEC_FTR_BCCTRL_SERIALISED); |
925 |
+ ccd = security_ftr_enabled(SEC_FTR_COUNT_CACHE_DISABLED); |
926 |
+- ori = security_ftr_enabled(SEC_FTR_SPEC_BAR_ORI31); |
927 |
+ |
928 |
+ if (bcs || ccd) { |
929 |
+ seq_buf_printf(&s, "Mitigation: "); |
930 |
+@@ -77,17 +200,23 @@ ssize_t cpu_show_spectre_v2(struct device *dev, struct device_attribute *attr, c |
931 |
+ |
932 |
+ if (ccd) |
933 |
+ seq_buf_printf(&s, "Indirect branch cache disabled"); |
934 |
+- } else |
935 |
++ } else if (count_cache_flush_type != COUNT_CACHE_FLUSH_NONE) { |
936 |
++ seq_buf_printf(&s, "Mitigation: Software count cache flush"); |
937 |
++ |
938 |
++ if (count_cache_flush_type == COUNT_CACHE_FLUSH_HW) |
939 |
++ seq_buf_printf(&s, " (hardware accelerated)"); |
940 |
++ } else if (btb_flush_enabled) { |
941 |
++ seq_buf_printf(&s, "Mitigation: Branch predictor state flush"); |
942 |
++ } else { |
943 |
+ seq_buf_printf(&s, "Vulnerable"); |
944 |
+- |
945 |
+- if (ori) |
946 |
+- seq_buf_printf(&s, ", ori31 speculation barrier enabled"); |
947 |
++ } |
948 |
+ |
949 |
+ seq_buf_printf(&s, "\n"); |
950 |
+ |
951 |
+ return s.len; |
952 |
+ } |
953 |
+ |
954 |
++#ifdef CONFIG_PPC_BOOK3S_64 |
955 |
+ /* |
956 |
+ * Store-forwarding barrier support. |
957 |
+ */ |
958 |
+@@ -235,3 +364,71 @@ static __init int stf_barrier_debugfs_init(void) |
959 |
+ } |
960 |
+ device_initcall(stf_barrier_debugfs_init); |
961 |
+ #endif /* CONFIG_DEBUG_FS */ |
962 |
++ |
963 |
++static void toggle_count_cache_flush(bool enable) |
964 |
++{ |
965 |
++ if (!enable || !security_ftr_enabled(SEC_FTR_FLUSH_COUNT_CACHE)) { |
966 |
++ patch_instruction_site(&patch__call_flush_count_cache, PPC_INST_NOP); |
967 |
++ count_cache_flush_type = COUNT_CACHE_FLUSH_NONE; |
968 |
++ pr_info("count-cache-flush: software flush disabled.\n"); |
969 |
++ return; |
970 |
++ } |
971 |
++ |
972 |
++ patch_branch_site(&patch__call_flush_count_cache, |
973 |
++ (u64)&flush_count_cache, BRANCH_SET_LINK); |
974 |
++ |
975 |
++ if (!security_ftr_enabled(SEC_FTR_BCCTR_FLUSH_ASSIST)) { |
976 |
++ count_cache_flush_type = COUNT_CACHE_FLUSH_SW; |
977 |
++ pr_info("count-cache-flush: full software flush sequence enabled.\n"); |
978 |
++ return; |
979 |
++ } |
980 |
++ |
981 |
++ patch_instruction_site(&patch__flush_count_cache_return, PPC_INST_BLR); |
982 |
++ count_cache_flush_type = COUNT_CACHE_FLUSH_HW; |
983 |
++ pr_info("count-cache-flush: hardware assisted flush sequence enabled\n"); |
984 |
++} |
985 |
++ |
986 |
++void setup_count_cache_flush(void) |
987 |
++{ |
988 |
++ toggle_count_cache_flush(true); |
989 |
++} |
990 |
++ |
991 |
++#ifdef CONFIG_DEBUG_FS |
992 |
++static int count_cache_flush_set(void *data, u64 val) |
993 |
++{ |
994 |
++ bool enable; |
995 |
++ |
996 |
++ if (val == 1) |
997 |
++ enable = true; |
998 |
++ else if (val == 0) |
999 |
++ enable = false; |
1000 |
++ else |
1001 |
++ return -EINVAL; |
1002 |
++ |
1003 |
++ toggle_count_cache_flush(enable); |
1004 |
++ |
1005 |
++ return 0; |
1006 |
++} |
1007 |
++ |
1008 |
++static int count_cache_flush_get(void *data, u64 *val) |
1009 |
++{ |
1010 |
++ if (count_cache_flush_type == COUNT_CACHE_FLUSH_NONE) |
1011 |
++ *val = 0; |
1012 |
++ else |
1013 |
++ *val = 1; |
1014 |
++ |
1015 |
++ return 0; |
1016 |
++} |
1017 |
++ |
1018 |
++DEFINE_SIMPLE_ATTRIBUTE(fops_count_cache_flush, count_cache_flush_get, |
1019 |
++ count_cache_flush_set, "%llu\n"); |
1020 |
++ |
1021 |
++static __init int count_cache_flush_debugfs_init(void) |
1022 |
++{ |
1023 |
++ debugfs_create_file("count_cache_flush", 0600, powerpc_debugfs_root, |
1024 |
++ NULL, &fops_count_cache_flush); |
1025 |
++ return 0; |
1026 |
++} |
1027 |
++device_initcall(count_cache_flush_debugfs_init); |
1028 |
++#endif /* CONFIG_DEBUG_FS */ |
1029 |
++#endif /* CONFIG_PPC_BOOK3S_64 */ |
1030 |
+diff --git a/arch/powerpc/kernel/setup-common.c b/arch/powerpc/kernel/setup-common.c |
1031 |
+index 008447664643..c58364c74dad 100644 |
1032 |
+--- a/arch/powerpc/kernel/setup-common.c |
1033 |
++++ b/arch/powerpc/kernel/setup-common.c |
1034 |
+@@ -937,6 +937,9 @@ void __init setup_arch(char **cmdline_p) |
1035 |
+ if (ppc_md.setup_arch) |
1036 |
+ ppc_md.setup_arch(); |
1037 |
+ |
1038 |
++ setup_barrier_nospec(); |
1039 |
++ setup_spectre_v2(); |
1040 |
++ |
1041 |
+ paging_init(); |
1042 |
+ |
1043 |
+ /* Initialize the MMU context management stuff. */ |
1044 |
+diff --git a/arch/powerpc/kernel/vmlinux.lds.S b/arch/powerpc/kernel/vmlinux.lds.S |
1045 |
+index c89ffb88fa3b..b0cf4af7ba84 100644 |
1046 |
+--- a/arch/powerpc/kernel/vmlinux.lds.S |
1047 |
++++ b/arch/powerpc/kernel/vmlinux.lds.S |
1048 |
+@@ -153,8 +153,25 @@ SECTIONS |
1049 |
+ *(__rfi_flush_fixup) |
1050 |
+ __stop___rfi_flush_fixup = .; |
1051 |
+ } |
1052 |
+-#endif |
1053 |
++#endif /* CONFIG_PPC64 */ |
1054 |
++ |
1055 |
++#ifdef CONFIG_PPC_BARRIER_NOSPEC |
1056 |
++ . = ALIGN(8); |
1057 |
++ __spec_barrier_fixup : AT(ADDR(__spec_barrier_fixup) - LOAD_OFFSET) { |
1058 |
++ __start___barrier_nospec_fixup = .; |
1059 |
++ *(__barrier_nospec_fixup) |
1060 |
++ __stop___barrier_nospec_fixup = .; |
1061 |
++ } |
1062 |
++#endif /* CONFIG_PPC_BARRIER_NOSPEC */ |
1063 |
+ |
1064 |
++#ifdef CONFIG_PPC_FSL_BOOK3E |
1065 |
++ . = ALIGN(8); |
1066 |
++ __spec_btb_flush_fixup : AT(ADDR(__spec_btb_flush_fixup) - LOAD_OFFSET) { |
1067 |
++ __start__btb_flush_fixup = .; |
1068 |
++ *(__btb_flush_fixup) |
1069 |
++ __stop__btb_flush_fixup = .; |
1070 |
++ } |
1071 |
++#endif |
1072 |
+ EXCEPTION_TABLE(0) |
1073 |
+ |
1074 |
+ NOTES :kernel :notes |
1075 |
+diff --git a/arch/powerpc/kvm/bookehv_interrupts.S b/arch/powerpc/kvm/bookehv_interrupts.S |
1076 |
+index 81bd8a07aa51..612b7f6a887f 100644 |
1077 |
+--- a/arch/powerpc/kvm/bookehv_interrupts.S |
1078 |
++++ b/arch/powerpc/kvm/bookehv_interrupts.S |
1079 |
+@@ -75,6 +75,10 @@ |
1080 |
+ PPC_LL r1, VCPU_HOST_STACK(r4) |
1081 |
+ PPC_LL r2, HOST_R2(r1) |
1082 |
+ |
1083 |
++START_BTB_FLUSH_SECTION |
1084 |
++ BTB_FLUSH(r10) |
1085 |
++END_BTB_FLUSH_SECTION |
1086 |
++ |
1087 |
+ mfspr r10, SPRN_PID |
1088 |
+ lwz r8, VCPU_HOST_PID(r4) |
1089 |
+ PPC_LL r11, VCPU_SHARED(r4) |
1090 |
+diff --git a/arch/powerpc/kvm/e500_emulate.c b/arch/powerpc/kvm/e500_emulate.c |
1091 |
+index 990db69a1d0b..fa88f641ac03 100644 |
1092 |
+--- a/arch/powerpc/kvm/e500_emulate.c |
1093 |
++++ b/arch/powerpc/kvm/e500_emulate.c |
1094 |
+@@ -277,6 +277,13 @@ int kvmppc_core_emulate_mtspr_e500(struct kvm_vcpu *vcpu, int sprn, ulong spr_va |
1095 |
+ vcpu->arch.pwrmgtcr0 = spr_val; |
1096 |
+ break; |
1097 |
+ |
1098 |
++ case SPRN_BUCSR: |
1099 |
++ /* |
1100 |
++ * If we are here, it means that we have already flushed the |
1101 |
++ * branch predictor, so just return to guest. |
1102 |
++ */ |
1103 |
++ break; |
1104 |
++ |
1105 |
+ /* extra exceptions */ |
1106 |
+ #ifdef CONFIG_SPE_POSSIBLE |
1107 |
+ case SPRN_IVOR32: |
1108 |
+diff --git a/arch/powerpc/lib/code-patching.c b/arch/powerpc/lib/code-patching.c |
1109 |
+index 130405158afa..c5154817178b 100644 |
1110 |
+--- a/arch/powerpc/lib/code-patching.c |
1111 |
++++ b/arch/powerpc/lib/code-patching.c |
1112 |
+@@ -206,6 +206,22 @@ int patch_branch(unsigned int *addr, unsigned long target, int flags) |
1113 |
+ return patch_instruction(addr, create_branch(addr, target, flags)); |
1114 |
+ } |
1115 |
+ |
1116 |
++int patch_branch_site(s32 *site, unsigned long target, int flags) |
1117 |
++{ |
1118 |
++ unsigned int *addr; |
1119 |
++ |
1120 |
++ addr = (unsigned int *)((unsigned long)site + *site); |
1121 |
++ return patch_instruction(addr, create_branch(addr, target, flags)); |
1122 |
++} |
1123 |
++ |
1124 |
++int patch_instruction_site(s32 *site, unsigned int instr) |
1125 |
++{ |
1126 |
++ unsigned int *addr; |
1127 |
++ |
1128 |
++ addr = (unsigned int *)((unsigned long)site + *site); |
1129 |
++ return patch_instruction(addr, instr); |
1130 |
++} |
1131 |
++ |
1132 |
+ bool is_offset_in_branch_range(long offset) |
1133 |
+ { |
1134 |
+ /* |
1135 |
+diff --git a/arch/powerpc/lib/feature-fixups.c b/arch/powerpc/lib/feature-fixups.c |
1136 |
+index e1bcdc32a851..de7861e09b41 100644 |
1137 |
+--- a/arch/powerpc/lib/feature-fixups.c |
1138 |
++++ b/arch/powerpc/lib/feature-fixups.c |
1139 |
+@@ -277,8 +277,101 @@ void do_rfi_flush_fixups(enum l1d_flush_type types) |
1140 |
+ (types & L1D_FLUSH_MTTRIG) ? "mttrig type" |
1141 |
+ : "unknown"); |
1142 |
+ } |
1143 |
++ |
1144 |
++void do_barrier_nospec_fixups_range(bool enable, void *fixup_start, void *fixup_end) |
1145 |
++{ |
1146 |
++ unsigned int instr, *dest; |
1147 |
++ long *start, *end; |
1148 |
++ int i; |
1149 |
++ |
1150 |
++ start = fixup_start; |
1151 |
++ end = fixup_end; |
1152 |
++ |
1153 |
++ instr = 0x60000000; /* nop */ |
1154 |
++ |
1155 |
++ if (enable) { |
1156 |
++ pr_info("barrier-nospec: using ORI speculation barrier\n"); |
1157 |
++ instr = 0x63ff0000; /* ori 31,31,0 speculation barrier */ |
1158 |
++ } |
1159 |
++ |
1160 |
++ for (i = 0; start < end; start++, i++) { |
1161 |
++ dest = (void *)start + *start; |
1162 |
++ |
1163 |
++ pr_devel("patching dest %lx\n", (unsigned long)dest); |
1164 |
++ patch_instruction(dest, instr); |
1165 |
++ } |
1166 |
++ |
1167 |
++ printk(KERN_DEBUG "barrier-nospec: patched %d locations\n", i); |
1168 |
++} |
1169 |
++ |
1170 |
+ #endif /* CONFIG_PPC_BOOK3S_64 */ |
1171 |
+ |
1172 |
++#ifdef CONFIG_PPC_BARRIER_NOSPEC |
1173 |
++void do_barrier_nospec_fixups(bool enable) |
1174 |
++{ |
1175 |
++ void *start, *end; |
1176 |
++ |
1177 |
++ start = PTRRELOC(&__start___barrier_nospec_fixup), |
1178 |
++ end = PTRRELOC(&__stop___barrier_nospec_fixup); |
1179 |
++ |
1180 |
++ do_barrier_nospec_fixups_range(enable, start, end); |
1181 |
++} |
1182 |
++#endif /* CONFIG_PPC_BARRIER_NOSPEC */ |
1183 |
++ |
1184 |
++#ifdef CONFIG_PPC_FSL_BOOK3E |
1185 |
++void do_barrier_nospec_fixups_range(bool enable, void *fixup_start, void *fixup_end) |
1186 |
++{ |
1187 |
++ unsigned int instr[2], *dest; |
1188 |
++ long *start, *end; |
1189 |
++ int i; |
1190 |
++ |
1191 |
++ start = fixup_start; |
1192 |
++ end = fixup_end; |
1193 |
++ |
1194 |
++ instr[0] = PPC_INST_NOP; |
1195 |
++ instr[1] = PPC_INST_NOP; |
1196 |
++ |
1197 |
++ if (enable) { |
1198 |
++ pr_info("barrier-nospec: using isync; sync as speculation barrier\n"); |
1199 |
++ instr[0] = PPC_INST_ISYNC; |
1200 |
++ instr[1] = PPC_INST_SYNC; |
1201 |
++ } |
1202 |
++ |
1203 |
++ for (i = 0; start < end; start++, i++) { |
1204 |
++ dest = (void *)start + *start; |
1205 |
++ |
1206 |
++ pr_devel("patching dest %lx\n", (unsigned long)dest); |
1207 |
++ patch_instruction(dest, instr[0]); |
1208 |
++ patch_instruction(dest + 1, instr[1]); |
1209 |
++ } |
1210 |
++ |
1211 |
++ printk(KERN_DEBUG "barrier-nospec: patched %d locations\n", i); |
1212 |
++} |
1213 |
++ |
1214 |
++static void patch_btb_flush_section(long *curr) |
1215 |
++{ |
1216 |
++ unsigned int *start, *end; |
1217 |
++ |
1218 |
++ start = (void *)curr + *curr; |
1219 |
++ end = (void *)curr + *(curr + 1); |
1220 |
++ for (; start < end; start++) { |
1221 |
++ pr_devel("patching dest %lx\n", (unsigned long)start); |
1222 |
++ patch_instruction(start, PPC_INST_NOP); |
1223 |
++ } |
1224 |
++} |
1225 |
++ |
1226 |
++void do_btb_flush_fixups(void) |
1227 |
++{ |
1228 |
++ long *start, *end; |
1229 |
++ |
1230 |
++ start = PTRRELOC(&__start__btb_flush_fixup); |
1231 |
++ end = PTRRELOC(&__stop__btb_flush_fixup); |
1232 |
++ |
1233 |
++ for (; start < end; start += 2) |
1234 |
++ patch_btb_flush_section(start); |
1235 |
++} |
1236 |
++#endif /* CONFIG_PPC_FSL_BOOK3E */ |
1237 |
++ |
1238 |
+ void do_lwsync_fixups(unsigned long value, void *fixup_start, void *fixup_end) |
1239 |
+ { |
1240 |
+ long *start, *end; |
1241 |
+diff --git a/arch/powerpc/mm/tlb_low_64e.S b/arch/powerpc/mm/tlb_low_64e.S |
1242 |
+index eb82d787d99a..b7e9c09dfe19 100644 |
1243 |
+--- a/arch/powerpc/mm/tlb_low_64e.S |
1244 |
++++ b/arch/powerpc/mm/tlb_low_64e.S |
1245 |
+@@ -69,6 +69,13 @@ END_FTR_SECTION_IFSET(CPU_FTR_EMB_HV) |
1246 |
+ std r15,EX_TLB_R15(r12) |
1247 |
+ std r10,EX_TLB_CR(r12) |
1248 |
+ #ifdef CONFIG_PPC_FSL_BOOK3E |
1249 |
++START_BTB_FLUSH_SECTION |
1250 |
++ mfspr r11, SPRN_SRR1 |
1251 |
++ andi. r10,r11,MSR_PR |
1252 |
++ beq 1f |
1253 |
++ BTB_FLUSH(r10) |
1254 |
++1: |
1255 |
++END_BTB_FLUSH_SECTION |
1256 |
+ std r7,EX_TLB_R7(r12) |
1257 |
+ #endif |
1258 |
+ TLB_MISS_PROLOG_STATS |
1259 |
+diff --git a/arch/powerpc/net/bpf_jit.h b/arch/powerpc/net/bpf_jit.h |
1260 |
+index 47fc6660845d..68dece206048 100644 |
1261 |
+--- a/arch/powerpc/net/bpf_jit.h |
1262 |
++++ b/arch/powerpc/net/bpf_jit.h |
1263 |
+@@ -51,6 +51,8 @@ |
1264 |
+ #define PPC_LIS(r, i) PPC_ADDIS(r, 0, i) |
1265 |
+ #define PPC_STD(r, base, i) EMIT(PPC_INST_STD | ___PPC_RS(r) | \ |
1266 |
+ ___PPC_RA(base) | ((i) & 0xfffc)) |
1267 |
++#define PPC_STDX(r, base, b) EMIT(PPC_INST_STDX | ___PPC_RS(r) | \ |
1268 |
++ ___PPC_RA(base) | ___PPC_RB(b)) |
1269 |
+ #define PPC_STDU(r, base, i) EMIT(PPC_INST_STDU | ___PPC_RS(r) | \ |
1270 |
+ ___PPC_RA(base) | ((i) & 0xfffc)) |
1271 |
+ #define PPC_STW(r, base, i) EMIT(PPC_INST_STW | ___PPC_RS(r) | \ |
1272 |
+@@ -65,7 +67,9 @@ |
1273 |
+ #define PPC_LBZ(r, base, i) EMIT(PPC_INST_LBZ | ___PPC_RT(r) | \ |
1274 |
+ ___PPC_RA(base) | IMM_L(i)) |
1275 |
+ #define PPC_LD(r, base, i) EMIT(PPC_INST_LD | ___PPC_RT(r) | \ |
1276 |
+- ___PPC_RA(base) | IMM_L(i)) |
1277 |
++ ___PPC_RA(base) | ((i) & 0xfffc)) |
1278 |
++#define PPC_LDX(r, base, b) EMIT(PPC_INST_LDX | ___PPC_RT(r) | \ |
1279 |
++ ___PPC_RA(base) | ___PPC_RB(b)) |
1280 |
+ #define PPC_LWZ(r, base, i) EMIT(PPC_INST_LWZ | ___PPC_RT(r) | \ |
1281 |
+ ___PPC_RA(base) | IMM_L(i)) |
1282 |
+ #define PPC_LHZ(r, base, i) EMIT(PPC_INST_LHZ | ___PPC_RT(r) | \ |
1283 |
+@@ -85,17 +89,6 @@ |
1284 |
+ ___PPC_RA(a) | ___PPC_RB(b)) |
1285 |
+ #define PPC_BPF_STDCX(s, a, b) EMIT(PPC_INST_STDCX | ___PPC_RS(s) | \ |
1286 |
+ ___PPC_RA(a) | ___PPC_RB(b)) |
1287 |
+- |
1288 |
+-#ifdef CONFIG_PPC64 |
1289 |
+-#define PPC_BPF_LL(r, base, i) do { PPC_LD(r, base, i); } while(0) |
1290 |
+-#define PPC_BPF_STL(r, base, i) do { PPC_STD(r, base, i); } while(0) |
1291 |
+-#define PPC_BPF_STLU(r, base, i) do { PPC_STDU(r, base, i); } while(0) |
1292 |
+-#else |
1293 |
+-#define PPC_BPF_LL(r, base, i) do { PPC_LWZ(r, base, i); } while(0) |
1294 |
+-#define PPC_BPF_STL(r, base, i) do { PPC_STW(r, base, i); } while(0) |
1295 |
+-#define PPC_BPF_STLU(r, base, i) do { PPC_STWU(r, base, i); } while(0) |
1296 |
+-#endif |
1297 |
+- |
1298 |
+ #define PPC_CMPWI(a, i) EMIT(PPC_INST_CMPWI | ___PPC_RA(a) | IMM_L(i)) |
1299 |
+ #define PPC_CMPDI(a, i) EMIT(PPC_INST_CMPDI | ___PPC_RA(a) | IMM_L(i)) |
1300 |
+ #define PPC_CMPW(a, b) EMIT(PPC_INST_CMPW | ___PPC_RA(a) | \ |
1301 |
+diff --git a/arch/powerpc/net/bpf_jit32.h b/arch/powerpc/net/bpf_jit32.h |
1302 |
+index a8cd7e289ecd..81a9045d8410 100644 |
1303 |
+--- a/arch/powerpc/net/bpf_jit32.h |
1304 |
++++ b/arch/powerpc/net/bpf_jit32.h |
1305 |
+@@ -122,6 +122,10 @@ DECLARE_LOAD_FUNC(sk_load_byte_msh); |
1306 |
+ #define PPC_NTOHS_OFFS(r, base, i) PPC_LHZ_OFFS(r, base, i) |
1307 |
+ #endif |
1308 |
+ |
1309 |
++#define PPC_BPF_LL(r, base, i) do { PPC_LWZ(r, base, i); } while(0) |
1310 |
++#define PPC_BPF_STL(r, base, i) do { PPC_STW(r, base, i); } while(0) |
1311 |
++#define PPC_BPF_STLU(r, base, i) do { PPC_STWU(r, base, i); } while(0) |
1312 |
++ |
1313 |
+ #define SEEN_DATAREF 0x10000 /* might call external helpers */ |
1314 |
+ #define SEEN_XREG 0x20000 /* X reg is used */ |
1315 |
+ #define SEEN_MEM 0x40000 /* SEEN_MEM+(1<<n) = use mem[n] for temporary |
1316 |
+diff --git a/arch/powerpc/net/bpf_jit64.h b/arch/powerpc/net/bpf_jit64.h |
1317 |
+index 62fa7589db2b..bb944b6018d7 100644 |
1318 |
+--- a/arch/powerpc/net/bpf_jit64.h |
1319 |
++++ b/arch/powerpc/net/bpf_jit64.h |
1320 |
+@@ -86,6 +86,26 @@ DECLARE_LOAD_FUNC(sk_load_byte); |
1321 |
+ (imm >= SKF_LL_OFF ? func##_negative_offset : func) : \ |
1322 |
+ func##_positive_offset) |
1323 |
+ |
1324 |
++/* |
1325 |
++ * WARNING: These can use TMP_REG_2 if the offset is not at word boundary, |
1326 |
++ * so ensure that it isn't in use already. |
1327 |
++ */ |
1328 |
++#define PPC_BPF_LL(r, base, i) do { \ |
1329 |
++ if ((i) % 4) { \ |
1330 |
++ PPC_LI(b2p[TMP_REG_2], (i)); \ |
1331 |
++ PPC_LDX(r, base, b2p[TMP_REG_2]); \ |
1332 |
++ } else \ |
1333 |
++ PPC_LD(r, base, i); \ |
1334 |
++ } while(0) |
1335 |
++#define PPC_BPF_STL(r, base, i) do { \ |
1336 |
++ if ((i) % 4) { \ |
1337 |
++ PPC_LI(b2p[TMP_REG_2], (i)); \ |
1338 |
++ PPC_STDX(r, base, b2p[TMP_REG_2]); \ |
1339 |
++ } else \ |
1340 |
++ PPC_STD(r, base, i); \ |
1341 |
++ } while(0) |
1342 |
++#define PPC_BPF_STLU(r, base, i) do { PPC_STDU(r, base, i); } while(0) |
1343 |
++ |
1344 |
+ #define SEEN_FUNC 0x1000 /* might call external helpers */ |
1345 |
+ #define SEEN_STACK 0x2000 /* uses BPF stack */ |
1346 |
+ #define SEEN_SKB 0x4000 /* uses sk_buff */ |
1347 |
+diff --git a/arch/powerpc/net/bpf_jit_comp64.c b/arch/powerpc/net/bpf_jit_comp64.c |
1348 |
+index fee1e1f8c9d3..3a21d3956ad4 100644 |
1349 |
+--- a/arch/powerpc/net/bpf_jit_comp64.c |
1350 |
++++ b/arch/powerpc/net/bpf_jit_comp64.c |
1351 |
+@@ -261,7 +261,7 @@ static void bpf_jit_emit_tail_call(u32 *image, struct codegen_context *ctx, u32 |
1352 |
+ * if (tail_call_cnt > MAX_TAIL_CALL_CNT) |
1353 |
+ * goto out; |
1354 |
+ */ |
1355 |
+- PPC_LD(b2p[TMP_REG_1], 1, bpf_jit_stack_tailcallcnt(ctx)); |
1356 |
++ PPC_BPF_LL(b2p[TMP_REG_1], 1, bpf_jit_stack_tailcallcnt(ctx)); |
1357 |
+ PPC_CMPLWI(b2p[TMP_REG_1], MAX_TAIL_CALL_CNT); |
1358 |
+ PPC_BCC(COND_GT, out); |
1359 |
+ |
1360 |
+@@ -274,7 +274,7 @@ static void bpf_jit_emit_tail_call(u32 *image, struct codegen_context *ctx, u32 |
1361 |
+ /* prog = array->ptrs[index]; */ |
1362 |
+ PPC_MULI(b2p[TMP_REG_1], b2p_index, 8); |
1363 |
+ PPC_ADD(b2p[TMP_REG_1], b2p[TMP_REG_1], b2p_bpf_array); |
1364 |
+- PPC_LD(b2p[TMP_REG_1], b2p[TMP_REG_1], offsetof(struct bpf_array, ptrs)); |
1365 |
++ PPC_BPF_LL(b2p[TMP_REG_1], b2p[TMP_REG_1], offsetof(struct bpf_array, ptrs)); |
1366 |
+ |
1367 |
+ /* |
1368 |
+ * if (prog == NULL) |
1369 |
+@@ -284,7 +284,7 @@ static void bpf_jit_emit_tail_call(u32 *image, struct codegen_context *ctx, u32 |
1370 |
+ PPC_BCC(COND_EQ, out); |
1371 |
+ |
1372 |
+ /* goto *(prog->bpf_func + prologue_size); */ |
1373 |
+- PPC_LD(b2p[TMP_REG_1], b2p[TMP_REG_1], offsetof(struct bpf_prog, bpf_func)); |
1374 |
++ PPC_BPF_LL(b2p[TMP_REG_1], b2p[TMP_REG_1], offsetof(struct bpf_prog, bpf_func)); |
1375 |
+ #ifdef PPC64_ELF_ABI_v1 |
1376 |
+ /* skip past the function descriptor */ |
1377 |
+ PPC_ADDI(b2p[TMP_REG_1], b2p[TMP_REG_1], |
1378 |
+@@ -616,7 +616,7 @@ bpf_alu32_trunc: |
1379 |
+ * the instructions generated will remain the |
1380 |
+ * same across all passes |
1381 |
+ */ |
1382 |
+- PPC_STD(dst_reg, 1, bpf_jit_stack_local(ctx)); |
1383 |
++ PPC_BPF_STL(dst_reg, 1, bpf_jit_stack_local(ctx)); |
1384 |
+ PPC_ADDI(b2p[TMP_REG_1], 1, bpf_jit_stack_local(ctx)); |
1385 |
+ PPC_LDBRX(dst_reg, 0, b2p[TMP_REG_1]); |
1386 |
+ break; |
1387 |
+@@ -672,7 +672,7 @@ emit_clear: |
1388 |
+ PPC_LI32(b2p[TMP_REG_1], imm); |
1389 |
+ src_reg = b2p[TMP_REG_1]; |
1390 |
+ } |
1391 |
+- PPC_STD(src_reg, dst_reg, off); |
1392 |
++ PPC_BPF_STL(src_reg, dst_reg, off); |
1393 |
+ break; |
1394 |
+ |
1395 |
+ /* |
1396 |
+@@ -719,7 +719,7 @@ emit_clear: |
1397 |
+ break; |
1398 |
+ /* dst = *(u64 *)(ul) (src + off) */ |
1399 |
+ case BPF_LDX | BPF_MEM | BPF_DW: |
1400 |
+- PPC_LD(dst_reg, src_reg, off); |
1401 |
++ PPC_BPF_LL(dst_reg, src_reg, off); |
1402 |
+ break; |
1403 |
+ |
1404 |
+ /* |
1405 |
+diff --git a/arch/powerpc/platforms/powernv/setup.c b/arch/powerpc/platforms/powernv/setup.c |
1406 |
+index fd143c934768..888aa9584e94 100644 |
1407 |
+--- a/arch/powerpc/platforms/powernv/setup.c |
1408 |
++++ b/arch/powerpc/platforms/powernv/setup.c |
1409 |
+@@ -77,6 +77,12 @@ static void init_fw_feat_flags(struct device_node *np) |
1410 |
+ if (fw_feature_is("enabled", "fw-count-cache-disabled", np)) |
1411 |
+ security_ftr_set(SEC_FTR_COUNT_CACHE_DISABLED); |
1412 |
+ |
1413 |
++ if (fw_feature_is("enabled", "fw-count-cache-flush-bcctr2,0,0", np)) |
1414 |
++ security_ftr_set(SEC_FTR_BCCTR_FLUSH_ASSIST); |
1415 |
++ |
1416 |
++ if (fw_feature_is("enabled", "needs-count-cache-flush-on-context-switch", np)) |
1417 |
++ security_ftr_set(SEC_FTR_FLUSH_COUNT_CACHE); |
1418 |
++ |
1419 |
+ /* |
1420 |
+ * The features below are enabled by default, so we instead look to see |
1421 |
+ * if firmware has *disabled* them, and clear them if so. |
1422 |
+@@ -123,6 +129,7 @@ static void pnv_setup_rfi_flush(void) |
1423 |
+ security_ftr_enabled(SEC_FTR_L1D_FLUSH_HV)); |
1424 |
+ |
1425 |
+ setup_rfi_flush(type, enable); |
1426 |
++ setup_count_cache_flush(); |
1427 |
+ } |
1428 |
+ |
1429 |
+ static void __init pnv_setup_arch(void) |
1430 |
+diff --git a/arch/powerpc/platforms/pseries/setup.c b/arch/powerpc/platforms/pseries/setup.c |
1431 |
+index 45f814041448..6a0ad56e89b9 100644 |
1432 |
+--- a/arch/powerpc/platforms/pseries/setup.c |
1433 |
++++ b/arch/powerpc/platforms/pseries/setup.c |
1434 |
+@@ -484,6 +484,12 @@ static void init_cpu_char_feature_flags(struct h_cpu_char_result *result) |
1435 |
+ if (result->character & H_CPU_CHAR_COUNT_CACHE_DISABLED) |
1436 |
+ security_ftr_set(SEC_FTR_COUNT_CACHE_DISABLED); |
1437 |
+ |
1438 |
++ if (result->character & H_CPU_CHAR_BCCTR_FLUSH_ASSIST) |
1439 |
++ security_ftr_set(SEC_FTR_BCCTR_FLUSH_ASSIST); |
1440 |
++ |
1441 |
++ if (result->behaviour & H_CPU_BEHAV_FLUSH_COUNT_CACHE) |
1442 |
++ security_ftr_set(SEC_FTR_FLUSH_COUNT_CACHE); |
1443 |
++ |
1444 |
+ /* |
1445 |
+ * The features below are enabled by default, so we instead look to see |
1446 |
+ * if firmware has *disabled* them, and clear them if so. |
1447 |
+@@ -534,6 +540,7 @@ void pseries_setup_rfi_flush(void) |
1448 |
+ security_ftr_enabled(SEC_FTR_L1D_FLUSH_PR); |
1449 |
+ |
1450 |
+ setup_rfi_flush(types, enable); |
1451 |
++ setup_count_cache_flush(); |
1452 |
+ } |
1453 |
+ |
1454 |
+ static void __init pSeries_setup_arch(void) |
1455 |
+diff --git a/arch/x86/Kconfig b/arch/x86/Kconfig |
1456 |
+index 4f393eb9745f..8fec1585ac7a 100644 |
1457 |
+--- a/arch/x86/Kconfig |
1458 |
++++ b/arch/x86/Kconfig |
1459 |
+@@ -2139,14 +2139,8 @@ config RANDOMIZE_MEMORY_PHYSICAL_PADDING |
1460 |
+ If unsure, leave at the default value. |
1461 |
+ |
1462 |
+ config HOTPLUG_CPU |
1463 |
+- bool "Support for hot-pluggable CPUs" |
1464 |
++ def_bool y |
1465 |
+ depends on SMP |
1466 |
+- ---help--- |
1467 |
+- Say Y here to allow turning CPUs off and on. CPUs can be |
1468 |
+- controlled through /sys/devices/system/cpu. |
1469 |
+- ( Note: power management support will enable this option |
1470 |
+- automatically on SMP systems. ) |
1471 |
+- Say N if you want to disable CPU hotplug. |
1472 |
+ |
1473 |
+ config BOOTPARAM_HOTPLUG_CPU0 |
1474 |
+ bool "Set default setting of cpu0_hotpluggable" |
1475 |
+diff --git a/arch/x86/include/asm/kvm_host.h b/arch/x86/include/asm/kvm_host.h |
1476 |
+index d2ae93faafe8..f9a4b85d7309 100644 |
1477 |
+--- a/arch/x86/include/asm/kvm_host.h |
1478 |
++++ b/arch/x86/include/asm/kvm_host.h |
1479 |
+@@ -509,6 +509,7 @@ struct kvm_vcpu_arch { |
1480 |
+ bool tpr_access_reporting; |
1481 |
+ u64 ia32_xss; |
1482 |
+ u64 microcode_version; |
1483 |
++ u64 arch_capabilities; |
1484 |
+ |
1485 |
+ /* |
1486 |
+ * Paging state of the vcpu |
1487 |
+diff --git a/arch/x86/kvm/vmx.c b/arch/x86/kvm/vmx.c |
1488 |
+index 229d5e39f5c0..4bd878c9f7d2 100644 |
1489 |
+--- a/arch/x86/kvm/vmx.c |
1490 |
++++ b/arch/x86/kvm/vmx.c |
1491 |
+@@ -740,7 +740,6 @@ struct vcpu_vmx { |
1492 |
+ u64 msr_guest_kernel_gs_base; |
1493 |
+ #endif |
1494 |
+ |
1495 |
+- u64 arch_capabilities; |
1496 |
+ u64 spec_ctrl; |
1497 |
+ |
1498 |
+ u32 vm_entry_controls_shadow; |
1499 |
+@@ -3493,12 +3492,6 @@ static int vmx_get_msr(struct kvm_vcpu *vcpu, struct msr_data *msr_info) |
1500 |
+ |
1501 |
+ msr_info->data = to_vmx(vcpu)->spec_ctrl; |
1502 |
+ break; |
1503 |
+- case MSR_IA32_ARCH_CAPABILITIES: |
1504 |
+- if (!msr_info->host_initiated && |
1505 |
+- !guest_cpuid_has(vcpu, X86_FEATURE_ARCH_CAPABILITIES)) |
1506 |
+- return 1; |
1507 |
+- msr_info->data = to_vmx(vcpu)->arch_capabilities; |
1508 |
+- break; |
1509 |
+ case MSR_IA32_SYSENTER_CS: |
1510 |
+ msr_info->data = vmcs_read32(GUEST_SYSENTER_CS); |
1511 |
+ break; |
1512 |
+@@ -3663,11 +3656,6 @@ static int vmx_set_msr(struct kvm_vcpu *vcpu, struct msr_data *msr_info) |
1513 |
+ vmx_disable_intercept_for_msr(vmx->vmcs01.msr_bitmap, MSR_IA32_PRED_CMD, |
1514 |
+ MSR_TYPE_W); |
1515 |
+ break; |
1516 |
+- case MSR_IA32_ARCH_CAPABILITIES: |
1517 |
+- if (!msr_info->host_initiated) |
1518 |
+- return 1; |
1519 |
+- vmx->arch_capabilities = data; |
1520 |
+- break; |
1521 |
+ case MSR_IA32_CR_PAT: |
1522 |
+ if (vmcs_config.vmentry_ctrl & VM_ENTRY_LOAD_IA32_PAT) { |
1523 |
+ if (!kvm_mtrr_valid(vcpu, MSR_IA32_CR_PAT, data)) |
1524 |
+@@ -5929,8 +5917,6 @@ static int vmx_vcpu_setup(struct vcpu_vmx *vmx) |
1525 |
+ ++vmx->nmsrs; |
1526 |
+ } |
1527 |
+ |
1528 |
+- vmx->arch_capabilities = kvm_get_arch_capabilities(); |
1529 |
+- |
1530 |
+ vm_exit_controls_init(vmx, vmcs_config.vmexit_ctrl); |
1531 |
+ |
1532 |
+ /* 22.2.1, 20.8.1 */ |
1533 |
+diff --git a/arch/x86/kvm/x86.c b/arch/x86/kvm/x86.c |
1534 |
+index ce5b3dc348ce..5f85f17ffb75 100644 |
1535 |
+--- a/arch/x86/kvm/x86.c |
1536 |
++++ b/arch/x86/kvm/x86.c |
1537 |
+@@ -2234,6 +2234,11 @@ int kvm_set_msr_common(struct kvm_vcpu *vcpu, struct msr_data *msr_info) |
1538 |
+ if (msr_info->host_initiated) |
1539 |
+ vcpu->arch.microcode_version = data; |
1540 |
+ break; |
1541 |
++ case MSR_IA32_ARCH_CAPABILITIES: |
1542 |
++ if (!msr_info->host_initiated) |
1543 |
++ return 1; |
1544 |
++ vcpu->arch.arch_capabilities = data; |
1545 |
++ break; |
1546 |
+ case MSR_EFER: |
1547 |
+ return set_efer(vcpu, data); |
1548 |
+ case MSR_K7_HWCR: |
1549 |
+@@ -2523,6 +2528,12 @@ int kvm_get_msr_common(struct kvm_vcpu *vcpu, struct msr_data *msr_info) |
1550 |
+ case MSR_IA32_UCODE_REV: |
1551 |
+ msr_info->data = vcpu->arch.microcode_version; |
1552 |
+ break; |
1553 |
++ case MSR_IA32_ARCH_CAPABILITIES: |
1554 |
++ if (!msr_info->host_initiated && |
1555 |
++ !guest_cpuid_has(vcpu, X86_FEATURE_ARCH_CAPABILITIES)) |
1556 |
++ return 1; |
1557 |
++ msr_info->data = vcpu->arch.arch_capabilities; |
1558 |
++ break; |
1559 |
+ case MSR_MTRRcap: |
1560 |
+ case 0x200 ... 0x2ff: |
1561 |
+ return kvm_mtrr_get_msr(vcpu, msr_info->index, &msr_info->data); |
1562 |
+@@ -7918,6 +7929,7 @@ int kvm_arch_vcpu_setup(struct kvm_vcpu *vcpu) |
1563 |
+ { |
1564 |
+ int r; |
1565 |
+ |
1566 |
++ vcpu->arch.arch_capabilities = kvm_get_arch_capabilities(); |
1567 |
+ kvm_vcpu_mtrr_init(vcpu); |
1568 |
+ r = vcpu_load(vcpu); |
1569 |
+ if (r) |
1570 |
+diff --git a/drivers/gpio/gpio-adnp.c b/drivers/gpio/gpio-adnp.c |
1571 |
+index 89863ea25de1..ee923b1b820c 100644 |
1572 |
+--- a/drivers/gpio/gpio-adnp.c |
1573 |
++++ b/drivers/gpio/gpio-adnp.c |
1574 |
+@@ -132,8 +132,10 @@ static int adnp_gpio_direction_input(struct gpio_chip *chip, unsigned offset) |
1575 |
+ if (err < 0) |
1576 |
+ goto out; |
1577 |
+ |
1578 |
+- if (err & BIT(pos)) |
1579 |
+- err = -EACCES; |
1580 |
++ if (value & BIT(pos)) { |
1581 |
++ err = -EPERM; |
1582 |
++ goto out; |
1583 |
++ } |
1584 |
+ |
1585 |
+ err = 0; |
1586 |
+ |
1587 |
+diff --git a/drivers/gpio/gpio-exar.c b/drivers/gpio/gpio-exar.c |
1588 |
+index 0ecd2369c2ca..a09d2f9ebacc 100644 |
1589 |
+--- a/drivers/gpio/gpio-exar.c |
1590 |
++++ b/drivers/gpio/gpio-exar.c |
1591 |
+@@ -148,6 +148,8 @@ static int gpio_exar_probe(struct platform_device *pdev) |
1592 |
+ mutex_init(&exar_gpio->lock); |
1593 |
+ |
1594 |
+ index = ida_simple_get(&ida_index, 0, 0, GFP_KERNEL); |
1595 |
++ if (index < 0) |
1596 |
++ goto err_destroy; |
1597 |
+ |
1598 |
+ sprintf(exar_gpio->name, "exar_gpio%d", index); |
1599 |
+ exar_gpio->gpio_chip.label = exar_gpio->name; |
1600 |
+diff --git a/drivers/gpu/drm/vgem/vgem_drv.c b/drivers/gpu/drm/vgem/vgem_drv.c |
1601 |
+index 81c7ab10c083..aa592277d510 100644 |
1602 |
+--- a/drivers/gpu/drm/vgem/vgem_drv.c |
1603 |
++++ b/drivers/gpu/drm/vgem/vgem_drv.c |
1604 |
+@@ -192,13 +192,9 @@ static struct drm_gem_object *vgem_gem_create(struct drm_device *dev, |
1605 |
+ ret = drm_gem_handle_create(file, &obj->base, handle); |
1606 |
+ drm_gem_object_put_unlocked(&obj->base); |
1607 |
+ if (ret) |
1608 |
+- goto err; |
1609 |
++ return ERR_PTR(ret); |
1610 |
+ |
1611 |
+ return &obj->base; |
1612 |
+- |
1613 |
+-err: |
1614 |
+- __vgem_gem_destroy(obj); |
1615 |
+- return ERR_PTR(ret); |
1616 |
+ } |
1617 |
+ |
1618 |
+ static int vgem_gem_dumb_create(struct drm_file *file, struct drm_device *dev, |
1619 |
+diff --git a/drivers/isdn/hardware/mISDN/hfcmulti.c b/drivers/isdn/hardware/mISDN/hfcmulti.c |
1620 |
+index 3cf07b8ced1c..df01018acff1 100644 |
1621 |
+--- a/drivers/isdn/hardware/mISDN/hfcmulti.c |
1622 |
++++ b/drivers/isdn/hardware/mISDN/hfcmulti.c |
1623 |
+@@ -4367,7 +4367,8 @@ setup_pci(struct hfc_multi *hc, struct pci_dev *pdev, |
1624 |
+ if (m->clock2) |
1625 |
+ test_and_set_bit(HFC_CHIP_CLOCK2, &hc->chip); |
1626 |
+ |
1627 |
+- if (ent->device == 0xB410) { |
1628 |
++ if (ent->vendor == PCI_VENDOR_ID_DIGIUM && |
1629 |
++ ent->device == PCI_DEVICE_ID_DIGIUM_HFC4S) { |
1630 |
+ test_and_set_bit(HFC_CHIP_B410P, &hc->chip); |
1631 |
+ test_and_set_bit(HFC_CHIP_PCM_MASTER, &hc->chip); |
1632 |
+ test_and_clear_bit(HFC_CHIP_PCM_SLAVE, &hc->chip); |
1633 |
+diff --git a/drivers/net/dsa/qca8k.c b/drivers/net/dsa/qca8k.c |
1634 |
+index 9645c8f05c7f..c3c9d7e33bd6 100644 |
1635 |
+--- a/drivers/net/dsa/qca8k.c |
1636 |
++++ b/drivers/net/dsa/qca8k.c |
1637 |
+@@ -629,22 +629,6 @@ qca8k_adjust_link(struct dsa_switch *ds, int port, struct phy_device *phy) |
1638 |
+ qca8k_port_set_status(priv, port, 1); |
1639 |
+ } |
1640 |
+ |
1641 |
+-static int |
1642 |
+-qca8k_phy_read(struct dsa_switch *ds, int phy, int regnum) |
1643 |
+-{ |
1644 |
+- struct qca8k_priv *priv = (struct qca8k_priv *)ds->priv; |
1645 |
+- |
1646 |
+- return mdiobus_read(priv->bus, phy, regnum); |
1647 |
+-} |
1648 |
+- |
1649 |
+-static int |
1650 |
+-qca8k_phy_write(struct dsa_switch *ds, int phy, int regnum, u16 val) |
1651 |
+-{ |
1652 |
+- struct qca8k_priv *priv = (struct qca8k_priv *)ds->priv; |
1653 |
+- |
1654 |
+- return mdiobus_write(priv->bus, phy, regnum, val); |
1655 |
+-} |
1656 |
+- |
1657 |
+ static void |
1658 |
+ qca8k_get_strings(struct dsa_switch *ds, int port, uint8_t *data) |
1659 |
+ { |
1660 |
+@@ -879,8 +863,6 @@ static const struct dsa_switch_ops qca8k_switch_ops = { |
1661 |
+ .setup = qca8k_setup, |
1662 |
+ .adjust_link = qca8k_adjust_link, |
1663 |
+ .get_strings = qca8k_get_strings, |
1664 |
+- .phy_read = qca8k_phy_read, |
1665 |
+- .phy_write = qca8k_phy_write, |
1666 |
+ .get_ethtool_stats = qca8k_get_ethtool_stats, |
1667 |
+ .get_sset_count = qca8k_get_sset_count, |
1668 |
+ .get_mac_eee = qca8k_get_mac_eee, |
1669 |
+diff --git a/drivers/net/ethernet/8390/mac8390.c b/drivers/net/ethernet/8390/mac8390.c |
1670 |
+index 9497f18eaba0..e95a7567bb23 100644 |
1671 |
+--- a/drivers/net/ethernet/8390/mac8390.c |
1672 |
++++ b/drivers/net/ethernet/8390/mac8390.c |
1673 |
+@@ -156,8 +156,6 @@ static void dayna_block_output(struct net_device *dev, int count, |
1674 |
+ #define memcpy_fromio(a, b, c) memcpy((a), (void *)(b), (c)) |
1675 |
+ #define memcpy_toio(a, b, c) memcpy((void *)(a), (b), (c)) |
1676 |
+ |
1677 |
+-#define memcmp_withio(a, b, c) memcmp((a), (void *)(b), (c)) |
1678 |
+- |
1679 |
+ /* Slow Sane (16-bit chunk memory read/write) Cabletron uses this */ |
1680 |
+ static void slow_sane_get_8390_hdr(struct net_device *dev, |
1681 |
+ struct e8390_pkt_hdr *hdr, int ring_page); |
1682 |
+@@ -237,19 +235,26 @@ static enum mac8390_type __init mac8390_ident(struct nubus_dev *dev) |
1683 |
+ |
1684 |
+ static enum mac8390_access __init mac8390_testio(volatile unsigned long membase) |
1685 |
+ { |
1686 |
+- unsigned long outdata = 0xA5A0B5B0; |
1687 |
+- unsigned long indata = 0x00000000; |
1688 |
++ u32 outdata = 0xA5A0B5B0; |
1689 |
++ u32 indata = 0; |
1690 |
++ |
1691 |
+ /* Try writing 32 bits */ |
1692 |
+- memcpy_toio(membase, &outdata, 4); |
1693 |
+- /* Now compare them */ |
1694 |
+- if (memcmp_withio(&outdata, membase, 4) == 0) |
1695 |
++ nubus_writel(outdata, membase); |
1696 |
++ /* Now read it back */ |
1697 |
++ indata = nubus_readl(membase); |
1698 |
++ if (outdata == indata) |
1699 |
+ return ACCESS_32; |
1700 |
++ |
1701 |
++ outdata = 0xC5C0D5D0; |
1702 |
++ indata = 0; |
1703 |
++ |
1704 |
+ /* Write 16 bit output */ |
1705 |
+ word_memcpy_tocard(membase, &outdata, 4); |
1706 |
+ /* Now read it back */ |
1707 |
+ word_memcpy_fromcard(&indata, membase, 4); |
1708 |
+ if (outdata == indata) |
1709 |
+ return ACCESS_16; |
1710 |
++ |
1711 |
+ return ACCESS_UNKNOWN; |
1712 |
+ } |
1713 |
+ |
1714 |
+diff --git a/drivers/net/ethernet/aquantia/atlantic/aq_ring.c b/drivers/net/ethernet/aquantia/atlantic/aq_ring.c |
1715 |
+index 640babf752ea..784c3522aaa3 100644 |
1716 |
+--- a/drivers/net/ethernet/aquantia/atlantic/aq_ring.c |
1717 |
++++ b/drivers/net/ethernet/aquantia/atlantic/aq_ring.c |
1718 |
+@@ -270,11 +270,12 @@ int aq_ring_rx_clean(struct aq_ring_s *self, |
1719 |
+ } else { |
1720 |
+ if (buff->is_ip_cso) { |
1721 |
+ __skb_incr_checksum_unnecessary(skb); |
1722 |
+- if (buff->is_udp_cso || buff->is_tcp_cso) |
1723 |
+- __skb_incr_checksum_unnecessary(skb); |
1724 |
+ } else { |
1725 |
+ skb->ip_summed = CHECKSUM_NONE; |
1726 |
+ } |
1727 |
++ |
1728 |
++ if (buff->is_udp_cso || buff->is_tcp_cso) |
1729 |
++ __skb_incr_checksum_unnecessary(skb); |
1730 |
+ } |
1731 |
+ |
1732 |
+ skb_set_hash(skb, buff->rss_hash, |
1733 |
+diff --git a/drivers/net/ethernet/cavium/thunder/nicvf_queues.c b/drivers/net/ethernet/cavium/thunder/nicvf_queues.c |
1734 |
+index 09494e1c77c5..7ad1d56d8389 100644 |
1735 |
+--- a/drivers/net/ethernet/cavium/thunder/nicvf_queues.c |
1736 |
++++ b/drivers/net/ethernet/cavium/thunder/nicvf_queues.c |
1737 |
+@@ -105,20 +105,19 @@ static inline struct pgcache *nicvf_alloc_page(struct nicvf *nic, |
1738 |
+ /* Check if page can be recycled */ |
1739 |
+ if (page) { |
1740 |
+ ref_count = page_ref_count(page); |
1741 |
+- /* Check if this page has been used once i.e 'put_page' |
1742 |
+- * called after packet transmission i.e internal ref_count |
1743 |
+- * and page's ref_count are equal i.e page can be recycled. |
1744 |
++ /* This page can be recycled if internal ref_count and page's |
1745 |
++ * ref_count are equal, indicating that the page has been used |
1746 |
++ * once for packet transmission. For non-XDP mode, internal |
1747 |
++ * ref_count is always '1'. |
1748 |
+ */ |
1749 |
+- if (rbdr->is_xdp && (ref_count == pgcache->ref_count)) |
1750 |
+- pgcache->ref_count--; |
1751 |
+- else |
1752 |
+- page = NULL; |
1753 |
+- |
1754 |
+- /* In non-XDP mode, page's ref_count needs to be '1' for it |
1755 |
+- * to be recycled. |
1756 |
+- */ |
1757 |
+- if (!rbdr->is_xdp && (ref_count != 1)) |
1758 |
++ if (rbdr->is_xdp) { |
1759 |
++ if (ref_count == pgcache->ref_count) |
1760 |
++ pgcache->ref_count--; |
1761 |
++ else |
1762 |
++ page = NULL; |
1763 |
++ } else if (ref_count != 1) { |
1764 |
+ page = NULL; |
1765 |
++ } |
1766 |
+ } |
1767 |
+ |
1768 |
+ if (!page) { |
1769 |
+@@ -365,11 +364,10 @@ static void nicvf_free_rbdr(struct nicvf *nic, struct rbdr *rbdr) |
1770 |
+ while (head < rbdr->pgcnt) { |
1771 |
+ pgcache = &rbdr->pgcache[head]; |
1772 |
+ if (pgcache->page && page_ref_count(pgcache->page) != 0) { |
1773 |
+- if (!rbdr->is_xdp) { |
1774 |
+- put_page(pgcache->page); |
1775 |
+- continue; |
1776 |
++ if (rbdr->is_xdp) { |
1777 |
++ page_ref_sub(pgcache->page, |
1778 |
++ pgcache->ref_count - 1); |
1779 |
+ } |
1780 |
+- page_ref_sub(pgcache->page, pgcache->ref_count - 1); |
1781 |
+ put_page(pgcache->page); |
1782 |
+ } |
1783 |
+ head++; |
1784 |
+diff --git a/drivers/net/ethernet/stmicro/stmmac/ring_mode.c b/drivers/net/ethernet/stmicro/stmmac/ring_mode.c |
1785 |
+index 1af7b078b94d..d4c3bf78d928 100644 |
1786 |
+--- a/drivers/net/ethernet/stmicro/stmmac/ring_mode.c |
1787 |
++++ b/drivers/net/ethernet/stmicro/stmmac/ring_mode.c |
1788 |
+@@ -114,10 +114,11 @@ static unsigned int stmmac_is_jumbo_frm(int len, int enh_desc) |
1789 |
+ |
1790 |
+ static void stmmac_refill_desc3(void *priv_ptr, struct dma_desc *p) |
1791 |
+ { |
1792 |
+- struct stmmac_priv *priv = (struct stmmac_priv *)priv_ptr; |
1793 |
++ struct stmmac_rx_queue *rx_q = priv_ptr; |
1794 |
++ struct stmmac_priv *priv = rx_q->priv_data; |
1795 |
+ |
1796 |
+ /* Fill DES3 in case of RING mode */ |
1797 |
+- if (priv->dma_buf_sz >= BUF_SIZE_8KiB) |
1798 |
++ if (priv->dma_buf_sz == BUF_SIZE_16KiB) |
1799 |
+ p->des3 = cpu_to_le32(le32_to_cpu(p->des2) + BUF_SIZE_8KiB); |
1800 |
+ } |
1801 |
+ |
1802 |
+diff --git a/drivers/net/ethernet/stmicro/stmmac/stmmac_main.c b/drivers/net/ethernet/stmicro/stmmac/stmmac_main.c |
1803 |
+index 0cc83e8417ef..4a9dbee6f054 100644 |
1804 |
+--- a/drivers/net/ethernet/stmicro/stmmac/stmmac_main.c |
1805 |
++++ b/drivers/net/ethernet/stmicro/stmmac/stmmac_main.c |
1806 |
+@@ -3787,6 +3787,20 @@ static int stmmac_ioctl(struct net_device *dev, struct ifreq *rq, int cmd) |
1807 |
+ return ret; |
1808 |
+ } |
1809 |
+ |
1810 |
++static int stmmac_set_mac_address(struct net_device *ndev, void *addr) |
1811 |
++{ |
1812 |
++ struct stmmac_priv *priv = netdev_priv(ndev); |
1813 |
++ int ret = 0; |
1814 |
++ |
1815 |
++ ret = eth_mac_addr(ndev, addr); |
1816 |
++ if (ret) |
1817 |
++ return ret; |
1818 |
++ |
1819 |
++ priv->hw->mac->set_umac_addr(priv->hw, ndev->dev_addr, 0); |
1820 |
++ |
1821 |
++ return ret; |
1822 |
++} |
1823 |
++ |
1824 |
+ #ifdef CONFIG_DEBUG_FS |
1825 |
+ static struct dentry *stmmac_fs_dir; |
1826 |
+ |
1827 |
+@@ -4014,7 +4028,7 @@ static const struct net_device_ops stmmac_netdev_ops = { |
1828 |
+ #ifdef CONFIG_NET_POLL_CONTROLLER |
1829 |
+ .ndo_poll_controller = stmmac_poll_controller, |
1830 |
+ #endif |
1831 |
+- .ndo_set_mac_address = eth_mac_addr, |
1832 |
++ .ndo_set_mac_address = stmmac_set_mac_address, |
1833 |
+ }; |
1834 |
+ |
1835 |
+ /** |
1836 |
+diff --git a/drivers/net/tun.c b/drivers/net/tun.c |
1837 |
+index 4227ee33ef19..3b13d9e4030a 100644 |
1838 |
+--- a/drivers/net/tun.c |
1839 |
++++ b/drivers/net/tun.c |
1840 |
+@@ -1403,9 +1403,6 @@ static ssize_t tun_get_user(struct tun_struct *tun, struct tun_file *tfile, |
1841 |
+ u32 rxhash; |
1842 |
+ int skb_xdp = 1; |
1843 |
+ |
1844 |
+- if (!(tun->dev->flags & IFF_UP)) |
1845 |
+- return -EIO; |
1846 |
+- |
1847 |
+ if (!(tun->flags & IFF_NO_PI)) { |
1848 |
+ if (len < sizeof(pi)) |
1849 |
+ return -EINVAL; |
1850 |
+@@ -1493,9 +1490,11 @@ static ssize_t tun_get_user(struct tun_struct *tun, struct tun_file *tfile, |
1851 |
+ err = skb_copy_datagram_from_iter(skb, 0, from, len); |
1852 |
+ |
1853 |
+ if (err) { |
1854 |
++ err = -EFAULT; |
1855 |
++drop: |
1856 |
+ this_cpu_inc(tun->pcpu_stats->rx_dropped); |
1857 |
+ kfree_skb(skb); |
1858 |
+- return -EFAULT; |
1859 |
++ return err; |
1860 |
+ } |
1861 |
+ } |
1862 |
+ |
1863 |
+@@ -1566,11 +1565,20 @@ static ssize_t tun_get_user(struct tun_struct *tun, struct tun_file *tfile, |
1864 |
+ } |
1865 |
+ |
1866 |
+ rxhash = __skb_get_hash_symmetric(skb); |
1867 |
++ |
1868 |
++ rcu_read_lock(); |
1869 |
++ if (unlikely(!(tun->dev->flags & IFF_UP))) { |
1870 |
++ err = -EIO; |
1871 |
++ rcu_read_unlock(); |
1872 |
++ goto drop; |
1873 |
++ } |
1874 |
++ |
1875 |
+ #ifndef CONFIG_4KSTACKS |
1876 |
+ tun_rx_batched(tun, tfile, skb, more); |
1877 |
+ #else |
1878 |
+ netif_rx_ni(skb); |
1879 |
+ #endif |
1880 |
++ rcu_read_unlock(); |
1881 |
+ |
1882 |
+ stats = get_cpu_ptr(tun->pcpu_stats); |
1883 |
+ u64_stats_update_begin(&stats->syncp); |
1884 |
+diff --git a/drivers/net/vxlan.c b/drivers/net/vxlan.c |
1885 |
+index df48f65c4f90..2fbaa279988e 100644 |
1886 |
+--- a/drivers/net/vxlan.c |
1887 |
++++ b/drivers/net/vxlan.c |
1888 |
+@@ -3793,10 +3793,8 @@ static void __net_exit vxlan_exit_net(struct net *net) |
1889 |
+ /* If vxlan->dev is in the same netns, it has already been added |
1890 |
+ * to the list by the previous loop. |
1891 |
+ */ |
1892 |
+- if (!net_eq(dev_net(vxlan->dev), net)) { |
1893 |
+- gro_cells_destroy(&vxlan->gro_cells); |
1894 |
++ if (!net_eq(dev_net(vxlan->dev), net)) |
1895 |
+ unregister_netdevice_queue(vxlan->dev, &list); |
1896 |
+- } |
1897 |
+ } |
1898 |
+ |
1899 |
+ unregister_netdevice_many(&list); |
1900 |
+diff --git a/drivers/phy/allwinner/phy-sun4i-usb.c b/drivers/phy/allwinner/phy-sun4i-usb.c |
1901 |
+index d1ccff527756..4d34dfb64998 100644 |
1902 |
+--- a/drivers/phy/allwinner/phy-sun4i-usb.c |
1903 |
++++ b/drivers/phy/allwinner/phy-sun4i-usb.c |
1904 |
+@@ -480,8 +480,11 @@ static int sun4i_usb_phy_set_mode(struct phy *_phy, enum phy_mode mode) |
1905 |
+ struct sun4i_usb_phy_data *data = to_sun4i_usb_phy_data(phy); |
1906 |
+ int new_mode; |
1907 |
+ |
1908 |
+- if (phy->index != 0) |
1909 |
++ if (phy->index != 0) { |
1910 |
++ if (mode == PHY_MODE_USB_HOST) |
1911 |
++ return 0; |
1912 |
+ return -EINVAL; |
1913 |
++ } |
1914 |
+ |
1915 |
+ switch (mode) { |
1916 |
+ case PHY_MODE_USB_HOST: |
1917 |
+diff --git a/drivers/s390/cio/vfio_ccw_drv.c b/drivers/s390/cio/vfio_ccw_drv.c |
1918 |
+index ae7a49ade414..d22759eb6640 100644 |
1919 |
+--- a/drivers/s390/cio/vfio_ccw_drv.c |
1920 |
++++ b/drivers/s390/cio/vfio_ccw_drv.c |
1921 |
+@@ -70,20 +70,24 @@ static void vfio_ccw_sch_io_todo(struct work_struct *work) |
1922 |
+ { |
1923 |
+ struct vfio_ccw_private *private; |
1924 |
+ struct irb *irb; |
1925 |
++ bool is_final; |
1926 |
+ |
1927 |
+ private = container_of(work, struct vfio_ccw_private, io_work); |
1928 |
+ irb = &private->irb; |
1929 |
+ |
1930 |
++ is_final = !(scsw_actl(&irb->scsw) & |
1931 |
++ (SCSW_ACTL_DEVACT | SCSW_ACTL_SCHACT)); |
1932 |
+ if (scsw_is_solicited(&irb->scsw)) { |
1933 |
+ cp_update_scsw(&private->cp, &irb->scsw); |
1934 |
+- cp_free(&private->cp); |
1935 |
++ if (is_final) |
1936 |
++ cp_free(&private->cp); |
1937 |
+ } |
1938 |
+ memcpy(private->io_region.irb_area, irb, sizeof(*irb)); |
1939 |
+ |
1940 |
+ if (private->io_trigger) |
1941 |
+ eventfd_signal(private->io_trigger, 1); |
1942 |
+ |
1943 |
+- if (private->mdev) |
1944 |
++ if (private->mdev && is_final) |
1945 |
+ private->state = VFIO_CCW_STATE_IDLE; |
1946 |
+ } |
1947 |
+ |
1948 |
+diff --git a/drivers/s390/scsi/zfcp_erp.c b/drivers/s390/scsi/zfcp_erp.c |
1949 |
+index 7aa243a6cdbf..6d5065f679ac 100644 |
1950 |
+--- a/drivers/s390/scsi/zfcp_erp.c |
1951 |
++++ b/drivers/s390/scsi/zfcp_erp.c |
1952 |
+@@ -652,6 +652,20 @@ static void zfcp_erp_strategy_memwait(struct zfcp_erp_action *erp_action) |
1953 |
+ add_timer(&erp_action->timer); |
1954 |
+ } |
1955 |
+ |
1956 |
++void zfcp_erp_port_forced_reopen_all(struct zfcp_adapter *adapter, |
1957 |
++ int clear, char *dbftag) |
1958 |
++{ |
1959 |
++ unsigned long flags; |
1960 |
++ struct zfcp_port *port; |
1961 |
++ |
1962 |
++ write_lock_irqsave(&adapter->erp_lock, flags); |
1963 |
++ read_lock(&adapter->port_list_lock); |
1964 |
++ list_for_each_entry(port, &adapter->port_list, list) |
1965 |
++ _zfcp_erp_port_forced_reopen(port, clear, dbftag); |
1966 |
++ read_unlock(&adapter->port_list_lock); |
1967 |
++ write_unlock_irqrestore(&adapter->erp_lock, flags); |
1968 |
++} |
1969 |
++ |
1970 |
+ static void _zfcp_erp_port_reopen_all(struct zfcp_adapter *adapter, |
1971 |
+ int clear, char *id) |
1972 |
+ { |
1973 |
+@@ -1306,6 +1320,9 @@ static void zfcp_erp_try_rport_unblock(struct zfcp_port *port) |
1974 |
+ struct zfcp_scsi_dev *zsdev = sdev_to_zfcp(sdev); |
1975 |
+ int lun_status; |
1976 |
+ |
1977 |
++ if (sdev->sdev_state == SDEV_DEL || |
1978 |
++ sdev->sdev_state == SDEV_CANCEL) |
1979 |
++ continue; |
1980 |
+ if (zsdev->port != port) |
1981 |
+ continue; |
1982 |
+ /* LUN under port of interest */ |
1983 |
+diff --git a/drivers/s390/scsi/zfcp_ext.h b/drivers/s390/scsi/zfcp_ext.h |
1984 |
+index c1092a11e728..1b2e2541b1de 100644 |
1985 |
+--- a/drivers/s390/scsi/zfcp_ext.h |
1986 |
++++ b/drivers/s390/scsi/zfcp_ext.h |
1987 |
+@@ -68,6 +68,8 @@ extern void zfcp_erp_clear_port_status(struct zfcp_port *, u32); |
1988 |
+ extern int zfcp_erp_port_reopen(struct zfcp_port *, int, char *); |
1989 |
+ extern void zfcp_erp_port_shutdown(struct zfcp_port *, int, char *); |
1990 |
+ extern void zfcp_erp_port_forced_reopen(struct zfcp_port *, int, char *); |
1991 |
++extern void zfcp_erp_port_forced_reopen_all(struct zfcp_adapter *adapter, |
1992 |
++ int clear, char *dbftag); |
1993 |
+ extern void zfcp_erp_set_lun_status(struct scsi_device *, u32); |
1994 |
+ extern void zfcp_erp_clear_lun_status(struct scsi_device *, u32); |
1995 |
+ extern void zfcp_erp_lun_reopen(struct scsi_device *, int, char *); |
1996 |
+diff --git a/drivers/s390/scsi/zfcp_scsi.c b/drivers/s390/scsi/zfcp_scsi.c |
1997 |
+index 0b6f51424745..6f6bc73a3a10 100644 |
1998 |
+--- a/drivers/s390/scsi/zfcp_scsi.c |
1999 |
++++ b/drivers/s390/scsi/zfcp_scsi.c |
2000 |
+@@ -327,6 +327,10 @@ static int zfcp_scsi_eh_host_reset_handler(struct scsi_cmnd *scpnt) |
2001 |
+ struct zfcp_adapter *adapter = zfcp_sdev->port->adapter; |
2002 |
+ int ret = SUCCESS, fc_ret; |
2003 |
+ |
2004 |
++ if (!(adapter->connection_features & FSF_FEATURE_NPIV_MODE)) { |
2005 |
++ zfcp_erp_port_forced_reopen_all(adapter, 0, "schrh_p"); |
2006 |
++ zfcp_erp_wait(adapter); |
2007 |
++ } |
2008 |
+ zfcp_erp_adapter_reopen(adapter, 0, "schrh_1"); |
2009 |
+ zfcp_erp_wait(adapter); |
2010 |
+ fc_ret = fc_block_scsi_eh(scpnt); |
2011 |
+diff --git a/drivers/scsi/sd.c b/drivers/scsi/sd.c |
2012 |
+index d0cc8fb40f63..e0c0fea227c1 100644 |
2013 |
+--- a/drivers/scsi/sd.c |
2014 |
++++ b/drivers/scsi/sd.c |
2015 |
+@@ -1420,11 +1420,6 @@ static void sd_release(struct gendisk *disk, fmode_t mode) |
2016 |
+ scsi_set_medium_removal(sdev, SCSI_REMOVAL_ALLOW); |
2017 |
+ } |
2018 |
+ |
2019 |
+- /* |
2020 |
+- * XXX and what if there are packets in flight and this close() |
2021 |
+- * XXX is followed by a "rmmod sd_mod"? |
2022 |
+- */ |
2023 |
+- |
2024 |
+ scsi_disk_put(sdkp); |
2025 |
+ } |
2026 |
+ |
2027 |
+@@ -3089,6 +3084,9 @@ static bool sd_validate_opt_xfer_size(struct scsi_disk *sdkp, |
2028 |
+ unsigned int opt_xfer_bytes = |
2029 |
+ logical_to_bytes(sdp, sdkp->opt_xfer_blocks); |
2030 |
+ |
2031 |
++ if (sdkp->opt_xfer_blocks == 0) |
2032 |
++ return false; |
2033 |
++ |
2034 |
+ if (sdkp->opt_xfer_blocks > dev_max) { |
2035 |
+ sd_first_printk(KERN_WARNING, sdkp, |
2036 |
+ "Optimal transfer size %u logical blocks " \ |
2037 |
+@@ -3521,11 +3519,23 @@ static void scsi_disk_release(struct device *dev) |
2038 |
+ { |
2039 |
+ struct scsi_disk *sdkp = to_scsi_disk(dev); |
2040 |
+ struct gendisk *disk = sdkp->disk; |
2041 |
+- |
2042 |
++ struct request_queue *q = disk->queue; |
2043 |
++ |
2044 |
+ spin_lock(&sd_index_lock); |
2045 |
+ ida_remove(&sd_index_ida, sdkp->index); |
2046 |
+ spin_unlock(&sd_index_lock); |
2047 |
+ |
2048 |
++ /* |
2049 |
++ * Wait until all requests that are in progress have completed. |
2050 |
++ * This is necessary to avoid that e.g. scsi_end_request() crashes |
2051 |
++ * due to clearing the disk->private_data pointer. Wait from inside |
2052 |
++ * scsi_disk_release() instead of from sd_release() to avoid that |
2053 |
++ * freezing and unfreezing the request queue affects user space I/O |
2054 |
++ * in case multiple processes open a /dev/sd... node concurrently. |
2055 |
++ */ |
2056 |
++ blk_mq_freeze_queue(q); |
2057 |
++ blk_mq_unfreeze_queue(q); |
2058 |
++ |
2059 |
+ disk->private_data = NULL; |
2060 |
+ put_disk(disk); |
2061 |
+ put_device(&sdkp->device->sdev_gendev); |
2062 |
+diff --git a/drivers/staging/comedi/comedidev.h b/drivers/staging/comedi/comedidev.h |
2063 |
+index 1bb9986f865e..33f249af0063 100644 |
2064 |
+--- a/drivers/staging/comedi/comedidev.h |
2065 |
++++ b/drivers/staging/comedi/comedidev.h |
2066 |
+@@ -992,6 +992,8 @@ int comedi_dio_insn_config(struct comedi_device *dev, |
2067 |
+ unsigned int mask); |
2068 |
+ unsigned int comedi_dio_update_state(struct comedi_subdevice *s, |
2069 |
+ unsigned int *data); |
2070 |
++unsigned int comedi_bytes_per_scan_cmd(struct comedi_subdevice *s, |
2071 |
++ struct comedi_cmd *cmd); |
2072 |
+ unsigned int comedi_bytes_per_scan(struct comedi_subdevice *s); |
2073 |
+ unsigned int comedi_nscans_left(struct comedi_subdevice *s, |
2074 |
+ unsigned int nscans); |
2075 |
+diff --git a/drivers/staging/comedi/drivers.c b/drivers/staging/comedi/drivers.c |
2076 |
+index c11c22bd6d13..2e532219f08b 100644 |
2077 |
+--- a/drivers/staging/comedi/drivers.c |
2078 |
++++ b/drivers/staging/comedi/drivers.c |
2079 |
+@@ -390,11 +390,13 @@ unsigned int comedi_dio_update_state(struct comedi_subdevice *s, |
2080 |
+ EXPORT_SYMBOL_GPL(comedi_dio_update_state); |
2081 |
+ |
2082 |
+ /** |
2083 |
+- * comedi_bytes_per_scan() - Get length of asynchronous command "scan" in bytes |
2084 |
++ * comedi_bytes_per_scan_cmd() - Get length of asynchronous command "scan" in |
2085 |
++ * bytes |
2086 |
+ * @s: COMEDI subdevice. |
2087 |
++ * @cmd: COMEDI command. |
2088 |
+ * |
2089 |
+ * Determines the overall scan length according to the subdevice type and the |
2090 |
+- * number of channels in the scan. |
2091 |
++ * number of channels in the scan for the specified command. |
2092 |
+ * |
2093 |
+ * For digital input, output or input/output subdevices, samples for |
2094 |
+ * multiple channels are assumed to be packed into one or more unsigned |
2095 |
+@@ -404,9 +406,9 @@ EXPORT_SYMBOL_GPL(comedi_dio_update_state); |
2096 |
+ * |
2097 |
+ * Returns the overall scan length in bytes. |
2098 |
+ */ |
2099 |
+-unsigned int comedi_bytes_per_scan(struct comedi_subdevice *s) |
2100 |
++unsigned int comedi_bytes_per_scan_cmd(struct comedi_subdevice *s, |
2101 |
++ struct comedi_cmd *cmd) |
2102 |
+ { |
2103 |
+- struct comedi_cmd *cmd = &s->async->cmd; |
2104 |
+ unsigned int num_samples; |
2105 |
+ unsigned int bits_per_sample; |
2106 |
+ |
2107 |
+@@ -423,6 +425,29 @@ unsigned int comedi_bytes_per_scan(struct comedi_subdevice *s) |
2108 |
+ } |
2109 |
+ return comedi_samples_to_bytes(s, num_samples); |
2110 |
+ } |
2111 |
++EXPORT_SYMBOL_GPL(comedi_bytes_per_scan_cmd); |
2112 |
++ |
2113 |
++/** |
2114 |
++ * comedi_bytes_per_scan() - Get length of asynchronous command "scan" in bytes |
2115 |
++ * @s: COMEDI subdevice. |
2116 |
++ * |
2117 |
++ * Determines the overall scan length according to the subdevice type and the |
2118 |
++ * number of channels in the scan for the current command. |
2119 |
++ * |
2120 |
++ * For digital input, output or input/output subdevices, samples for |
2121 |
++ * multiple channels are assumed to be packed into one or more unsigned |
2122 |
++ * short or unsigned int values according to the subdevice's %SDF_LSAMPL |
2123 |
++ * flag. For other types of subdevice, samples are assumed to occupy a |
2124 |
++ * whole unsigned short or unsigned int according to the %SDF_LSAMPL flag. |
2125 |
++ * |
2126 |
++ * Returns the overall scan length in bytes. |
2127 |
++ */ |
2128 |
++unsigned int comedi_bytes_per_scan(struct comedi_subdevice *s) |
2129 |
++{ |
2130 |
++ struct comedi_cmd *cmd = &s->async->cmd; |
2131 |
++ |
2132 |
++ return comedi_bytes_per_scan_cmd(s, cmd); |
2133 |
++} |
2134 |
+ EXPORT_SYMBOL_GPL(comedi_bytes_per_scan); |
2135 |
+ |
2136 |
+ static unsigned int __comedi_nscans_left(struct comedi_subdevice *s, |
2137 |
+diff --git a/drivers/staging/comedi/drivers/ni_mio_common.c b/drivers/staging/comedi/drivers/ni_mio_common.c |
2138 |
+index 158f3e83efb6..36361bdf934a 100644 |
2139 |
+--- a/drivers/staging/comedi/drivers/ni_mio_common.c |
2140 |
++++ b/drivers/staging/comedi/drivers/ni_mio_common.c |
2141 |
+@@ -3523,6 +3523,7 @@ static int ni_cdio_check_chanlist(struct comedi_device *dev, |
2142 |
+ static int ni_cdio_cmdtest(struct comedi_device *dev, |
2143 |
+ struct comedi_subdevice *s, struct comedi_cmd *cmd) |
2144 |
+ { |
2145 |
++ unsigned int bytes_per_scan; |
2146 |
+ int err = 0; |
2147 |
+ int tmp; |
2148 |
+ |
2149 |
+@@ -3552,9 +3553,12 @@ static int ni_cdio_cmdtest(struct comedi_device *dev, |
2150 |
+ err |= comedi_check_trigger_arg_is(&cmd->convert_arg, 0); |
2151 |
+ err |= comedi_check_trigger_arg_is(&cmd->scan_end_arg, |
2152 |
+ cmd->chanlist_len); |
2153 |
+- err |= comedi_check_trigger_arg_max(&cmd->stop_arg, |
2154 |
+- s->async->prealloc_bufsz / |
2155 |
+- comedi_bytes_per_scan(s)); |
2156 |
++ bytes_per_scan = comedi_bytes_per_scan_cmd(s, cmd); |
2157 |
++ if (bytes_per_scan) { |
2158 |
++ err |= comedi_check_trigger_arg_max(&cmd->stop_arg, |
2159 |
++ s->async->prealloc_bufsz / |
2160 |
++ bytes_per_scan); |
2161 |
++ } |
2162 |
+ |
2163 |
+ if (err) |
2164 |
+ return 3; |
2165 |
+diff --git a/drivers/staging/vt6655/device_main.c b/drivers/staging/vt6655/device_main.c |
2166 |
+index 1123b4f1e1d6..84a915199e64 100644 |
2167 |
+--- a/drivers/staging/vt6655/device_main.c |
2168 |
++++ b/drivers/staging/vt6655/device_main.c |
2169 |
+@@ -973,8 +973,6 @@ static void vnt_interrupt_process(struct vnt_private *priv) |
2170 |
+ return; |
2171 |
+ } |
2172 |
+ |
2173 |
+- MACvIntDisable(priv->PortOffset); |
2174 |
+- |
2175 |
+ spin_lock_irqsave(&priv->lock, flags); |
2176 |
+ |
2177 |
+ /* Read low level stats */ |
2178 |
+@@ -1062,8 +1060,6 @@ static void vnt_interrupt_process(struct vnt_private *priv) |
2179 |
+ } |
2180 |
+ |
2181 |
+ spin_unlock_irqrestore(&priv->lock, flags); |
2182 |
+- |
2183 |
+- MACvIntEnable(priv->PortOffset, IMR_MASK_VALUE); |
2184 |
+ } |
2185 |
+ |
2186 |
+ static void vnt_interrupt_work(struct work_struct *work) |
2187 |
+@@ -1073,14 +1069,17 @@ static void vnt_interrupt_work(struct work_struct *work) |
2188 |
+ |
2189 |
+ if (priv->vif) |
2190 |
+ vnt_interrupt_process(priv); |
2191 |
++ |
2192 |
++ MACvIntEnable(priv->PortOffset, IMR_MASK_VALUE); |
2193 |
+ } |
2194 |
+ |
2195 |
+ static irqreturn_t vnt_interrupt(int irq, void *arg) |
2196 |
+ { |
2197 |
+ struct vnt_private *priv = arg; |
2198 |
+ |
2199 |
+- if (priv->vif) |
2200 |
+- schedule_work(&priv->interrupt_work); |
2201 |
++ schedule_work(&priv->interrupt_work); |
2202 |
++ |
2203 |
++ MACvIntDisable(priv->PortOffset); |
2204 |
+ |
2205 |
+ return IRQ_HANDLED; |
2206 |
+ } |
2207 |
+diff --git a/drivers/tty/serial/atmel_serial.c b/drivers/tty/serial/atmel_serial.c |
2208 |
+index 2286e9d73115..9f1cef59fa28 100644 |
2209 |
+--- a/drivers/tty/serial/atmel_serial.c |
2210 |
++++ b/drivers/tty/serial/atmel_serial.c |
2211 |
+@@ -1163,6 +1163,10 @@ static int atmel_prepare_rx_dma(struct uart_port *port) |
2212 |
+ sg_dma_len(&atmel_port->sg_rx)/2, |
2213 |
+ DMA_DEV_TO_MEM, |
2214 |
+ DMA_PREP_INTERRUPT); |
2215 |
++ if (!desc) { |
2216 |
++ dev_err(port->dev, "Preparing DMA cyclic failed\n"); |
2217 |
++ goto chan_err; |
2218 |
++ } |
2219 |
+ desc->callback = atmel_complete_rx_dma; |
2220 |
+ desc->callback_param = port; |
2221 |
+ atmel_port->desc_rx = desc; |
2222 |
+diff --git a/drivers/tty/serial/kgdboc.c b/drivers/tty/serial/kgdboc.c |
2223 |
+index f2b0d8cee8ef..0314e78e31ff 100644 |
2224 |
+--- a/drivers/tty/serial/kgdboc.c |
2225 |
++++ b/drivers/tty/serial/kgdboc.c |
2226 |
+@@ -148,8 +148,10 @@ static int configure_kgdboc(void) |
2227 |
+ char *cptr = config; |
2228 |
+ struct console *cons; |
2229 |
+ |
2230 |
+- if (!strlen(config) || isspace(config[0])) |
2231 |
++ if (!strlen(config) || isspace(config[0])) { |
2232 |
++ err = 0; |
2233 |
+ goto noconfig; |
2234 |
++ } |
2235 |
+ |
2236 |
+ kgdboc_io_ops.is_console = 0; |
2237 |
+ kgdb_tty_driver = NULL; |
2238 |
+diff --git a/drivers/tty/serial/max310x.c b/drivers/tty/serial/max310x.c |
2239 |
+index 9dfedbe6c071..54660002271a 100644 |
2240 |
+--- a/drivers/tty/serial/max310x.c |
2241 |
++++ b/drivers/tty/serial/max310x.c |
2242 |
+@@ -1323,6 +1323,8 @@ static int max310x_spi_probe(struct spi_device *spi) |
2243 |
+ if (spi->dev.of_node) { |
2244 |
+ const struct of_device_id *of_id = |
2245 |
+ of_match_device(max310x_dt_ids, &spi->dev); |
2246 |
++ if (!of_id) |
2247 |
++ return -ENODEV; |
2248 |
+ |
2249 |
+ devtype = (struct max310x_devtype *)of_id->data; |
2250 |
+ } else { |
2251 |
+diff --git a/drivers/tty/serial/sh-sci.c b/drivers/tty/serial/sh-sci.c |
2252 |
+index 37dba940d898..d5f933ec153c 100644 |
2253 |
+--- a/drivers/tty/serial/sh-sci.c |
2254 |
++++ b/drivers/tty/serial/sh-sci.c |
2255 |
+@@ -806,19 +806,9 @@ static void sci_transmit_chars(struct uart_port *port) |
2256 |
+ |
2257 |
+ if (uart_circ_chars_pending(xmit) < WAKEUP_CHARS) |
2258 |
+ uart_write_wakeup(port); |
2259 |
+- if (uart_circ_empty(xmit)) { |
2260 |
++ if (uart_circ_empty(xmit)) |
2261 |
+ sci_stop_tx(port); |
2262 |
+- } else { |
2263 |
+- ctrl = serial_port_in(port, SCSCR); |
2264 |
+- |
2265 |
+- if (port->type != PORT_SCI) { |
2266 |
+- serial_port_in(port, SCxSR); /* Dummy read */ |
2267 |
+- sci_clear_SCxSR(port, SCxSR_TDxE_CLEAR(port)); |
2268 |
+- } |
2269 |
+ |
2270 |
+- ctrl |= SCSCR_TIE; |
2271 |
+- serial_port_out(port, SCSCR, ctrl); |
2272 |
+- } |
2273 |
+ } |
2274 |
+ |
2275 |
+ /* On SH3, SCIF may read end-of-break as a space->mark char */ |
2276 |
+diff --git a/drivers/usb/class/cdc-acm.c b/drivers/usb/class/cdc-acm.c |
2277 |
+index 8ab0195f8d32..f736c8895089 100644 |
2278 |
+--- a/drivers/usb/class/cdc-acm.c |
2279 |
++++ b/drivers/usb/class/cdc-acm.c |
2280 |
+@@ -570,10 +570,8 @@ static void acm_softint(struct work_struct *work) |
2281 |
+ clear_bit(EVENT_RX_STALL, &acm->flags); |
2282 |
+ } |
2283 |
+ |
2284 |
+- if (test_bit(EVENT_TTY_WAKEUP, &acm->flags)) { |
2285 |
++ if (test_and_clear_bit(EVENT_TTY_WAKEUP, &acm->flags)) |
2286 |
+ tty_port_tty_wakeup(&acm->port); |
2287 |
+- clear_bit(EVENT_TTY_WAKEUP, &acm->flags); |
2288 |
+- } |
2289 |
+ } |
2290 |
+ |
2291 |
+ /* |
2292 |
+diff --git a/drivers/usb/common/common.c b/drivers/usb/common/common.c |
2293 |
+index 552ff7ac5a6b..c1ab14145f62 100644 |
2294 |
+--- a/drivers/usb/common/common.c |
2295 |
++++ b/drivers/usb/common/common.c |
2296 |
+@@ -148,6 +148,8 @@ enum usb_dr_mode of_usb_get_dr_mode_by_phy(struct device_node *np, int arg0) |
2297 |
+ |
2298 |
+ do { |
2299 |
+ controller = of_find_node_with_property(controller, "phys"); |
2300 |
++ if (!of_device_is_available(controller)) |
2301 |
++ continue; |
2302 |
+ index = 0; |
2303 |
+ do { |
2304 |
+ if (arg0 == -1) { |
2305 |
+diff --git a/drivers/usb/core/config.c b/drivers/usb/core/config.c |
2306 |
+index 1a6ccdd5a5fc..bd749e78df59 100644 |
2307 |
+--- a/drivers/usb/core/config.c |
2308 |
++++ b/drivers/usb/core/config.c |
2309 |
+@@ -768,21 +768,18 @@ void usb_destroy_configuration(struct usb_device *dev) |
2310 |
+ return; |
2311 |
+ |
2312 |
+ if (dev->rawdescriptors) { |
2313 |
+- for (i = 0; i < dev->descriptor.bNumConfigurations && |
2314 |
+- i < USB_MAXCONFIG; i++) |
2315 |
++ for (i = 0; i < dev->descriptor.bNumConfigurations; i++) |
2316 |
+ kfree(dev->rawdescriptors[i]); |
2317 |
+ |
2318 |
+ kfree(dev->rawdescriptors); |
2319 |
+ dev->rawdescriptors = NULL; |
2320 |
+ } |
2321 |
+ |
2322 |
+- for (c = 0; c < dev->descriptor.bNumConfigurations && |
2323 |
+- c < USB_MAXCONFIG; c++) { |
2324 |
++ for (c = 0; c < dev->descriptor.bNumConfigurations; c++) { |
2325 |
+ struct usb_host_config *cf = &dev->config[c]; |
2326 |
+ |
2327 |
+ kfree(cf->string); |
2328 |
+- for (i = 0; i < cf->desc.bNumInterfaces && |
2329 |
+- i < USB_MAXINTERFACES; i++) { |
2330 |
++ for (i = 0; i < cf->desc.bNumInterfaces; i++) { |
2331 |
+ if (cf->intf_cache[i]) |
2332 |
+ kref_put(&cf->intf_cache[i]->ref, |
2333 |
+ usb_release_interface_cache); |
2334 |
+diff --git a/drivers/usb/gadget/function/f_hid.c b/drivers/usb/gadget/function/f_hid.c |
2335 |
+index d8e359ef6eb1..63f6e344d5b0 100644 |
2336 |
+--- a/drivers/usb/gadget/function/f_hid.c |
2337 |
++++ b/drivers/usb/gadget/function/f_hid.c |
2338 |
+@@ -395,20 +395,20 @@ try_again: |
2339 |
+ req->complete = f_hidg_req_complete; |
2340 |
+ req->context = hidg; |
2341 |
+ |
2342 |
++ spin_unlock_irqrestore(&hidg->write_spinlock, flags); |
2343 |
++ |
2344 |
+ status = usb_ep_queue(hidg->in_ep, req, GFP_ATOMIC); |
2345 |
+ if (status < 0) { |
2346 |
+ ERROR(hidg->func.config->cdev, |
2347 |
+ "usb_ep_queue error on int endpoint %zd\n", status); |
2348 |
+- goto release_write_pending_unlocked; |
2349 |
++ goto release_write_pending; |
2350 |
+ } else { |
2351 |
+ status = count; |
2352 |
+ } |
2353 |
+- spin_unlock_irqrestore(&hidg->write_spinlock, flags); |
2354 |
+ |
2355 |
+ return status; |
2356 |
+ release_write_pending: |
2357 |
+ spin_lock_irqsave(&hidg->write_spinlock, flags); |
2358 |
+-release_write_pending_unlocked: |
2359 |
+ hidg->write_pending = 0; |
2360 |
+ spin_unlock_irqrestore(&hidg->write_spinlock, flags); |
2361 |
+ |
2362 |
+diff --git a/drivers/usb/host/xhci-rcar.c b/drivers/usb/host/xhci-rcar.c |
2363 |
+index 97f23cc31f4c..425c2edfd6ea 100644 |
2364 |
+--- a/drivers/usb/host/xhci-rcar.c |
2365 |
++++ b/drivers/usb/host/xhci-rcar.c |
2366 |
+@@ -236,6 +236,7 @@ int xhci_rcar_init_quirk(struct usb_hcd *hcd) |
2367 |
+ xhci_rcar_is_gen3(hcd->self.controller)) |
2368 |
+ xhci->quirks |= XHCI_NO_64BIT_SUPPORT; |
2369 |
+ |
2370 |
++ xhci->quirks |= XHCI_TRUST_TX_LENGTH; |
2371 |
+ return xhci_rcar_download_firmware(hcd); |
2372 |
+ } |
2373 |
+ |
2374 |
+diff --git a/drivers/usb/host/xhci-ring.c b/drivers/usb/host/xhci-ring.c |
2375 |
+index aa230706b875..9a7e77a09080 100644 |
2376 |
+--- a/drivers/usb/host/xhci-ring.c |
2377 |
++++ b/drivers/usb/host/xhci-ring.c |
2378 |
+@@ -1715,10 +1715,13 @@ static void handle_port_status(struct xhci_hcd *xhci, |
2379 |
+ } |
2380 |
+ } |
2381 |
+ |
2382 |
+- if ((portsc & PORT_PLC) && (portsc & PORT_PLS_MASK) == XDEV_U0 && |
2383 |
+- DEV_SUPERSPEED_ANY(portsc)) { |
2384 |
++ if ((portsc & PORT_PLC) && |
2385 |
++ DEV_SUPERSPEED_ANY(portsc) && |
2386 |
++ ((portsc & PORT_PLS_MASK) == XDEV_U0 || |
2387 |
++ (portsc & PORT_PLS_MASK) == XDEV_U1 || |
2388 |
++ (portsc & PORT_PLS_MASK) == XDEV_U2)) { |
2389 |
+ xhci_dbg(xhci, "resume SS port %d finished\n", port_id); |
2390 |
+- /* We've just brought the device into U0 through either the |
2391 |
++ /* We've just brought the device into U0/1/2 through either the |
2392 |
+ * Resume state after a device remote wakeup, or through the |
2393 |
+ * U3Exit state after a host-initiated resume. If it's a device |
2394 |
+ * initiated remote wake, don't pass up the link state change, |
2395 |
+diff --git a/drivers/usb/mtu3/Kconfig b/drivers/usb/mtu3/Kconfig |
2396 |
+index 25cd61947bee..a213ce94f6eb 100644 |
2397 |
+--- a/drivers/usb/mtu3/Kconfig |
2398 |
++++ b/drivers/usb/mtu3/Kconfig |
2399 |
+@@ -4,6 +4,7 @@ config USB_MTU3 |
2400 |
+ tristate "MediaTek USB3 Dual Role controller" |
2401 |
+ depends on EXTCON && (USB || USB_GADGET) && HAS_DMA |
2402 |
+ depends on ARCH_MEDIATEK || COMPILE_TEST |
2403 |
++ depends on EXTCON || !EXTCON |
2404 |
+ select USB_XHCI_MTK if USB_SUPPORT && USB_XHCI_HCD |
2405 |
+ help |
2406 |
+ Say Y or M here if your system runs on MediaTek SoCs with |
2407 |
+diff --git a/drivers/usb/serial/cp210x.c b/drivers/usb/serial/cp210x.c |
2408 |
+index d8e6790ccffe..98e466c3cfca 100644 |
2409 |
+--- a/drivers/usb/serial/cp210x.c |
2410 |
++++ b/drivers/usb/serial/cp210x.c |
2411 |
+@@ -83,6 +83,7 @@ static const struct usb_device_id id_table[] = { |
2412 |
+ { USB_DEVICE(0x10C4, 0x804E) }, /* Software Bisque Paramount ME build-in converter */ |
2413 |
+ { USB_DEVICE(0x10C4, 0x8053) }, /* Enfora EDG1228 */ |
2414 |
+ { USB_DEVICE(0x10C4, 0x8054) }, /* Enfora GSM2228 */ |
2415 |
++ { USB_DEVICE(0x10C4, 0x8056) }, /* Lorenz Messtechnik devices */ |
2416 |
+ { USB_DEVICE(0x10C4, 0x8066) }, /* Argussoft In-System Programmer */ |
2417 |
+ { USB_DEVICE(0x10C4, 0x806F) }, /* IMS USB to RS422 Converter Cable */ |
2418 |
+ { USB_DEVICE(0x10C4, 0x807A) }, /* Crumb128 board */ |
2419 |
+diff --git a/drivers/usb/serial/ftdi_sio.c b/drivers/usb/serial/ftdi_sio.c |
2420 |
+index d45a2c352c98..e76395d7f17d 100644 |
2421 |
+--- a/drivers/usb/serial/ftdi_sio.c |
2422 |
++++ b/drivers/usb/serial/ftdi_sio.c |
2423 |
+@@ -604,6 +604,8 @@ static const struct usb_device_id id_table_combined[] = { |
2424 |
+ .driver_info = (kernel_ulong_t)&ftdi_jtag_quirk }, |
2425 |
+ { USB_DEVICE(FTDI_VID, FTDI_NT_ORIONLXM_PID), |
2426 |
+ .driver_info = (kernel_ulong_t)&ftdi_jtag_quirk }, |
2427 |
++ { USB_DEVICE(FTDI_VID, FTDI_NT_ORIONLX_PLUS_PID) }, |
2428 |
++ { USB_DEVICE(FTDI_VID, FTDI_NT_ORION_IO_PID) }, |
2429 |
+ { USB_DEVICE(FTDI_VID, FTDI_SYNAPSE_SS200_PID) }, |
2430 |
+ { USB_DEVICE(FTDI_VID, FTDI_CUSTOMWARE_MINIPLEX_PID) }, |
2431 |
+ { USB_DEVICE(FTDI_VID, FTDI_CUSTOMWARE_MINIPLEX2_PID) }, |
2432 |
+diff --git a/drivers/usb/serial/ftdi_sio_ids.h b/drivers/usb/serial/ftdi_sio_ids.h |
2433 |
+index b863bedb55a1..5755f0df0025 100644 |
2434 |
+--- a/drivers/usb/serial/ftdi_sio_ids.h |
2435 |
++++ b/drivers/usb/serial/ftdi_sio_ids.h |
2436 |
+@@ -567,7 +567,9 @@ |
2437 |
+ /* |
2438 |
+ * NovaTech product ids (FTDI_VID) |
2439 |
+ */ |
2440 |
+-#define FTDI_NT_ORIONLXM_PID 0x7c90 /* OrionLXm Substation Automation Platform */ |
2441 |
++#define FTDI_NT_ORIONLXM_PID 0x7c90 /* OrionLXm Substation Automation Platform */ |
2442 |
++#define FTDI_NT_ORIONLX_PLUS_PID 0x7c91 /* OrionLX+ Substation Automation Platform */ |
2443 |
++#define FTDI_NT_ORION_IO_PID 0x7c92 /* Orion I/O */ |
2444 |
+ |
2445 |
+ /* |
2446 |
+ * Synapse Wireless product ids (FTDI_VID) |
2447 |
+diff --git a/drivers/usb/serial/mos7720.c b/drivers/usb/serial/mos7720.c |
2448 |
+index a453965f9e9a..393a91ab56ed 100644 |
2449 |
+--- a/drivers/usb/serial/mos7720.c |
2450 |
++++ b/drivers/usb/serial/mos7720.c |
2451 |
+@@ -368,8 +368,6 @@ static int write_parport_reg_nonblock(struct mos7715_parport *mos_parport, |
2452 |
+ if (!urbtrack) |
2453 |
+ return -ENOMEM; |
2454 |
+ |
2455 |
+- kref_get(&mos_parport->ref_count); |
2456 |
+- urbtrack->mos_parport = mos_parport; |
2457 |
+ urbtrack->urb = usb_alloc_urb(0, GFP_ATOMIC); |
2458 |
+ if (!urbtrack->urb) { |
2459 |
+ kfree(urbtrack); |
2460 |
+@@ -390,6 +388,8 @@ static int write_parport_reg_nonblock(struct mos7715_parport *mos_parport, |
2461 |
+ usb_sndctrlpipe(usbdev, 0), |
2462 |
+ (unsigned char *)urbtrack->setup, |
2463 |
+ NULL, 0, async_complete, urbtrack); |
2464 |
++ kref_get(&mos_parport->ref_count); |
2465 |
++ urbtrack->mos_parport = mos_parport; |
2466 |
+ kref_init(&urbtrack->ref_count); |
2467 |
+ INIT_LIST_HEAD(&urbtrack->urblist_entry); |
2468 |
+ |
2469 |
+diff --git a/drivers/usb/serial/option.c b/drivers/usb/serial/option.c |
2470 |
+index bf72245f1cea..3311f569aa17 100644 |
2471 |
+--- a/drivers/usb/serial/option.c |
2472 |
++++ b/drivers/usb/serial/option.c |
2473 |
+@@ -249,6 +249,7 @@ static void option_instat_callback(struct urb *urb); |
2474 |
+ #define QUECTEL_PRODUCT_EC25 0x0125 |
2475 |
+ #define QUECTEL_PRODUCT_BG96 0x0296 |
2476 |
+ #define QUECTEL_PRODUCT_EP06 0x0306 |
2477 |
++#define QUECTEL_PRODUCT_EM12 0x0512 |
2478 |
+ |
2479 |
+ #define CMOTECH_VENDOR_ID 0x16d8 |
2480 |
+ #define CMOTECH_PRODUCT_6001 0x6001 |
2481 |
+@@ -1069,7 +1070,8 @@ static const struct usb_device_id option_ids[] = { |
2482 |
+ .driver_info = RSVD(3) }, |
2483 |
+ { USB_DEVICE(QUALCOMM_VENDOR_ID, 0x6613)}, /* Onda H600/ZTE MF330 */ |
2484 |
+ { USB_DEVICE(QUALCOMM_VENDOR_ID, 0x0023)}, /* ONYX 3G device */ |
2485 |
+- { USB_DEVICE(QUALCOMM_VENDOR_ID, 0x9000)}, /* SIMCom SIM5218 */ |
2486 |
++ { USB_DEVICE(QUALCOMM_VENDOR_ID, 0x9000), /* SIMCom SIM5218 */ |
2487 |
++ .driver_info = NCTRL(0) | NCTRL(1) | NCTRL(2) | NCTRL(3) | RSVD(4) }, |
2488 |
+ /* Quectel products using Qualcomm vendor ID */ |
2489 |
+ { USB_DEVICE(QUALCOMM_VENDOR_ID, QUECTEL_PRODUCT_UC15)}, |
2490 |
+ { USB_DEVICE(QUALCOMM_VENDOR_ID, QUECTEL_PRODUCT_UC20), |
2491 |
+@@ -1090,6 +1092,9 @@ static const struct usb_device_id option_ids[] = { |
2492 |
+ { USB_DEVICE_AND_INTERFACE_INFO(QUECTEL_VENDOR_ID, QUECTEL_PRODUCT_EP06, 0xff, 0xff, 0xff), |
2493 |
+ .driver_info = RSVD(1) | RSVD(2) | RSVD(3) | RSVD(4) | NUMEP2 }, |
2494 |
+ { USB_DEVICE_AND_INTERFACE_INFO(QUECTEL_VENDOR_ID, QUECTEL_PRODUCT_EP06, 0xff, 0, 0) }, |
2495 |
++ { USB_DEVICE_AND_INTERFACE_INFO(QUECTEL_VENDOR_ID, QUECTEL_PRODUCT_EM12, 0xff, 0xff, 0xff), |
2496 |
++ .driver_info = RSVD(1) | RSVD(2) | RSVD(3) | RSVD(4) | NUMEP2 }, |
2497 |
++ { USB_DEVICE_AND_INTERFACE_INFO(QUECTEL_VENDOR_ID, QUECTEL_PRODUCT_EM12, 0xff, 0, 0) }, |
2498 |
+ { USB_DEVICE(CMOTECH_VENDOR_ID, CMOTECH_PRODUCT_6001) }, |
2499 |
+ { USB_DEVICE(CMOTECH_VENDOR_ID, CMOTECH_PRODUCT_CMU_300) }, |
2500 |
+ { USB_DEVICE(CMOTECH_VENDOR_ID, CMOTECH_PRODUCT_6003), |
2501 |
+@@ -1942,10 +1947,12 @@ static const struct usb_device_id option_ids[] = { |
2502 |
+ .driver_info = RSVD(4) }, |
2503 |
+ { USB_DEVICE_INTERFACE_CLASS(0x2001, 0x7e35, 0xff), /* D-Link DWM-222 */ |
2504 |
+ .driver_info = RSVD(4) }, |
2505 |
+- { USB_DEVICE_AND_INTERFACE_INFO(0x07d1, 0x3e01, 0xff, 0xff, 0xff) }, /* D-Link DWM-152/C1 */ |
2506 |
+- { USB_DEVICE_AND_INTERFACE_INFO(0x07d1, 0x3e02, 0xff, 0xff, 0xff) }, /* D-Link DWM-156/C1 */ |
2507 |
+- { USB_DEVICE_AND_INTERFACE_INFO(0x07d1, 0x7e11, 0xff, 0xff, 0xff) }, /* D-Link DWM-156/A3 */ |
2508 |
+- { USB_DEVICE_INTERFACE_CLASS(0x2020, 0x4000, 0xff) }, /* OLICARD300 - MT6225 */ |
2509 |
++ { USB_DEVICE_AND_INTERFACE_INFO(0x07d1, 0x3e01, 0xff, 0xff, 0xff) }, /* D-Link DWM-152/C1 */ |
2510 |
++ { USB_DEVICE_AND_INTERFACE_INFO(0x07d1, 0x3e02, 0xff, 0xff, 0xff) }, /* D-Link DWM-156/C1 */ |
2511 |
++ { USB_DEVICE_AND_INTERFACE_INFO(0x07d1, 0x7e11, 0xff, 0xff, 0xff) }, /* D-Link DWM-156/A3 */ |
2512 |
++ { USB_DEVICE_INTERFACE_CLASS(0x2020, 0x2031, 0xff), /* Olicard 600 */ |
2513 |
++ .driver_info = RSVD(4) }, |
2514 |
++ { USB_DEVICE_INTERFACE_CLASS(0x2020, 0x4000, 0xff) }, /* OLICARD300 - MT6225 */ |
2515 |
+ { USB_DEVICE(INOVIA_VENDOR_ID, INOVIA_SEW858) }, |
2516 |
+ { USB_DEVICE(VIATELECOM_VENDOR_ID, VIATELECOM_PRODUCT_CDS7) }, |
2517 |
+ { USB_DEVICE_AND_INTERFACE_INFO(WETELECOM_VENDOR_ID, WETELECOM_PRODUCT_WMD200, 0xff, 0xff, 0xff) }, |
2518 |
+diff --git a/drivers/video/fbdev/goldfishfb.c b/drivers/video/fbdev/goldfishfb.c |
2519 |
+index 14a93cb21310..66d58e93bc32 100644 |
2520 |
+--- a/drivers/video/fbdev/goldfishfb.c |
2521 |
++++ b/drivers/video/fbdev/goldfishfb.c |
2522 |
+@@ -234,7 +234,7 @@ static int goldfish_fb_probe(struct platform_device *pdev) |
2523 |
+ fb->fb.var.activate = FB_ACTIVATE_NOW; |
2524 |
+ fb->fb.var.height = readl(fb->reg_base + FB_GET_PHYS_HEIGHT); |
2525 |
+ fb->fb.var.width = readl(fb->reg_base + FB_GET_PHYS_WIDTH); |
2526 |
+- fb->fb.var.pixclock = 10000; |
2527 |
++ fb->fb.var.pixclock = 0; |
2528 |
+ |
2529 |
+ fb->fb.var.red.offset = 11; |
2530 |
+ fb->fb.var.red.length = 5; |
2531 |
+diff --git a/fs/btrfs/raid56.c b/fs/btrfs/raid56.c |
2532 |
+index 2e995e565633..1e35a2327478 100644 |
2533 |
+--- a/fs/btrfs/raid56.c |
2534 |
++++ b/fs/btrfs/raid56.c |
2535 |
+@@ -2414,8 +2414,9 @@ static noinline void finish_parity_scrub(struct btrfs_raid_bio *rbio, |
2536 |
+ bitmap_clear(rbio->dbitmap, pagenr, 1); |
2537 |
+ kunmap(p); |
2538 |
+ |
2539 |
+- for (stripe = 0; stripe < rbio->real_stripes; stripe++) |
2540 |
++ for (stripe = 0; stripe < nr_data; stripe++) |
2541 |
+ kunmap(page_in_rbio(rbio, stripe, pagenr, 0)); |
2542 |
++ kunmap(p_page); |
2543 |
+ } |
2544 |
+ |
2545 |
+ __free_page(p_page); |
2546 |
+diff --git a/fs/btrfs/tree-log.c b/fs/btrfs/tree-log.c |
2547 |
+index 179a383a4aaa..9d72882b0f72 100644 |
2548 |
+--- a/fs/btrfs/tree-log.c |
2549 |
++++ b/fs/btrfs/tree-log.c |
2550 |
+@@ -3422,9 +3422,16 @@ static noinline int log_dir_items(struct btrfs_trans_handle *trans, |
2551 |
+ } |
2552 |
+ btrfs_release_path(path); |
2553 |
+ |
2554 |
+- /* find the first key from this transaction again */ |
2555 |
++ /* |
2556 |
++ * Find the first key from this transaction again. See the note for |
2557 |
++ * log_new_dir_dentries, if we're logging a directory recursively we |
2558 |
++ * won't be holding its i_mutex, which means we can modify the directory |
2559 |
++ * while we're logging it. If we remove an entry between our first |
2560 |
++ * search and this search we'll not find the key again and can just |
2561 |
++ * bail. |
2562 |
++ */ |
2563 |
+ ret = btrfs_search_slot(NULL, root, &min_key, path, 0, 0); |
2564 |
+- if (WARN_ON(ret != 0)) |
2565 |
++ if (ret != 0) |
2566 |
+ goto done; |
2567 |
+ |
2568 |
+ /* |
2569 |
+@@ -4501,6 +4508,19 @@ static int logged_inode_size(struct btrfs_root *log, struct btrfs_inode *inode, |
2570 |
+ item = btrfs_item_ptr(path->nodes[0], path->slots[0], |
2571 |
+ struct btrfs_inode_item); |
2572 |
+ *size_ret = btrfs_inode_size(path->nodes[0], item); |
2573 |
++ /* |
2574 |
++ * If the in-memory inode's i_size is smaller then the inode |
2575 |
++ * size stored in the btree, return the inode's i_size, so |
2576 |
++ * that we get a correct inode size after replaying the log |
2577 |
++ * when before a power failure we had a shrinking truncate |
2578 |
++ * followed by addition of a new name (rename / new hard link). |
2579 |
++ * Otherwise return the inode size from the btree, to avoid |
2580 |
++ * data loss when replaying a log due to previously doing a |
2581 |
++ * write that expands the inode's size and logging a new name |
2582 |
++ * immediately after. |
2583 |
++ */ |
2584 |
++ if (*size_ret > inode->vfs_inode.i_size) |
2585 |
++ *size_ret = inode->vfs_inode.i_size; |
2586 |
+ } |
2587 |
+ |
2588 |
+ btrfs_release_path(path); |
2589 |
+diff --git a/fs/nfs/nfs4proc.c b/fs/nfs/nfs4proc.c |
2590 |
+index 9041a892701f..a225f98c9903 100644 |
2591 |
+--- a/fs/nfs/nfs4proc.c |
2592 |
++++ b/fs/nfs/nfs4proc.c |
2593 |
+@@ -2746,7 +2746,8 @@ static int _nfs4_open_and_get_state(struct nfs4_opendata *opendata, |
2594 |
+ nfs4_schedule_stateid_recovery(server, state); |
2595 |
+ } |
2596 |
+ out: |
2597 |
+- nfs4_sequence_free_slot(&opendata->o_res.seq_res); |
2598 |
++ if (!opendata->cancelled) |
2599 |
++ nfs4_sequence_free_slot(&opendata->o_res.seq_res); |
2600 |
+ return ret; |
2601 |
+ } |
2602 |
+ |
2603 |
+diff --git a/fs/ocfs2/refcounttree.c b/fs/ocfs2/refcounttree.c |
2604 |
+index 824f407df1db..3a4e1bca5e31 100644 |
2605 |
+--- a/fs/ocfs2/refcounttree.c |
2606 |
++++ b/fs/ocfs2/refcounttree.c |
2607 |
+@@ -4716,22 +4716,23 @@ out: |
2608 |
+ |
2609 |
+ /* Lock an inode and grab a bh pointing to the inode. */ |
2610 |
+ static int ocfs2_reflink_inodes_lock(struct inode *s_inode, |
2611 |
+- struct buffer_head **bh1, |
2612 |
++ struct buffer_head **bh_s, |
2613 |
+ struct inode *t_inode, |
2614 |
+- struct buffer_head **bh2) |
2615 |
++ struct buffer_head **bh_t) |
2616 |
+ { |
2617 |
+- struct inode *inode1; |
2618 |
+- struct inode *inode2; |
2619 |
++ struct inode *inode1 = s_inode; |
2620 |
++ struct inode *inode2 = t_inode; |
2621 |
+ struct ocfs2_inode_info *oi1; |
2622 |
+ struct ocfs2_inode_info *oi2; |
2623 |
++ struct buffer_head *bh1 = NULL; |
2624 |
++ struct buffer_head *bh2 = NULL; |
2625 |
+ bool same_inode = (s_inode == t_inode); |
2626 |
++ bool need_swap = (inode1->i_ino > inode2->i_ino); |
2627 |
+ int status; |
2628 |
+ |
2629 |
+ /* First grab the VFS and rw locks. */ |
2630 |
+ lock_two_nondirectories(s_inode, t_inode); |
2631 |
+- inode1 = s_inode; |
2632 |
+- inode2 = t_inode; |
2633 |
+- if (inode1->i_ino > inode2->i_ino) |
2634 |
++ if (need_swap) |
2635 |
+ swap(inode1, inode2); |
2636 |
+ |
2637 |
+ status = ocfs2_rw_lock(inode1, 1); |
2638 |
+@@ -4754,17 +4755,13 @@ static int ocfs2_reflink_inodes_lock(struct inode *s_inode, |
2639 |
+ trace_ocfs2_double_lock((unsigned long long)oi1->ip_blkno, |
2640 |
+ (unsigned long long)oi2->ip_blkno); |
2641 |
+ |
2642 |
+- if (*bh1) |
2643 |
+- *bh1 = NULL; |
2644 |
+- if (*bh2) |
2645 |
+- *bh2 = NULL; |
2646 |
+- |
2647 |
+ /* We always want to lock the one with the lower lockid first. */ |
2648 |
+ if (oi1->ip_blkno > oi2->ip_blkno) |
2649 |
+ mlog_errno(-ENOLCK); |
2650 |
+ |
2651 |
+ /* lock id1 */ |
2652 |
+- status = ocfs2_inode_lock_nested(inode1, bh1, 1, OI_LS_REFLINK_TARGET); |
2653 |
++ status = ocfs2_inode_lock_nested(inode1, &bh1, 1, |
2654 |
++ OI_LS_REFLINK_TARGET); |
2655 |
+ if (status < 0) { |
2656 |
+ if (status != -ENOENT) |
2657 |
+ mlog_errno(status); |
2658 |
+@@ -4773,15 +4770,25 @@ static int ocfs2_reflink_inodes_lock(struct inode *s_inode, |
2659 |
+ |
2660 |
+ /* lock id2 */ |
2661 |
+ if (!same_inode) { |
2662 |
+- status = ocfs2_inode_lock_nested(inode2, bh2, 1, |
2663 |
++ status = ocfs2_inode_lock_nested(inode2, &bh2, 1, |
2664 |
+ OI_LS_REFLINK_TARGET); |
2665 |
+ if (status < 0) { |
2666 |
+ if (status != -ENOENT) |
2667 |
+ mlog_errno(status); |
2668 |
+ goto out_cl1; |
2669 |
+ } |
2670 |
+- } else |
2671 |
+- *bh2 = *bh1; |
2672 |
++ } else { |
2673 |
++ bh2 = bh1; |
2674 |
++ } |
2675 |
++ |
2676 |
++ /* |
2677 |
++ * If we swapped inode order above, we have to swap the buffer heads |
2678 |
++ * before passing them back to the caller. |
2679 |
++ */ |
2680 |
++ if (need_swap) |
2681 |
++ swap(bh1, bh2); |
2682 |
++ *bh_s = bh1; |
2683 |
++ *bh_t = bh2; |
2684 |
+ |
2685 |
+ trace_ocfs2_double_lock_end( |
2686 |
+ (unsigned long long)OCFS2_I(inode1)->ip_blkno, |
2687 |
+@@ -4791,8 +4798,7 @@ static int ocfs2_reflink_inodes_lock(struct inode *s_inode, |
2688 |
+ |
2689 |
+ out_cl1: |
2690 |
+ ocfs2_inode_unlock(inode1, 1); |
2691 |
+- brelse(*bh1); |
2692 |
+- *bh1 = NULL; |
2693 |
++ brelse(bh1); |
2694 |
+ out_rw2: |
2695 |
+ ocfs2_rw_unlock(inode2, 1); |
2696 |
+ out_i2: |
2697 |
+diff --git a/fs/open.c b/fs/open.c |
2698 |
+index 7ea118471dce..28a3956c4479 100644 |
2699 |
+--- a/fs/open.c |
2700 |
++++ b/fs/open.c |
2701 |
+@@ -716,6 +716,12 @@ static int do_dentry_open(struct file *f, |
2702 |
+ return 0; |
2703 |
+ } |
2704 |
+ |
2705 |
++ /* Any file opened for execve()/uselib() has to be a regular file. */ |
2706 |
++ if (unlikely(f->f_flags & FMODE_EXEC && !S_ISREG(inode->i_mode))) { |
2707 |
++ error = -EACCES; |
2708 |
++ goto cleanup_file; |
2709 |
++ } |
2710 |
++ |
2711 |
+ if (f->f_mode & FMODE_WRITE && !special_file(inode->i_mode)) { |
2712 |
+ error = get_write_access(inode); |
2713 |
+ if (unlikely(error)) |
2714 |
+diff --git a/fs/proc/proc_sysctl.c b/fs/proc/proc_sysctl.c |
2715 |
+index f69c545f5868..8d5422bb9c1a 100644 |
2716 |
+--- a/fs/proc/proc_sysctl.c |
2717 |
++++ b/fs/proc/proc_sysctl.c |
2718 |
+@@ -1620,7 +1620,8 @@ static void drop_sysctl_table(struct ctl_table_header *header) |
2719 |
+ if (--header->nreg) |
2720 |
+ return; |
2721 |
+ |
2722 |
+- put_links(header); |
2723 |
++ if (parent) |
2724 |
++ put_links(header); |
2725 |
+ start_unregistering(header); |
2726 |
+ if (!--header->count) |
2727 |
+ kfree_rcu(header, rcu); |
2728 |
+diff --git a/include/net/sctp/checksum.h b/include/net/sctp/checksum.h |
2729 |
+index 4a5b9a306c69..803fc26ef0ba 100644 |
2730 |
+--- a/include/net/sctp/checksum.h |
2731 |
++++ b/include/net/sctp/checksum.h |
2732 |
+@@ -60,7 +60,7 @@ static inline __wsum sctp_csum_combine(__wsum csum, __wsum csum2, |
2733 |
+ static inline __le32 sctp_compute_cksum(const struct sk_buff *skb, |
2734 |
+ unsigned int offset) |
2735 |
+ { |
2736 |
+- struct sctphdr *sh = sctp_hdr(skb); |
2737 |
++ struct sctphdr *sh = (struct sctphdr *)(skb->data + offset); |
2738 |
+ __le32 ret, old = sh->checksum; |
2739 |
+ const struct skb_checksum_ops ops = { |
2740 |
+ .update = sctp_csum_update, |
2741 |
+diff --git a/include/net/sock.h b/include/net/sock.h |
2742 |
+index 4280e96d4b46..60eef7f1ac05 100644 |
2743 |
+--- a/include/net/sock.h |
2744 |
++++ b/include/net/sock.h |
2745 |
+@@ -682,6 +682,12 @@ static inline void sk_add_node_rcu(struct sock *sk, struct hlist_head *list) |
2746 |
+ hlist_add_head_rcu(&sk->sk_node, list); |
2747 |
+ } |
2748 |
+ |
2749 |
++static inline void sk_add_node_tail_rcu(struct sock *sk, struct hlist_head *list) |
2750 |
++{ |
2751 |
++ sock_hold(sk); |
2752 |
++ hlist_add_tail_rcu(&sk->sk_node, list); |
2753 |
++} |
2754 |
++ |
2755 |
+ static inline void __sk_nulls_add_node_rcu(struct sock *sk, struct hlist_nulls_head *list) |
2756 |
+ { |
2757 |
+ hlist_nulls_add_head_rcu(&sk->sk_nulls_node, list); |
2758 |
+diff --git a/kernel/cpu.c b/kernel/cpu.c |
2759 |
+index 0171754db32b..32f0432f0c26 100644 |
2760 |
+--- a/kernel/cpu.c |
2761 |
++++ b/kernel/cpu.c |
2762 |
+@@ -538,6 +538,20 @@ static void undo_cpu_up(unsigned int cpu, struct cpuhp_cpu_state *st) |
2763 |
+ } |
2764 |
+ } |
2765 |
+ |
2766 |
++static inline bool can_rollback_cpu(struct cpuhp_cpu_state *st) |
2767 |
++{ |
2768 |
++ if (IS_ENABLED(CONFIG_HOTPLUG_CPU)) |
2769 |
++ return true; |
2770 |
++ /* |
2771 |
++ * When CPU hotplug is disabled, then taking the CPU down is not |
2772 |
++ * possible because takedown_cpu() and the architecture and |
2773 |
++ * subsystem specific mechanisms are not available. So the CPU |
2774 |
++ * which would be completely unplugged again needs to stay around |
2775 |
++ * in the current state. |
2776 |
++ */ |
2777 |
++ return st->state <= CPUHP_BRINGUP_CPU; |
2778 |
++} |
2779 |
++ |
2780 |
+ static int cpuhp_up_callbacks(unsigned int cpu, struct cpuhp_cpu_state *st, |
2781 |
+ enum cpuhp_state target) |
2782 |
+ { |
2783 |
+@@ -548,8 +562,10 @@ static int cpuhp_up_callbacks(unsigned int cpu, struct cpuhp_cpu_state *st, |
2784 |
+ st->state++; |
2785 |
+ ret = cpuhp_invoke_callback(cpu, st->state, true, NULL, NULL); |
2786 |
+ if (ret) { |
2787 |
+- st->target = prev_state; |
2788 |
+- undo_cpu_up(cpu, st); |
2789 |
++ if (can_rollback_cpu(st)) { |
2790 |
++ st->target = prev_state; |
2791 |
++ undo_cpu_up(cpu, st); |
2792 |
++ } |
2793 |
+ break; |
2794 |
+ } |
2795 |
+ } |
2796 |
+diff --git a/lib/rhashtable.c b/lib/rhashtable.c |
2797 |
+index cebbcec877d7..cb577ca65fa9 100644 |
2798 |
+--- a/lib/rhashtable.c |
2799 |
++++ b/lib/rhashtable.c |
2800 |
+@@ -459,8 +459,12 @@ static void rht_deferred_worker(struct work_struct *work) |
2801 |
+ else if (tbl->nest) |
2802 |
+ err = rhashtable_rehash_alloc(ht, tbl, tbl->size); |
2803 |
+ |
2804 |
+- if (!err) |
2805 |
+- err = rhashtable_rehash_table(ht); |
2806 |
++ if (!err || err == -EEXIST) { |
2807 |
++ int nerr; |
2808 |
++ |
2809 |
++ nerr = rhashtable_rehash_table(ht); |
2810 |
++ err = err ?: nerr; |
2811 |
++ } |
2812 |
+ |
2813 |
+ mutex_unlock(&ht->mutex); |
2814 |
+ |
2815 |
+diff --git a/mm/migrate.c b/mm/migrate.c |
2816 |
+index 877269339fa7..9a3ce8847308 100644 |
2817 |
+--- a/mm/migrate.c |
2818 |
++++ b/mm/migrate.c |
2819 |
+@@ -247,10 +247,8 @@ static bool remove_migration_pte(struct page *page, struct vm_area_struct *vma, |
2820 |
+ pte = swp_entry_to_pte(entry); |
2821 |
+ } else if (is_device_public_page(new)) { |
2822 |
+ pte = pte_mkdevmap(pte); |
2823 |
+- flush_dcache_page(new); |
2824 |
+ } |
2825 |
+- } else |
2826 |
+- flush_dcache_page(new); |
2827 |
++ } |
2828 |
+ |
2829 |
+ #ifdef CONFIG_HUGETLB_PAGE |
2830 |
+ if (PageHuge(new)) { |
2831 |
+@@ -971,6 +969,13 @@ static int move_to_new_page(struct page *newpage, struct page *page, |
2832 |
+ */ |
2833 |
+ if (!PageMappingFlags(page)) |
2834 |
+ page->mapping = NULL; |
2835 |
++ |
2836 |
++ if (unlikely(is_zone_device_page(newpage))) { |
2837 |
++ if (is_device_public_page(newpage)) |
2838 |
++ flush_dcache_page(newpage); |
2839 |
++ } else |
2840 |
++ flush_dcache_page(newpage); |
2841 |
++ |
2842 |
+ } |
2843 |
+ out: |
2844 |
+ return rc; |
2845 |
+diff --git a/net/bluetooth/l2cap_core.c b/net/bluetooth/l2cap_core.c |
2846 |
+index 9b7907ebfa01..b510da76170e 100644 |
2847 |
+--- a/net/bluetooth/l2cap_core.c |
2848 |
++++ b/net/bluetooth/l2cap_core.c |
2849 |
+@@ -3336,16 +3336,22 @@ static int l2cap_parse_conf_req(struct l2cap_chan *chan, void *data, size_t data |
2850 |
+ |
2851 |
+ while (len >= L2CAP_CONF_OPT_SIZE) { |
2852 |
+ len -= l2cap_get_conf_opt(&req, &type, &olen, &val); |
2853 |
++ if (len < 0) |
2854 |
++ break; |
2855 |
+ |
2856 |
+ hint = type & L2CAP_CONF_HINT; |
2857 |
+ type &= L2CAP_CONF_MASK; |
2858 |
+ |
2859 |
+ switch (type) { |
2860 |
+ case L2CAP_CONF_MTU: |
2861 |
++ if (olen != 2) |
2862 |
++ break; |
2863 |
+ mtu = val; |
2864 |
+ break; |
2865 |
+ |
2866 |
+ case L2CAP_CONF_FLUSH_TO: |
2867 |
++ if (olen != 2) |
2868 |
++ break; |
2869 |
+ chan->flush_to = val; |
2870 |
+ break; |
2871 |
+ |
2872 |
+@@ -3353,26 +3359,30 @@ static int l2cap_parse_conf_req(struct l2cap_chan *chan, void *data, size_t data |
2873 |
+ break; |
2874 |
+ |
2875 |
+ case L2CAP_CONF_RFC: |
2876 |
+- if (olen == sizeof(rfc)) |
2877 |
+- memcpy(&rfc, (void *) val, olen); |
2878 |
++ if (olen != sizeof(rfc)) |
2879 |
++ break; |
2880 |
++ memcpy(&rfc, (void *) val, olen); |
2881 |
+ break; |
2882 |
+ |
2883 |
+ case L2CAP_CONF_FCS: |
2884 |
++ if (olen != 1) |
2885 |
++ break; |
2886 |
+ if (val == L2CAP_FCS_NONE) |
2887 |
+ set_bit(CONF_RECV_NO_FCS, &chan->conf_state); |
2888 |
+ break; |
2889 |
+ |
2890 |
+ case L2CAP_CONF_EFS: |
2891 |
+- if (olen == sizeof(efs)) { |
2892 |
+- remote_efs = 1; |
2893 |
+- memcpy(&efs, (void *) val, olen); |
2894 |
+- } |
2895 |
++ if (olen != sizeof(efs)) |
2896 |
++ break; |
2897 |
++ remote_efs = 1; |
2898 |
++ memcpy(&efs, (void *) val, olen); |
2899 |
+ break; |
2900 |
+ |
2901 |
+ case L2CAP_CONF_EWS: |
2902 |
++ if (olen != 2) |
2903 |
++ break; |
2904 |
+ if (!(chan->conn->local_fixed_chan & L2CAP_FC_A2MP)) |
2905 |
+ return -ECONNREFUSED; |
2906 |
+- |
2907 |
+ set_bit(FLAG_EXT_CTRL, &chan->flags); |
2908 |
+ set_bit(CONF_EWS_RECV, &chan->conf_state); |
2909 |
+ chan->tx_win_max = L2CAP_DEFAULT_EXT_WINDOW; |
2910 |
+@@ -3382,7 +3392,6 @@ static int l2cap_parse_conf_req(struct l2cap_chan *chan, void *data, size_t data |
2911 |
+ default: |
2912 |
+ if (hint) |
2913 |
+ break; |
2914 |
+- |
2915 |
+ result = L2CAP_CONF_UNKNOWN; |
2916 |
+ *((u8 *) ptr++) = type; |
2917 |
+ break; |
2918 |
+@@ -3547,58 +3556,65 @@ static int l2cap_parse_conf_rsp(struct l2cap_chan *chan, void *rsp, int len, |
2919 |
+ |
2920 |
+ while (len >= L2CAP_CONF_OPT_SIZE) { |
2921 |
+ len -= l2cap_get_conf_opt(&rsp, &type, &olen, &val); |
2922 |
++ if (len < 0) |
2923 |
++ break; |
2924 |
+ |
2925 |
+ switch (type) { |
2926 |
+ case L2CAP_CONF_MTU: |
2927 |
++ if (olen != 2) |
2928 |
++ break; |
2929 |
+ if (val < L2CAP_DEFAULT_MIN_MTU) { |
2930 |
+ *result = L2CAP_CONF_UNACCEPT; |
2931 |
+ chan->imtu = L2CAP_DEFAULT_MIN_MTU; |
2932 |
+ } else |
2933 |
+ chan->imtu = val; |
2934 |
+- l2cap_add_conf_opt(&ptr, L2CAP_CONF_MTU, 2, chan->imtu, endptr - ptr); |
2935 |
++ l2cap_add_conf_opt(&ptr, L2CAP_CONF_MTU, 2, chan->imtu, |
2936 |
++ endptr - ptr); |
2937 |
+ break; |
2938 |
+ |
2939 |
+ case L2CAP_CONF_FLUSH_TO: |
2940 |
++ if (olen != 2) |
2941 |
++ break; |
2942 |
+ chan->flush_to = val; |
2943 |
+- l2cap_add_conf_opt(&ptr, L2CAP_CONF_FLUSH_TO, |
2944 |
+- 2, chan->flush_to, endptr - ptr); |
2945 |
++ l2cap_add_conf_opt(&ptr, L2CAP_CONF_FLUSH_TO, 2, |
2946 |
++ chan->flush_to, endptr - ptr); |
2947 |
+ break; |
2948 |
+ |
2949 |
+ case L2CAP_CONF_RFC: |
2950 |
+- if (olen == sizeof(rfc)) |
2951 |
+- memcpy(&rfc, (void *)val, olen); |
2952 |
+- |
2953 |
++ if (olen != sizeof(rfc)) |
2954 |
++ break; |
2955 |
++ memcpy(&rfc, (void *)val, olen); |
2956 |
+ if (test_bit(CONF_STATE2_DEVICE, &chan->conf_state) && |
2957 |
+ rfc.mode != chan->mode) |
2958 |
+ return -ECONNREFUSED; |
2959 |
+- |
2960 |
+ chan->fcs = 0; |
2961 |
+- |
2962 |
+- l2cap_add_conf_opt(&ptr, L2CAP_CONF_RFC, |
2963 |
+- sizeof(rfc), (unsigned long) &rfc, endptr - ptr); |
2964 |
++ l2cap_add_conf_opt(&ptr, L2CAP_CONF_RFC, sizeof(rfc), |
2965 |
++ (unsigned long) &rfc, endptr - ptr); |
2966 |
+ break; |
2967 |
+ |
2968 |
+ case L2CAP_CONF_EWS: |
2969 |
++ if (olen != 2) |
2970 |
++ break; |
2971 |
+ chan->ack_win = min_t(u16, val, chan->ack_win); |
2972 |
+ l2cap_add_conf_opt(&ptr, L2CAP_CONF_EWS, 2, |
2973 |
+ chan->tx_win, endptr - ptr); |
2974 |
+ break; |
2975 |
+ |
2976 |
+ case L2CAP_CONF_EFS: |
2977 |
+- if (olen == sizeof(efs)) { |
2978 |
+- memcpy(&efs, (void *)val, olen); |
2979 |
+- |
2980 |
+- if (chan->local_stype != L2CAP_SERV_NOTRAFIC && |
2981 |
+- efs.stype != L2CAP_SERV_NOTRAFIC && |
2982 |
+- efs.stype != chan->local_stype) |
2983 |
+- return -ECONNREFUSED; |
2984 |
+- |
2985 |
+- l2cap_add_conf_opt(&ptr, L2CAP_CONF_EFS, sizeof(efs), |
2986 |
+- (unsigned long) &efs, endptr - ptr); |
2987 |
+- } |
2988 |
++ if (olen != sizeof(efs)) |
2989 |
++ break; |
2990 |
++ memcpy(&efs, (void *)val, olen); |
2991 |
++ if (chan->local_stype != L2CAP_SERV_NOTRAFIC && |
2992 |
++ efs.stype != L2CAP_SERV_NOTRAFIC && |
2993 |
++ efs.stype != chan->local_stype) |
2994 |
++ return -ECONNREFUSED; |
2995 |
++ l2cap_add_conf_opt(&ptr, L2CAP_CONF_EFS, sizeof(efs), |
2996 |
++ (unsigned long) &efs, endptr - ptr); |
2997 |
+ break; |
2998 |
+ |
2999 |
+ case L2CAP_CONF_FCS: |
3000 |
++ if (olen != 1) |
3001 |
++ break; |
3002 |
+ if (*result == L2CAP_CONF_PENDING) |
3003 |
+ if (val == L2CAP_FCS_NONE) |
3004 |
+ set_bit(CONF_RECV_NO_FCS, |
3005 |
+@@ -3727,13 +3743,18 @@ static void l2cap_conf_rfc_get(struct l2cap_chan *chan, void *rsp, int len) |
3006 |
+ |
3007 |
+ while (len >= L2CAP_CONF_OPT_SIZE) { |
3008 |
+ len -= l2cap_get_conf_opt(&rsp, &type, &olen, &val); |
3009 |
++ if (len < 0) |
3010 |
++ break; |
3011 |
+ |
3012 |
+ switch (type) { |
3013 |
+ case L2CAP_CONF_RFC: |
3014 |
+- if (olen == sizeof(rfc)) |
3015 |
+- memcpy(&rfc, (void *)val, olen); |
3016 |
++ if (olen != sizeof(rfc)) |
3017 |
++ break; |
3018 |
++ memcpy(&rfc, (void *)val, olen); |
3019 |
+ break; |
3020 |
+ case L2CAP_CONF_EWS: |
3021 |
++ if (olen != 2) |
3022 |
++ break; |
3023 |
+ txwin_ext = val; |
3024 |
+ break; |
3025 |
+ } |
3026 |
+diff --git a/net/core/datagram.c b/net/core/datagram.c |
3027 |
+index d8a0774f7608..dcb333e95702 100644 |
3028 |
+--- a/net/core/datagram.c |
3029 |
++++ b/net/core/datagram.c |
3030 |
+@@ -281,7 +281,7 @@ struct sk_buff *__skb_try_recv_datagram(struct sock *sk, unsigned int flags, |
3031 |
+ break; |
3032 |
+ |
3033 |
+ sk_busy_loop(sk, flags & MSG_DONTWAIT); |
3034 |
+- } while (!skb_queue_empty(&sk->sk_receive_queue)); |
3035 |
++ } while (sk->sk_receive_queue.prev != *last); |
3036 |
+ |
3037 |
+ error = -EAGAIN; |
3038 |
+ |
3039 |
+diff --git a/net/core/net-sysfs.c b/net/core/net-sysfs.c |
3040 |
+index c6a2655cc28a..dee57c5ff738 100644 |
3041 |
+--- a/net/core/net-sysfs.c |
3042 |
++++ b/net/core/net-sysfs.c |
3043 |
+@@ -917,6 +917,8 @@ static int rx_queue_add_kobject(struct net_device *dev, int index) |
3044 |
+ if (error) |
3045 |
+ return error; |
3046 |
+ |
3047 |
++ dev_hold(queue->dev); |
3048 |
++ |
3049 |
+ if (dev->sysfs_rx_queue_group) { |
3050 |
+ error = sysfs_create_group(kobj, dev->sysfs_rx_queue_group); |
3051 |
+ if (error) { |
3052 |
+@@ -926,7 +928,6 @@ static int rx_queue_add_kobject(struct net_device *dev, int index) |
3053 |
+ } |
3054 |
+ |
3055 |
+ kobject_uevent(kobj, KOBJ_ADD); |
3056 |
+- dev_hold(queue->dev); |
3057 |
+ |
3058 |
+ return error; |
3059 |
+ } |
3060 |
+@@ -1327,6 +1328,8 @@ static int netdev_queue_add_kobject(struct net_device *dev, int index) |
3061 |
+ if (error) |
3062 |
+ return error; |
3063 |
+ |
3064 |
++ dev_hold(queue->dev); |
3065 |
++ |
3066 |
+ #ifdef CONFIG_BQL |
3067 |
+ error = sysfs_create_group(kobj, &dql_group); |
3068 |
+ if (error) { |
3069 |
+@@ -1336,7 +1339,6 @@ static int netdev_queue_add_kobject(struct net_device *dev, int index) |
3070 |
+ #endif |
3071 |
+ |
3072 |
+ kobject_uevent(kobj, KOBJ_ADD); |
3073 |
+- dev_hold(queue->dev); |
3074 |
+ |
3075 |
+ return 0; |
3076 |
+ } |
3077 |
+diff --git a/net/dccp/ipv6.c b/net/dccp/ipv6.c |
3078 |
+index 6344f1b18a6a..58a401e9cf09 100644 |
3079 |
+--- a/net/dccp/ipv6.c |
3080 |
++++ b/net/dccp/ipv6.c |
3081 |
+@@ -433,8 +433,8 @@ static struct sock *dccp_v6_request_recv_sock(const struct sock *sk, |
3082 |
+ newnp->ipv6_mc_list = NULL; |
3083 |
+ newnp->ipv6_ac_list = NULL; |
3084 |
+ newnp->ipv6_fl_list = NULL; |
3085 |
+- newnp->mcast_oif = inet6_iif(skb); |
3086 |
+- newnp->mcast_hops = ipv6_hdr(skb)->hop_limit; |
3087 |
++ newnp->mcast_oif = inet_iif(skb); |
3088 |
++ newnp->mcast_hops = ip_hdr(skb)->ttl; |
3089 |
+ |
3090 |
+ /* |
3091 |
+ * No need to charge this sock to the relevant IPv6 refcnt debug socks count |
3092 |
+diff --git a/net/ipv6/tcp_ipv6.c b/net/ipv6/tcp_ipv6.c |
3093 |
+index ba8586aadffa..7b4ce3f9e2f4 100644 |
3094 |
+--- a/net/ipv6/tcp_ipv6.c |
3095 |
++++ b/net/ipv6/tcp_ipv6.c |
3096 |
+@@ -1083,11 +1083,11 @@ static struct sock *tcp_v6_syn_recv_sock(const struct sock *sk, struct sk_buff * |
3097 |
+ newnp->ipv6_fl_list = NULL; |
3098 |
+ newnp->pktoptions = NULL; |
3099 |
+ newnp->opt = NULL; |
3100 |
+- newnp->mcast_oif = tcp_v6_iif(skb); |
3101 |
+- newnp->mcast_hops = ipv6_hdr(skb)->hop_limit; |
3102 |
+- newnp->rcv_flowinfo = ip6_flowinfo(ipv6_hdr(skb)); |
3103 |
++ newnp->mcast_oif = inet_iif(skb); |
3104 |
++ newnp->mcast_hops = ip_hdr(skb)->ttl; |
3105 |
++ newnp->rcv_flowinfo = 0; |
3106 |
+ if (np->repflow) |
3107 |
+- newnp->flow_label = ip6_flowlabel(ipv6_hdr(skb)); |
3108 |
++ newnp->flow_label = 0; |
3109 |
+ |
3110 |
+ /* |
3111 |
+ * No need to charge this sock to the relevant IPv6 refcnt debug socks count |
3112 |
+diff --git a/net/netlink/genetlink.c b/net/netlink/genetlink.c |
3113 |
+index b9ce82c9440f..e9b8b0b0ac43 100644 |
3114 |
+--- a/net/netlink/genetlink.c |
3115 |
++++ b/net/netlink/genetlink.c |
3116 |
+@@ -365,7 +365,7 @@ int genl_register_family(struct genl_family *family) |
3117 |
+ start, end + 1, GFP_KERNEL); |
3118 |
+ if (family->id < 0) { |
3119 |
+ err = family->id; |
3120 |
+- goto errout_locked; |
3121 |
++ goto errout_free; |
3122 |
+ } |
3123 |
+ |
3124 |
+ err = genl_validate_assign_mc_groups(family); |
3125 |
+@@ -384,6 +384,7 @@ int genl_register_family(struct genl_family *family) |
3126 |
+ |
3127 |
+ errout_remove: |
3128 |
+ idr_remove(&genl_fam_idr, family->id); |
3129 |
++errout_free: |
3130 |
+ kfree(family->attrbuf); |
3131 |
+ errout_locked: |
3132 |
+ genl_unlock_all(); |
3133 |
+diff --git a/net/packet/af_packet.c b/net/packet/af_packet.c |
3134 |
+index a2bd5917a2a9..e8ca6aa3a32f 100644 |
3135 |
+--- a/net/packet/af_packet.c |
3136 |
++++ b/net/packet/af_packet.c |
3137 |
+@@ -3281,7 +3281,7 @@ static int packet_create(struct net *net, struct socket *sock, int protocol, |
3138 |
+ } |
3139 |
+ |
3140 |
+ mutex_lock(&net->packet.sklist_lock); |
3141 |
+- sk_add_node_rcu(sk, &net->packet.sklist); |
3142 |
++ sk_add_node_tail_rcu(sk, &net->packet.sklist); |
3143 |
+ mutex_unlock(&net->packet.sklist_lock); |
3144 |
+ |
3145 |
+ preempt_disable(); |
3146 |
+@@ -4232,7 +4232,7 @@ static struct pgv *alloc_pg_vec(struct tpacket_req *req, int order) |
3147 |
+ struct pgv *pg_vec; |
3148 |
+ int i; |
3149 |
+ |
3150 |
+- pg_vec = kcalloc(block_nr, sizeof(struct pgv), GFP_KERNEL); |
3151 |
++ pg_vec = kcalloc(block_nr, sizeof(struct pgv), GFP_KERNEL | __GFP_NOWARN); |
3152 |
+ if (unlikely(!pg_vec)) |
3153 |
+ goto out; |
3154 |
+ |
3155 |
+diff --git a/net/rose/rose_subr.c b/net/rose/rose_subr.c |
3156 |
+index 7ca57741b2fb..7849f286bb93 100644 |
3157 |
+--- a/net/rose/rose_subr.c |
3158 |
++++ b/net/rose/rose_subr.c |
3159 |
+@@ -105,16 +105,17 @@ void rose_write_internal(struct sock *sk, int frametype) |
3160 |
+ struct sk_buff *skb; |
3161 |
+ unsigned char *dptr; |
3162 |
+ unsigned char lci1, lci2; |
3163 |
+- char buffer[100]; |
3164 |
+- int len, faclen = 0; |
3165 |
++ int maxfaclen = 0; |
3166 |
++ int len, faclen; |
3167 |
++ int reserve; |
3168 |
+ |
3169 |
+- len = AX25_BPQ_HEADER_LEN + AX25_MAX_HEADER_LEN + ROSE_MIN_LEN + 1; |
3170 |
++ reserve = AX25_BPQ_HEADER_LEN + AX25_MAX_HEADER_LEN + 1; |
3171 |
++ len = ROSE_MIN_LEN; |
3172 |
+ |
3173 |
+ switch (frametype) { |
3174 |
+ case ROSE_CALL_REQUEST: |
3175 |
+ len += 1 + ROSE_ADDR_LEN + ROSE_ADDR_LEN; |
3176 |
+- faclen = rose_create_facilities(buffer, rose); |
3177 |
+- len += faclen; |
3178 |
++ maxfaclen = 256; |
3179 |
+ break; |
3180 |
+ case ROSE_CALL_ACCEPTED: |
3181 |
+ case ROSE_CLEAR_REQUEST: |
3182 |
+@@ -123,15 +124,16 @@ void rose_write_internal(struct sock *sk, int frametype) |
3183 |
+ break; |
3184 |
+ } |
3185 |
+ |
3186 |
+- if ((skb = alloc_skb(len, GFP_ATOMIC)) == NULL) |
3187 |
++ skb = alloc_skb(reserve + len + maxfaclen, GFP_ATOMIC); |
3188 |
++ if (!skb) |
3189 |
+ return; |
3190 |
+ |
3191 |
+ /* |
3192 |
+ * Space for AX.25 header and PID. |
3193 |
+ */ |
3194 |
+- skb_reserve(skb, AX25_BPQ_HEADER_LEN + AX25_MAX_HEADER_LEN + 1); |
3195 |
++ skb_reserve(skb, reserve); |
3196 |
+ |
3197 |
+- dptr = skb_put(skb, skb_tailroom(skb)); |
3198 |
++ dptr = skb_put(skb, len); |
3199 |
+ |
3200 |
+ lci1 = (rose->lci >> 8) & 0x0F; |
3201 |
+ lci2 = (rose->lci >> 0) & 0xFF; |
3202 |
+@@ -146,7 +148,8 @@ void rose_write_internal(struct sock *sk, int frametype) |
3203 |
+ dptr += ROSE_ADDR_LEN; |
3204 |
+ memcpy(dptr, &rose->source_addr, ROSE_ADDR_LEN); |
3205 |
+ dptr += ROSE_ADDR_LEN; |
3206 |
+- memcpy(dptr, buffer, faclen); |
3207 |
++ faclen = rose_create_facilities(dptr, rose); |
3208 |
++ skb_put(skb, faclen); |
3209 |
+ dptr += faclen; |
3210 |
+ break; |
3211 |
+ |
3212 |
+diff --git a/scripts/mod/modpost.c b/scripts/mod/modpost.c |
3213 |
+index e36a673833ae..c22041a4fc36 100644 |
3214 |
+--- a/scripts/mod/modpost.c |
3215 |
++++ b/scripts/mod/modpost.c |
3216 |
+@@ -645,7 +645,7 @@ static void handle_modversions(struct module *mod, struct elf_info *info, |
3217 |
+ info->sechdrs[sym->st_shndx].sh_offset - |
3218 |
+ (info->hdr->e_type != ET_REL ? |
3219 |
+ info->sechdrs[sym->st_shndx].sh_addr : 0); |
3220 |
+- crc = *crcp; |
3221 |
++ crc = TO_NATIVE(*crcp); |
3222 |
+ } |
3223 |
+ sym_update_crc(symname + strlen(CRC_PFX), mod, crc, |
3224 |
+ export); |
3225 |
+diff --git a/sound/core/oss/pcm_oss.c b/sound/core/oss/pcm_oss.c |
3226 |
+index df358e838b5b..bb0ab0f6ce9d 100644 |
3227 |
+--- a/sound/core/oss/pcm_oss.c |
3228 |
++++ b/sound/core/oss/pcm_oss.c |
3229 |
+@@ -940,6 +940,28 @@ static int snd_pcm_oss_change_params_locked(struct snd_pcm_substream *substream) |
3230 |
+ oss_frame_size = snd_pcm_format_physical_width(params_format(params)) * |
3231 |
+ params_channels(params) / 8; |
3232 |
+ |
3233 |
++ err = snd_pcm_oss_period_size(substream, params, sparams); |
3234 |
++ if (err < 0) |
3235 |
++ goto failure; |
3236 |
++ |
3237 |
++ n = snd_pcm_plug_slave_size(substream, runtime->oss.period_bytes / oss_frame_size); |
3238 |
++ err = snd_pcm_hw_param_near(substream, sparams, SNDRV_PCM_HW_PARAM_PERIOD_SIZE, n, NULL); |
3239 |
++ if (err < 0) |
3240 |
++ goto failure; |
3241 |
++ |
3242 |
++ err = snd_pcm_hw_param_near(substream, sparams, SNDRV_PCM_HW_PARAM_PERIODS, |
3243 |
++ runtime->oss.periods, NULL); |
3244 |
++ if (err < 0) |
3245 |
++ goto failure; |
3246 |
++ |
3247 |
++ snd_pcm_kernel_ioctl(substream, SNDRV_PCM_IOCTL_DROP, NULL); |
3248 |
++ |
3249 |
++ err = snd_pcm_kernel_ioctl(substream, SNDRV_PCM_IOCTL_HW_PARAMS, sparams); |
3250 |
++ if (err < 0) { |
3251 |
++ pcm_dbg(substream->pcm, "HW_PARAMS failed: %i\n", err); |
3252 |
++ goto failure; |
3253 |
++ } |
3254 |
++ |
3255 |
+ #ifdef CONFIG_SND_PCM_OSS_PLUGINS |
3256 |
+ snd_pcm_oss_plugin_clear(substream); |
3257 |
+ if (!direct) { |
3258 |
+@@ -974,27 +996,6 @@ static int snd_pcm_oss_change_params_locked(struct snd_pcm_substream *substream) |
3259 |
+ } |
3260 |
+ #endif |
3261 |
+ |
3262 |
+- err = snd_pcm_oss_period_size(substream, params, sparams); |
3263 |
+- if (err < 0) |
3264 |
+- goto failure; |
3265 |
+- |
3266 |
+- n = snd_pcm_plug_slave_size(substream, runtime->oss.period_bytes / oss_frame_size); |
3267 |
+- err = snd_pcm_hw_param_near(substream, sparams, SNDRV_PCM_HW_PARAM_PERIOD_SIZE, n, NULL); |
3268 |
+- if (err < 0) |
3269 |
+- goto failure; |
3270 |
+- |
3271 |
+- err = snd_pcm_hw_param_near(substream, sparams, SNDRV_PCM_HW_PARAM_PERIODS, |
3272 |
+- runtime->oss.periods, NULL); |
3273 |
+- if (err < 0) |
3274 |
+- goto failure; |
3275 |
+- |
3276 |
+- snd_pcm_kernel_ioctl(substream, SNDRV_PCM_IOCTL_DROP, NULL); |
3277 |
+- |
3278 |
+- if ((err = snd_pcm_kernel_ioctl(substream, SNDRV_PCM_IOCTL_HW_PARAMS, sparams)) < 0) { |
3279 |
+- pcm_dbg(substream->pcm, "HW_PARAMS failed: %i\n", err); |
3280 |
+- goto failure; |
3281 |
+- } |
3282 |
+- |
3283 |
+ if (runtime->oss.trigger) { |
3284 |
+ sw_params->start_threshold = 1; |
3285 |
+ } else { |
3286 |
+diff --git a/sound/core/pcm_native.c b/sound/core/pcm_native.c |
3287 |
+index 966ac384c3f4..1a63d456a3dc 100644 |
3288 |
+--- a/sound/core/pcm_native.c |
3289 |
++++ b/sound/core/pcm_native.c |
3290 |
+@@ -1395,8 +1395,15 @@ static int snd_pcm_pause(struct snd_pcm_substream *substream, int push) |
3291 |
+ static int snd_pcm_pre_suspend(struct snd_pcm_substream *substream, int state) |
3292 |
+ { |
3293 |
+ struct snd_pcm_runtime *runtime = substream->runtime; |
3294 |
+- if (runtime->status->state == SNDRV_PCM_STATE_SUSPENDED) |
3295 |
++ switch (runtime->status->state) { |
3296 |
++ case SNDRV_PCM_STATE_SUSPENDED: |
3297 |
+ return -EBUSY; |
3298 |
++ /* unresumable PCM state; return -EBUSY for skipping suspend */ |
3299 |
++ case SNDRV_PCM_STATE_OPEN: |
3300 |
++ case SNDRV_PCM_STATE_SETUP: |
3301 |
++ case SNDRV_PCM_STATE_DISCONNECTED: |
3302 |
++ return -EBUSY; |
3303 |
++ } |
3304 |
+ runtime->trigger_master = substream; |
3305 |
+ return 0; |
3306 |
+ } |
3307 |
+diff --git a/sound/core/rawmidi.c b/sound/core/rawmidi.c |
3308 |
+index abacbbc0b0e8..d22472ba211e 100644 |
3309 |
+--- a/sound/core/rawmidi.c |
3310 |
++++ b/sound/core/rawmidi.c |
3311 |
+@@ -29,6 +29,7 @@ |
3312 |
+ #include <linux/mutex.h> |
3313 |
+ #include <linux/module.h> |
3314 |
+ #include <linux/delay.h> |
3315 |
++#include <linux/nospec.h> |
3316 |
+ #include <sound/rawmidi.h> |
3317 |
+ #include <sound/info.h> |
3318 |
+ #include <sound/control.h> |
3319 |
+@@ -591,6 +592,7 @@ static int __snd_rawmidi_info_select(struct snd_card *card, |
3320 |
+ return -ENXIO; |
3321 |
+ if (info->stream < 0 || info->stream > 1) |
3322 |
+ return -EINVAL; |
3323 |
++ info->stream = array_index_nospec(info->stream, 2); |
3324 |
+ pstr = &rmidi->streams[info->stream]; |
3325 |
+ if (pstr->substream_count == 0) |
3326 |
+ return -ENOENT; |
3327 |
+diff --git a/sound/core/seq/oss/seq_oss_synth.c b/sound/core/seq/oss/seq_oss_synth.c |
3328 |
+index 278ebb993122..c93945917235 100644 |
3329 |
+--- a/sound/core/seq/oss/seq_oss_synth.c |
3330 |
++++ b/sound/core/seq/oss/seq_oss_synth.c |
3331 |
+@@ -617,13 +617,14 @@ int |
3332 |
+ snd_seq_oss_synth_make_info(struct seq_oss_devinfo *dp, int dev, struct synth_info *inf) |
3333 |
+ { |
3334 |
+ struct seq_oss_synth *rec; |
3335 |
++ struct seq_oss_synthinfo *info = get_synthinfo_nospec(dp, dev); |
3336 |
+ |
3337 |
+- if (dev < 0 || dev >= dp->max_synthdev) |
3338 |
++ if (!info) |
3339 |
+ return -ENXIO; |
3340 |
+ |
3341 |
+- if (dp->synths[dev].is_midi) { |
3342 |
++ if (info->is_midi) { |
3343 |
+ struct midi_info minf; |
3344 |
+- snd_seq_oss_midi_make_info(dp, dp->synths[dev].midi_mapped, &minf); |
3345 |
++ snd_seq_oss_midi_make_info(dp, info->midi_mapped, &minf); |
3346 |
+ inf->synth_type = SYNTH_TYPE_MIDI; |
3347 |
+ inf->synth_subtype = 0; |
3348 |
+ inf->nr_voices = 16; |
3349 |
+diff --git a/sound/pci/hda/patch_realtek.c b/sound/pci/hda/patch_realtek.c |
3350 |
+index 972fd95f08ca..9637d0bbdeb5 100644 |
3351 |
+--- a/sound/pci/hda/patch_realtek.c |
3352 |
++++ b/sound/pci/hda/patch_realtek.c |
3353 |
+@@ -5436,6 +5436,9 @@ enum { |
3354 |
+ ALC298_FIXUP_TPT470_DOCK, |
3355 |
+ ALC255_FIXUP_DUMMY_LINEOUT_VERB, |
3356 |
+ ALC255_FIXUP_DELL_HEADSET_MIC, |
3357 |
++ ALC225_FIXUP_DELL_WYSE_AIO_MIC_NO_PRESENCE, |
3358 |
++ ALC225_FIXUP_WYSE_AUTO_MUTE, |
3359 |
++ ALC225_FIXUP_WYSE_DISABLE_MIC_VREF, |
3360 |
+ }; |
3361 |
+ |
3362 |
+ static const struct hda_fixup alc269_fixups[] = { |
3363 |
+@@ -6311,6 +6314,28 @@ static const struct hda_fixup alc269_fixups[] = { |
3364 |
+ .chained = true, |
3365 |
+ .chain_id = ALC269_FIXUP_HEADSET_MIC |
3366 |
+ }, |
3367 |
++ [ALC225_FIXUP_DELL_WYSE_AIO_MIC_NO_PRESENCE] = { |
3368 |
++ .type = HDA_FIXUP_PINS, |
3369 |
++ .v.pins = (const struct hda_pintbl[]) { |
3370 |
++ { 0x16, 0x01011020 }, /* Rear Line out */ |
3371 |
++ { 0x19, 0x01a1913c }, /* use as Front headset mic, without its own jack detect */ |
3372 |
++ { } |
3373 |
++ }, |
3374 |
++ .chained = true, |
3375 |
++ .chain_id = ALC225_FIXUP_WYSE_AUTO_MUTE |
3376 |
++ }, |
3377 |
++ [ALC225_FIXUP_WYSE_AUTO_MUTE] = { |
3378 |
++ .type = HDA_FIXUP_FUNC, |
3379 |
++ .v.func = alc_fixup_auto_mute_via_amp, |
3380 |
++ .chained = true, |
3381 |
++ .chain_id = ALC225_FIXUP_WYSE_DISABLE_MIC_VREF |
3382 |
++ }, |
3383 |
++ [ALC225_FIXUP_WYSE_DISABLE_MIC_VREF] = { |
3384 |
++ .type = HDA_FIXUP_FUNC, |
3385 |
++ .v.func = alc_fixup_disable_mic_vref, |
3386 |
++ .chained = true, |
3387 |
++ .chain_id = ALC269_FIXUP_HEADSET_MODE_NO_HP_MIC |
3388 |
++ }, |
3389 |
+ }; |
3390 |
+ |
3391 |
+ static const struct snd_pci_quirk alc269_fixup_tbl[] = { |
3392 |
+@@ -6369,6 +6394,8 @@ static const struct snd_pci_quirk alc269_fixup_tbl[] = { |
3393 |
+ SND_PCI_QUIRK(0x1028, 0x0871, "Dell Precision 3630", ALC255_FIXUP_DELL_HEADSET_MIC), |
3394 |
+ SND_PCI_QUIRK(0x1028, 0x0872, "Dell Precision 3630", ALC255_FIXUP_DELL_HEADSET_MIC), |
3395 |
+ SND_PCI_QUIRK(0x1028, 0x0873, "Dell Precision 3930", ALC255_FIXUP_DUMMY_LINEOUT_VERB), |
3396 |
++ SND_PCI_QUIRK(0x1028, 0x08ad, "Dell WYSE AIO", ALC225_FIXUP_DELL_WYSE_AIO_MIC_NO_PRESENCE), |
3397 |
++ SND_PCI_QUIRK(0x1028, 0x08ae, "Dell WYSE NB", ALC225_FIXUP_DELL1_MIC_NO_PRESENCE), |
3398 |
+ SND_PCI_QUIRK(0x1028, 0x0935, "Dell", ALC274_FIXUP_DELL_AIO_LINEOUT_VERB), |
3399 |
+ SND_PCI_QUIRK(0x1028, 0x164a, "Dell", ALC293_FIXUP_DELL1_MIC_NO_PRESENCE), |
3400 |
+ SND_PCI_QUIRK(0x1028, 0x164b, "Dell", ALC293_FIXUP_DELL1_MIC_NO_PRESENCE), |
3401 |
+diff --git a/tools/perf/util/intel-pt-decoder/intel-pt-decoder.c b/tools/perf/util/intel-pt-decoder/intel-pt-decoder.c |
3402 |
+index f3db68abbd9a..0bc3e6e93c31 100644 |
3403 |
+--- a/tools/perf/util/intel-pt-decoder/intel-pt-decoder.c |
3404 |
++++ b/tools/perf/util/intel-pt-decoder/intel-pt-decoder.c |
3405 |
+@@ -251,19 +251,15 @@ struct intel_pt_decoder *intel_pt_decoder_new(struct intel_pt_params *params) |
3406 |
+ if (!(decoder->tsc_ctc_ratio_n % decoder->tsc_ctc_ratio_d)) |
3407 |
+ decoder->tsc_ctc_mult = decoder->tsc_ctc_ratio_n / |
3408 |
+ decoder->tsc_ctc_ratio_d; |
3409 |
+- |
3410 |
+- /* |
3411 |
+- * Allow for timestamps appearing to backwards because a TSC |
3412 |
+- * packet has slipped past a MTC packet, so allow 2 MTC ticks |
3413 |
+- * or ... |
3414 |
+- */ |
3415 |
+- decoder->tsc_slip = multdiv(2 << decoder->mtc_shift, |
3416 |
+- decoder->tsc_ctc_ratio_n, |
3417 |
+- decoder->tsc_ctc_ratio_d); |
3418 |
+ } |
3419 |
+- /* ... or 0x100 paranoia */ |
3420 |
+- if (decoder->tsc_slip < 0x100) |
3421 |
+- decoder->tsc_slip = 0x100; |
3422 |
++ |
3423 |
++ /* |
3424 |
++ * A TSC packet can slip past MTC packets so that the timestamp appears |
3425 |
++ * to go backwards. One estimate is that can be up to about 40 CPU |
3426 |
++ * cycles, which is certainly less than 0x1000 TSC ticks, but accept |
3427 |
++ * slippage an order of magnitude more to be on the safe side. |
3428 |
++ */ |
3429 |
++ decoder->tsc_slip = 0x10000; |
3430 |
+ |
3431 |
+ intel_pt_log("timestamp: mtc_shift %u\n", decoder->mtc_shift); |
3432 |
+ intel_pt_log("timestamp: tsc_ctc_ratio_n %u\n", decoder->tsc_ctc_ratio_n); |
3433 |
+diff --git a/virt/kvm/kvm_main.c b/virt/kvm/kvm_main.c |
3434 |
+index 66cc315efa6d..a373c60ef1c0 100644 |
3435 |
+--- a/virt/kvm/kvm_main.c |
3436 |
++++ b/virt/kvm/kvm_main.c |
3437 |
+@@ -2812,6 +2812,9 @@ static long kvm_device_ioctl(struct file *filp, unsigned int ioctl, |
3438 |
+ { |
3439 |
+ struct kvm_device *dev = filp->private_data; |
3440 |
+ |
3441 |
++ if (dev->kvm->mm != current->mm) |
3442 |
++ return -EIO; |
3443 |
++ |
3444 |
+ switch (ioctl) { |
3445 |
+ case KVM_SET_DEVICE_ATTR: |
3446 |
+ return kvm_device_ioctl_attr(dev, dev->ops->set_attr, arg); |