1 |
commit: e847c6fdd3e89d7a472571c54c47bbf87ef0cd0c |
2 |
Author: Mike Pagano <mpagano <AT> gentoo <DOT> org> |
3 |
AuthorDate: Wed Oct 12 19:51:03 2016 +0000 |
4 |
Commit: Mike Pagano <mpagano <AT> gentoo <DOT> org> |
5 |
CommitDate: Wed Oct 12 19:51:03 2016 +0000 |
6 |
URL: https://gitweb.gentoo.org/proj/linux-patches.git/commit/?id=e847c6fd |
7 |
|
8 |
Linux patch 3.18.43 |
9 |
|
10 |
0000_README | 4 + |
11 |
1042_linux-3.18.43.patch | 3150 ++++++++++++++++++++++++++++++++++++++++++++++ |
12 |
2 files changed, 3154 insertions(+) |
13 |
|
14 |
diff --git a/0000_README b/0000_README |
15 |
index 7228605..cc667fc 100644 |
16 |
--- a/0000_README |
17 |
+++ b/0000_README |
18 |
@@ -211,6 +211,10 @@ Patch: 1041_linux-3.18.42.patch |
19 |
From: http://www.kernel.org |
20 |
Desc: Linux 3.18.42 |
21 |
|
22 |
+Patch: 1042_linux-3.18.43.patch |
23 |
+From: http://www.kernel.org |
24 |
+Desc: Linux 3.18.43 |
25 |
+ |
26 |
Patch: 1500_XATTR_USER_PREFIX.patch |
27 |
From: https://bugs.gentoo.org/show_bug.cgi?id=470644 |
28 |
Desc: Support for namespace user.pax.* on tmpfs. |
29 |
|
30 |
diff --git a/1042_linux-3.18.43.patch b/1042_linux-3.18.43.patch |
31 |
new file mode 100644 |
32 |
index 0000000..8356192 |
33 |
--- /dev/null |
34 |
+++ b/1042_linux-3.18.43.patch |
35 |
@@ -0,0 +1,3150 @@ |
36 |
+diff --git a/Makefile b/Makefile |
37 |
+index dafc1eade47e..28912c341bd8 100644 |
38 |
+--- a/Makefile |
39 |
++++ b/Makefile |
40 |
+@@ -1,6 +1,6 @@ |
41 |
+ VERSION = 3 |
42 |
+ PATCHLEVEL = 18 |
43 |
+-SUBLEVEL = 42 |
44 |
++SUBLEVEL = 43 |
45 |
+ EXTRAVERSION = |
46 |
+ NAME = Diseased Newt |
47 |
+ |
48 |
+diff --git a/arch/arc/include/asm/uaccess.h b/arch/arc/include/asm/uaccess.h |
49 |
+index 30c9baffa96f..08770c750696 100644 |
50 |
+--- a/arch/arc/include/asm/uaccess.h |
51 |
++++ b/arch/arc/include/asm/uaccess.h |
52 |
+@@ -83,7 +83,10 @@ |
53 |
+ "2: ;nop\n" \ |
54 |
+ " .section .fixup, \"ax\"\n" \ |
55 |
+ " .align 4\n" \ |
56 |
+- "3: mov %0, %3\n" \ |
57 |
++ "3: # return -EFAULT\n" \ |
58 |
++ " mov %0, %3\n" \ |
59 |
++ " # zero out dst ptr\n" \ |
60 |
++ " mov %1, 0\n" \ |
61 |
+ " j 2b\n" \ |
62 |
+ " .previous\n" \ |
63 |
+ " .section __ex_table, \"a\"\n" \ |
64 |
+@@ -101,7 +104,11 @@ |
65 |
+ "2: ;nop\n" \ |
66 |
+ " .section .fixup, \"ax\"\n" \ |
67 |
+ " .align 4\n" \ |
68 |
+- "3: mov %0, %3\n" \ |
69 |
++ "3: # return -EFAULT\n" \ |
70 |
++ " mov %0, %3\n" \ |
71 |
++ " # zero out dst ptr\n" \ |
72 |
++ " mov %1, 0\n" \ |
73 |
++ " mov %R1, 0\n" \ |
74 |
+ " j 2b\n" \ |
75 |
+ " .previous\n" \ |
76 |
+ " .section __ex_table, \"a\"\n" \ |
77 |
+diff --git a/arch/arm/boot/dts/kirkwood-ib62x0.dts b/arch/arm/boot/dts/kirkwood-ib62x0.dts |
78 |
+index bfa5edde179c..2c1e7f09205f 100644 |
79 |
+--- a/arch/arm/boot/dts/kirkwood-ib62x0.dts |
80 |
++++ b/arch/arm/boot/dts/kirkwood-ib62x0.dts |
81 |
+@@ -113,7 +113,7 @@ |
82 |
+ |
83 |
+ partition@e0000 { |
84 |
+ label = "u-boot environment"; |
85 |
+- reg = <0xe0000 0x100000>; |
86 |
++ reg = <0xe0000 0x20000>; |
87 |
+ }; |
88 |
+ |
89 |
+ partition@100000 { |
90 |
+diff --git a/arch/arm/kvm/arm.c b/arch/arm/kvm/arm.c |
91 |
+index e8193b987313..6c3dc428a881 100644 |
92 |
+--- a/arch/arm/kvm/arm.c |
93 |
++++ b/arch/arm/kvm/arm.c |
94 |
+@@ -153,8 +153,6 @@ void kvm_arch_destroy_vm(struct kvm *kvm) |
95 |
+ { |
96 |
+ int i; |
97 |
+ |
98 |
+- kvm_free_stage2_pgd(kvm); |
99 |
+- |
100 |
+ for (i = 0; i < KVM_MAX_VCPUS; ++i) { |
101 |
+ if (kvm->vcpus[i]) { |
102 |
+ kvm_arch_vcpu_free(kvm->vcpus[i]); |
103 |
+diff --git a/arch/arm/kvm/mmu.c b/arch/arm/kvm/mmu.c |
104 |
+index 0310b03697e0..feda3ff185e9 100644 |
105 |
+--- a/arch/arm/kvm/mmu.c |
106 |
++++ b/arch/arm/kvm/mmu.c |
107 |
+@@ -1493,6 +1493,7 @@ void kvm_arch_memslots_updated(struct kvm *kvm) |
108 |
+ |
109 |
+ void kvm_arch_flush_shadow_all(struct kvm *kvm) |
110 |
+ { |
111 |
++ kvm_free_stage2_pgd(kvm); |
112 |
+ } |
113 |
+ |
114 |
+ void kvm_arch_flush_shadow_memslot(struct kvm *kvm, |
115 |
+diff --git a/arch/arm/mach-imx/pm-imx6.c b/arch/arm/mach-imx/pm-imx6.c |
116 |
+index 5c3af8f993d0..bdd1d9061759 100644 |
117 |
+--- a/arch/arm/mach-imx/pm-imx6.c |
118 |
++++ b/arch/arm/mach-imx/pm-imx6.c |
119 |
+@@ -293,7 +293,7 @@ int imx6q_set_lpm(enum mxc_cpu_pwr_mode mode) |
120 |
+ val |= 0x3 << BP_CLPCR_STBY_COUNT; |
121 |
+ val |= BM_CLPCR_VSTBY; |
122 |
+ val |= BM_CLPCR_SBYOS; |
123 |
+- if (cpu_is_imx6sl()) |
124 |
++ if (cpu_is_imx6sl() || cpu_is_imx6sx()) |
125 |
+ val |= BM_CLPCR_BYPASS_PMIC_READY; |
126 |
+ if (cpu_is_imx6sl() || cpu_is_imx6sx()) |
127 |
+ val |= BM_CLPCR_BYP_MMDC_CH0_LPM_HS; |
128 |
+diff --git a/arch/arm/mach-omap2/omap_hwmod_3xxx_data.c b/arch/arm/mach-omap2/omap_hwmod_3xxx_data.c |
129 |
+index 2a78b093c0ce..e74ddb373131 100644 |
130 |
+--- a/arch/arm/mach-omap2/omap_hwmod_3xxx_data.c |
131 |
++++ b/arch/arm/mach-omap2/omap_hwmod_3xxx_data.c |
132 |
+@@ -724,8 +724,20 @@ static struct omap_hwmod omap3xxx_dss_dispc_hwmod = { |
133 |
+ * display serial interface controller |
134 |
+ */ |
135 |
+ |
136 |
++static struct omap_hwmod_class_sysconfig omap3xxx_dsi_sysc = { |
137 |
++ .rev_offs = 0x0000, |
138 |
++ .sysc_offs = 0x0010, |
139 |
++ .syss_offs = 0x0014, |
140 |
++ .sysc_flags = (SYSC_HAS_AUTOIDLE | SYSC_HAS_CLOCKACTIVITY | |
141 |
++ SYSC_HAS_ENAWAKEUP | SYSC_HAS_SIDLEMODE | |
142 |
++ SYSC_HAS_SOFTRESET | SYSS_HAS_RESET_STATUS), |
143 |
++ .idlemodes = (SIDLE_FORCE | SIDLE_NO | SIDLE_SMART), |
144 |
++ .sysc_fields = &omap_hwmod_sysc_type1, |
145 |
++}; |
146 |
++ |
147 |
+ static struct omap_hwmod_class omap3xxx_dsi_hwmod_class = { |
148 |
+ .name = "dsi", |
149 |
++ .sysc = &omap3xxx_dsi_sysc, |
150 |
+ }; |
151 |
+ |
152 |
+ static struct omap_hwmod_irq_info omap3xxx_dsi1_irqs[] = { |
153 |
+diff --git a/arch/arm/plat-orion/gpio.c b/arch/arm/plat-orion/gpio.c |
154 |
+index e048f6198d68..14f6e647c739 100644 |
155 |
+--- a/arch/arm/plat-orion/gpio.c |
156 |
++++ b/arch/arm/plat-orion/gpio.c |
157 |
+@@ -505,9 +505,9 @@ static void orion_gpio_unmask_irq(struct irq_data *d) |
158 |
+ u32 mask = d->mask; |
159 |
+ |
160 |
+ irq_gc_lock(gc); |
161 |
+- reg_val = irq_reg_readl(gc->reg_base + ct->regs.mask); |
162 |
++ reg_val = irq_reg_readl(gc, ct->regs.mask); |
163 |
+ reg_val |= mask; |
164 |
+- irq_reg_writel(reg_val, gc->reg_base + ct->regs.mask); |
165 |
++ irq_reg_writel(gc, reg_val, ct->regs.mask); |
166 |
+ irq_gc_unlock(gc); |
167 |
+ } |
168 |
+ |
169 |
+@@ -519,9 +519,9 @@ static void orion_gpio_mask_irq(struct irq_data *d) |
170 |
+ u32 reg_val; |
171 |
+ |
172 |
+ irq_gc_lock(gc); |
173 |
+- reg_val = irq_reg_readl(gc->reg_base + ct->regs.mask); |
174 |
++ reg_val = irq_reg_readl(gc, ct->regs.mask); |
175 |
+ reg_val &= ~mask; |
176 |
+- irq_reg_writel(reg_val, gc->reg_base + ct->regs.mask); |
177 |
++ irq_reg_writel(gc, reg_val, ct->regs.mask); |
178 |
+ irq_gc_unlock(gc); |
179 |
+ } |
180 |
+ |
181 |
+diff --git a/arch/arm64/crypto/aes-glue.c b/arch/arm64/crypto/aes-glue.c |
182 |
+index 5f63a791b2fb..31d014f01574 100644 |
183 |
+--- a/arch/arm64/crypto/aes-glue.c |
184 |
++++ b/arch/arm64/crypto/aes-glue.c |
185 |
+@@ -205,7 +205,7 @@ static int ctr_encrypt(struct blkcipher_desc *desc, struct scatterlist *dst, |
186 |
+ err = blkcipher_walk_done(desc, &walk, |
187 |
+ walk.nbytes % AES_BLOCK_SIZE); |
188 |
+ } |
189 |
+- if (nbytes) { |
190 |
++ if (walk.nbytes % AES_BLOCK_SIZE) { |
191 |
+ u8 *tdst = walk.dst.virt.addr + blocks * AES_BLOCK_SIZE; |
192 |
+ u8 *tsrc = walk.src.virt.addr + blocks * AES_BLOCK_SIZE; |
193 |
+ u8 __aligned(8) tail[AES_BLOCK_SIZE]; |
194 |
+diff --git a/arch/arm64/include/asm/spinlock.h b/arch/arm64/include/asm/spinlock.h |
195 |
+index c45b7b1b7197..3c0bb9b303e8 100644 |
196 |
+--- a/arch/arm64/include/asm/spinlock.h |
197 |
++++ b/arch/arm64/include/asm/spinlock.h |
198 |
+@@ -231,4 +231,14 @@ static inline int arch_read_trylock(arch_rwlock_t *rw) |
199 |
+ #define arch_read_relax(lock) cpu_relax() |
200 |
+ #define arch_write_relax(lock) cpu_relax() |
201 |
+ |
202 |
++/* |
203 |
++ * Accesses appearing in program order before a spin_lock() operation |
204 |
++ * can be reordered with accesses inside the critical section, by virtue |
205 |
++ * of arch_spin_lock being constructed using acquire semantics. |
206 |
++ * |
207 |
++ * In cases where this is problematic (e.g. try_to_wake_up), an |
208 |
++ * smp_mb__before_spinlock() can restore the required ordering. |
209 |
++ */ |
210 |
++#define smp_mb__before_spinlock() smp_mb() |
211 |
++ |
212 |
+ #endif /* __ASM_SPINLOCK_H */ |
213 |
+diff --git a/arch/avr32/include/asm/uaccess.h b/arch/avr32/include/asm/uaccess.h |
214 |
+index 245b2ee213c9..a0a9b8c31041 100644 |
215 |
+--- a/arch/avr32/include/asm/uaccess.h |
216 |
++++ b/arch/avr32/include/asm/uaccess.h |
217 |
+@@ -74,7 +74,7 @@ extern __kernel_size_t __copy_user(void *to, const void *from, |
218 |
+ |
219 |
+ extern __kernel_size_t copy_to_user(void __user *to, const void *from, |
220 |
+ __kernel_size_t n); |
221 |
+-extern __kernel_size_t copy_from_user(void *to, const void __user *from, |
222 |
++extern __kernel_size_t ___copy_from_user(void *to, const void __user *from, |
223 |
+ __kernel_size_t n); |
224 |
+ |
225 |
+ static inline __kernel_size_t __copy_to_user(void __user *to, const void *from, |
226 |
+@@ -88,6 +88,15 @@ static inline __kernel_size_t __copy_from_user(void *to, |
227 |
+ { |
228 |
+ return __copy_user(to, (const void __force *)from, n); |
229 |
+ } |
230 |
++static inline __kernel_size_t copy_from_user(void *to, |
231 |
++ const void __user *from, |
232 |
++ __kernel_size_t n) |
233 |
++{ |
234 |
++ size_t res = ___copy_from_user(to, from, n); |
235 |
++ if (unlikely(res)) |
236 |
++ memset(to + (n - res), 0, res); |
237 |
++ return res; |
238 |
++} |
239 |
+ |
240 |
+ #define __copy_to_user_inatomic __copy_to_user |
241 |
+ #define __copy_from_user_inatomic __copy_from_user |
242 |
+diff --git a/arch/avr32/kernel/avr32_ksyms.c b/arch/avr32/kernel/avr32_ksyms.c |
243 |
+index d93ead02daed..7c6cf14f0985 100644 |
244 |
+--- a/arch/avr32/kernel/avr32_ksyms.c |
245 |
++++ b/arch/avr32/kernel/avr32_ksyms.c |
246 |
+@@ -36,7 +36,7 @@ EXPORT_SYMBOL(copy_page); |
247 |
+ /* |
248 |
+ * Userspace access stuff. |
249 |
+ */ |
250 |
+-EXPORT_SYMBOL(copy_from_user); |
251 |
++EXPORT_SYMBOL(___copy_from_user); |
252 |
+ EXPORT_SYMBOL(copy_to_user); |
253 |
+ EXPORT_SYMBOL(__copy_user); |
254 |
+ EXPORT_SYMBOL(strncpy_from_user); |
255 |
+diff --git a/arch/avr32/lib/copy_user.S b/arch/avr32/lib/copy_user.S |
256 |
+index ea59c04b07de..075373471da1 100644 |
257 |
+--- a/arch/avr32/lib/copy_user.S |
258 |
++++ b/arch/avr32/lib/copy_user.S |
259 |
+@@ -23,13 +23,13 @@ |
260 |
+ */ |
261 |
+ .text |
262 |
+ .align 1 |
263 |
+- .global copy_from_user |
264 |
+- .type copy_from_user, @function |
265 |
+-copy_from_user: |
266 |
++ .global ___copy_from_user |
267 |
++ .type ___copy_from_user, @function |
268 |
++___copy_from_user: |
269 |
+ branch_if_kernel r8, __copy_user |
270 |
+ ret_if_privileged r8, r11, r10, r10 |
271 |
+ rjmp __copy_user |
272 |
+- .size copy_from_user, . - copy_from_user |
273 |
++ .size ___copy_from_user, . - ___copy_from_user |
274 |
+ |
275 |
+ .global copy_to_user |
276 |
+ .type copy_to_user, @function |
277 |
+diff --git a/arch/blackfin/include/asm/uaccess.h b/arch/blackfin/include/asm/uaccess.h |
278 |
+index 57701c3b8a59..a992a788409c 100644 |
279 |
+--- a/arch/blackfin/include/asm/uaccess.h |
280 |
++++ b/arch/blackfin/include/asm/uaccess.h |
281 |
+@@ -177,11 +177,12 @@ static inline int bad_user_access_length(void) |
282 |
+ static inline unsigned long __must_check |
283 |
+ copy_from_user(void *to, const void __user *from, unsigned long n) |
284 |
+ { |
285 |
+- if (access_ok(VERIFY_READ, from, n)) |
286 |
++ if (likely(access_ok(VERIFY_READ, from, n))) { |
287 |
+ memcpy(to, (const void __force *)from, n); |
288 |
+- else |
289 |
+- return n; |
290 |
+- return 0; |
291 |
++ return 0; |
292 |
++ } |
293 |
++ memset(to, 0, n); |
294 |
++ return n; |
295 |
+ } |
296 |
+ |
297 |
+ static inline unsigned long __must_check |
298 |
+diff --git a/arch/frv/include/asm/uaccess.h b/arch/frv/include/asm/uaccess.h |
299 |
+index 3ac9a59d65d4..87d9e34c5df8 100644 |
300 |
+--- a/arch/frv/include/asm/uaccess.h |
301 |
++++ b/arch/frv/include/asm/uaccess.h |
302 |
+@@ -263,19 +263,25 @@ do { \ |
303 |
+ extern long __memset_user(void *dst, unsigned long count); |
304 |
+ extern long __memcpy_user(void *dst, const void *src, unsigned long count); |
305 |
+ |
306 |
+-#define clear_user(dst,count) __memset_user(____force(dst), (count)) |
307 |
++#define __clear_user(dst,count) __memset_user(____force(dst), (count)) |
308 |
+ #define __copy_from_user_inatomic(to, from, n) __memcpy_user((to), ____force(from), (n)) |
309 |
+ #define __copy_to_user_inatomic(to, from, n) __memcpy_user(____force(to), (from), (n)) |
310 |
+ |
311 |
+ #else |
312 |
+ |
313 |
+-#define clear_user(dst,count) (memset(____force(dst), 0, (count)), 0) |
314 |
++#define __clear_user(dst,count) (memset(____force(dst), 0, (count)), 0) |
315 |
+ #define __copy_from_user_inatomic(to, from, n) (memcpy((to), ____force(from), (n)), 0) |
316 |
+ #define __copy_to_user_inatomic(to, from, n) (memcpy(____force(to), (from), (n)), 0) |
317 |
+ |
318 |
+ #endif |
319 |
+ |
320 |
+-#define __clear_user clear_user |
321 |
++static inline unsigned long __must_check |
322 |
++clear_user(void __user *to, unsigned long n) |
323 |
++{ |
324 |
++ if (likely(__access_ok(to, n))) |
325 |
++ n = __clear_user(to, n); |
326 |
++ return n; |
327 |
++} |
328 |
+ |
329 |
+ static inline unsigned long __must_check |
330 |
+ __copy_to_user(void __user *to, const void *from, unsigned long n) |
331 |
+diff --git a/arch/hexagon/include/asm/cacheflush.h b/arch/hexagon/include/asm/cacheflush.h |
332 |
+index 49e0896ec240..b86f9f300e94 100644 |
333 |
+--- a/arch/hexagon/include/asm/cacheflush.h |
334 |
++++ b/arch/hexagon/include/asm/cacheflush.h |
335 |
+@@ -21,10 +21,7 @@ |
336 |
+ #ifndef _ASM_CACHEFLUSH_H |
337 |
+ #define _ASM_CACHEFLUSH_H |
338 |
+ |
339 |
+-#include <linux/cache.h> |
340 |
+-#include <linux/mm.h> |
341 |
+-#include <asm/string.h> |
342 |
+-#include <asm-generic/cacheflush.h> |
343 |
++#include <linux/mm_types.h> |
344 |
+ |
345 |
+ /* Cache flushing: |
346 |
+ * |
347 |
+@@ -41,6 +38,20 @@ |
348 |
+ #define LINESIZE 32 |
349 |
+ #define LINEBITS 5 |
350 |
+ |
351 |
++#define flush_cache_all() do { } while (0) |
352 |
++#define flush_cache_mm(mm) do { } while (0) |
353 |
++#define flush_cache_dup_mm(mm) do { } while (0) |
354 |
++#define flush_cache_range(vma, start, end) do { } while (0) |
355 |
++#define flush_cache_page(vma, vmaddr, pfn) do { } while (0) |
356 |
++#define ARCH_IMPLEMENTS_FLUSH_DCACHE_PAGE 0 |
357 |
++#define flush_dcache_page(page) do { } while (0) |
358 |
++#define flush_dcache_mmap_lock(mapping) do { } while (0) |
359 |
++#define flush_dcache_mmap_unlock(mapping) do { } while (0) |
360 |
++#define flush_icache_page(vma, pg) do { } while (0) |
361 |
++#define flush_icache_user_range(vma, pg, adr, len) do { } while (0) |
362 |
++#define flush_cache_vmap(start, end) do { } while (0) |
363 |
++#define flush_cache_vunmap(start, end) do { } while (0) |
364 |
++ |
365 |
+ /* |
366 |
+ * Flush Dcache range through current map. |
367 |
+ */ |
368 |
+@@ -49,7 +60,6 @@ extern void flush_dcache_range(unsigned long start, unsigned long end); |
369 |
+ /* |
370 |
+ * Flush Icache range through current map. |
371 |
+ */ |
372 |
+-#undef flush_icache_range |
373 |
+ extern void flush_icache_range(unsigned long start, unsigned long end); |
374 |
+ |
375 |
+ /* |
376 |
+@@ -79,19 +89,11 @@ static inline void update_mmu_cache(struct vm_area_struct *vma, |
377 |
+ /* generic_ptrace_pokedata doesn't wind up here, does it? */ |
378 |
+ } |
379 |
+ |
380 |
+-#undef copy_to_user_page |
381 |
+-static inline void copy_to_user_page(struct vm_area_struct *vma, |
382 |
+- struct page *page, |
383 |
+- unsigned long vaddr, |
384 |
+- void *dst, void *src, int len) |
385 |
+-{ |
386 |
+- memcpy(dst, src, len); |
387 |
+- if (vma->vm_flags & VM_EXEC) { |
388 |
+- flush_icache_range((unsigned long) dst, |
389 |
+- (unsigned long) dst + len); |
390 |
+- } |
391 |
+-} |
392 |
++void copy_to_user_page(struct vm_area_struct *vma, struct page *page, |
393 |
++ unsigned long vaddr, void *dst, void *src, int len); |
394 |
+ |
395 |
++#define copy_from_user_page(vma, page, vaddr, dst, src, len) \ |
396 |
++ memcpy(dst, src, len) |
397 |
+ |
398 |
+ extern void hexagon_inv_dcache_range(unsigned long start, unsigned long end); |
399 |
+ extern void hexagon_clean_dcache_range(unsigned long start, unsigned long end); |
400 |
+diff --git a/arch/hexagon/include/asm/io.h b/arch/hexagon/include/asm/io.h |
401 |
+index 70298996e9b2..66f5e9a61efc 100644 |
402 |
+--- a/arch/hexagon/include/asm/io.h |
403 |
++++ b/arch/hexagon/include/asm/io.h |
404 |
+@@ -24,14 +24,9 @@ |
405 |
+ #ifdef __KERNEL__ |
406 |
+ |
407 |
+ #include <linux/types.h> |
408 |
+-#include <linux/delay.h> |
409 |
+-#include <linux/vmalloc.h> |
410 |
+-#include <asm/string.h> |
411 |
+-#include <asm/mem-layout.h> |
412 |
+ #include <asm/iomap.h> |
413 |
+ #include <asm/page.h> |
414 |
+ #include <asm/cacheflush.h> |
415 |
+-#include <asm/tlbflush.h> |
416 |
+ |
417 |
+ /* |
418 |
+ * We don't have PCI yet. |
419 |
+diff --git a/arch/hexagon/include/asm/uaccess.h b/arch/hexagon/include/asm/uaccess.h |
420 |
+index e4127e4d6a5b..25fc9049db8a 100644 |
421 |
+--- a/arch/hexagon/include/asm/uaccess.h |
422 |
++++ b/arch/hexagon/include/asm/uaccess.h |
423 |
+@@ -102,7 +102,8 @@ static inline long hexagon_strncpy_from_user(char *dst, const char __user *src, |
424 |
+ { |
425 |
+ long res = __strnlen_user(src, n); |
426 |
+ |
427 |
+- /* return from strnlen can't be zero -- that would be rubbish. */ |
428 |
++ if (unlikely(!res)) |
429 |
++ return -EFAULT; |
430 |
+ |
431 |
+ if (res > n) { |
432 |
+ copy_from_user(dst, src, n); |
433 |
+diff --git a/arch/hexagon/kernel/setup.c b/arch/hexagon/kernel/setup.c |
434 |
+index 0e7c1dbb37b2..6981949f5df3 100644 |
435 |
+--- a/arch/hexagon/kernel/setup.c |
436 |
++++ b/arch/hexagon/kernel/setup.c |
437 |
+@@ -19,6 +19,7 @@ |
438 |
+ */ |
439 |
+ |
440 |
+ #include <linux/init.h> |
441 |
++#include <linux/delay.h> |
442 |
+ #include <linux/bootmem.h> |
443 |
+ #include <linux/mmzone.h> |
444 |
+ #include <linux/mm.h> |
445 |
+diff --git a/arch/hexagon/mm/cache.c b/arch/hexagon/mm/cache.c |
446 |
+index 0c76c802e31c..a7c6d827d8b6 100644 |
447 |
+--- a/arch/hexagon/mm/cache.c |
448 |
++++ b/arch/hexagon/mm/cache.c |
449 |
+@@ -127,3 +127,13 @@ void flush_cache_all_hexagon(void) |
450 |
+ local_irq_restore(flags); |
451 |
+ mb(); |
452 |
+ } |
453 |
++ |
454 |
++void copy_to_user_page(struct vm_area_struct *vma, struct page *page, |
455 |
++ unsigned long vaddr, void *dst, void *src, int len) |
456 |
++{ |
457 |
++ memcpy(dst, src, len); |
458 |
++ if (vma->vm_flags & VM_EXEC) { |
459 |
++ flush_icache_range((unsigned long) dst, |
460 |
++ (unsigned long) dst + len); |
461 |
++ } |
462 |
++} |
463 |
+diff --git a/arch/hexagon/mm/ioremap.c b/arch/hexagon/mm/ioremap.c |
464 |
+index 5905fd5f97f6..d27d67224046 100644 |
465 |
+--- a/arch/hexagon/mm/ioremap.c |
466 |
++++ b/arch/hexagon/mm/ioremap.c |
467 |
+@@ -20,6 +20,7 @@ |
468 |
+ |
469 |
+ #include <linux/io.h> |
470 |
+ #include <linux/vmalloc.h> |
471 |
++#include <linux/mm.h> |
472 |
+ |
473 |
+ void __iomem *ioremap_nocache(unsigned long phys_addr, unsigned long size) |
474 |
+ { |
475 |
+diff --git a/arch/ia64/include/asm/uaccess.h b/arch/ia64/include/asm/uaccess.h |
476 |
+index 449c8c0fa2bd..810926c56e31 100644 |
477 |
+--- a/arch/ia64/include/asm/uaccess.h |
478 |
++++ b/arch/ia64/include/asm/uaccess.h |
479 |
+@@ -262,17 +262,15 @@ __copy_from_user (void *to, const void __user *from, unsigned long count) |
480 |
+ __cu_len; \ |
481 |
+ }) |
482 |
+ |
483 |
+-#define copy_from_user(to, from, n) \ |
484 |
+-({ \ |
485 |
+- void *__cu_to = (to); \ |
486 |
+- const void __user *__cu_from = (from); \ |
487 |
+- long __cu_len = (n); \ |
488 |
+- \ |
489 |
+- __chk_user_ptr(__cu_from); \ |
490 |
+- if (__access_ok(__cu_from, __cu_len, get_fs())) \ |
491 |
+- __cu_len = __copy_user((__force void __user *) __cu_to, __cu_from, __cu_len); \ |
492 |
+- __cu_len; \ |
493 |
+-}) |
494 |
++static inline unsigned long |
495 |
++copy_from_user(void *to, const void __user *from, unsigned long n) |
496 |
++{ |
497 |
++ if (likely(__access_ok(from, n, get_fs()))) |
498 |
++ n = __copy_user((__force void __user *) to, from, n); |
499 |
++ else |
500 |
++ memset(to, 0, n); |
501 |
++ return n; |
502 |
++} |
503 |
+ |
504 |
+ #define __copy_in_user(to, from, size) __copy_user((to), (from), (size)) |
505 |
+ |
506 |
+diff --git a/arch/m32r/include/asm/uaccess.h b/arch/m32r/include/asm/uaccess.h |
507 |
+index 84fe7ba53035..c393e8f57cf7 100644 |
508 |
+--- a/arch/m32r/include/asm/uaccess.h |
509 |
++++ b/arch/m32r/include/asm/uaccess.h |
510 |
+@@ -215,7 +215,7 @@ extern int fixup_exception(struct pt_regs *regs); |
511 |
+ #define __get_user_nocheck(x,ptr,size) \ |
512 |
+ ({ \ |
513 |
+ long __gu_err = 0; \ |
514 |
+- unsigned long __gu_val; \ |
515 |
++ unsigned long __gu_val = 0; \ |
516 |
+ might_fault(); \ |
517 |
+ __get_user_size(__gu_val,(ptr),(size),__gu_err); \ |
518 |
+ (x) = (__typeof__(*(ptr)))__gu_val; \ |
519 |
+diff --git a/arch/metag/include/asm/uaccess.h b/arch/metag/include/asm/uaccess.h |
520 |
+index 0748b0a97986..7841f2290385 100644 |
521 |
+--- a/arch/metag/include/asm/uaccess.h |
522 |
++++ b/arch/metag/include/asm/uaccess.h |
523 |
+@@ -199,8 +199,9 @@ extern unsigned long __must_check __copy_user_zeroing(void *to, |
524 |
+ static inline unsigned long |
525 |
+ copy_from_user(void *to, const void __user *from, unsigned long n) |
526 |
+ { |
527 |
+- if (access_ok(VERIFY_READ, from, n)) |
528 |
++ if (likely(access_ok(VERIFY_READ, from, n))) |
529 |
+ return __copy_user_zeroing(to, from, n); |
530 |
++ memset(to, 0, n); |
531 |
+ return n; |
532 |
+ } |
533 |
+ |
534 |
+diff --git a/arch/microblaze/include/asm/uaccess.h b/arch/microblaze/include/asm/uaccess.h |
535 |
+index 59a89a64a865..336be7716972 100644 |
536 |
+--- a/arch/microblaze/include/asm/uaccess.h |
537 |
++++ b/arch/microblaze/include/asm/uaccess.h |
538 |
+@@ -226,7 +226,7 @@ extern long __user_bad(void); |
539 |
+ |
540 |
+ #define __get_user(x, ptr) \ |
541 |
+ ({ \ |
542 |
+- unsigned long __gu_val; \ |
543 |
++ unsigned long __gu_val = 0; \ |
544 |
+ /*unsigned long __gu_ptr = (unsigned long)(ptr);*/ \ |
545 |
+ long __gu_err; \ |
546 |
+ switch (sizeof(*(ptr))) { \ |
547 |
+@@ -371,10 +371,13 @@ extern long __user_bad(void); |
548 |
+ static inline long copy_from_user(void *to, |
549 |
+ const void __user *from, unsigned long n) |
550 |
+ { |
551 |
++ unsigned long res = n; |
552 |
+ might_fault(); |
553 |
+- if (access_ok(VERIFY_READ, from, n)) |
554 |
+- return __copy_from_user(to, from, n); |
555 |
+- return n; |
556 |
++ if (likely(access_ok(VERIFY_READ, from, n))) |
557 |
++ res = __copy_from_user(to, from, n); |
558 |
++ if (unlikely(res)) |
559 |
++ memset(to + (n - res), 0, res); |
560 |
++ return res; |
561 |
+ } |
562 |
+ |
563 |
+ #define __copy_to_user(to, from, n) \ |
564 |
+diff --git a/arch/mips/include/asm/asmmacro.h b/arch/mips/include/asm/asmmacro.h |
565 |
+index 71fef0af9c9a..a7ef4fba9774 100644 |
566 |
+--- a/arch/mips/include/asm/asmmacro.h |
567 |
++++ b/arch/mips/include/asm/asmmacro.h |
568 |
+@@ -134,6 +134,7 @@ |
569 |
+ ldc1 $f28, THREAD_FPR28_LS64(\thread) |
570 |
+ ldc1 $f30, THREAD_FPR30_LS64(\thread) |
571 |
+ ctc1 \tmp, fcr31 |
572 |
++ .set pop |
573 |
+ .endm |
574 |
+ |
575 |
+ .macro fpu_restore_16odd thread |
576 |
+diff --git a/arch/mips/include/asm/mach-paravirt/kernel-entry-init.h b/arch/mips/include/asm/mach-paravirt/kernel-entry-init.h |
577 |
+index 2f82bfa3a773..c9f5769dfc8f 100644 |
578 |
+--- a/arch/mips/include/asm/mach-paravirt/kernel-entry-init.h |
579 |
++++ b/arch/mips/include/asm/mach-paravirt/kernel-entry-init.h |
580 |
+@@ -11,11 +11,13 @@ |
581 |
+ #define CP0_EBASE $15, 1 |
582 |
+ |
583 |
+ .macro kernel_entry_setup |
584 |
++#ifdef CONFIG_SMP |
585 |
+ mfc0 t0, CP0_EBASE |
586 |
+ andi t0, t0, 0x3ff # CPUNum |
587 |
+ beqz t0, 1f |
588 |
+ # CPUs other than zero goto smp_bootstrap |
589 |
+ j smp_bootstrap |
590 |
++#endif /* CONFIG_SMP */ |
591 |
+ |
592 |
+ 1: |
593 |
+ .endm |
594 |
+diff --git a/arch/mips/include/asm/uaccess.h b/arch/mips/include/asm/uaccess.h |
595 |
+index 22a5624e2fd2..953a75a8a8d2 100644 |
596 |
+--- a/arch/mips/include/asm/uaccess.h |
597 |
++++ b/arch/mips/include/asm/uaccess.h |
598 |
+@@ -14,6 +14,7 @@ |
599 |
+ #include <linux/kernel.h> |
600 |
+ #include <linux/errno.h> |
601 |
+ #include <linux/thread_info.h> |
602 |
++#include <linux/string.h> |
603 |
+ #include <asm/asm-eva.h> |
604 |
+ |
605 |
+ /* |
606 |
+@@ -1136,6 +1137,8 @@ extern size_t __copy_in_user_eva(void *__to, const void *__from, size_t __n); |
607 |
+ __cu_len = __invoke_copy_from_user(__cu_to, \ |
608 |
+ __cu_from, \ |
609 |
+ __cu_len); \ |
610 |
++ } else { \ |
611 |
++ memset(__cu_to, 0, __cu_len); \ |
612 |
+ } \ |
613 |
+ } \ |
614 |
+ __cu_len; \ |
615 |
+diff --git a/arch/mips/kvm/tlb.c b/arch/mips/kvm/tlb.c |
616 |
+index bbcd82242059..b814f659f43d 100644 |
617 |
+--- a/arch/mips/kvm/tlb.c |
618 |
++++ b/arch/mips/kvm/tlb.c |
619 |
+@@ -152,7 +152,7 @@ static int kvm_mips_map_page(struct kvm *kvm, gfn_t gfn) |
620 |
+ srcu_idx = srcu_read_lock(&kvm->srcu); |
621 |
+ pfn = kvm_mips_gfn_to_pfn(kvm, gfn); |
622 |
+ |
623 |
+- if (kvm_mips_is_error_pfn(pfn)) { |
624 |
++ if (is_error_noslot_pfn(pfn)) { |
625 |
+ kvm_err("Couldn't get pfn for gfn %#" PRIx64 "!\n", gfn); |
626 |
+ err = -EFAULT; |
627 |
+ goto out; |
628 |
+diff --git a/arch/mn10300/include/asm/uaccess.h b/arch/mn10300/include/asm/uaccess.h |
629 |
+index 537278746a15..4af43d9ba495 100644 |
630 |
+--- a/arch/mn10300/include/asm/uaccess.h |
631 |
++++ b/arch/mn10300/include/asm/uaccess.h |
632 |
+@@ -181,6 +181,7 @@ struct __large_struct { unsigned long buf[100]; }; |
633 |
+ "2:\n" \ |
634 |
+ " .section .fixup,\"ax\"\n" \ |
635 |
+ "3:\n\t" \ |
636 |
++ " mov 0,%1\n" \ |
637 |
+ " mov %3,%0\n" \ |
638 |
+ " jmp 2b\n" \ |
639 |
+ " .previous\n" \ |
640 |
+diff --git a/arch/mn10300/lib/usercopy.c b/arch/mn10300/lib/usercopy.c |
641 |
+index 7826e6c364e7..ce8899e5e171 100644 |
642 |
+--- a/arch/mn10300/lib/usercopy.c |
643 |
++++ b/arch/mn10300/lib/usercopy.c |
644 |
+@@ -9,7 +9,7 @@ |
645 |
+ * as published by the Free Software Foundation; either version |
646 |
+ * 2 of the Licence, or (at your option) any later version. |
647 |
+ */ |
648 |
+-#include <asm/uaccess.h> |
649 |
++#include <linux/uaccess.h> |
650 |
+ |
651 |
+ unsigned long |
652 |
+ __generic_copy_to_user(void *to, const void *from, unsigned long n) |
653 |
+@@ -24,6 +24,8 @@ __generic_copy_from_user(void *to, const void *from, unsigned long n) |
654 |
+ { |
655 |
+ if (access_ok(VERIFY_READ, from, n)) |
656 |
+ __copy_user_zeroing(to, from, n); |
657 |
++ else |
658 |
++ memset(to, 0, n); |
659 |
+ return n; |
660 |
+ } |
661 |
+ |
662 |
+diff --git a/arch/openrisc/include/asm/uaccess.h b/arch/openrisc/include/asm/uaccess.h |
663 |
+index ab2e7a198a4c..d441480a4af4 100644 |
664 |
+--- a/arch/openrisc/include/asm/uaccess.h |
665 |
++++ b/arch/openrisc/include/asm/uaccess.h |
666 |
+@@ -273,28 +273,20 @@ __copy_tofrom_user(void *to, const void *from, unsigned long size); |
667 |
+ static inline unsigned long |
668 |
+ copy_from_user(void *to, const void *from, unsigned long n) |
669 |
+ { |
670 |
+- unsigned long over; |
671 |
+- |
672 |
+- if (access_ok(VERIFY_READ, from, n)) |
673 |
+- return __copy_tofrom_user(to, from, n); |
674 |
+- if ((unsigned long)from < TASK_SIZE) { |
675 |
+- over = (unsigned long)from + n - TASK_SIZE; |
676 |
+- return __copy_tofrom_user(to, from, n - over) + over; |
677 |
+- } |
678 |
+- return n; |
679 |
++ unsigned long res = n; |
680 |
++ |
681 |
++ if (likely(access_ok(VERIFY_READ, from, n))) |
682 |
++ res = __copy_tofrom_user(to, from, n); |
683 |
++ if (unlikely(res)) |
684 |
++ memset(to + (n - res), 0, res); |
685 |
++ return res; |
686 |
+ } |
687 |
+ |
688 |
+ static inline unsigned long |
689 |
+ copy_to_user(void *to, const void *from, unsigned long n) |
690 |
+ { |
691 |
+- unsigned long over; |
692 |
+- |
693 |
+- if (access_ok(VERIFY_WRITE, to, n)) |
694 |
+- return __copy_tofrom_user(to, from, n); |
695 |
+- if ((unsigned long)to < TASK_SIZE) { |
696 |
+- over = (unsigned long)to + n - TASK_SIZE; |
697 |
+- return __copy_tofrom_user(to, from, n - over) + over; |
698 |
+- } |
699 |
++ if (likely(access_ok(VERIFY_WRITE, to, n))) |
700 |
++ n = __copy_tofrom_user(to, from, n); |
701 |
+ return n; |
702 |
+ } |
703 |
+ |
704 |
+@@ -303,13 +295,8 @@ extern unsigned long __clear_user(void *addr, unsigned long size); |
705 |
+ static inline __must_check unsigned long |
706 |
+ clear_user(void *addr, unsigned long size) |
707 |
+ { |
708 |
+- |
709 |
+- if (access_ok(VERIFY_WRITE, addr, size)) |
710 |
+- return __clear_user(addr, size); |
711 |
+- if ((unsigned long)addr < TASK_SIZE) { |
712 |
+- unsigned long over = (unsigned long)addr + size - TASK_SIZE; |
713 |
+- return __clear_user(addr, size - over) + over; |
714 |
+- } |
715 |
++ if (likely(access_ok(VERIFY_WRITE, addr, size))) |
716 |
++ size = __clear_user(addr, size); |
717 |
+ return size; |
718 |
+ } |
719 |
+ |
720 |
+diff --git a/arch/parisc/include/asm/uaccess.h b/arch/parisc/include/asm/uaccess.h |
721 |
+index df9d8dd72db2..3c38f8535499 100644 |
722 |
+--- a/arch/parisc/include/asm/uaccess.h |
723 |
++++ b/arch/parisc/include/asm/uaccess.h |
724 |
+@@ -10,6 +10,7 @@ |
725 |
+ #include <asm-generic/uaccess-unaligned.h> |
726 |
+ |
727 |
+ #include <linux/bug.h> |
728 |
++#include <linux/string.h> |
729 |
+ |
730 |
+ #define VERIFY_READ 0 |
731 |
+ #define VERIFY_WRITE 1 |
732 |
+@@ -245,13 +246,14 @@ static inline unsigned long __must_check copy_from_user(void *to, |
733 |
+ unsigned long n) |
734 |
+ { |
735 |
+ int sz = __compiletime_object_size(to); |
736 |
+- int ret = -EFAULT; |
737 |
++ unsigned long ret = n; |
738 |
+ |
739 |
+ if (likely(sz == -1 || !__builtin_constant_p(n) || sz >= n)) |
740 |
+ ret = __copy_from_user(to, from, n); |
741 |
+ else |
742 |
+ copy_from_user_overflow(); |
743 |
+- |
744 |
++ if (unlikely(ret)) |
745 |
++ memset(to + (n - ret), 0, ret); |
746 |
+ return ret; |
747 |
+ } |
748 |
+ |
749 |
+diff --git a/arch/powerpc/include/asm/uaccess.h b/arch/powerpc/include/asm/uaccess.h |
750 |
+index 9485b43a7c00..46c486599645 100644 |
751 |
+--- a/arch/powerpc/include/asm/uaccess.h |
752 |
++++ b/arch/powerpc/include/asm/uaccess.h |
753 |
+@@ -323,30 +323,17 @@ extern unsigned long __copy_tofrom_user(void __user *to, |
754 |
+ static inline unsigned long copy_from_user(void *to, |
755 |
+ const void __user *from, unsigned long n) |
756 |
+ { |
757 |
+- unsigned long over; |
758 |
+- |
759 |
+- if (access_ok(VERIFY_READ, from, n)) |
760 |
++ if (likely(access_ok(VERIFY_READ, from, n))) |
761 |
+ return __copy_tofrom_user((__force void __user *)to, from, n); |
762 |
+- if ((unsigned long)from < TASK_SIZE) { |
763 |
+- over = (unsigned long)from + n - TASK_SIZE; |
764 |
+- return __copy_tofrom_user((__force void __user *)to, from, |
765 |
+- n - over) + over; |
766 |
+- } |
767 |
++ memset(to, 0, n); |
768 |
+ return n; |
769 |
+ } |
770 |
+ |
771 |
+ static inline unsigned long copy_to_user(void __user *to, |
772 |
+ const void *from, unsigned long n) |
773 |
+ { |
774 |
+- unsigned long over; |
775 |
+- |
776 |
+ if (access_ok(VERIFY_WRITE, to, n)) |
777 |
+ return __copy_tofrom_user(to, (__force void __user *)from, n); |
778 |
+- if ((unsigned long)to < TASK_SIZE) { |
779 |
+- over = (unsigned long)to + n - TASK_SIZE; |
780 |
+- return __copy_tofrom_user(to, (__force void __user *)from, |
781 |
+- n - over) + over; |
782 |
+- } |
783 |
+ return n; |
784 |
+ } |
785 |
+ |
786 |
+@@ -437,10 +424,6 @@ static inline unsigned long clear_user(void __user *addr, unsigned long size) |
787 |
+ might_fault(); |
788 |
+ if (likely(access_ok(VERIFY_WRITE, addr, size))) |
789 |
+ return __clear_user(addr, size); |
790 |
+- if ((unsigned long)addr < TASK_SIZE) { |
791 |
+- unsigned long over = (unsigned long)addr + size - TASK_SIZE; |
792 |
+- return __clear_user(addr, size - over) + over; |
793 |
+- } |
794 |
+ return size; |
795 |
+ } |
796 |
+ |
797 |
+diff --git a/arch/powerpc/mm/slb_low.S b/arch/powerpc/mm/slb_low.S |
798 |
+index 736d18b3cefd..4c48b487698c 100644 |
799 |
+--- a/arch/powerpc/mm/slb_low.S |
800 |
++++ b/arch/powerpc/mm/slb_low.S |
801 |
+@@ -113,7 +113,12 @@ BEGIN_FTR_SECTION |
802 |
+ END_MMU_FTR_SECTION_IFCLR(MMU_FTR_1T_SEGMENT) |
803 |
+ b slb_finish_load_1T |
804 |
+ |
805 |
+-0: |
806 |
++0: /* |
807 |
++ * For userspace addresses, make sure this is region 0. |
808 |
++ */ |
809 |
++ cmpdi r9, 0 |
810 |
++ bne 8f |
811 |
++ |
812 |
+ /* when using slices, we extract the psize off the slice bitmaps |
813 |
+ * and then we need to get the sllp encoding off the mmu_psize_defs |
814 |
+ * array. |
815 |
+diff --git a/arch/s390/include/asm/uaccess.h b/arch/s390/include/asm/uaccess.h |
816 |
+index cd4c68e0398d..528f08c1d584 100644 |
817 |
+--- a/arch/s390/include/asm/uaccess.h |
818 |
++++ b/arch/s390/include/asm/uaccess.h |
819 |
+@@ -213,28 +213,28 @@ int __put_user_bad(void) __attribute__((noreturn)); |
820 |
+ __chk_user_ptr(ptr); \ |
821 |
+ switch (sizeof(*(ptr))) { \ |
822 |
+ case 1: { \ |
823 |
+- unsigned char __x; \ |
824 |
++ unsigned char __x = 0; \ |
825 |
+ __gu_err = __get_user_fn(&__x, ptr, \ |
826 |
+ sizeof(*(ptr))); \ |
827 |
+ (x) = *(__force __typeof__(*(ptr)) *) &__x; \ |
828 |
+ break; \ |
829 |
+ }; \ |
830 |
+ case 2: { \ |
831 |
+- unsigned short __x; \ |
832 |
++ unsigned short __x = 0; \ |
833 |
+ __gu_err = __get_user_fn(&__x, ptr, \ |
834 |
+ sizeof(*(ptr))); \ |
835 |
+ (x) = *(__force __typeof__(*(ptr)) *) &__x; \ |
836 |
+ break; \ |
837 |
+ }; \ |
838 |
+ case 4: { \ |
839 |
+- unsigned int __x; \ |
840 |
++ unsigned int __x = 0; \ |
841 |
+ __gu_err = __get_user_fn(&__x, ptr, \ |
842 |
+ sizeof(*(ptr))); \ |
843 |
+ (x) = *(__force __typeof__(*(ptr)) *) &__x; \ |
844 |
+ break; \ |
845 |
+ }; \ |
846 |
+ case 8: { \ |
847 |
+- unsigned long long __x; \ |
848 |
++ unsigned long long __x = 0; \ |
849 |
+ __gu_err = __get_user_fn(&__x, ptr, \ |
850 |
+ sizeof(*(ptr))); \ |
851 |
+ (x) = *(__force __typeof__(*(ptr)) *) &__x; \ |
852 |
+diff --git a/arch/score/include/asm/uaccess.h b/arch/score/include/asm/uaccess.h |
853 |
+index ab66ddde777b..69326dfb894d 100644 |
854 |
+--- a/arch/score/include/asm/uaccess.h |
855 |
++++ b/arch/score/include/asm/uaccess.h |
856 |
+@@ -158,7 +158,7 @@ do { \ |
857 |
+ __get_user_asm(val, "lw", ptr); \ |
858 |
+ break; \ |
859 |
+ case 8: \ |
860 |
+- if ((copy_from_user((void *)&val, ptr, 8)) == 0) \ |
861 |
++ if (__copy_from_user((void *)&val, ptr, 8) == 0) \ |
862 |
+ __gu_err = 0; \ |
863 |
+ else \ |
864 |
+ __gu_err = -EFAULT; \ |
865 |
+@@ -183,6 +183,8 @@ do { \ |
866 |
+ \ |
867 |
+ if (likely(access_ok(VERIFY_READ, __gu_ptr, size))) \ |
868 |
+ __get_user_common((x), size, __gu_ptr); \ |
869 |
++ else \ |
870 |
++ (x) = 0; \ |
871 |
+ \ |
872 |
+ __gu_err; \ |
873 |
+ }) |
874 |
+@@ -196,6 +198,7 @@ do { \ |
875 |
+ "2:\n" \ |
876 |
+ ".section .fixup,\"ax\"\n" \ |
877 |
+ "3:li %0, %4\n" \ |
878 |
++ "li %1, 0\n" \ |
879 |
+ "j 2b\n" \ |
880 |
+ ".previous\n" \ |
881 |
+ ".section __ex_table,\"a\"\n" \ |
882 |
+@@ -293,35 +296,34 @@ extern int __copy_tofrom_user(void *to, const void *from, unsigned long len); |
883 |
+ static inline unsigned long |
884 |
+ copy_from_user(void *to, const void *from, unsigned long len) |
885 |
+ { |
886 |
+- unsigned long over; |
887 |
++ unsigned long res = len; |
888 |
+ |
889 |
+- if (access_ok(VERIFY_READ, from, len)) |
890 |
+- return __copy_tofrom_user(to, from, len); |
891 |
++ if (likely(access_ok(VERIFY_READ, from, len))) |
892 |
++ res = __copy_tofrom_user(to, from, len); |
893 |
+ |
894 |
+- if ((unsigned long)from < TASK_SIZE) { |
895 |
+- over = (unsigned long)from + len - TASK_SIZE; |
896 |
+- return __copy_tofrom_user(to, from, len - over) + over; |
897 |
+- } |
898 |
+- return len; |
899 |
++ if (unlikely(res)) |
900 |
++ memset(to + (len - res), 0, res); |
901 |
++ |
902 |
++ return res; |
903 |
+ } |
904 |
+ |
905 |
+ static inline unsigned long |
906 |
+ copy_to_user(void *to, const void *from, unsigned long len) |
907 |
+ { |
908 |
+- unsigned long over; |
909 |
+- |
910 |
+- if (access_ok(VERIFY_WRITE, to, len)) |
911 |
+- return __copy_tofrom_user(to, from, len); |
912 |
++ if (likely(access_ok(VERIFY_WRITE, to, len))) |
913 |
++ len = __copy_tofrom_user(to, from, len); |
914 |
+ |
915 |
+- if ((unsigned long)to < TASK_SIZE) { |
916 |
+- over = (unsigned long)to + len - TASK_SIZE; |
917 |
+- return __copy_tofrom_user(to, from, len - over) + over; |
918 |
+- } |
919 |
+ return len; |
920 |
+ } |
921 |
+ |
922 |
+-#define __copy_from_user(to, from, len) \ |
923 |
+- __copy_tofrom_user((to), (from), (len)) |
924 |
++static inline unsigned long |
925 |
++__copy_from_user(void *to, const void *from, unsigned long len) |
926 |
++{ |
927 |
++ unsigned long left = __copy_tofrom_user(to, from, len); |
928 |
++ if (unlikely(left)) |
929 |
++ memset(to + (len - left), 0, left); |
930 |
++ return left; |
931 |
++} |
932 |
+ |
933 |
+ #define __copy_to_user(to, from, len) \ |
934 |
+ __copy_tofrom_user((to), (from), (len)) |
935 |
+@@ -335,17 +337,17 @@ __copy_to_user_inatomic(void *to, const void *from, unsigned long len) |
936 |
+ static inline unsigned long |
937 |
+ __copy_from_user_inatomic(void *to, const void *from, unsigned long len) |
938 |
+ { |
939 |
+- return __copy_from_user(to, from, len); |
940 |
++ return __copy_tofrom_user(to, from, len); |
941 |
+ } |
942 |
+ |
943 |
+-#define __copy_in_user(to, from, len) __copy_from_user(to, from, len) |
944 |
++#define __copy_in_user(to, from, len) __copy_tofrom_user(to, from, len) |
945 |
+ |
946 |
+ static inline unsigned long |
947 |
+ copy_in_user(void *to, const void *from, unsigned long len) |
948 |
+ { |
949 |
+ if (access_ok(VERIFY_READ, from, len) && |
950 |
+ access_ok(VERFITY_WRITE, to, len)) |
951 |
+- return copy_from_user(to, from, len); |
952 |
++ return __copy_tofrom_user(to, from, len); |
953 |
+ } |
954 |
+ |
955 |
+ /* |
956 |
+diff --git a/arch/sh/include/asm/uaccess.h b/arch/sh/include/asm/uaccess.h |
957 |
+index 9486376605f4..c04cc18ae9cd 100644 |
958 |
+--- a/arch/sh/include/asm/uaccess.h |
959 |
++++ b/arch/sh/include/asm/uaccess.h |
960 |
+@@ -151,7 +151,10 @@ copy_from_user(void *to, const void __user *from, unsigned long n) |
961 |
+ __kernel_size_t __copy_size = (__kernel_size_t) n; |
962 |
+ |
963 |
+ if (__copy_size && __access_ok(__copy_from, __copy_size)) |
964 |
+- return __copy_user(to, from, __copy_size); |
965 |
++ __copy_size = __copy_user(to, from, __copy_size); |
966 |
++ |
967 |
++ if (unlikely(__copy_size)) |
968 |
++ memset(to + (n - __copy_size), 0, __copy_size); |
969 |
+ |
970 |
+ return __copy_size; |
971 |
+ } |
972 |
+diff --git a/arch/sh/include/asm/uaccess_64.h b/arch/sh/include/asm/uaccess_64.h |
973 |
+index 2e07e0f40c6a..a2f9d0531328 100644 |
974 |
+--- a/arch/sh/include/asm/uaccess_64.h |
975 |
++++ b/arch/sh/include/asm/uaccess_64.h |
976 |
+@@ -24,6 +24,7 @@ |
977 |
+ #define __get_user_size(x,ptr,size,retval) \ |
978 |
+ do { \ |
979 |
+ retval = 0; \ |
980 |
++ x = 0; \ |
981 |
+ switch (size) { \ |
982 |
+ case 1: \ |
983 |
+ retval = __get_user_asm_b((void *)&x, \ |
984 |
+diff --git a/arch/sparc/include/asm/uaccess_32.h b/arch/sparc/include/asm/uaccess_32.h |
985 |
+index 9634d086fc56..79b03872e165 100644 |
986 |
+--- a/arch/sparc/include/asm/uaccess_32.h |
987 |
++++ b/arch/sparc/include/asm/uaccess_32.h |
988 |
+@@ -265,8 +265,10 @@ static inline unsigned long copy_from_user(void *to, const void __user *from, un |
989 |
+ { |
990 |
+ if (n && __access_ok((unsigned long) from, n)) |
991 |
+ return __copy_user((__force void __user *) to, from, n); |
992 |
+- else |
993 |
++ else { |
994 |
++ memset(to, 0, n); |
995 |
+ return n; |
996 |
++ } |
997 |
+ } |
998 |
+ |
999 |
+ static inline unsigned long __copy_from_user(void *to, const void __user *from, unsigned long n) |
1000 |
+diff --git a/arch/x86/include/asm/uaccess.h b/arch/x86/include/asm/uaccess.h |
1001 |
+index 0d592e0a5b84..8e046ade1c88 100644 |
1002 |
+--- a/arch/x86/include/asm/uaccess.h |
1003 |
++++ b/arch/x86/include/asm/uaccess.h |
1004 |
+@@ -391,7 +391,11 @@ do { \ |
1005 |
+ #define __get_user_asm_ex(x, addr, itype, rtype, ltype) \ |
1006 |
+ asm volatile("1: mov"itype" %1,%"rtype"0\n" \ |
1007 |
+ "2:\n" \ |
1008 |
+- _ASM_EXTABLE_EX(1b, 2b) \ |
1009 |
++ ".section .fixup,\"ax\"\n" \ |
1010 |
++ "3:xor"itype" %"rtype"0,%"rtype"0\n" \ |
1011 |
++ " jmp 2b\n" \ |
1012 |
++ ".previous\n" \ |
1013 |
++ _ASM_EXTABLE_EX(1b, 3b) \ |
1014 |
+ : ltype(x) : "m" (__m(addr))) |
1015 |
+ |
1016 |
+ #define __put_user_nocheck(x, ptr, size) \ |
1017 |
+diff --git a/block/bio.c b/block/bio.c |
1018 |
+index 3e6e1986a5b2..78803e99c154 100644 |
1019 |
+--- a/block/bio.c |
1020 |
++++ b/block/bio.c |
1021 |
+@@ -1824,8 +1824,9 @@ EXPORT_SYMBOL(bio_endio_nodec); |
1022 |
+ * Allocates and returns a new bio which represents @sectors from the start of |
1023 |
+ * @bio, and updates @bio to represent the remaining sectors. |
1024 |
+ * |
1025 |
+- * The newly allocated bio will point to @bio's bi_io_vec; it is the caller's |
1026 |
+- * responsibility to ensure that @bio is not freed before the split. |
1027 |
++ * Unless this is a discard request the newly allocated bio will point |
1028 |
++ * to @bio's bi_io_vec; it is the caller's responsibility to ensure that |
1029 |
++ * @bio is not freed before the split. |
1030 |
+ */ |
1031 |
+ struct bio *bio_split(struct bio *bio, int sectors, |
1032 |
+ gfp_t gfp, struct bio_set *bs) |
1033 |
+@@ -1835,7 +1836,15 @@ struct bio *bio_split(struct bio *bio, int sectors, |
1034 |
+ BUG_ON(sectors <= 0); |
1035 |
+ BUG_ON(sectors >= bio_sectors(bio)); |
1036 |
+ |
1037 |
+- split = bio_clone_fast(bio, gfp, bs); |
1038 |
++ /* |
1039 |
++ * Discards need a mutable bio_vec to accommodate the payload |
1040 |
++ * required by the DSM TRIM and UNMAP commands. |
1041 |
++ */ |
1042 |
++ if (bio->bi_rw & REQ_DISCARD) |
1043 |
++ split = bio_clone_bioset(bio, gfp, bs); |
1044 |
++ else |
1045 |
++ split = bio_clone_fast(bio, gfp, bs); |
1046 |
++ |
1047 |
+ if (!split) |
1048 |
+ return NULL; |
1049 |
+ |
1050 |
+diff --git a/crypto/blkcipher.c b/crypto/blkcipher.c |
1051 |
+index 0122bec38564..f25799f351f7 100644 |
1052 |
+--- a/crypto/blkcipher.c |
1053 |
++++ b/crypto/blkcipher.c |
1054 |
+@@ -233,6 +233,8 @@ static int blkcipher_walk_next(struct blkcipher_desc *desc, |
1055 |
+ return blkcipher_walk_done(desc, walk, -EINVAL); |
1056 |
+ } |
1057 |
+ |
1058 |
++ bsize = min(walk->walk_blocksize, n); |
1059 |
++ |
1060 |
+ walk->flags &= ~(BLKCIPHER_WALK_SLOW | BLKCIPHER_WALK_COPY | |
1061 |
+ BLKCIPHER_WALK_DIFF); |
1062 |
+ if (!scatterwalk_aligned(&walk->in, walk->alignmask) || |
1063 |
+@@ -245,7 +247,6 @@ static int blkcipher_walk_next(struct blkcipher_desc *desc, |
1064 |
+ } |
1065 |
+ } |
1066 |
+ |
1067 |
+- bsize = min(walk->walk_blocksize, n); |
1068 |
+ n = scatterwalk_clamp(&walk->in, n); |
1069 |
+ n = scatterwalk_clamp(&walk->out, n); |
1070 |
+ |
1071 |
+diff --git a/crypto/cryptd.c b/crypto/cryptd.c |
1072 |
+index 650afac10fd7..be367e43ffe8 100644 |
1073 |
+--- a/crypto/cryptd.c |
1074 |
++++ b/crypto/cryptd.c |
1075 |
+@@ -565,9 +565,14 @@ static int cryptd_hash_export(struct ahash_request *req, void *out) |
1076 |
+ |
1077 |
+ static int cryptd_hash_import(struct ahash_request *req, const void *in) |
1078 |
+ { |
1079 |
+- struct cryptd_hash_request_ctx *rctx = ahash_request_ctx(req); |
1080 |
++ struct crypto_ahash *tfm = crypto_ahash_reqtfm(req); |
1081 |
++ struct cryptd_hash_ctx *ctx = crypto_ahash_ctx(tfm); |
1082 |
++ struct shash_desc *desc = cryptd_shash_desc(req); |
1083 |
++ |
1084 |
++ desc->tfm = ctx->child; |
1085 |
++ desc->flags = req->base.flags; |
1086 |
+ |
1087 |
+- return crypto_shash_import(&rctx->desc, in); |
1088 |
++ return crypto_shash_import(desc, in); |
1089 |
+ } |
1090 |
+ |
1091 |
+ static int cryptd_create_hash(struct crypto_template *tmpl, struct rtattr **tb, |
1092 |
+diff --git a/drivers/bus/arm-ccn.c b/drivers/bus/arm-ccn.c |
1093 |
+index 60397ec77ff7..27fd0dacad5f 100644 |
1094 |
+--- a/drivers/bus/arm-ccn.c |
1095 |
++++ b/drivers/bus/arm-ccn.c |
1096 |
+@@ -804,6 +804,10 @@ static void arm_ccn_pmu_xp_dt_config(struct perf_event *event, int enable) |
1097 |
+ struct arm_ccn_component *xp; |
1098 |
+ u32 val, dt_cfg; |
1099 |
+ |
1100 |
++ /* Nothing to do for cycle counter */ |
1101 |
++ if (hw->idx == CCN_IDX_PMU_CYCLE_COUNTER) |
1102 |
++ return; |
1103 |
++ |
1104 |
+ if (CCN_CONFIG_TYPE(event->attr.config) == CCN_TYPE_XP) |
1105 |
+ xp = &ccn->xp[CCN_CONFIG_XP(event->attr.config)]; |
1106 |
+ else |
1107 |
+@@ -901,7 +905,7 @@ static void arm_ccn_pmu_xp_watchpoint_config(struct perf_event *event) |
1108 |
+ |
1109 |
+ /* Comparison values */ |
1110 |
+ writel(cmp_l & 0xffffffff, source->base + CCN_XP_DT_CMP_VAL_L(wp)); |
1111 |
+- writel((cmp_l >> 32) & 0xefffffff, |
1112 |
++ writel((cmp_l >> 32) & 0x7fffffff, |
1113 |
+ source->base + CCN_XP_DT_CMP_VAL_L(wp) + 4); |
1114 |
+ writel(cmp_h & 0xffffffff, source->base + CCN_XP_DT_CMP_VAL_H(wp)); |
1115 |
+ writel((cmp_h >> 32) & 0x0fffffff, |
1116 |
+@@ -909,7 +913,7 @@ static void arm_ccn_pmu_xp_watchpoint_config(struct perf_event *event) |
1117 |
+ |
1118 |
+ /* Mask */ |
1119 |
+ writel(mask_l & 0xffffffff, source->base + CCN_XP_DT_CMP_MASK_L(wp)); |
1120 |
+- writel((mask_l >> 32) & 0xefffffff, |
1121 |
++ writel((mask_l >> 32) & 0x7fffffff, |
1122 |
+ source->base + CCN_XP_DT_CMP_MASK_L(wp) + 4); |
1123 |
+ writel(mask_h & 0xffffffff, source->base + CCN_XP_DT_CMP_MASK_H(wp)); |
1124 |
+ writel((mask_h >> 32) & 0x0fffffff, |
1125 |
+diff --git a/drivers/iio/accel/kxsd9.c b/drivers/iio/accel/kxsd9.c |
1126 |
+index 6dfce7e722cb..2254f8509a69 100644 |
1127 |
+--- a/drivers/iio/accel/kxsd9.c |
1128 |
++++ b/drivers/iio/accel/kxsd9.c |
1129 |
+@@ -166,6 +166,7 @@ static int kxsd9_read_raw(struct iio_dev *indio_dev, |
1130 |
+ ret = spi_w8r8(st->us, KXSD9_READ(KXSD9_REG_CTRL_C)); |
1131 |
+ if (ret) |
1132 |
+ goto error_ret; |
1133 |
++ *val = 0; |
1134 |
+ *val2 = kxsd9_micro_scales[ret & KXSD9_FS_MASK]; |
1135 |
+ ret = IIO_VAL_INT_PLUS_MICRO; |
1136 |
+ break; |
1137 |
+diff --git a/drivers/irqchip/irq-atmel-aic.c b/drivers/irqchip/irq-atmel-aic.c |
1138 |
+index 9a2cf3c1a3a5..27fdd8c3e7b4 100644 |
1139 |
+--- a/drivers/irqchip/irq-atmel-aic.c |
1140 |
++++ b/drivers/irqchip/irq-atmel-aic.c |
1141 |
+@@ -65,11 +65,11 @@ aic_handle(struct pt_regs *regs) |
1142 |
+ u32 irqnr; |
1143 |
+ u32 irqstat; |
1144 |
+ |
1145 |
+- irqnr = irq_reg_readl(gc->reg_base + AT91_AIC_IVR); |
1146 |
+- irqstat = irq_reg_readl(gc->reg_base + AT91_AIC_ISR); |
1147 |
++ irqnr = irq_reg_readl(gc, AT91_AIC_IVR); |
1148 |
++ irqstat = irq_reg_readl(gc, AT91_AIC_ISR); |
1149 |
+ |
1150 |
+ if (!irqstat) |
1151 |
+- irq_reg_writel(0, gc->reg_base + AT91_AIC_EOICR); |
1152 |
++ irq_reg_writel(gc, 0, AT91_AIC_EOICR); |
1153 |
+ else |
1154 |
+ handle_domain_irq(aic_domain, irqnr, regs); |
1155 |
+ } |
1156 |
+@@ -80,7 +80,7 @@ static int aic_retrigger(struct irq_data *d) |
1157 |
+ |
1158 |
+ /* Enable interrupt on AIC5 */ |
1159 |
+ irq_gc_lock(gc); |
1160 |
+- irq_reg_writel(d->mask, gc->reg_base + AT91_AIC_ISCR); |
1161 |
++ irq_reg_writel(gc, d->mask, AT91_AIC_ISCR); |
1162 |
+ irq_gc_unlock(gc); |
1163 |
+ |
1164 |
+ return 0; |
1165 |
+@@ -92,12 +92,12 @@ static int aic_set_type(struct irq_data *d, unsigned type) |
1166 |
+ unsigned int smr; |
1167 |
+ int ret; |
1168 |
+ |
1169 |
+- smr = irq_reg_readl(gc->reg_base + AT91_AIC_SMR(d->hwirq)); |
1170 |
++ smr = irq_reg_readl(gc, AT91_AIC_SMR(d->hwirq)); |
1171 |
+ ret = aic_common_set_type(d, type, &smr); |
1172 |
+ if (ret) |
1173 |
+ return ret; |
1174 |
+ |
1175 |
+- irq_reg_writel(smr, gc->reg_base + AT91_AIC_SMR(d->hwirq)); |
1176 |
++ irq_reg_writel(gc, smr, AT91_AIC_SMR(d->hwirq)); |
1177 |
+ |
1178 |
+ return 0; |
1179 |
+ } |
1180 |
+@@ -108,8 +108,8 @@ static void aic_suspend(struct irq_data *d) |
1181 |
+ struct irq_chip_generic *gc = irq_data_get_irq_chip_data(d); |
1182 |
+ |
1183 |
+ irq_gc_lock(gc); |
1184 |
+- irq_reg_writel(gc->mask_cache, gc->reg_base + AT91_AIC_IDCR); |
1185 |
+- irq_reg_writel(gc->wake_active, gc->reg_base + AT91_AIC_IECR); |
1186 |
++ irq_reg_writel(gc, gc->mask_cache, AT91_AIC_IDCR); |
1187 |
++ irq_reg_writel(gc, gc->wake_active, AT91_AIC_IECR); |
1188 |
+ irq_gc_unlock(gc); |
1189 |
+ } |
1190 |
+ |
1191 |
+@@ -118,8 +118,8 @@ static void aic_resume(struct irq_data *d) |
1192 |
+ struct irq_chip_generic *gc = irq_data_get_irq_chip_data(d); |
1193 |
+ |
1194 |
+ irq_gc_lock(gc); |
1195 |
+- irq_reg_writel(gc->wake_active, gc->reg_base + AT91_AIC_IDCR); |
1196 |
+- irq_reg_writel(gc->mask_cache, gc->reg_base + AT91_AIC_IECR); |
1197 |
++ irq_reg_writel(gc, gc->wake_active, AT91_AIC_IDCR); |
1198 |
++ irq_reg_writel(gc, gc->mask_cache, AT91_AIC_IECR); |
1199 |
+ irq_gc_unlock(gc); |
1200 |
+ } |
1201 |
+ |
1202 |
+@@ -128,8 +128,8 @@ static void aic_pm_shutdown(struct irq_data *d) |
1203 |
+ struct irq_chip_generic *gc = irq_data_get_irq_chip_data(d); |
1204 |
+ |
1205 |
+ irq_gc_lock(gc); |
1206 |
+- irq_reg_writel(0xffffffff, gc->reg_base + AT91_AIC_IDCR); |
1207 |
+- irq_reg_writel(0xffffffff, gc->reg_base + AT91_AIC_ICCR); |
1208 |
++ irq_reg_writel(gc, 0xffffffff, AT91_AIC_IDCR); |
1209 |
++ irq_reg_writel(gc, 0xffffffff, AT91_AIC_ICCR); |
1210 |
+ irq_gc_unlock(gc); |
1211 |
+ } |
1212 |
+ #else |
1213 |
+@@ -148,24 +148,24 @@ static void __init aic_hw_init(struct irq_domain *domain) |
1214 |
+ * will not Lock out nIRQ |
1215 |
+ */ |
1216 |
+ for (i = 0; i < 8; i++) |
1217 |
+- irq_reg_writel(0, gc->reg_base + AT91_AIC_EOICR); |
1218 |
++ irq_reg_writel(gc, 0, AT91_AIC_EOICR); |
1219 |
+ |
1220 |
+ /* |
1221 |
+ * Spurious Interrupt ID in Spurious Vector Register. |
1222 |
+ * When there is no current interrupt, the IRQ Vector Register |
1223 |
+ * reads the value stored in AIC_SPU |
1224 |
+ */ |
1225 |
+- irq_reg_writel(0xffffffff, gc->reg_base + AT91_AIC_SPU); |
1226 |
++ irq_reg_writel(gc, 0xffffffff, AT91_AIC_SPU); |
1227 |
+ |
1228 |
+ /* No debugging in AIC: Debug (Protect) Control Register */ |
1229 |
+- irq_reg_writel(0, gc->reg_base + AT91_AIC_DCR); |
1230 |
++ irq_reg_writel(gc, 0, AT91_AIC_DCR); |
1231 |
+ |
1232 |
+ /* Disable and clear all interrupts initially */ |
1233 |
+- irq_reg_writel(0xffffffff, gc->reg_base + AT91_AIC_IDCR); |
1234 |
+- irq_reg_writel(0xffffffff, gc->reg_base + AT91_AIC_ICCR); |
1235 |
++ irq_reg_writel(gc, 0xffffffff, AT91_AIC_IDCR); |
1236 |
++ irq_reg_writel(gc, 0xffffffff, AT91_AIC_ICCR); |
1237 |
+ |
1238 |
+ for (i = 0; i < 32; i++) |
1239 |
+- irq_reg_writel(i, gc->reg_base + AT91_AIC_SVR(i)); |
1240 |
++ irq_reg_writel(gc, i, AT91_AIC_SVR(i)); |
1241 |
+ } |
1242 |
+ |
1243 |
+ static int aic_irq_domain_xlate(struct irq_domain *d, |
1244 |
+@@ -195,10 +195,10 @@ static int aic_irq_domain_xlate(struct irq_domain *d, |
1245 |
+ gc = dgc->gc[idx]; |
1246 |
+ |
1247 |
+ irq_gc_lock(gc); |
1248 |
+- smr = irq_reg_readl(gc->reg_base + AT91_AIC_SMR(*out_hwirq)); |
1249 |
++ smr = irq_reg_readl(gc, AT91_AIC_SMR(*out_hwirq)); |
1250 |
+ ret = aic_common_set_priority(intspec[2], &smr); |
1251 |
+ if (!ret) |
1252 |
+- irq_reg_writel(smr, gc->reg_base + AT91_AIC_SMR(*out_hwirq)); |
1253 |
++ irq_reg_writel(gc, smr, AT91_AIC_SMR(*out_hwirq)); |
1254 |
+ irq_gc_unlock(gc); |
1255 |
+ |
1256 |
+ return ret; |
1257 |
+diff --git a/drivers/irqchip/irq-atmel-aic5.c b/drivers/irqchip/irq-atmel-aic5.c |
1258 |
+index a11aae8fb006..a2e8c3f876cb 100644 |
1259 |
+--- a/drivers/irqchip/irq-atmel-aic5.c |
1260 |
++++ b/drivers/irqchip/irq-atmel-aic5.c |
1261 |
+@@ -75,11 +75,11 @@ aic5_handle(struct pt_regs *regs) |
1262 |
+ u32 irqnr; |
1263 |
+ u32 irqstat; |
1264 |
+ |
1265 |
+- irqnr = irq_reg_readl(gc->reg_base + AT91_AIC5_IVR); |
1266 |
+- irqstat = irq_reg_readl(gc->reg_base + AT91_AIC5_ISR); |
1267 |
++ irqnr = irq_reg_readl(gc, AT91_AIC5_IVR); |
1268 |
++ irqstat = irq_reg_readl(gc, AT91_AIC5_ISR); |
1269 |
+ |
1270 |
+ if (!irqstat) |
1271 |
+- irq_reg_writel(0, gc->reg_base + AT91_AIC5_EOICR); |
1272 |
++ irq_reg_writel(gc, 0, AT91_AIC5_EOICR); |
1273 |
+ else |
1274 |
+ handle_domain_irq(aic5_domain, irqnr, regs); |
1275 |
+ } |
1276 |
+@@ -92,8 +92,8 @@ static void aic5_mask(struct irq_data *d) |
1277 |
+ |
1278 |
+ /* Disable interrupt on AIC5 */ |
1279 |
+ irq_gc_lock(gc); |
1280 |
+- irq_reg_writel(d->hwirq, gc->reg_base + AT91_AIC5_SSR); |
1281 |
+- irq_reg_writel(1, gc->reg_base + AT91_AIC5_IDCR); |
1282 |
++ irq_reg_writel(gc, d->hwirq, AT91_AIC5_SSR); |
1283 |
++ irq_reg_writel(gc, 1, AT91_AIC5_IDCR); |
1284 |
+ gc->mask_cache &= ~d->mask; |
1285 |
+ irq_gc_unlock(gc); |
1286 |
+ } |
1287 |
+@@ -106,8 +106,8 @@ static void aic5_unmask(struct irq_data *d) |
1288 |
+ |
1289 |
+ /* Enable interrupt on AIC5 */ |
1290 |
+ irq_gc_lock(gc); |
1291 |
+- irq_reg_writel(d->hwirq, gc->reg_base + AT91_AIC5_SSR); |
1292 |
+- irq_reg_writel(1, gc->reg_base + AT91_AIC5_IECR); |
1293 |
++ irq_reg_writel(gc, d->hwirq, AT91_AIC5_SSR); |
1294 |
++ irq_reg_writel(gc, 1, AT91_AIC5_IECR); |
1295 |
+ gc->mask_cache |= d->mask; |
1296 |
+ irq_gc_unlock(gc); |
1297 |
+ } |
1298 |
+@@ -120,8 +120,8 @@ static int aic5_retrigger(struct irq_data *d) |
1299 |
+ |
1300 |
+ /* Enable interrupt on AIC5 */ |
1301 |
+ irq_gc_lock(gc); |
1302 |
+- irq_reg_writel(d->hwirq, gc->reg_base + AT91_AIC5_SSR); |
1303 |
+- irq_reg_writel(1, gc->reg_base + AT91_AIC5_ISCR); |
1304 |
++ irq_reg_writel(gc, d->hwirq, AT91_AIC5_SSR); |
1305 |
++ irq_reg_writel(gc, 1, AT91_AIC5_ISCR); |
1306 |
+ irq_gc_unlock(gc); |
1307 |
+ |
1308 |
+ return 0; |
1309 |
+@@ -136,11 +136,11 @@ static int aic5_set_type(struct irq_data *d, unsigned type) |
1310 |
+ int ret; |
1311 |
+ |
1312 |
+ irq_gc_lock(gc); |
1313 |
+- irq_reg_writel(d->hwirq, gc->reg_base + AT91_AIC5_SSR); |
1314 |
+- smr = irq_reg_readl(gc->reg_base + AT91_AIC5_SMR); |
1315 |
++ irq_reg_writel(gc, d->hwirq, AT91_AIC5_SSR); |
1316 |
++ smr = irq_reg_readl(gc, AT91_AIC5_SMR); |
1317 |
+ ret = aic_common_set_type(d, type, &smr); |
1318 |
+ if (!ret) |
1319 |
+- irq_reg_writel(smr, gc->reg_base + AT91_AIC5_SMR); |
1320 |
++ irq_reg_writel(gc, smr, AT91_AIC5_SMR); |
1321 |
+ irq_gc_unlock(gc); |
1322 |
+ |
1323 |
+ return ret; |
1324 |
+@@ -162,12 +162,11 @@ static void aic5_suspend(struct irq_data *d) |
1325 |
+ if ((mask & gc->mask_cache) == (mask & gc->wake_active)) |
1326 |
+ continue; |
1327 |
+ |
1328 |
+- irq_reg_writel(i + gc->irq_base, |
1329 |
+- bgc->reg_base + AT91_AIC5_SSR); |
1330 |
++ irq_reg_writel(bgc, i + gc->irq_base, AT91_AIC5_SSR); |
1331 |
+ if (mask & gc->wake_active) |
1332 |
+- irq_reg_writel(1, bgc->reg_base + AT91_AIC5_IECR); |
1333 |
++ irq_reg_writel(bgc, 1, AT91_AIC5_IECR); |
1334 |
+ else |
1335 |
+- irq_reg_writel(1, bgc->reg_base + AT91_AIC5_IDCR); |
1336 |
++ irq_reg_writel(bgc, 1, AT91_AIC5_IDCR); |
1337 |
+ } |
1338 |
+ irq_gc_unlock(bgc); |
1339 |
+ } |
1340 |
+@@ -187,12 +186,11 @@ static void aic5_resume(struct irq_data *d) |
1341 |
+ if ((mask & gc->mask_cache) == (mask & gc->wake_active)) |
1342 |
+ continue; |
1343 |
+ |
1344 |
+- irq_reg_writel(i + gc->irq_base, |
1345 |
+- bgc->reg_base + AT91_AIC5_SSR); |
1346 |
++ irq_reg_writel(bgc, i + gc->irq_base, AT91_AIC5_SSR); |
1347 |
+ if (mask & gc->mask_cache) |
1348 |
+- irq_reg_writel(1, bgc->reg_base + AT91_AIC5_IECR); |
1349 |
++ irq_reg_writel(bgc, 1, AT91_AIC5_IECR); |
1350 |
+ else |
1351 |
+- irq_reg_writel(1, bgc->reg_base + AT91_AIC5_IDCR); |
1352 |
++ irq_reg_writel(bgc, 1, AT91_AIC5_IDCR); |
1353 |
+ } |
1354 |
+ irq_gc_unlock(bgc); |
1355 |
+ } |
1356 |
+@@ -207,10 +205,9 @@ static void aic5_pm_shutdown(struct irq_data *d) |
1357 |
+ |
1358 |
+ irq_gc_lock(bgc); |
1359 |
+ for (i = 0; i < dgc->irqs_per_chip; i++) { |
1360 |
+- irq_reg_writel(i + gc->irq_base, |
1361 |
+- bgc->reg_base + AT91_AIC5_SSR); |
1362 |
+- irq_reg_writel(1, bgc->reg_base + AT91_AIC5_IDCR); |
1363 |
+- irq_reg_writel(1, bgc->reg_base + AT91_AIC5_ICCR); |
1364 |
++ irq_reg_writel(bgc, i + gc->irq_base, AT91_AIC5_SSR); |
1365 |
++ irq_reg_writel(bgc, 1, AT91_AIC5_IDCR); |
1366 |
++ irq_reg_writel(bgc, 1, AT91_AIC5_ICCR); |
1367 |
+ } |
1368 |
+ irq_gc_unlock(bgc); |
1369 |
+ } |
1370 |
+@@ -230,24 +227,24 @@ static void __init aic5_hw_init(struct irq_domain *domain) |
1371 |
+ * will not Lock out nIRQ |
1372 |
+ */ |
1373 |
+ for (i = 0; i < 8; i++) |
1374 |
+- irq_reg_writel(0, gc->reg_base + AT91_AIC5_EOICR); |
1375 |
++ irq_reg_writel(gc, 0, AT91_AIC5_EOICR); |
1376 |
+ |
1377 |
+ /* |
1378 |
+ * Spurious Interrupt ID in Spurious Vector Register. |
1379 |
+ * When there is no current interrupt, the IRQ Vector Register |
1380 |
+ * reads the value stored in AIC_SPU |
1381 |
+ */ |
1382 |
+- irq_reg_writel(0xffffffff, gc->reg_base + AT91_AIC5_SPU); |
1383 |
++ irq_reg_writel(gc, 0xffffffff, AT91_AIC5_SPU); |
1384 |
+ |
1385 |
+ /* No debugging in AIC: Debug (Protect) Control Register */ |
1386 |
+- irq_reg_writel(0, gc->reg_base + AT91_AIC5_DCR); |
1387 |
++ irq_reg_writel(gc, 0, AT91_AIC5_DCR); |
1388 |
+ |
1389 |
+ /* Disable and clear all interrupts initially */ |
1390 |
+ for (i = 0; i < domain->revmap_size; i++) { |
1391 |
+- irq_reg_writel(i, gc->reg_base + AT91_AIC5_SSR); |
1392 |
+- irq_reg_writel(i, gc->reg_base + AT91_AIC5_SVR); |
1393 |
+- irq_reg_writel(1, gc->reg_base + AT91_AIC5_IDCR); |
1394 |
+- irq_reg_writel(1, gc->reg_base + AT91_AIC5_ICCR); |
1395 |
++ irq_reg_writel(gc, i, AT91_AIC5_SSR); |
1396 |
++ irq_reg_writel(gc, i, AT91_AIC5_SVR); |
1397 |
++ irq_reg_writel(gc, 1, AT91_AIC5_IDCR); |
1398 |
++ irq_reg_writel(gc, 1, AT91_AIC5_ICCR); |
1399 |
+ } |
1400 |
+ } |
1401 |
+ |
1402 |
+@@ -273,11 +270,11 @@ static int aic5_irq_domain_xlate(struct irq_domain *d, |
1403 |
+ gc = dgc->gc[0]; |
1404 |
+ |
1405 |
+ irq_gc_lock(gc); |
1406 |
+- irq_reg_writel(*out_hwirq, gc->reg_base + AT91_AIC5_SSR); |
1407 |
+- smr = irq_reg_readl(gc->reg_base + AT91_AIC5_SMR); |
1408 |
++ irq_reg_writel(gc, *out_hwirq, AT91_AIC5_SSR); |
1409 |
++ smr = irq_reg_readl(gc, AT91_AIC5_SMR); |
1410 |
+ ret = aic_common_set_priority(intspec[2], &smr); |
1411 |
+ if (!ret) |
1412 |
+- irq_reg_writel(intspec[2] | smr, gc->reg_base + AT91_AIC5_SMR); |
1413 |
++ irq_reg_writel(gc, intspec[2] | smr, AT91_AIC5_SMR); |
1414 |
+ irq_gc_unlock(gc); |
1415 |
+ |
1416 |
+ return ret; |
1417 |
+diff --git a/drivers/irqchip/irq-sunxi-nmi.c b/drivers/irqchip/irq-sunxi-nmi.c |
1418 |
+index eb9b59e8f122..6b2b582433bd 100644 |
1419 |
+--- a/drivers/irqchip/irq-sunxi-nmi.c |
1420 |
++++ b/drivers/irqchip/irq-sunxi-nmi.c |
1421 |
+@@ -50,12 +50,12 @@ static struct sunxi_sc_nmi_reg_offs sun6i_reg_offs = { |
1422 |
+ static inline void sunxi_sc_nmi_write(struct irq_chip_generic *gc, u32 off, |
1423 |
+ u32 val) |
1424 |
+ { |
1425 |
+- irq_reg_writel(val, gc->reg_base + off); |
1426 |
++ irq_reg_writel(gc, val, off); |
1427 |
+ } |
1428 |
+ |
1429 |
+ static inline u32 sunxi_sc_nmi_read(struct irq_chip_generic *gc, u32 off) |
1430 |
+ { |
1431 |
+- return irq_reg_readl(gc->reg_base + off); |
1432 |
++ return irq_reg_readl(gc, off); |
1433 |
+ } |
1434 |
+ |
1435 |
+ static void sunxi_sc_nmi_handle_irq(unsigned int irq, struct irq_desc *desc) |
1436 |
+diff --git a/drivers/irqchip/irq-tb10x.c b/drivers/irqchip/irq-tb10x.c |
1437 |
+index 7c44c99bf1f2..accc20036a3c 100644 |
1438 |
+--- a/drivers/irqchip/irq-tb10x.c |
1439 |
++++ b/drivers/irqchip/irq-tb10x.c |
1440 |
+@@ -43,12 +43,12 @@ |
1441 |
+ static inline void ab_irqctl_writereg(struct irq_chip_generic *gc, u32 reg, |
1442 |
+ u32 val) |
1443 |
+ { |
1444 |
+- irq_reg_writel(val, gc->reg_base + reg); |
1445 |
++ irq_reg_writel(gc, val, reg); |
1446 |
+ } |
1447 |
+ |
1448 |
+ static inline u32 ab_irqctl_readreg(struct irq_chip_generic *gc, u32 reg) |
1449 |
+ { |
1450 |
+- return irq_reg_readl(gc->reg_base + reg); |
1451 |
++ return irq_reg_readl(gc, reg); |
1452 |
+ } |
1453 |
+ |
1454 |
+ static int tb10x_irq_set_type(struct irq_data *data, unsigned int flow_type) |
1455 |
+diff --git a/drivers/net/can/flexcan.c b/drivers/net/can/flexcan.c |
1456 |
+index 9768ba6387ad..0a28c50fcb89 100644 |
1457 |
+--- a/drivers/net/can/flexcan.c |
1458 |
++++ b/drivers/net/can/flexcan.c |
1459 |
+@@ -1341,11 +1341,10 @@ static int __maybe_unused flexcan_suspend(struct device *device) |
1460 |
+ struct flexcan_priv *priv = netdev_priv(dev); |
1461 |
+ int err; |
1462 |
+ |
1463 |
+- err = flexcan_chip_disable(priv); |
1464 |
+- if (err) |
1465 |
+- return err; |
1466 |
+- |
1467 |
+ if (netif_running(dev)) { |
1468 |
++ err = flexcan_chip_disable(priv); |
1469 |
++ if (err) |
1470 |
++ return err; |
1471 |
+ netif_stop_queue(dev); |
1472 |
+ netif_device_detach(dev); |
1473 |
+ } |
1474 |
+@@ -1358,13 +1357,17 @@ static int __maybe_unused flexcan_resume(struct device *device) |
1475 |
+ { |
1476 |
+ struct net_device *dev = dev_get_drvdata(device); |
1477 |
+ struct flexcan_priv *priv = netdev_priv(dev); |
1478 |
++ int err; |
1479 |
+ |
1480 |
+ priv->can.state = CAN_STATE_ERROR_ACTIVE; |
1481 |
+ if (netif_running(dev)) { |
1482 |
+ netif_device_attach(dev); |
1483 |
+ netif_start_queue(dev); |
1484 |
++ err = flexcan_chip_enable(priv); |
1485 |
++ if (err) |
1486 |
++ return err; |
1487 |
+ } |
1488 |
+- return flexcan_chip_enable(priv); |
1489 |
++ return 0; |
1490 |
+ } |
1491 |
+ |
1492 |
+ static SIMPLE_DEV_PM_OPS(flexcan_pm_ops, flexcan_suspend, flexcan_resume); |
1493 |
+diff --git a/drivers/usb/core/config.c b/drivers/usb/core/config.c |
1494 |
+index 894894f2ff93..81336acc7040 100644 |
1495 |
+--- a/drivers/usb/core/config.c |
1496 |
++++ b/drivers/usb/core/config.c |
1497 |
+@@ -184,8 +184,10 @@ static int usb_parse_endpoint(struct device *ddev, int cfgno, int inum, |
1498 |
+ memcpy(&endpoint->desc, d, n); |
1499 |
+ INIT_LIST_HEAD(&endpoint->urb_list); |
1500 |
+ |
1501 |
+- /* Fix up bInterval values outside the legal range. Use 32 ms if no |
1502 |
+- * proper value can be guessed. */ |
1503 |
++ /* |
1504 |
++ * Fix up bInterval values outside the legal range. |
1505 |
++ * Use 10 or 8 ms if no proper value can be guessed. |
1506 |
++ */ |
1507 |
+ i = 0; /* i = min, j = max, n = default */ |
1508 |
+ j = 255; |
1509 |
+ if (usb_endpoint_xfer_int(d)) { |
1510 |
+@@ -193,13 +195,15 @@ static int usb_parse_endpoint(struct device *ddev, int cfgno, int inum, |
1511 |
+ switch (to_usb_device(ddev)->speed) { |
1512 |
+ case USB_SPEED_SUPER: |
1513 |
+ case USB_SPEED_HIGH: |
1514 |
+- /* Many device manufacturers are using full-speed |
1515 |
++ /* |
1516 |
++ * Many device manufacturers are using full-speed |
1517 |
+ * bInterval values in high-speed interrupt endpoint |
1518 |
+- * descriptors. Try to fix those and fall back to a |
1519 |
+- * 32 ms default value otherwise. */ |
1520 |
++ * descriptors. Try to fix those and fall back to an |
1521 |
++ * 8-ms default value otherwise. |
1522 |
++ */ |
1523 |
+ n = fls(d->bInterval*8); |
1524 |
+ if (n == 0) |
1525 |
+- n = 9; /* 32 ms = 2^(9-1) uframes */ |
1526 |
++ n = 7; /* 8 ms = 2^(7-1) uframes */ |
1527 |
+ j = 16; |
1528 |
+ |
1529 |
+ /* |
1530 |
+@@ -214,10 +218,12 @@ static int usb_parse_endpoint(struct device *ddev, int cfgno, int inum, |
1531 |
+ } |
1532 |
+ break; |
1533 |
+ default: /* USB_SPEED_FULL or _LOW */ |
1534 |
+- /* For low-speed, 10 ms is the official minimum. |
1535 |
++ /* |
1536 |
++ * For low-speed, 10 ms is the official minimum. |
1537 |
+ * But some "overclocked" devices might want faster |
1538 |
+- * polling so we'll allow it. */ |
1539 |
+- n = 32; |
1540 |
++ * polling so we'll allow it. |
1541 |
++ */ |
1542 |
++ n = 10; |
1543 |
+ break; |
1544 |
+ } |
1545 |
+ } else if (usb_endpoint_xfer_isoc(d)) { |
1546 |
+@@ -225,10 +231,10 @@ static int usb_parse_endpoint(struct device *ddev, int cfgno, int inum, |
1547 |
+ j = 16; |
1548 |
+ switch (to_usb_device(ddev)->speed) { |
1549 |
+ case USB_SPEED_HIGH: |
1550 |
+- n = 9; /* 32 ms = 2^(9-1) uframes */ |
1551 |
++ n = 7; /* 8 ms = 2^(7-1) uframes */ |
1552 |
+ break; |
1553 |
+ default: /* USB_SPEED_FULL */ |
1554 |
+- n = 6; /* 32 ms = 2^(6-1) frames */ |
1555 |
++ n = 4; /* 8 ms = 2^(4-1) frames */ |
1556 |
+ break; |
1557 |
+ } |
1558 |
+ } |
1559 |
+diff --git a/drivers/usb/host/xhci-ring.c b/drivers/usb/host/xhci-ring.c |
1560 |
+index 51ff57497b91..c15dbffe660b 100644 |
1561 |
+--- a/drivers/usb/host/xhci-ring.c |
1562 |
++++ b/drivers/usb/host/xhci-ring.c |
1563 |
+@@ -839,6 +839,10 @@ void xhci_stop_endpoint_command_watchdog(unsigned long arg) |
1564 |
+ spin_lock_irqsave(&xhci->lock, flags); |
1565 |
+ |
1566 |
+ ep->stop_cmds_pending--; |
1567 |
++ if (xhci->xhc_state & XHCI_STATE_REMOVING) { |
1568 |
++ spin_unlock_irqrestore(&xhci->lock, flags); |
1569 |
++ return; |
1570 |
++ } |
1571 |
+ if (xhci->xhc_state & XHCI_STATE_DYING) { |
1572 |
+ xhci_dbg_trace(xhci, trace_xhci_dbg_cancel_urb, |
1573 |
+ "Stop EP timer ran, but another timer marked " |
1574 |
+@@ -892,7 +896,7 @@ void xhci_stop_endpoint_command_watchdog(unsigned long arg) |
1575 |
+ spin_unlock_irqrestore(&xhci->lock, flags); |
1576 |
+ xhci_dbg_trace(xhci, trace_xhci_dbg_cancel_urb, |
1577 |
+ "Calling usb_hc_died()"); |
1578 |
+- usb_hc_died(xhci_to_hcd(xhci)->primary_hcd); |
1579 |
++ usb_hc_died(xhci_to_hcd(xhci)); |
1580 |
+ xhci_dbg_trace(xhci, trace_xhci_dbg_cancel_urb, |
1581 |
+ "xHCI host controller is dead."); |
1582 |
+ } |
1583 |
+diff --git a/drivers/usb/renesas_usbhs/mod.c b/drivers/usb/renesas_usbhs/mod.c |
1584 |
+index 9a705b15b3a1..cf274b8c63fe 100644 |
1585 |
+--- a/drivers/usb/renesas_usbhs/mod.c |
1586 |
++++ b/drivers/usb/renesas_usbhs/mod.c |
1587 |
+@@ -277,9 +277,16 @@ static irqreturn_t usbhs_interrupt(int irq, void *data) |
1588 |
+ usbhs_write(priv, INTSTS0, ~irq_state.intsts0 & INTSTS0_MAGIC); |
1589 |
+ usbhs_write(priv, INTSTS1, ~irq_state.intsts1 & INTSTS1_MAGIC); |
1590 |
+ |
1591 |
+- usbhs_write(priv, BRDYSTS, ~irq_state.brdysts); |
1592 |
++ /* |
1593 |
++ * The driver should not clear the xxxSTS after the line of |
1594 |
++ * "call irq callback functions" because each "if" statement is |
1595 |
++ * possible to call the callback function for avoiding any side effects. |
1596 |
++ */ |
1597 |
++ if (irq_state.intsts0 & BRDY) |
1598 |
++ usbhs_write(priv, BRDYSTS, ~irq_state.brdysts); |
1599 |
+ usbhs_write(priv, NRDYSTS, ~irq_state.nrdysts); |
1600 |
+- usbhs_write(priv, BEMPSTS, ~irq_state.bempsts); |
1601 |
++ if (irq_state.intsts0 & BEMP) |
1602 |
++ usbhs_write(priv, BEMPSTS, ~irq_state.bempsts); |
1603 |
+ |
1604 |
+ /* |
1605 |
+ * call irq callback functions |
1606 |
+diff --git a/drivers/usb/serial/usb-serial-simple.c b/drivers/usb/serial/usb-serial-simple.c |
1607 |
+index a1f2e2a05bc5..40de275cddf4 100644 |
1608 |
+--- a/drivers/usb/serial/usb-serial-simple.c |
1609 |
++++ b/drivers/usb/serial/usb-serial-simple.c |
1610 |
+@@ -54,7 +54,8 @@ DEVICE(funsoft, FUNSOFT_IDS); |
1611 |
+ /* Infineon Flashloader driver */ |
1612 |
+ #define FLASHLOADER_IDS() \ |
1613 |
+ { USB_DEVICE_INTERFACE_CLASS(0x058b, 0x0041, USB_CLASS_CDC_DATA) }, \ |
1614 |
+- { USB_DEVICE(0x8087, 0x0716) } |
1615 |
++ { USB_DEVICE(0x8087, 0x0716) }, \ |
1616 |
++ { USB_DEVICE(0x8087, 0x0801) } |
1617 |
+ DEVICE(flashloader, FLASHLOADER_IDS); |
1618 |
+ |
1619 |
+ /* ViVOpay USB Serial Driver */ |
1620 |
+diff --git a/fs/autofs4/autofs_i.h b/fs/autofs4/autofs_i.h |
1621 |
+index 8e98cf954bab..cecd252a3e01 100644 |
1622 |
+--- a/fs/autofs4/autofs_i.h |
1623 |
++++ b/fs/autofs4/autofs_i.h |
1624 |
+@@ -79,9 +79,13 @@ struct autofs_info { |
1625 |
+ }; |
1626 |
+ |
1627 |
+ #define AUTOFS_INF_EXPIRING (1<<0) /* dentry is in the process of expiring */ |
1628 |
+-#define AUTOFS_INF_NO_RCU (1<<1) /* the dentry is being considered |
1629 |
++#define AUTOFS_INF_WANT_EXPIRE (1<<1) /* the dentry is being considered |
1630 |
+ * for expiry, so RCU_walk is |
1631 |
+- * not permitted |
1632 |
++ * not permitted. If it progresses to |
1633 |
++ * actual expiry attempt, the flag is |
1634 |
++ * not cleared when EXPIRING is set - |
1635 |
++ * in that case it gets cleared only |
1636 |
++ * when it comes to clearing EXPIRING. |
1637 |
+ */ |
1638 |
+ #define AUTOFS_INF_PENDING (1<<2) /* dentry pending mount */ |
1639 |
+ |
1640 |
+diff --git a/fs/autofs4/expire.c b/fs/autofs4/expire.c |
1641 |
+index dcdec6fd33c6..513b8e5d151c 100644 |
1642 |
+--- a/fs/autofs4/expire.c |
1643 |
++++ b/fs/autofs4/expire.c |
1644 |
+@@ -321,19 +321,17 @@ struct dentry *autofs4_expire_direct(struct super_block *sb, |
1645 |
+ if (ino->flags & AUTOFS_INF_PENDING) |
1646 |
+ goto out; |
1647 |
+ if (!autofs4_direct_busy(mnt, root, timeout, do_now)) { |
1648 |
+- ino->flags |= AUTOFS_INF_NO_RCU; |
1649 |
++ ino->flags |= AUTOFS_INF_WANT_EXPIRE; |
1650 |
+ spin_unlock(&sbi->fs_lock); |
1651 |
+ synchronize_rcu(); |
1652 |
+ spin_lock(&sbi->fs_lock); |
1653 |
+ if (!autofs4_direct_busy(mnt, root, timeout, do_now)) { |
1654 |
+ ino->flags |= AUTOFS_INF_EXPIRING; |
1655 |
+- smp_mb(); |
1656 |
+- ino->flags &= ~AUTOFS_INF_NO_RCU; |
1657 |
+ init_completion(&ino->expire_complete); |
1658 |
+ spin_unlock(&sbi->fs_lock); |
1659 |
+ return root; |
1660 |
+ } |
1661 |
+- ino->flags &= ~AUTOFS_INF_NO_RCU; |
1662 |
++ ino->flags &= ~AUTOFS_INF_WANT_EXPIRE; |
1663 |
+ } |
1664 |
+ out: |
1665 |
+ spin_unlock(&sbi->fs_lock); |
1666 |
+@@ -425,6 +423,7 @@ static struct dentry *should_expire(struct dentry *dentry, |
1667 |
+ } |
1668 |
+ return NULL; |
1669 |
+ } |
1670 |
++ |
1671 |
+ /* |
1672 |
+ * Find an eligible tree to time-out |
1673 |
+ * A tree is eligible if :- |
1674 |
+@@ -440,6 +439,7 @@ struct dentry *autofs4_expire_indirect(struct super_block *sb, |
1675 |
+ struct dentry *root = sb->s_root; |
1676 |
+ struct dentry *dentry; |
1677 |
+ struct dentry *expired; |
1678 |
++ struct dentry *found; |
1679 |
+ struct autofs_info *ino; |
1680 |
+ |
1681 |
+ if (!root) |
1682 |
+@@ -450,31 +450,46 @@ struct dentry *autofs4_expire_indirect(struct super_block *sb, |
1683 |
+ |
1684 |
+ dentry = NULL; |
1685 |
+ while ((dentry = get_next_positive_subdir(dentry, root))) { |
1686 |
++ int flags = how; |
1687 |
++ |
1688 |
+ spin_lock(&sbi->fs_lock); |
1689 |
+ ino = autofs4_dentry_ino(dentry); |
1690 |
+- if (ino->flags & AUTOFS_INF_NO_RCU) |
1691 |
+- expired = NULL; |
1692 |
+- else |
1693 |
+- expired = should_expire(dentry, mnt, timeout, how); |
1694 |
+- if (!expired) { |
1695 |
++ if (ino->flags & AUTOFS_INF_WANT_EXPIRE) { |
1696 |
+ spin_unlock(&sbi->fs_lock); |
1697 |
+ continue; |
1698 |
+ } |
1699 |
++ spin_unlock(&sbi->fs_lock); |
1700 |
++ |
1701 |
++ expired = should_expire(dentry, mnt, timeout, flags); |
1702 |
++ if (!expired) |
1703 |
++ continue; |
1704 |
++ |
1705 |
++ spin_lock(&sbi->fs_lock); |
1706 |
+ ino = autofs4_dentry_ino(expired); |
1707 |
+- ino->flags |= AUTOFS_INF_NO_RCU; |
1708 |
++ ino->flags |= AUTOFS_INF_WANT_EXPIRE; |
1709 |
+ spin_unlock(&sbi->fs_lock); |
1710 |
+ synchronize_rcu(); |
1711 |
+- spin_lock(&sbi->fs_lock); |
1712 |
+- if (should_expire(expired, mnt, timeout, how)) { |
1713 |
+- if (expired != dentry) |
1714 |
+- dput(dentry); |
1715 |
+- goto found; |
1716 |
+- } |
1717 |
+ |
1718 |
+- ino->flags &= ~AUTOFS_INF_NO_RCU; |
1719 |
++ /* Make sure a reference is not taken on found if |
1720 |
++ * things have changed. |
1721 |
++ */ |
1722 |
++ flags &= ~AUTOFS_EXP_LEAVES; |
1723 |
++ found = should_expire(expired, mnt, timeout, how); |
1724 |
++ if (!found || found != expired) |
1725 |
++ /* Something has changed, continue */ |
1726 |
++ goto next; |
1727 |
++ |
1728 |
+ if (expired != dentry) |
1729 |
+- dput(expired); |
1730 |
++ dput(dentry); |
1731 |
++ |
1732 |
++ spin_lock(&sbi->fs_lock); |
1733 |
++ goto found; |
1734 |
++next: |
1735 |
++ spin_lock(&sbi->fs_lock); |
1736 |
++ ino->flags &= ~AUTOFS_INF_WANT_EXPIRE; |
1737 |
+ spin_unlock(&sbi->fs_lock); |
1738 |
++ if (expired != dentry) |
1739 |
++ dput(expired); |
1740 |
+ } |
1741 |
+ return NULL; |
1742 |
+ |
1743 |
+@@ -482,17 +497,8 @@ found: |
1744 |
+ DPRINTK("returning %p %.*s", |
1745 |
+ expired, (int)expired->d_name.len, expired->d_name.name); |
1746 |
+ ino->flags |= AUTOFS_INF_EXPIRING; |
1747 |
+- smp_mb(); |
1748 |
+- ino->flags &= ~AUTOFS_INF_NO_RCU; |
1749 |
+ init_completion(&ino->expire_complete); |
1750 |
+ spin_unlock(&sbi->fs_lock); |
1751 |
+- spin_lock(&sbi->lookup_lock); |
1752 |
+- spin_lock(&expired->d_parent->d_lock); |
1753 |
+- spin_lock_nested(&expired->d_lock, DENTRY_D_LOCK_NESTED); |
1754 |
+- list_move(&expired->d_parent->d_subdirs, &expired->d_child); |
1755 |
+- spin_unlock(&expired->d_lock); |
1756 |
+- spin_unlock(&expired->d_parent->d_lock); |
1757 |
+- spin_unlock(&sbi->lookup_lock); |
1758 |
+ return expired; |
1759 |
+ } |
1760 |
+ |
1761 |
+@@ -501,15 +507,27 @@ int autofs4_expire_wait(struct dentry *dentry, int rcu_walk) |
1762 |
+ struct autofs_sb_info *sbi = autofs4_sbi(dentry->d_sb); |
1763 |
+ struct autofs_info *ino = autofs4_dentry_ino(dentry); |
1764 |
+ int status; |
1765 |
++ int state; |
1766 |
+ |
1767 |
+ /* Block on any pending expire */ |
1768 |
+- if (!(ino->flags & (AUTOFS_INF_EXPIRING | AUTOFS_INF_NO_RCU))) |
1769 |
++ if (!(ino->flags & AUTOFS_INF_WANT_EXPIRE)) |
1770 |
+ return 0; |
1771 |
+ if (rcu_walk) |
1772 |
+ return -ECHILD; |
1773 |
+ |
1774 |
++retry: |
1775 |
+ spin_lock(&sbi->fs_lock); |
1776 |
+- if (ino->flags & AUTOFS_INF_EXPIRING) { |
1777 |
++ state = ino->flags & (AUTOFS_INF_WANT_EXPIRE | AUTOFS_INF_EXPIRING); |
1778 |
++ if (state == AUTOFS_INF_WANT_EXPIRE) { |
1779 |
++ spin_unlock(&sbi->fs_lock); |
1780 |
++ /* |
1781 |
++ * Possibly being selected for expire, wait until |
1782 |
++ * it's selected or not. |
1783 |
++ */ |
1784 |
++ schedule_timeout_uninterruptible(HZ/10); |
1785 |
++ goto retry; |
1786 |
++ } |
1787 |
++ if (state & AUTOFS_INF_EXPIRING) { |
1788 |
+ spin_unlock(&sbi->fs_lock); |
1789 |
+ |
1790 |
+ DPRINTK("waiting for expire %p name=%.*s", |
1791 |
+@@ -561,7 +579,7 @@ int autofs4_expire_run(struct super_block *sb, |
1792 |
+ ino = autofs4_dentry_ino(dentry); |
1793 |
+ /* avoid rapid-fire expire attempts if expiry fails */ |
1794 |
+ ino->last_used = now; |
1795 |
+- ino->flags &= ~AUTOFS_INF_EXPIRING; |
1796 |
++ ino->flags &= ~(AUTOFS_INF_EXPIRING|AUTOFS_INF_WANT_EXPIRE); |
1797 |
+ complete_all(&ino->expire_complete); |
1798 |
+ spin_unlock(&sbi->fs_lock); |
1799 |
+ |
1800 |
+@@ -589,7 +607,7 @@ int autofs4_do_expire_multi(struct super_block *sb, struct vfsmount *mnt, |
1801 |
+ spin_lock(&sbi->fs_lock); |
1802 |
+ /* avoid rapid-fire expire attempts if expiry fails */ |
1803 |
+ ino->last_used = now; |
1804 |
+- ino->flags &= ~AUTOFS_INF_EXPIRING; |
1805 |
++ ino->flags &= ~(AUTOFS_INF_EXPIRING|AUTOFS_INF_WANT_EXPIRE); |
1806 |
+ complete_all(&ino->expire_complete); |
1807 |
+ spin_unlock(&sbi->fs_lock); |
1808 |
+ dput(dentry); |
1809 |
+diff --git a/fs/autofs4/root.c b/fs/autofs4/root.c |
1810 |
+index 0822c9eacc56..21b5bb13af65 100644 |
1811 |
+--- a/fs/autofs4/root.c |
1812 |
++++ b/fs/autofs4/root.c |
1813 |
+@@ -459,7 +459,7 @@ static int autofs4_d_manage(struct dentry *dentry, bool rcu_walk) |
1814 |
+ * a mount-trap. |
1815 |
+ */ |
1816 |
+ struct inode *inode; |
1817 |
+- if (ino->flags & (AUTOFS_INF_EXPIRING | AUTOFS_INF_NO_RCU)) |
1818 |
++ if (ino->flags & AUTOFS_INF_WANT_EXPIRE) |
1819 |
+ return 0; |
1820 |
+ if (d_mountpoint(dentry)) |
1821 |
+ return 0; |
1822 |
+diff --git a/fs/btrfs/ioctl.c b/fs/btrfs/ioctl.c |
1823 |
+index d96b2bc444c8..dd8526a659f8 100644 |
1824 |
+--- a/fs/btrfs/ioctl.c |
1825 |
++++ b/fs/btrfs/ioctl.c |
1826 |
+@@ -1627,6 +1627,9 @@ static noinline int btrfs_ioctl_snap_create_transid(struct file *file, |
1827 |
+ int namelen; |
1828 |
+ int ret = 0; |
1829 |
+ |
1830 |
++ if (!S_ISDIR(file_inode(file)->i_mode)) |
1831 |
++ return -ENOTDIR; |
1832 |
++ |
1833 |
+ ret = mnt_want_write_file(file); |
1834 |
+ if (ret) |
1835 |
+ goto out; |
1836 |
+@@ -1684,6 +1687,9 @@ static noinline int btrfs_ioctl_snap_create(struct file *file, |
1837 |
+ struct btrfs_ioctl_vol_args *vol_args; |
1838 |
+ int ret; |
1839 |
+ |
1840 |
++ if (!S_ISDIR(file_inode(file)->i_mode)) |
1841 |
++ return -ENOTDIR; |
1842 |
++ |
1843 |
+ vol_args = memdup_user(arg, sizeof(*vol_args)); |
1844 |
+ if (IS_ERR(vol_args)) |
1845 |
+ return PTR_ERR(vol_args); |
1846 |
+@@ -1707,6 +1713,9 @@ static noinline int btrfs_ioctl_snap_create_v2(struct file *file, |
1847 |
+ bool readonly = false; |
1848 |
+ struct btrfs_qgroup_inherit *inherit = NULL; |
1849 |
+ |
1850 |
++ if (!S_ISDIR(file_inode(file)->i_mode)) |
1851 |
++ return -ENOTDIR; |
1852 |
++ |
1853 |
+ vol_args = memdup_user(arg, sizeof(*vol_args)); |
1854 |
+ if (IS_ERR(vol_args)) |
1855 |
+ return PTR_ERR(vol_args); |
1856 |
+@@ -2335,6 +2344,9 @@ static noinline int btrfs_ioctl_snap_destroy(struct file *file, |
1857 |
+ int ret; |
1858 |
+ int err = 0; |
1859 |
+ |
1860 |
++ if (!S_ISDIR(dir->i_mode)) |
1861 |
++ return -ENOTDIR; |
1862 |
++ |
1863 |
+ vol_args = memdup_user(arg, sizeof(*vol_args)); |
1864 |
+ if (IS_ERR(vol_args)) |
1865 |
+ return PTR_ERR(vol_args); |
1866 |
+diff --git a/fs/btrfs/tree-log.c b/fs/btrfs/tree-log.c |
1867 |
+index f6c20cf6090e..ccad76a482ca 100644 |
1868 |
+--- a/fs/btrfs/tree-log.c |
1869 |
++++ b/fs/btrfs/tree-log.c |
1870 |
+@@ -2604,6 +2604,8 @@ int btrfs_sync_log(struct btrfs_trans_handle *trans, |
1871 |
+ } |
1872 |
+ |
1873 |
+ if (log_root_tree->log_transid_committed >= root_log_ctx.log_transid) { |
1874 |
++ blk_finish_plug(&plug); |
1875 |
++ list_del_init(&root_log_ctx.list); |
1876 |
+ mutex_unlock(&log_root_tree->log_mutex); |
1877 |
+ ret = root_log_ctx.log_ret; |
1878 |
+ goto out; |
1879 |
+diff --git a/fs/notify/fanotify/fanotify.c b/fs/notify/fanotify/fanotify.c |
1880 |
+index 30d3addfad75..f6298b974316 100644 |
1881 |
+--- a/fs/notify/fanotify/fanotify.c |
1882 |
++++ b/fs/notify/fanotify/fanotify.c |
1883 |
+@@ -67,18 +67,7 @@ static int fanotify_get_response(struct fsnotify_group *group, |
1884 |
+ |
1885 |
+ pr_debug("%s: group=%p event=%p\n", __func__, group, event); |
1886 |
+ |
1887 |
+- wait_event(group->fanotify_data.access_waitq, event->response || |
1888 |
+- atomic_read(&group->fanotify_data.bypass_perm)); |
1889 |
+- |
1890 |
+- if (!event->response) { /* bypass_perm set */ |
1891 |
+- /* |
1892 |
+- * Event was canceled because group is being destroyed. Remove |
1893 |
+- * it from group's event list because we are responsible for |
1894 |
+- * freeing the permission event. |
1895 |
+- */ |
1896 |
+- fsnotify_remove_event(group, &event->fae.fse); |
1897 |
+- return 0; |
1898 |
+- } |
1899 |
++ wait_event(group->fanotify_data.access_waitq, event->response); |
1900 |
+ |
1901 |
+ /* userspace responded, convert to something usable */ |
1902 |
+ switch (event->response) { |
1903 |
+diff --git a/fs/notify/fanotify/fanotify_user.c b/fs/notify/fanotify/fanotify_user.c |
1904 |
+index c991616acca9..f2639f5724e8 100644 |
1905 |
+--- a/fs/notify/fanotify/fanotify_user.c |
1906 |
++++ b/fs/notify/fanotify/fanotify_user.c |
1907 |
+@@ -358,16 +358,20 @@ static int fanotify_release(struct inode *ignored, struct file *file) |
1908 |
+ |
1909 |
+ #ifdef CONFIG_FANOTIFY_ACCESS_PERMISSIONS |
1910 |
+ struct fanotify_perm_event_info *event, *next; |
1911 |
++ struct fsnotify_event *fsn_event; |
1912 |
+ |
1913 |
+ /* |
1914 |
+- * There may be still new events arriving in the notification queue |
1915 |
+- * but since userspace cannot use fanotify fd anymore, no event can |
1916 |
+- * enter or leave access_list by now. |
1917 |
++ * Stop new events from arriving in the notification queue. since |
1918 |
++ * userspace cannot use fanotify fd anymore, no event can enter or |
1919 |
++ * leave access_list by now either. |
1920 |
+ */ |
1921 |
+- spin_lock(&group->fanotify_data.access_lock); |
1922 |
+- |
1923 |
+- atomic_inc(&group->fanotify_data.bypass_perm); |
1924 |
++ fsnotify_group_stop_queueing(group); |
1925 |
+ |
1926 |
++ /* |
1927 |
++ * Process all permission events on access_list and notification queue |
1928 |
++ * and simulate reply from userspace. |
1929 |
++ */ |
1930 |
++ spin_lock(&group->fanotify_data.access_lock); |
1931 |
+ list_for_each_entry_safe(event, next, &group->fanotify_data.access_list, |
1932 |
+ fae.fse.list) { |
1933 |
+ pr_debug("%s: found group=%p event=%p\n", __func__, group, |
1934 |
+@@ -379,12 +383,21 @@ static int fanotify_release(struct inode *ignored, struct file *file) |
1935 |
+ spin_unlock(&group->fanotify_data.access_lock); |
1936 |
+ |
1937 |
+ /* |
1938 |
+- * Since bypass_perm is set, newly queued events will not wait for |
1939 |
+- * access response. Wake up the already sleeping ones now. |
1940 |
+- * synchronize_srcu() in fsnotify_destroy_group() will wait for all |
1941 |
+- * processes sleeping in fanotify_handle_event() waiting for access |
1942 |
+- * response and thus also for all permission events to be freed. |
1943 |
++ * Destroy all non-permission events. For permission events just |
1944 |
++ * dequeue them and set the response. They will be freed once the |
1945 |
++ * response is consumed and fanotify_get_response() returns. |
1946 |
+ */ |
1947 |
++ mutex_lock(&group->notification_mutex); |
1948 |
++ while (!fsnotify_notify_queue_is_empty(group)) { |
1949 |
++ fsn_event = fsnotify_remove_first_event(group); |
1950 |
++ if (!(fsn_event->mask & FAN_ALL_PERM_EVENTS)) |
1951 |
++ fsnotify_destroy_event(group, fsn_event); |
1952 |
++ else |
1953 |
++ FANOTIFY_PE(fsn_event)->response = FAN_ALLOW; |
1954 |
++ } |
1955 |
++ mutex_unlock(&group->notification_mutex); |
1956 |
++ |
1957 |
++ /* Response for all permission events it set, wakeup waiters */ |
1958 |
+ wake_up(&group->fanotify_data.access_waitq); |
1959 |
+ #endif |
1960 |
+ |
1961 |
+@@ -742,7 +755,6 @@ SYSCALL_DEFINE2(fanotify_init, unsigned int, flags, unsigned int, event_f_flags) |
1962 |
+ spin_lock_init(&group->fanotify_data.access_lock); |
1963 |
+ init_waitqueue_head(&group->fanotify_data.access_waitq); |
1964 |
+ INIT_LIST_HEAD(&group->fanotify_data.access_list); |
1965 |
+- atomic_set(&group->fanotify_data.bypass_perm, 0); |
1966 |
+ #endif |
1967 |
+ switch (flags & FAN_ALL_CLASS_BITS) { |
1968 |
+ case FAN_CLASS_NOTIF: |
1969 |
+diff --git a/fs/notify/group.c b/fs/notify/group.c |
1970 |
+index d16b62cb2854..18eb30c6bd8f 100644 |
1971 |
+--- a/fs/notify/group.c |
1972 |
++++ b/fs/notify/group.c |
1973 |
+@@ -40,6 +40,17 @@ static void fsnotify_final_destroy_group(struct fsnotify_group *group) |
1974 |
+ } |
1975 |
+ |
1976 |
+ /* |
1977 |
++ * Stop queueing new events for this group. Once this function returns |
1978 |
++ * fsnotify_add_event() will not add any new events to the group's queue. |
1979 |
++ */ |
1980 |
++void fsnotify_group_stop_queueing(struct fsnotify_group *group) |
1981 |
++{ |
1982 |
++ mutex_lock(&group->notification_mutex); |
1983 |
++ group->shutdown = true; |
1984 |
++ mutex_unlock(&group->notification_mutex); |
1985 |
++} |
1986 |
++ |
1987 |
++/* |
1988 |
+ * Trying to get rid of a group. Remove all marks, flush all events and release |
1989 |
+ * the group reference. |
1990 |
+ * Note that another thread calling fsnotify_clear_marks_by_group() may still |
1991 |
+@@ -47,6 +58,14 @@ static void fsnotify_final_destroy_group(struct fsnotify_group *group) |
1992 |
+ */ |
1993 |
+ void fsnotify_destroy_group(struct fsnotify_group *group) |
1994 |
+ { |
1995 |
++ /* |
1996 |
++ * Stop queueing new events. The code below is careful enough to not |
1997 |
++ * require this but fanotify needs to stop queuing events even before |
1998 |
++ * fsnotify_destroy_group() is called and this makes the other callers |
1999 |
++ * of fsnotify_destroy_group() to see the same behavior. |
2000 |
++ */ |
2001 |
++ fsnotify_group_stop_queueing(group); |
2002 |
++ |
2003 |
+ /* clear all inode marks for this group */ |
2004 |
+ fsnotify_clear_marks_by_group(group); |
2005 |
+ |
2006 |
+diff --git a/fs/notify/notification.c b/fs/notify/notification.c |
2007 |
+index a95d8e037aeb..e455e83ceeeb 100644 |
2008 |
+--- a/fs/notify/notification.c |
2009 |
++++ b/fs/notify/notification.c |
2010 |
+@@ -82,7 +82,8 @@ void fsnotify_destroy_event(struct fsnotify_group *group, |
2011 |
+ * Add an event to the group notification queue. The group can later pull this |
2012 |
+ * event off the queue to deal with. The function returns 0 if the event was |
2013 |
+ * added to the queue, 1 if the event was merged with some other queued event, |
2014 |
+- * 2 if the queue of events has overflown. |
2015 |
++ * 2 if the event was not queued - either the queue of events has overflown |
2016 |
++ * or the group is shutting down. |
2017 |
+ */ |
2018 |
+ int fsnotify_add_event(struct fsnotify_group *group, |
2019 |
+ struct fsnotify_event *event, |
2020 |
+@@ -96,6 +97,11 @@ int fsnotify_add_event(struct fsnotify_group *group, |
2021 |
+ |
2022 |
+ mutex_lock(&group->notification_mutex); |
2023 |
+ |
2024 |
++ if (group->shutdown) { |
2025 |
++ mutex_unlock(&group->notification_mutex); |
2026 |
++ return 2; |
2027 |
++ } |
2028 |
++ |
2029 |
+ if (group->q_len >= group->max_events) { |
2030 |
+ ret = 2; |
2031 |
+ /* Queue overflow event only if it isn't already queued */ |
2032 |
+@@ -126,21 +132,6 @@ queue: |
2033 |
+ } |
2034 |
+ |
2035 |
+ /* |
2036 |
+- * Remove @event from group's notification queue. It is the responsibility of |
2037 |
+- * the caller to destroy the event. |
2038 |
+- */ |
2039 |
+-void fsnotify_remove_event(struct fsnotify_group *group, |
2040 |
+- struct fsnotify_event *event) |
2041 |
+-{ |
2042 |
+- mutex_lock(&group->notification_mutex); |
2043 |
+- if (!list_empty(&event->list)) { |
2044 |
+- list_del_init(&event->list); |
2045 |
+- group->q_len--; |
2046 |
+- } |
2047 |
+- mutex_unlock(&group->notification_mutex); |
2048 |
+-} |
2049 |
+- |
2050 |
+-/* |
2051 |
+ * Remove and return the first event from the notification list. It is the |
2052 |
+ * responsibility of the caller to destroy the obtained event |
2053 |
+ */ |
2054 |
+diff --git a/fs/ocfs2/dlm/dlmconvert.c b/fs/ocfs2/dlm/dlmconvert.c |
2055 |
+index f90931335c6b..2e11658676eb 100644 |
2056 |
+--- a/fs/ocfs2/dlm/dlmconvert.c |
2057 |
++++ b/fs/ocfs2/dlm/dlmconvert.c |
2058 |
+@@ -262,7 +262,6 @@ enum dlm_status dlmconvert_remote(struct dlm_ctxt *dlm, |
2059 |
+ struct dlm_lock *lock, int flags, int type) |
2060 |
+ { |
2061 |
+ enum dlm_status status; |
2062 |
+- u8 old_owner = res->owner; |
2063 |
+ |
2064 |
+ mlog(0, "type=%d, convert_type=%d, busy=%d\n", lock->ml.type, |
2065 |
+ lock->ml.convert_type, res->state & DLM_LOCK_RES_IN_PROGRESS); |
2066 |
+@@ -329,7 +328,6 @@ enum dlm_status dlmconvert_remote(struct dlm_ctxt *dlm, |
2067 |
+ |
2068 |
+ spin_lock(&res->spinlock); |
2069 |
+ res->state &= ~DLM_LOCK_RES_IN_PROGRESS; |
2070 |
+- lock->convert_pending = 0; |
2071 |
+ /* if it failed, move it back to granted queue. |
2072 |
+ * if master returns DLM_NORMAL and then down before sending ast, |
2073 |
+ * it may have already been moved to granted queue, reset to |
2074 |
+@@ -338,12 +336,14 @@ enum dlm_status dlmconvert_remote(struct dlm_ctxt *dlm, |
2075 |
+ if (status != DLM_NOTQUEUED) |
2076 |
+ dlm_error(status); |
2077 |
+ dlm_revert_pending_convert(res, lock); |
2078 |
+- } else if ((res->state & DLM_LOCK_RES_RECOVERING) || |
2079 |
+- (old_owner != res->owner)) { |
2080 |
+- mlog(0, "res %.*s is in recovering or has been recovered.\n", |
2081 |
+- res->lockname.len, res->lockname.name); |
2082 |
++ } else if (!lock->convert_pending) { |
2083 |
++ mlog(0, "%s: res %.*s, owner died and lock has been moved back " |
2084 |
++ "to granted list, retry convert.\n", |
2085 |
++ dlm->name, res->lockname.len, res->lockname.name); |
2086 |
+ status = DLM_RECOVERING; |
2087 |
+ } |
2088 |
++ |
2089 |
++ lock->convert_pending = 0; |
2090 |
+ bail: |
2091 |
+ spin_unlock(&res->spinlock); |
2092 |
+ |
2093 |
+diff --git a/fs/ocfs2/file.c b/fs/ocfs2/file.c |
2094 |
+index 9d5adfd6b326..2adcb9876e91 100644 |
2095 |
+--- a/fs/ocfs2/file.c |
2096 |
++++ b/fs/ocfs2/file.c |
2097 |
+@@ -1515,7 +1515,8 @@ static int ocfs2_zero_partial_clusters(struct inode *inode, |
2098 |
+ u64 start, u64 len) |
2099 |
+ { |
2100 |
+ int ret = 0; |
2101 |
+- u64 tmpend, end = start + len; |
2102 |
++ u64 tmpend = 0; |
2103 |
++ u64 end = start + len; |
2104 |
+ struct ocfs2_super *osb = OCFS2_SB(inode->i_sb); |
2105 |
+ unsigned int csize = osb->s_clustersize; |
2106 |
+ handle_t *handle; |
2107 |
+@@ -1547,18 +1548,31 @@ static int ocfs2_zero_partial_clusters(struct inode *inode, |
2108 |
+ } |
2109 |
+ |
2110 |
+ /* |
2111 |
+- * We want to get the byte offset of the end of the 1st cluster. |
2112 |
++ * If start is on a cluster boundary and end is somewhere in another |
2113 |
++ * cluster, we have not COWed the cluster starting at start, unless |
2114 |
++ * end is also within the same cluster. So, in this case, we skip this |
2115 |
++ * first call to ocfs2_zero_range_for_truncate() truncate and move on |
2116 |
++ * to the next one. |
2117 |
+ */ |
2118 |
+- tmpend = (u64)osb->s_clustersize + (start & ~(osb->s_clustersize - 1)); |
2119 |
+- if (tmpend > end) |
2120 |
+- tmpend = end; |
2121 |
++ if ((start & (csize - 1)) != 0) { |
2122 |
++ /* |
2123 |
++ * We want to get the byte offset of the end of the 1st |
2124 |
++ * cluster. |
2125 |
++ */ |
2126 |
++ tmpend = (u64)osb->s_clustersize + |
2127 |
++ (start & ~(osb->s_clustersize - 1)); |
2128 |
++ if (tmpend > end) |
2129 |
++ tmpend = end; |
2130 |
+ |
2131 |
+- trace_ocfs2_zero_partial_clusters_range1((unsigned long long)start, |
2132 |
+- (unsigned long long)tmpend); |
2133 |
++ trace_ocfs2_zero_partial_clusters_range1( |
2134 |
++ (unsigned long long)start, |
2135 |
++ (unsigned long long)tmpend); |
2136 |
+ |
2137 |
+- ret = ocfs2_zero_range_for_truncate(inode, handle, start, tmpend); |
2138 |
+- if (ret) |
2139 |
+- mlog_errno(ret); |
2140 |
++ ret = ocfs2_zero_range_for_truncate(inode, handle, start, |
2141 |
++ tmpend); |
2142 |
++ if (ret) |
2143 |
++ mlog_errno(ret); |
2144 |
++ } |
2145 |
+ |
2146 |
+ if (tmpend < end) { |
2147 |
+ /* |
2148 |
+diff --git a/fs/overlayfs/super.c b/fs/overlayfs/super.c |
2149 |
+index 963dba388243..b5bddae27be2 100644 |
2150 |
+--- a/fs/overlayfs/super.c |
2151 |
++++ b/fs/overlayfs/super.c |
2152 |
+@@ -566,11 +566,11 @@ retry: |
2153 |
+ goto out_dput; |
2154 |
+ |
2155 |
+ err = vfs_removexattr(work, XATTR_NAME_POSIX_ACL_DEFAULT); |
2156 |
+- if (err && err != -ENODATA) |
2157 |
++ if (err && err != -ENODATA && err != -EOPNOTSUPP) |
2158 |
+ goto out_dput; |
2159 |
+ |
2160 |
+ err = vfs_removexattr(work, XATTR_NAME_POSIX_ACL_ACCESS); |
2161 |
+- if (err && err != -ENODATA) |
2162 |
++ if (err && err != -ENODATA && err != -EOPNOTSUPP) |
2163 |
+ goto out_dput; |
2164 |
+ |
2165 |
+ /* Clear any inherited mode bits */ |
2166 |
+diff --git a/include/asm-generic/uaccess.h b/include/asm-generic/uaccess.h |
2167 |
+index 72d8803832ff..32901d11f8c4 100644 |
2168 |
+--- a/include/asm-generic/uaccess.h |
2169 |
++++ b/include/asm-generic/uaccess.h |
2170 |
+@@ -163,9 +163,10 @@ static inline __must_check long __copy_to_user(void __user *to, |
2171 |
+ |
2172 |
+ #define put_user(x, ptr) \ |
2173 |
+ ({ \ |
2174 |
++ void *__p = (ptr); \ |
2175 |
+ might_fault(); \ |
2176 |
+- access_ok(VERIFY_WRITE, ptr, sizeof(*ptr)) ? \ |
2177 |
+- __put_user(x, ptr) : \ |
2178 |
++ access_ok(VERIFY_WRITE, __p, sizeof(*ptr)) ? \ |
2179 |
++ __put_user((x), ((__typeof__(*(ptr)) *)__p)) : \ |
2180 |
+ -EFAULT; \ |
2181 |
+ }) |
2182 |
+ |
2183 |
+@@ -225,17 +226,22 @@ extern int __put_user_bad(void) __attribute__((noreturn)); |
2184 |
+ |
2185 |
+ #define get_user(x, ptr) \ |
2186 |
+ ({ \ |
2187 |
++ const void *__p = (ptr); \ |
2188 |
+ might_fault(); \ |
2189 |
+- access_ok(VERIFY_READ, ptr, sizeof(*ptr)) ? \ |
2190 |
+- __get_user(x, ptr) : \ |
2191 |
+- -EFAULT; \ |
2192 |
++ access_ok(VERIFY_READ, __p, sizeof(*ptr)) ? \ |
2193 |
++ __get_user((x), (__typeof__(*(ptr)) *)__p) : \ |
2194 |
++ ((x) = (__typeof__(*(ptr)))0,-EFAULT); \ |
2195 |
+ }) |
2196 |
+ |
2197 |
+ #ifndef __get_user_fn |
2198 |
+ static inline int __get_user_fn(size_t size, const void __user *ptr, void *x) |
2199 |
+ { |
2200 |
+- size = __copy_from_user(x, ptr, size); |
2201 |
+- return size ? -EFAULT : size; |
2202 |
++ size_t n = __copy_from_user(x, ptr, size); |
2203 |
++ if (unlikely(n)) { |
2204 |
++ memset(x + (size - n), 0, n); |
2205 |
++ return -EFAULT; |
2206 |
++ } |
2207 |
++ return 0; |
2208 |
+ } |
2209 |
+ |
2210 |
+ #define __get_user_fn(sz, u, k) __get_user_fn(sz, u, k) |
2211 |
+@@ -255,11 +261,13 @@ extern int __get_user_bad(void) __attribute__((noreturn)); |
2212 |
+ static inline long copy_from_user(void *to, |
2213 |
+ const void __user * from, unsigned long n) |
2214 |
+ { |
2215 |
++ unsigned long res = n; |
2216 |
+ might_fault(); |
2217 |
+- if (access_ok(VERIFY_READ, from, n)) |
2218 |
+- return __copy_from_user(to, from, n); |
2219 |
+- else |
2220 |
+- return n; |
2221 |
++ if (likely(access_ok(VERIFY_READ, from, n))) |
2222 |
++ res = __copy_from_user(to, from, n); |
2223 |
++ if (unlikely(res)) |
2224 |
++ memset(to + (n - res), 0, res); |
2225 |
++ return res; |
2226 |
+ } |
2227 |
+ |
2228 |
+ static inline long copy_to_user(void __user *to, |
2229 |
+diff --git a/include/linux/fsnotify_backend.h b/include/linux/fsnotify_backend.h |
2230 |
+index ca060d7c4fa6..b36d7a908051 100644 |
2231 |
+--- a/include/linux/fsnotify_backend.h |
2232 |
++++ b/include/linux/fsnotify_backend.h |
2233 |
+@@ -150,6 +150,7 @@ struct fsnotify_group { |
2234 |
+ #define FS_PRIO_1 1 /* fanotify content based access control */ |
2235 |
+ #define FS_PRIO_2 2 /* fanotify pre-content access */ |
2236 |
+ unsigned int priority; |
2237 |
++ bool shutdown; /* group is being shut down, don't queue more events */ |
2238 |
+ |
2239 |
+ /* stores all fastpath marks assoc with this group so they can be cleaned on unregister */ |
2240 |
+ struct mutex mark_mutex; /* protect marks_list */ |
2241 |
+@@ -181,7 +182,6 @@ struct fsnotify_group { |
2242 |
+ spinlock_t access_lock; |
2243 |
+ struct list_head access_list; |
2244 |
+ wait_queue_head_t access_waitq; |
2245 |
+- atomic_t bypass_perm; |
2246 |
+ #endif /* CONFIG_FANOTIFY_ACCESS_PERMISSIONS */ |
2247 |
+ int f_flags; |
2248 |
+ unsigned int max_marks; |
2249 |
+@@ -314,6 +314,8 @@ extern struct fsnotify_group *fsnotify_alloc_group(const struct fsnotify_ops *op |
2250 |
+ extern void fsnotify_get_group(struct fsnotify_group *group); |
2251 |
+ /* drop reference on a group from fsnotify_alloc_group */ |
2252 |
+ extern void fsnotify_put_group(struct fsnotify_group *group); |
2253 |
++/* group destruction begins, stop queuing new events */ |
2254 |
++extern void fsnotify_group_stop_queueing(struct fsnotify_group *group); |
2255 |
+ /* destroy group */ |
2256 |
+ extern void fsnotify_destroy_group(struct fsnotify_group *group); |
2257 |
+ /* fasync handler function */ |
2258 |
+@@ -326,8 +328,6 @@ extern int fsnotify_add_event(struct fsnotify_group *group, |
2259 |
+ struct fsnotify_event *event, |
2260 |
+ int (*merge)(struct list_head *, |
2261 |
+ struct fsnotify_event *)); |
2262 |
+-/* Remove passed event from groups notification queue */ |
2263 |
+-extern void fsnotify_remove_event(struct fsnotify_group *group, struct fsnotify_event *event); |
2264 |
+ /* true if the group notification queue is empty */ |
2265 |
+ extern bool fsnotify_notify_queue_is_empty(struct fsnotify_group *group); |
2266 |
+ /* return, but do not dequeue the first event on the notification queue */ |
2267 |
+diff --git a/include/linux/irq.h b/include/linux/irq.h |
2268 |
+index 03f48d936f66..c91ce60746f7 100644 |
2269 |
+--- a/include/linux/irq.h |
2270 |
++++ b/include/linux/irq.h |
2271 |
+@@ -20,6 +20,7 @@ |
2272 |
+ #include <linux/errno.h> |
2273 |
+ #include <linux/topology.h> |
2274 |
+ #include <linux/wait.h> |
2275 |
++#include <linux/io.h> |
2276 |
+ |
2277 |
+ #include <asm/irq.h> |
2278 |
+ #include <asm/ptrace.h> |
2279 |
+@@ -639,13 +640,6 @@ void arch_teardown_hwirq(unsigned int irq); |
2280 |
+ void irq_init_desc(unsigned int irq); |
2281 |
+ #endif |
2282 |
+ |
2283 |
+-#ifndef irq_reg_writel |
2284 |
+-# define irq_reg_writel(val, addr) writel(val, addr) |
2285 |
+-#endif |
2286 |
+-#ifndef irq_reg_readl |
2287 |
+-# define irq_reg_readl(addr) readl(addr) |
2288 |
+-#endif |
2289 |
+- |
2290 |
+ /** |
2291 |
+ * struct irq_chip_regs - register offsets for struct irq_gci |
2292 |
+ * @enable: Enable register offset to reg_base |
2293 |
+@@ -821,4 +815,26 @@ static inline void irq_gc_lock(struct irq_chip_generic *gc) { } |
2294 |
+ static inline void irq_gc_unlock(struct irq_chip_generic *gc) { } |
2295 |
+ #endif |
2296 |
+ |
2297 |
++/* |
2298 |
++ * The irqsave variants are for usage in non interrupt code. Do not use |
2299 |
++ * them in irq_chip callbacks. Use irq_gc_lock() instead. |
2300 |
++ */ |
2301 |
++#define irq_gc_lock_irqsave(gc, flags) \ |
2302 |
++ raw_spin_lock_irqsave(&(gc)->lock, flags) |
2303 |
++ |
2304 |
++#define irq_gc_unlock_irqrestore(gc, flags) \ |
2305 |
++ raw_spin_unlock_irqrestore(&(gc)->lock, flags) |
2306 |
++ |
2307 |
++static inline void irq_reg_writel(struct irq_chip_generic *gc, |
2308 |
++ u32 val, int reg_offset) |
2309 |
++{ |
2310 |
++ writel(val, gc->reg_base + reg_offset); |
2311 |
++} |
2312 |
++ |
2313 |
++static inline u32 irq_reg_readl(struct irq_chip_generic *gc, |
2314 |
++ int reg_offset) |
2315 |
++{ |
2316 |
++ return readl(gc->reg_base + reg_offset); |
2317 |
++} |
2318 |
++ |
2319 |
+ #endif /* _LINUX_IRQ_H */ |
2320 |
+diff --git a/include/linux/pagemap.h b/include/linux/pagemap.h |
2321 |
+index 4b3736f7065c..30a8f531236c 100644 |
2322 |
+--- a/include/linux/pagemap.h |
2323 |
++++ b/include/linux/pagemap.h |
2324 |
+@@ -594,56 +594,56 @@ static inline int fault_in_pages_readable(const char __user *uaddr, int size) |
2325 |
+ */ |
2326 |
+ static inline int fault_in_multipages_writeable(char __user *uaddr, int size) |
2327 |
+ { |
2328 |
+- int ret = 0; |
2329 |
+ char __user *end = uaddr + size - 1; |
2330 |
+ |
2331 |
+ if (unlikely(size == 0)) |
2332 |
+- return ret; |
2333 |
++ return 0; |
2334 |
+ |
2335 |
++ if (unlikely(uaddr > end)) |
2336 |
++ return -EFAULT; |
2337 |
+ /* |
2338 |
+ * Writing zeroes into userspace here is OK, because we know that if |
2339 |
+ * the zero gets there, we'll be overwriting it. |
2340 |
+ */ |
2341 |
+- while (uaddr <= end) { |
2342 |
+- ret = __put_user(0, uaddr); |
2343 |
+- if (ret != 0) |
2344 |
+- return ret; |
2345 |
++ do { |
2346 |
++ if (unlikely(__put_user(0, uaddr) != 0)) |
2347 |
++ return -EFAULT; |
2348 |
+ uaddr += PAGE_SIZE; |
2349 |
+- } |
2350 |
++ } while (uaddr <= end); |
2351 |
+ |
2352 |
+ /* Check whether the range spilled into the next page. */ |
2353 |
+ if (((unsigned long)uaddr & PAGE_MASK) == |
2354 |
+ ((unsigned long)end & PAGE_MASK)) |
2355 |
+- ret = __put_user(0, end); |
2356 |
++ return __put_user(0, end); |
2357 |
+ |
2358 |
+- return ret; |
2359 |
++ return 0; |
2360 |
+ } |
2361 |
+ |
2362 |
+ static inline int fault_in_multipages_readable(const char __user *uaddr, |
2363 |
+ int size) |
2364 |
+ { |
2365 |
+ volatile char c; |
2366 |
+- int ret = 0; |
2367 |
+ const char __user *end = uaddr + size - 1; |
2368 |
+ |
2369 |
+ if (unlikely(size == 0)) |
2370 |
+- return ret; |
2371 |
++ return 0; |
2372 |
+ |
2373 |
+- while (uaddr <= end) { |
2374 |
+- ret = __get_user(c, uaddr); |
2375 |
+- if (ret != 0) |
2376 |
+- return ret; |
2377 |
++ if (unlikely(uaddr > end)) |
2378 |
++ return -EFAULT; |
2379 |
++ |
2380 |
++ do { |
2381 |
++ if (unlikely(__get_user(c, uaddr) != 0)) |
2382 |
++ return -EFAULT; |
2383 |
+ uaddr += PAGE_SIZE; |
2384 |
+- } |
2385 |
++ } while (uaddr <= end); |
2386 |
+ |
2387 |
+ /* Check whether the range spilled into the next page. */ |
2388 |
+ if (((unsigned long)uaddr & PAGE_MASK) == |
2389 |
+ ((unsigned long)end & PAGE_MASK)) { |
2390 |
+- ret = __get_user(c, end); |
2391 |
+- (void)c; |
2392 |
++ return __get_user(c, end); |
2393 |
+ } |
2394 |
+ |
2395 |
+- return ret; |
2396 |
++ return 0; |
2397 |
+ } |
2398 |
+ |
2399 |
+ int add_to_page_cache_locked(struct page *page, struct address_space *mapping, |
2400 |
+diff --git a/kernel/irq/generic-chip.c b/kernel/irq/generic-chip.c |
2401 |
+index cf80e7b0ddab..db458c68e392 100644 |
2402 |
+--- a/kernel/irq/generic-chip.c |
2403 |
++++ b/kernel/irq/generic-chip.c |
2404 |
+@@ -39,7 +39,7 @@ void irq_gc_mask_disable_reg(struct irq_data *d) |
2405 |
+ u32 mask = d->mask; |
2406 |
+ |
2407 |
+ irq_gc_lock(gc); |
2408 |
+- irq_reg_writel(mask, gc->reg_base + ct->regs.disable); |
2409 |
++ irq_reg_writel(gc, mask, ct->regs.disable); |
2410 |
+ *ct->mask_cache &= ~mask; |
2411 |
+ irq_gc_unlock(gc); |
2412 |
+ } |
2413 |
+@@ -59,7 +59,7 @@ void irq_gc_mask_set_bit(struct irq_data *d) |
2414 |
+ |
2415 |
+ irq_gc_lock(gc); |
2416 |
+ *ct->mask_cache |= mask; |
2417 |
+- irq_reg_writel(*ct->mask_cache, gc->reg_base + ct->regs.mask); |
2418 |
++ irq_reg_writel(gc, *ct->mask_cache, ct->regs.mask); |
2419 |
+ irq_gc_unlock(gc); |
2420 |
+ } |
2421 |
+ EXPORT_SYMBOL_GPL(irq_gc_mask_set_bit); |
2422 |
+@@ -79,7 +79,7 @@ void irq_gc_mask_clr_bit(struct irq_data *d) |
2423 |
+ |
2424 |
+ irq_gc_lock(gc); |
2425 |
+ *ct->mask_cache &= ~mask; |
2426 |
+- irq_reg_writel(*ct->mask_cache, gc->reg_base + ct->regs.mask); |
2427 |
++ irq_reg_writel(gc, *ct->mask_cache, ct->regs.mask); |
2428 |
+ irq_gc_unlock(gc); |
2429 |
+ } |
2430 |
+ EXPORT_SYMBOL_GPL(irq_gc_mask_clr_bit); |
2431 |
+@@ -98,7 +98,7 @@ void irq_gc_unmask_enable_reg(struct irq_data *d) |
2432 |
+ u32 mask = d->mask; |
2433 |
+ |
2434 |
+ irq_gc_lock(gc); |
2435 |
+- irq_reg_writel(mask, gc->reg_base + ct->regs.enable); |
2436 |
++ irq_reg_writel(gc, mask, ct->regs.enable); |
2437 |
+ *ct->mask_cache |= mask; |
2438 |
+ irq_gc_unlock(gc); |
2439 |
+ } |
2440 |
+@@ -114,7 +114,7 @@ void irq_gc_ack_set_bit(struct irq_data *d) |
2441 |
+ u32 mask = d->mask; |
2442 |
+ |
2443 |
+ irq_gc_lock(gc); |
2444 |
+- irq_reg_writel(mask, gc->reg_base + ct->regs.ack); |
2445 |
++ irq_reg_writel(gc, mask, ct->regs.ack); |
2446 |
+ irq_gc_unlock(gc); |
2447 |
+ } |
2448 |
+ EXPORT_SYMBOL_GPL(irq_gc_ack_set_bit); |
2449 |
+@@ -130,7 +130,7 @@ void irq_gc_ack_clr_bit(struct irq_data *d) |
2450 |
+ u32 mask = ~d->mask; |
2451 |
+ |
2452 |
+ irq_gc_lock(gc); |
2453 |
+- irq_reg_writel(mask, gc->reg_base + ct->regs.ack); |
2454 |
++ irq_reg_writel(gc, mask, ct->regs.ack); |
2455 |
+ irq_gc_unlock(gc); |
2456 |
+ } |
2457 |
+ |
2458 |
+@@ -145,8 +145,8 @@ void irq_gc_mask_disable_reg_and_ack(struct irq_data *d) |
2459 |
+ u32 mask = d->mask; |
2460 |
+ |
2461 |
+ irq_gc_lock(gc); |
2462 |
+- irq_reg_writel(mask, gc->reg_base + ct->regs.mask); |
2463 |
+- irq_reg_writel(mask, gc->reg_base + ct->regs.ack); |
2464 |
++ irq_reg_writel(gc, mask, ct->regs.mask); |
2465 |
++ irq_reg_writel(gc, mask, ct->regs.ack); |
2466 |
+ irq_gc_unlock(gc); |
2467 |
+ } |
2468 |
+ |
2469 |
+@@ -161,7 +161,7 @@ void irq_gc_eoi(struct irq_data *d) |
2470 |
+ u32 mask = d->mask; |
2471 |
+ |
2472 |
+ irq_gc_lock(gc); |
2473 |
+- irq_reg_writel(mask, gc->reg_base + ct->regs.eoi); |
2474 |
++ irq_reg_writel(gc, mask, ct->regs.eoi); |
2475 |
+ irq_gc_unlock(gc); |
2476 |
+ } |
2477 |
+ |
2478 |
+@@ -245,7 +245,7 @@ irq_gc_init_mask_cache(struct irq_chip_generic *gc, enum irq_gc_flags flags) |
2479 |
+ } |
2480 |
+ ct[i].mask_cache = mskptr; |
2481 |
+ if (flags & IRQ_GC_INIT_MASK_CACHE) |
2482 |
+- *mskptr = irq_reg_readl(gc->reg_base + mskreg); |
2483 |
++ *mskptr = irq_reg_readl(gc, mskreg); |
2484 |
+ } |
2485 |
+ } |
2486 |
+ |
2487 |
+diff --git a/kernel/sched/core.c b/kernel/sched/core.c |
2488 |
+index 2f774edcc4e8..44de06747e41 100644 |
2489 |
+--- a/kernel/sched/core.c |
2490 |
++++ b/kernel/sched/core.c |
2491 |
+@@ -1705,6 +1705,28 @@ try_to_wake_up(struct task_struct *p, unsigned int state, int wake_flags) |
2492 |
+ success = 1; /* we're going to change ->state */ |
2493 |
+ cpu = task_cpu(p); |
2494 |
+ |
2495 |
++ /* |
2496 |
++ * Ensure we load p->on_rq _after_ p->state, otherwise it would |
2497 |
++ * be possible to, falsely, observe p->on_rq == 0 and get stuck |
2498 |
++ * in smp_cond_load_acquire() below. |
2499 |
++ * |
2500 |
++ * sched_ttwu_pending() try_to_wake_up() |
2501 |
++ * [S] p->on_rq = 1; [L] P->state |
2502 |
++ * UNLOCK rq->lock -----. |
2503 |
++ * \ |
2504 |
++ * +--- RMB |
2505 |
++ * schedule() / |
2506 |
++ * LOCK rq->lock -----' |
2507 |
++ * UNLOCK rq->lock |
2508 |
++ * |
2509 |
++ * [task p] |
2510 |
++ * [S] p->state = UNINTERRUPTIBLE [L] p->on_rq |
2511 |
++ * |
2512 |
++ * Pairs with the UNLOCK+LOCK on rq->lock from the |
2513 |
++ * last wakeup of our task and the schedule that got our task |
2514 |
++ * current. |
2515 |
++ */ |
2516 |
++ smp_rmb(); |
2517 |
+ if (p->on_rq && ttwu_remote(p, wake_flags)) |
2518 |
+ goto stat; |
2519 |
+ |
2520 |
+diff --git a/net/ipv6/addrconf.c b/net/ipv6/addrconf.c |
2521 |
+index e34efa766031..953572c17b3d 100644 |
2522 |
+--- a/net/ipv6/addrconf.c |
2523 |
++++ b/net/ipv6/addrconf.c |
2524 |
+@@ -1689,6 +1689,7 @@ void addrconf_dad_failure(struct inet6_ifaddr *ifp) |
2525 |
+ spin_unlock_bh(&ifp->state_lock); |
2526 |
+ |
2527 |
+ addrconf_mod_dad_work(ifp, 0); |
2528 |
++ in6_ifa_put(ifp); |
2529 |
+ } |
2530 |
+ |
2531 |
+ /* Join to solicited addr multicast group. |
2532 |
+@@ -3277,6 +3278,7 @@ static void addrconf_dad_work(struct work_struct *w) |
2533 |
+ addrconf_dad_begin(ifp); |
2534 |
+ goto out; |
2535 |
+ } else if (action == DAD_ABORT) { |
2536 |
++ in6_ifa_hold(ifp); |
2537 |
+ addrconf_dad_stop(ifp, 1); |
2538 |
+ goto out; |
2539 |
+ } |
2540 |
+diff --git a/net/wireless/nl80211.c b/net/wireless/nl80211.c |
2541 |
+index 0286733f2e8c..7f9a3c932d5b 100644 |
2542 |
+--- a/net/wireless/nl80211.c |
2543 |
++++ b/net/wireless/nl80211.c |
2544 |
+@@ -6033,7 +6033,7 @@ static int nl80211_channel_switch(struct sk_buff *skb, struct genl_info *info) |
2545 |
+ |
2546 |
+ params.n_counter_offsets_presp = len / sizeof(u16); |
2547 |
+ if (rdev->wiphy.max_num_csa_counters && |
2548 |
+- (params.n_counter_offsets_beacon > |
2549 |
++ (params.n_counter_offsets_presp > |
2550 |
+ rdev->wiphy.max_num_csa_counters)) |
2551 |
+ return -EINVAL; |
2552 |
+ |
2553 |
+diff --git a/net/wireless/wext-core.c b/net/wireless/wext-core.c |
2554 |
+index c753211cb83f..b50ee5d622e1 100644 |
2555 |
+--- a/net/wireless/wext-core.c |
2556 |
++++ b/net/wireless/wext-core.c |
2557 |
+@@ -955,29 +955,8 @@ static int wireless_process_ioctl(struct net *net, struct ifreq *ifr, |
2558 |
+ return private(dev, iwr, cmd, info, handler); |
2559 |
+ } |
2560 |
+ /* Old driver API : call driver ioctl handler */ |
2561 |
+- if (dev->netdev_ops->ndo_do_ioctl) { |
2562 |
+-#ifdef CONFIG_COMPAT |
2563 |
+- if (info->flags & IW_REQUEST_FLAG_COMPAT) { |
2564 |
+- int ret = 0; |
2565 |
+- struct iwreq iwr_lcl; |
2566 |
+- struct compat_iw_point *iwp_compat = (void *) &iwr->u.data; |
2567 |
+- |
2568 |
+- memcpy(&iwr_lcl, iwr, sizeof(struct iwreq)); |
2569 |
+- iwr_lcl.u.data.pointer = compat_ptr(iwp_compat->pointer); |
2570 |
+- iwr_lcl.u.data.length = iwp_compat->length; |
2571 |
+- iwr_lcl.u.data.flags = iwp_compat->flags; |
2572 |
+- |
2573 |
+- ret = dev->netdev_ops->ndo_do_ioctl(dev, (void *) &iwr_lcl, cmd); |
2574 |
+- |
2575 |
+- iwp_compat->pointer = ptr_to_compat(iwr_lcl.u.data.pointer); |
2576 |
+- iwp_compat->length = iwr_lcl.u.data.length; |
2577 |
+- iwp_compat->flags = iwr_lcl.u.data.flags; |
2578 |
+- |
2579 |
+- return ret; |
2580 |
+- } else |
2581 |
+-#endif |
2582 |
+- return dev->netdev_ops->ndo_do_ioctl(dev, ifr, cmd); |
2583 |
+- } |
2584 |
++ if (dev->netdev_ops->ndo_do_ioctl) |
2585 |
++ return dev->netdev_ops->ndo_do_ioctl(dev, ifr, cmd); |
2586 |
+ return -EOPNOTSUPP; |
2587 |
+ } |
2588 |
+ |
2589 |
+diff --git a/sound/core/timer.c b/sound/core/timer.c |
2590 |
+index 5c769ea59b68..c9da76e05b3f 100644 |
2591 |
+--- a/sound/core/timer.c |
2592 |
++++ b/sound/core/timer.c |
2593 |
+@@ -35,6 +35,9 @@ |
2594 |
+ #include <sound/initval.h> |
2595 |
+ #include <linux/kmod.h> |
2596 |
+ |
2597 |
++/* internal flags */ |
2598 |
++#define SNDRV_TIMER_IFLG_PAUSED 0x00010000 |
2599 |
++ |
2600 |
+ #if IS_ENABLED(CONFIG_SND_HRTIMER) |
2601 |
+ #define DEFAULT_TIMER_LIMIT 4 |
2602 |
+ #elif IS_ENABLED(CONFIG_SND_RTCTIMER) |
2603 |
+@@ -296,8 +299,21 @@ int snd_timer_open(struct snd_timer_instance **ti, |
2604 |
+ get_device(&timer->card->card_dev); |
2605 |
+ timeri->slave_class = tid->dev_sclass; |
2606 |
+ timeri->slave_id = slave_id; |
2607 |
+- if (list_empty(&timer->open_list_head) && timer->hw.open) |
2608 |
+- timer->hw.open(timer); |
2609 |
++ |
2610 |
++ if (list_empty(&timer->open_list_head) && timer->hw.open) { |
2611 |
++ int err = timer->hw.open(timer); |
2612 |
++ if (err) { |
2613 |
++ kfree(timeri->owner); |
2614 |
++ kfree(timeri); |
2615 |
++ |
2616 |
++ if (timer->card) |
2617 |
++ put_device(&timer->card->card_dev); |
2618 |
++ module_put(timer->module); |
2619 |
++ mutex_unlock(®ister_mutex); |
2620 |
++ return err; |
2621 |
++ } |
2622 |
++ } |
2623 |
++ |
2624 |
+ list_add_tail(&timeri->open_list, &timer->open_list_head); |
2625 |
+ snd_timer_check_master(timeri); |
2626 |
+ mutex_unlock(®ister_mutex); |
2627 |
+@@ -305,8 +321,6 @@ int snd_timer_open(struct snd_timer_instance **ti, |
2628 |
+ return 0; |
2629 |
+ } |
2630 |
+ |
2631 |
+-static int _snd_timer_stop(struct snd_timer_instance *timeri, int event); |
2632 |
+- |
2633 |
+ /* |
2634 |
+ * close a timer instance |
2635 |
+ */ |
2636 |
+@@ -395,7 +409,6 @@ unsigned long snd_timer_resolution(struct snd_timer_instance *timeri) |
2637 |
+ static void snd_timer_notify1(struct snd_timer_instance *ti, int event) |
2638 |
+ { |
2639 |
+ struct snd_timer *timer; |
2640 |
+- unsigned long flags; |
2641 |
+ unsigned long resolution = 0; |
2642 |
+ struct snd_timer_instance *ts; |
2643 |
+ struct timespec tstamp; |
2644 |
+@@ -419,34 +432,66 @@ static void snd_timer_notify1(struct snd_timer_instance *ti, int event) |
2645 |
+ return; |
2646 |
+ if (timer->hw.flags & SNDRV_TIMER_HW_SLAVE) |
2647 |
+ return; |
2648 |
+- spin_lock_irqsave(&timer->lock, flags); |
2649 |
+ list_for_each_entry(ts, &ti->slave_active_head, active_list) |
2650 |
+ if (ts->ccallback) |
2651 |
+ ts->ccallback(ts, event + 100, &tstamp, resolution); |
2652 |
+- spin_unlock_irqrestore(&timer->lock, flags); |
2653 |
+ } |
2654 |
+ |
2655 |
+-static int snd_timer_start1(struct snd_timer *timer, struct snd_timer_instance *timeri, |
2656 |
+- unsigned long sticks) |
2657 |
++/* start/continue a master timer */ |
2658 |
++static int snd_timer_start1(struct snd_timer_instance *timeri, |
2659 |
++ bool start, unsigned long ticks) |
2660 |
+ { |
2661 |
++ struct snd_timer *timer; |
2662 |
++ int result; |
2663 |
++ unsigned long flags; |
2664 |
++ |
2665 |
++ timer = timeri->timer; |
2666 |
++ if (!timer) |
2667 |
++ return -EINVAL; |
2668 |
++ |
2669 |
++ spin_lock_irqsave(&timer->lock, flags); |
2670 |
++ if (timer->card && timer->card->shutdown) { |
2671 |
++ result = -ENODEV; |
2672 |
++ goto unlock; |
2673 |
++ } |
2674 |
++ if (timeri->flags & (SNDRV_TIMER_IFLG_RUNNING | |
2675 |
++ SNDRV_TIMER_IFLG_START)) { |
2676 |
++ result = -EBUSY; |
2677 |
++ goto unlock; |
2678 |
++ } |
2679 |
++ |
2680 |
++ if (start) |
2681 |
++ timeri->ticks = timeri->cticks = ticks; |
2682 |
++ else if (!timeri->cticks) |
2683 |
++ timeri->cticks = 1; |
2684 |
++ timeri->pticks = 0; |
2685 |
++ |
2686 |
+ list_move_tail(&timeri->active_list, &timer->active_list_head); |
2687 |
+ if (timer->running) { |
2688 |
+ if (timer->hw.flags & SNDRV_TIMER_HW_SLAVE) |
2689 |
+ goto __start_now; |
2690 |
+ timer->flags |= SNDRV_TIMER_FLG_RESCHED; |
2691 |
+ timeri->flags |= SNDRV_TIMER_IFLG_START; |
2692 |
+- return 1; /* delayed start */ |
2693 |
++ result = 1; /* delayed start */ |
2694 |
+ } else { |
2695 |
+- timer->sticks = sticks; |
2696 |
++ if (start) |
2697 |
++ timer->sticks = ticks; |
2698 |
+ timer->hw.start(timer); |
2699 |
+ __start_now: |
2700 |
+ timer->running++; |
2701 |
+ timeri->flags |= SNDRV_TIMER_IFLG_RUNNING; |
2702 |
+- return 0; |
2703 |
++ result = 0; |
2704 |
+ } |
2705 |
++ snd_timer_notify1(timeri, start ? SNDRV_TIMER_EVENT_START : |
2706 |
++ SNDRV_TIMER_EVENT_CONTINUE); |
2707 |
++ unlock: |
2708 |
++ spin_unlock_irqrestore(&timer->lock, flags); |
2709 |
++ return result; |
2710 |
+ } |
2711 |
+ |
2712 |
+-static int snd_timer_start_slave(struct snd_timer_instance *timeri) |
2713 |
++/* start/continue a slave timer */ |
2714 |
++static int snd_timer_start_slave(struct snd_timer_instance *timeri, |
2715 |
++ bool start) |
2716 |
+ { |
2717 |
+ unsigned long flags; |
2718 |
+ |
2719 |
+@@ -460,88 +505,37 @@ static int snd_timer_start_slave(struct snd_timer_instance *timeri) |
2720 |
+ spin_lock(&timeri->timer->lock); |
2721 |
+ list_add_tail(&timeri->active_list, |
2722 |
+ &timeri->master->slave_active_head); |
2723 |
++ snd_timer_notify1(timeri, start ? SNDRV_TIMER_EVENT_START : |
2724 |
++ SNDRV_TIMER_EVENT_CONTINUE); |
2725 |
+ spin_unlock(&timeri->timer->lock); |
2726 |
+ } |
2727 |
+ spin_unlock_irqrestore(&slave_active_lock, flags); |
2728 |
+ return 1; /* delayed start */ |
2729 |
+ } |
2730 |
+ |
2731 |
+-/* |
2732 |
+- * start the timer instance |
2733 |
+- */ |
2734 |
+-int snd_timer_start(struct snd_timer_instance *timeri, unsigned int ticks) |
2735 |
+-{ |
2736 |
+- struct snd_timer *timer; |
2737 |
+- int result = -EINVAL; |
2738 |
+- unsigned long flags; |
2739 |
+- |
2740 |
+- if (timeri == NULL || ticks < 1) |
2741 |
+- return -EINVAL; |
2742 |
+- if (timeri->flags & SNDRV_TIMER_IFLG_SLAVE) { |
2743 |
+- result = snd_timer_start_slave(timeri); |
2744 |
+- if (result >= 0) |
2745 |
+- snd_timer_notify1(timeri, SNDRV_TIMER_EVENT_START); |
2746 |
+- return result; |
2747 |
+- } |
2748 |
+- timer = timeri->timer; |
2749 |
+- if (timer == NULL) |
2750 |
+- return -EINVAL; |
2751 |
+- if (timer->card && timer->card->shutdown) |
2752 |
+- return -ENODEV; |
2753 |
+- spin_lock_irqsave(&timer->lock, flags); |
2754 |
+- if (timeri->flags & (SNDRV_TIMER_IFLG_RUNNING | |
2755 |
+- SNDRV_TIMER_IFLG_START)) { |
2756 |
+- result = -EBUSY; |
2757 |
+- goto unlock; |
2758 |
+- } |
2759 |
+- timeri->ticks = timeri->cticks = ticks; |
2760 |
+- timeri->pticks = 0; |
2761 |
+- result = snd_timer_start1(timer, timeri, ticks); |
2762 |
+- unlock: |
2763 |
+- spin_unlock_irqrestore(&timer->lock, flags); |
2764 |
+- if (result >= 0) |
2765 |
+- snd_timer_notify1(timeri, SNDRV_TIMER_EVENT_START); |
2766 |
+- return result; |
2767 |
+-} |
2768 |
+- |
2769 |
+-static int _snd_timer_stop(struct snd_timer_instance *timeri, int event) |
2770 |
++/* stop/pause a master timer */ |
2771 |
++static int snd_timer_stop1(struct snd_timer_instance *timeri, bool stop) |
2772 |
+ { |
2773 |
+ struct snd_timer *timer; |
2774 |
++ int result = 0; |
2775 |
+ unsigned long flags; |
2776 |
+ |
2777 |
+- if (snd_BUG_ON(!timeri)) |
2778 |
+- return -ENXIO; |
2779 |
+- |
2780 |
+- if (timeri->flags & SNDRV_TIMER_IFLG_SLAVE) { |
2781 |
+- spin_lock_irqsave(&slave_active_lock, flags); |
2782 |
+- if (!(timeri->flags & SNDRV_TIMER_IFLG_RUNNING)) { |
2783 |
+- spin_unlock_irqrestore(&slave_active_lock, flags); |
2784 |
+- return -EBUSY; |
2785 |
+- } |
2786 |
+- if (timeri->timer) |
2787 |
+- spin_lock(&timeri->timer->lock); |
2788 |
+- timeri->flags &= ~SNDRV_TIMER_IFLG_RUNNING; |
2789 |
+- list_del_init(&timeri->ack_list); |
2790 |
+- list_del_init(&timeri->active_list); |
2791 |
+- if (timeri->timer) |
2792 |
+- spin_unlock(&timeri->timer->lock); |
2793 |
+- spin_unlock_irqrestore(&slave_active_lock, flags); |
2794 |
+- goto __end; |
2795 |
+- } |
2796 |
+ timer = timeri->timer; |
2797 |
+ if (!timer) |
2798 |
+ return -EINVAL; |
2799 |
+ spin_lock_irqsave(&timer->lock, flags); |
2800 |
+ if (!(timeri->flags & (SNDRV_TIMER_IFLG_RUNNING | |
2801 |
+ SNDRV_TIMER_IFLG_START))) { |
2802 |
+- spin_unlock_irqrestore(&timer->lock, flags); |
2803 |
+- return -EBUSY; |
2804 |
++ result = -EBUSY; |
2805 |
++ goto unlock; |
2806 |
+ } |
2807 |
+ list_del_init(&timeri->ack_list); |
2808 |
+ list_del_init(&timeri->active_list); |
2809 |
+- if (timer->card && timer->card->shutdown) { |
2810 |
+- spin_unlock_irqrestore(&timer->lock, flags); |
2811 |
+- return 0; |
2812 |
++ if (timer->card && timer->card->shutdown) |
2813 |
++ goto unlock; |
2814 |
++ if (stop) { |
2815 |
++ timeri->cticks = timeri->ticks; |
2816 |
++ timeri->pticks = 0; |
2817 |
+ } |
2818 |
+ if ((timeri->flags & SNDRV_TIMER_IFLG_RUNNING) && |
2819 |
+ !(--timer->running)) { |
2820 |
+@@ -556,35 +550,64 @@ static int _snd_timer_stop(struct snd_timer_instance *timeri, int event) |
2821 |
+ } |
2822 |
+ } |
2823 |
+ timeri->flags &= ~(SNDRV_TIMER_IFLG_RUNNING | SNDRV_TIMER_IFLG_START); |
2824 |
++ if (stop) |
2825 |
++ timeri->flags &= ~SNDRV_TIMER_IFLG_PAUSED; |
2826 |
++ else |
2827 |
++ timeri->flags |= SNDRV_TIMER_IFLG_PAUSED; |
2828 |
++ snd_timer_notify1(timeri, stop ? SNDRV_TIMER_EVENT_STOP : |
2829 |
++ SNDRV_TIMER_EVENT_CONTINUE); |
2830 |
++ unlock: |
2831 |
+ spin_unlock_irqrestore(&timer->lock, flags); |
2832 |
+- __end: |
2833 |
+- if (event != SNDRV_TIMER_EVENT_RESOLUTION) |
2834 |
+- snd_timer_notify1(timeri, event); |
2835 |
++ return result; |
2836 |
++} |
2837 |
++ |
2838 |
++/* stop/pause a slave timer */ |
2839 |
++static int snd_timer_stop_slave(struct snd_timer_instance *timeri, bool stop) |
2840 |
++{ |
2841 |
++ unsigned long flags; |
2842 |
++ |
2843 |
++ spin_lock_irqsave(&slave_active_lock, flags); |
2844 |
++ if (!(timeri->flags & SNDRV_TIMER_IFLG_RUNNING)) { |
2845 |
++ spin_unlock_irqrestore(&slave_active_lock, flags); |
2846 |
++ return -EBUSY; |
2847 |
++ } |
2848 |
++ timeri->flags &= ~SNDRV_TIMER_IFLG_RUNNING; |
2849 |
++ if (timeri->timer) { |
2850 |
++ spin_lock(&timeri->timer->lock); |
2851 |
++ list_del_init(&timeri->ack_list); |
2852 |
++ list_del_init(&timeri->active_list); |
2853 |
++ snd_timer_notify1(timeri, stop ? SNDRV_TIMER_EVENT_STOP : |
2854 |
++ SNDRV_TIMER_EVENT_CONTINUE); |
2855 |
++ spin_unlock(&timeri->timer->lock); |
2856 |
++ } |
2857 |
++ spin_unlock_irqrestore(&slave_active_lock, flags); |
2858 |
+ return 0; |
2859 |
+ } |
2860 |
+ |
2861 |
+ /* |
2862 |
++ * start the timer instance |
2863 |
++ */ |
2864 |
++int snd_timer_start(struct snd_timer_instance *timeri, unsigned int ticks) |
2865 |
++{ |
2866 |
++ if (timeri == NULL || ticks < 1) |
2867 |
++ return -EINVAL; |
2868 |
++ if (timeri->flags & SNDRV_TIMER_IFLG_SLAVE) |
2869 |
++ return snd_timer_start_slave(timeri, true); |
2870 |
++ else |
2871 |
++ return snd_timer_start1(timeri, true, ticks); |
2872 |
++} |
2873 |
++ |
2874 |
++/* |
2875 |
+ * stop the timer instance. |
2876 |
+ * |
2877 |
+ * do not call this from the timer callback! |
2878 |
+ */ |
2879 |
+ int snd_timer_stop(struct snd_timer_instance *timeri) |
2880 |
+ { |
2881 |
+- struct snd_timer *timer; |
2882 |
+- unsigned long flags; |
2883 |
+- int err; |
2884 |
+- |
2885 |
+- err = _snd_timer_stop(timeri, SNDRV_TIMER_EVENT_STOP); |
2886 |
+- if (err < 0) |
2887 |
+- return err; |
2888 |
+- timer = timeri->timer; |
2889 |
+- if (!timer) |
2890 |
+- return -EINVAL; |
2891 |
+- spin_lock_irqsave(&timer->lock, flags); |
2892 |
+- timeri->cticks = timeri->ticks; |
2893 |
+- timeri->pticks = 0; |
2894 |
+- spin_unlock_irqrestore(&timer->lock, flags); |
2895 |
+- return 0; |
2896 |
++ if (timeri->flags & SNDRV_TIMER_IFLG_SLAVE) |
2897 |
++ return snd_timer_stop_slave(timeri, true); |
2898 |
++ else |
2899 |
++ return snd_timer_stop1(timeri, true); |
2900 |
+ } |
2901 |
+ |
2902 |
+ /* |
2903 |
+@@ -592,32 +615,14 @@ int snd_timer_stop(struct snd_timer_instance *timeri) |
2904 |
+ */ |
2905 |
+ int snd_timer_continue(struct snd_timer_instance *timeri) |
2906 |
+ { |
2907 |
+- struct snd_timer *timer; |
2908 |
+- int result = -EINVAL; |
2909 |
+- unsigned long flags; |
2910 |
++ /* timer can continue only after pause */ |
2911 |
++ if (!(timeri->flags & SNDRV_TIMER_IFLG_PAUSED)) |
2912 |
++ return -EINVAL; |
2913 |
+ |
2914 |
+- if (timeri == NULL) |
2915 |
+- return result; |
2916 |
+ if (timeri->flags & SNDRV_TIMER_IFLG_SLAVE) |
2917 |
+- return snd_timer_start_slave(timeri); |
2918 |
+- timer = timeri->timer; |
2919 |
+- if (! timer) |
2920 |
+- return -EINVAL; |
2921 |
+- if (timer->card && timer->card->shutdown) |
2922 |
+- return -ENODEV; |
2923 |
+- spin_lock_irqsave(&timer->lock, flags); |
2924 |
+- if (timeri->flags & SNDRV_TIMER_IFLG_RUNNING) { |
2925 |
+- result = -EBUSY; |
2926 |
+- goto unlock; |
2927 |
+- } |
2928 |
+- if (!timeri->cticks) |
2929 |
+- timeri->cticks = 1; |
2930 |
+- timeri->pticks = 0; |
2931 |
+- result = snd_timer_start1(timer, timeri, timer->sticks); |
2932 |
+- unlock: |
2933 |
+- spin_unlock_irqrestore(&timer->lock, flags); |
2934 |
+- snd_timer_notify1(timeri, SNDRV_TIMER_EVENT_CONTINUE); |
2935 |
+- return result; |
2936 |
++ return snd_timer_start_slave(timeri, false); |
2937 |
++ else |
2938 |
++ return snd_timer_start1(timeri, false, 0); |
2939 |
+ } |
2940 |
+ |
2941 |
+ /* |
2942 |
+@@ -625,7 +630,10 @@ int snd_timer_continue(struct snd_timer_instance *timeri) |
2943 |
+ */ |
2944 |
+ int snd_timer_pause(struct snd_timer_instance * timeri) |
2945 |
+ { |
2946 |
+- return _snd_timer_stop(timeri, SNDRV_TIMER_EVENT_PAUSE); |
2947 |
++ if (timeri->flags & SNDRV_TIMER_IFLG_SLAVE) |
2948 |
++ return snd_timer_stop_slave(timeri, false); |
2949 |
++ else |
2950 |
++ return snd_timer_stop1(timeri, false); |
2951 |
+ } |
2952 |
+ |
2953 |
+ /* |
2954 |
+@@ -839,6 +847,7 @@ int snd_timer_new(struct snd_card *card, char *id, struct snd_timer_id *tid, |
2955 |
+ timer->tmr_subdevice = tid->subdevice; |
2956 |
+ if (id) |
2957 |
+ strlcpy(timer->id, id, sizeof(timer->id)); |
2958 |
++ timer->sticks = 1; |
2959 |
+ INIT_LIST_HEAD(&timer->device_list); |
2960 |
+ INIT_LIST_HEAD(&timer->open_list_head); |
2961 |
+ INIT_LIST_HEAD(&timer->active_list_head); |
2962 |
+@@ -1827,6 +1836,9 @@ static int snd_timer_user_continue(struct file *file) |
2963 |
+ tu = file->private_data; |
2964 |
+ if (!tu->timeri) |
2965 |
+ return -EBADFD; |
2966 |
++ /* start timer instead of continue if it's not used before */ |
2967 |
++ if (!(tu->timeri->flags & SNDRV_TIMER_IFLG_PAUSED)) |
2968 |
++ return snd_timer_user_start(file); |
2969 |
+ tu->timeri->lost = 0; |
2970 |
+ return (err = snd_timer_continue(tu->timeri)) < 0 ? err : 0; |
2971 |
+ } |
2972 |
+diff --git a/sound/firewire/fireworks/fireworks.h b/sound/firewire/fireworks/fireworks.h |
2973 |
+index 084d414b228c..b431c34b2d74 100644 |
2974 |
+--- a/sound/firewire/fireworks/fireworks.h |
2975 |
++++ b/sound/firewire/fireworks/fireworks.h |
2976 |
+@@ -106,7 +106,6 @@ struct snd_efw { |
2977 |
+ u8 *resp_buf; |
2978 |
+ u8 *pull_ptr; |
2979 |
+ u8 *push_ptr; |
2980 |
+- unsigned int resp_queues; |
2981 |
+ }; |
2982 |
+ |
2983 |
+ int snd_efw_transaction_cmd(struct fw_unit *unit, |
2984 |
+diff --git a/sound/firewire/fireworks/fireworks_hwdep.c b/sound/firewire/fireworks/fireworks_hwdep.c |
2985 |
+index 33df8655fe81..2e1d9a23920c 100644 |
2986 |
+--- a/sound/firewire/fireworks/fireworks_hwdep.c |
2987 |
++++ b/sound/firewire/fireworks/fireworks_hwdep.c |
2988 |
+@@ -25,6 +25,7 @@ hwdep_read_resp_buf(struct snd_efw *efw, char __user *buf, long remained, |
2989 |
+ { |
2990 |
+ unsigned int length, till_end, type; |
2991 |
+ struct snd_efw_transaction *t; |
2992 |
++ u8 *pull_ptr; |
2993 |
+ long count = 0; |
2994 |
+ |
2995 |
+ if (remained < sizeof(type) + sizeof(struct snd_efw_transaction)) |
2996 |
+@@ -38,8 +39,17 @@ hwdep_read_resp_buf(struct snd_efw *efw, char __user *buf, long remained, |
2997 |
+ buf += sizeof(type); |
2998 |
+ |
2999 |
+ /* write into buffer as many responses as possible */ |
3000 |
+- while (efw->resp_queues > 0) { |
3001 |
+- t = (struct snd_efw_transaction *)(efw->pull_ptr); |
3002 |
++ spin_lock_irq(&efw->lock); |
3003 |
++ |
3004 |
++ /* |
3005 |
++ * When another task reaches here during this task's access to user |
3006 |
++ * space, it picks up current position in buffer and can read the same |
3007 |
++ * series of responses. |
3008 |
++ */ |
3009 |
++ pull_ptr = efw->pull_ptr; |
3010 |
++ |
3011 |
++ while (efw->push_ptr != pull_ptr) { |
3012 |
++ t = (struct snd_efw_transaction *)(pull_ptr); |
3013 |
+ length = be32_to_cpu(t->length) * sizeof(__be32); |
3014 |
+ |
3015 |
+ /* confirm enough space for this response */ |
3016 |
+@@ -49,26 +59,39 @@ hwdep_read_resp_buf(struct snd_efw *efw, char __user *buf, long remained, |
3017 |
+ /* copy from ring buffer to user buffer */ |
3018 |
+ while (length > 0) { |
3019 |
+ till_end = snd_efw_resp_buf_size - |
3020 |
+- (unsigned int)(efw->pull_ptr - efw->resp_buf); |
3021 |
++ (unsigned int)(pull_ptr - efw->resp_buf); |
3022 |
+ till_end = min_t(unsigned int, length, till_end); |
3023 |
+ |
3024 |
+- if (copy_to_user(buf, efw->pull_ptr, till_end)) |
3025 |
++ spin_unlock_irq(&efw->lock); |
3026 |
++ |
3027 |
++ if (copy_to_user(buf, pull_ptr, till_end)) |
3028 |
+ return -EFAULT; |
3029 |
+ |
3030 |
+- efw->pull_ptr += till_end; |
3031 |
+- if (efw->pull_ptr >= efw->resp_buf + |
3032 |
+- snd_efw_resp_buf_size) |
3033 |
+- efw->pull_ptr -= snd_efw_resp_buf_size; |
3034 |
++ spin_lock_irq(&efw->lock); |
3035 |
++ |
3036 |
++ pull_ptr += till_end; |
3037 |
++ if (pull_ptr >= efw->resp_buf + snd_efw_resp_buf_size) |
3038 |
++ pull_ptr -= snd_efw_resp_buf_size; |
3039 |
+ |
3040 |
+ length -= till_end; |
3041 |
+ buf += till_end; |
3042 |
+ count += till_end; |
3043 |
+ remained -= till_end; |
3044 |
+ } |
3045 |
+- |
3046 |
+- efw->resp_queues--; |
3047 |
+ } |
3048 |
+ |
3049 |
++ /* |
3050 |
++ * All of tasks can read from the buffer nearly simultaneously, but the |
3051 |
++ * last position for each task is different depending on the length of |
3052 |
++ * given buffer. Here, for simplicity, a position of buffer is set by |
3053 |
++ * the latest task. It's better for a listening application to allow one |
3054 |
++ * thread to read from the buffer. Unless, each task can read different |
3055 |
++ * sequence of responses depending on variation of buffer length. |
3056 |
++ */ |
3057 |
++ efw->pull_ptr = pull_ptr; |
3058 |
++ |
3059 |
++ spin_unlock_irq(&efw->lock); |
3060 |
++ |
3061 |
+ return count; |
3062 |
+ } |
3063 |
+ |
3064 |
+@@ -76,14 +99,17 @@ static long |
3065 |
+ hwdep_read_locked(struct snd_efw *efw, char __user *buf, long count, |
3066 |
+ loff_t *offset) |
3067 |
+ { |
3068 |
+- union snd_firewire_event event; |
3069 |
++ union snd_firewire_event event = { |
3070 |
++ .lock_status.type = SNDRV_FIREWIRE_EVENT_LOCK_STATUS, |
3071 |
++ }; |
3072 |
+ |
3073 |
+- memset(&event, 0, sizeof(event)); |
3074 |
++ spin_lock_irq(&efw->lock); |
3075 |
+ |
3076 |
+- event.lock_status.type = SNDRV_FIREWIRE_EVENT_LOCK_STATUS; |
3077 |
+ event.lock_status.status = (efw->dev_lock_count > 0); |
3078 |
+ efw->dev_lock_changed = false; |
3079 |
+ |
3080 |
++ spin_unlock_irq(&efw->lock); |
3081 |
++ |
3082 |
+ count = min_t(long, count, sizeof(event.lock_status)); |
3083 |
+ |
3084 |
+ if (copy_to_user(buf, &event, count)) |
3085 |
+@@ -98,10 +124,15 @@ hwdep_read(struct snd_hwdep *hwdep, char __user *buf, long count, |
3086 |
+ { |
3087 |
+ struct snd_efw *efw = hwdep->private_data; |
3088 |
+ DEFINE_WAIT(wait); |
3089 |
++ bool dev_lock_changed; |
3090 |
++ bool queued; |
3091 |
+ |
3092 |
+ spin_lock_irq(&efw->lock); |
3093 |
+ |
3094 |
+- while ((!efw->dev_lock_changed) && (efw->resp_queues == 0)) { |
3095 |
++ dev_lock_changed = efw->dev_lock_changed; |
3096 |
++ queued = efw->push_ptr != efw->pull_ptr; |
3097 |
++ |
3098 |
++ while (!dev_lock_changed && !queued) { |
3099 |
+ prepare_to_wait(&efw->hwdep_wait, &wait, TASK_INTERRUPTIBLE); |
3100 |
+ spin_unlock_irq(&efw->lock); |
3101 |
+ schedule(); |
3102 |
+@@ -109,15 +140,17 @@ hwdep_read(struct snd_hwdep *hwdep, char __user *buf, long count, |
3103 |
+ if (signal_pending(current)) |
3104 |
+ return -ERESTARTSYS; |
3105 |
+ spin_lock_irq(&efw->lock); |
3106 |
++ dev_lock_changed = efw->dev_lock_changed; |
3107 |
++ queued = efw->push_ptr != efw->pull_ptr; |
3108 |
+ } |
3109 |
+ |
3110 |
+- if (efw->dev_lock_changed) |
3111 |
++ spin_unlock_irq(&efw->lock); |
3112 |
++ |
3113 |
++ if (dev_lock_changed) |
3114 |
+ count = hwdep_read_locked(efw, buf, count, offset); |
3115 |
+- else if (efw->resp_queues > 0) |
3116 |
++ else if (queued) |
3117 |
+ count = hwdep_read_resp_buf(efw, buf, count, offset); |
3118 |
+ |
3119 |
+- spin_unlock_irq(&efw->lock); |
3120 |
+- |
3121 |
+ return count; |
3122 |
+ } |
3123 |
+ |
3124 |
+@@ -160,7 +193,7 @@ hwdep_poll(struct snd_hwdep *hwdep, struct file *file, poll_table *wait) |
3125 |
+ poll_wait(file, &efw->hwdep_wait, wait); |
3126 |
+ |
3127 |
+ spin_lock_irq(&efw->lock); |
3128 |
+- if (efw->dev_lock_changed || (efw->resp_queues > 0)) |
3129 |
++ if (efw->dev_lock_changed || efw->pull_ptr != efw->push_ptr) |
3130 |
+ events = POLLIN | POLLRDNORM; |
3131 |
+ else |
3132 |
+ events = 0; |
3133 |
+diff --git a/sound/firewire/fireworks/fireworks_proc.c b/sound/firewire/fireworks/fireworks_proc.c |
3134 |
+index 0639dcb13f7d..beb0a0ffee57 100644 |
3135 |
+--- a/sound/firewire/fireworks/fireworks_proc.c |
3136 |
++++ b/sound/firewire/fireworks/fireworks_proc.c |
3137 |
+@@ -188,8 +188,8 @@ proc_read_queues_state(struct snd_info_entry *entry, |
3138 |
+ else |
3139 |
+ consumed = (unsigned int)(efw->push_ptr - efw->pull_ptr); |
3140 |
+ |
3141 |
+- snd_iprintf(buffer, "%d %d/%d\n", |
3142 |
+- efw->resp_queues, consumed, snd_efw_resp_buf_size); |
3143 |
++ snd_iprintf(buffer, "%d/%d\n", |
3144 |
++ consumed, snd_efw_resp_buf_size); |
3145 |
+ } |
3146 |
+ |
3147 |
+ static void |
3148 |
+diff --git a/sound/firewire/fireworks/fireworks_transaction.c b/sound/firewire/fireworks/fireworks_transaction.c |
3149 |
+index 2a85e4209f0b..8e9abbb6b68c 100644 |
3150 |
+--- a/sound/firewire/fireworks/fireworks_transaction.c |
3151 |
++++ b/sound/firewire/fireworks/fireworks_transaction.c |
3152 |
+@@ -121,11 +121,11 @@ copy_resp_to_buf(struct snd_efw *efw, void *data, size_t length, int *rcode) |
3153 |
+ size_t capacity, till_end; |
3154 |
+ struct snd_efw_transaction *t; |
3155 |
+ |
3156 |
+- spin_lock_irq(&efw->lock); |
3157 |
+- |
3158 |
+ t = (struct snd_efw_transaction *)data; |
3159 |
+ length = min_t(size_t, be32_to_cpu(t->length) * sizeof(u32), length); |
3160 |
+ |
3161 |
++ spin_lock_irq(&efw->lock); |
3162 |
++ |
3163 |
+ if (efw->push_ptr < efw->pull_ptr) |
3164 |
+ capacity = (unsigned int)(efw->pull_ptr - efw->push_ptr); |
3165 |
+ else |
3166 |
+@@ -155,7 +155,6 @@ copy_resp_to_buf(struct snd_efw *efw, void *data, size_t length, int *rcode) |
3167 |
+ } |
3168 |
+ |
3169 |
+ /* for hwdep */ |
3170 |
+- efw->resp_queues++; |
3171 |
+ wake_up(&efw->hwdep_wait); |
3172 |
+ |
3173 |
+ *rcode = RCODE_COMPLETE; |
3174 |
+diff --git a/sound/usb/quirks.c b/sound/usb/quirks.c |
3175 |
+index 7a44d07c797d..5ace1fb54595 100644 |
3176 |
+--- a/sound/usb/quirks.c |
3177 |
++++ b/sound/usb/quirks.c |
3178 |
+@@ -1127,6 +1127,7 @@ bool snd_usb_get_sample_rate_quirk(struct snd_usb_audio *chip) |
3179 |
+ case USB_ID(0x04D8, 0xFEEA): /* Benchmark DAC1 Pre */ |
3180 |
+ case USB_ID(0x0556, 0x0014): /* Phoenix Audio TMX320VC */ |
3181 |
+ case USB_ID(0x074D, 0x3553): /* Outlaw RR2150 (Micronas UAC3553B) */ |
3182 |
++ case USB_ID(0x1901, 0x0191): /* GE B850V3 CP2114 audio interface */ |
3183 |
+ case USB_ID(0x1de7, 0x0013): /* Phoenix Audio MT202exe */ |
3184 |
+ case USB_ID(0x1de7, 0x0014): /* Phoenix Audio TMX320 */ |
3185 |
+ case USB_ID(0x1de7, 0x0114): /* Phoenix Audio MT202pcs */ |