[gentoo-commits] proj/linux-patches:4.14 commit in: /

[Mike Pagano]

commit:     f20406284f321ba74df51fe0b25dd503e072eb82
Author:     Mike Pagano <mpagano <AT> gentoo <DOT> org>
AuthorDate: Sun Oct 17 13:13:34 2021 +0000
Commit:     Mike Pagano <mpagano <AT> gentoo <DOT> org>
CommitDate: Sun Oct 17 13:13:34 2021 +0000
URL:        https://gitweb.gentoo.org/proj/linux-patches.git/commit/?id=f2040628

Linux patch 4.14.251

Signed-off-by: Mike Pagano <mpagano <AT> gentoo.org>

 0000_README               |    4 +
 1250_linux-4.14.251.patch | 1057 +++++++++++++++++++++++++++++++++++++++++++++
 2 files changed, 1061 insertions(+)

diff --git a/0000_README b/0000_README
index 2892a8e..82dbb98 100644
--- a/0000_README
+++ b/0000_README
@@ -1047,6 +1047,10 @@ Patch:  1249_linux-4.14.250.patch
 From:   https://www.kernel.org
 Desc:   Linux 4.14.250
 
+Patch:  1250_linux-4.14.251.patch
+From:   https://www.kernel.org
+Desc:   Linux 4.14.251
+
 Patch:  1500_XATTR_USER_PREFIX.patch
 From:   https://bugs.gentoo.org/show_bug.cgi?id=470644
 Desc:   Support for namespace user.pax.* on tmpfs.

diff --git a/1250_linux-4.14.251.patch b/1250_linux-4.14.251.patch
new file mode 100644
index 0000000..244cb17
--- /dev/null
+++ b/1250_linux-4.14.251.patch
@@ -0,0 +1,1057 @@
+diff --git a/Makefile b/Makefile
+index 7fed41bc6a4f6..184089eb1bdb5 100644
+--- a/Makefile
++++ b/Makefile
+@@ -1,7 +1,7 @@
+ # SPDX-License-Identifier: GPL-2.0
+ VERSION = 4
+ PATCHLEVEL = 14
+-SUBLEVEL = 250
++SUBLEVEL = 251
+ EXTRAVERSION =
+ NAME = Petit Gorille
+ 
+diff --git a/arch/arm/boot/dts/omap3430-sdp.dts b/arch/arm/boot/dts/omap3430-sdp.dts
+index 908951eb5943e..e4ee935f7b382 100644
+--- a/arch/arm/boot/dts/omap3430-sdp.dts
++++ b/arch/arm/boot/dts/omap3430-sdp.dts
+@@ -104,7 +104,7 @@
+ 
+ 	nand@1,0 {
+ 		compatible = "ti,omap2-nand";
+-		reg = <0 0 4>; /* CS0, offset 0, IO size 4 */
++		reg = <1 0 4>; /* CS1, offset 0, IO size 4 */
+ 		interrupt-parent = <&gpmc>;
+ 		interrupts = <0 IRQ_TYPE_NONE>, /* fifoevent */
+ 			     <1 IRQ_TYPE_NONE>;	/* termcount */
+diff --git a/arch/arm/boot/dts/qcom-apq8064.dtsi b/arch/arm/boot/dts/qcom-apq8064.dtsi
+index eef243998392d..459358b54ab42 100644
+--- a/arch/arm/boot/dts/qcom-apq8064.dtsi
++++ b/arch/arm/boot/dts/qcom-apq8064.dtsi
+@@ -1114,7 +1114,7 @@
+ 		};
+ 
+ 		gpu: adreno-3xx@4300000 {
+-			compatible = "qcom,adreno-3xx";
++			compatible = "qcom,adreno-320.2", "qcom,adreno";
+ 			reg = <0x04300000 0x20000>;
+ 			reg-names = "kgsl_3d0_reg_memory";
+ 			interrupts = <GIC_SPI 80 0>;
+@@ -1129,7 +1129,6 @@
+ 			    <&mmcc GFX3D_AHB_CLK>,
+ 			    <&mmcc GFX3D_AXI_CLK>,
+ 			    <&mmcc MMSS_IMEM_AHB_CLK>;
+-			qcom,chipid = <0x03020002>;
+ 
+ 			iommus = <&gfx3d 0
+ 				  &gfx3d 1
+diff --git a/arch/arm/mach-imx/pm-imx6.c b/arch/arm/mach-imx/pm-imx6.c
+index c7dcb0b207301..5182b04ac878b 100644
+--- a/arch/arm/mach-imx/pm-imx6.c
++++ b/arch/arm/mach-imx/pm-imx6.c
+@@ -15,6 +15,7 @@
+ #include <linux/io.h>
+ #include <linux/irq.h>
+ #include <linux/genalloc.h>
++#include <linux/irqchip/arm-gic.h>
+ #include <linux/mfd/syscon.h>
+ #include <linux/mfd/syscon/imx6q-iomuxc-gpr.h>
+ #include <linux/of.h>
+@@ -608,6 +609,7 @@ static void __init imx6_pm_common_init(const struct imx6_pm_socdata
+ 
+ static void imx6_pm_stby_poweroff(void)
+ {
++	gic_cpu_if_down(0);
+ 	imx6_set_lpm(STOP_POWER_OFF);
+ 	imx6q_suspend_finish(0);
+ 
+diff --git a/arch/m68k/kernel/signal.c b/arch/m68k/kernel/signal.c
+index e79421f5b9cd9..20a3ff41d0d5a 100644
+--- a/arch/m68k/kernel/signal.c
++++ b/arch/m68k/kernel/signal.c
+@@ -448,7 +448,7 @@ static inline void save_fpu_state(struct sigcontext *sc, struct pt_regs *regs)
+ 
+ 	if (CPU_IS_060 ? sc->sc_fpstate[2] : sc->sc_fpstate[0]) {
+ 		fpu_version = sc->sc_fpstate[0];
+-		if (CPU_IS_020_OR_030 &&
++		if (CPU_IS_020_OR_030 && !regs->stkadj &&
+ 		    regs->vector >= (VEC_FPBRUC * 4) &&
+ 		    regs->vector <= (VEC_FPNAN * 4)) {
+ 			/* Clear pending exception in 68882 idle frame */
+@@ -511,7 +511,7 @@ static inline int rt_save_fpu_state(struct ucontext __user *uc, struct pt_regs *
+ 		if (!(CPU_IS_060 || CPU_IS_COLDFIRE))
+ 			context_size = fpstate[1];
+ 		fpu_version = fpstate[0];
+-		if (CPU_IS_020_OR_030 &&
++		if (CPU_IS_020_OR_030 && !regs->stkadj &&
+ 		    regs->vector >= (VEC_FPBRUC * 4) &&
+ 		    regs->vector <= (VEC_FPNAN * 4)) {
+ 			/* Clear pending exception in 68882 idle frame */
+@@ -765,18 +765,24 @@ badframe:
+ 	return 0;
+ }
+ 
++static inline struct pt_regs *rte_regs(struct pt_regs *regs)
++{
++	return (void *)regs + regs->stkadj;
++}
++
+ static void setup_sigcontext(struct sigcontext *sc, struct pt_regs *regs,
+ 			     unsigned long mask)
+ {
++	struct pt_regs *tregs = rte_regs(regs);
+ 	sc->sc_mask = mask;
+ 	sc->sc_usp = rdusp();
+ 	sc->sc_d0 = regs->d0;
+ 	sc->sc_d1 = regs->d1;
+ 	sc->sc_a0 = regs->a0;
+ 	sc->sc_a1 = regs->a1;
+-	sc->sc_sr = regs->sr;
+-	sc->sc_pc = regs->pc;
+-	sc->sc_formatvec = regs->format << 12 | regs->vector;
++	sc->sc_sr = tregs->sr;
++	sc->sc_pc = tregs->pc;
++	sc->sc_formatvec = tregs->format << 12 | tregs->vector;
+ 	save_a5_state(sc, regs);
+ 	save_fpu_state(sc, regs);
+ }
+@@ -784,6 +790,7 @@ static void setup_sigcontext(struct sigcontext *sc, struct pt_regs *regs,
+ static inline int rt_setup_ucontext(struct ucontext __user *uc, struct pt_regs *regs)
+ {
+ 	struct switch_stack *sw = (struct switch_stack *)regs - 1;
++	struct pt_regs *tregs = rte_regs(regs);
+ 	greg_t __user *gregs = uc->uc_mcontext.gregs;
+ 	int err = 0;
+ 
+@@ -804,9 +811,9 @@ static inline int rt_setup_ucontext(struct ucontext __user *uc, struct pt_regs *
+ 	err |= __put_user(sw->a5, &gregs[13]);
+ 	err |= __put_user(sw->a6, &gregs[14]);
+ 	err |= __put_user(rdusp(), &gregs[15]);
+-	err |= __put_user(regs->pc, &gregs[16]);
+-	err |= __put_user(regs->sr, &gregs[17]);
+-	err |= __put_user((regs->format << 12) | regs->vector, &uc->uc_formatvec);
++	err |= __put_user(tregs->pc, &gregs[16]);
++	err |= __put_user(tregs->sr, &gregs[17]);
++	err |= __put_user((tregs->format << 12) | tregs->vector, &uc->uc_formatvec);
+ 	err |= rt_save_fpu_state(uc, regs);
+ 	return err;
+ }
+@@ -823,13 +830,14 @@ static int setup_frame(struct ksignal *ksig, sigset_t *set,
+ 			struct pt_regs *regs)
+ {
+ 	struct sigframe __user *frame;
+-	int fsize = frame_extra_sizes(regs->format);
++	struct pt_regs *tregs = rte_regs(regs);
++	int fsize = frame_extra_sizes(tregs->format);
+ 	struct sigcontext context;
+ 	int err = 0, sig = ksig->sig;
+ 
+ 	if (fsize < 0) {
+ 		pr_debug("setup_frame: Unknown frame format %#x\n",
+-			 regs->format);
++			 tregs->format);
+ 		return -EFAULT;
+ 	}
+ 
+@@ -840,7 +848,7 @@ static int setup_frame(struct ksignal *ksig, sigset_t *set,
+ 
+ 	err |= __put_user(sig, &frame->sig);
+ 
+-	err |= __put_user(regs->vector, &frame->code);
++	err |= __put_user(tregs->vector, &frame->code);
+ 	err |= __put_user(&frame->sc, &frame->psc);
+ 
+ 	if (_NSIG_WORDS > 1)
+@@ -865,34 +873,28 @@ static int setup_frame(struct ksignal *ksig, sigset_t *set,
+ 
+ 	push_cache ((unsigned long) &frame->retcode);
+ 
+-	/*
+-	 * Set up registers for signal handler.  All the state we are about
+-	 * to destroy is successfully copied to sigframe.
+-	 */
+-	wrusp ((unsigned long) frame);
+-	regs->pc = (unsigned long) ksig->ka.sa.sa_handler;
+-	adjustformat(regs);
+-
+ 	/*
+ 	 * This is subtle; if we build more than one sigframe, all but the
+ 	 * first one will see frame format 0 and have fsize == 0, so we won't
+ 	 * screw stkadj.
+ 	 */
+-	if (fsize)
++	if (fsize) {
+ 		regs->stkadj = fsize;
+-
+-	/* Prepare to skip over the extra stuff in the exception frame.  */
+-	if (regs->stkadj) {
+-		struct pt_regs *tregs =
+-			(struct pt_regs *)((ulong)regs + regs->stkadj);
++		tregs = rte_regs(regs);
+ 		pr_debug("Performing stackadjust=%04lx\n", regs->stkadj);
+-		/* This must be copied with decreasing addresses to
+-                   handle overlaps.  */
+ 		tregs->vector = 0;
+ 		tregs->format = 0;
+-		tregs->pc = regs->pc;
+ 		tregs->sr = regs->sr;
+ 	}
++
++	/*
++	 * Set up registers for signal handler.  All the state we are about
++	 * to destroy is successfully copied to sigframe.
++	 */
++	wrusp ((unsigned long) frame);
++	tregs->pc = (unsigned long) ksig->ka.sa.sa_handler;
++	adjustformat(regs);
++
+ 	return 0;
+ }
+ 
+@@ -900,7 +902,8 @@ static int setup_rt_frame(struct ksignal *ksig, sigset_t *set,
+ 			   struct pt_regs *regs)
+ {
+ 	struct rt_sigframe __user *frame;
+-	int fsize = frame_extra_sizes(regs->format);
++	struct pt_regs *tregs = rte_regs(regs);
++	int fsize = frame_extra_sizes(tregs->format);
+ 	int err = 0, sig = ksig->sig;
+ 
+ 	if (fsize < 0) {
+@@ -949,34 +952,27 @@ static int setup_rt_frame(struct ksignal *ksig, sigset_t *set,
+ 
+ 	push_cache ((unsigned long) &frame->retcode);
+ 
+-	/*
+-	 * Set up registers for signal handler.  All the state we are about
+-	 * to destroy is successfully copied to sigframe.
+-	 */
+-	wrusp ((unsigned long) frame);
+-	regs->pc = (unsigned long) ksig->ka.sa.sa_handler;
+-	adjustformat(regs);
+-
+ 	/*
+ 	 * This is subtle; if we build more than one sigframe, all but the
+ 	 * first one will see frame format 0 and have fsize == 0, so we won't
+ 	 * screw stkadj.
+ 	 */
+-	if (fsize)
++	if (fsize) {
+ 		regs->stkadj = fsize;
+-
+-	/* Prepare to skip over the extra stuff in the exception frame.  */
+-	if (regs->stkadj) {
+-		struct pt_regs *tregs =
+-			(struct pt_regs *)((ulong)regs + regs->stkadj);
++		tregs = rte_regs(regs);
+ 		pr_debug("Performing stackadjust=%04lx\n", regs->stkadj);
+-		/* This must be copied with decreasing addresses to
+-                   handle overlaps.  */
+ 		tregs->vector = 0;
+ 		tregs->format = 0;
+-		tregs->pc = regs->pc;
+ 		tregs->sr = regs->sr;
+ 	}
++
++	/*
++	 * Set up registers for signal handler.  All the state we are about
++	 * to destroy is successfully copied to sigframe.
++	 */
++	wrusp ((unsigned long) frame);
++	tregs->pc = (unsigned long) ksig->ka.sa.sa_handler;
++	adjustformat(regs);
+ 	return 0;
+ }
+ 
+diff --git a/arch/mips/net/bpf_jit.c b/arch/mips/net/bpf_jit.c
+index 4d8cb9bb8365d..43e6597c720c2 100644
+--- a/arch/mips/net/bpf_jit.c
++++ b/arch/mips/net/bpf_jit.c
+@@ -662,6 +662,11 @@ static void build_epilogue(struct jit_ctx *ctx)
+ 	((int)K < 0 ? ((int)K >= SKF_LL_OFF ? func##_negative : func) : \
+ 	 func##_positive)
+ 
++static bool is_bad_offset(int b_off)
++{
++	return b_off > 0x1ffff || b_off < -0x20000;
++}
++
+ static int build_body(struct jit_ctx *ctx)
+ {
+ 	const struct bpf_prog *prog = ctx->skf;
+@@ -728,7 +733,10 @@ load_common:
+ 			/* Load return register on DS for failures */
+ 			emit_reg_move(r_ret, r_zero, ctx);
+ 			/* Return with error */
+-			emit_b(b_imm(prog->len, ctx), ctx);
++			b_off = b_imm(prog->len, ctx);
++			if (is_bad_offset(b_off))
++				return -E2BIG;
++			emit_b(b_off, ctx);
+ 			emit_nop(ctx);
+ 			break;
+ 		case BPF_LD | BPF_W | BPF_IND:
+@@ -775,8 +783,10 @@ load_ind:
+ 			emit_jalr(MIPS_R_RA, r_s0, ctx);
+ 			emit_reg_move(MIPS_R_A0, r_skb, ctx); /* delay slot */
+ 			/* Check the error value */
+-			emit_bcond(MIPS_COND_NE, r_ret, 0,
+-				   b_imm(prog->len, ctx), ctx);
++			b_off = b_imm(prog->len, ctx);
++			if (is_bad_offset(b_off))
++				return -E2BIG;
++			emit_bcond(MIPS_COND_NE, r_ret, 0, b_off, ctx);
+ 			emit_reg_move(r_ret, r_zero, ctx);
+ 			/* We are good */
+ 			/* X <- P[1:K] & 0xf */
+@@ -855,8 +865,10 @@ load_ind:
+ 			/* A /= X */
+ 			ctx->flags |= SEEN_X | SEEN_A;
+ 			/* Check if r_X is zero */
+-			emit_bcond(MIPS_COND_EQ, r_X, r_zero,
+-				   b_imm(prog->len, ctx), ctx);
++			b_off = b_imm(prog->len, ctx);
++			if (is_bad_offset(b_off))
++				return -E2BIG;
++			emit_bcond(MIPS_COND_EQ, r_X, r_zero, b_off, ctx);
+ 			emit_load_imm(r_ret, 0, ctx); /* delay slot */
+ 			emit_div(r_A, r_X, ctx);
+ 			break;
+@@ -864,8 +876,10 @@ load_ind:
+ 			/* A %= X */
+ 			ctx->flags |= SEEN_X | SEEN_A;
+ 			/* Check if r_X is zero */
+-			emit_bcond(MIPS_COND_EQ, r_X, r_zero,
+-				   b_imm(prog->len, ctx), ctx);
++			b_off = b_imm(prog->len, ctx);
++			if (is_bad_offset(b_off))
++				return -E2BIG;
++			emit_bcond(MIPS_COND_EQ, r_X, r_zero, b_off, ctx);
+ 			emit_load_imm(r_ret, 0, ctx); /* delay slot */
+ 			emit_mod(r_A, r_X, ctx);
+ 			break;
+@@ -926,7 +940,10 @@ load_ind:
+ 			break;
+ 		case BPF_JMP | BPF_JA:
+ 			/* pc += K */
+-			emit_b(b_imm(i + k + 1, ctx), ctx);
++			b_off = b_imm(i + k + 1, ctx);
++			if (is_bad_offset(b_off))
++				return -E2BIG;
++			emit_b(b_off, ctx);
+ 			emit_nop(ctx);
+ 			break;
+ 		case BPF_JMP | BPF_JEQ | BPF_K:
+@@ -1056,12 +1073,16 @@ jmp_cmp:
+ 			break;
+ 		case BPF_RET | BPF_A:
+ 			ctx->flags |= SEEN_A;
+-			if (i != prog->len - 1)
++			if (i != prog->len - 1) {
+ 				/*
+ 				 * If this is not the last instruction
+ 				 * then jump to the epilogue
+ 				 */
+-				emit_b(b_imm(prog->len, ctx), ctx);
++				b_off = b_imm(prog->len, ctx);
++				if (is_bad_offset(b_off))
++					return -E2BIG;
++				emit_b(b_off, ctx);
++			}
+ 			emit_reg_move(r_ret, r_A, ctx); /* delay slot */
+ 			break;
+ 		case BPF_RET | BPF_K:
+@@ -1075,7 +1096,10 @@ jmp_cmp:
+ 				 * If this is not the last instruction
+ 				 * then jump to the epilogue
+ 				 */
+-				emit_b(b_imm(prog->len, ctx), ctx);
++				b_off = b_imm(prog->len, ctx);
++				if (is_bad_offset(b_off))
++					return -E2BIG;
++				emit_b(b_off, ctx);
+ 				emit_nop(ctx);
+ 			}
+ 			break;
+@@ -1133,8 +1157,10 @@ jmp_cmp:
+ 			/* Load *dev pointer */
+ 			emit_load_ptr(r_s0, r_skb, off, ctx);
+ 			/* error (0) in the delay slot */
+-			emit_bcond(MIPS_COND_EQ, r_s0, r_zero,
+-				   b_imm(prog->len, ctx), ctx);
++			b_off = b_imm(prog->len, ctx);
++			if (is_bad_offset(b_off))
++				return -E2BIG;
++			emit_bcond(MIPS_COND_EQ, r_s0, r_zero, b_off, ctx);
+ 			emit_reg_move(r_ret, r_zero, ctx);
+ 			if (code == (BPF_ANC | SKF_AD_IFINDEX)) {
+ 				BUILD_BUG_ON(FIELD_SIZEOF(struct net_device, ifindex) != 4);
+@@ -1244,7 +1270,10 @@ void bpf_jit_compile(struct bpf_prog *fp)
+ 
+ 	/* Generate the actual JIT code */
+ 	build_prologue(&ctx);
+-	build_body(&ctx);
++	if (build_body(&ctx)) {
++		module_memfree(ctx.target);
++		goto out;
++	}
+ 	build_epilogue(&ctx);
+ 
+ 	/* Update the icache */
+diff --git a/arch/powerpc/boot/dts/fsl/t1023rdb.dts b/arch/powerpc/boot/dts/fsl/t1023rdb.dts
+index 5ba6fbfca2742..f82f85c65964c 100644
+--- a/arch/powerpc/boot/dts/fsl/t1023rdb.dts
++++ b/arch/powerpc/boot/dts/fsl/t1023rdb.dts
+@@ -154,7 +154,7 @@
+ 
+ 			fm1mac3: ethernet@e4000 {
+ 				phy-handle = <&sgmii_aqr_phy3>;
+-				phy-connection-type = "sgmii-2500";
++				phy-connection-type = "2500base-x";
+ 				sleep = <&rcpm 0x20000000>;
+ 			};
+ 
+diff --git a/arch/x86/events/core.c b/arch/x86/events/core.c
+index c1f7b3cb84a9b..39c298afa2eaa 100644
+--- a/arch/x86/events/core.c
++++ b/arch/x86/events/core.c
+@@ -2094,6 +2094,7 @@ static int x86_pmu_event_init(struct perf_event *event)
+ 	if (err) {
+ 		if (event->destroy)
+ 			event->destroy(event);
++		event->destroy = NULL;
+ 	}
+ 
+ 	if (ACCESS_ONCE(x86_pmu.attr_rdpmc))
+diff --git a/arch/xtensa/kernel/irq.c b/arch/xtensa/kernel/irq.c
+index 18e4ef34ac455..4182189b29de7 100644
+--- a/arch/xtensa/kernel/irq.c
++++ b/arch/xtensa/kernel/irq.c
+@@ -145,7 +145,7 @@ unsigned xtensa_get_ext_irq_no(unsigned irq)
+ 
+ void __init init_IRQ(void)
+ {
+-#ifdef CONFIG_OF
++#ifdef CONFIG_USE_OF
+ 	irqchip_init();
+ #else
+ #ifdef CONFIG_HAVE_SMP
+diff --git a/drivers/gpu/drm/nouveau/nouveau_debugfs.c b/drivers/gpu/drm/nouveau/nouveau_debugfs.c
+index 4561a786fab07..cce4833a60832 100644
+--- a/drivers/gpu/drm/nouveau/nouveau_debugfs.c
++++ b/drivers/gpu/drm/nouveau/nouveau_debugfs.c
+@@ -185,6 +185,7 @@ static const struct file_operations nouveau_pstate_fops = {
+ 	.open = nouveau_debugfs_pstate_open,
+ 	.read = seq_read,
+ 	.write = nouveau_debugfs_pstate_set,
++	.release = single_release,
+ };
+ 
+ static struct drm_info_list nouveau_debugfs_list[] = {
+diff --git a/drivers/hid/hid-apple.c b/drivers/hid/hid-apple.c
+index b58ab769aa7b3..4e3dd3f55a963 100644
+--- a/drivers/hid/hid-apple.c
++++ b/drivers/hid/hid-apple.c
+@@ -304,12 +304,19 @@ static int apple_event(struct hid_device *hdev, struct hid_field *field,
+ 
+ /*
+  * MacBook JIS keyboard has wrong logical maximum
++ * Magic Keyboard JIS has wrong logical maximum
+  */
+ static __u8 *apple_report_fixup(struct hid_device *hdev, __u8 *rdesc,
+ 		unsigned int *rsize)
+ {
+ 	struct apple_sc *asc = hid_get_drvdata(hdev);
+ 
++	if(*rsize >=71 && rdesc[70] == 0x65 && rdesc[64] == 0x65) {
++		hid_info(hdev,
++			 "fixing up Magic Keyboard JIS report descriptor\n");
++		rdesc[64] = rdesc[70] = 0xe7;
++	}
++
+ 	if ((asc->quirks & APPLE_RDESC_JIS) && *rsize >= 60 &&
+ 			rdesc[53] == 0x65 && rdesc[59] == 0x65) {
+ 		hid_info(hdev,
+diff --git a/drivers/i2c/i2c-core-acpi.c b/drivers/i2c/i2c-core-acpi.c
+index 52ae674ebf5bf..6f42856c15079 100644
+--- a/drivers/i2c/i2c-core-acpi.c
++++ b/drivers/i2c/i2c-core-acpi.c
+@@ -395,6 +395,7 @@ static int i2c_acpi_notify(struct notifier_block *nb, unsigned long value,
+ 			break;
+ 
+ 		i2c_acpi_register_device(adapter, adev, &info);
++		put_device(&adapter->dev);
+ 		break;
+ 	case ACPI_RECONFIG_DEVICE_REMOVE:
+ 		if (!acpi_device_enumerated(adev))
+diff --git a/drivers/net/ethernet/intel/i40e/i40e_main.c b/drivers/net/ethernet/intel/i40e/i40e_main.c
+index 65c17e39c405f..1555d32ddb962 100644
+--- a/drivers/net/ethernet/intel/i40e/i40e_main.c
++++ b/drivers/net/ethernet/intel/i40e/i40e_main.c
+@@ -6958,7 +6958,7 @@ static int i40e_get_capabilities(struct i40e_pf *pf)
+ 		if (pf->hw.aq.asq_last_status == I40E_AQ_RC_ENOMEM) {
+ 			/* retry with a larger buffer */
+ 			buf_len = data_size;
+-		} else if (pf->hw.aq.asq_last_status != I40E_AQ_RC_OK) {
++		} else if (pf->hw.aq.asq_last_status != I40E_AQ_RC_OK || err) {
+ 			dev_info(&pf->pdev->dev,
+ 				 "capability discovery failed, err %s aq_err %s\n",
+ 				 i40e_stat_str(&pf->hw, err),
+diff --git a/drivers/net/ethernet/sun/Kconfig b/drivers/net/ethernet/sun/Kconfig
+index b2caf5132bd2b..eea4179e63eb1 100644
+--- a/drivers/net/ethernet/sun/Kconfig
++++ b/drivers/net/ethernet/sun/Kconfig
+@@ -72,6 +72,7 @@ config CASSINI
+ config SUNVNET_COMMON
+ 	tristate "Common routines to support Sun Virtual Networking"
+ 	depends on SUN_LDOMS
++	depends on INET
+ 	default m
+ 
+ config SUNVNET
+diff --git a/drivers/net/phy/bcm7xxx.c b/drivers/net/phy/bcm7xxx.c
+index 3c5b2a2e2fcc3..11f5a7116adbd 100644
+--- a/drivers/net/phy/bcm7xxx.c
++++ b/drivers/net/phy/bcm7xxx.c
+@@ -30,7 +30,12 @@
+ #define MII_BCM7XXX_SHD_2_ADDR_CTRL	0xe
+ #define MII_BCM7XXX_SHD_2_CTRL_STAT	0xf
+ #define MII_BCM7XXX_SHD_2_BIAS_TRIM	0x1a
++#define MII_BCM7XXX_SHD_3_PCS_CTRL	0x0
++#define MII_BCM7XXX_SHD_3_PCS_STATUS	0x1
++#define MII_BCM7XXX_SHD_3_EEE_CAP	0x2
+ #define MII_BCM7XXX_SHD_3_AN_EEE_ADV	0x3
++#define MII_BCM7XXX_SHD_3_EEE_LP	0x4
++#define MII_BCM7XXX_SHD_3_EEE_WK_ERR	0x5
+ #define MII_BCM7XXX_SHD_3_PCS_CTRL_2	0x6
+ #define  MII_BCM7XXX_PCS_CTRL_2_DEF	0x4400
+ #define MII_BCM7XXX_SHD_3_AN_STAT	0xb
+@@ -462,6 +467,93 @@ static int bcm7xxx_28nm_ephy_config_init(struct phy_device *phydev)
+ 	return bcm7xxx_28nm_ephy_apd_enable(phydev);
+ }
+ 
++#define MII_BCM7XXX_REG_INVALID	0xff
++
++static u8 bcm7xxx_28nm_ephy_regnum_to_shd(u16 regnum)
++{
++	switch (regnum) {
++	case MDIO_CTRL1:
++		return MII_BCM7XXX_SHD_3_PCS_CTRL;
++	case MDIO_STAT1:
++		return MII_BCM7XXX_SHD_3_PCS_STATUS;
++	case MDIO_PCS_EEE_ABLE:
++		return MII_BCM7XXX_SHD_3_EEE_CAP;
++	case MDIO_AN_EEE_ADV:
++		return MII_BCM7XXX_SHD_3_AN_EEE_ADV;
++	case MDIO_AN_EEE_LPABLE:
++		return MII_BCM7XXX_SHD_3_EEE_LP;
++	case MDIO_PCS_EEE_WK_ERR:
++		return MII_BCM7XXX_SHD_3_EEE_WK_ERR;
++	default:
++		return MII_BCM7XXX_REG_INVALID;
++	}
++}
++
++static bool bcm7xxx_28nm_ephy_dev_valid(int devnum)
++{
++	return devnum == MDIO_MMD_AN || devnum == MDIO_MMD_PCS;
++}
++
++static int bcm7xxx_28nm_ephy_read_mmd(struct phy_device *phydev,
++				      int devnum, u16 regnum)
++{
++	u8 shd = bcm7xxx_28nm_ephy_regnum_to_shd(regnum);
++	int ret;
++
++	if (!bcm7xxx_28nm_ephy_dev_valid(devnum) ||
++	    shd == MII_BCM7XXX_REG_INVALID)
++		return -EOPNOTSUPP;
++
++	/* set shadow mode 2 */
++	ret = phy_set_clr_bits(phydev, MII_BCM7XXX_TEST,
++			       MII_BCM7XXX_SHD_MODE_2, 0);
++	if (ret < 0)
++		return ret;
++
++	/* Access the desired shadow register address */
++	ret = phy_write(phydev, MII_BCM7XXX_SHD_2_ADDR_CTRL, shd);
++	if (ret < 0)
++		goto reset_shadow_mode;
++
++	ret = phy_read(phydev, MII_BCM7XXX_SHD_2_CTRL_STAT);
++
++reset_shadow_mode:
++	/* reset shadow mode 2 */
++	phy_set_clr_bits(phydev, MII_BCM7XXX_TEST, 0,
++			 MII_BCM7XXX_SHD_MODE_2);
++	return ret;
++}
++
++static int bcm7xxx_28nm_ephy_write_mmd(struct phy_device *phydev,
++				       int devnum, u16 regnum, u16 val)
++{
++	u8 shd = bcm7xxx_28nm_ephy_regnum_to_shd(regnum);
++	int ret;
++
++	if (!bcm7xxx_28nm_ephy_dev_valid(devnum) ||
++	    shd == MII_BCM7XXX_REG_INVALID)
++		return -EOPNOTSUPP;
++
++	/* set shadow mode 2 */
++	ret = phy_set_clr_bits(phydev, MII_BCM7XXX_TEST,
++			       MII_BCM7XXX_SHD_MODE_2, 0);
++	if (ret < 0)
++		return ret;
++
++	/* Access the desired shadow register address */
++	ret = phy_write(phydev, MII_BCM7XXX_SHD_2_ADDR_CTRL, shd);
++	if (ret < 0)
++		goto reset_shadow_mode;
++
++	/* Write the desired value in the shadow register */
++	phy_write(phydev, MII_BCM7XXX_SHD_2_CTRL_STAT, val);
++
++reset_shadow_mode:
++	/* reset shadow mode 2 */
++	return phy_set_clr_bits(phydev, MII_BCM7XXX_TEST, 0,
++				MII_BCM7XXX_SHD_MODE_2);
++}
++
+ static int bcm7xxx_28nm_ephy_resume(struct phy_device *phydev)
+ {
+ 	int ret;
+@@ -637,6 +729,8 @@ static int bcm7xxx_28nm_probe(struct phy_device *phydev)
+ 	.get_strings	= bcm_phy_get_strings,				\
+ 	.get_stats	= bcm7xxx_28nm_get_phy_stats,			\
+ 	.probe		= bcm7xxx_28nm_probe,				\
++	.read_mmd	= bcm7xxx_28nm_ephy_read_mmd,			\
++	.write_mmd	= bcm7xxx_28nm_ephy_write_mmd,			\
+ }
+ 
+ #define BCM7XXX_40NM_EPHY(_oui, _name)					\
+diff --git a/drivers/net/phy/mdio_bus.c b/drivers/net/phy/mdio_bus.c
+index 5fc7b6c1a4420..5ef9bbbab3dbb 100644
+--- a/drivers/net/phy/mdio_bus.c
++++ b/drivers/net/phy/mdio_bus.c
+@@ -344,6 +344,13 @@ int __mdiobus_register(struct mii_bus *bus, struct module *owner)
+ 	bus->dev.groups = NULL;
+ 	dev_set_name(&bus->dev, "%s", bus->id);
+ 
++	/* We need to set state to MDIOBUS_UNREGISTERED to correctly release
++	 * the device in mdiobus_free()
++	 *
++	 * State will be updated later in this function in case of success
++	 */
++	bus->state = MDIOBUS_UNREGISTERED;
++
+ 	err = device_register(&bus->dev);
+ 	if (err) {
+ 		pr_err("mii_bus %s failed to register\n", bus->id);
+diff --git a/drivers/ptp/ptp_pch.c b/drivers/ptp/ptp_pch.c
+index b3285175f20f0..8461d7f92d313 100644
+--- a/drivers/ptp/ptp_pch.c
++++ b/drivers/ptp/ptp_pch.c
+@@ -698,6 +698,7 @@ static const struct pci_device_id pch_ieee1588_pcidev_id[] = {
+ 	 },
+ 	{0}
+ };
++MODULE_DEVICE_TABLE(pci, pch_ieee1588_pcidev_id);
+ 
+ static struct pci_driver pch_driver = {
+ 	.name = KBUILD_MODNAME,
+diff --git a/drivers/scsi/ses.c b/drivers/scsi/ses.c
+index 4b993607887cf..84b234bbd07db 100644
+--- a/drivers/scsi/ses.c
++++ b/drivers/scsi/ses.c
+@@ -134,7 +134,7 @@ static int ses_recv_diag(struct scsi_device *sdev, int page_code,
+ static int ses_send_diag(struct scsi_device *sdev, int page_code,
+ 			 void *buf, int bufflen)
+ {
+-	u32 result;
++	int result;
+ 
+ 	unsigned char cmd[] = {
+ 		SEND_DIAGNOSTIC,
+diff --git a/drivers/scsi/virtio_scsi.c b/drivers/scsi/virtio_scsi.c
+index 1f4bd7d0154d4..2839701ffab5e 100644
+--- a/drivers/scsi/virtio_scsi.c
++++ b/drivers/scsi/virtio_scsi.c
+@@ -336,7 +336,7 @@ static void virtscsi_handle_transport_reset(struct virtio_scsi *vscsi,
+ 		}
+ 		break;
+ 	default:
+-		pr_info("Unsupport virtio scsi event reason %x\n", event->reason);
++		pr_info("Unsupported virtio scsi event reason %x\n", event->reason);
+ 	}
+ }
+ 
+@@ -389,7 +389,7 @@ static void virtscsi_handle_event(struct work_struct *work)
+ 		virtscsi_handle_param_change(vscsi, event);
+ 		break;
+ 	default:
+-		pr_err("Unsupport virtio scsi event %x\n", event->event);
++		pr_err("Unsupported virtio scsi event %x\n", event->event);
+ 	}
+ 	virtscsi_kick_event(vscsi, event_node);
+ }
+diff --git a/drivers/usb/Kconfig b/drivers/usb/Kconfig
+index 72eb3e41e3b65..5923ebcffcdf2 100644
+--- a/drivers/usb/Kconfig
++++ b/drivers/usb/Kconfig
+@@ -174,8 +174,7 @@ source "drivers/usb/typec/Kconfig"
+ 
+ config USB_LED_TRIG
+ 	bool "USB LED Triggers"
+-	depends on LEDS_CLASS && LEDS_TRIGGERS
+-	select USB_COMMON
++	depends on LEDS_CLASS && USB_COMMON && LEDS_TRIGGERS
+ 	help
+ 	  This option adds LED triggers for USB host and/or gadget activity.
+ 
+diff --git a/drivers/usb/class/cdc-acm.c b/drivers/usb/class/cdc-acm.c
+index bd9a11782e154..c653635ce5c20 100644
+--- a/drivers/usb/class/cdc-acm.c
++++ b/drivers/usb/class/cdc-acm.c
+@@ -351,6 +351,9 @@ static void acm_process_notification(struct acm *acm, unsigned char *buf)
+ 			acm->iocount.overrun++;
+ 		spin_unlock(&acm->read_lock);
+ 
++		if (newctrl & ACM_CTRL_BRK)
++			tty_flip_buffer_push(&acm->port);
++
+ 		if (difference)
+ 			wake_up_all(&acm->wioctl);
+ 
+@@ -486,11 +489,16 @@ static int acm_submit_read_urbs(struct acm *acm, gfp_t mem_flags)
+ 
+ static void acm_process_read_urb(struct acm *acm, struct urb *urb)
+ {
++	unsigned long flags;
++
+ 	if (!urb->actual_length)
+ 		return;
+ 
++	spin_lock_irqsave(&acm->read_lock, flags);
+ 	tty_insert_flip_string(&acm->port, urb->transfer_buffer,
+ 			urb->actual_length);
++	spin_unlock_irqrestore(&acm->read_lock, flags);
++
+ 	tty_flip_buffer_push(&acm->port);
+ }
+ 
+diff --git a/drivers/xen/balloon.c b/drivers/xen/balloon.c
+index a697c64a65067..92bb71c040f97 100644
+--- a/drivers/xen/balloon.c
++++ b/drivers/xen/balloon.c
+@@ -571,12 +571,12 @@ static enum bp_state decrease_reservation(unsigned long nr_pages, gfp_t gfp)
+ }
+ 
+ /*
+- * Stop waiting if either state is not BP_EAGAIN and ballooning action is
+- * needed, or if the credit has changed while state is BP_EAGAIN.
++ * Stop waiting if either state is BP_DONE and ballooning action is
++ * needed, or if the credit has changed while state is not BP_DONE.
+  */
+ static bool balloon_thread_cond(enum bp_state state, long credit)
+ {
+-	if (state != BP_EAGAIN)
++	if (state == BP_DONE)
+ 		credit = 0;
+ 
+ 	return current_credit() != credit || kthread_should_stop();
+@@ -596,10 +596,19 @@ static int balloon_thread(void *unused)
+ 
+ 	set_freezable();
+ 	for (;;) {
+-		if (state == BP_EAGAIN)
+-			timeout = balloon_stats.schedule_delay * HZ;
+-		else
++		switch (state) {
++		case BP_DONE:
++		case BP_ECANCELED:
+ 			timeout = 3600 * HZ;
++			break;
++		case BP_EAGAIN:
++			timeout = balloon_stats.schedule_delay * HZ;
++			break;
++		case BP_WAIT:
++			timeout = HZ;
++			break;
++		}
++
+ 		credit = current_credit();
+ 
+ 		wait_event_freezable_timeout(balloon_thread_wq,
+diff --git a/fs/nfsd/nfs4xdr.c b/fs/nfsd/nfs4xdr.c
+index c1e9233340120..2e7349b2dd4d4 100644
+--- a/fs/nfsd/nfs4xdr.c
++++ b/fs/nfsd/nfs4xdr.c
+@@ -3082,15 +3082,18 @@ nfsd4_encode_dirent(void *ccdv, const char *name, int namlen,
+ 		goto fail;
+ 	cd->rd_maxcount -= entry_bytes;
+ 	/*
+-	 * RFC 3530 14.2.24 describes rd_dircount as only a "hint", so
+-	 * let's always let through the first entry, at least:
++	 * RFC 3530 14.2.24 describes rd_dircount as only a "hint", and
++	 * notes that it could be zero. If it is zero, then the server
++	 * should enforce only the rd_maxcount value.
+ 	 */
+-	if (!cd->rd_dircount)
+-		goto fail;
+-	name_and_cookie = 4 + 4 * XDR_QUADLEN(namlen) + 8;
+-	if (name_and_cookie > cd->rd_dircount && cd->cookie_offset)
+-		goto fail;
+-	cd->rd_dircount -= min(cd->rd_dircount, name_and_cookie);
++	if (cd->rd_dircount) {
++		name_and_cookie = 4 + 4 * XDR_QUADLEN(namlen) + 8;
++		if (name_and_cookie > cd->rd_dircount && cd->cookie_offset)
++			goto fail;
++		cd->rd_dircount -= min(cd->rd_dircount, name_and_cookie);
++		if (!cd->rd_dircount)
++			cd->rd_maxcount = 0;
++	}
+ 
+ 	cd->cookie_offset = cookie_offset;
+ skip_entry:
+diff --git a/fs/overlayfs/dir.c b/fs/overlayfs/dir.c
+index 5bdc85ad13a2f..4869fa508616f 100644
+--- a/fs/overlayfs/dir.c
++++ b/fs/overlayfs/dir.c
+@@ -1032,9 +1032,13 @@ static int ovl_rename(struct inode *olddir, struct dentry *old,
+ 				goto out_dput;
+ 		}
+ 	} else {
+-		if (!d_is_negative(newdentry) &&
+-		    (!new_opaque || !ovl_is_whiteout(newdentry)))
+-			goto out_dput;
++		if (!d_is_negative(newdentry)) {
++			if (!new_opaque || !ovl_is_whiteout(newdentry))
++				goto out_dput;
++		} else {
++			if (flags & RENAME_EXCHANGE)
++				goto out_dput;
++		}
+ 	}
+ 
+ 	if (olddentry == trap)
+diff --git a/include/linux/sched.h b/include/linux/sched.h
+index 99650f05c271a..914cc8b180eda 100644
+--- a/include/linux/sched.h
++++ b/include/linux/sched.h
+@@ -1390,7 +1390,7 @@ extern struct pid *cad_pid;
+ #define tsk_used_math(p)			((p)->flags & PF_USED_MATH)
+ #define used_math()				tsk_used_math(current)
+ 
+-static inline bool is_percpu_thread(void)
++static __always_inline bool is_percpu_thread(void)
+ {
+ #ifdef CONFIG_SMP
+ 	return (current->flags & PF_NO_SETAFFINITY) &&
+diff --git a/kernel/bpf/stackmap.c b/kernel/bpf/stackmap.c
+index 1d4c3fba0f8cd..099dc780a92f2 100644
+--- a/kernel/bpf/stackmap.c
++++ b/kernel/bpf/stackmap.c
+@@ -28,7 +28,8 @@ struct bpf_stack_map {
+ 
+ static int prealloc_elems_and_freelist(struct bpf_stack_map *smap)
+ {
+-	u32 elem_size = sizeof(struct stack_map_bucket) + smap->map.value_size;
++	u64 elem_size = sizeof(struct stack_map_bucket) +
++			(u64)smap->map.value_size;
+ 	int err;
+ 
+ 	smap->elems = bpf_map_area_alloc(elem_size * smap->map.max_entries,
+diff --git a/lib/test_bpf.c b/lib/test_bpf.c
+index 9a8f957ad86e9..724674c421ca7 100644
+--- a/lib/test_bpf.c
++++ b/lib/test_bpf.c
+@@ -355,6 +355,52 @@ static int bpf_fill_maxinsns11(struct bpf_test *self)
+ 	return __bpf_fill_ja(self, BPF_MAXINSNS, 68);
+ }
+ 
++static int bpf_fill_maxinsns12(struct bpf_test *self)
++{
++	unsigned int len = BPF_MAXINSNS;
++	struct sock_filter *insn;
++	int i = 0;
++
++	insn = kmalloc_array(len, sizeof(*insn), GFP_KERNEL);
++	if (!insn)
++		return -ENOMEM;
++
++	insn[0] = __BPF_JUMP(BPF_JMP | BPF_JA, len - 2, 0, 0);
++
++	for (i = 1; i < len - 1; i++)
++		insn[i] = __BPF_STMT(BPF_LDX | BPF_B | BPF_MSH, 0);
++
++	insn[len - 1] = __BPF_STMT(BPF_RET | BPF_K, 0xabababab);
++
++	self->u.ptr.insns = insn;
++	self->u.ptr.len = len;
++
++	return 0;
++}
++
++static int bpf_fill_maxinsns13(struct bpf_test *self)
++{
++	unsigned int len = BPF_MAXINSNS;
++	struct sock_filter *insn;
++	int i = 0;
++
++	insn = kmalloc_array(len, sizeof(*insn), GFP_KERNEL);
++	if (!insn)
++		return -ENOMEM;
++
++	for (i = 0; i < len - 3; i++)
++		insn[i] = __BPF_STMT(BPF_LDX | BPF_B | BPF_MSH, 0);
++
++	insn[len - 3] = __BPF_STMT(BPF_LD | BPF_IMM, 0xabababab);
++	insn[len - 2] = __BPF_STMT(BPF_ALU | BPF_XOR | BPF_X, 0);
++	insn[len - 1] = __BPF_STMT(BPF_RET | BPF_A, 0);
++
++	self->u.ptr.insns = insn;
++	self->u.ptr.len = len;
++
++	return 0;
++}
++
+ static int bpf_fill_ja(struct bpf_test *self)
+ {
+ 	/* Hits exactly 11 passes on x86_64 JIT. */
+@@ -5437,6 +5483,23 @@ static struct bpf_test tests[] = {
+ 		.fill_helper = bpf_fill_maxinsns11,
+ 		.expected_errcode = -ENOTSUPP,
+ 	},
++	{
++		"BPF_MAXINSNS: jump over MSH",
++		{ },
++		CLASSIC | FLAG_EXPECTED_FAIL,
++		{ 0xfa, 0xfb, 0xfc, 0xfd, },
++		{ { 4, 0xabababab } },
++		.fill_helper = bpf_fill_maxinsns12,
++		.expected_errcode = -EINVAL,
++	},
++	{
++		"BPF_MAXINSNS: exec all MSH",
++		{ },
++		CLASSIC,
++		{ 0xfa, 0xfb, 0xfc, 0xfd, },
++		{ { 4, 0xababab83 } },
++		.fill_helper = bpf_fill_maxinsns13,
++	},
+ 	{
+ 		"BPF_MAXINSNS: ld_abs+get_processor_id",
+ 		{ },
+diff --git a/net/bridge/br_netlink.c b/net/bridge/br_netlink.c
+index 08190db0a2dca..79e306ec1416c 100644
+--- a/net/bridge/br_netlink.c
++++ b/net/bridge/br_netlink.c
+@@ -1437,7 +1437,7 @@ static size_t br_get_linkxstats_size(const struct net_device *dev, int attr)
+ 	}
+ 
+ 	return numvls * nla_total_size(sizeof(struct bridge_vlan_xstats)) +
+-	       nla_total_size(sizeof(struct br_mcast_stats)) +
++	       nla_total_size_64bit(sizeof(struct br_mcast_stats)) +
+ 	       nla_total_size(0);
+ }
+ 
+diff --git a/net/core/rtnetlink.c b/net/core/rtnetlink.c
+index 3bcaecc7ba69f..d7e2cb7ae1fa4 100644
+--- a/net/core/rtnetlink.c
++++ b/net/core/rtnetlink.c
+@@ -4053,7 +4053,7 @@ nla_put_failure:
+ static size_t if_nlmsg_stats_size(const struct net_device *dev,
+ 				  u32 filter_mask)
+ {
+-	size_t size = 0;
++	size_t size = NLMSG_ALIGN(sizeof(struct if_stats_msg));
+ 
+ 	if (stats_attr_valid(filter_mask, IFLA_STATS_LINK_64, 0))
+ 		size += nla_total_size_64bit(sizeof(struct rtnl_link_stats64));
+diff --git a/net/ipv6/netfilter/ip6_tables.c b/net/ipv6/netfilter/ip6_tables.c
+index d0d5e43727307..93f4441547289 100644
+--- a/net/ipv6/netfilter/ip6_tables.c
++++ b/net/ipv6/netfilter/ip6_tables.c
+@@ -275,6 +275,7 @@ ip6t_do_table(struct sk_buff *skb,
+ 	 * things we don't know, ie. tcp syn flag or ports).  If the
+ 	 * rule is also a fragment-specific rule, non-fragments won't
+ 	 * match it. */
++	acpar.fragoff = 0;
+ 	acpar.hotdrop = false;
+ 	acpar.state   = state;
+ 
+diff --git a/net/mac80211/rx.c b/net/mac80211/rx.c
+index 87926c6fe0bf4..cbe1177d95f9e 100644
+--- a/net/mac80211/rx.c
++++ b/net/mac80211/rx.c
+@@ -3714,7 +3714,8 @@ static bool ieee80211_accept_frame(struct ieee80211_rx_data *rx)
+ 		if (!bssid)
+ 			return false;
+ 		if (ether_addr_equal(sdata->vif.addr, hdr->addr2) ||
+-		    ether_addr_equal(sdata->u.ibss.bssid, hdr->addr2))
++		    ether_addr_equal(sdata->u.ibss.bssid, hdr->addr2) ||
++		    !is_valid_ether_addr(hdr->addr2))
+ 			return false;
+ 		if (ieee80211_is_beacon(hdr->frame_control))
+ 			return true;
+diff --git a/net/netlink/af_netlink.c b/net/netlink/af_netlink.c
+index 955041c547025..d1fd9f7c867ef 100644
+--- a/net/netlink/af_netlink.c
++++ b/net/netlink/af_netlink.c
+@@ -567,7 +567,10 @@ static int netlink_insert(struct sock *sk, u32 portid)
+ 
+ 	/* We need to ensure that the socket is hashed and visible. */
+ 	smp_wmb();
+-	nlk_sk(sk)->bound = portid;
++	/* Paired with lockless reads from netlink_bind(),
++	 * netlink_connect() and netlink_sendmsg().
++	 */
++	WRITE_ONCE(nlk_sk(sk)->bound, portid);
+ 
+ err:
+ 	release_sock(sk);
+@@ -986,7 +989,8 @@ static int netlink_bind(struct socket *sock, struct sockaddr *addr,
+ 	else if (nlk->ngroups < 8*sizeof(groups))
+ 		groups &= (1UL << nlk->ngroups) - 1;
+ 
+-	bound = nlk->bound;
++	/* Paired with WRITE_ONCE() in netlink_insert() */
++	bound = READ_ONCE(nlk->bound);
+ 	if (bound) {
+ 		/* Ensure nlk->portid is up-to-date. */
+ 		smp_rmb();
+@@ -1072,8 +1076,9 @@ static int netlink_connect(struct socket *sock, struct sockaddr *addr,
+ 
+ 	/* No need for barriers here as we return to user-space without
+ 	 * using any of the bound attributes.
++	 * Paired with WRITE_ONCE() in netlink_insert().
+ 	 */
+-	if (!nlk->bound)
++	if (!READ_ONCE(nlk->bound))
+ 		err = netlink_autobind(sock);
+ 
+ 	if (err == 0) {
+@@ -1839,7 +1844,8 @@ static int netlink_sendmsg(struct socket *sock, struct msghdr *msg, size_t len)
+ 		dst_group = nlk->dst_group;
+ 	}
+ 
+-	if (!nlk->bound) {
++	/* Paired with WRITE_ONCE() in netlink_insert() */
++	if (!READ_ONCE(nlk->bound)) {
+ 		err = netlink_autobind(sock);
+ 		if (err)
+ 			goto out;
+diff --git a/net/sched/sch_fifo.c b/net/sched/sch_fifo.c
+index 1e37247656f80..8b7110cbcce4c 100644
+--- a/net/sched/sch_fifo.c
++++ b/net/sched/sch_fifo.c
+@@ -151,6 +151,9 @@ int fifo_set_limit(struct Qdisc *q, unsigned int limit)
+ 	if (strncmp(q->ops->id + 1, "fifo", 4) != 0)
+ 		return 0;
+ 
++	if (!q->ops->change)
++		return 0;
++
+ 	nla = kmalloc(nla_attr_size(sizeof(struct tc_fifo_qopt)), GFP_KERNEL);
+ 	if (nla) {
+ 		nla->nla_type = RTM_NEWQDISC;