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SubjectRe: Linux 4.19.56
diff --git a/Makefile b/Makefile
index 3addd4c286fa..a76c61f77bcd 100644
--- a/Makefile
+++ b/Makefile
@@ -1,7 +1,7 @@
# SPDX-License-Identifier: GPL-2.0
VERSION = 4
PATCHLEVEL = 19
-SUBLEVEL = 55
+SUBLEVEL = 56
EXTRAVERSION =
NAME = "People's Front"

@@ -652,6 +652,7 @@ KBUILD_CFLAGS += $(call cc-disable-warning,frame-address,)
KBUILD_CFLAGS += $(call cc-disable-warning, format-truncation)
KBUILD_CFLAGS += $(call cc-disable-warning, format-overflow)
KBUILD_CFLAGS += $(call cc-disable-warning, int-in-bool-context)
+KBUILD_CFLAGS += $(call cc-disable-warning, address-of-packed-member)

ifdef CONFIG_CC_OPTIMIZE_FOR_SIZE
KBUILD_CFLAGS += -Os $(call cc-disable-warning,maybe-uninitialized,)
@@ -696,7 +697,6 @@ ifeq ($(cc-name),clang)
KBUILD_CPPFLAGS += $(call cc-option,-Qunused-arguments,)
KBUILD_CFLAGS += $(call cc-disable-warning, format-invalid-specifier)
KBUILD_CFLAGS += $(call cc-disable-warning, gnu)
-KBUILD_CFLAGS += $(call cc-disable-warning, address-of-packed-member)
# Quiet clang warning: comparison of unsigned expression < 0 is always false
KBUILD_CFLAGS += $(call cc-disable-warning, tautological-compare)
# CLANG uses a _MergedGlobals as optimization, but this breaks modpost, as the
diff --git a/arch/arc/boot/dts/hsdk.dts b/arch/arc/boot/dts/hsdk.dts
index ef149f59929a..d131c54acd3e 100644
--- a/arch/arc/boot/dts/hsdk.dts
+++ b/arch/arc/boot/dts/hsdk.dts
@@ -175,6 +175,7 @@
interrupt-names = "macirq";
phy-mode = "rgmii";
snps,pbl = <32>;
+ snps,multicast-filter-bins = <256>;
clocks = <&gmacclk>;
clock-names = "stmmaceth";
phy-handle = <&phy0>;
@@ -183,6 +184,9 @@
mac-address = [00 00 00 00 00 00]; /* Filled in by U-Boot */
dma-coherent;

+ tx-fifo-depth = <4096>;
+ rx-fifo-depth = <4096>;
+
mdio {
#address-cells = <1>;
#size-cells = <0>;
diff --git a/arch/arc/include/asm/cmpxchg.h b/arch/arc/include/asm/cmpxchg.h
index d819de1c5d10..3ea4112c8302 100644
--- a/arch/arc/include/asm/cmpxchg.h
+++ b/arch/arc/include/asm/cmpxchg.h
@@ -92,8 +92,11 @@ __cmpxchg(volatile void *ptr, unsigned long expected, unsigned long new)

#endif /* CONFIG_ARC_HAS_LLSC */

-#define cmpxchg(ptr, o, n) ((typeof(*(ptr)))__cmpxchg((ptr), \
- (unsigned long)(o), (unsigned long)(n)))
+#define cmpxchg(ptr, o, n) ({ \
+ (typeof(*(ptr)))__cmpxchg((ptr), \
+ (unsigned long)(o), \
+ (unsigned long)(n)); \
+})

/*
* atomic_cmpxchg is same as cmpxchg
@@ -198,8 +201,11 @@ static inline unsigned long __xchg(unsigned long val, volatile void *ptr,
return __xchg_bad_pointer();
}

-#define xchg(ptr, with) ((typeof(*(ptr)))__xchg((unsigned long)(with), (ptr), \
- sizeof(*(ptr))))
+#define xchg(ptr, with) ({ \
+ (typeof(*(ptr)))__xchg((unsigned long)(with), \
+ (ptr), \
+ sizeof(*(ptr))); \
+})

#endif /* CONFIG_ARC_PLAT_EZNPS */

diff --git a/arch/arc/mm/tlb.c b/arch/arc/mm/tlb.c
index 4097764fea23..fa18c00b0cfd 100644
--- a/arch/arc/mm/tlb.c
+++ b/arch/arc/mm/tlb.c
@@ -911,9 +911,11 @@ void do_tlb_overlap_fault(unsigned long cause, unsigned long address,
struct pt_regs *regs)
{
struct cpuinfo_arc_mmu *mmu = &cpuinfo_arc700[smp_processor_id()].mmu;
- unsigned int pd0[mmu->ways];
unsigned long flags;
- int set;
+ int set, n_ways = mmu->ways;
+
+ n_ways = min(n_ways, 4);
+ BUG_ON(mmu->ways > 4);

local_irq_save(flags);

@@ -921,9 +923,10 @@ void do_tlb_overlap_fault(unsigned long cause, unsigned long address,
for (set = 0; set < mmu->sets; set++) {

int is_valid, way;
+ unsigned int pd0[4];

/* read out all the ways of current set */
- for (way = 0, is_valid = 0; way < mmu->ways; way++) {
+ for (way = 0, is_valid = 0; way < n_ways; way++) {
write_aux_reg(ARC_REG_TLBINDEX,
SET_WAY_TO_IDX(mmu, set, way));
write_aux_reg(ARC_REG_TLBCOMMAND, TLBRead);
@@ -937,14 +940,14 @@ void do_tlb_overlap_fault(unsigned long cause, unsigned long address,
continue;

/* Scan the set for duplicate ways: needs a nested loop */
- for (way = 0; way < mmu->ways - 1; way++) {
+ for (way = 0; way < n_ways - 1; way++) {

int n;

if (!pd0[way])
continue;

- for (n = way + 1; n < mmu->ways; n++) {
+ for (n = way + 1; n < n_ways; n++) {
if (pd0[way] != pd0[n])
continue;

diff --git a/arch/arm/boot/dts/am57xx-idk-common.dtsi b/arch/arm/boot/dts/am57xx-idk-common.dtsi
index c9063ffca524..3fd9a1676d88 100644
--- a/arch/arm/boot/dts/am57xx-idk-common.dtsi
+++ b/arch/arm/boot/dts/am57xx-idk-common.dtsi
@@ -410,6 +410,7 @@
vqmmc-supply = <&ldo1_reg>;
bus-width = <4>;
cd-gpios = <&gpio6 27 GPIO_ACTIVE_LOW>; /* gpio 219 */
+ no-1-8-v;
};

&mmc2 {
diff --git a/arch/arm/boot/dts/dra76x-mmc-iodelay.dtsi b/arch/arm/boot/dts/dra76x-mmc-iodelay.dtsi
index baba7b00eca7..fdca48186916 100644
--- a/arch/arm/boot/dts/dra76x-mmc-iodelay.dtsi
+++ b/arch/arm/boot/dts/dra76x-mmc-iodelay.dtsi
@@ -22,7 +22,7 @@
*
* Datamanual Revisions:
*
- * DRA76x Silicon Revision 1.0: SPRS993A, Revised July 2017
+ * DRA76x Silicon Revision 1.0: SPRS993E, Revised December 2018
*
*/

@@ -169,25 +169,25 @@
/* Corresponds to MMC2_HS200_MANUAL1 in datamanual */
mmc2_iodelay_hs200_conf: mmc2_iodelay_hs200_conf {
pinctrl-pin-array = <
- 0x190 A_DELAY_PS(384) G_DELAY_PS(0) /* CFG_GPMC_A19_OEN */
- 0x194 A_DELAY_PS(0) G_DELAY_PS(174) /* CFG_GPMC_A19_OUT */
- 0x1a8 A_DELAY_PS(410) G_DELAY_PS(0) /* CFG_GPMC_A20_OEN */
- 0x1ac A_DELAY_PS(85) G_DELAY_PS(0) /* CFG_GPMC_A20_OUT */
- 0x1b4 A_DELAY_PS(468) G_DELAY_PS(0) /* CFG_GPMC_A21_OEN */
- 0x1b8 A_DELAY_PS(139) G_DELAY_PS(0) /* CFG_GPMC_A21_OUT */
- 0x1c0 A_DELAY_PS(676) G_DELAY_PS(0) /* CFG_GPMC_A22_OEN */
- 0x1c4 A_DELAY_PS(69) G_DELAY_PS(0) /* CFG_GPMC_A22_OUT */
- 0x1d0 A_DELAY_PS(1062) G_DELAY_PS(154) /* CFG_GPMC_A23_OUT */
- 0x1d8 A_DELAY_PS(640) G_DELAY_PS(0) /* CFG_GPMC_A24_OEN */
- 0x1dc A_DELAY_PS(0) G_DELAY_PS(0) /* CFG_GPMC_A24_OUT */
- 0x1e4 A_DELAY_PS(356) G_DELAY_PS(0) /* CFG_GPMC_A25_OEN */
- 0x1e8 A_DELAY_PS(0) G_DELAY_PS(0) /* CFG_GPMC_A25_OUT */
- 0x1f0 A_DELAY_PS(579) G_DELAY_PS(0) /* CFG_GPMC_A26_OEN */
- 0x1f4 A_DELAY_PS(0) G_DELAY_PS(0) /* CFG_GPMC_A26_OUT */
- 0x1fc A_DELAY_PS(435) G_DELAY_PS(0) /* CFG_GPMC_A27_OEN */
- 0x200 A_DELAY_PS(36) G_DELAY_PS(0) /* CFG_GPMC_A27_OUT */
- 0x364 A_DELAY_PS(759) G_DELAY_PS(0) /* CFG_GPMC_CS1_OEN */
- 0x368 A_DELAY_PS(72) G_DELAY_PS(0) /* CFG_GPMC_CS1_OUT */
+ 0x190 A_DELAY_PS(384) G_DELAY_PS(0) /* CFG_GPMC_A19_OEN */
+ 0x194 A_DELAY_PS(350) G_DELAY_PS(174) /* CFG_GPMC_A19_OUT */
+ 0x1a8 A_DELAY_PS(410) G_DELAY_PS(0) /* CFG_GPMC_A20_OEN */
+ 0x1ac A_DELAY_PS(335) G_DELAY_PS(0) /* CFG_GPMC_A20_OUT */
+ 0x1b4 A_DELAY_PS(468) G_DELAY_PS(0) /* CFG_GPMC_A21_OEN */
+ 0x1b8 A_DELAY_PS(339) G_DELAY_PS(0) /* CFG_GPMC_A21_OUT */
+ 0x1c0 A_DELAY_PS(676) G_DELAY_PS(0) /* CFG_GPMC_A22_OEN */
+ 0x1c4 A_DELAY_PS(219) G_DELAY_PS(0) /* CFG_GPMC_A22_OUT */
+ 0x1d0 A_DELAY_PS(1062) G_DELAY_PS(154) /* CFG_GPMC_A23_OUT */
+ 0x1d8 A_DELAY_PS(640) G_DELAY_PS(0) /* CFG_GPMC_A24_OEN */
+ 0x1dc A_DELAY_PS(150) G_DELAY_PS(0) /* CFG_GPMC_A24_OUT */
+ 0x1e4 A_DELAY_PS(356) G_DELAY_PS(0) /* CFG_GPMC_A25_OEN */
+ 0x1e8 A_DELAY_PS(150) G_DELAY_PS(0) /* CFG_GPMC_A25_OUT */
+ 0x1f0 A_DELAY_PS(579) G_DELAY_PS(0) /* CFG_GPMC_A26_OEN */
+ 0x1f4 A_DELAY_PS(200) G_DELAY_PS(0) /* CFG_GPMC_A26_OUT */
+ 0x1fc A_DELAY_PS(435) G_DELAY_PS(0) /* CFG_GPMC_A27_OEN */
+ 0x200 A_DELAY_PS(236) G_DELAY_PS(0) /* CFG_GPMC_A27_OUT */
+ 0x364 A_DELAY_PS(759) G_DELAY_PS(0) /* CFG_GPMC_CS1_OEN */
+ 0x368 A_DELAY_PS(372) G_DELAY_PS(0) /* CFG_GPMC_CS1_OUT */
>;
};

diff --git a/arch/arm/mach-imx/cpuidle-imx6sx.c b/arch/arm/mach-imx/cpuidle-imx6sx.c
index fd0053e47a15..3708a71f30e6 100644
--- a/arch/arm/mach-imx/cpuidle-imx6sx.c
+++ b/arch/arm/mach-imx/cpuidle-imx6sx.c
@@ -15,6 +15,7 @@

#include "common.h"
#include "cpuidle.h"
+#include "hardware.h"

static int imx6sx_idle_finish(unsigned long val)
{
@@ -110,7 +111,7 @@ int __init imx6sx_cpuidle_init(void)
* except for power up sw2iso which need to be
* larger than LDO ramp up time.
*/
- imx_gpc_set_arm_power_up_timing(0xf, 1);
+ imx_gpc_set_arm_power_up_timing(cpu_is_imx6sx() ? 0xf : 0x2, 1);
imx_gpc_set_arm_power_down_timing(1, 1);

return cpuidle_register(&imx6sx_cpuidle_driver, NULL);
diff --git a/arch/arm64/Makefile b/arch/arm64/Makefile
index 35649ee8ad56..c12ff63265a9 100644
--- a/arch/arm64/Makefile
+++ b/arch/arm64/Makefile
@@ -51,6 +51,7 @@ endif

KBUILD_CFLAGS += -mgeneral-regs-only $(lseinstr) $(brokengasinst)
KBUILD_CFLAGS += -fno-asynchronous-unwind-tables
+KBUILD_CFLAGS += -Wno-psabi
KBUILD_AFLAGS += $(lseinstr) $(brokengasinst)

KBUILD_CFLAGS += $(call cc-option,-mabi=lp64)
diff --git a/arch/arm64/include/uapi/asm/ptrace.h b/arch/arm64/include/uapi/asm/ptrace.h
index ad64d2c92ef5..5dff8eccd17d 100644
--- a/arch/arm64/include/uapi/asm/ptrace.h
+++ b/arch/arm64/include/uapi/asm/ptrace.h
@@ -64,8 +64,6 @@

#ifndef __ASSEMBLY__

-#include <linux/prctl.h>
-
/*
* User structures for general purpose, floating point and debug registers.
*/
@@ -112,10 +110,10 @@ struct user_sve_header {

/*
* Common SVE_PT_* flags:
- * These must be kept in sync with prctl interface in <linux/ptrace.h>
+ * These must be kept in sync with prctl interface in <linux/prctl.h>
*/
-#define SVE_PT_VL_INHERIT (PR_SVE_VL_INHERIT >> 16)
-#define SVE_PT_VL_ONEXEC (PR_SVE_SET_VL_ONEXEC >> 16)
+#define SVE_PT_VL_INHERIT ((1 << 17) /* PR_SVE_VL_INHERIT */ >> 16)
+#define SVE_PT_VL_ONEXEC ((1 << 18) /* PR_SVE_SET_VL_ONEXEC */ >> 16)


/*
diff --git a/arch/arm64/kernel/ssbd.c b/arch/arm64/kernel/ssbd.c
index 3432e5ef9f41..388f8fc13080 100644
--- a/arch/arm64/kernel/ssbd.c
+++ b/arch/arm64/kernel/ssbd.c
@@ -4,6 +4,7 @@
*/

#include <linux/errno.h>
+#include <linux/prctl.h>
#include <linux/sched.h>
#include <linux/thread_info.h>

diff --git a/arch/mips/kernel/uprobes.c b/arch/mips/kernel/uprobes.c
index 4aaff3b3175c..6dbe4eab0a0e 100644
--- a/arch/mips/kernel/uprobes.c
+++ b/arch/mips/kernel/uprobes.c
@@ -112,9 +112,6 @@ int arch_uprobe_pre_xol(struct arch_uprobe *aup, struct pt_regs *regs)
*/
aup->resume_epc = regs->cp0_epc + 4;
if (insn_has_delay_slot((union mips_instruction) aup->insn[0])) {
- unsigned long epc;
-
- epc = regs->cp0_epc;
__compute_return_epc_for_insn(regs,
(union mips_instruction) aup->insn[0]);
aup->resume_epc = regs->cp0_epc;
diff --git a/arch/parisc/math-emu/cnv_float.h b/arch/parisc/math-emu/cnv_float.h
index 933423fa5144..b0db61188a61 100644
--- a/arch/parisc/math-emu/cnv_float.h
+++ b/arch/parisc/math-emu/cnv_float.h
@@ -60,19 +60,19 @@
((exponent < (SGL_P - 1)) ? \
(Sall(sgl_value) << (SGL_EXP_LENGTH + 1 + exponent)) : FALSE)

-#define Int_isinexact_to_sgl(int_value) (int_value << 33 - SGL_EXP_LENGTH)
+#define Int_isinexact_to_sgl(int_value) ((int_value << 33 - SGL_EXP_LENGTH) != 0)

#define Sgl_roundnearest_from_int(int_value,sgl_value) \
if (int_value & 1<<(SGL_EXP_LENGTH - 2)) /* round bit */ \
- if ((int_value << 34 - SGL_EXP_LENGTH) || Slow(sgl_value)) \
+ if (((int_value << 34 - SGL_EXP_LENGTH) != 0) || Slow(sgl_value)) \
Sall(sgl_value)++

#define Dint_isinexact_to_sgl(dint_valueA,dint_valueB) \
- ((Dintp1(dint_valueA) << 33 - SGL_EXP_LENGTH) || Dintp2(dint_valueB))
+ (((Dintp1(dint_valueA) << 33 - SGL_EXP_LENGTH) != 0) || Dintp2(dint_valueB))

#define Sgl_roundnearest_from_dint(dint_valueA,dint_valueB,sgl_value) \
if (Dintp1(dint_valueA) & 1<<(SGL_EXP_LENGTH - 2)) \
- if ((Dintp1(dint_valueA) << 34 - SGL_EXP_LENGTH) || \
+ if (((Dintp1(dint_valueA) << 34 - SGL_EXP_LENGTH) != 0) || \
Dintp2(dint_valueB) || Slow(sgl_value)) Sall(sgl_value)++

#define Dint_isinexact_to_dbl(dint_value) \
diff --git a/arch/powerpc/include/asm/ppc-opcode.h b/arch/powerpc/include/asm/ppc-opcode.h
index 2b7135391231..d9d5391b2af6 100644
--- a/arch/powerpc/include/asm/ppc-opcode.h
+++ b/arch/powerpc/include/asm/ppc-opcode.h
@@ -336,6 +336,7 @@
#define PPC_INST_MULLI 0x1c000000
#define PPC_INST_DIVWU 0x7c000396
#define PPC_INST_DIVD 0x7c0003d2
+#define PPC_INST_DIVDU 0x7c000392
#define PPC_INST_RLWINM 0x54000000
#define PPC_INST_RLWIMI 0x50000000
#define PPC_INST_RLDICL 0x78000000
diff --git a/arch/powerpc/mm/mmu_context_book3s64.c b/arch/powerpc/mm/mmu_context_book3s64.c
index dbd8f762140b..68984d85ad6b 100644
--- a/arch/powerpc/mm/mmu_context_book3s64.c
+++ b/arch/powerpc/mm/mmu_context_book3s64.c
@@ -53,14 +53,48 @@ int hash__alloc_context_id(void)
}
EXPORT_SYMBOL_GPL(hash__alloc_context_id);

+static int realloc_context_ids(mm_context_t *ctx)
+{
+ int i, id;
+
+ /*
+ * id 0 (aka. ctx->id) is special, we always allocate a new one, even if
+ * there wasn't one allocated previously (which happens in the exec
+ * case where ctx is newly allocated).
+ *
+ * We have to be a bit careful here. We must keep the existing ids in
+ * the array, so that we can test if they're non-zero to decide if we
+ * need to allocate a new one. However in case of error we must free the
+ * ids we've allocated but *not* any of the existing ones (or risk a
+ * UAF). That's why we decrement i at the start of the error handling
+ * loop, to skip the id that we just tested but couldn't reallocate.
+ */
+ for (i = 0; i < ARRAY_SIZE(ctx->extended_id); i++) {
+ if (i == 0 || ctx->extended_id[i]) {
+ id = hash__alloc_context_id();
+ if (id < 0)
+ goto error;
+
+ ctx->extended_id[i] = id;
+ }
+ }
+
+ /* The caller expects us to return id */
+ return ctx->id;
+
+error:
+ for (i--; i >= 0; i--) {
+ if (ctx->extended_id[i])
+ ida_free(&mmu_context_ida, ctx->extended_id[i]);
+ }
+
+ return id;
+}
+
static int hash__init_new_context(struct mm_struct *mm)
{
int index;

- index = hash__alloc_context_id();
- if (index < 0)
- return index;
-
/*
* The old code would re-promote on fork, we don't do that when using
* slices as it could cause problem promoting slices that have been
@@ -78,6 +112,10 @@ static int hash__init_new_context(struct mm_struct *mm)
if (mm->context.id == 0)
slice_init_new_context_exec(mm);

+ index = realloc_context_ids(&mm->context);
+ if (index < 0)
+ return index;
+
subpage_prot_init_new_context(mm);

pkey_mm_init(mm);
diff --git a/arch/powerpc/net/bpf_jit.h b/arch/powerpc/net/bpf_jit.h
index 68dece206048..e5c1d30ee968 100644
--- a/arch/powerpc/net/bpf_jit.h
+++ b/arch/powerpc/net/bpf_jit.h
@@ -116,7 +116,7 @@
___PPC_RA(a) | IMM_L(i))
#define PPC_DIVWU(d, a, b) EMIT(PPC_INST_DIVWU | ___PPC_RT(d) | \
___PPC_RA(a) | ___PPC_RB(b))
-#define PPC_DIVD(d, a, b) EMIT(PPC_INST_DIVD | ___PPC_RT(d) | \
+#define PPC_DIVDU(d, a, b) EMIT(PPC_INST_DIVDU | ___PPC_RT(d) | \
___PPC_RA(a) | ___PPC_RB(b))
#define PPC_AND(d, a, b) EMIT(PPC_INST_AND | ___PPC_RA(d) | \
___PPC_RS(a) | ___PPC_RB(b))
diff --git a/arch/powerpc/net/bpf_jit_comp64.c b/arch/powerpc/net/bpf_jit_comp64.c
index 226eec62d125..279a51bf94d0 100644
--- a/arch/powerpc/net/bpf_jit_comp64.c
+++ b/arch/powerpc/net/bpf_jit_comp64.c
@@ -372,12 +372,12 @@ static int bpf_jit_build_body(struct bpf_prog *fp, u32 *image,
case BPF_ALU64 | BPF_DIV | BPF_X: /* dst /= src */
case BPF_ALU64 | BPF_MOD | BPF_X: /* dst %= src */
if (BPF_OP(code) == BPF_MOD) {
- PPC_DIVD(b2p[TMP_REG_1], dst_reg, src_reg);
+ PPC_DIVDU(b2p[TMP_REG_1], dst_reg, src_reg);
PPC_MULD(b2p[TMP_REG_1], src_reg,
b2p[TMP_REG_1]);
PPC_SUB(dst_reg, dst_reg, b2p[TMP_REG_1]);
} else
- PPC_DIVD(dst_reg, dst_reg, src_reg);
+ PPC_DIVDU(dst_reg, dst_reg, src_reg);
break;
case BPF_ALU | BPF_MOD | BPF_K: /* (u32) dst %= (u32) imm */
case BPF_ALU | BPF_DIV | BPF_K: /* (u32) dst /= (u32) imm */
@@ -405,7 +405,7 @@ static int bpf_jit_build_body(struct bpf_prog *fp, u32 *image,
break;
case BPF_ALU64:
if (BPF_OP(code) == BPF_MOD) {
- PPC_DIVD(b2p[TMP_REG_2], dst_reg,
+ PPC_DIVDU(b2p[TMP_REG_2], dst_reg,
b2p[TMP_REG_1]);
PPC_MULD(b2p[TMP_REG_1],
b2p[TMP_REG_1],
@@ -413,7 +413,7 @@ static int bpf_jit_build_body(struct bpf_prog *fp, u32 *image,
PPC_SUB(dst_reg, dst_reg,
b2p[TMP_REG_1]);
} else
- PPC_DIVD(dst_reg, dst_reg,
+ PPC_DIVDU(dst_reg, dst_reg,
b2p[TMP_REG_1]);
break;
}
diff --git a/arch/riscv/mm/fault.c b/arch/riscv/mm/fault.c
index 88401d5125bc..523dbfbac03d 100644
--- a/arch/riscv/mm/fault.c
+++ b/arch/riscv/mm/fault.c
@@ -29,6 +29,7 @@

#include <asm/pgalloc.h>
#include <asm/ptrace.h>
+#include <asm/tlbflush.h>

/*
* This routine handles page faults. It determines the address and the
@@ -281,6 +282,18 @@ asmlinkage void do_page_fault(struct pt_regs *regs)
pte_k = pte_offset_kernel(pmd_k, addr);
if (!pte_present(*pte_k))
goto no_context;
+
+ /*
+ * The kernel assumes that TLBs don't cache invalid
+ * entries, but in RISC-V, SFENCE.VMA specifies an
+ * ordering constraint, not a cache flush; it is
+ * necessary even after writing invalid entries.
+ * Relying on flush_tlb_fix_spurious_fault would
+ * suffice, but the extra traps reduce
+ * performance. So, eagerly SFENCE.VMA.
+ */
+ local_flush_tlb_page(addr);
+
return;
}
}
diff --git a/arch/s390/include/asm/ap.h b/arch/s390/include/asm/ap.h
index 8c00fd509c45..1a6a7092d942 100644
--- a/arch/s390/include/asm/ap.h
+++ b/arch/s390/include/asm/ap.h
@@ -221,16 +221,22 @@ static inline struct ap_queue_status ap_aqic(ap_qid_t qid,
void *ind)
{
register unsigned long reg0 asm ("0") = qid | (3UL << 24);
- register struct ap_qirq_ctrl reg1_in asm ("1") = qirqctrl;
- register struct ap_queue_status reg1_out asm ("1");
+ register union {
+ unsigned long value;
+ struct ap_qirq_ctrl qirqctrl;
+ struct ap_queue_status status;
+ } reg1 asm ("1");
register void *reg2 asm ("2") = ind;

+ reg1.qirqctrl = qirqctrl;
+
asm volatile(
".long 0xb2af0000" /* PQAP(AQIC) */
- : "=d" (reg1_out)
- : "d" (reg0), "d" (reg1_in), "d" (reg2)
+ : "+d" (reg1)
+ : "d" (reg0), "d" (reg2)
: "cc");
- return reg1_out;
+
+ return reg1.status;
}

/*
@@ -264,17 +270,21 @@ static inline struct ap_queue_status ap_qact(ap_qid_t qid, int ifbit,
{
register unsigned long reg0 asm ("0") = qid | (5UL << 24)
| ((ifbit & 0x01) << 22);
- register unsigned long reg1_in asm ("1") = apinfo->val;
- register struct ap_queue_status reg1_out asm ("1");
+ register union {
+ unsigned long value;
+ struct ap_queue_status status;
+ } reg1 asm ("1");
register unsigned long reg2 asm ("2");

+ reg1.value = apinfo->val;
+
asm volatile(
".long 0xb2af0000" /* PQAP(QACT) */
- : "+d" (reg1_in), "=d" (reg1_out), "=d" (reg2)
+ : "+d" (reg1), "=d" (reg2)
: "d" (reg0)
: "cc");
apinfo->val = reg2;
- return reg1_out;
+ return reg1.status;
}

/**
diff --git a/arch/s390/include/asm/jump_label.h b/arch/s390/include/asm/jump_label.h
index 40f651292aa7..9c7dc970e966 100644
--- a/arch/s390/include/asm/jump_label.h
+++ b/arch/s390/include/asm/jump_label.h
@@ -10,6 +10,12 @@
#define JUMP_LABEL_NOP_SIZE 6
#define JUMP_LABEL_NOP_OFFSET 2

+#if __GNUC__ < 9
+#define JUMP_LABEL_STATIC_KEY_CONSTRAINT "X"
+#else
+#define JUMP_LABEL_STATIC_KEY_CONSTRAINT "jdd"
+#endif
+
/*
* We use a brcl 0,2 instruction for jump labels at compile time so it
* can be easily distinguished from a hotpatch generated instruction.
@@ -19,9 +25,9 @@ static __always_inline bool arch_static_branch(struct static_key *key, bool bran
asm_volatile_goto("0: brcl 0,"__stringify(JUMP_LABEL_NOP_OFFSET)"\n"
".pushsection __jump_table, \"aw\"\n"
".balign 8\n"
- ".quad 0b, %l[label], %0\n"
+ ".quad 0b, %l[label], %0+%1\n"
".popsection\n"
- : : "X" (&((char *)key)[branch]) : : label);
+ : : JUMP_LABEL_STATIC_KEY_CONSTRAINT (key), "i" (branch) : : label);

return false;
label:
@@ -33,9 +39,9 @@ static __always_inline bool arch_static_branch_jump(struct static_key *key, bool
asm_volatile_goto("0: brcl 15, %l[label]\n"
".pushsection __jump_table, \"aw\"\n"
".balign 8\n"
- ".quad 0b, %l[label], %0\n"
+ ".quad 0b, %l[label], %0+%1\n"
".popsection\n"
- : : "X" (&((char *)key)[branch]) : : label);
+ : : JUMP_LABEL_STATIC_KEY_CONSTRAINT (key), "i" (branch) : : label);

return false;
label:
diff --git a/arch/sparc/kernel/mdesc.c b/arch/sparc/kernel/mdesc.c
index 39a2503fa3e1..51028abe5e90 100644
--- a/arch/sparc/kernel/mdesc.c
+++ b/arch/sparc/kernel/mdesc.c
@@ -357,6 +357,8 @@ static int get_vdev_port_node_info(struct mdesc_handle *md, u64 node,

node_info->vdev_port.id = *idp;
node_info->vdev_port.name = kstrdup_const(name, GFP_KERNEL);
+ if (!node_info->vdev_port.name)
+ return -1;
node_info->vdev_port.parent_cfg_hdl = *parent_cfg_hdlp;

return 0;
diff --git a/arch/sparc/kernel/perf_event.c b/arch/sparc/kernel/perf_event.c
index 67b3e6b3ce5d..1ad5911f62b4 100644
--- a/arch/sparc/kernel/perf_event.c
+++ b/arch/sparc/kernel/perf_event.c
@@ -891,6 +891,10 @@ static int sparc_perf_event_set_period(struct perf_event *event,
s64 period = hwc->sample_period;
int ret = 0;

+ /* The period may have been changed by PERF_EVENT_IOC_PERIOD */
+ if (unlikely(period != hwc->last_period))
+ left = period - (hwc->last_period - left);
+
if (unlikely(left <= -period)) {
left = period;
local64_set(&hwc->period_left, left);
diff --git a/arch/x86/kernel/cpu/intel_rdt_rdtgroup.c b/arch/x86/kernel/cpu/intel_rdt_rdtgroup.c
index 643670fb8943..274d220d0a83 100644
--- a/arch/x86/kernel/cpu/intel_rdt_rdtgroup.c
+++ b/arch/x86/kernel/cpu/intel_rdt_rdtgroup.c
@@ -2379,7 +2379,7 @@ static int rdtgroup_init_alloc(struct rdtgroup *rdtgrp)
if (closid_allocated(i) && i != closid) {
mode = rdtgroup_mode_by_closid(i);
if (mode == RDT_MODE_PSEUDO_LOCKSETUP)
- break;
+ continue;
used_b |= *ctrl;
if (mode == RDT_MODE_SHAREABLE)
d->new_ctrl |= *ctrl;
diff --git a/arch/xtensa/kernel/setup.c b/arch/xtensa/kernel/setup.c
index 351283b60df6..a285fbd0fd9b 100644
--- a/arch/xtensa/kernel/setup.c
+++ b/arch/xtensa/kernel/setup.c
@@ -310,7 +310,8 @@ extern char _SecondaryResetVector_text_start;
extern char _SecondaryResetVector_text_end;
#endif

-static inline int mem_reserve(unsigned long start, unsigned long end)
+static inline int __init_memblock mem_reserve(unsigned long start,
+ unsigned long end)
{
return memblock_reserve(start, end - start);
}
diff --git a/drivers/dma/dw-axi-dmac/dw-axi-dmac-platform.c b/drivers/dma/dw-axi-dmac/dw-axi-dmac-platform.c
index c4eb55e3011c..c05ef7f1d7b6 100644
--- a/drivers/dma/dw-axi-dmac/dw-axi-dmac-platform.c
+++ b/drivers/dma/dw-axi-dmac/dw-axi-dmac-platform.c
@@ -512,7 +512,8 @@ dma_chan_prep_dma_memcpy(struct dma_chan *dchan, dma_addr_t dst_adr,
return vchan_tx_prep(&chan->vc, &first->vd, flags);

err_desc_get:
- axi_desc_put(first);
+ if (first)
+ axi_desc_put(first);
return NULL;
}

diff --git a/drivers/dma/sprd-dma.c b/drivers/dma/sprd-dma.c
index 55df0d41355b..1ed1c7efa288 100644
--- a/drivers/dma/sprd-dma.c
+++ b/drivers/dma/sprd-dma.c
@@ -663,7 +663,7 @@ static int sprd_dma_fill_desc(struct dma_chan *chan,
temp |= slave_cfg->src_maxburst & SPRD_DMA_FRG_LEN_MASK;
hw->frg_len = temp;

- hw->blk_len = len & SPRD_DMA_BLK_LEN_MASK;
+ hw->blk_len = slave_cfg->src_maxburst & SPRD_DMA_BLK_LEN_MASK;
hw->trsc_len = len & SPRD_DMA_TRSC_LEN_MASK;

temp = (dst_step & SPRD_DMA_TRSF_STEP_MASK) << SPRD_DMA_DEST_TRSF_STEP_OFFSET;
diff --git a/drivers/fpga/dfl-afu-dma-region.c b/drivers/fpga/dfl-afu-dma-region.c
index 0e81d33af856..c9a613dc9eb7 100644
--- a/drivers/fpga/dfl-afu-dma-region.c
+++ b/drivers/fpga/dfl-afu-dma-region.c
@@ -399,7 +399,7 @@ int afu_dma_map_region(struct dfl_feature_platform_data *pdata,
region->pages[0], 0,
region->length,
DMA_BIDIRECTIONAL);
- if (dma_mapping_error(&pdata->dev->dev, region->iova)) {
+ if (dma_mapping_error(dfl_fpga_pdata_to_parent(pdata), region->iova)) {
dev_err(&pdata->dev->dev, "failed to map for dma\n");
ret = -EFAULT;
goto unpin_pages;
diff --git a/drivers/fpga/dfl.c b/drivers/fpga/dfl.c
index a9b521bccb06..ab361ec78df4 100644
--- a/drivers/fpga/dfl.c
+++ b/drivers/fpga/dfl.c
@@ -40,6 +40,13 @@ enum dfl_fpga_devt_type {
DFL_FPGA_DEVT_MAX,
};

+static struct lock_class_key dfl_pdata_keys[DFL_ID_MAX];
+
+static const char *dfl_pdata_key_strings[DFL_ID_MAX] = {
+ "dfl-fme-pdata",
+ "dfl-port-pdata",
+};
+
/**
* dfl_dev_info - dfl feature device information.
* @name: name string of the feature platform device.
@@ -443,11 +450,16 @@ static int build_info_commit_dev(struct build_feature_devs_info *binfo)
struct platform_device *fdev = binfo->feature_dev;
struct dfl_feature_platform_data *pdata;
struct dfl_feature_info *finfo, *p;
+ enum dfl_id_type type;
int ret, index = 0;

if (!fdev)
return 0;

+ type = feature_dev_id_type(fdev);
+ if (WARN_ON_ONCE(type >= DFL_ID_MAX))
+ return -EINVAL;
+
/*
* we do not need to care for the memory which is associated with
* the platform device. After calling platform_device_unregister(),
@@ -463,6 +475,8 @@ static int build_info_commit_dev(struct build_feature_devs_info *binfo)
pdata->num = binfo->feature_num;
pdata->dfl_cdev = binfo->cdev;
mutex_init(&pdata->lock);
+ lockdep_set_class_and_name(&pdata->lock, &dfl_pdata_keys[type],
+ dfl_pdata_key_strings[type]);

/*
* the count should be initialized to 0 to make sure
@@ -497,7 +511,7 @@ static int build_info_commit_dev(struct build_feature_devs_info *binfo)

ret = platform_device_add(binfo->feature_dev);
if (!ret) {
- if (feature_dev_id_type(binfo->feature_dev) == PORT_ID)
+ if (type == PORT_ID)
dfl_fpga_cdev_add_port_dev(binfo->cdev,
binfo->feature_dev);
else
diff --git a/drivers/gpu/drm/arm/hdlcd_crtc.c b/drivers/gpu/drm/arm/hdlcd_crtc.c
index e4d67b70244d..e69d996eabad 100644
--- a/drivers/gpu/drm/arm/hdlcd_crtc.c
+++ b/drivers/gpu/drm/arm/hdlcd_crtc.c
@@ -186,20 +186,20 @@ static void hdlcd_crtc_atomic_disable(struct drm_crtc *crtc,
clk_disable_unprepare(hdlcd->clk);
}

-static int hdlcd_crtc_atomic_check(struct drm_crtc *crtc,
- struct drm_crtc_state *state)
+static enum drm_mode_status hdlcd_crtc_mode_valid(struct drm_crtc *crtc,
+ const struct drm_display_mode *mode)
{
struct hdlcd_drm_private *hdlcd = crtc_to_hdlcd_priv(crtc);
- struct drm_display_mode *mode = &state->adjusted_mode;
long rate, clk_rate = mode->clock * 1000;

rate = clk_round_rate(hdlcd->clk, clk_rate);
- if (rate != clk_rate) {
+ /* 0.1% seems a close enough tolerance for the TDA19988 on Juno */
+ if (abs(rate - clk_rate) * 1000 > clk_rate) {
/* clock required by mode not supported by hardware */
- return -EINVAL;
+ return MODE_NOCLOCK;
}

- return 0;
+ return MODE_OK;
}

static void hdlcd_crtc_atomic_begin(struct drm_crtc *crtc,
@@ -220,7 +220,7 @@ static void hdlcd_crtc_atomic_begin(struct drm_crtc *crtc,
}

static const struct drm_crtc_helper_funcs hdlcd_crtc_helper_funcs = {
- .atomic_check = hdlcd_crtc_atomic_check,
+ .mode_valid = hdlcd_crtc_mode_valid,
.atomic_begin = hdlcd_crtc_atomic_begin,
.atomic_enable = hdlcd_crtc_atomic_enable,
.atomic_disable = hdlcd_crtc_atomic_disable,
diff --git a/drivers/gpu/drm/arm/malidp_drv.c b/drivers/gpu/drm/arm/malidp_drv.c
index 94d6dabec2dc..1ab511e33243 100644
--- a/drivers/gpu/drm/arm/malidp_drv.c
+++ b/drivers/gpu/drm/arm/malidp_drv.c
@@ -190,6 +190,7 @@ static void malidp_atomic_commit_hw_done(struct drm_atomic_state *state)
{
struct drm_device *drm = state->dev;
struct malidp_drm *malidp = drm->dev_private;
+ int loop = 5;

malidp->event = malidp->crtc.state->event;
malidp->crtc.state->event = NULL;
@@ -204,8 +205,18 @@ static void malidp_atomic_commit_hw_done(struct drm_atomic_state *state)
drm_crtc_vblank_get(&malidp->crtc);

/* only set config_valid if the CRTC is enabled */
- if (malidp_set_and_wait_config_valid(drm) < 0)
+ if (malidp_set_and_wait_config_valid(drm) < 0) {
+ /*
+ * make a loop around the second CVAL setting and
+ * try 5 times before giving up.
+ */
+ while (loop--) {
+ if (!malidp_set_and_wait_config_valid(drm))
+ break;
+ }
DRM_DEBUG_DRIVER("timed out waiting for updated configuration\n");
+ }
+
} else if (malidp->event) {
/* CRTC inactive means vblank IRQ is disabled, send event directly */
spin_lock_irq(&drm->event_lock);
diff --git a/drivers/gpu/drm/vmwgfx/vmwgfx_msg.c b/drivers/gpu/drm/vmwgfx/vmwgfx_msg.c
index 8b9270f31409..e4e09d47c5c0 100644
--- a/drivers/gpu/drm/vmwgfx/vmwgfx_msg.c
+++ b/drivers/gpu/drm/vmwgfx/vmwgfx_msg.c
@@ -136,6 +136,114 @@ static int vmw_close_channel(struct rpc_channel *channel)
return 0;
}

+/**
+ * vmw_port_hb_out - Send the message payload either through the
+ * high-bandwidth port if available, or through the backdoor otherwise.
+ * @channel: The rpc channel.
+ * @msg: NULL-terminated message.
+ * @hb: Whether the high-bandwidth port is available.
+ *
+ * Return: The port status.
+ */
+static unsigned long vmw_port_hb_out(struct rpc_channel *channel,
+ const char *msg, bool hb)
+{
+ unsigned long si, di, eax, ebx, ecx, edx;
+ unsigned long msg_len = strlen(msg);
+
+ if (hb) {
+ unsigned long bp = channel->cookie_high;
+
+ si = (uintptr_t) msg;
+ di = channel->cookie_low;
+
+ VMW_PORT_HB_OUT(
+ (MESSAGE_STATUS_SUCCESS << 16) | VMW_PORT_CMD_HB_MSG,
+ msg_len, si, di,
+ VMW_HYPERVISOR_HB_PORT | (channel->channel_id << 16),
+ VMW_HYPERVISOR_MAGIC, bp,
+ eax, ebx, ecx, edx, si, di);
+
+ return ebx;
+ }
+
+ /* HB port not available. Send the message 4 bytes at a time. */
+ ecx = MESSAGE_STATUS_SUCCESS << 16;
+ while (msg_len && (HIGH_WORD(ecx) & MESSAGE_STATUS_SUCCESS)) {
+ unsigned int bytes = min_t(size_t, msg_len, 4);
+ unsigned long word = 0;
+
+ memcpy(&word, msg, bytes);
+ msg_len -= bytes;
+ msg += bytes;
+ si = channel->cookie_high;
+ di = channel->cookie_low;
+
+ VMW_PORT(VMW_PORT_CMD_MSG | (MSG_TYPE_SENDPAYLOAD << 16),
+ word, si, di,
+ VMW_HYPERVISOR_PORT | (channel->channel_id << 16),
+ VMW_HYPERVISOR_MAGIC,
+ eax, ebx, ecx, edx, si, di);
+ }
+
+ return ecx;
+}
+
+/**
+ * vmw_port_hb_in - Receive the message payload either through the
+ * high-bandwidth port if available, or through the backdoor otherwise.
+ * @channel: The rpc channel.
+ * @reply: Pointer to buffer holding reply.
+ * @reply_len: Length of the reply.
+ * @hb: Whether the high-bandwidth port is available.
+ *
+ * Return: The port status.
+ */
+static unsigned long vmw_port_hb_in(struct rpc_channel *channel, char *reply,
+ unsigned long reply_len, bool hb)
+{
+ unsigned long si, di, eax, ebx, ecx, edx;
+
+ if (hb) {
+ unsigned long bp = channel->cookie_low;
+
+ si = channel->cookie_high;
+ di = (uintptr_t) reply;
+
+ VMW_PORT_HB_IN(
+ (MESSAGE_STATUS_SUCCESS << 16) | VMW_PORT_CMD_HB_MSG,
+ reply_len, si, di,
+ VMW_HYPERVISOR_HB_PORT | (channel->channel_id << 16),
+ VMW_HYPERVISOR_MAGIC, bp,
+ eax, ebx, ecx, edx, si, di);
+
+ return ebx;
+ }
+
+ /* HB port not available. Retrieve the message 4 bytes at a time. */
+ ecx = MESSAGE_STATUS_SUCCESS << 16;
+ while (reply_len) {
+ unsigned int bytes = min_t(unsigned long, reply_len, 4);
+
+ si = channel->cookie_high;
+ di = channel->cookie_low;
+
+ VMW_PORT(VMW_PORT_CMD_MSG | (MSG_TYPE_RECVPAYLOAD << 16),
+ MESSAGE_STATUS_SUCCESS, si, di,
+ VMW_HYPERVISOR_PORT | (channel->channel_id << 16),
+ VMW_HYPERVISOR_MAGIC,
+ eax, ebx, ecx, edx, si, di);
+
+ if ((HIGH_WORD(ecx) & MESSAGE_STATUS_SUCCESS) == 0)
+ break;
+
+ memcpy(reply, &ebx, bytes);
+ reply_len -= bytes;
+ reply += bytes;
+ }
+
+ return ecx;
+}


/**
@@ -148,11 +256,10 @@ static int vmw_close_channel(struct rpc_channel *channel)
*/
static int vmw_send_msg(struct rpc_channel *channel, const char *msg)
{
- unsigned long eax, ebx, ecx, edx, si, di, bp;
+ unsigned long eax, ebx, ecx, edx, si, di;
size_t msg_len = strlen(msg);
int retries = 0;

-
while (retries < RETRIES) {
retries++;

@@ -166,23 +273,14 @@ static int vmw_send_msg(struct rpc_channel *channel, const char *msg)
VMW_HYPERVISOR_MAGIC,
eax, ebx, ecx, edx, si, di);

- if ((HIGH_WORD(ecx) & MESSAGE_STATUS_SUCCESS) == 0 ||
- (HIGH_WORD(ecx) & MESSAGE_STATUS_HB) == 0) {
- /* Expected success + high-bandwidth. Give up. */
+ if ((HIGH_WORD(ecx) & MESSAGE_STATUS_SUCCESS) == 0) {
+ /* Expected success. Give up. */
return -EINVAL;
}

/* Send msg */
- si = (uintptr_t) msg;
- di = channel->cookie_low;
- bp = channel->cookie_high;
-
- VMW_PORT_HB_OUT(
- (MESSAGE_STATUS_SUCCESS << 16) | VMW_PORT_CMD_HB_MSG,
- msg_len, si, di,
- VMW_HYPERVISOR_HB_PORT | (channel->channel_id << 16),
- VMW_HYPERVISOR_MAGIC, bp,
- eax, ebx, ecx, edx, si, di);
+ ebx = vmw_port_hb_out(channel, msg,
+ !!(HIGH_WORD(ecx) & MESSAGE_STATUS_HB));

if ((HIGH_WORD(ebx) & MESSAGE_STATUS_SUCCESS) != 0) {
return 0;
@@ -211,7 +309,7 @@ STACK_FRAME_NON_STANDARD(vmw_send_msg);
static int vmw_recv_msg(struct rpc_channel *channel, void **msg,
size_t *msg_len)
{
- unsigned long eax, ebx, ecx, edx, si, di, bp;
+ unsigned long eax, ebx, ecx, edx, si, di;
char *reply;
size_t reply_len;
int retries = 0;
@@ -233,8 +331,7 @@ static int vmw_recv_msg(struct rpc_channel *channel, void **msg,
VMW_HYPERVISOR_MAGIC,
eax, ebx, ecx, edx, si, di);

- if ((HIGH_WORD(ecx) & MESSAGE_STATUS_SUCCESS) == 0 ||
- (HIGH_WORD(ecx) & MESSAGE_STATUS_HB) == 0) {
+ if ((HIGH_WORD(ecx) & MESSAGE_STATUS_SUCCESS) == 0) {
DRM_ERROR("Failed to get reply size for host message.\n");
return -EINVAL;
}
@@ -252,17 +349,8 @@ static int vmw_recv_msg(struct rpc_channel *channel, void **msg,


/* Receive buffer */
- si = channel->cookie_high;
- di = (uintptr_t) reply;
- bp = channel->cookie_low;
-
- VMW_PORT_HB_IN(
- (MESSAGE_STATUS_SUCCESS << 16) | VMW_PORT_CMD_HB_MSG,
- reply_len, si, di,
- VMW_HYPERVISOR_HB_PORT | (channel->channel_id << 16),
- VMW_HYPERVISOR_MAGIC, bp,
- eax, ebx, ecx, edx, si, di);
-
+ ebx = vmw_port_hb_in(channel, reply, reply_len,
+ !!(HIGH_WORD(ecx) & MESSAGE_STATUS_HB));
if ((HIGH_WORD(ebx) & MESSAGE_STATUS_SUCCESS) == 0) {
kfree(reply);

diff --git a/drivers/hwmon/hwmon.c b/drivers/hwmon/hwmon.c
index fcdbac4a56e3..6b3559f58b67 100644
--- a/drivers/hwmon/hwmon.c
+++ b/drivers/hwmon/hwmon.c
@@ -619,7 +619,7 @@ __hwmon_device_register(struct device *dev, const char *name, void *drvdata,
if (err)
goto free_hwmon;

- if (dev && chip && chip->ops->read &&
+ if (dev && dev->of_node && chip && chip->ops->read &&
chip->info[0]->type == hwmon_chip &&
(chip->info[0]->config[0] & HWMON_C_REGISTER_TZ)) {
const struct hwmon_channel_info **info = chip->info;
diff --git a/drivers/hwmon/pmbus/pmbus_core.c b/drivers/hwmon/pmbus/pmbus_core.c
index 2e2b5851139c..cd24b375df1e 100644
--- a/drivers/hwmon/pmbus/pmbus_core.c
+++ b/drivers/hwmon/pmbus/pmbus_core.c
@@ -1230,7 +1230,8 @@ static int pmbus_add_sensor_attrs_one(struct i2c_client *client,
const struct pmbus_driver_info *info,
const char *name,
int index, int page,
- const struct pmbus_sensor_attr *attr)
+ const struct pmbus_sensor_attr *attr,
+ bool paged)
{
struct pmbus_sensor *base;
bool upper = !!(attr->gbit & 0xff00); /* need to check STATUS_WORD */
@@ -1238,7 +1239,7 @@ static int pmbus_add_sensor_attrs_one(struct i2c_client *client,

if (attr->label) {
ret = pmbus_add_label(data, name, index, attr->label,
- attr->paged ? page + 1 : 0);
+ paged ? page + 1 : 0);
if (ret)
return ret;
}
@@ -1271,6 +1272,30 @@ static int pmbus_add_sensor_attrs_one(struct i2c_client *client,
return 0;
}

+static bool pmbus_sensor_is_paged(const struct pmbus_driver_info *info,
+ const struct pmbus_sensor_attr *attr)
+{
+ int p;
+
+ if (attr->paged)
+ return true;
+
+ /*
+ * Some attributes may be present on more than one page despite
+ * not being marked with the paged attribute. If that is the case,
+ * then treat the sensor as being paged and add the page suffix to the
+ * attribute name.
+ * We don't just add the paged attribute to all such attributes, in
+ * order to maintain the un-suffixed labels in the case where the
+ * attribute is only on page 0.
+ */
+ for (p = 1; p < info->pages; p++) {
+ if (info->func[p] & attr->func)
+ return true;
+ }
+ return false;
+}
+
static int pmbus_add_sensor_attrs(struct i2c_client *client,
struct pmbus_data *data,
const char *name,
@@ -1284,14 +1309,15 @@ static int pmbus_add_sensor_attrs(struct i2c_client *client,
index = 1;
for (i = 0; i < nattrs; i++) {
int page, pages;
+ bool paged = pmbus_sensor_is_paged(info, attrs);

- pages = attrs->paged ? info->pages : 1;
+ pages = paged ? info->pages : 1;
for (page = 0; page < pages; page++) {
if (!(info->func[page] & attrs->func))
continue;
ret = pmbus_add_sensor_attrs_one(client, data, info,
name, index, page,
- attrs);
+ attrs, paged);
if (ret)
return ret;
index++;
diff --git a/drivers/iio/temperature/mlx90632.c b/drivers/iio/temperature/mlx90632.c
index 9851311aa3fd..2d54d9cac61d 100644
--- a/drivers/iio/temperature/mlx90632.c
+++ b/drivers/iio/temperature/mlx90632.c
@@ -81,6 +81,8 @@
/* Magic constants */
#define MLX90632_ID_MEDICAL 0x0105 /* EEPROM DSPv5 Medical device id */
#define MLX90632_ID_CONSUMER 0x0205 /* EEPROM DSPv5 Consumer device id */
+#define MLX90632_DSP_VERSION 5 /* DSP version */
+#define MLX90632_DSP_MASK GENMASK(7, 0) /* DSP version in EE_VERSION */
#define MLX90632_RESET_CMD 0x0006 /* Reset sensor (address or global) */
#define MLX90632_REF_12 12LL /**< ResCtrlRef value of Ch 1 or Ch 2 */
#define MLX90632_REF_3 12LL /**< ResCtrlRef value of Channel 3 */
@@ -666,10 +668,13 @@ static int mlx90632_probe(struct i2c_client *client,
} else if (read == MLX90632_ID_CONSUMER) {
dev_dbg(&client->dev,
"Detected Consumer EEPROM calibration %x\n", read);
+ } else if ((read & MLX90632_DSP_MASK) == MLX90632_DSP_VERSION) {
+ dev_dbg(&client->dev,
+ "Detected Unknown EEPROM calibration %x\n", read);
} else {
dev_err(&client->dev,
- "EEPROM version mismatch %x (expected %x or %x)\n",
- read, MLX90632_ID_CONSUMER, MLX90632_ID_MEDICAL);
+ "Wrong DSP version %x (expected %x)\n",
+ read, MLX90632_DSP_VERSION);
return -EPROTONOSUPPORT;
}

diff --git a/drivers/infiniband/hw/hfi1/chip.c b/drivers/infiniband/hw/hfi1/chip.c
index b12c8ff8ed66..d8eb4dc04d69 100644
--- a/drivers/infiniband/hw/hfi1/chip.c
+++ b/drivers/infiniband/hw/hfi1/chip.c
@@ -9849,6 +9849,7 @@ void hfi1_quiet_serdes(struct hfi1_pportdata *ppd)

/* disable the port */
clear_rcvctrl(dd, RCV_CTRL_RCV_PORT_ENABLE_SMASK);
+ cancel_work_sync(&ppd->freeze_work);
}

static inline int init_cpu_counters(struct hfi1_devdata *dd)
diff --git a/drivers/infiniband/hw/hfi1/fault.c b/drivers/infiniband/hw/hfi1/fault.c
index e2290f32c8d9..7eaff4dcbfd7 100644
--- a/drivers/infiniband/hw/hfi1/fault.c
+++ b/drivers/infiniband/hw/hfi1/fault.c
@@ -153,6 +153,7 @@ static ssize_t fault_opcodes_write(struct file *file, const char __user *buf,
char *dash;
unsigned long range_start, range_end, i;
bool remove = false;
+ unsigned long bound = 1U << BITS_PER_BYTE;

end = strchr(ptr, ',');
if (end)
@@ -178,6 +179,10 @@ static ssize_t fault_opcodes_write(struct file *file, const char __user *buf,
BITS_PER_BYTE);
break;
}
+ /* Check the inputs */
+ if (range_start >= bound || range_end >= bound)
+ break;
+
for (i = range_start; i <= range_end; i++) {
if (remove)
clear_bit(i, fault->opcodes);
diff --git a/drivers/infiniband/hw/hfi1/user_exp_rcv.c b/drivers/infiniband/hw/hfi1/user_exp_rcv.c
index dbe7d14a5c76..4e986ca4dd35 100644
--- a/drivers/infiniband/hw/hfi1/user_exp_rcv.c
+++ b/drivers/infiniband/hw/hfi1/user_exp_rcv.c
@@ -324,6 +324,9 @@ int hfi1_user_exp_rcv_setup(struct hfi1_filedata *fd,
u32 *tidlist = NULL;
struct tid_user_buf *tidbuf;

+ if (!PAGE_ALIGNED(tinfo->vaddr))
+ return -EINVAL;
+
tidbuf = kzalloc(sizeof(*tidbuf), GFP_KERNEL);
if (!tidbuf)
return -ENOMEM;
diff --git a/drivers/infiniband/hw/hfi1/verbs.c b/drivers/infiniband/hw/hfi1/verbs.c
index 48692adbe811..27d9c4cefdc7 100644
--- a/drivers/infiniband/hw/hfi1/verbs.c
+++ b/drivers/infiniband/hw/hfi1/verbs.c
@@ -1418,8 +1418,6 @@ static void hfi1_fill_device_attr(struct hfi1_devdata *dd)
rdi->dparms.props.max_cq = hfi1_max_cqs;
rdi->dparms.props.max_ah = hfi1_max_ahs;
rdi->dparms.props.max_cqe = hfi1_max_cqes;
- rdi->dparms.props.max_mr = rdi->lkey_table.max;
- rdi->dparms.props.max_fmr = rdi->lkey_table.max;
rdi->dparms.props.max_map_per_fmr = 32767;
rdi->dparms.props.max_pd = hfi1_max_pds;
rdi->dparms.props.max_qp_rd_atom = HFI1_MAX_RDMA_ATOMIC;
diff --git a/drivers/infiniband/hw/hfi1/verbs_txreq.c b/drivers/infiniband/hw/hfi1/verbs_txreq.c
index c4ab2d5b4502..8f766dd3f61c 100644
--- a/drivers/infiniband/hw/hfi1/verbs_txreq.c
+++ b/drivers/infiniband/hw/hfi1/verbs_txreq.c
@@ -100,7 +100,7 @@ struct verbs_txreq *__get_txreq(struct hfi1_ibdev *dev,
if (ib_rvt_state_ops[qp->state] & RVT_PROCESS_RECV_OK) {
struct hfi1_qp_priv *priv;

- tx = kmem_cache_alloc(dev->verbs_txreq_cache, GFP_ATOMIC);
+ tx = kmem_cache_alloc(dev->verbs_txreq_cache, VERBS_TXREQ_GFP);
if (tx)
goto out;
priv = qp->priv;
diff --git a/drivers/infiniband/hw/hfi1/verbs_txreq.h b/drivers/infiniband/hw/hfi1/verbs_txreq.h
index 1c19bbc764b2..b1a78985b4ec 100644
--- a/drivers/infiniband/hw/hfi1/verbs_txreq.h
+++ b/drivers/infiniband/hw/hfi1/verbs_txreq.h
@@ -72,6 +72,7 @@ struct hfi1_ibdev;
struct verbs_txreq *__get_txreq(struct hfi1_ibdev *dev,
struct rvt_qp *qp);

+#define VERBS_TXREQ_GFP (GFP_ATOMIC | __GFP_NOWARN)
static inline struct verbs_txreq *get_txreq(struct hfi1_ibdev *dev,
struct rvt_qp *qp)
__must_hold(&qp->slock)
@@ -79,7 +80,7 @@ static inline struct verbs_txreq *get_txreq(struct hfi1_ibdev *dev,
struct verbs_txreq *tx;
struct hfi1_qp_priv *priv = qp->priv;

- tx = kmem_cache_alloc(dev->verbs_txreq_cache, GFP_ATOMIC);
+ tx = kmem_cache_alloc(dev->verbs_txreq_cache, VERBS_TXREQ_GFP);
if (unlikely(!tx)) {
/* call slow path to get the lock */
tx = __get_txreq(dev, qp);
diff --git a/drivers/infiniband/hw/qib/qib_verbs.c b/drivers/infiniband/hw/qib/qib_verbs.c
index 41babbc0db58..803c3544c75b 100644
--- a/drivers/infiniband/hw/qib/qib_verbs.c
+++ b/drivers/infiniband/hw/qib/qib_verbs.c
@@ -1495,8 +1495,6 @@ static void qib_fill_device_attr(struct qib_devdata *dd)
rdi->dparms.props.max_cq = ib_qib_max_cqs;
rdi->dparms.props.max_cqe = ib_qib_max_cqes;
rdi->dparms.props.max_ah = ib_qib_max_ahs;
- rdi->dparms.props.max_mr = rdi->lkey_table.max;
- rdi->dparms.props.max_fmr = rdi->lkey_table.max;
rdi->dparms.props.max_map_per_fmr = 32767;
rdi->dparms.props.max_qp_rd_atom = QIB_MAX_RDMA_ATOMIC;
rdi->dparms.props.max_qp_init_rd_atom = 255;
diff --git a/drivers/infiniband/sw/rdmavt/mr.c b/drivers/infiniband/sw/rdmavt/mr.c
index 5819c9d6ffdc..39d101df229d 100644
--- a/drivers/infiniband/sw/rdmavt/mr.c
+++ b/drivers/infiniband/sw/rdmavt/mr.c
@@ -96,6 +96,8 @@ int rvt_driver_mr_init(struct rvt_dev_info *rdi)
for (i = 0; i < rdi->lkey_table.max; i++)
RCU_INIT_POINTER(rdi->lkey_table.table[i], NULL);

+ rdi->dparms.props.max_mr = rdi->lkey_table.max;
+ rdi->dparms.props.max_fmr = rdi->lkey_table.max;
return 0;
}

diff --git a/drivers/infiniband/sw/rdmavt/qp.c b/drivers/infiniband/sw/rdmavt/qp.c
index 5ce403c6cddb..7d03680afd91 100644
--- a/drivers/infiniband/sw/rdmavt/qp.c
+++ b/drivers/infiniband/sw/rdmavt/qp.c
@@ -412,7 +412,8 @@ static int alloc_qpn(struct rvt_dev_info *rdi, struct rvt_qpn_table *qpt,
offset = qpt->incr | ((offset & 1) ^ 1);
}
/* there can be no set bits in low-order QoS bits */
- WARN_ON(offset & (BIT(rdi->dparms.qos_shift) - 1));
+ WARN_ON(rdi->dparms.qos_shift > 1 &&
+ offset & ((BIT(rdi->dparms.qos_shift - 1) - 1) << 1));
qpn = mk_qpn(qpt, map, offset);
}

diff --git a/drivers/input/misc/uinput.c b/drivers/input/misc/uinput.c
index 26ec603fe220..83d1499fe021 100644
--- a/drivers/input/misc/uinput.c
+++ b/drivers/input/misc/uinput.c
@@ -1051,13 +1051,31 @@ static long uinput_ioctl(struct file *file, unsigned int cmd, unsigned long arg)

#ifdef CONFIG_COMPAT

-#define UI_SET_PHYS_COMPAT _IOW(UINPUT_IOCTL_BASE, 108, compat_uptr_t)
+/*
+ * These IOCTLs change their size and thus their numbers between
+ * 32 and 64 bits.
+ */
+#define UI_SET_PHYS_COMPAT \
+ _IOW(UINPUT_IOCTL_BASE, 108, compat_uptr_t)
+#define UI_BEGIN_FF_UPLOAD_COMPAT \
+ _IOWR(UINPUT_IOCTL_BASE, 200, struct uinput_ff_upload_compat)
+#define UI_END_FF_UPLOAD_COMPAT \
+ _IOW(UINPUT_IOCTL_BASE, 201, struct uinput_ff_upload_compat)

static long uinput_compat_ioctl(struct file *file,
unsigned int cmd, unsigned long arg)
{
- if (cmd == UI_SET_PHYS_COMPAT)
+ switch (cmd) {
+ case UI_SET_PHYS_COMPAT:
cmd = UI_SET_PHYS;
+ break;
+ case UI_BEGIN_FF_UPLOAD_COMPAT:
+ cmd = UI_BEGIN_FF_UPLOAD;
+ break;
+ case UI_END_FF_UPLOAD_COMPAT:
+ cmd = UI_END_FF_UPLOAD;
+ break;
+ }

return uinput_ioctl_handler(file, cmd, arg, compat_ptr(arg));
}
diff --git a/drivers/input/mouse/synaptics.c b/drivers/input/mouse/synaptics.c
index b6da0c1267e3..8e6077d8e434 100644
--- a/drivers/input/mouse/synaptics.c
+++ b/drivers/input/mouse/synaptics.c
@@ -179,6 +179,8 @@ static const char * const smbus_pnp_ids[] = {
"LEN0096", /* X280 */
"LEN0097", /* X280 -> ALPS trackpoint */
"LEN200f", /* T450s */
+ "LEN2054", /* E480 */
+ "LEN2055", /* E580 */
"SYN3052", /* HP EliteBook 840 G4 */
"SYN3221", /* HP 15-ay000 */
NULL
diff --git a/drivers/input/touchscreen/silead.c b/drivers/input/touchscreen/silead.c
index d196ac3d8b8c..e5c3b066bd2a 100644
--- a/drivers/input/touchscreen/silead.c
+++ b/drivers/input/touchscreen/silead.c
@@ -604,6 +604,7 @@ static const struct acpi_device_id silead_ts_acpi_match[] = {
{ "MSSL1680", 0 },
{ "MSSL0001", 0 },
{ "MSSL0002", 0 },
+ { "MSSL0017", 0 },
{ }
};
MODULE_DEVICE_TABLE(acpi, silead_ts_acpi_match);
diff --git a/drivers/mmc/core/core.c b/drivers/mmc/core/core.c
index 6600b3466dfb..0a74785e575b 100644
--- a/drivers/mmc/core/core.c
+++ b/drivers/mmc/core/core.c
@@ -144,8 +144,9 @@ void mmc_request_done(struct mmc_host *host, struct mmc_request *mrq)
int err = cmd->error;

/* Flag re-tuning needed on CRC errors */
- if ((cmd->opcode != MMC_SEND_TUNING_BLOCK &&
- cmd->opcode != MMC_SEND_TUNING_BLOCK_HS200) &&
+ if (cmd->opcode != MMC_SEND_TUNING_BLOCK &&
+ cmd->opcode != MMC_SEND_TUNING_BLOCK_HS200 &&
+ !host->retune_crc_disable &&
(err == -EILSEQ || (mrq->sbc && mrq->sbc->error == -EILSEQ) ||
(mrq->data && mrq->data->error == -EILSEQ) ||
(mrq->stop && mrq->stop->error == -EILSEQ)))
diff --git a/drivers/mmc/core/sdio.c b/drivers/mmc/core/sdio.c
index d8e17ea6126d..0aa99694b937 100644
--- a/drivers/mmc/core/sdio.c
+++ b/drivers/mmc/core/sdio.c
@@ -934,6 +934,10 @@ static int mmc_sdio_pre_suspend(struct mmc_host *host)
*/
static int mmc_sdio_suspend(struct mmc_host *host)
{
+ /* Prevent processing of SDIO IRQs in suspended state. */
+ mmc_card_set_suspended(host->card);
+ cancel_delayed_work_sync(&host->sdio_irq_work);
+
mmc_claim_host(host);

if (mmc_card_keep_power(host) && mmc_card_wake_sdio_irq(host))
@@ -982,13 +986,20 @@ static int mmc_sdio_resume(struct mmc_host *host)
err = sdio_enable_4bit_bus(host->card);
}

- if (!err && host->sdio_irqs) {
+ if (err)
+ goto out;
+
+ /* Allow SDIO IRQs to be processed again. */
+ mmc_card_clr_suspended(host->card);
+
+ if (host->sdio_irqs) {
if (!(host->caps2 & MMC_CAP2_SDIO_IRQ_NOTHREAD))
wake_up_process(host->sdio_irq_thread);
else if (host->caps & MMC_CAP_SDIO_IRQ)
host->ops->enable_sdio_irq(host, 1);
}

+out:
mmc_release_host(host);

host->pm_flags &= ~MMC_PM_KEEP_POWER;
diff --git a/drivers/mmc/core/sdio_io.c b/drivers/mmc/core/sdio_io.c
index d40744bbafa9..ed2d8c48ea17 100644
--- a/drivers/mmc/core/sdio_io.c
+++ b/drivers/mmc/core/sdio_io.c
@@ -18,6 +18,7 @@
#include "sdio_ops.h"
#include "core.h"
#include "card.h"
+#include "host.h"

/**
* sdio_claim_host - exclusively claim a bus for a certain SDIO function
@@ -725,3 +726,79 @@ int sdio_set_host_pm_flags(struct sdio_func *func, mmc_pm_flag_t flags)
return 0;
}
EXPORT_SYMBOL_GPL(sdio_set_host_pm_flags);
+
+/**
+ * sdio_retune_crc_disable - temporarily disable retuning on CRC errors
+ * @func: SDIO function attached to host
+ *
+ * If the SDIO card is known to be in a state where it might produce
+ * CRC errors on the bus in response to commands (like if we know it is
+ * transitioning between power states), an SDIO function driver can
+ * call this function to temporarily disable the SD/MMC core behavior of
+ * triggering an automatic retuning.
+ *
+ * This function should be called while the host is claimed and the host
+ * should remain claimed until sdio_retune_crc_enable() is called.
+ * Specifically, the expected sequence of calls is:
+ * - sdio_claim_host()
+ * - sdio_retune_crc_disable()
+ * - some number of calls like sdio_writeb() and sdio_readb()
+ * - sdio_retune_crc_enable()
+ * - sdio_release_host()
+ */
+void sdio_retune_crc_disable(struct sdio_func *func)
+{
+ func->card->host->retune_crc_disable = true;
+}
+EXPORT_SYMBOL_GPL(sdio_retune_crc_disable);
+
+/**
+ * sdio_retune_crc_enable - re-enable retuning on CRC errors
+ * @func: SDIO function attached to host
+ *
+ * This is the compement to sdio_retune_crc_disable().
+ */
+void sdio_retune_crc_enable(struct sdio_func *func)
+{
+ func->card->host->retune_crc_disable = false;
+}
+EXPORT_SYMBOL_GPL(sdio_retune_crc_enable);
+
+/**
+ * sdio_retune_hold_now - start deferring retuning requests till release
+ * @func: SDIO function attached to host
+ *
+ * This function can be called if it's currently a bad time to do
+ * a retune of the SDIO card. Retune requests made during this time
+ * will be held and we'll actually do the retune sometime after the
+ * release.
+ *
+ * This function could be useful if an SDIO card is in a power state
+ * where it can respond to a small subset of commands that doesn't
+ * include the retuning command. Care should be taken when using
+ * this function since (presumably) the retuning request we might be
+ * deferring was made for a good reason.
+ *
+ * This function should be called while the host is claimed.
+ */
+void sdio_retune_hold_now(struct sdio_func *func)
+{
+ mmc_retune_hold_now(func->card->host);
+}
+EXPORT_SYMBOL_GPL(sdio_retune_hold_now);
+
+/**
+ * sdio_retune_release - signal that it's OK to retune now
+ * @func: SDIO function attached to host
+ *
+ * This is the complement to sdio_retune_hold_now(). Calling this
+ * function won't make a retune happen right away but will allow
+ * them to be scheduled normally.
+ *
+ * This function should be called while the host is claimed.
+ */
+void sdio_retune_release(struct sdio_func *func)
+{
+ mmc_retune_release(func->card->host);
+}
+EXPORT_SYMBOL_GPL(sdio_retune_release);
diff --git a/drivers/mmc/core/sdio_irq.c b/drivers/mmc/core/sdio_irq.c
index 7ca7b99413f0..b299a24d33f9 100644
--- a/drivers/mmc/core/sdio_irq.c
+++ b/drivers/mmc/core/sdio_irq.c
@@ -38,6 +38,10 @@ static int process_sdio_pending_irqs(struct mmc_host *host)
unsigned char pending;
struct sdio_func *func;

+ /* Don't process SDIO IRQs if the card is suspended. */
+ if (mmc_card_suspended(card))
+ return 0;
+
/*
* Optimization, if there is only 1 function interrupt registered
* and we know an IRQ was signaled then call irq handler directly.
diff --git a/drivers/mmc/host/sdhci-pci-o2micro.c b/drivers/mmc/host/sdhci-pci-o2micro.c
index cc3ffeffd7a2..fa8d9da2ab7f 100644
--- a/drivers/mmc/host/sdhci-pci-o2micro.c
+++ b/drivers/mmc/host/sdhci-pci-o2micro.c
@@ -117,6 +117,7 @@ static int sdhci_o2_execute_tuning(struct mmc_host *mmc, u32 opcode)
*/
if (mmc->ios.bus_width == MMC_BUS_WIDTH_8) {
current_bus_width = mmc->ios.bus_width;
+ mmc->ios.bus_width = MMC_BUS_WIDTH_4;
sdhci_set_bus_width(host, MMC_BUS_WIDTH_4);
}

@@ -128,8 +129,10 @@ static int sdhci_o2_execute_tuning(struct mmc_host *mmc, u32 opcode)

sdhci_end_tuning(host);

- if (current_bus_width == MMC_BUS_WIDTH_8)
+ if (current_bus_width == MMC_BUS_WIDTH_8) {
+ mmc->ios.bus_width = MMC_BUS_WIDTH_8;
sdhci_set_bus_width(host, current_bus_width);
+ }

host->flags &= ~SDHCI_HS400_TUNING;
return 0;
diff --git a/drivers/net/can/flexcan.c b/drivers/net/can/flexcan.c
index 2646faffd36e..6f265d2e647b 100644
--- a/drivers/net/can/flexcan.c
+++ b/drivers/net/can/flexcan.c
@@ -165,7 +165,7 @@
#define FLEXCAN_MB_CNT_LENGTH(x) (((x) & 0xf) << 16)
#define FLEXCAN_MB_CNT_TIMESTAMP(x) ((x) & 0xffff)

-#define FLEXCAN_TIMEOUT_US (50)
+#define FLEXCAN_TIMEOUT_US (250)

/* FLEXCAN hardware feature flags
*
diff --git a/drivers/net/can/xilinx_can.c b/drivers/net/can/xilinx_can.c
index 045f0845e665..3df23487487f 100644
--- a/drivers/net/can/xilinx_can.c
+++ b/drivers/net/can/xilinx_can.c
@@ -1424,7 +1424,7 @@ static const struct xcan_devtype_data xcan_canfd_data = {
XCAN_FLAG_RXMNF |
XCAN_FLAG_TX_MAILBOXES |
XCAN_FLAG_RX_FIFO_MULTI,
- .bittiming_const = &xcan_bittiming_const,
+ .bittiming_const = &xcan_bittiming_const_canfd,
.btr_ts2_shift = XCAN_BTR_TS2_SHIFT_CANFD,
.btr_sjw_shift = XCAN_BTR_SJW_SHIFT_CANFD,
.bus_clk_name = "s_axi_aclk",
diff --git a/drivers/net/dsa/mv88e6xxx/chip.c b/drivers/net/dsa/mv88e6xxx/chip.c
index dfaad1c2c2b8..411cfb806459 100644
--- a/drivers/net/dsa/mv88e6xxx/chip.c
+++ b/drivers/net/dsa/mv88e6xxx/chip.c
@@ -1484,7 +1484,7 @@ static int mv88e6xxx_vtu_get(struct mv88e6xxx_chip *chip, u16 vid,
int err;

if (!vid)
- return -EINVAL;
+ return -EOPNOTSUPP;

entry->vid = vid - 1;
entry->valid = false;
diff --git a/drivers/net/ethernet/hisilicon/hns/hns_ethtool.c b/drivers/net/ethernet/hisilicon/hns/hns_ethtool.c
index e2710ff48fb0..1fa0cd527ead 100644
--- a/drivers/net/ethernet/hisilicon/hns/hns_ethtool.c
+++ b/drivers/net/ethernet/hisilicon/hns/hns_ethtool.c
@@ -339,6 +339,7 @@ static int __lb_setup(struct net_device *ndev,
static int __lb_up(struct net_device *ndev,
enum hnae_loop loop_mode)
{
+#define NIC_LB_TEST_WAIT_PHY_LINK_TIME 300
struct hns_nic_priv *priv = netdev_priv(ndev);
struct hnae_handle *h = priv->ae_handle;
int speed, duplex;
@@ -365,6 +366,9 @@ static int __lb_up(struct net_device *ndev,

h->dev->ops->adjust_link(h, speed, duplex);

+ /* wait adjust link done and phy ready */
+ msleep(NIC_LB_TEST_WAIT_PHY_LINK_TIME);
+
return 0;
}

diff --git a/drivers/net/ethernet/mediatek/mtk_eth_soc.c b/drivers/net/ethernet/mediatek/mtk_eth_soc.c
index 6e6abdc399de..1d55f014725e 100644
--- a/drivers/net/ethernet/mediatek/mtk_eth_soc.c
+++ b/drivers/net/ethernet/mediatek/mtk_eth_soc.c
@@ -1784,6 +1784,7 @@ static void mtk_poll_controller(struct net_device *dev)

static int mtk_start_dma(struct mtk_eth *eth)
{
+ u32 rx_2b_offset = (NET_IP_ALIGN == 2) ? MTK_RX_2B_OFFSET : 0;
int err;

err = mtk_dma_init(eth);
@@ -1800,7 +1801,7 @@ static int mtk_start_dma(struct mtk_eth *eth)
MTK_QDMA_GLO_CFG);

mtk_w32(eth,
- MTK_RX_DMA_EN | MTK_RX_2B_OFFSET |
+ MTK_RX_DMA_EN | rx_2b_offset |
MTK_RX_BT_32DWORDS | MTK_MULTI_EN,
MTK_PDMA_GLO_CFG);

@@ -2304,13 +2305,13 @@ static int mtk_get_rxnfc(struct net_device *dev, struct ethtool_rxnfc *cmd,

switch (cmd->cmd) {
case ETHTOOL_GRXRINGS:
- if (dev->features & NETIF_F_LRO) {
+ if (dev->hw_features & NETIF_F_LRO) {
cmd->data = MTK_MAX_RX_RING_NUM;
ret = 0;
}
break;
case ETHTOOL_GRXCLSRLCNT:
- if (dev->features & NETIF_F_LRO) {
+ if (dev->hw_features & NETIF_F_LRO) {
struct mtk_mac *mac = netdev_priv(dev);

cmd->rule_cnt = mac->hwlro_ip_cnt;
@@ -2318,11 +2319,11 @@ static int mtk_get_rxnfc(struct net_device *dev, struct ethtool_rxnfc *cmd,
}
break;
case ETHTOOL_GRXCLSRULE:
- if (dev->features & NETIF_F_LRO)
+ if (dev->hw_features & NETIF_F_LRO)
ret = mtk_hwlro_get_fdir_entry(dev, cmd);
break;
case ETHTOOL_GRXCLSRLALL:
- if (dev->features & NETIF_F_LRO)
+ if (dev->hw_features & NETIF_F_LRO)
ret = mtk_hwlro_get_fdir_all(dev, cmd,
rule_locs);
break;
@@ -2339,11 +2340,11 @@ static int mtk_set_rxnfc(struct net_device *dev, struct ethtool_rxnfc *cmd)

switch (cmd->cmd) {
case ETHTOOL_SRXCLSRLINS:
- if (dev->features & NETIF_F_LRO)
+ if (dev->hw_features & NETIF_F_LRO)
ret = mtk_hwlro_add_ipaddr(dev, cmd);
break;
case ETHTOOL_SRXCLSRLDEL:
- if (dev->features & NETIF_F_LRO)
+ if (dev->hw_features & NETIF_F_LRO)
ret = mtk_hwlro_del_ipaddr(dev, cmd);
break;
default:
diff --git a/drivers/net/ipvlan/ipvlan_main.c b/drivers/net/ipvlan/ipvlan_main.c
index 68b8007da82b..0115a2868933 100644
--- a/drivers/net/ipvlan/ipvlan_main.c
+++ b/drivers/net/ipvlan/ipvlan_main.c
@@ -178,7 +178,7 @@ static void ipvlan_port_destroy(struct net_device *dev)
}

#define IPVLAN_FEATURES \
- (NETIF_F_SG | NETIF_F_HW_CSUM | NETIF_F_HIGHDMA | NETIF_F_FRAGLIST | \
+ (NETIF_F_SG | NETIF_F_CSUM_MASK | NETIF_F_HIGHDMA | NETIF_F_FRAGLIST | \
NETIF_F_GSO | NETIF_F_TSO | NETIF_F_GSO_ROBUST | \
NETIF_F_TSO_ECN | NETIF_F_TSO6 | NETIF_F_GRO | NETIF_F_RXCSUM | \
NETIF_F_HW_VLAN_CTAG_FILTER | NETIF_F_HW_VLAN_STAG_FILTER)
diff --git a/drivers/net/wireless/broadcom/brcm80211/brcmfmac/sdio.c b/drivers/net/wireless/broadcom/brcm80211/brcmfmac/sdio.c
index a907d7b065fa..53e4962ceb8a 100644
--- a/drivers/net/wireless/broadcom/brcm80211/brcmfmac/sdio.c
+++ b/drivers/net/wireless/broadcom/brcm80211/brcmfmac/sdio.c
@@ -667,6 +667,12 @@ brcmf_sdio_kso_control(struct brcmf_sdio *bus, bool on)

brcmf_dbg(TRACE, "Enter: on=%d\n", on);

+ sdio_retune_crc_disable(bus->sdiodev->func1);
+
+ /* Cannot re-tune if device is asleep; defer till we're awake */
+ if (on)
+ sdio_retune_hold_now(bus->sdiodev->func1);
+
wr_val = (on << SBSDIO_FUNC1_SLEEPCSR_KSO_SHIFT);
/* 1st KSO write goes to AOS wake up core if device is asleep */
brcmf_sdiod_writeb(bus->sdiodev, SBSDIO_FUNC1_SLEEPCSR, wr_val, &err);
@@ -719,6 +725,11 @@ brcmf_sdio_kso_control(struct brcmf_sdio *bus, bool on)
if (try_cnt > MAX_KSO_ATTEMPTS)
brcmf_err("max tries: rd_val=0x%x err=%d\n", rd_val, err);

+ if (on)
+ sdio_retune_release(bus->sdiodev->func1);
+
+ sdio_retune_crc_enable(bus->sdiodev->func1);
+
return err;
}

diff --git a/drivers/nvme/host/core.c b/drivers/nvme/host/core.c
index a867a139bb35..d8869d978c34 100644
--- a/drivers/nvme/host/core.c
+++ b/drivers/nvme/host/core.c
@@ -3228,7 +3228,8 @@ static int nvme_scan_ns_list(struct nvme_ctrl *ctrl, unsigned nn)
{
struct nvme_ns *ns;
__le32 *ns_list;
- unsigned i, j, nsid, prev = 0, num_lists = DIV_ROUND_UP(nn, 1024);
+ unsigned i, j, nsid, prev = 0;
+ unsigned num_lists = DIV_ROUND_UP_ULL((u64)nn, 1024);
int ret = 0;

ns_list = kzalloc(NVME_IDENTIFY_DATA_SIZE, GFP_KERNEL);
diff --git a/drivers/nvme/target/io-cmd-bdev.c b/drivers/nvme/target/io-cmd-bdev.c
index 7bc9f6240432..1096dd01ca22 100644
--- a/drivers/nvme/target/io-cmd-bdev.c
+++ b/drivers/nvme/target/io-cmd-bdev.c
@@ -239,6 +239,7 @@ u16 nvmet_bdev_parse_io_cmd(struct nvmet_req *req)
return 0;
case nvme_cmd_write_zeroes:
req->execute = nvmet_bdev_execute_write_zeroes;
+ req->data_len = 0;
return 0;
default:
pr_err("unhandled cmd %d on qid %d\n", cmd->common.opcode,
diff --git a/drivers/parport/share.c b/drivers/parport/share.c
index 5dc53d420ca8..7b4ee33c1935 100644
--- a/drivers/parport/share.c
+++ b/drivers/parport/share.c
@@ -895,6 +895,7 @@ parport_register_dev_model(struct parport *port, const char *name,
par_dev->devmodel = true;
ret = device_register(&par_dev->dev);
if (ret) {
+ kfree(par_dev->state);
put_device(&par_dev->dev);
goto err_put_port;
}
@@ -912,6 +913,7 @@ parport_register_dev_model(struct parport *port, const char *name,
spin_unlock(&port->physport->pardevice_lock);
pr_debug("%s: cannot grant exclusive access for device %s\n",
port->name, name);
+ kfree(par_dev->state);
device_unregister(&par_dev->dev);
goto err_put_port;
}
diff --git a/drivers/s390/net/qeth_l2_main.c b/drivers/s390/net/qeth_l2_main.c
index b7513c5848cf..c1c35eccd5b6 100644
--- a/drivers/s390/net/qeth_l2_main.c
+++ b/drivers/s390/net/qeth_l2_main.c
@@ -1901,7 +1901,7 @@ static void qeth_bridgeport_an_set_cb(void *priv,

l2entry = (struct qdio_brinfo_entry_l2 *)entry;
code = IPA_ADDR_CHANGE_CODE_MACADDR;
- if (l2entry->addr_lnid.lnid)
+ if (l2entry->addr_lnid.lnid < VLAN_N_VID)
code |= IPA_ADDR_CHANGE_CODE_VLANID;
qeth_bridge_emit_host_event(card, anev_reg_unreg, code,
(struct net_if_token *)&l2entry->nit,
diff --git a/drivers/scsi/smartpqi/smartpqi_init.c b/drivers/scsi/smartpqi/smartpqi_init.c
index 411d656f2530..98f2d076f938 100644
--- a/drivers/scsi/smartpqi/smartpqi_init.c
+++ b/drivers/scsi/smartpqi/smartpqi_init.c
@@ -3697,8 +3697,10 @@ static int pqi_submit_raid_request_synchronous(struct pqi_ctrl_info *ctrl_info,
return -ETIMEDOUT;
msecs_blocked =
jiffies_to_msecs(jiffies - start_jiffies);
- if (msecs_blocked >= timeout_msecs)
- return -ETIMEDOUT;
+ if (msecs_blocked >= timeout_msecs) {
+ rc = -ETIMEDOUT;
+ goto out;
+ }
timeout_msecs -= msecs_blocked;
}
}
diff --git a/drivers/scsi/ufs/ufshcd-pltfrm.c b/drivers/scsi/ufs/ufshcd-pltfrm.c
index 895a9b5ac989..30c22e16b1e3 100644
--- a/drivers/scsi/ufs/ufshcd-pltfrm.c
+++ b/drivers/scsi/ufs/ufshcd-pltfrm.c
@@ -340,24 +340,21 @@ int ufshcd_pltfrm_init(struct platform_device *pdev,
goto dealloc_host;
}

- pm_runtime_set_active(&pdev->dev);
- pm_runtime_enable(&pdev->dev);
-
ufshcd_init_lanes_per_dir(hba);

err = ufshcd_init(hba, mmio_base, irq);
if (err) {
dev_err(dev, "Initialization failed\n");
- goto out_disable_rpm;
+ goto dealloc_host;
}

platform_set_drvdata(pdev, hba);

+ pm_runtime_set_active(&pdev->dev);
+ pm_runtime_enable(&pdev->dev);
+
return 0;

-out_disable_rpm:
- pm_runtime_disable(&pdev->dev);
- pm_runtime_set_suspended(&pdev->dev);
dealloc_host:
ufshcd_dealloc_host(hba);
out:
diff --git a/drivers/scsi/ufs/ufshcd.c b/drivers/scsi/ufs/ufshcd.c
index 3183fa8c5857..b8b59cfeacd1 100644
--- a/drivers/scsi/ufs/ufshcd.c
+++ b/drivers/scsi/ufs/ufshcd.c
@@ -1914,7 +1914,8 @@ int ufshcd_copy_query_response(struct ufs_hba *hba, struct ufshcd_lrb *lrbp)
memcpy(&query_res->upiu_res, &lrbp->ucd_rsp_ptr->qr, QUERY_OSF_SIZE);

/* Get the descriptor */
- if (lrbp->ucd_rsp_ptr->qr.opcode == UPIU_QUERY_OPCODE_READ_DESC) {
+ if (hba->dev_cmd.query.descriptor &&
+ lrbp->ucd_rsp_ptr->qr.opcode == UPIU_QUERY_OPCODE_READ_DESC) {
u8 *descp = (u8 *)lrbp->ucd_rsp_ptr +
GENERAL_UPIU_REQUEST_SIZE;
u16 resp_len;
diff --git a/drivers/staging/erofs/erofs_fs.h b/drivers/staging/erofs/erofs_fs.h
index 2f8e2bf70941..7677da889f12 100644
--- a/drivers/staging/erofs/erofs_fs.h
+++ b/drivers/staging/erofs/erofs_fs.h
@@ -17,10 +17,16 @@
#define EROFS_SUPER_MAGIC_V1 0xE0F5E1E2
#define EROFS_SUPER_OFFSET 1024

+/*
+ * Any bits that aren't in EROFS_ALL_REQUIREMENTS should be
+ * incompatible with this kernel version.
+ */
+#define EROFS_ALL_REQUIREMENTS 0
+
struct erofs_super_block {
/* 0 */__le32 magic; /* in the little endian */
/* 4 */__le32 checksum; /* crc32c(super_block) */
-/* 8 */__le32 features;
+/* 8 */__le32 features; /* (aka. feature_compat) */
/* 12 */__u8 blkszbits; /* support block_size == PAGE_SIZE only */
/* 13 */__u8 reserved;

@@ -34,9 +40,10 @@ struct erofs_super_block {
/* 44 */__le32 xattr_blkaddr;
/* 48 */__u8 uuid[16]; /* 128-bit uuid for volume */
/* 64 */__u8 volume_name[16]; /* volume name */
+/* 80 */__le32 requirements; /* (aka. feature_incompat) */

-/* 80 */__u8 reserved2[48]; /* 128 bytes */
-} __packed;
+/* 84 */__u8 reserved2[44];
+} __packed; /* 128 bytes */

#define __EROFS_BIT(_prefix, _cur, _pre) enum { \
_prefix ## _cur ## _BIT = _prefix ## _pre ## _BIT + \
diff --git a/drivers/staging/erofs/internal.h b/drivers/staging/erofs/internal.h
index 58d8cbc3f921..8ce37091db20 100644
--- a/drivers/staging/erofs/internal.h
+++ b/drivers/staging/erofs/internal.h
@@ -111,6 +111,8 @@ struct erofs_sb_info {

u8 uuid[16]; /* 128-bit uuid for volume */
u8 volume_name[16]; /* volume name */
+ u32 requirements;
+
char *dev_name;

unsigned int mount_opt;
diff --git a/drivers/staging/erofs/super.c b/drivers/staging/erofs/super.c
index b0583cdb079a..b49ebdf6ebda 100644
--- a/drivers/staging/erofs/super.c
+++ b/drivers/staging/erofs/super.c
@@ -75,6 +75,22 @@ static void destroy_inode(struct inode *inode)
call_rcu(&inode->i_rcu, i_callback);
}

+static bool check_layout_compatibility(struct super_block *sb,
+ struct erofs_super_block *layout)
+{
+ const unsigned int requirements = le32_to_cpu(layout->requirements);
+
+ EROFS_SB(sb)->requirements = requirements;
+
+ /* check if current kernel meets all mandatory requirements */
+ if (requirements & (~EROFS_ALL_REQUIREMENTS)) {
+ errln("unidentified requirements %x, please upgrade kernel version",
+ requirements & ~EROFS_ALL_REQUIREMENTS);
+ return false;
+ }
+ return true;
+}
+
static int superblock_read(struct super_block *sb)
{
struct erofs_sb_info *sbi;
@@ -108,6 +124,9 @@ static int superblock_read(struct super_block *sb)
goto out;
}

+ if (!check_layout_compatibility(sb, layout))
+ goto out;
+
sbi->blocks = le32_to_cpu(layout->blocks);
sbi->meta_blkaddr = le32_to_cpu(layout->meta_blkaddr);
#ifdef CONFIG_EROFS_FS_XATTR
diff --git a/drivers/usb/chipidea/udc.c b/drivers/usb/chipidea/udc.c
index 9852ec5e6e01..cc7c856126df 100644
--- a/drivers/usb/chipidea/udc.c
+++ b/drivers/usb/chipidea/udc.c
@@ -1621,6 +1621,25 @@ static int ci_udc_pullup(struct usb_gadget *_gadget, int is_on)
static int ci_udc_start(struct usb_gadget *gadget,
struct usb_gadget_driver *driver);
static int ci_udc_stop(struct usb_gadget *gadget);
+
+/* Match ISOC IN from the highest endpoint */
+static struct usb_ep *ci_udc_match_ep(struct usb_gadget *gadget,
+ struct usb_endpoint_descriptor *desc,
+ struct usb_ss_ep_comp_descriptor *comp_desc)
+{
+ struct ci_hdrc *ci = container_of(gadget, struct ci_hdrc, gadget);
+ struct usb_ep *ep;
+
+ if (usb_endpoint_xfer_isoc(desc) && usb_endpoint_dir_in(desc)) {
+ list_for_each_entry_reverse(ep, &ci->gadget.ep_list, ep_list) {
+ if (ep->caps.dir_in && !ep->claimed)
+ return ep;
+ }
+ }
+
+ return NULL;
+}
+
/**
* Device operations part of the API to the USB controller hardware,
* which don't involve endpoints (or i/o)
@@ -1634,6 +1653,7 @@ static const struct usb_gadget_ops usb_gadget_ops = {
.vbus_draw = ci_udc_vbus_draw,
.udc_start = ci_udc_start,
.udc_stop = ci_udc_stop,
+ .match_ep = ci_udc_match_ep,
};

static int init_eps(struct ci_hdrc *ci)
diff --git a/drivers/usb/host/xhci-ring.c b/drivers/usb/host/xhci-ring.c
index b62953ee0fc6..f896a00662ef 100644
--- a/drivers/usb/host/xhci-ring.c
+++ b/drivers/usb/host/xhci-ring.c
@@ -1604,8 +1604,13 @@ static void handle_port_status(struct xhci_hcd *xhci,
usb_hcd_resume_root_hub(hcd);
}

- if (hcd->speed >= HCD_USB3 && (portsc & PORT_PLS_MASK) == XDEV_INACTIVE)
+ if (hcd->speed >= HCD_USB3 &&
+ (portsc & PORT_PLS_MASK) == XDEV_INACTIVE) {
+ slot_id = xhci_find_slot_id_by_port(hcd, xhci, hcd_portnum + 1);
+ if (slot_id && xhci->devs[slot_id])
+ xhci->devs[slot_id]->flags |= VDEV_PORT_ERROR;
bus_state->port_remote_wakeup &= ~(1 << hcd_portnum);
+ }

if ((portsc & PORT_PLC) && (portsc & PORT_PLS_MASK) == XDEV_RESUME) {
xhci_dbg(xhci, "port resume event for port %d\n", port_id);
@@ -1793,6 +1798,14 @@ static void xhci_cleanup_halted_endpoint(struct xhci_hcd *xhci,
{
struct xhci_virt_ep *ep = &xhci->devs[slot_id]->eps[ep_index];
struct xhci_command *command;
+
+ /*
+ * Avoid resetting endpoint if link is inactive. Can cause host hang.
+ * Device will be reset soon to recover the link so don't do anything
+ */
+ if (xhci->devs[slot_id]->flags & VDEV_PORT_ERROR)
+ return;
+
command = xhci_alloc_command(xhci, false, GFP_ATOMIC);
if (!command)
return;
diff --git a/drivers/usb/host/xhci.c b/drivers/usb/host/xhci.c
index f30b065095fa..4ffadca2c71a 100644
--- a/drivers/usb/host/xhci.c
+++ b/drivers/usb/host/xhci.c
@@ -1441,6 +1441,10 @@ static int xhci_urb_enqueue(struct usb_hcd *hcd, struct urb *urb, gfp_t mem_flag
xhci_dbg(xhci, "urb submitted during PCI suspend\n");
return -ESHUTDOWN;
}
+ if (xhci->devs[slot_id]->flags & VDEV_PORT_ERROR) {
+ xhci_dbg(xhci, "Can't queue urb, port error, link inactive\n");
+ return -ENODEV;
+ }

if (usb_endpoint_xfer_isoc(&urb->ep->desc))
num_tds = urb->number_of_packets;
@@ -3724,6 +3728,7 @@ static int xhci_discover_or_reset_device(struct usb_hcd *hcd,
}
/* If necessary, update the number of active TTs on this root port */
xhci_update_tt_active_eps(xhci, virt_dev, old_active_eps);
+ virt_dev->flags = 0;
ret = 0;

command_cleanup:
@@ -5030,16 +5035,26 @@ int xhci_gen_setup(struct usb_hcd *hcd, xhci_get_quirks_t get_quirks)
} else {
/*
* Some 3.1 hosts return sbrn 0x30, use xhci supported protocol
- * minor revision instead of sbrn
+ * minor revision instead of sbrn. Minor revision is a two digit
+ * BCD containing minor and sub-minor numbers, only show minor.
*/
- minor_rev = xhci->usb3_rhub.min_rev;
- if (minor_rev) {
+ minor_rev = xhci->usb3_rhub.min_rev / 0x10;
+
+ switch (minor_rev) {
+ case 2:
+ hcd->speed = HCD_USB32;
+ hcd->self.root_hub->speed = USB_SPEED_SUPER_PLUS;
+ hcd->self.root_hub->rx_lanes = 2;
+ hcd->self.root_hub->tx_lanes = 2;
+ break;
+ case 1:
hcd->speed = HCD_USB31;
hcd->self.root_hub->speed = USB_SPEED_SUPER_PLUS;
+ break;
}
- xhci_info(xhci, "Host supports USB 3.%x %s SuperSpeed\n",
+ xhci_info(xhci, "Host supports USB 3.%x %sSuperSpeed\n",
minor_rev,
- minor_rev ? "Enhanced" : "");
+ minor_rev ? "Enhanced " : "");

xhci->usb3_rhub.hcd = hcd;
/* xHCI private pointer was set in xhci_pci_probe for the second
diff --git a/drivers/usb/host/xhci.h b/drivers/usb/host/xhci.h
index dc00f59c8e69..761b341d27b0 100644
--- a/drivers/usb/host/xhci.h
+++ b/drivers/usb/host/xhci.h
@@ -1010,6 +1010,15 @@ struct xhci_virt_device {
u8 real_port;
struct xhci_interval_bw_table *bw_table;
struct xhci_tt_bw_info *tt_info;
+ /*
+ * flags for state tracking based on events and issued commands.
+ * Software can not rely on states from output contexts because of
+ * latency between events and xHC updating output context values.
+ * See xhci 1.1 section 4.8.3 for more details
+ */
+ unsigned long flags;
+#define VDEV_PORT_ERROR BIT(0) /* Port error, link inactive */
+
/* The current max exit latency for the enabled USB3 link states. */
u16 current_mel;
/* Used for the debugfs interfaces. */
diff --git a/fs/btrfs/reada.c b/fs/btrfs/reada.c
index dec14b739b10..859274e38417 100644
--- a/fs/btrfs/reada.c
+++ b/fs/btrfs/reada.c
@@ -745,6 +745,7 @@ static void __reada_start_machine(struct btrfs_fs_info *fs_info)
u64 total = 0;
int i;

+again:
do {
enqueued = 0;
mutex_lock(&fs_devices->device_list_mutex);
@@ -756,6 +757,10 @@ static void __reada_start_machine(struct btrfs_fs_info *fs_info)
mutex_unlock(&fs_devices->device_list_mutex);
total += enqueued;
} while (enqueued && total < 10000);
+ if (fs_devices->seed) {
+ fs_devices = fs_devices->seed;
+ goto again;
+ }

if (enqueued == 0)
return;
diff --git a/fs/cifs/smb2maperror.c b/fs/cifs/smb2maperror.c
index 18814f1d67d9..3c0bad577859 100644
--- a/fs/cifs/smb2maperror.c
+++ b/fs/cifs/smb2maperror.c
@@ -457,7 +457,7 @@ static const struct status_to_posix_error smb2_error_map_table[] = {
{STATUS_FILE_INVALID, -EIO, "STATUS_FILE_INVALID"},
{STATUS_ALLOTTED_SPACE_EXCEEDED, -EIO,
"STATUS_ALLOTTED_SPACE_EXCEEDED"},
- {STATUS_INSUFFICIENT_RESOURCES, -EREMOTEIO,
+ {STATUS_INSUFFICIENT_RESOURCES, -EAGAIN,
"STATUS_INSUFFICIENT_RESOURCES"},
{STATUS_DFS_EXIT_PATH_FOUND, -EIO, "STATUS_DFS_EXIT_PATH_FOUND"},
{STATUS_DEVICE_DATA_ERROR, -EIO, "STATUS_DEVICE_DATA_ERROR"},
diff --git a/fs/overlayfs/file.c b/fs/overlayfs/file.c
index 00338b828f76..0bd276e4ccbe 100644
--- a/fs/overlayfs/file.c
+++ b/fs/overlayfs/file.c
@@ -409,36 +409,16 @@ static long ovl_real_ioctl(struct file *file, unsigned int cmd,
return ret;
}

-static unsigned int ovl_get_inode_flags(struct inode *inode)
-{
- unsigned int flags = READ_ONCE(inode->i_flags);
- unsigned int ovl_iflags = 0;
-
- if (flags & S_SYNC)
- ovl_iflags |= FS_SYNC_FL;
- if (flags & S_APPEND)
- ovl_iflags |= FS_APPEND_FL;
- if (flags & S_IMMUTABLE)
- ovl_iflags |= FS_IMMUTABLE_FL;
- if (flags & S_NOATIME)
- ovl_iflags |= FS_NOATIME_FL;
-
- return ovl_iflags;
-}
-
-static long ovl_ioctl_set_flags(struct file *file, unsigned long arg)
+static long ovl_ioctl_set_flags(struct file *file, unsigned int cmd,
+ unsigned long arg, unsigned int iflags)
{
long ret;
struct inode *inode = file_inode(file);
- unsigned int flags;
- unsigned int old_flags;
+ unsigned int old_iflags;

if (!inode_owner_or_capable(inode))
return -EACCES;

- if (get_user(flags, (int __user *) arg))
- return -EFAULT;
-
ret = mnt_want_write_file(file);
if (ret)
return ret;
@@ -447,8 +427,8 @@ static long ovl_ioctl_set_flags(struct file *file, unsigned long arg)

/* Check the capability before cred override */
ret = -EPERM;
- old_flags = ovl_get_inode_flags(inode);
- if (((flags ^ old_flags) & (FS_APPEND_FL | FS_IMMUTABLE_FL)) &&
+ old_iflags = READ_ONCE(inode->i_flags);
+ if (((iflags ^ old_iflags) & (S_APPEND | S_IMMUTABLE)) &&
!capable(CAP_LINUX_IMMUTABLE))
goto unlock;

@@ -456,7 +436,7 @@ static long ovl_ioctl_set_flags(struct file *file, unsigned long arg)
if (ret)
goto unlock;

- ret = ovl_real_ioctl(file, FS_IOC_SETFLAGS, arg);
+ ret = ovl_real_ioctl(file, cmd, arg);

ovl_copyflags(ovl_inode_real(inode), inode);
unlock:
@@ -468,17 +448,79 @@ static long ovl_ioctl_set_flags(struct file *file, unsigned long arg)

}

+static unsigned int ovl_fsflags_to_iflags(unsigned int flags)
+{
+ unsigned int iflags = 0;
+
+ if (flags & FS_SYNC_FL)
+ iflags |= S_SYNC;
+ if (flags & FS_APPEND_FL)
+ iflags |= S_APPEND;
+ if (flags & FS_IMMUTABLE_FL)
+ iflags |= S_IMMUTABLE;
+ if (flags & FS_NOATIME_FL)
+ iflags |= S_NOATIME;
+
+ return iflags;
+}
+
+static long ovl_ioctl_set_fsflags(struct file *file, unsigned int cmd,
+ unsigned long arg)
+{
+ unsigned int flags;
+
+ if (get_user(flags, (int __user *) arg))
+ return -EFAULT;
+
+ return ovl_ioctl_set_flags(file, cmd, arg,
+ ovl_fsflags_to_iflags(flags));
+}
+
+static unsigned int ovl_fsxflags_to_iflags(unsigned int xflags)
+{
+ unsigned int iflags = 0;
+
+ if (xflags & FS_XFLAG_SYNC)
+ iflags |= S_SYNC;
+ if (xflags & FS_XFLAG_APPEND)
+ iflags |= S_APPEND;
+ if (xflags & FS_XFLAG_IMMUTABLE)
+ iflags |= S_IMMUTABLE;
+ if (xflags & FS_XFLAG_NOATIME)
+ iflags |= S_NOATIME;
+
+ return iflags;
+}
+
+static long ovl_ioctl_set_fsxflags(struct file *file, unsigned int cmd,
+ unsigned long arg)
+{
+ struct fsxattr fa;
+
+ memset(&fa, 0, sizeof(fa));
+ if (copy_from_user(&fa, (void __user *) arg, sizeof(fa)))
+ return -EFAULT;
+
+ return ovl_ioctl_set_flags(file, cmd, arg,
+ ovl_fsxflags_to_iflags(fa.fsx_xflags));
+}
+
static long ovl_ioctl(struct file *file, unsigned int cmd, unsigned long arg)
{
long ret;

switch (cmd) {
case FS_IOC_GETFLAGS:
+ case FS_IOC_FSGETXATTR:
ret = ovl_real_ioctl(file, cmd, arg);
break;

case FS_IOC_SETFLAGS:
- ret = ovl_ioctl_set_flags(file, arg);
+ ret = ovl_ioctl_set_fsflags(file, cmd, arg);
+ break;
+
+ case FS_IOC_FSSETXATTR:
+ ret = ovl_ioctl_set_fsxflags(file, cmd, arg);
break;

default:
diff --git a/fs/overlayfs/inode.c b/fs/overlayfs/inode.c
index b48273e846ad..f0389849fd80 100644
--- a/fs/overlayfs/inode.c
+++ b/fs/overlayfs/inode.c
@@ -553,15 +553,15 @@ static void ovl_fill_inode(struct inode *inode, umode_t mode, dev_t rdev,
int xinobits = ovl_xino_bits(inode->i_sb);

/*
- * When NFS export is enabled and d_ino is consistent with st_ino
- * (samefs or i_ino has enough bits to encode layer), set the same
- * value used for d_ino to i_ino, because nfsd readdirplus compares
- * d_ino values to i_ino values of child entries. When called from
+ * When d_ino is consistent with st_ino (samefs or i_ino has enough
+ * bits to encode layer), set the same value used for st_ino to i_ino,
+ * so inode number exposed via /proc/locks and a like will be
+ * consistent with d_ino and st_ino values. An i_ino value inconsistent
+ * with d_ino also causes nfsd readdirplus to fail. When called from
* ovl_new_inode(), ino arg is 0, so i_ino will be updated to real
* upper inode i_ino on ovl_inode_init() or ovl_inode_update().
*/
- if (inode->i_sb->s_export_op &&
- (ovl_same_sb(inode->i_sb) || xinobits)) {
+ if (ovl_same_sb(inode->i_sb) || xinobits) {
inode->i_ino = ino;
if (xinobits && fsid && !(ino >> (64 - xinobits)))
inode->i_ino |= (unsigned long)fsid << (64 - xinobits);
@@ -777,6 +777,54 @@ struct inode *ovl_lookup_inode(struct super_block *sb, struct dentry *real,
return inode;
}

+bool ovl_lookup_trap_inode(struct super_block *sb, struct dentry *dir)
+{
+ struct inode *key = d_inode(dir);
+ struct inode *trap;
+ bool res;
+
+ trap = ilookup5(sb, (unsigned long) key, ovl_inode_test, key);
+ if (!trap)
+ return false;
+
+ res = IS_DEADDIR(trap) && !ovl_inode_upper(trap) &&
+ !ovl_inode_lower(trap);
+
+ iput(trap);
+ return res;
+}
+
+/*
+ * Create an inode cache entry for layer root dir, that will intentionally
+ * fail ovl_verify_inode(), so any lookup that will find some layer root
+ * will fail.
+ */
+struct inode *ovl_get_trap_inode(struct super_block *sb, struct dentry *dir)
+{
+ struct inode *key = d_inode(dir);
+ struct inode *trap;
+
+ if (!d_is_dir(dir))
+ return ERR_PTR(-ENOTDIR);
+
+ trap = iget5_locked(sb, (unsigned long) key, ovl_inode_test,
+ ovl_inode_set, key);
+ if (!trap)
+ return ERR_PTR(-ENOMEM);
+
+ if (!(trap->i_state & I_NEW)) {
+ /* Conflicting layer roots? */
+ iput(trap);
+ return ERR_PTR(-ELOOP);
+ }
+
+ trap->i_mode = S_IFDIR;
+ trap->i_flags = S_DEAD;
+ unlock_new_inode(trap);
+
+ return trap;
+}
+
/*
* Does overlay inode need to be hashed by lower inode?
*/
diff --git a/fs/overlayfs/namei.c b/fs/overlayfs/namei.c
index efd372312ef1..badf039267a2 100644
--- a/fs/overlayfs/namei.c
+++ b/fs/overlayfs/namei.c
@@ -18,6 +18,7 @@
#include "overlayfs.h"

struct ovl_lookup_data {
+ struct super_block *sb;
struct qstr name;
bool is_dir;
bool opaque;
@@ -244,6 +245,12 @@ static int ovl_lookup_single(struct dentry *base, struct ovl_lookup_data *d,
if (!d->metacopy || d->last)
goto out;
} else {
+ if (ovl_lookup_trap_inode(d->sb, this)) {
+ /* Caught in a trap of overlapping layers */
+ err = -ELOOP;
+ goto out_err;
+ }
+
if (last_element)
d->is_dir = true;
if (d->last)
@@ -819,6 +826,7 @@ struct dentry *ovl_lookup(struct inode *dir, struct dentry *dentry,
int err;
bool metacopy = false;
struct ovl_lookup_data d = {
+ .sb = dentry->d_sb,
.name = dentry->d_name,
.is_dir = false,
.opaque = false,
diff --git a/fs/overlayfs/overlayfs.h b/fs/overlayfs/overlayfs.h
index 80fb66426760..265bf9cfde08 100644
--- a/fs/overlayfs/overlayfs.h
+++ b/fs/overlayfs/overlayfs.h
@@ -270,6 +270,7 @@ void ovl_clear_flag(unsigned long flag, struct inode *inode);
bool ovl_test_flag(unsigned long flag, struct inode *inode);
bool ovl_inuse_trylock(struct dentry *dentry);
void ovl_inuse_unlock(struct dentry *dentry);
+bool ovl_is_inuse(struct dentry *dentry);
bool ovl_need_index(struct dentry *dentry);
int ovl_nlink_start(struct dentry *dentry, bool *locked);
void ovl_nlink_end(struct dentry *dentry, bool locked);
@@ -366,6 +367,8 @@ struct ovl_inode_params {
struct inode *ovl_new_inode(struct super_block *sb, umode_t mode, dev_t rdev);
struct inode *ovl_lookup_inode(struct super_block *sb, struct dentry *real,
bool is_upper);
+bool ovl_lookup_trap_inode(struct super_block *sb, struct dentry *dir);
+struct inode *ovl_get_trap_inode(struct super_block *sb, struct dentry *dir);
struct inode *ovl_get_inode(struct super_block *sb,
struct ovl_inode_params *oip);
static inline void ovl_copyattr(struct inode *from, struct inode *to)
diff --git a/fs/overlayfs/ovl_entry.h b/fs/overlayfs/ovl_entry.h
index ec237035333a..6ed1ace8f8b3 100644
--- a/fs/overlayfs/ovl_entry.h
+++ b/fs/overlayfs/ovl_entry.h
@@ -29,6 +29,8 @@ struct ovl_sb {

struct ovl_layer {
struct vfsmount *mnt;
+ /* Trap in ovl inode cache */
+ struct inode *trap;
struct ovl_sb *fs;
/* Index of this layer in fs root (upper idx == 0) */
int idx;
@@ -65,6 +67,10 @@ struct ovl_fs {
/* Did we take the inuse lock? */
bool upperdir_locked;
bool workdir_locked;
+ /* Traps in ovl inode cache */
+ struct inode *upperdir_trap;
+ struct inode *workdir_trap;
+ struct inode *indexdir_trap;
/* Inode numbers in all layers do not use the high xino_bits */
unsigned int xino_bits;
};
diff --git a/fs/overlayfs/super.c b/fs/overlayfs/super.c
index 0fb0a59a5e5c..2d028c02621f 100644
--- a/fs/overlayfs/super.c
+++ b/fs/overlayfs/super.c
@@ -217,6 +217,9 @@ static void ovl_free_fs(struct ovl_fs *ofs)
{
unsigned i;

+ iput(ofs->indexdir_trap);
+ iput(ofs->workdir_trap);
+ iput(ofs->upperdir_trap);
dput(ofs->indexdir);
dput(ofs->workdir);
if (ofs->workdir_locked)
@@ -225,8 +228,10 @@ static void ovl_free_fs(struct ovl_fs *ofs)
if (ofs->upperdir_locked)
ovl_inuse_unlock(ofs->upper_mnt->mnt_root);
mntput(ofs->upper_mnt);
- for (i = 0; i < ofs->numlower; i++)
+ for (i = 0; i < ofs->numlower; i++) {
+ iput(ofs->lower_layers[i].trap);
mntput(ofs->lower_layers[i].mnt);
+ }
for (i = 0; i < ofs->numlowerfs; i++)
free_anon_bdev(ofs->lower_fs[i].pseudo_dev);
kfree(ofs->lower_layers);
@@ -984,7 +989,26 @@ static const struct xattr_handler *ovl_xattr_handlers[] = {
NULL
};

-static int ovl_get_upper(struct ovl_fs *ofs, struct path *upperpath)
+static int ovl_setup_trap(struct super_block *sb, struct dentry *dir,
+ struct inode **ptrap, const char *name)
+{
+ struct inode *trap;
+ int err;
+
+ trap = ovl_get_trap_inode(sb, dir);
+ err = PTR_ERR_OR_ZERO(trap);
+ if (err) {
+ if (err == -ELOOP)
+ pr_err("overlayfs: conflicting %s path\n", name);
+ return err;
+ }
+
+ *ptrap = trap;
+ return 0;
+}
+
+static int ovl_get_upper(struct super_block *sb, struct ovl_fs *ofs,
+ struct path *upperpath)
{
struct vfsmount *upper_mnt;
int err;
@@ -1004,6 +1028,11 @@ static int ovl_get_upper(struct ovl_fs *ofs, struct path *upperpath)
if (err)
goto out;

+ err = ovl_setup_trap(sb, upperpath->dentry, &ofs->upperdir_trap,
+ "upperdir");
+ if (err)
+ goto out;
+
upper_mnt = clone_private_mount(upperpath);
err = PTR_ERR(upper_mnt);
if (IS_ERR(upper_mnt)) {
@@ -1030,7 +1059,8 @@ static int ovl_get_upper(struct ovl_fs *ofs, struct path *upperpath)
return err;
}

-static int ovl_make_workdir(struct ovl_fs *ofs, struct path *workpath)
+static int ovl_make_workdir(struct super_block *sb, struct ovl_fs *ofs,
+ struct path *workpath)
{
struct vfsmount *mnt = ofs->upper_mnt;
struct dentry *temp;
@@ -1045,6 +1075,10 @@ static int ovl_make_workdir(struct ovl_fs *ofs, struct path *workpath)
if (!ofs->workdir)
goto out;

+ err = ovl_setup_trap(sb, ofs->workdir, &ofs->workdir_trap, "workdir");
+ if (err)
+ goto out;
+
/*
* Upper should support d_type, else whiteouts are visible. Given
* workdir and upper are on same fs, we can do iterate_dir() on
@@ -1105,7 +1139,8 @@ static int ovl_make_workdir(struct ovl_fs *ofs, struct path *workpath)
return err;
}

-static int ovl_get_workdir(struct ovl_fs *ofs, struct path *upperpath)
+static int ovl_get_workdir(struct super_block *sb, struct ovl_fs *ofs,
+ struct path *upperpath)
{
int err;
struct path workpath = { };
@@ -1136,19 +1171,16 @@ static int ovl_get_workdir(struct ovl_fs *ofs, struct path *upperpath)
pr_warn("overlayfs: workdir is in-use by another mount, accessing files from both mounts will result in undefined behavior.\n");
}

- err = ovl_make_workdir(ofs, &workpath);
- if (err)
- goto out;
+ err = ovl_make_workdir(sb, ofs, &workpath);

- err = 0;
out:
path_put(&workpath);

return err;
}

-static int ovl_get_indexdir(struct ovl_fs *ofs, struct ovl_entry *oe,
- struct path *upperpath)
+static int ovl_get_indexdir(struct super_block *sb, struct ovl_fs *ofs,
+ struct ovl_entry *oe, struct path *upperpath)
{
struct vfsmount *mnt = ofs->upper_mnt;
int err;
@@ -1167,6 +1199,11 @@ static int ovl_get_indexdir(struct ovl_fs *ofs, struct ovl_entry *oe,

ofs->indexdir = ovl_workdir_create(ofs, OVL_INDEXDIR_NAME, true);
if (ofs->indexdir) {
+ err = ovl_setup_trap(sb, ofs->indexdir, &ofs->indexdir_trap,
+ "indexdir");
+ if (err)
+ goto out;
+
/*
* Verify upper root is exclusively associated with index dir.
* Older kernels stored upper fh in "trusted.overlay.origin"
@@ -1226,8 +1263,8 @@ static int ovl_get_fsid(struct ovl_fs *ofs, struct super_block *sb)
return ofs->numlowerfs;
}

-static int ovl_get_lower_layers(struct ovl_fs *ofs, struct path *stack,
- unsigned int numlower)
+static int ovl_get_lower_layers(struct super_block *sb, struct ovl_fs *ofs,
+ struct path *stack, unsigned int numlower)
{
int err;
unsigned int i;
@@ -1245,16 +1282,28 @@ static int ovl_get_lower_layers(struct ovl_fs *ofs, struct path *stack,

for (i = 0; i < numlower; i++) {
struct vfsmount *mnt;
+ struct inode *trap;
int fsid;

err = fsid = ovl_get_fsid(ofs, stack[i].mnt->mnt_sb);
if (err < 0)
goto out;

+ err = -EBUSY;
+ if (ovl_is_inuse(stack[i].dentry)) {
+ pr_err("overlayfs: lowerdir is in-use as upperdir/workdir\n");
+ goto out;
+ }
+
+ err = ovl_setup_trap(sb, stack[i].dentry, &trap, "lowerdir");
+ if (err)
+ goto out;
+
mnt = clone_private_mount(&stack[i]);
err = PTR_ERR(mnt);
if (IS_ERR(mnt)) {
pr_err("overlayfs: failed to clone lowerpath\n");
+ iput(trap);
goto out;
}

@@ -1264,6 +1313,7 @@ static int ovl_get_lower_layers(struct ovl_fs *ofs, struct path *stack,
*/
mnt->mnt_flags |= MNT_READONLY | MNT_NOATIME;

+ ofs->lower_layers[ofs->numlower].trap = trap;
ofs->lower_layers[ofs->numlower].mnt = mnt;
ofs->lower_layers[ofs->numlower].idx = i + 1;
ofs->lower_layers[ofs->numlower].fsid = fsid;
@@ -1358,7 +1408,7 @@ static struct ovl_entry *ovl_get_lowerstack(struct super_block *sb,
goto out_err;
}

- err = ovl_get_lower_layers(ofs, stack, numlower);
+ err = ovl_get_lower_layers(sb, ofs, stack, numlower);
if (err)
goto out_err;

@@ -1390,6 +1440,77 @@ static struct ovl_entry *ovl_get_lowerstack(struct super_block *sb,
goto out;
}

+/*
+ * Check if this layer root is a descendant of:
+ * - another layer of this overlayfs instance
+ * - upper/work dir of any overlayfs instance
+ */
+static int ovl_check_layer(struct super_block *sb, struct dentry *dentry,
+ const char *name)
+{
+ struct dentry *next = dentry, *parent;
+ int err = 0;
+
+ if (!dentry)
+ return 0;
+
+ parent = dget_parent(next);
+
+ /* Walk back ancestors to root (inclusive) looking for traps */
+ while (!err && parent != next) {
+ if (ovl_is_inuse(parent)) {
+ err = -EBUSY;
+ pr_err("overlayfs: %s path overlapping in-use upperdir/workdir\n",
+ name);
+ } else if (ovl_lookup_trap_inode(sb, parent)) {
+ err = -ELOOP;
+ pr_err("overlayfs: overlapping %s path\n", name);
+ }
+ next = parent;
+ parent = dget_parent(next);
+ dput(next);
+ }
+
+ dput(parent);
+
+ return err;
+}
+
+/*
+ * Check if any of the layers or work dirs overlap.
+ */
+static int ovl_check_overlapping_layers(struct super_block *sb,
+ struct ovl_fs *ofs)
+{
+ int i, err;
+
+ if (ofs->upper_mnt) {
+ err = ovl_check_layer(sb, ofs->upper_mnt->mnt_root, "upperdir");
+ if (err)
+ return err;
+
+ /*
+ * Checking workbasedir avoids hitting ovl_is_inuse(parent) of
+ * this instance and covers overlapping work and index dirs,
+ * unless work or index dir have been moved since created inside
+ * workbasedir. In that case, we already have their traps in
+ * inode cache and we will catch that case on lookup.
+ */
+ err = ovl_check_layer(sb, ofs->workbasedir, "workdir");
+ if (err)
+ return err;
+ }
+
+ for (i = 0; i < ofs->numlower; i++) {
+ err = ovl_check_layer(sb, ofs->lower_layers[i].mnt->mnt_root,
+ "lowerdir");
+ if (err)
+ return err;
+ }
+
+ return 0;
+}
+
static int ovl_fill_super(struct super_block *sb, void *data, int silent)
{
struct path upperpath = { };
@@ -1429,17 +1550,20 @@ static int ovl_fill_super(struct super_block *sb, void *data, int silent)
if (ofs->config.xino != OVL_XINO_OFF)
ofs->xino_bits = BITS_PER_LONG - 32;

+ /* alloc/destroy_inode needed for setting up traps in inode cache */
+ sb->s_op = &ovl_super_operations;
+
if (ofs->config.upperdir) {
if (!ofs->config.workdir) {
pr_err("overlayfs: missing 'workdir'\n");
goto out_err;
}

- err = ovl_get_upper(ofs, &upperpath);
+ err = ovl_get_upper(sb, ofs, &upperpath);
if (err)
goto out_err;

- err = ovl_get_workdir(ofs, &upperpath);
+ err = ovl_get_workdir(sb, ofs, &upperpath);
if (err)
goto out_err;

@@ -1460,7 +1584,7 @@ static int ovl_fill_super(struct super_block *sb, void *data, int silent)
sb->s_flags |= SB_RDONLY;

if (!(ovl_force_readonly(ofs)) && ofs->config.index) {
- err = ovl_get_indexdir(ofs, oe, &upperpath);
+ err = ovl_get_indexdir(sb, ofs, oe, &upperpath);
if (err)
goto out_free_oe;

@@ -1473,6 +1597,10 @@ static int ovl_fill_super(struct super_block *sb, void *data, int silent)

}

+ err = ovl_check_overlapping_layers(sb, ofs);
+ if (err)
+ goto out_free_oe;
+
/* Show index=off in /proc/mounts for forced r/o mount */
if (!ofs->indexdir) {
ofs->config.index = false;
@@ -1494,7 +1622,6 @@ static int ovl_fill_super(struct super_block *sb, void *data, int silent)
cap_lower(cred->cap_effective, CAP_SYS_RESOURCE);

sb->s_magic = OVERLAYFS_SUPER_MAGIC;
- sb->s_op = &ovl_super_operations;
sb->s_xattr = ovl_xattr_handlers;
sb->s_fs_info = ofs;
sb->s_flags |= SB_POSIXACL;
diff --git a/fs/overlayfs/util.c b/fs/overlayfs/util.c
index c9a2e3c6d537..db8bdb29b320 100644
--- a/fs/overlayfs/util.c
+++ b/fs/overlayfs/util.c
@@ -653,6 +653,18 @@ void ovl_inuse_unlock(struct dentry *dentry)
}
}

+bool ovl_is_inuse(struct dentry *dentry)
+{
+ struct inode *inode = d_inode(dentry);
+ bool inuse;
+
+ spin_lock(&inode->i_lock);
+ inuse = (inode->i_state & I_OVL_INUSE);
+ spin_unlock(&inode->i_lock);
+
+ return inuse;
+}
+
/*
* Does this overlay dentry need to be indexed on copy up?
*/
diff --git a/include/linux/mmc/host.h b/include/linux/mmc/host.h
index beed7121c781..2ff52de1c2b8 100644
--- a/include/linux/mmc/host.h
+++ b/include/linux/mmc/host.h
@@ -395,6 +395,7 @@ struct mmc_host {
unsigned int retune_now:1; /* do re-tuning at next req */
unsigned int retune_paused:1; /* re-tuning is temporarily disabled */
unsigned int use_blk_mq:1; /* use blk-mq */
+ unsigned int retune_crc_disable:1; /* don't trigger retune upon crc */

int rescan_disable; /* disable card detection */
int rescan_entered; /* used with nonremovable devices */
diff --git a/include/linux/mmc/sdio_func.h b/include/linux/mmc/sdio_func.h
index 97ca105347a6..6905f3f641cc 100644
--- a/include/linux/mmc/sdio_func.h
+++ b/include/linux/mmc/sdio_func.h
@@ -159,4 +159,10 @@ extern void sdio_f0_writeb(struct sdio_func *func, unsigned char b,
extern mmc_pm_flag_t sdio_get_host_pm_caps(struct sdio_func *func);
extern int sdio_set_host_pm_flags(struct sdio_func *func, mmc_pm_flag_t flags);

+extern void sdio_retune_crc_disable(struct sdio_func *func);
+extern void sdio_retune_crc_enable(struct sdio_func *func);
+
+extern void sdio_retune_hold_now(struct sdio_func *func);
+extern void sdio_retune_release(struct sdio_func *func);
+
#endif /* LINUX_MMC_SDIO_FUNC_H */
diff --git a/include/net/bluetooth/hci_core.h b/include/net/bluetooth/hci_core.h
index 1dfb75057580..cc2d0c3b475b 100644
--- a/include/net/bluetooth/hci_core.h
+++ b/include/net/bluetooth/hci_core.h
@@ -182,6 +182,9 @@ struct adv_info {

#define HCI_MAX_SHORT_NAME_LENGTH 10

+/* Min encryption key size to match with SMP */
+#define HCI_MIN_ENC_KEY_SIZE 7
+
/* Default LE RPA expiry time, 15 minutes */
#define HCI_DEFAULT_RPA_TIMEOUT (15 * 60)

diff --git a/include/net/cfg80211.h b/include/net/cfg80211.h
index 4de121e24ce5..67e0a990144a 100644
--- a/include/net/cfg80211.h
+++ b/include/net/cfg80211.h
@@ -3448,7 +3448,8 @@ struct cfg80211_ops {
* on wiphy_new(), but can be changed by the driver if it has a good
* reason to override the default
* @WIPHY_FLAG_4ADDR_AP: supports 4addr mode even on AP (with a single station
- * on a VLAN interface)
+ * on a VLAN interface). This flag also serves an extra purpose of
+ * supporting 4ADDR AP mode on devices which do not support AP/VLAN iftype.
* @WIPHY_FLAG_4ADDR_STATION: supports 4addr mode even as a station
* @WIPHY_FLAG_CONTROL_PORT_PROTOCOL: This device supports setting the
* control port protocol ethertype. The device also honours the
diff --git a/kernel/trace/trace.c b/kernel/trace/trace.c
index 1bd7a758583b..181dba75a203 100644
--- a/kernel/trace/trace.c
+++ b/kernel/trace/trace.c
@@ -8351,12 +8351,8 @@ void ftrace_dump(enum ftrace_dump_mode oops_dump_mode)

cnt++;

- /* reset all but tr, trace, and overruns */
- memset(&iter.seq, 0,
- sizeof(struct trace_iterator) -
- offsetof(struct trace_iterator, seq));
+ trace_iterator_reset(&iter);
iter.iter_flags |= TRACE_FILE_LAT_FMT;
- iter.pos = -1;

if (trace_find_next_entry_inc(&iter) != NULL) {
int ret;
diff --git a/kernel/trace/trace.h b/kernel/trace/trace.h
index 447bd96ee658..d11d7bfc3fa5 100644
--- a/kernel/trace/trace.h
+++ b/kernel/trace/trace.h
@@ -1895,4 +1895,22 @@ static inline void tracer_hardirqs_off(unsigned long a0, unsigned long a1) { }

extern struct trace_iterator *tracepoint_print_iter;

+/*
+ * Reset the state of the trace_iterator so that it can read consumed data.
+ * Normally, the trace_iterator is used for reading the data when it is not
+ * consumed, and must retain state.
+ */
+static __always_inline void trace_iterator_reset(struct trace_iterator *iter)
+{
+ const size_t offset = offsetof(struct trace_iterator, seq);
+
+ /*
+ * Keep gcc from complaining about overwriting more than just one
+ * member in the structure.
+ */
+ memset((char *)iter + offset, 0, sizeof(struct trace_iterator) - offset);
+
+ iter->pos = -1;
+}
+
#endif /* _LINUX_KERNEL_TRACE_H */
diff --git a/kernel/trace/trace_kdb.c b/kernel/trace/trace_kdb.c
index 810d78a8d14c..2905a3dd94c1 100644
--- a/kernel/trace/trace_kdb.c
+++ b/kernel/trace/trace_kdb.c
@@ -41,12 +41,8 @@ static void ftrace_dump_buf(int skip_lines, long cpu_file)

kdb_printf("Dumping ftrace buffer:\n");

- /* reset all but tr, trace, and overruns */
- memset(&iter.seq, 0,
- sizeof(struct trace_iterator) -
- offsetof(struct trace_iterator, seq));
+ trace_iterator_reset(&iter);
iter.iter_flags |= TRACE_FILE_LAT_FMT;
- iter.pos = -1;

if (cpu_file == RING_BUFFER_ALL_CPUS) {
for_each_tracing_cpu(cpu) {
diff --git a/net/bluetooth/hci_conn.c b/net/bluetooth/hci_conn.c
index bd4978ce8c45..15d1cb5aee18 100644
--- a/net/bluetooth/hci_conn.c
+++ b/net/bluetooth/hci_conn.c
@@ -1392,8 +1392,16 @@ int hci_conn_security(struct hci_conn *conn, __u8 sec_level, __u8 auth_type,
return 0;

encrypt:
- if (test_bit(HCI_CONN_ENCRYPT, &conn->flags))
+ if (test_bit(HCI_CONN_ENCRYPT, &conn->flags)) {
+ /* Ensure that the encryption key size has been read,
+ * otherwise stall the upper layer responses.
+ */
+ if (!conn->enc_key_size)
+ return 0;
+
+ /* Nothing else needed, all requirements are met */
return 1;
+ }

hci_conn_encrypt(conn);
return 0;
diff --git a/net/bluetooth/l2cap_core.c b/net/bluetooth/l2cap_core.c
index 2c6eabf294b3..69e3be51a2c3 100644
--- a/net/bluetooth/l2cap_core.c
+++ b/net/bluetooth/l2cap_core.c
@@ -1340,6 +1340,21 @@ static void l2cap_request_info(struct l2cap_conn *conn)
sizeof(req), &req);
}

+static bool l2cap_check_enc_key_size(struct hci_conn *hcon)
+{
+ /* The minimum encryption key size needs to be enforced by the
+ * host stack before establishing any L2CAP connections. The
+ * specification in theory allows a minimum of 1, but to align
+ * BR/EDR and LE transports, a minimum of 7 is chosen.
+ *
+ * This check might also be called for unencrypted connections
+ * that have no key size requirements. Ensure that the link is
+ * actually encrypted before enforcing a key size.
+ */
+ return (!test_bit(HCI_CONN_ENCRYPT, &hcon->flags) ||
+ hcon->enc_key_size > HCI_MIN_ENC_KEY_SIZE);
+}
+
static void l2cap_do_start(struct l2cap_chan *chan)
{
struct l2cap_conn *conn = chan->conn;
@@ -1357,9 +1372,14 @@ static void l2cap_do_start(struct l2cap_chan *chan)
if (!(conn->info_state & L2CAP_INFO_FEAT_MASK_REQ_DONE))
return;

- if (l2cap_chan_check_security(chan, true) &&
- __l2cap_no_conn_pending(chan))
+ if (!l2cap_chan_check_security(chan, true) ||
+ !__l2cap_no_conn_pending(chan))
+ return;
+
+ if (l2cap_check_enc_key_size(conn->hcon))
l2cap_start_connection(chan);
+ else
+ __set_chan_timer(chan, L2CAP_DISC_TIMEOUT);
}

static inline int l2cap_mode_supported(__u8 mode, __u32 feat_mask)
@@ -1438,7 +1458,10 @@ static void l2cap_conn_start(struct l2cap_conn *conn)
continue;
}

- l2cap_start_connection(chan);
+ if (l2cap_check_enc_key_size(conn->hcon))
+ l2cap_start_connection(chan);
+ else
+ l2cap_chan_close(chan, ECONNREFUSED);

} else if (chan->state == BT_CONNECT2) {
struct l2cap_conn_rsp rsp;
@@ -7455,7 +7478,7 @@ static void l2cap_security_cfm(struct hci_conn *hcon, u8 status, u8 encrypt)
}

if (chan->state == BT_CONNECT) {
- if (!status)
+ if (!status && l2cap_check_enc_key_size(hcon))
l2cap_start_connection(chan);
else
__set_chan_timer(chan, L2CAP_DISC_TIMEOUT);
@@ -7464,7 +7487,7 @@ static void l2cap_security_cfm(struct hci_conn *hcon, u8 status, u8 encrypt)
struct l2cap_conn_rsp rsp;
__u16 res, stat;

- if (!status) {
+ if (!status && l2cap_check_enc_key_size(hcon)) {
if (test_bit(FLAG_DEFER_SETUP, &chan->flags)) {
res = L2CAP_CR_PEND;
stat = L2CAP_CS_AUTHOR_PEND;
diff --git a/net/can/af_can.c b/net/can/af_can.c
index 1684ba5b51eb..e386d654116d 100644
--- a/net/can/af_can.c
+++ b/net/can/af_can.c
@@ -105,6 +105,7 @@ EXPORT_SYMBOL(can_ioctl);
static void can_sock_destruct(struct sock *sk)
{
skb_queue_purge(&sk->sk_receive_queue);
+ skb_queue_purge(&sk->sk_error_queue);
}

static const struct can_proto *can_get_proto(int protocol)
diff --git a/net/mac80211/ieee80211_i.h b/net/mac80211/ieee80211_i.h
index 172aeae21ae9..35c6dfa13fa8 100644
--- a/net/mac80211/ieee80211_i.h
+++ b/net/mac80211/ieee80211_i.h
@@ -2183,6 +2183,9 @@ void ieee80211_tdls_cancel_channel_switch(struct wiphy *wiphy,
const u8 *addr);
void ieee80211_teardown_tdls_peers(struct ieee80211_sub_if_data *sdata);
void ieee80211_tdls_chsw_work(struct work_struct *wk);
+void ieee80211_tdls_handle_disconnect(struct ieee80211_sub_if_data *sdata,
+ const u8 *peer, u16 reason);
+const char *ieee80211_get_reason_code_string(u16 reason_code);

extern const struct ethtool_ops ieee80211_ethtool_ops;

diff --git a/net/mac80211/mlme.c b/net/mac80211/mlme.c
index 2ac749c4a6b2..1aaa73fa308e 100644
--- a/net/mac80211/mlme.c
+++ b/net/mac80211/mlme.c
@@ -2868,7 +2868,7 @@ static void ieee80211_rx_mgmt_auth(struct ieee80211_sub_if_data *sdata,
#define case_WLAN(type) \
case WLAN_REASON_##type: return #type

-static const char *ieee80211_get_reason_code_string(u16 reason_code)
+const char *ieee80211_get_reason_code_string(u16 reason_code)
{
switch (reason_code) {
case_WLAN(UNSPECIFIED);
@@ -2933,6 +2933,11 @@ static void ieee80211_rx_mgmt_deauth(struct ieee80211_sub_if_data *sdata,
if (len < 24 + 2)
return;

+ if (!ether_addr_equal(mgmt->bssid, mgmt->sa)) {
+ ieee80211_tdls_handle_disconnect(sdata, mgmt->sa, reason_code);
+ return;
+ }
+
if (ifmgd->associated &&
ether_addr_equal(mgmt->bssid, ifmgd->associated->bssid)) {
const u8 *bssid = ifmgd->associated->bssid;
@@ -2982,6 +2987,11 @@ static void ieee80211_rx_mgmt_disassoc(struct ieee80211_sub_if_data *sdata,

reason_code = le16_to_cpu(mgmt->u.disassoc.reason_code);

+ if (!ether_addr_equal(mgmt->bssid, mgmt->sa)) {
+ ieee80211_tdls_handle_disconnect(sdata, mgmt->sa, reason_code);
+ return;
+ }
+
sdata_info(sdata, "disassociated from %pM (Reason: %u=%s)\n",
mgmt->sa, reason_code,
ieee80211_get_reason_code_string(reason_code));
diff --git a/net/mac80211/rx.c b/net/mac80211/rx.c
index e946ee4f335b..7523d995ea8a 100644
--- a/net/mac80211/rx.c
+++ b/net/mac80211/rx.c
@@ -3752,6 +3752,8 @@ static bool ieee80211_accept_frame(struct ieee80211_rx_data *rx)
case NL80211_IFTYPE_STATION:
if (!bssid && !sdata->u.mgd.use_4addr)
return false;
+ if (ieee80211_is_robust_mgmt_frame(skb) && !rx->sta)
+ return false;
if (multicast)
return true;
return ether_addr_equal(sdata->vif.addr, hdr->addr1);
diff --git a/net/mac80211/tdls.c b/net/mac80211/tdls.c
index 6c647f425e05..67745d1d4c5d 100644
--- a/net/mac80211/tdls.c
+++ b/net/mac80211/tdls.c
@@ -1992,3 +1992,26 @@ void ieee80211_tdls_chsw_work(struct work_struct *wk)
}
rtnl_unlock();
}
+
+void ieee80211_tdls_handle_disconnect(struct ieee80211_sub_if_data *sdata,
+ const u8 *peer, u16 reason)
+{
+ struct ieee80211_sta *sta;
+
+ rcu_read_lock();
+ sta = ieee80211_find_sta(&sdata->vif, peer);
+ if (!sta || !sta->tdls) {
+ rcu_read_unlock();
+ return;
+ }
+ rcu_read_unlock();
+
+ tdls_dbg(sdata, "disconnected from TDLS peer %pM (Reason: %u=%s)\n",
+ peer, reason,
+ ieee80211_get_reason_code_string(reason));
+
+ ieee80211_tdls_oper_request(&sdata->vif, peer,
+ NL80211_TDLS_TEARDOWN,
+ WLAN_REASON_TDLS_TEARDOWN_UNREACHABLE,
+ GFP_ATOMIC);
+}
diff --git a/net/mac80211/util.c b/net/mac80211/util.c
index 3deaa01ebee4..2558a34c9df1 100644
--- a/net/mac80211/util.c
+++ b/net/mac80211/util.c
@@ -3523,7 +3523,9 @@ int ieee80211_check_combinations(struct ieee80211_sub_if_data *sdata,
}

/* Always allow software iftypes */
- if (local->hw.wiphy->software_iftypes & BIT(iftype)) {
+ if (local->hw.wiphy->software_iftypes & BIT(iftype) ||
+ (iftype == NL80211_IFTYPE_AP_VLAN &&
+ local->hw.wiphy->flags & WIPHY_FLAG_4ADDR_AP)) {
if (radar_detect)
return -EINVAL;
return 0;
diff --git a/net/mac80211/wpa.c b/net/mac80211/wpa.c
index 58d0b258b684..5dd48f0a4b1b 100644
--- a/net/mac80211/wpa.c
+++ b/net/mac80211/wpa.c
@@ -1175,7 +1175,7 @@ ieee80211_crypto_aes_gmac_decrypt(struct ieee80211_rx_data *rx)
struct ieee80211_rx_status *status = IEEE80211_SKB_RXCB(skb);
struct ieee80211_key *key = rx->key;
struct ieee80211_mmie_16 *mmie;
- u8 aad[GMAC_AAD_LEN], mic[GMAC_MIC_LEN], ipn[6], nonce[GMAC_NONCE_LEN];
+ u8 aad[GMAC_AAD_LEN], *mic, ipn[6], nonce[GMAC_NONCE_LEN];
struct ieee80211_hdr *hdr = (struct ieee80211_hdr *)skb->data;

if (!ieee80211_is_mgmt(hdr->frame_control))
@@ -1206,13 +1206,18 @@ ieee80211_crypto_aes_gmac_decrypt(struct ieee80211_rx_data *rx)
memcpy(nonce, hdr->addr2, ETH_ALEN);
memcpy(nonce + ETH_ALEN, ipn, 6);

+ mic = kmalloc(GMAC_MIC_LEN, GFP_ATOMIC);
+ if (!mic)
+ return RX_DROP_UNUSABLE;
if (ieee80211_aes_gmac(key->u.aes_gmac.tfm, aad, nonce,
skb->data + 24, skb->len - 24,
mic) < 0 ||
crypto_memneq(mic, mmie->mic, sizeof(mmie->mic))) {
key->u.aes_gmac.icverrors++;
+ kfree(mic);
return RX_DROP_UNUSABLE;
}
+ kfree(mic);
}

memcpy(key->u.aes_gmac.rx_pn, ipn, 6);
diff --git a/net/wireless/core.c b/net/wireless/core.c
index a88551f3bc43..2a46ec3cb72c 100644
--- a/net/wireless/core.c
+++ b/net/wireless/core.c
@@ -498,7 +498,7 @@ struct wiphy *wiphy_new_nm(const struct cfg80211_ops *ops, int sizeof_priv,
&rdev->rfkill_ops, rdev);

if (!rdev->rfkill) {
- kfree(rdev);
+ wiphy_free(&rdev->wiphy);
return NULL;
}

@@ -1335,8 +1335,12 @@ static int cfg80211_netdev_notifier_call(struct notifier_block *nb,
}
break;
case NETDEV_PRE_UP:
- if (!(wdev->wiphy->interface_modes & BIT(wdev->iftype)))
+ if (!(wdev->wiphy->interface_modes & BIT(wdev->iftype)) &&
+ !(wdev->iftype == NL80211_IFTYPE_AP_VLAN &&
+ rdev->wiphy.flags & WIPHY_FLAG_4ADDR_AP &&
+ wdev->use_4addr))
return notifier_from_errno(-EOPNOTSUPP);
+
if (rfkill_blocked(rdev->rfkill))
return notifier_from_errno(-ERFKILL);
break;
diff --git a/net/wireless/nl80211.c b/net/wireless/nl80211.c
index c6711ead5e59..8e2f03ab4cc9 100644
--- a/net/wireless/nl80211.c
+++ b/net/wireless/nl80211.c
@@ -3191,8 +3191,7 @@ static int nl80211_new_interface(struct sk_buff *skb, struct genl_info *info)
return -EINVAL;
}

- if (!rdev->ops->add_virtual_intf ||
- !(rdev->wiphy.interface_modes & (1 << type)))
+ if (!rdev->ops->add_virtual_intf)
return -EOPNOTSUPP;

if ((type == NL80211_IFTYPE_P2P_DEVICE || type == NL80211_IFTYPE_NAN ||
@@ -3211,6 +3210,11 @@ static int nl80211_new_interface(struct sk_buff *skb, struct genl_info *info)
return err;
}

+ if (!(rdev->wiphy.interface_modes & (1 << type)) &&
+ !(type == NL80211_IFTYPE_AP_VLAN && params.use_4addr &&
+ rdev->wiphy.flags & WIPHY_FLAG_4ADDR_AP))
+ return -EOPNOTSUPP;
+
err = nl80211_parse_mon_options(rdev, type, info, &params);
if (err < 0)
return err;
@@ -4607,8 +4611,10 @@ static int nl80211_send_station(struct sk_buff *msg, u32 cmd, u32 portid,
struct nlattr *sinfoattr, *bss_param;

hdr = nl80211hdr_put(msg, portid, seq, flags, cmd);
- if (!hdr)
+ if (!hdr) {
+ cfg80211_sinfo_release_content(sinfo);
return -1;
+ }

if (nla_put_u32(msg, NL80211_ATTR_IFINDEX, dev->ifindex) ||
nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, mac_addr) ||
diff --git a/scripts/checkstack.pl b/scripts/checkstack.pl
index 34414c6efad6..a2c9e7f98e06 100755
--- a/scripts/checkstack.pl
+++ b/scripts/checkstack.pl
@@ -46,7 +46,7 @@ my (@stack, $re, $dre, $x, $xs, $funcre);
$x = "[0-9a-f]"; # hex character
$xs = "[0-9a-f ]"; # hex character or space
$funcre = qr/^$x* <(.*)>:$/;
- if ($arch eq 'aarch64') {
+ if ($arch =~ '^(aarch|arm)64$') {
#ffffffc0006325cc: a9bb7bfd stp x29, x30, [sp, #-80]!
$re = qr/^.*stp.*sp, \#-([0-9]{1,8})\]\!/o;
} elsif ($arch eq 'arm') {
diff --git a/security/apparmor/include/policy.h b/security/apparmor/include/policy.h
index ab64c6b5db5a..28c098fb6208 100644
--- a/security/apparmor/include/policy.h
+++ b/security/apparmor/include/policy.h
@@ -214,7 +214,16 @@ static inline struct aa_profile *aa_get_newest_profile(struct aa_profile *p)
return labels_profile(aa_get_newest_label(&p->label));
}

-#define PROFILE_MEDIATES(P, T) ((P)->policy.start[(unsigned char) (T)])
+static inline unsigned int PROFILE_MEDIATES(struct aa_profile *profile,
+ unsigned char class)
+{
+ if (class <= AA_CLASS_LAST)
+ return profile->policy.start[class];
+ else
+ return aa_dfa_match_len(profile->policy.dfa,
+ profile->policy.start[0], &class, 1);
+}
+
static inline unsigned int PROFILE_MEDIATES_AF(struct aa_profile *profile,
u16 AF) {
unsigned int state = PROFILE_MEDIATES(profile, AA_CLASS_NET);
diff --git a/security/apparmor/policy_unpack.c b/security/apparmor/policy_unpack.c
index 21cb384d712a..088ea2ac8570 100644
--- a/security/apparmor/policy_unpack.c
+++ b/security/apparmor/policy_unpack.c
@@ -276,7 +276,7 @@ static bool unpack_nameX(struct aa_ext *e, enum aa_code code, const char *name)
char *tag = NULL;
size_t size = unpack_u16_chunk(e, &tag);
/* if a name is specified it must match. otherwise skip tag */
- if (name && (!size || strcmp(name, tag)))
+ if (name && (!size || tag[size-1] != '\0' || strcmp(name, tag)))
goto fail;
} else if (name) {
/* if a name is specified and there is no name tag fail */
diff --git a/tools/objtool/check.c b/tools/objtool/check.c
index 02a47e365e52..ecf5fc77f50b 100644
--- a/tools/objtool/check.c
+++ b/tools/objtool/check.c
@@ -839,7 +839,7 @@ static int add_switch_table(struct objtool_file *file, struct instruction *insn,
struct symbol *pfunc = insn->func->pfunc;
unsigned int prev_offset = 0;

- list_for_each_entry_from(rela, &file->rodata->rela->rela_list, list) {
+ list_for_each_entry_from(rela, &table->rela_sec->rela_list, list) {
if (rela == next_table)
break;

@@ -929,6 +929,7 @@ static struct rela *find_switch_table(struct objtool_file *file,
{
struct rela *text_rela, *rodata_rela;
struct instruction *orig_insn = insn;
+ struct section *rodata_sec;
unsigned long table_offset;

/*
@@ -956,10 +957,13 @@ static struct rela *find_switch_table(struct objtool_file *file,
/* look for a relocation which references .rodata */
text_rela = find_rela_by_dest_range(insn->sec, insn->offset,
insn->len);
- if (!text_rela || text_rela->sym != file->rodata->sym)
+ if (!text_rela || text_rela->sym->type != STT_SECTION ||
+ !text_rela->sym->sec->rodata)
continue;

table_offset = text_rela->addend;
+ rodata_sec = text_rela->sym->sec;
+
if (text_rela->type == R_X86_64_PC32)
table_offset += 4;

@@ -967,10 +971,10 @@ static struct rela *find_switch_table(struct objtool_file *file,
* Make sure the .rodata address isn't associated with a
* symbol. gcc jump tables are anonymous data.
*/
- if (find_symbol_containing(file->rodata, table_offset))
+ if (find_symbol_containing(rodata_sec, table_offset))
continue;

- rodata_rela = find_rela_by_dest(file->rodata, table_offset);
+ rodata_rela = find_rela_by_dest(rodata_sec, table_offset);
if (rodata_rela) {
/*
* Use of RIP-relative switch jumps is quite rare, and
@@ -1055,7 +1059,7 @@ static int add_switch_table_alts(struct objtool_file *file)
struct symbol *func;
int ret;

- if (!file->rodata || !file->rodata->rela)
+ if (!file->rodata)
return 0;

for_each_sec(file, sec) {
@@ -1201,10 +1205,33 @@ static int read_retpoline_hints(struct objtool_file *file)
return 0;
}

+static void mark_rodata(struct objtool_file *file)
+{
+ struct section *sec;
+ bool found = false;
+
+ /*
+ * This searches for the .rodata section or multiple .rodata.func_name
+ * sections if -fdata-sections is being used. The .str.1.1 and .str.1.8
+ * rodata sections are ignored as they don't contain jump tables.
+ */
+ for_each_sec(file, sec) {
+ if (!strncmp(sec->name, ".rodata", 7) &&
+ !strstr(sec->name, ".str1.")) {
+ sec->rodata = true;
+ found = true;
+ }
+ }
+
+ file->rodata = found;
+}
+
static int decode_sections(struct objtool_file *file)
{
int ret;

+ mark_rodata(file);
+
ret = decode_instructions(file);
if (ret)
return ret;
@@ -2176,7 +2203,6 @@ int check(const char *_objname, bool orc)
INIT_LIST_HEAD(&file.insn_list);
hash_init(file.insn_hash);
file.whitelist = find_section_by_name(file.elf, ".discard.func_stack_frame_non_standard");
- file.rodata = find_section_by_name(file.elf, ".rodata");
file.c_file = find_section_by_name(file.elf, ".comment");
file.ignore_unreachables = no_unreachable;
file.hints = false;
diff --git a/tools/objtool/check.h b/tools/objtool/check.h
index 95700a2bcb7c..e6e8a655b556 100644
--- a/tools/objtool/check.h
+++ b/tools/objtool/check.h
@@ -60,8 +60,8 @@ struct objtool_file {
struct elf *elf;
struct list_head insn_list;
DECLARE_HASHTABLE(insn_hash, 16);
- struct section *rodata, *whitelist;
- bool ignore_unreachables, c_file, hints;
+ struct section *whitelist;
+ bool ignore_unreachables, c_file, hints, rodata;
};

int check(const char *objname, bool orc);
diff --git a/tools/objtool/elf.c b/tools/objtool/elf.c
index b75d004f6482..abed594a9653 100644
--- a/tools/objtool/elf.c
+++ b/tools/objtool/elf.c
@@ -390,6 +390,7 @@ static int read_relas(struct elf *elf)
rela->offset = rela->rela.r_offset;
symndx = GELF_R_SYM(rela->rela.r_info);
rela->sym = find_symbol_by_index(elf, symndx);
+ rela->rela_sec = sec;
if (!rela->sym) {
WARN("can't find rela entry symbol %d for %s",
symndx, sec->name);
diff --git a/tools/objtool/elf.h b/tools/objtool/elf.h
index de5cd2ddded9..bc97ed86b9cd 100644
--- a/tools/objtool/elf.h
+++ b/tools/objtool/elf.h
@@ -48,7 +48,7 @@ struct section {
char *name;
int idx;
unsigned int len;
- bool changed, text;
+ bool changed, text, rodata;
};

struct symbol {
@@ -68,6 +68,7 @@ struct rela {
struct list_head list;
struct hlist_node hash;
GElf_Rela rela;
+ struct section *rela_sec;
struct symbol *sym;
unsigned int type;
unsigned long offset;
diff --git a/tools/testing/selftests/cgroup/test_core.c b/tools/testing/selftests/cgroup/test_core.c
index be59f9c34ea2..79053a4f4783 100644
--- a/tools/testing/selftests/cgroup/test_core.c
+++ b/tools/testing/selftests/cgroup/test_core.c
@@ -198,7 +198,7 @@ static int test_cgcore_no_internal_process_constraint_on_threads(const char *roo
char *parent = NULL, *child = NULL;

if (cg_read_strstr(root, "cgroup.controllers", "cpu") ||
- cg_read_strstr(root, "cgroup.subtree_control", "cpu")) {
+ cg_write(root, "cgroup.subtree_control", "+cpu")) {
ret = KSFT_SKIP;
goto cleanup;
}
@@ -376,6 +376,11 @@ int main(int argc, char *argv[])

if (cg_find_unified_root(root, sizeof(root)))
ksft_exit_skip("cgroup v2 isn't mounted\n");
+
+ if (cg_read_strstr(root, "cgroup.subtree_control", "memory"))
+ if (cg_write(root, "cgroup.subtree_control", "+memory"))
+ ksft_exit_skip("Failed to set memory controller\n");
+
for (i = 0; i < ARRAY_SIZE(tests); i++) {
switch (tests[i].fn(root)) {
case KSFT_PASS:
diff --git a/tools/testing/selftests/cgroup/test_memcontrol.c b/tools/testing/selftests/cgroup/test_memcontrol.c
index 6f339882a6ca..c19a97dd02d4 100644
--- a/tools/testing/selftests/cgroup/test_memcontrol.c
+++ b/tools/testing/selftests/cgroup/test_memcontrol.c
@@ -1205,6 +1205,10 @@ int main(int argc, char **argv)
if (cg_read_strstr(root, "cgroup.controllers", "memory"))
ksft_exit_skip("memory controller isn't available\n");

+ if (cg_read_strstr(root, "cgroup.subtree_control", "memory"))
+ if (cg_write(root, "cgroup.subtree_control", "+memory"))
+ ksft_exit_skip("Failed to set memory controller\n");
+
for (i = 0; i < ARRAY_SIZE(tests); i++) {
switch (tests[i].fn(root)) {
case KSFT_PASS:
diff --git a/tools/testing/selftests/vm/Makefile b/tools/testing/selftests/vm/Makefile
index dc68340a6a96..2cf3dc49bd03 100644
--- a/tools/testing/selftests/vm/Makefile
+++ b/tools/testing/selftests/vm/Makefile
@@ -24,6 +24,8 @@ TEST_GEN_FILES += virtual_address_range

TEST_PROGS := run_vmtests

+TEST_FILES := test_vmalloc.sh
+
KSFT_KHDR_INSTALL := 1
include ../lib.mk

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