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Message-Id: <1633528441247213@kroah.com>
Date: Wed, 6 Oct 2021 15:54:02 +0200
From: Greg Kroah-Hartman <gregkh@...uxfoundation.org>
To: linux-kernel@...r.kernel.org, akpm@...ux-foundation.org,
torvalds@...ux-foundation.org, stable@...r.kernel.org
Cc: lwn@....net, jslaby@...e.cz,
Greg Kroah-Hartman <gregkh@...uxfoundation.org>
Subject: Re: Linux 4.19.209
diff --git a/Makefile b/Makefile
index a4c252640983..a144a7117a1b 100644
--- a/Makefile
+++ b/Makefile
@@ -1,7 +1,7 @@
# SPDX-License-Identifier: GPL-2.0
VERSION = 4
PATCHLEVEL = 19
-SUBLEVEL = 208
+SUBLEVEL = 209
EXTRAVERSION =
NAME = "People's Front"
diff --git a/arch/alpha/include/asm/io.h b/arch/alpha/include/asm/io.h
index 0bba9e991189..d4eab4f20249 100644
--- a/arch/alpha/include/asm/io.h
+++ b/arch/alpha/include/asm/io.h
@@ -61,7 +61,7 @@ extern inline void set_hae(unsigned long new_hae)
* Change virtual addresses to physical addresses and vv.
*/
#ifdef USE_48_BIT_KSEG
-static inline unsigned long virt_to_phys(void *address)
+static inline unsigned long virt_to_phys(volatile void *address)
{
return (unsigned long)address - IDENT_ADDR;
}
@@ -71,7 +71,7 @@ static inline void * phys_to_virt(unsigned long address)
return (void *) (address + IDENT_ADDR);
}
#else
-static inline unsigned long virt_to_phys(void *address)
+static inline unsigned long virt_to_phys(volatile void *address)
{
unsigned long phys = (unsigned long)address;
@@ -112,7 +112,7 @@ static inline dma_addr_t __deprecated isa_page_to_bus(struct page *page)
extern unsigned long __direct_map_base;
extern unsigned long __direct_map_size;
-static inline unsigned long __deprecated virt_to_bus(void *address)
+static inline unsigned long __deprecated virt_to_bus(volatile void *address)
{
unsigned long phys = virt_to_phys(address);
unsigned long bus = phys + __direct_map_base;
diff --git a/arch/arm/include/asm/ftrace.h b/arch/arm/include/asm/ftrace.h
index 9e842ff41768..faeb6b1c0089 100644
--- a/arch/arm/include/asm/ftrace.h
+++ b/arch/arm/include/asm/ftrace.h
@@ -19,6 +19,9 @@ struct dyn_arch_ftrace {
#ifdef CONFIG_OLD_MCOUNT
bool old_mcount;
#endif
+#ifdef CONFIG_ARM_MODULE_PLTS
+ struct module *mod;
+#endif
};
static inline unsigned long ftrace_call_adjust(unsigned long addr)
diff --git a/arch/arm/include/asm/insn.h b/arch/arm/include/asm/insn.h
index f20e08ac85ae..5475cbf9fb6b 100644
--- a/arch/arm/include/asm/insn.h
+++ b/arch/arm/include/asm/insn.h
@@ -13,18 +13,18 @@ arm_gen_nop(void)
}
unsigned long
-__arm_gen_branch(unsigned long pc, unsigned long addr, bool link);
+__arm_gen_branch(unsigned long pc, unsigned long addr, bool link, bool warn);
static inline unsigned long
arm_gen_branch(unsigned long pc, unsigned long addr)
{
- return __arm_gen_branch(pc, addr, false);
+ return __arm_gen_branch(pc, addr, false, true);
}
static inline unsigned long
-arm_gen_branch_link(unsigned long pc, unsigned long addr)
+arm_gen_branch_link(unsigned long pc, unsigned long addr, bool warn)
{
- return __arm_gen_branch(pc, addr, true);
+ return __arm_gen_branch(pc, addr, true, warn);
}
#endif
diff --git a/arch/arm/include/asm/module.h b/arch/arm/include/asm/module.h
index 9e81b7c498d8..6b36656eed83 100644
--- a/arch/arm/include/asm/module.h
+++ b/arch/arm/include/asm/module.h
@@ -19,8 +19,18 @@ enum {
};
#endif
+#define PLT_ENT_STRIDE L1_CACHE_BYTES
+#define PLT_ENT_COUNT (PLT_ENT_STRIDE / sizeof(u32))
+#define PLT_ENT_SIZE (sizeof(struct plt_entries) / PLT_ENT_COUNT)
+
+struct plt_entries {
+ u32 ldr[PLT_ENT_COUNT];
+ u32 lit[PLT_ENT_COUNT];
+};
+
struct mod_plt_sec {
struct elf32_shdr *plt;
+ struct plt_entries *plt_ent;
int plt_count;
};
diff --git a/arch/arm/kernel/ftrace.c b/arch/arm/kernel/ftrace.c
index ee673c09aa6c..51839250e49a 100644
--- a/arch/arm/kernel/ftrace.c
+++ b/arch/arm/kernel/ftrace.c
@@ -96,9 +96,10 @@ int ftrace_arch_code_modify_post_process(void)
return 0;
}
-static unsigned long ftrace_call_replace(unsigned long pc, unsigned long addr)
+static unsigned long ftrace_call_replace(unsigned long pc, unsigned long addr,
+ bool warn)
{
- return arm_gen_branch_link(pc, addr);
+ return arm_gen_branch_link(pc, addr, warn);
}
static int ftrace_modify_code(unsigned long pc, unsigned long old,
@@ -137,14 +138,14 @@ int ftrace_update_ftrace_func(ftrace_func_t func)
int ret;
pc = (unsigned long)&ftrace_call;
- new = ftrace_call_replace(pc, (unsigned long)func);
+ new = ftrace_call_replace(pc, (unsigned long)func, true);
ret = ftrace_modify_code(pc, 0, new, false);
#ifdef CONFIG_DYNAMIC_FTRACE_WITH_REGS
if (!ret) {
pc = (unsigned long)&ftrace_regs_call;
- new = ftrace_call_replace(pc, (unsigned long)func);
+ new = ftrace_call_replace(pc, (unsigned long)func, true);
ret = ftrace_modify_code(pc, 0, new, false);
}
@@ -153,7 +154,7 @@ int ftrace_update_ftrace_func(ftrace_func_t func)
#ifdef CONFIG_OLD_MCOUNT
if (!ret) {
pc = (unsigned long)&ftrace_call_old;
- new = ftrace_call_replace(pc, (unsigned long)func);
+ new = ftrace_call_replace(pc, (unsigned long)func, true);
ret = ftrace_modify_code(pc, 0, new, false);
}
@@ -166,10 +167,22 @@ int ftrace_make_call(struct dyn_ftrace *rec, unsigned long addr)
{
unsigned long new, old;
unsigned long ip = rec->ip;
+ unsigned long aaddr = adjust_address(rec, addr);
+ struct module *mod = NULL;
+
+#ifdef CONFIG_ARM_MODULE_PLTS
+ mod = rec->arch.mod;
+#endif
old = ftrace_nop_replace(rec);
- new = ftrace_call_replace(ip, adjust_address(rec, addr));
+ new = ftrace_call_replace(ip, aaddr, !mod);
+#ifdef CONFIG_ARM_MODULE_PLTS
+ if (!new && mod) {
+ aaddr = get_module_plt(mod, ip, aaddr);
+ new = ftrace_call_replace(ip, aaddr, true);
+ }
+#endif
return ftrace_modify_code(rec->ip, old, new, true);
}
@@ -182,9 +195,9 @@ int ftrace_modify_call(struct dyn_ftrace *rec, unsigned long old_addr,
unsigned long new, old;
unsigned long ip = rec->ip;
- old = ftrace_call_replace(ip, adjust_address(rec, old_addr));
+ old = ftrace_call_replace(ip, adjust_address(rec, old_addr), true);
- new = ftrace_call_replace(ip, adjust_address(rec, addr));
+ new = ftrace_call_replace(ip, adjust_address(rec, addr), true);
return ftrace_modify_code(rec->ip, old, new, true);
}
@@ -194,12 +207,29 @@ int ftrace_modify_call(struct dyn_ftrace *rec, unsigned long old_addr,
int ftrace_make_nop(struct module *mod,
struct dyn_ftrace *rec, unsigned long addr)
{
+ unsigned long aaddr = adjust_address(rec, addr);
unsigned long ip = rec->ip;
unsigned long old;
unsigned long new;
int ret;
- old = ftrace_call_replace(ip, adjust_address(rec, addr));
+#ifdef CONFIG_ARM_MODULE_PLTS
+ /* mod is only supplied during module loading */
+ if (!mod)
+ mod = rec->arch.mod;
+ else
+ rec->arch.mod = mod;
+#endif
+
+ old = ftrace_call_replace(ip, aaddr,
+ !IS_ENABLED(CONFIG_ARM_MODULE_PLTS) || !mod);
+#ifdef CONFIG_ARM_MODULE_PLTS
+ if (!old && mod) {
+ aaddr = get_module_plt(mod, ip, aaddr);
+ old = ftrace_call_replace(ip, aaddr, true);
+ }
+#endif
+
new = ftrace_nop_replace(rec);
ret = ftrace_modify_code(ip, old, new, true);
@@ -207,7 +237,7 @@ int ftrace_make_nop(struct module *mod,
if (ret == -EINVAL && addr == MCOUNT_ADDR) {
rec->arch.old_mcount = true;
- old = ftrace_call_replace(ip, adjust_address(rec, addr));
+ old = ftrace_call_replace(ip, adjust_address(rec, addr), true);
new = ftrace_nop_replace(rec);
ret = ftrace_modify_code(ip, old, new, true);
}
diff --git a/arch/arm/kernel/insn.c b/arch/arm/kernel/insn.c
index 2e844b70386b..db0acbb7d7a0 100644
--- a/arch/arm/kernel/insn.c
+++ b/arch/arm/kernel/insn.c
@@ -3,8 +3,9 @@
#include <linux/kernel.h>
#include <asm/opcodes.h>
-static unsigned long
-__arm_gen_branch_thumb2(unsigned long pc, unsigned long addr, bool link)
+static unsigned long __arm_gen_branch_thumb2(unsigned long pc,
+ unsigned long addr, bool link,
+ bool warn)
{
unsigned long s, j1, j2, i1, i2, imm10, imm11;
unsigned long first, second;
@@ -12,7 +13,7 @@ __arm_gen_branch_thumb2(unsigned long pc, unsigned long addr, bool link)
offset = (long)addr - (long)(pc + 4);
if (offset < -16777216 || offset > 16777214) {
- WARN_ON_ONCE(1);
+ WARN_ON_ONCE(warn);
return 0;
}
@@ -33,8 +34,8 @@ __arm_gen_branch_thumb2(unsigned long pc, unsigned long addr, bool link)
return __opcode_thumb32_compose(first, second);
}
-static unsigned long
-__arm_gen_branch_arm(unsigned long pc, unsigned long addr, bool link)
+static unsigned long __arm_gen_branch_arm(unsigned long pc, unsigned long addr,
+ bool link, bool warn)
{
unsigned long opcode = 0xea000000;
long offset;
@@ -44,7 +45,7 @@ __arm_gen_branch_arm(unsigned long pc, unsigned long addr, bool link)
offset = (long)addr - (long)(pc + 8);
if (unlikely(offset < -33554432 || offset > 33554428)) {
- WARN_ON_ONCE(1);
+ WARN_ON_ONCE(warn);
return 0;
}
@@ -54,10 +55,10 @@ __arm_gen_branch_arm(unsigned long pc, unsigned long addr, bool link)
}
unsigned long
-__arm_gen_branch(unsigned long pc, unsigned long addr, bool link)
+__arm_gen_branch(unsigned long pc, unsigned long addr, bool link, bool warn)
{
if (IS_ENABLED(CONFIG_THUMB2_KERNEL))
- return __arm_gen_branch_thumb2(pc, addr, link);
+ return __arm_gen_branch_thumb2(pc, addr, link, warn);
else
- return __arm_gen_branch_arm(pc, addr, link);
+ return __arm_gen_branch_arm(pc, addr, link, warn);
}
diff --git a/arch/arm/kernel/module-plts.c b/arch/arm/kernel/module-plts.c
index 3d0c2e4dda1d..ed0e09cc735f 100644
--- a/arch/arm/kernel/module-plts.c
+++ b/arch/arm/kernel/module-plts.c
@@ -7,6 +7,7 @@
*/
#include <linux/elf.h>
+#include <linux/ftrace.h>
#include <linux/kernel.h>
#include <linux/module.h>
#include <linux/sort.h>
@@ -14,10 +15,6 @@
#include <asm/cache.h>
#include <asm/opcodes.h>
-#define PLT_ENT_STRIDE L1_CACHE_BYTES
-#define PLT_ENT_COUNT (PLT_ENT_STRIDE / sizeof(u32))
-#define PLT_ENT_SIZE (sizeof(struct plt_entries) / PLT_ENT_COUNT)
-
#ifdef CONFIG_THUMB2_KERNEL
#define PLT_ENT_LDR __opcode_to_mem_thumb32(0xf8dff000 | \
(PLT_ENT_STRIDE - 4))
@@ -26,9 +23,11 @@
(PLT_ENT_STRIDE - 8))
#endif
-struct plt_entries {
- u32 ldr[PLT_ENT_COUNT];
- u32 lit[PLT_ENT_COUNT];
+static const u32 fixed_plts[] = {
+#ifdef CONFIG_DYNAMIC_FTRACE
+ FTRACE_ADDR,
+ MCOUNT_ADDR,
+#endif
};
static bool in_init(const struct module *mod, unsigned long loc)
@@ -36,14 +35,40 @@ static bool in_init(const struct module *mod, unsigned long loc)
return loc - (u32)mod->init_layout.base < mod->init_layout.size;
}
+static void prealloc_fixed(struct mod_plt_sec *pltsec, struct plt_entries *plt)
+{
+ int i;
+
+ if (!ARRAY_SIZE(fixed_plts) || pltsec->plt_count)
+ return;
+ pltsec->plt_count = ARRAY_SIZE(fixed_plts);
+
+ for (i = 0; i < ARRAY_SIZE(plt->ldr); ++i)
+ plt->ldr[i] = PLT_ENT_LDR;
+
+ BUILD_BUG_ON(sizeof(fixed_plts) > sizeof(plt->lit));
+ memcpy(plt->lit, fixed_plts, sizeof(fixed_plts));
+}
+
u32 get_module_plt(struct module *mod, unsigned long loc, Elf32_Addr val)
{
struct mod_plt_sec *pltsec = !in_init(mod, loc) ? &mod->arch.core :
&mod->arch.init;
+ struct plt_entries *plt;
+ int idx;
+
+ /* cache the address, ELF header is available only during module load */
+ if (!pltsec->plt_ent)
+ pltsec->plt_ent = (struct plt_entries *)pltsec->plt->sh_addr;
+ plt = pltsec->plt_ent;
- struct plt_entries *plt = (struct plt_entries *)pltsec->plt->sh_addr;
- int idx = 0;
+ prealloc_fixed(pltsec, plt);
+
+ for (idx = 0; idx < ARRAY_SIZE(fixed_plts); ++idx)
+ if (plt->lit[idx] == val)
+ return (u32)&plt->ldr[idx];
+ idx = 0;
/*
* Look for an existing entry pointing to 'val'. Given that the
* relocations are sorted, this will be the last entry we allocated.
@@ -191,8 +216,8 @@ static unsigned int count_plts(const Elf32_Sym *syms, Elf32_Addr base,
int module_frob_arch_sections(Elf_Ehdr *ehdr, Elf_Shdr *sechdrs,
char *secstrings, struct module *mod)
{
- unsigned long core_plts = 0;
- unsigned long init_plts = 0;
+ unsigned long core_plts = ARRAY_SIZE(fixed_plts);
+ unsigned long init_plts = ARRAY_SIZE(fixed_plts);
Elf32_Shdr *s, *sechdrs_end = sechdrs + ehdr->e_shnum;
Elf32_Sym *syms = NULL;
@@ -247,6 +272,7 @@ int module_frob_arch_sections(Elf_Ehdr *ehdr, Elf_Shdr *sechdrs,
mod->arch.core.plt->sh_size = round_up(core_plts * PLT_ENT_SIZE,
sizeof(struct plt_entries));
mod->arch.core.plt_count = 0;
+ mod->arch.core.plt_ent = NULL;
mod->arch.init.plt->sh_type = SHT_NOBITS;
mod->arch.init.plt->sh_flags = SHF_EXECINSTR | SHF_ALLOC;
@@ -254,6 +280,7 @@ int module_frob_arch_sections(Elf_Ehdr *ehdr, Elf_Shdr *sechdrs,
mod->arch.init.plt->sh_size = round_up(init_plts * PLT_ENT_SIZE,
sizeof(struct plt_entries));
mod->arch.init.plt_count = 0;
+ mod->arch.init.plt_ent = NULL;
pr_debug("%s: plt=%x, init.plt=%x\n", __func__,
mod->arch.core.plt->sh_size, mod->arch.init.plt->sh_size);
diff --git a/arch/arm64/boot/dts/marvell/armada-37xx.dtsi b/arch/arm64/boot/dts/marvell/armada-37xx.dtsi
index 1844fb8605f0..fca78eb334b1 100644
--- a/arch/arm64/boot/dts/marvell/armada-37xx.dtsi
+++ b/arch/arm64/boot/dts/marvell/armada-37xx.dtsi
@@ -376,8 +376,15 @@
#interrupt-cells = <1>;
msi-parent = <&pcie0>;
msi-controller;
- ranges = <0x82000000 0 0xe8000000 0 0xe8000000 0 0x1000000 /* Port 0 MEM */
- 0x81000000 0 0xe9000000 0 0xe9000000 0 0x10000>; /* Port 0 IO*/
+ /*
+ * The 128 MiB address range [0xe8000000-0xf0000000] is
+ * dedicated for PCIe and can be assigned to 8 windows
+ * with size a power of two. Use one 64 KiB window for
+ * IO at the end and the remaining seven windows
+ * (totaling 127 MiB) for MEM.
+ */
+ ranges = <0x82000000 0 0xe8000000 0 0xe8000000 0 0x07f00000 /* Port 0 MEM */
+ 0x81000000 0 0xefff0000 0 0xefff0000 0 0x00010000>; /* Port 0 IO */
interrupt-map-mask = <0 0 0 7>;
interrupt-map = <0 0 0 1 &pcie_intc 0>,
<0 0 0 2 &pcie_intc 1>,
diff --git a/arch/arm64/kernel/process.c b/arch/arm64/kernel/process.c
index d6a49bb07a5f..1945b8096a06 100644
--- a/arch/arm64/kernel/process.c
+++ b/arch/arm64/kernel/process.c
@@ -61,7 +61,7 @@
#ifdef CONFIG_STACKPROTECTOR
#include <linux/stackprotector.h>
-unsigned long __stack_chk_guard __read_mostly;
+unsigned long __stack_chk_guard __ro_after_init;
EXPORT_SYMBOL(__stack_chk_guard);
#endif
diff --git a/arch/m68k/include/asm/raw_io.h b/arch/m68k/include/asm/raw_io.h
index 85761255dde5..6a03aef53980 100644
--- a/arch/m68k/include/asm/raw_io.h
+++ b/arch/m68k/include/asm/raw_io.h
@@ -17,21 +17,21 @@
* two accesses to memory, which may be undesirable for some devices.
*/
#define in_8(addr) \
- ({ u8 __v = (*(__force volatile u8 *) (addr)); __v; })
+ ({ u8 __v = (*(__force volatile u8 *) (unsigned long)(addr)); __v; })
#define in_be16(addr) \
- ({ u16 __v = (*(__force volatile u16 *) (addr)); __v; })
+ ({ u16 __v = (*(__force volatile u16 *) (unsigned long)(addr)); __v; })
#define in_be32(addr) \
- ({ u32 __v = (*(__force volatile u32 *) (addr)); __v; })
+ ({ u32 __v = (*(__force volatile u32 *) (unsigned long)(addr)); __v; })
#define in_le16(addr) \
- ({ u16 __v = le16_to_cpu(*(__force volatile __le16 *) (addr)); __v; })
+ ({ u16 __v = le16_to_cpu(*(__force volatile __le16 *) (unsigned long)(addr)); __v; })
#define in_le32(addr) \
- ({ u32 __v = le32_to_cpu(*(__force volatile __le32 *) (addr)); __v; })
+ ({ u32 __v = le32_to_cpu(*(__force volatile __le32 *) (unsigned long)(addr)); __v; })
-#define out_8(addr,b) (void)((*(__force volatile u8 *) (addr)) = (b))
-#define out_be16(addr,w) (void)((*(__force volatile u16 *) (addr)) = (w))
-#define out_be32(addr,l) (void)((*(__force volatile u32 *) (addr)) = (l))
-#define out_le16(addr,w) (void)((*(__force volatile __le16 *) (addr)) = cpu_to_le16(w))
-#define out_le32(addr,l) (void)((*(__force volatile __le32 *) (addr)) = cpu_to_le32(l))
+#define out_8(addr,b) (void)((*(__force volatile u8 *) (unsigned long)(addr)) = (b))
+#define out_be16(addr,w) (void)((*(__force volatile u16 *) (unsigned long)(addr)) = (w))
+#define out_be32(addr,l) (void)((*(__force volatile u32 *) (unsigned long)(addr)) = (l))
+#define out_le16(addr,w) (void)((*(__force volatile __le16 *) (unsigned long)(addr)) = cpu_to_le16(w))
+#define out_le32(addr,l) (void)((*(__force volatile __le32 *) (unsigned long)(addr)) = cpu_to_le32(l))
#define raw_inb in_8
#define raw_inw in_be16
diff --git a/arch/parisc/include/asm/page.h b/arch/parisc/include/asm/page.h
index af00fe9bf846..c631a8fd856a 100644
--- a/arch/parisc/include/asm/page.h
+++ b/arch/parisc/include/asm/page.h
@@ -179,7 +179,7 @@ extern int npmem_ranges;
#include <asm-generic/getorder.h>
#include <asm/pdc.h>
-#define PAGE0 ((struct zeropage *)__PAGE_OFFSET)
+#define PAGE0 ((struct zeropage *)absolute_pointer(__PAGE_OFFSET))
/* DEFINITION OF THE ZERO-PAGE (PAG0) */
/* based on work by Jason Eckhardt (jason@...ator.com) */
diff --git a/arch/sparc/kernel/mdesc.c b/arch/sparc/kernel/mdesc.c
index 51028abe5e90..ecec6a616e0d 100644
--- a/arch/sparc/kernel/mdesc.c
+++ b/arch/sparc/kernel/mdesc.c
@@ -40,6 +40,7 @@ struct mdesc_hdr {
u32 node_sz; /* node block size */
u32 name_sz; /* name block size */
u32 data_sz; /* data block size */
+ char data[];
} __attribute__((aligned(16)));
struct mdesc_elem {
@@ -613,7 +614,7 @@ EXPORT_SYMBOL(mdesc_get_node_info);
static struct mdesc_elem *node_block(struct mdesc_hdr *mdesc)
{
- return (struct mdesc_elem *) (mdesc + 1);
+ return (struct mdesc_elem *) mdesc->data;
}
static void *name_block(struct mdesc_hdr *mdesc)
diff --git a/arch/x86/include/asm/kvmclock.h b/arch/x86/include/asm/kvmclock.h
index eceea9299097..6c5765192102 100644
--- a/arch/x86/include/asm/kvmclock.h
+++ b/arch/x86/include/asm/kvmclock.h
@@ -2,6 +2,20 @@
#ifndef _ASM_X86_KVM_CLOCK_H
#define _ASM_X86_KVM_CLOCK_H
+#include <linux/percpu.h>
+
extern struct clocksource kvm_clock;
+DECLARE_PER_CPU(struct pvclock_vsyscall_time_info *, hv_clock_per_cpu);
+
+static inline struct pvclock_vcpu_time_info *this_cpu_pvti(void)
+{
+ return &this_cpu_read(hv_clock_per_cpu)->pvti;
+}
+
+static inline struct pvclock_vsyscall_time_info *this_cpu_hvclock(void)
+{
+ return this_cpu_read(hv_clock_per_cpu);
+}
+
#endif /* _ASM_X86_KVM_CLOCK_H */
diff --git a/arch/x86/kernel/kvmclock.c b/arch/x86/kernel/kvmclock.c
index 2ec202cb9dfd..6752d3768d77 100644
--- a/arch/x86/kernel/kvmclock.c
+++ b/arch/x86/kernel/kvmclock.c
@@ -64,18 +64,9 @@ early_param("no-kvmclock-vsyscall", parse_no_kvmclock_vsyscall);
static struct pvclock_vsyscall_time_info
hv_clock_boot[HVC_BOOT_ARRAY_SIZE] __bss_decrypted __aligned(PAGE_SIZE);
static struct pvclock_wall_clock wall_clock __bss_decrypted;
-static DEFINE_PER_CPU(struct pvclock_vsyscall_time_info *, hv_clock_per_cpu);
static struct pvclock_vsyscall_time_info *hvclock_mem;
-
-static inline struct pvclock_vcpu_time_info *this_cpu_pvti(void)
-{
- return &this_cpu_read(hv_clock_per_cpu)->pvti;
-}
-
-static inline struct pvclock_vsyscall_time_info *this_cpu_hvclock(void)
-{
- return this_cpu_read(hv_clock_per_cpu);
-}
+DEFINE_PER_CPU(struct pvclock_vsyscall_time_info *, hv_clock_per_cpu);
+EXPORT_PER_CPU_SYMBOL_GPL(hv_clock_per_cpu);
/*
* The wallclock is the time of day when we booted. Since then, some time may
diff --git a/arch/x86/xen/enlighten_pv.c b/arch/x86/xen/enlighten_pv.c
index 7966136352b5..8f1ff8dad2ce 100644
--- a/arch/x86/xen/enlighten_pv.c
+++ b/arch/x86/xen/enlighten_pv.c
@@ -720,8 +720,8 @@ static void xen_write_idt_entry(gate_desc *dt, int entrynum, const gate_desc *g)
preempt_enable();
}
-static void xen_convert_trap_info(const struct desc_ptr *desc,
- struct trap_info *traps)
+static unsigned xen_convert_trap_info(const struct desc_ptr *desc,
+ struct trap_info *traps, bool full)
{
unsigned in, out, count;
@@ -731,17 +731,18 @@ static void xen_convert_trap_info(const struct desc_ptr *desc,
for (in = out = 0; in < count; in++) {
gate_desc *entry = (gate_desc *)(desc->address) + in;
- if (cvt_gate_to_trap(in, entry, &traps[out]))
+ if (cvt_gate_to_trap(in, entry, &traps[out]) || full)
out++;
}
- traps[out].address = 0;
+
+ return out;
}
void xen_copy_trap_info(struct trap_info *traps)
{
const struct desc_ptr *desc = this_cpu_ptr(&idt_desc);
- xen_convert_trap_info(desc, traps);
+ xen_convert_trap_info(desc, traps, true);
}
/* Load a new IDT into Xen. In principle this can be per-CPU, so we
@@ -751,6 +752,7 @@ static void xen_load_idt(const struct desc_ptr *desc)
{
static DEFINE_SPINLOCK(lock);
static struct trap_info traps[257];
+ unsigned out;
trace_xen_cpu_load_idt(desc);
@@ -758,7 +760,8 @@ static void xen_load_idt(const struct desc_ptr *desc)
memcpy(this_cpu_ptr(&idt_desc), desc, sizeof(idt_desc));
- xen_convert_trap_info(desc, traps);
+ out = xen_convert_trap_info(desc, traps, false);
+ memset(&traps[out], 0, sizeof(traps[0]));
xen_mc_flush();
if (HYPERVISOR_set_trap_table(traps))
diff --git a/block/bfq-iosched.c b/block/bfq-iosched.c
index c8c94e8e0f72..b2bad345c523 100644
--- a/block/bfq-iosched.c
+++ b/block/bfq-iosched.c
@@ -2137,15 +2137,6 @@ bfq_setup_merge(struct bfq_queue *bfqq, struct bfq_queue *new_bfqq)
* are likely to increase the throughput.
*/
bfqq->new_bfqq = new_bfqq;
- /*
- * The above assignment schedules the following redirections:
- * each time some I/O for bfqq arrives, the process that
- * generated that I/O is disassociated from bfqq and
- * associated with new_bfqq. Here we increases new_bfqq->ref
- * in advance, adding the number of processes that are
- * expected to be associated with new_bfqq as they happen to
- * issue I/O.
- */
new_bfqq->ref += process_refs;
return new_bfqq;
}
@@ -2205,10 +2196,6 @@ bfq_setup_cooperator(struct bfq_data *bfqd, struct bfq_queue *bfqq,
{
struct bfq_queue *in_service_bfqq, *new_bfqq;
- /* if a merge has already been setup, then proceed with that first */
- if (bfqq->new_bfqq)
- return bfqq->new_bfqq;
-
/*
* Prevent bfqq from being merged if it has been created too
* long ago. The idea is that true cooperating processes, and
@@ -2223,6 +2210,9 @@ bfq_setup_cooperator(struct bfq_data *bfqd, struct bfq_queue *bfqq,
if (bfq_too_late_for_merging(bfqq))
return NULL;
+ if (bfqq->new_bfqq)
+ return bfqq->new_bfqq;
+
if (!io_struct || unlikely(bfqq == &bfqd->oom_bfqq))
return NULL;
diff --git a/drivers/cpufreq/cpufreq_governor_attr_set.c b/drivers/cpufreq/cpufreq_governor_attr_set.c
index 52841f807a7e..45fdf30cade3 100644
--- a/drivers/cpufreq/cpufreq_governor_attr_set.c
+++ b/drivers/cpufreq/cpufreq_governor_attr_set.c
@@ -77,8 +77,8 @@ unsigned int gov_attr_set_put(struct gov_attr_set *attr_set, struct list_head *l
if (count)
return count;
- kobject_put(&attr_set->kobj);
mutex_destroy(&attr_set->update_lock);
+ kobject_put(&attr_set->kobj);
return 0;
}
EXPORT_SYMBOL_GPL(gov_attr_set_put);
diff --git a/drivers/crypto/ccp/ccp-ops.c b/drivers/crypto/ccp/ccp-ops.c
index 20ca9c9e109e..453d27d2a4ff 100644
--- a/drivers/crypto/ccp/ccp-ops.c
+++ b/drivers/crypto/ccp/ccp-ops.c
@@ -783,7 +783,7 @@ ccp_run_aes_gcm_cmd(struct ccp_cmd_queue *cmd_q, struct ccp_cmd *cmd)
in_place ? DMA_BIDIRECTIONAL
: DMA_TO_DEVICE);
if (ret)
- goto e_ctx;
+ goto e_aad;
if (in_place) {
dst = src;
@@ -868,7 +868,7 @@ ccp_run_aes_gcm_cmd(struct ccp_cmd_queue *cmd_q, struct ccp_cmd *cmd)
op.u.aes.size = 0;
ret = cmd_q->ccp->vdata->perform->aes(&op);
if (ret)
- goto e_dst;
+ goto e_final_wa;
if (aes->action == CCP_AES_ACTION_ENCRYPT) {
/* Put the ciphered tag after the ciphertext. */
@@ -878,17 +878,19 @@ ccp_run_aes_gcm_cmd(struct ccp_cmd_queue *cmd_q, struct ccp_cmd *cmd)
ret = ccp_init_dm_workarea(&tag, cmd_q, authsize,
DMA_BIDIRECTIONAL);
if (ret)
- goto e_tag;
+ goto e_final_wa;
ret = ccp_set_dm_area(&tag, 0, p_tag, 0, authsize);
- if (ret)
- goto e_tag;
+ if (ret) {
+ ccp_dm_free(&tag);
+ goto e_final_wa;
+ }
ret = crypto_memneq(tag.address, final_wa.address,
authsize) ? -EBADMSG : 0;
ccp_dm_free(&tag);
}
-e_tag:
+e_final_wa:
ccp_dm_free(&final_wa);
e_dst:
diff --git a/drivers/edac/synopsys_edac.c b/drivers/edac/synopsys_edac.c
index 0c9c59e2b5a3..ba9de54a701e 100644
--- a/drivers/edac/synopsys_edac.c
+++ b/drivers/edac/synopsys_edac.c
@@ -371,7 +371,7 @@ static int synps_edac_init_csrows(struct mem_ctl_info *mci)
for (j = 0; j < csi->nr_channels; j++) {
dimm = csi->channels[j]->dimm;
- dimm->edac_mode = EDAC_FLAG_SECDED;
+ dimm->edac_mode = EDAC_SECDED;
dimm->mtype = synps_edac_get_mtype(priv->baseaddr);
dimm->nr_pages = (size >> PAGE_SHIFT) / csi->nr_channels;
dimm->grain = SYNPS_EDAC_ERR_GRAIN;
diff --git a/drivers/fpga/machxo2-spi.c b/drivers/fpga/machxo2-spi.c
index a582e0000c97..fa76239f979b 100644
--- a/drivers/fpga/machxo2-spi.c
+++ b/drivers/fpga/machxo2-spi.c
@@ -223,8 +223,10 @@ static int machxo2_write_init(struct fpga_manager *mgr,
goto fail;
get_status(spi, &status);
- if (test_bit(FAIL, &status))
+ if (test_bit(FAIL, &status)) {
+ ret = -EINVAL;
goto fail;
+ }
dump_status_reg(&status);
spi_message_init(&msg);
@@ -310,6 +312,7 @@ static int machxo2_write_complete(struct fpga_manager *mgr,
dump_status_reg(&status);
if (!test_bit(DONE, &status)) {
machxo2_cleanup(mgr);
+ ret = -EINVAL;
goto fail;
}
@@ -331,6 +334,7 @@ static int machxo2_write_complete(struct fpga_manager *mgr,
break;
if (++refreshloop == MACHXO2_MAX_REFRESH_LOOP) {
machxo2_cleanup(mgr);
+ ret = -EINVAL;
goto fail;
}
} while (1);
diff --git a/drivers/gpio/gpio-uniphier.c b/drivers/gpio/gpio-uniphier.c
index 7fdac9060979..c72ec3ddf90b 100644
--- a/drivers/gpio/gpio-uniphier.c
+++ b/drivers/gpio/gpio-uniphier.c
@@ -197,7 +197,7 @@ static void uniphier_gpio_irq_mask(struct irq_data *data)
uniphier_gpio_reg_update(priv, UNIPHIER_GPIO_IRQ_EN, mask, 0);
- return irq_chip_mask_parent(data);
+ irq_chip_mask_parent(data);
}
static void uniphier_gpio_irq_unmask(struct irq_data *data)
@@ -207,7 +207,7 @@ static void uniphier_gpio_irq_unmask(struct irq_data *data)
uniphier_gpio_reg_update(priv, UNIPHIER_GPIO_IRQ_EN, mask, mask);
- return irq_chip_unmask_parent(data);
+ irq_chip_unmask_parent(data);
}
static int uniphier_gpio_irq_set_type(struct irq_data *data, unsigned int type)
diff --git a/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.c b/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.c
index 62a2f0491117..ed02bb6b2cd0 100644
--- a/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.c
+++ b/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.c
@@ -412,6 +412,7 @@ static int amdgpu_dm_init(struct amdgpu_device *adev)
init_data.asic_id.pci_revision_id = adev->rev_id;
init_data.asic_id.hw_internal_rev = adev->external_rev_id;
+ init_data.asic_id.chip_id = adev->pdev->device;
init_data.asic_id.vram_width = adev->gmc.vram_width;
/* TODO: initialize init_data.asic_id.vram_type here!!!! */
diff --git a/drivers/hid/hid-betopff.c b/drivers/hid/hid-betopff.c
index 69cfc8dc6af1..9b60efe6ec44 100644
--- a/drivers/hid/hid-betopff.c
+++ b/drivers/hid/hid-betopff.c
@@ -59,15 +59,22 @@ static int betopff_init(struct hid_device *hid)
{
struct betopff_device *betopff;
struct hid_report *report;
- struct hid_input *hidinput =
- list_first_entry(&hid->inputs, struct hid_input, list);
+ struct hid_input *hidinput;
struct list_head *report_list =
&hid->report_enum[HID_OUTPUT_REPORT].report_list;
- struct input_dev *dev = hidinput->input;
+ struct input_dev *dev;
int field_count = 0;
int error;
int i, j;
+ if (list_empty(&hid->inputs)) {
+ hid_err(hid, "no inputs found\n");
+ return -ENODEV;
+ }
+
+ hidinput = list_first_entry(&hid->inputs, struct hid_input, list);
+ dev = hidinput->input;
+
if (list_empty(report_list)) {
hid_err(hid, "no output reports found\n");
return -ENODEV;
diff --git a/drivers/hid/usbhid/hid-core.c b/drivers/hid/usbhid/hid-core.c
index 6b6db57b49d6..e28227040c64 100644
--- a/drivers/hid/usbhid/hid-core.c
+++ b/drivers/hid/usbhid/hid-core.c
@@ -506,7 +506,7 @@ static void hid_ctrl(struct urb *urb)
if (unplug) {
usbhid->ctrltail = usbhid->ctrlhead;
- } else {
+ } else if (usbhid->ctrlhead != usbhid->ctrltail) {
usbhid->ctrltail = (usbhid->ctrltail + 1) & (HID_CONTROL_FIFO_SIZE - 1);
if (usbhid->ctrlhead != usbhid->ctrltail &&
@@ -1224,9 +1224,20 @@ static void usbhid_stop(struct hid_device *hid)
mutex_lock(&usbhid->mutex);
clear_bit(HID_STARTED, &usbhid->iofl);
+
spin_lock_irq(&usbhid->lock); /* Sync with error and led handlers */
set_bit(HID_DISCONNECTED, &usbhid->iofl);
+ while (usbhid->ctrltail != usbhid->ctrlhead) {
+ if (usbhid->ctrl[usbhid->ctrltail].dir == USB_DIR_OUT) {
+ kfree(usbhid->ctrl[usbhid->ctrltail].raw_report);
+ usbhid->ctrl[usbhid->ctrltail].raw_report = NULL;
+ }
+
+ usbhid->ctrltail = (usbhid->ctrltail + 1) &
+ (HID_CONTROL_FIFO_SIZE - 1);
+ }
spin_unlock_irq(&usbhid->lock);
+
usb_kill_urb(usbhid->urbin);
usb_kill_urb(usbhid->urbout);
usb_kill_urb(usbhid->urbctrl);
diff --git a/drivers/hwmon/mlxreg-fan.c b/drivers/hwmon/mlxreg-fan.c
index d8fa4bea4bc8..e57b0c5119ce 100644
--- a/drivers/hwmon/mlxreg-fan.c
+++ b/drivers/hwmon/mlxreg-fan.c
@@ -307,8 +307,8 @@ static int mlxreg_fan_set_cur_state(struct thermal_cooling_device *cdev,
{
struct mlxreg_fan *fan = cdev->devdata;
unsigned long cur_state;
+ int i, config = 0;
u32 regval;
- int i;
int err;
/*
@@ -321,6 +321,12 @@ static int mlxreg_fan_set_cur_state(struct thermal_cooling_device *cdev,
* overwritten.
*/
if (state >= MLXREG_FAN_SPEED_MIN && state <= MLXREG_FAN_SPEED_MAX) {
+ /*
+ * This is configuration change, which is only supported through sysfs.
+ * For configuration non-zero value is to be returned to avoid thermal
+ * statistics update.
+ */
+ config = 1;
state -= MLXREG_FAN_MAX_STATE;
for (i = 0; i < state; i++)
fan->cooling_levels[i] = state;
@@ -335,7 +341,7 @@ static int mlxreg_fan_set_cur_state(struct thermal_cooling_device *cdev,
cur_state = MLXREG_FAN_PWM_DUTY2STATE(regval);
if (state < cur_state)
- return 0;
+ return config;
state = cur_state;
}
@@ -351,7 +357,7 @@ static int mlxreg_fan_set_cur_state(struct thermal_cooling_device *cdev,
dev_err(fan->dev, "Failed to write PWM duty\n");
return err;
}
- return 0;
+ return config;
}
static const struct thermal_cooling_device_ops mlxreg_fan_cooling_ops = {
diff --git a/drivers/hwmon/tmp421.c b/drivers/hwmon/tmp421.c
index ceb3db6f3fdd..cdd01a848301 100644
--- a/drivers/hwmon/tmp421.c
+++ b/drivers/hwmon/tmp421.c
@@ -109,23 +109,17 @@ struct tmp421_data {
s16 temp[4];
};
-static int temp_from_s16(s16 reg)
+static int temp_from_raw(u16 reg, bool extended)
{
/* Mask out status bits */
int temp = reg & ~0xf;
- return (temp * 1000 + 128) / 256;
-}
-
-static int temp_from_u16(u16 reg)
-{
- /* Mask out status bits */
- int temp = reg & ~0xf;
-
- /* Add offset for extended temperature range. */
- temp -= 64 * 256;
+ if (extended)
+ temp = temp - 64 * 256;
+ else
+ temp = (s16)temp;
- return (temp * 1000 + 128) / 256;
+ return DIV_ROUND_CLOSEST(temp * 1000, 256);
}
static struct tmp421_data *tmp421_update_device(struct device *dev)
@@ -162,17 +156,15 @@ static int tmp421_read(struct device *dev, enum hwmon_sensor_types type,
switch (attr) {
case hwmon_temp_input:
- if (tmp421->config & TMP421_CONFIG_RANGE)
- *val = temp_from_u16(tmp421->temp[channel]);
- else
- *val = temp_from_s16(tmp421->temp[channel]);
+ *val = temp_from_raw(tmp421->temp[channel],
+ tmp421->config & TMP421_CONFIG_RANGE);
return 0;
case hwmon_temp_fault:
/*
- * The OPEN bit signals a fault. This is bit 0 of the temperature
- * register (low byte).
+ * Any of OPEN or /PVLD bits indicate a hardware mulfunction
+ * and the conversion result may be incorrect
*/
- *val = tmp421->temp[channel] & 0x01;
+ *val = !!(tmp421->temp[channel] & 0x03);
return 0;
default:
return -EOPNOTSUPP;
@@ -185,11 +177,8 @@ static umode_t tmp421_is_visible(const void *data, enum hwmon_sensor_types type,
{
switch (attr) {
case hwmon_temp_fault:
- if (channel == 0)
- return 0;
- return S_IRUGO;
case hwmon_temp_input:
- return S_IRUGO;
+ return 0444;
default:
return 0;
}
diff --git a/drivers/ipack/devices/ipoctal.c b/drivers/ipack/devices/ipoctal.c
index 75dd15d66df6..f558aeb8f888 100644
--- a/drivers/ipack/devices/ipoctal.c
+++ b/drivers/ipack/devices/ipoctal.c
@@ -38,6 +38,7 @@ struct ipoctal_channel {
unsigned int pointer_read;
unsigned int pointer_write;
struct tty_port tty_port;
+ bool tty_registered;
union scc2698_channel __iomem *regs;
union scc2698_block __iomem *block_regs;
unsigned int board_id;
@@ -86,22 +87,34 @@ static int ipoctal_port_activate(struct tty_port *port, struct tty_struct *tty)
return 0;
}
-static int ipoctal_open(struct tty_struct *tty, struct file *file)
+static int ipoctal_install(struct tty_driver *driver, struct tty_struct *tty)
{
struct ipoctal_channel *channel = dev_get_drvdata(tty->dev);
struct ipoctal *ipoctal = chan_to_ipoctal(channel, tty->index);
- int err;
-
- tty->driver_data = channel;
+ int res;
if (!ipack_get_carrier(ipoctal->dev))
return -EBUSY;
- err = tty_port_open(&channel->tty_port, tty, file);
- if (err)
- ipack_put_carrier(ipoctal->dev);
+ res = tty_standard_install(driver, tty);
+ if (res)
+ goto err_put_carrier;
+
+ tty->driver_data = channel;
+
+ return 0;
+
+err_put_carrier:
+ ipack_put_carrier(ipoctal->dev);
+
+ return res;
+}
+
+static int ipoctal_open(struct tty_struct *tty, struct file *file)
+{
+ struct ipoctal_channel *channel = tty->driver_data;
- return err;
+ return tty_port_open(&channel->tty_port, tty, file);
}
static void ipoctal_reset_stats(struct ipoctal_stats *stats)
@@ -269,7 +282,6 @@ static int ipoctal_inst_slot(struct ipoctal *ipoctal, unsigned int bus_nr,
int res;
int i;
struct tty_driver *tty;
- char name[20];
struct ipoctal_channel *channel;
struct ipack_region *region;
void __iomem *addr;
@@ -360,8 +372,11 @@ static int ipoctal_inst_slot(struct ipoctal *ipoctal, unsigned int bus_nr,
/* Fill struct tty_driver with ipoctal data */
tty->owner = THIS_MODULE;
tty->driver_name = KBUILD_MODNAME;
- sprintf(name, KBUILD_MODNAME ".%d.%d.", bus_nr, slot);
- tty->name = name;
+ tty->name = kasprintf(GFP_KERNEL, KBUILD_MODNAME ".%d.%d.", bus_nr, slot);
+ if (!tty->name) {
+ res = -ENOMEM;
+ goto err_put_driver;
+ }
tty->major = 0;
tty->minor_start = 0;
@@ -377,8 +392,7 @@ static int ipoctal_inst_slot(struct ipoctal *ipoctal, unsigned int bus_nr,
res = tty_register_driver(tty);
if (res) {
dev_err(&ipoctal->dev->dev, "Can't register tty driver.\n");
- put_tty_driver(tty);
- return res;
+ goto err_free_name;
}
/* Save struct tty_driver for use it when uninstalling the device */
@@ -389,7 +403,9 @@ static int ipoctal_inst_slot(struct ipoctal *ipoctal, unsigned int bus_nr,
channel = &ipoctal->channel[i];
tty_port_init(&channel->tty_port);
- tty_port_alloc_xmit_buf(&channel->tty_port);
+ res = tty_port_alloc_xmit_buf(&channel->tty_port);
+ if (res)
+ continue;
channel->tty_port.ops = &ipoctal_tty_port_ops;
ipoctal_reset_stats(&channel->stats);
@@ -397,13 +413,15 @@ static int ipoctal_inst_slot(struct ipoctal *ipoctal, unsigned int bus_nr,
spin_lock_init(&channel->lock);
channel->pointer_read = 0;
channel->pointer_write = 0;
- tty_dev = tty_port_register_device(&channel->tty_port, tty, i, NULL);
+ tty_dev = tty_port_register_device_attr(&channel->tty_port, tty,
+ i, NULL, channel, NULL);
if (IS_ERR(tty_dev)) {
dev_err(&ipoctal->dev->dev, "Failed to register tty device.\n");
+ tty_port_free_xmit_buf(&channel->tty_port);
tty_port_destroy(&channel->tty_port);
continue;
}
- dev_set_drvdata(tty_dev, channel);
+ channel->tty_registered = true;
}
/*
@@ -415,6 +433,13 @@ static int ipoctal_inst_slot(struct ipoctal *ipoctal, unsigned int bus_nr,
ipoctal_irq_handler, ipoctal);
return 0;
+
+err_free_name:
+ kfree(tty->name);
+err_put_driver:
+ put_tty_driver(tty);
+
+ return res;
}
static inline int ipoctal_copy_write_buffer(struct ipoctal_channel *channel,
@@ -655,6 +680,7 @@ static void ipoctal_cleanup(struct tty_struct *tty)
static const struct tty_operations ipoctal_fops = {
.ioctl = NULL,
+ .install = ipoctal_install,
.open = ipoctal_open,
.close = ipoctal_close,
.write = ipoctal_write_tty,
@@ -697,12 +723,17 @@ static void __ipoctal_remove(struct ipoctal *ipoctal)
for (i = 0; i < NR_CHANNELS; i++) {
struct ipoctal_channel *channel = &ipoctal->channel[i];
+
+ if (!channel->tty_registered)
+ continue;
+
tty_unregister_device(ipoctal->tty_drv, i);
tty_port_free_xmit_buf(&channel->tty_port);
tty_port_destroy(&channel->tty_port);
}
tty_unregister_driver(ipoctal->tty_drv);
+ kfree(ipoctal->tty_drv->name);
put_tty_driver(ipoctal->tty_drv);
kfree(ipoctal);
}
diff --git a/drivers/irqchip/Kconfig b/drivers/irqchip/Kconfig
index 8cb6800dbdfb..9d3812cd668e 100644
--- a/drivers/irqchip/Kconfig
+++ b/drivers/irqchip/Kconfig
@@ -357,6 +357,7 @@ config MESON_IRQ_GPIO
config GOLDFISH_PIC
bool "Goldfish programmable interrupt controller"
depends on MIPS && (GOLDFISH || COMPILE_TEST)
+ select GENERIC_IRQ_CHIP
select IRQ_DOMAIN
help
Say yes here to enable Goldfish interrupt controller driver used
diff --git a/drivers/irqchip/irq-gic-v3-its.c b/drivers/irqchip/irq-gic-v3-its.c
index cd58c123f547..b55dff1aa50b 100644
--- a/drivers/irqchip/irq-gic-v3-its.c
+++ b/drivers/irqchip/irq-gic-v3-its.c
@@ -2996,7 +2996,7 @@ static int its_vpe_irq_domain_alloc(struct irq_domain *domain, unsigned int virq
if (err) {
if (i > 0)
- its_vpe_irq_domain_free(domain, virq, i - 1);
+ its_vpe_irq_domain_free(domain, virq, i);
its_lpi_free(bitmap, base, nr_ids);
its_free_prop_table(vprop_page);
diff --git a/drivers/mcb/mcb-core.c b/drivers/mcb/mcb-core.c
index bb5c5692dedc..118d27ee31c2 100644
--- a/drivers/mcb/mcb-core.c
+++ b/drivers/mcb/mcb-core.c
@@ -280,8 +280,8 @@ struct mcb_bus *mcb_alloc_bus(struct device *carrier)
bus_nr = ida_simple_get(&mcb_ida, 0, 0, GFP_KERNEL);
if (bus_nr < 0) {
- rc = bus_nr;
- goto err_free;
+ kfree(bus);
+ return ERR_PTR(bus_nr);
}
bus->bus_nr = bus_nr;
@@ -296,12 +296,12 @@ struct mcb_bus *mcb_alloc_bus(struct device *carrier)
dev_set_name(&bus->dev, "mcb:%d", bus_nr);
rc = device_add(&bus->dev);
if (rc)
- goto err_free;
+ goto err_put;
return bus;
-err_free:
- put_device(carrier);
- kfree(bus);
+
+err_put:
+ put_device(&bus->dev);
return ERR_PTR(rc);
}
EXPORT_SYMBOL_GPL(mcb_alloc_bus);
diff --git a/drivers/md/md.c b/drivers/md/md.c
index fae6a983ceee..7e0477e883c7 100644
--- a/drivers/md/md.c
+++ b/drivers/md/md.c
@@ -5401,10 +5401,6 @@ static int md_alloc(dev_t dev, char *name)
*/
disk->flags |= GENHD_FL_EXT_DEVT;
mddev->gendisk = disk;
- /* As soon as we call add_disk(), another thread could get
- * through to md_open, so make sure it doesn't get too far
- */
- mutex_lock(&mddev->open_mutex);
add_disk(disk);
error = kobject_add(&mddev->kobj, &disk_to_dev(disk)->kobj, "%s", "md");
@@ -5419,7 +5415,6 @@ static int md_alloc(dev_t dev, char *name)
if (mddev->kobj.sd &&
sysfs_create_group(&mddev->kobj, &md_bitmap_group))
pr_debug("pointless warning\n");
- mutex_unlock(&mddev->open_mutex);
abort:
mutex_unlock(&disks_mutex);
if (!error && mddev->kobj.sd) {
diff --git a/drivers/net/ethernet/broadcom/bnxt/bnxt.c b/drivers/net/ethernet/broadcom/bnxt/bnxt.c
index 55827ac65a15..5e30299bcf64 100644
--- a/drivers/net/ethernet/broadcom/bnxt/bnxt.c
+++ b/drivers/net/ethernet/broadcom/bnxt/bnxt.c
@@ -294,7 +294,7 @@ static bool bnxt_txr_netif_try_stop_queue(struct bnxt *bp,
* netif_tx_queue_stopped().
*/
smp_mb();
- if (bnxt_tx_avail(bp, txr) > bp->tx_wake_thresh) {
+ if (bnxt_tx_avail(bp, txr) >= bp->tx_wake_thresh) {
netif_tx_wake_queue(txq);
return false;
}
@@ -625,7 +625,7 @@ static void bnxt_tx_int(struct bnxt *bp, struct bnxt_napi *bnapi, int nr_pkts)
smp_mb();
if (unlikely(netif_tx_queue_stopped(txq)) &&
- bnxt_tx_avail(bp, txr) > bp->tx_wake_thresh &&
+ bnxt_tx_avail(bp, txr) >= bp->tx_wake_thresh &&
READ_ONCE(txr->dev_state) != BNXT_DEV_STATE_CLOSING)
netif_tx_wake_queue(txq);
}
@@ -1909,7 +1909,7 @@ static int bnxt_poll_work(struct bnxt *bp, struct bnxt_napi *bnapi, int budget)
if (TX_CMP_TYPE(txcmp) == CMP_TYPE_TX_L2_CMP) {
tx_pkts++;
/* return full budget so NAPI will complete. */
- if (unlikely(tx_pkts > bp->tx_wake_thresh)) {
+ if (unlikely(tx_pkts >= bp->tx_wake_thresh)) {
rx_pkts = budget;
raw_cons = NEXT_RAW_CMP(raw_cons);
break;
@@ -2712,7 +2712,7 @@ static int bnxt_init_tx_rings(struct bnxt *bp)
u16 i;
bp->tx_wake_thresh = max_t(int, bp->tx_ring_size / 2,
- MAX_SKB_FRAGS + 1);
+ BNXT_MIN_TX_DESC_CNT);
for (i = 0; i < bp->tx_nr_rings; i++) {
struct bnxt_tx_ring_info *txr = &bp->tx_ring[i];
diff --git a/drivers/net/ethernet/broadcom/bnxt/bnxt.h b/drivers/net/ethernet/broadcom/bnxt/bnxt.h
index f3f5484c43e4..5c1c3a0ed928 100644
--- a/drivers/net/ethernet/broadcom/bnxt/bnxt.h
+++ b/drivers/net/ethernet/broadcom/bnxt/bnxt.h
@@ -484,6 +484,11 @@ struct rx_tpa_end_cmp_ext {
#define BNXT_MAX_RX_JUM_DESC_CNT (RX_DESC_CNT * MAX_RX_AGG_PAGES - 1)
#define BNXT_MAX_TX_DESC_CNT (TX_DESC_CNT * MAX_TX_PAGES - 1)
+/* Minimum TX BDs for a TX packet with MAX_SKB_FRAGS + 1. We need one extra
+ * BD because the first TX BD is always a long BD.
+ */
+#define BNXT_MIN_TX_DESC_CNT (MAX_SKB_FRAGS + 2)
+
#define RX_RING(x) (((x) & ~(RX_DESC_CNT - 1)) >> (BNXT_PAGE_SHIFT - 4))
#define RX_IDX(x) ((x) & (RX_DESC_CNT - 1))
diff --git a/drivers/net/ethernet/broadcom/bnxt/bnxt_ethtool.c b/drivers/net/ethernet/broadcom/bnxt/bnxt_ethtool.c
index 511240e8246f..e75a47a9f511 100644
--- a/drivers/net/ethernet/broadcom/bnxt/bnxt_ethtool.c
+++ b/drivers/net/ethernet/broadcom/bnxt/bnxt_ethtool.c
@@ -446,7 +446,7 @@ static int bnxt_set_ringparam(struct net_device *dev,
if ((ering->rx_pending > BNXT_MAX_RX_DESC_CNT) ||
(ering->tx_pending > BNXT_MAX_TX_DESC_CNT) ||
- (ering->tx_pending <= MAX_SKB_FRAGS))
+ (ering->tx_pending < BNXT_MIN_TX_DESC_CNT))
return -EINVAL;
if (netif_running(dev))
diff --git a/drivers/net/ethernet/cadence/macb_pci.c b/drivers/net/ethernet/cadence/macb_pci.c
index 248a8fc45069..f06fddf9919b 100644
--- a/drivers/net/ethernet/cadence/macb_pci.c
+++ b/drivers/net/ethernet/cadence/macb_pci.c
@@ -123,9 +123,9 @@ static void macb_remove(struct pci_dev *pdev)
struct platform_device *plat_dev = pci_get_drvdata(pdev);
struct macb_platform_data *plat_data = dev_get_platdata(&plat_dev->dev);
- platform_device_unregister(plat_dev);
clk_unregister(plat_data->pclk);
clk_unregister(plat_data->hclk);
+ platform_device_unregister(plat_dev);
}
static const struct pci_device_id dev_id_table[] = {
diff --git a/drivers/net/ethernet/i825xx/82596.c b/drivers/net/ethernet/i825xx/82596.c
index d719668a6684..8efcec305fc5 100644
--- a/drivers/net/ethernet/i825xx/82596.c
+++ b/drivers/net/ethernet/i825xx/82596.c
@@ -1155,7 +1155,7 @@ struct net_device * __init i82596_probe(int unit)
err = -ENODEV;
goto out;
}
- memcpy(eth_addr, (void *) 0xfffc1f2c, ETH_ALEN); /* YUCK! Get addr from NOVRAM */
+ memcpy(eth_addr, absolute_pointer(0xfffc1f2c), ETH_ALEN); /* YUCK! Get addr from NOVRAM */
dev->base_addr = MVME_I596_BASE;
dev->irq = (unsigned) MVME16x_IRQ_I596;
goto found;
diff --git a/drivers/net/ethernet/intel/e100.c b/drivers/net/ethernet/intel/e100.c
index bf64fab38385..ba5b515c86e2 100644
--- a/drivers/net/ethernet/intel/e100.c
+++ b/drivers/net/ethernet/intel/e100.c
@@ -2433,11 +2433,15 @@ static void e100_get_drvinfo(struct net_device *netdev,
sizeof(info->bus_info));
}
-#define E100_PHY_REGS 0x1C
+#define E100_PHY_REGS 0x1D
static int e100_get_regs_len(struct net_device *netdev)
{
struct nic *nic = netdev_priv(netdev);
- return 1 + E100_PHY_REGS + sizeof(nic->mem->dump_buf);
+
+ /* We know the number of registers, and the size of the dump buffer.
+ * Calculate the total size in bytes.
+ */
+ return (1 + E100_PHY_REGS) * sizeof(u32) + sizeof(nic->mem->dump_buf);
}
static void e100_get_regs(struct net_device *netdev,
@@ -2451,14 +2455,18 @@ static void e100_get_regs(struct net_device *netdev,
buff[0] = ioread8(&nic->csr->scb.cmd_hi) << 24 |
ioread8(&nic->csr->scb.cmd_lo) << 16 |
ioread16(&nic->csr->scb.status);
- for (i = E100_PHY_REGS; i >= 0; i--)
- buff[1 + E100_PHY_REGS - i] =
- mdio_read(netdev, nic->mii.phy_id, i);
+ for (i = 0; i < E100_PHY_REGS; i++)
+ /* Note that we read the registers in reverse order. This
+ * ordering is the ABI apparently used by ethtool and other
+ * applications.
+ */
+ buff[1 + i] = mdio_read(netdev, nic->mii.phy_id,
+ E100_PHY_REGS - 1 - i);
memset(nic->mem->dump_buf, 0, sizeof(nic->mem->dump_buf));
e100_exec_cb(nic, NULL, e100_dump);
msleep(10);
- memcpy(&buff[2 + E100_PHY_REGS], nic->mem->dump_buf,
- sizeof(nic->mem->dump_buf));
+ memcpy(&buff[1 + E100_PHY_REGS], nic->mem->dump_buf,
+ sizeof(nic->mem->dump_buf));
}
static void e100_get_wol(struct net_device *netdev, struct ethtool_wolinfo *wol)
diff --git a/drivers/net/ethernet/mellanox/mlx4/en_netdev.c b/drivers/net/ethernet/mellanox/mlx4/en_netdev.c
index f3a0617733d8..943bd189e895 100644
--- a/drivers/net/ethernet/mellanox/mlx4/en_netdev.c
+++ b/drivers/net/ethernet/mellanox/mlx4/en_netdev.c
@@ -372,6 +372,9 @@ mlx4_en_filter_rfs(struct net_device *net_dev, const struct sk_buff *skb,
int nhoff = skb_network_offset(skb);
int ret = 0;
+ if (skb->encapsulation)
+ return -EPROTONOSUPPORT;
+
if (skb->protocol != htons(ETH_P_IP))
return -EPROTONOSUPPORT;
diff --git a/drivers/net/ethernet/stmicro/stmmac/stmmac_main.c b/drivers/net/ethernet/stmicro/stmmac/stmmac_main.c
index af59761ddfa0..064e13bd2c8b 100644
--- a/drivers/net/ethernet/stmicro/stmmac/stmmac_main.c
+++ b/drivers/net/ethernet/stmicro/stmmac/stmmac_main.c
@@ -227,7 +227,7 @@ static void stmmac_clk_csr_set(struct stmmac_priv *priv)
priv->clk_csr = STMMAC_CSR_100_150M;
else if ((clk_rate >= CSR_F_150M) && (clk_rate < CSR_F_250M))
priv->clk_csr = STMMAC_CSR_150_250M;
- else if ((clk_rate >= CSR_F_250M) && (clk_rate < CSR_F_300M))
+ else if ((clk_rate >= CSR_F_250M) && (clk_rate <= CSR_F_300M))
priv->clk_csr = STMMAC_CSR_250_300M;
}
diff --git a/drivers/net/hamradio/6pack.c b/drivers/net/hamradio/6pack.c
index 1001e9a2edd4..af776d7be780 100644
--- a/drivers/net/hamradio/6pack.c
+++ b/drivers/net/hamradio/6pack.c
@@ -68,9 +68,9 @@
#define SIXP_DAMA_OFF 0
/* default level 2 parameters */
-#define SIXP_TXDELAY (HZ/4) /* in 1 s */
+#define SIXP_TXDELAY 25 /* 250 ms */
#define SIXP_PERSIST 50 /* in 256ths */
-#define SIXP_SLOTTIME (HZ/10) /* in 1 s */
+#define SIXP_SLOTTIME 10 /* 100 ms */
#define SIXP_INIT_RESYNC_TIMEOUT (3*HZ/2) /* in 1 s */
#define SIXP_RESYNC_TIMEOUT 5*HZ /* in 1 s */
diff --git a/drivers/net/usb/hso.c b/drivers/net/usb/hso.c
index a66077f51457..77a7a7ddb631 100644
--- a/drivers/net/usb/hso.c
+++ b/drivers/net/usb/hso.c
@@ -2511,7 +2511,7 @@ static struct hso_device *hso_create_net_device(struct usb_interface *interface,
hso_net_init);
if (!net) {
dev_err(&interface->dev, "Unable to create ethernet device\n");
- goto exit;
+ goto err_hso_dev;
}
hso_net = netdev_priv(net);
@@ -2524,13 +2524,13 @@ static struct hso_device *hso_create_net_device(struct usb_interface *interface,
USB_DIR_IN);
if (!hso_net->in_endp) {
dev_err(&interface->dev, "Can't find BULK IN endpoint\n");
- goto exit;
+ goto err_net;
}
hso_net->out_endp = hso_get_ep(interface, USB_ENDPOINT_XFER_BULK,
USB_DIR_OUT);
if (!hso_net->out_endp) {
dev_err(&interface->dev, "Can't find BULK OUT endpoint\n");
- goto exit;
+ goto err_net;
}
SET_NETDEV_DEV(net, &interface->dev);
SET_NETDEV_DEVTYPE(net, &hso_type);
@@ -2539,18 +2539,18 @@ static struct hso_device *hso_create_net_device(struct usb_interface *interface,
for (i = 0; i < MUX_BULK_RX_BUF_COUNT; i++) {
hso_net->mux_bulk_rx_urb_pool[i] = usb_alloc_urb(0, GFP_KERNEL);
if (!hso_net->mux_bulk_rx_urb_pool[i])
- goto exit;
+ goto err_mux_bulk_rx;
hso_net->mux_bulk_rx_buf_pool[i] = kzalloc(MUX_BULK_RX_BUF_SIZE,
GFP_KERNEL);
if (!hso_net->mux_bulk_rx_buf_pool[i])
- goto exit;
+ goto err_mux_bulk_rx;
}
hso_net->mux_bulk_tx_urb = usb_alloc_urb(0, GFP_KERNEL);
if (!hso_net->mux_bulk_tx_urb)
- goto exit;
+ goto err_mux_bulk_rx;
hso_net->mux_bulk_tx_buf = kzalloc(MUX_BULK_TX_BUF_SIZE, GFP_KERNEL);
if (!hso_net->mux_bulk_tx_buf)
- goto exit;
+ goto err_free_tx_urb;
add_net_device(hso_dev);
@@ -2558,7 +2558,7 @@ static struct hso_device *hso_create_net_device(struct usb_interface *interface,
result = register_netdev(net);
if (result) {
dev_err(&interface->dev, "Failed to register device\n");
- goto exit;
+ goto err_free_tx_buf;
}
hso_log_port(hso_dev);
@@ -2566,8 +2566,21 @@ static struct hso_device *hso_create_net_device(struct usb_interface *interface,
hso_create_rfkill(hso_dev, interface);
return hso_dev;
-exit:
- hso_free_net_device(hso_dev);
+
+err_free_tx_buf:
+ remove_net_device(hso_dev);
+ kfree(hso_net->mux_bulk_tx_buf);
+err_free_tx_urb:
+ usb_free_urb(hso_net->mux_bulk_tx_urb);
+err_mux_bulk_rx:
+ for (i = 0; i < MUX_BULK_RX_BUF_COUNT; i++) {
+ usb_free_urb(hso_net->mux_bulk_rx_urb_pool[i]);
+ kfree(hso_net->mux_bulk_rx_buf_pool[i]);
+ }
+err_net:
+ free_netdev(net);
+err_hso_dev:
+ kfree(hso_dev);
return NULL;
}
@@ -2714,14 +2727,14 @@ struct hso_device *hso_create_mux_serial_device(struct usb_interface *interface,
serial = kzalloc(sizeof(*serial), GFP_KERNEL);
if (!serial)
- goto exit;
+ goto err_free_dev;
hso_dev->port_data.dev_serial = serial;
serial->parent = hso_dev;
if (hso_serial_common_create
(serial, 1, CTRL_URB_RX_SIZE, CTRL_URB_TX_SIZE))
- goto exit;
+ goto err_free_serial;
serial->tx_data_length--;
serial->write_data = hso_mux_serial_write_data;
@@ -2737,11 +2750,9 @@ struct hso_device *hso_create_mux_serial_device(struct usb_interface *interface,
/* done, return it */
return hso_dev;
-exit:
- if (serial) {
- tty_unregister_device(tty_drv, serial->minor);
- kfree(serial);
- }
+err_free_serial:
+ kfree(serial);
+err_free_dev:
kfree(hso_dev);
return NULL;
diff --git a/drivers/nvme/host/multipath.c b/drivers/nvme/host/multipath.c
index 64f699a1afd7..022e03643dac 100644
--- a/drivers/nvme/host/multipath.c
+++ b/drivers/nvme/host/multipath.c
@@ -398,14 +398,17 @@ static int nvme_update_ana_state(struct nvme_ctrl *ctrl,
down_read(&ctrl->namespaces_rwsem);
list_for_each_entry(ns, &ctrl->namespaces, list) {
- unsigned nsid = le32_to_cpu(desc->nsids[n]);
-
+ unsigned nsid;
+again:
+ nsid = le32_to_cpu(desc->nsids[n]);
if (ns->head->ns_id < nsid)
continue;
if (ns->head->ns_id == nsid)
nvme_update_ns_ana_state(desc, ns);
if (++n == nr_nsids)
break;
+ if (ns->head->ns_id > nsid)
+ goto again;
}
up_read(&ctrl->namespaces_rwsem);
return 0;
diff --git a/drivers/pci/controller/pci-aardvark.c b/drivers/pci/controller/pci-aardvark.c
index a9669b28c2a6..68afd4fa7ec9 100644
--- a/drivers/pci/controller/pci-aardvark.c
+++ b/drivers/pci/controller/pci-aardvark.c
@@ -55,6 +55,7 @@
#define PIO_COMPLETION_STATUS_CRS 2
#define PIO_COMPLETION_STATUS_CA 4
#define PIO_NON_POSTED_REQ BIT(10)
+#define PIO_ERR_STATUS BIT(11)
#define PIO_ADDR_LS (PIO_BASE_ADDR + 0x8)
#define PIO_ADDR_MS (PIO_BASE_ADDR + 0xc)
#define PIO_WR_DATA (PIO_BASE_ADDR + 0x10)
@@ -330,7 +331,7 @@ static void advk_pcie_setup_hw(struct advk_pcie *pcie)
advk_writel(pcie, reg, PCIE_CORE_CMD_STATUS_REG);
}
-static void advk_pcie_check_pio_status(struct advk_pcie *pcie)
+static int advk_pcie_check_pio_status(struct advk_pcie *pcie, u32 *val)
{
struct device *dev = &pcie->pdev->dev;
u32 reg;
@@ -341,14 +342,49 @@ static void advk_pcie_check_pio_status(struct advk_pcie *pcie)
status = (reg & PIO_COMPLETION_STATUS_MASK) >>
PIO_COMPLETION_STATUS_SHIFT;
- if (!status)
- return;
-
+ /*
+ * According to HW spec, the PIO status check sequence as below:
+ * 1) even if COMPLETION_STATUS(bit9:7) indicates successful,
+ * it still needs to check Error Status(bit11), only when this bit
+ * indicates no error happen, the operation is successful.
+ * 2) value Unsupported Request(1) of COMPLETION_STATUS(bit9:7) only
+ * means a PIO write error, and for PIO read it is successful with
+ * a read value of 0xFFFFFFFF.
+ * 3) value Completion Retry Status(CRS) of COMPLETION_STATUS(bit9:7)
+ * only means a PIO write error, and for PIO read it is successful
+ * with a read value of 0xFFFF0001.
+ * 4) value Completer Abort (CA) of COMPLETION_STATUS(bit9:7) means
+ * error for both PIO read and PIO write operation.
+ * 5) other errors are indicated as 'unknown'.
+ */
switch (status) {
+ case PIO_COMPLETION_STATUS_OK:
+ if (reg & PIO_ERR_STATUS) {
+ strcomp_status = "COMP_ERR";
+ break;
+ }
+ /* Get the read result */
+ if (val)
+ *val = advk_readl(pcie, PIO_RD_DATA);
+ /* No error */
+ strcomp_status = NULL;
+ break;
case PIO_COMPLETION_STATUS_UR:
strcomp_status = "UR";
break;
case PIO_COMPLETION_STATUS_CRS:
+ /* PCIe r4.0, sec 2.3.2, says:
+ * If CRS Software Visibility is not enabled, the Root Complex
+ * must re-issue the Configuration Request as a new Request.
+ * A Root Complex implementation may choose to limit the number
+ * of Configuration Request/CRS Completion Status loops before
+ * determining that something is wrong with the target of the
+ * Request and taking appropriate action, e.g., complete the
+ * Request to the host as a failed transaction.
+ *
+ * To simplify implementation do not re-issue the Configuration
+ * Request and complete the Request as a failed transaction.
+ */
strcomp_status = "CRS";
break;
case PIO_COMPLETION_STATUS_CA:
@@ -359,6 +395,9 @@ static void advk_pcie_check_pio_status(struct advk_pcie *pcie)
break;
}
+ if (!strcomp_status)
+ return 0;
+
if (reg & PIO_NON_POSTED_REQ)
str_posted = "Non-posted";
else
@@ -366,6 +405,8 @@ static void advk_pcie_check_pio_status(struct advk_pcie *pcie)
dev_err(dev, "%s PIO Response Status: %s, %#x @ %#x\n",
str_posted, strcomp_status, reg, advk_readl(pcie, PIO_ADDR_LS));
+
+ return -EFAULT;
}
static int advk_pcie_wait_pio(struct advk_pcie *pcie)
@@ -467,10 +508,13 @@ static int advk_pcie_rd_conf(struct pci_bus *bus, u32 devfn,
if (ret < 0)
return PCIBIOS_SET_FAILED;
- advk_pcie_check_pio_status(pcie);
+ /* Check PIO status and get the read result */
+ ret = advk_pcie_check_pio_status(pcie, val);
+ if (ret < 0) {
+ *val = 0xffffffff;
+ return PCIBIOS_SET_FAILED;
+ }
- /* Get the read result */
- *val = advk_readl(pcie, PIO_RD_DATA);
if (size == 1)
*val = (*val >> (8 * (where & 3))) & 0xff;
else if (size == 2)
@@ -530,7 +574,9 @@ static int advk_pcie_wr_conf(struct pci_bus *bus, u32 devfn,
if (ret < 0)
return PCIBIOS_SET_FAILED;
- advk_pcie_check_pio_status(pcie);
+ ret = advk_pcie_check_pio_status(pcie, NULL);
+ if (ret < 0)
+ return PCIBIOS_SET_FAILED;
return PCIBIOS_SUCCESSFUL;
}
diff --git a/drivers/scsi/csiostor/csio_init.c b/drivers/scsi/csiostor/csio_init.c
index 1793981337dd..b59bcd2553d1 100644
--- a/drivers/scsi/csiostor/csio_init.c
+++ b/drivers/scsi/csiostor/csio_init.c
@@ -1263,3 +1263,4 @@ MODULE_DEVICE_TABLE(pci, csio_pci_tbl);
MODULE_VERSION(CSIO_DRV_VERSION);
MODULE_FIRMWARE(FW_FNAME_T5);
MODULE_FIRMWARE(FW_FNAME_T6);
+MODULE_SOFTDEP("pre: cxgb4");
diff --git a/drivers/scsi/scsi_transport_iscsi.c b/drivers/scsi/scsi_transport_iscsi.c
index 20e69052161e..c06e648a415b 100644
--- a/drivers/scsi/scsi_transport_iscsi.c
+++ b/drivers/scsi/scsi_transport_iscsi.c
@@ -429,9 +429,7 @@ static umode_t iscsi_iface_attr_is_visible(struct kobject *kobj,
struct iscsi_transport *t = iface->transport;
int param = -1;
- if (attr == &dev_attr_iface_enabled.attr)
- param = ISCSI_NET_PARAM_IFACE_ENABLE;
- else if (attr == &dev_attr_iface_def_taskmgmt_tmo.attr)
+ if (attr == &dev_attr_iface_def_taskmgmt_tmo.attr)
param = ISCSI_IFACE_PARAM_DEF_TASKMGMT_TMO;
else if (attr == &dev_attr_iface_header_digest.attr)
param = ISCSI_IFACE_PARAM_HDRDGST_EN;
@@ -471,7 +469,9 @@ static umode_t iscsi_iface_attr_is_visible(struct kobject *kobj,
if (param != -1)
return t->attr_is_visible(ISCSI_IFACE_PARAM, param);
- if (attr == &dev_attr_iface_vlan_id.attr)
+ if (attr == &dev_attr_iface_enabled.attr)
+ param = ISCSI_NET_PARAM_IFACE_ENABLE;
+ else if (attr == &dev_attr_iface_vlan_id.attr)
param = ISCSI_NET_PARAM_VLAN_ID;
else if (attr == &dev_attr_iface_vlan_priority.attr)
param = ISCSI_NET_PARAM_VLAN_PRIORITY;
diff --git a/drivers/spi/spi-tegra20-slink.c b/drivers/spi/spi-tegra20-slink.c
index c6b80a60951b..bc3097e5cc26 100644
--- a/drivers/spi/spi-tegra20-slink.c
+++ b/drivers/spi/spi-tegra20-slink.c
@@ -1210,7 +1210,7 @@ static int tegra_slink_resume(struct device *dev)
}
#endif
-static int tegra_slink_runtime_suspend(struct device *dev)
+static int __maybe_unused tegra_slink_runtime_suspend(struct device *dev)
{
struct spi_master *master = dev_get_drvdata(dev);
struct tegra_slink_data *tspi = spi_master_get_devdata(master);
@@ -1222,7 +1222,7 @@ static int tegra_slink_runtime_suspend(struct device *dev)
return 0;
}
-static int tegra_slink_runtime_resume(struct device *dev)
+static int __maybe_unused tegra_slink_runtime_resume(struct device *dev)
{
struct spi_master *master = dev_get_drvdata(dev);
struct tegra_slink_data *tspi = spi_master_get_devdata(master);
diff --git a/drivers/staging/erofs/include/trace/events/erofs.h b/drivers/staging/erofs/include/trace/events/erofs.h
index 5aead93a762f..852c94176d1b 100644
--- a/drivers/staging/erofs/include/trace/events/erofs.h
+++ b/drivers/staging/erofs/include/trace/events/erofs.h
@@ -32,20 +32,20 @@ TRACE_EVENT(erofs_lookup,
TP_STRUCT__entry(
__field(dev_t, dev )
__field(erofs_nid_t, nid )
- __field(const char *, name )
+ __string(name, dentry->d_name.name )
__field(unsigned int, flags )
),
TP_fast_assign(
__entry->dev = dir->i_sb->s_dev;
__entry->nid = EROFS_V(dir)->nid;
- __entry->name = dentry->d_name.name;
+ __assign_str(name, dentry->d_name.name);
__entry->flags = flags;
),
TP_printk("dev = (%d,%d), pnid = %llu, name:%s, flags:%x",
show_dev_nid(__entry),
- __entry->name,
+ __get_str(name),
__entry->flags)
);
diff --git a/drivers/staging/greybus/uart.c b/drivers/staging/greybus/uart.c
index 2343914f7548..2e9006a49587 100644
--- a/drivers/staging/greybus/uart.c
+++ b/drivers/staging/greybus/uart.c
@@ -799,6 +799,17 @@ static void gb_tty_port_shutdown(struct tty_port *port)
gbphy_runtime_put_autosuspend(gb_tty->gbphy_dev);
}
+static void gb_tty_port_destruct(struct tty_port *port)
+{
+ struct gb_tty *gb_tty = container_of(port, struct gb_tty, port);
+
+ if (gb_tty->minor != GB_NUM_MINORS)
+ release_minor(gb_tty);
+ kfifo_free(&gb_tty->write_fifo);
+ kfree(gb_tty->buffer);
+ kfree(gb_tty);
+}
+
static const struct tty_operations gb_ops = {
.install = gb_tty_install,
.open = gb_tty_open,
@@ -822,6 +833,7 @@ static const struct tty_port_operations gb_port_ops = {
.dtr_rts = gb_tty_dtr_rts,
.activate = gb_tty_port_activate,
.shutdown = gb_tty_port_shutdown,
+ .destruct = gb_tty_port_destruct,
};
static int gb_uart_probe(struct gbphy_device *gbphy_dev,
@@ -834,17 +846,11 @@ static int gb_uart_probe(struct gbphy_device *gbphy_dev,
int retval;
int minor;
- gb_tty = kzalloc(sizeof(*gb_tty), GFP_KERNEL);
- if (!gb_tty)
- return -ENOMEM;
-
connection = gb_connection_create(gbphy_dev->bundle,
le16_to_cpu(gbphy_dev->cport_desc->id),
gb_uart_request_handler);
- if (IS_ERR(connection)) {
- retval = PTR_ERR(connection);
- goto exit_tty_free;
- }
+ if (IS_ERR(connection))
+ return PTR_ERR(connection);
max_payload = gb_operation_get_payload_size_max(connection);
if (max_payload < sizeof(struct gb_uart_send_data_request)) {
@@ -852,13 +858,23 @@ static int gb_uart_probe(struct gbphy_device *gbphy_dev,
goto exit_connection_destroy;
}
+ gb_tty = kzalloc(sizeof(*gb_tty), GFP_KERNEL);
+ if (!gb_tty) {
+ retval = -ENOMEM;
+ goto exit_connection_destroy;
+ }
+
+ tty_port_init(&gb_tty->port);
+ gb_tty->port.ops = &gb_port_ops;
+ gb_tty->minor = GB_NUM_MINORS;
+
gb_tty->buffer_payload_max = max_payload -
sizeof(struct gb_uart_send_data_request);
gb_tty->buffer = kzalloc(gb_tty->buffer_payload_max, GFP_KERNEL);
if (!gb_tty->buffer) {
retval = -ENOMEM;
- goto exit_connection_destroy;
+ goto exit_put_port;
}
INIT_WORK(&gb_tty->tx_work, gb_uart_tx_write_work);
@@ -866,7 +882,7 @@ static int gb_uart_probe(struct gbphy_device *gbphy_dev,
retval = kfifo_alloc(&gb_tty->write_fifo, GB_UART_WRITE_FIFO_SIZE,
GFP_KERNEL);
if (retval)
- goto exit_buf_free;
+ goto exit_put_port;
gb_tty->credits = GB_UART_FIRMWARE_CREDITS;
init_completion(&gb_tty->credits_complete);
@@ -880,7 +896,7 @@ static int gb_uart_probe(struct gbphy_device *gbphy_dev,
} else {
retval = minor;
}
- goto exit_kfifo_free;
+ goto exit_put_port;
}
gb_tty->minor = minor;
@@ -889,9 +905,6 @@ static int gb_uart_probe(struct gbphy_device *gbphy_dev,
init_waitqueue_head(&gb_tty->wioctl);
mutex_init(&gb_tty->mutex);
- tty_port_init(&gb_tty->port);
- gb_tty->port.ops = &gb_port_ops;
-
gb_tty->connection = connection;
gb_tty->gbphy_dev = gbphy_dev;
gb_connection_set_data(connection, gb_tty);
@@ -899,7 +912,7 @@ static int gb_uart_probe(struct gbphy_device *gbphy_dev,
retval = gb_connection_enable_tx(connection);
if (retval)
- goto exit_release_minor;
+ goto exit_put_port;
send_control(gb_tty, gb_tty->ctrlout);
@@ -926,16 +939,10 @@ static int gb_uart_probe(struct gbphy_device *gbphy_dev,
exit_connection_disable:
gb_connection_disable(connection);
-exit_release_minor:
- release_minor(gb_tty);
-exit_kfifo_free:
- kfifo_free(&gb_tty->write_fifo);
-exit_buf_free:
- kfree(gb_tty->buffer);
+exit_put_port:
+ tty_port_put(&gb_tty->port);
exit_connection_destroy:
gb_connection_destroy(connection);
-exit_tty_free:
- kfree(gb_tty);
return retval;
}
@@ -966,15 +973,10 @@ static void gb_uart_remove(struct gbphy_device *gbphy_dev)
gb_connection_disable_rx(connection);
tty_unregister_device(gb_tty_driver, gb_tty->minor);
- /* FIXME - free transmit / receive buffers */
-
gb_connection_disable(connection);
- tty_port_destroy(&gb_tty->port);
gb_connection_destroy(connection);
- release_minor(gb_tty);
- kfifo_free(&gb_tty->write_fifo);
- kfree(gb_tty->buffer);
- kfree(gb_tty);
+
+ tty_port_put(&gb_tty->port);
}
static int gb_tty_init(void)
diff --git a/drivers/thermal/thermal_core.c b/drivers/thermal/thermal_core.c
index a24296d68f3e..ae60599c462b 100644
--- a/drivers/thermal/thermal_core.c
+++ b/drivers/thermal/thermal_core.c
@@ -228,15 +228,14 @@ int thermal_build_list_of_policies(char *buf)
{
struct thermal_governor *pos;
ssize_t count = 0;
- ssize_t size = PAGE_SIZE;
mutex_lock(&thermal_governor_lock);
list_for_each_entry(pos, &thermal_governor_list, governor_list) {
- size = PAGE_SIZE - count;
- count += scnprintf(buf + count, size, "%s ", pos->name);
+ count += scnprintf(buf + count, PAGE_SIZE - count, "%s ",
+ pos->name);
}
- count += scnprintf(buf + count, size, "\n");
+ count += scnprintf(buf + count, PAGE_SIZE - count, "\n");
mutex_unlock(&thermal_governor_lock);
diff --git a/drivers/tty/serial/mvebu-uart.c b/drivers/tty/serial/mvebu-uart.c
index f0107d5df99e..77f3f3728a79 100644
--- a/drivers/tty/serial/mvebu-uart.c
+++ b/drivers/tty/serial/mvebu-uart.c
@@ -163,7 +163,7 @@ static unsigned int mvebu_uart_tx_empty(struct uart_port *port)
st = readl(port->membase + UART_STAT);
spin_unlock_irqrestore(&port->lock, flags);
- return (st & STAT_TX_FIFO_EMP) ? TIOCSER_TEMT : 0;
+ return (st & STAT_TX_EMP) ? TIOCSER_TEMT : 0;
}
static unsigned int mvebu_uart_get_mctrl(struct uart_port *port)
diff --git a/drivers/tty/synclink_gt.c b/drivers/tty/synclink_gt.c
index e9779b03ee56..afe34beec720 100644
--- a/drivers/tty/synclink_gt.c
+++ b/drivers/tty/synclink_gt.c
@@ -137,37 +137,14 @@ MODULE_PARM_DESC(maxframe, "Maximum frame size used by device (4096 to 65535)");
*/
static struct tty_driver *serial_driver;
-static int open(struct tty_struct *tty, struct file * filp);
-static void close(struct tty_struct *tty, struct file * filp);
-static void hangup(struct tty_struct *tty);
-static void set_termios(struct tty_struct *tty, struct ktermios *old_termios);
-
-static int write(struct tty_struct *tty, const unsigned char *buf, int count);
-static int put_char(struct tty_struct *tty, unsigned char ch);
-static void send_xchar(struct tty_struct *tty, char ch);
static void wait_until_sent(struct tty_struct *tty, int timeout);
-static int write_room(struct tty_struct *tty);
-static void flush_chars(struct tty_struct *tty);
static void flush_buffer(struct tty_struct *tty);
-static void tx_hold(struct tty_struct *tty);
static void tx_release(struct tty_struct *tty);
-static int ioctl(struct tty_struct *tty, unsigned int cmd, unsigned long arg);
-static int chars_in_buffer(struct tty_struct *tty);
-static void throttle(struct tty_struct * tty);
-static void unthrottle(struct tty_struct * tty);
-static int set_break(struct tty_struct *tty, int break_state);
-
/*
- * generic HDLC support and callbacks
+ * generic HDLC support
*/
-#if SYNCLINK_GENERIC_HDLC
#define dev_to_port(D) (dev_to_hdlc(D)->priv)
-static void hdlcdev_tx_done(struct slgt_info *info);
-static void hdlcdev_rx(struct slgt_info *info, char *buf, int size);
-static int hdlcdev_init(struct slgt_info *info);
-static void hdlcdev_exit(struct slgt_info *info);
-#endif
/*
@@ -186,9 +163,6 @@ struct cond_wait {
wait_queue_entry_t wait;
unsigned int data;
};
-static void init_cond_wait(struct cond_wait *w, unsigned int data);
-static void add_cond_wait(struct cond_wait **head, struct cond_wait *w);
-static void remove_cond_wait(struct cond_wait **head, struct cond_wait *w);
static void flush_cond_wait(struct cond_wait **head);
/*
@@ -443,12 +417,8 @@ static void shutdown(struct slgt_info *info);
static void program_hw(struct slgt_info *info);
static void change_params(struct slgt_info *info);
-static int register_test(struct slgt_info *info);
-static int irq_test(struct slgt_info *info);
-static int loopback_test(struct slgt_info *info);
static int adapter_test(struct slgt_info *info);
-static void reset_adapter(struct slgt_info *info);
static void reset_port(struct slgt_info *info);
static void async_mode(struct slgt_info *info);
static void sync_mode(struct slgt_info *info);
@@ -457,41 +427,23 @@ static void rx_stop(struct slgt_info *info);
static void rx_start(struct slgt_info *info);
static void reset_rbufs(struct slgt_info *info);
static void free_rbufs(struct slgt_info *info, unsigned int first, unsigned int last);
-static void rdma_reset(struct slgt_info *info);
static bool rx_get_frame(struct slgt_info *info);
static bool rx_get_buf(struct slgt_info *info);
static void tx_start(struct slgt_info *info);
static void tx_stop(struct slgt_info *info);
static void tx_set_idle(struct slgt_info *info);
-static unsigned int free_tbuf_count(struct slgt_info *info);
static unsigned int tbuf_bytes(struct slgt_info *info);
static void reset_tbufs(struct slgt_info *info);
static void tdma_reset(struct slgt_info *info);
static bool tx_load(struct slgt_info *info, const char *buf, unsigned int count);
-static void get_signals(struct slgt_info *info);
-static void set_signals(struct slgt_info *info);
-static void enable_loopback(struct slgt_info *info);
+static void get_gtsignals(struct slgt_info *info);
+static void set_gtsignals(struct slgt_info *info);
static void set_rate(struct slgt_info *info, u32 data_rate);
-static int bh_action(struct slgt_info *info);
-static void bh_handler(struct work_struct *work);
static void bh_transmit(struct slgt_info *info);
-static void isr_serial(struct slgt_info *info);
-static void isr_rdma(struct slgt_info *info);
static void isr_txeom(struct slgt_info *info, unsigned short status);
-static void isr_tdma(struct slgt_info *info);
-
-static int alloc_dma_bufs(struct slgt_info *info);
-static void free_dma_bufs(struct slgt_info *info);
-static int alloc_desc(struct slgt_info *info);
-static void free_desc(struct slgt_info *info);
-static int alloc_bufs(struct slgt_info *info, struct slgt_desc *bufs, int count);
-static void free_bufs(struct slgt_info *info, struct slgt_desc *bufs, int count);
-
-static int alloc_tmp_rbuf(struct slgt_info *info);
-static void free_tmp_rbuf(struct slgt_info *info);
static void tx_timeout(struct timer_list *t);
static void rx_timeout(struct timer_list *t);
@@ -509,10 +461,6 @@ static int tx_abort(struct slgt_info *info);
static int rx_enable(struct slgt_info *info, int enable);
static int modem_input_wait(struct slgt_info *info,int arg);
static int wait_mgsl_event(struct slgt_info *info, int __user *mask_ptr);
-static int tiocmget(struct tty_struct *tty);
-static int tiocmset(struct tty_struct *tty,
- unsigned int set, unsigned int clear);
-static int set_break(struct tty_struct *tty, int break_state);
static int get_interface(struct slgt_info *info, int __user *if_mode);
static int set_interface(struct slgt_info *info, int if_mode);
static int set_gpio(struct slgt_info *info, struct gpio_desc __user *gpio);
@@ -526,9 +474,6 @@ static int set_xctrl(struct slgt_info *info, int if_mode);
/*
* driver functions
*/
-static void add_device(struct slgt_info *info);
-static void device_init(int adapter_num, struct pci_dev *pdev);
-static int claim_resources(struct slgt_info *info);
static void release_resources(struct slgt_info *info);
/*
@@ -776,7 +721,7 @@ static void set_termios(struct tty_struct *tty, struct ktermios *old_termios)
if ((old_termios->c_cflag & CBAUD) && !C_BAUD(tty)) {
info->signals &= ~(SerialSignal_RTS | SerialSignal_DTR);
spin_lock_irqsave(&info->lock,flags);
- set_signals(info);
+ set_gtsignals(info);
spin_unlock_irqrestore(&info->lock,flags);
}
@@ -786,7 +731,7 @@ static void set_termios(struct tty_struct *tty, struct ktermios *old_termios)
if (!C_CRTSCTS(tty) || !tty_throttled(tty))
info->signals |= SerialSignal_RTS;
spin_lock_irqsave(&info->lock,flags);
- set_signals(info);
+ set_gtsignals(info);
spin_unlock_irqrestore(&info->lock,flags);
}
@@ -1238,7 +1183,7 @@ static inline void line_info(struct seq_file *m, struct slgt_info *info)
/* output current serial signal states */
spin_lock_irqsave(&info->lock,flags);
- get_signals(info);
+ get_gtsignals(info);
spin_unlock_irqrestore(&info->lock,flags);
stat_buf[0] = 0;
@@ -1338,7 +1283,7 @@ static void throttle(struct tty_struct * tty)
if (C_CRTSCTS(tty)) {
spin_lock_irqsave(&info->lock,flags);
info->signals &= ~SerialSignal_RTS;
- set_signals(info);
+ set_gtsignals(info);
spin_unlock_irqrestore(&info->lock,flags);
}
}
@@ -1363,7 +1308,7 @@ static void unthrottle(struct tty_struct * tty)
if (C_CRTSCTS(tty)) {
spin_lock_irqsave(&info->lock,flags);
info->signals |= SerialSignal_RTS;
- set_signals(info);
+ set_gtsignals(info);
spin_unlock_irqrestore(&info->lock,flags);
}
}
@@ -1535,7 +1480,7 @@ static int hdlcdev_open(struct net_device *dev)
/* inform generic HDLC layer of current DCD status */
spin_lock_irqsave(&info->lock, flags);
- get_signals(info);
+ get_gtsignals(info);
spin_unlock_irqrestore(&info->lock, flags);
if (info->signals & SerialSignal_DCD)
netif_carrier_on(dev);
@@ -2291,7 +2236,7 @@ static void isr_txeom(struct slgt_info *info, unsigned short status)
if (info->params.mode != MGSL_MODE_ASYNC && info->drop_rts_on_tx_done) {
info->signals &= ~SerialSignal_RTS;
info->drop_rts_on_tx_done = false;
- set_signals(info);
+ set_gtsignals(info);
}
#if SYNCLINK_GENERIC_HDLC
@@ -2456,7 +2401,7 @@ static void shutdown(struct slgt_info *info)
if (!info->port.tty || info->port.tty->termios.c_cflag & HUPCL) {
info->signals &= ~(SerialSignal_RTS | SerialSignal_DTR);
- set_signals(info);
+ set_gtsignals(info);
}
flush_cond_wait(&info->gpio_wait_q);
@@ -2484,7 +2429,7 @@ static void program_hw(struct slgt_info *info)
else
async_mode(info);
- set_signals(info);
+ set_gtsignals(info);
info->dcd_chkcount = 0;
info->cts_chkcount = 0;
@@ -2492,7 +2437,7 @@ static void program_hw(struct slgt_info *info)
info->dsr_chkcount = 0;
slgt_irq_on(info, IRQ_DCD | IRQ_CTS | IRQ_DSR | IRQ_RI);
- get_signals(info);
+ get_gtsignals(info);
if (info->netcount ||
(info->port.tty && info->port.tty->termios.c_cflag & CREAD))
@@ -2736,7 +2681,7 @@ static int wait_mgsl_event(struct slgt_info *info, int __user *mask_ptr)
spin_lock_irqsave(&info->lock,flags);
/* return immediately if state matches requested events */
- get_signals(info);
+ get_gtsignals(info);
s = info->signals;
events = mask &
@@ -3154,7 +3099,7 @@ static int tiocmget(struct tty_struct *tty)
unsigned long flags;
spin_lock_irqsave(&info->lock,flags);
- get_signals(info);
+ get_gtsignals(info);
spin_unlock_irqrestore(&info->lock,flags);
result = ((info->signals & SerialSignal_RTS) ? TIOCM_RTS:0) +
@@ -3193,7 +3138,7 @@ static int tiocmset(struct tty_struct *tty,
info->signals &= ~SerialSignal_DTR;
spin_lock_irqsave(&info->lock,flags);
- set_signals(info);
+ set_gtsignals(info);
spin_unlock_irqrestore(&info->lock,flags);
return 0;
}
@@ -3204,7 +3149,7 @@ static int carrier_raised(struct tty_port *port)
struct slgt_info *info = container_of(port, struct slgt_info, port);
spin_lock_irqsave(&info->lock,flags);
- get_signals(info);
+ get_gtsignals(info);
spin_unlock_irqrestore(&info->lock,flags);
return (info->signals & SerialSignal_DCD) ? 1 : 0;
}
@@ -3219,7 +3164,7 @@ static void dtr_rts(struct tty_port *port, int on)
info->signals |= SerialSignal_RTS | SerialSignal_DTR;
else
info->signals &= ~(SerialSignal_RTS | SerialSignal_DTR);
- set_signals(info);
+ set_gtsignals(info);
spin_unlock_irqrestore(&info->lock,flags);
}
@@ -4018,10 +3963,10 @@ static void tx_start(struct slgt_info *info)
if (info->params.mode != MGSL_MODE_ASYNC) {
if (info->params.flags & HDLC_FLAG_AUTO_RTS) {
- get_signals(info);
+ get_gtsignals(info);
if (!(info->signals & SerialSignal_RTS)) {
info->signals |= SerialSignal_RTS;
- set_signals(info);
+ set_gtsignals(info);
info->drop_rts_on_tx_done = true;
}
}
@@ -4075,7 +4020,7 @@ static void reset_port(struct slgt_info *info)
rx_stop(info);
info->signals &= ~(SerialSignal_RTS | SerialSignal_DTR);
- set_signals(info);
+ set_gtsignals(info);
slgt_irq_off(info, IRQ_ALL | IRQ_MASTER);
}
@@ -4497,7 +4442,7 @@ static void tx_set_idle(struct slgt_info *info)
/*
* get state of V24 status (input) signals
*/
-static void get_signals(struct slgt_info *info)
+static void get_gtsignals(struct slgt_info *info)
{
unsigned short status = rd_reg16(info, SSR);
@@ -4559,7 +4504,7 @@ static void msc_set_vcr(struct slgt_info *info)
/*
* set state of V24 control (output) signals
*/
-static void set_signals(struct slgt_info *info)
+static void set_gtsignals(struct slgt_info *info)
{
unsigned char val = rd_reg8(info, VCR);
if (info->signals & SerialSignal_DTR)
diff --git a/drivers/tty/vt/vt.c b/drivers/tty/vt/vt.c
index b2b5f19fb2fb..72e3989dffa6 100644
--- a/drivers/tty/vt/vt.c
+++ b/drivers/tty/vt/vt.c
@@ -1218,8 +1218,25 @@ static int vc_do_resize(struct tty_struct *tty, struct vc_data *vc,
new_row_size = new_cols << 1;
new_screen_size = new_row_size * new_rows;
- if (new_cols == vc->vc_cols && new_rows == vc->vc_rows)
- return 0;
+ if (new_cols == vc->vc_cols && new_rows == vc->vc_rows) {
+ /*
+ * This function is being called here to cover the case
+ * where the userspace calls the FBIOPUT_VSCREENINFO twice,
+ * passing the same fb_var_screeninfo containing the fields
+ * yres/xres equal to a number non-multiple of vc_font.height
+ * and yres_virtual/xres_virtual equal to number lesser than the
+ * vc_font.height and yres/xres.
+ * In the second call, the struct fb_var_screeninfo isn't
+ * being modified by the underlying driver because of the
+ * if above, and this causes the fbcon_display->vrows to become
+ * negative and it eventually leads to out-of-bound
+ * access by the imageblit function.
+ * To give the correct values to the struct and to not have
+ * to deal with possible errors from the code below, we call
+ * the resize_screen here as well.
+ */
+ return resize_screen(vc, new_cols, new_rows, user);
+ }
if (new_screen_size > KMALLOC_MAX_SIZE || !new_screen_size)
return -EINVAL;
diff --git a/drivers/usb/class/cdc-acm.c b/drivers/usb/class/cdc-acm.c
index 371aae41ed65..6959231d63b3 100644
--- a/drivers/usb/class/cdc-acm.c
+++ b/drivers/usb/class/cdc-acm.c
@@ -734,7 +734,8 @@ static void acm_port_destruct(struct tty_port *port)
{
struct acm *acm = container_of(port, struct acm, port);
- acm_release_minor(acm);
+ if (acm->minor != ACM_MINOR_INVALID)
+ acm_release_minor(acm);
usb_put_intf(acm->control);
kfree(acm->country_codes);
kfree(acm);
@@ -1396,8 +1397,10 @@ static int acm_probe(struct usb_interface *intf,
usb_get_intf(acm->control); /* undone in destruct() */
minor = acm_alloc_minor(acm);
- if (minor < 0)
+ if (minor < 0) {
+ acm->minor = ACM_MINOR_INVALID;
goto alloc_fail1;
+ }
acm->minor = minor;
acm->dev = usb_dev;
diff --git a/drivers/usb/class/cdc-acm.h b/drivers/usb/class/cdc-acm.h
index d8f8651425c4..02e2ad61742d 100644
--- a/drivers/usb/class/cdc-acm.h
+++ b/drivers/usb/class/cdc-acm.h
@@ -22,6 +22,8 @@
#define ACM_TTY_MAJOR 166
#define ACM_TTY_MINORS 256
+#define ACM_MINOR_INVALID ACM_TTY_MINORS
+
/*
* Requests.
*/
diff --git a/drivers/usb/dwc2/gadget.c b/drivers/usb/dwc2/gadget.c
index 7fff96dff0a0..b405c8ac8984 100644
--- a/drivers/usb/dwc2/gadget.c
+++ b/drivers/usb/dwc2/gadget.c
@@ -2919,9 +2919,7 @@ static void dwc2_hsotg_epint(struct dwc2_hsotg *hsotg, unsigned int idx,
/* In DDMA handle isochronous requests separately */
if (using_desc_dma(hsotg) && hs_ep->isochronous) {
- /* XferCompl set along with BNA */
- if (!(ints & DXEPINT_BNAINTR))
- dwc2_gadget_complete_isoc_request_ddma(hs_ep);
+ dwc2_gadget_complete_isoc_request_ddma(hs_ep);
} else if (dir_in) {
/*
* We get OutDone from the FIFO, so we only
diff --git a/drivers/usb/gadget/udc/r8a66597-udc.c b/drivers/usb/gadget/udc/r8a66597-udc.c
index a766476fd742..ca0aebb5bd0c 100644
--- a/drivers/usb/gadget/udc/r8a66597-udc.c
+++ b/drivers/usb/gadget/udc/r8a66597-udc.c
@@ -1250,7 +1250,7 @@ static void set_feature(struct r8a66597 *r8a66597, struct usb_ctrlrequest *ctrl)
do {
tmp = r8a66597_read(r8a66597, INTSTS0) & CTSQ;
udelay(1);
- } while (tmp != CS_IDST || timeout-- > 0);
+ } while (tmp != CS_IDST && timeout-- > 0);
if (tmp == CS_IDST)
r8a66597_bset(r8a66597,
diff --git a/drivers/usb/musb/tusb6010.c b/drivers/usb/musb/tusb6010.c
index 39453287b5c3..4ecfbf6bb1fa 100644
--- a/drivers/usb/musb/tusb6010.c
+++ b/drivers/usb/musb/tusb6010.c
@@ -190,6 +190,7 @@ tusb_fifo_write_unaligned(void __iomem *fifo, const u8 *buf, u16 len)
}
if (len > 0) {
/* Write the rest 1 - 3 bytes to FIFO */
+ val = 0;
memcpy(&val, buf, len);
musb_writel(fifo, 0, val);
}
diff --git a/drivers/usb/serial/cp210x.c b/drivers/usb/serial/cp210x.c
index eaf915566302..894572a5e5c5 100644
--- a/drivers/usb/serial/cp210x.c
+++ b/drivers/usb/serial/cp210x.c
@@ -234,6 +234,7 @@ static const struct usb_device_id id_table[] = {
{ USB_DEVICE(0x1FB9, 0x0602) }, /* Lake Shore Model 648 Magnet Power Supply */
{ USB_DEVICE(0x1FB9, 0x0700) }, /* Lake Shore Model 737 VSM Controller */
{ USB_DEVICE(0x1FB9, 0x0701) }, /* Lake Shore Model 776 Hall Matrix */
+ { USB_DEVICE(0x2184, 0x0030) }, /* GW Instek GDM-834x Digital Multimeter */
{ USB_DEVICE(0x2626, 0xEA60) }, /* Aruba Networks 7xxx USB Serial Console */
{ USB_DEVICE(0x3195, 0xF190) }, /* Link Instruments MSO-19 */
{ USB_DEVICE(0x3195, 0xF280) }, /* Link Instruments MSO-28 */
diff --git a/drivers/usb/serial/mos7840.c b/drivers/usb/serial/mos7840.c
index c78dfb7fd394..3e624b648aa6 100644
--- a/drivers/usb/serial/mos7840.c
+++ b/drivers/usb/serial/mos7840.c
@@ -113,7 +113,6 @@
#define BANDB_DEVICE_ID_USOPTL4_2P 0xBC02
#define BANDB_DEVICE_ID_USOPTL4_4 0xAC44
#define BANDB_DEVICE_ID_USOPTL4_4P 0xBC03
-#define BANDB_DEVICE_ID_USOPTL2_4 0xAC24
/* This driver also supports
* ATEN UC2324 device using Moschip MCS7840
@@ -194,7 +193,6 @@ static const struct usb_device_id id_table[] = {
{USB_DEVICE(USB_VENDOR_ID_BANDB, BANDB_DEVICE_ID_USOPTL4_2P)},
{USB_DEVICE(USB_VENDOR_ID_BANDB, BANDB_DEVICE_ID_USOPTL4_4)},
{USB_DEVICE(USB_VENDOR_ID_BANDB, BANDB_DEVICE_ID_USOPTL4_4P)},
- {USB_DEVICE(USB_VENDOR_ID_BANDB, BANDB_DEVICE_ID_USOPTL2_4)},
{USB_DEVICE(USB_VENDOR_ID_ATENINTL, ATENINTL_DEVICE_ID_UC2324)},
{USB_DEVICE(USB_VENDOR_ID_ATENINTL, ATENINTL_DEVICE_ID_UC2322)},
{USB_DEVICE(USB_VENDOR_ID_MOXA, MOXA_DEVICE_ID_2210)},
diff --git a/drivers/usb/serial/option.c b/drivers/usb/serial/option.c
index d08b799c91fc..524b3c6e96e2 100644
--- a/drivers/usb/serial/option.c
+++ b/drivers/usb/serial/option.c
@@ -1205,6 +1205,14 @@ static const struct usb_device_id option_ids[] = {
.driver_info = NCTRL(0) | RSVD(1) },
{ USB_DEVICE_INTERFACE_CLASS(TELIT_VENDOR_ID, 0x1056, 0xff), /* Telit FD980 */
.driver_info = NCTRL(2) | RSVD(3) },
+ { USB_DEVICE_INTERFACE_CLASS(TELIT_VENDOR_ID, 0x1060, 0xff), /* Telit LN920 (rmnet) */
+ .driver_info = NCTRL(0) | RSVD(1) | RSVD(2) },
+ { USB_DEVICE_INTERFACE_CLASS(TELIT_VENDOR_ID, 0x1061, 0xff), /* Telit LN920 (MBIM) */
+ .driver_info = NCTRL(0) | RSVD(1) },
+ { USB_DEVICE_INTERFACE_CLASS(TELIT_VENDOR_ID, 0x1062, 0xff), /* Telit LN920 (RNDIS) */
+ .driver_info = NCTRL(2) | RSVD(3) },
+ { USB_DEVICE_INTERFACE_CLASS(TELIT_VENDOR_ID, 0x1063, 0xff), /* Telit LN920 (ECM) */
+ .driver_info = NCTRL(0) | RSVD(1) },
{ USB_DEVICE(TELIT_VENDOR_ID, TELIT_PRODUCT_ME910),
.driver_info = NCTRL(0) | RSVD(1) | RSVD(3) },
{ USB_DEVICE(TELIT_VENDOR_ID, TELIT_PRODUCT_ME910_DUAL_MODEM),
@@ -1650,7 +1658,6 @@ static const struct usb_device_id option_ids[] = {
{ USB_DEVICE_AND_INTERFACE_INFO(ZTE_VENDOR_ID, 0x0060, 0xff, 0xff, 0xff) },
{ USB_DEVICE_AND_INTERFACE_INFO(ZTE_VENDOR_ID, 0x0070, 0xff, 0xff, 0xff) },
{ USB_DEVICE_AND_INTERFACE_INFO(ZTE_VENDOR_ID, 0x0073, 0xff, 0xff, 0xff) },
- { USB_DEVICE_AND_INTERFACE_INFO(ZTE_VENDOR_ID, 0x0094, 0xff, 0xff, 0xff) },
{ USB_DEVICE_AND_INTERFACE_INFO(ZTE_VENDOR_ID, 0x0130, 0xff, 0xff, 0xff),
.driver_info = RSVD(1) },
{ USB_DEVICE_AND_INTERFACE_INFO(ZTE_VENDOR_ID, 0x0133, 0xff, 0xff, 0xff),
@@ -2068,6 +2075,8 @@ static const struct usb_device_id option_ids[] = {
.driver_info = RSVD(0) | RSVD(1) | RSVD(6) },
{ USB_DEVICE(0x0489, 0xe0b5), /* Foxconn T77W968 ESIM */
.driver_info = RSVD(0) | RSVD(1) | RSVD(6) },
+ { USB_DEVICE_INTERFACE_CLASS(0x0489, 0xe0db, 0xff), /* Foxconn T99W265 MBIM */
+ .driver_info = RSVD(3) },
{ USB_DEVICE(0x1508, 0x1001), /* Fibocom NL668 (IOT version) */
.driver_info = RSVD(4) | RSVD(5) | RSVD(6) },
{ USB_DEVICE(0x2cb7, 0x0104), /* Fibocom NL678 series */
diff --git a/drivers/usb/storage/unusual_devs.h b/drivers/usb/storage/unusual_devs.h
index 861153d294b6..7442793fe050 100644
--- a/drivers/usb/storage/unusual_devs.h
+++ b/drivers/usb/storage/unusual_devs.h
@@ -416,9 +416,16 @@ UNUSUAL_DEV( 0x04cb, 0x0100, 0x0000, 0x2210,
USB_SC_UFI, USB_PR_DEVICE, NULL, US_FL_FIX_INQUIRY | US_FL_SINGLE_LUN),
/*
- * Reported by Ondrej Zary <linux@...nbow-software.org>
+ * Reported by Ondrej Zary <linux@...y.sk>
* The device reports one sector more and breaks when that sector is accessed
+ * Firmwares older than 2.6c (the latest one and the only that claims Linux
+ * support) have also broken tag handling
*/
+UNUSUAL_DEV( 0x04ce, 0x0002, 0x0000, 0x026b,
+ "ScanLogic",
+ "SL11R-IDE",
+ USB_SC_DEVICE, USB_PR_DEVICE, NULL,
+ US_FL_FIX_CAPACITY | US_FL_BULK_IGNORE_TAG),
UNUSUAL_DEV( 0x04ce, 0x0002, 0x026c, 0x026c,
"ScanLogic",
"SL11R-IDE",
diff --git a/drivers/usb/storage/unusual_uas.h b/drivers/usb/storage/unusual_uas.h
index c7db6c943ba5..2f72753c3e22 100644
--- a/drivers/usb/storage/unusual_uas.h
+++ b/drivers/usb/storage/unusual_uas.h
@@ -50,7 +50,7 @@ UNUSUAL_DEV(0x059f, 0x1061, 0x0000, 0x9999,
"LaCie",
"Rugged USB3-FW",
USB_SC_DEVICE, USB_PR_DEVICE, NULL,
- US_FL_IGNORE_UAS),
+ US_FL_NO_REPORT_OPCODES | US_FL_NO_SAME),
/*
* Apricorn USB3 dongle sometimes returns "USBSUSBSUSBS" in response to SCSI
diff --git a/drivers/xen/balloon.c b/drivers/xen/balloon.c
index b23edf64c2b2..2459e2afd65e 100644
--- a/drivers/xen/balloon.c
+++ b/drivers/xen/balloon.c
@@ -43,6 +43,8 @@
#include <linux/sched.h>
#include <linux/cred.h>
#include <linux/errno.h>
+#include <linux/freezer.h>
+#include <linux/kthread.h>
#include <linux/mm.h>
#include <linux/bootmem.h>
#include <linux/pagemap.h>
@@ -120,7 +122,7 @@ static struct ctl_table xen_root[] = {
#define EXTENT_ORDER (fls(XEN_PFN_PER_PAGE) - 1)
/*
- * balloon_process() state:
+ * balloon_thread() state:
*
* BP_DONE: done or nothing to do,
* BP_WAIT: wait to be rescheduled,
@@ -135,6 +137,8 @@ enum bp_state {
BP_ECANCELED
};
+/* Main waiting point for xen-balloon thread. */
+static DECLARE_WAIT_QUEUE_HEAD(balloon_thread_wq);
static DEFINE_MUTEX(balloon_mutex);
@@ -149,10 +153,6 @@ static xen_pfn_t frame_list[PAGE_SIZE / sizeof(xen_pfn_t)];
static LIST_HEAD(ballooned_pages);
static DECLARE_WAIT_QUEUE_HEAD(balloon_wq);
-/* Main work function, always executed in process context. */
-static void balloon_process(struct work_struct *work);
-static DECLARE_DELAYED_WORK(balloon_worker, balloon_process);
-
/* When ballooning out (allocating memory to return to Xen) we don't really
want the kernel to try too hard since that can trigger the oom killer. */
#define GFP_BALLOON \
@@ -383,7 +383,7 @@ static void xen_online_page(struct page *page)
static int xen_memory_notifier(struct notifier_block *nb, unsigned long val, void *v)
{
if (val == MEM_ONLINE)
- schedule_delayed_work(&balloon_worker, 0);
+ wake_up(&balloon_thread_wq);
return NOTIFY_OK;
}
@@ -508,18 +508,43 @@ static enum bp_state decrease_reservation(unsigned long nr_pages, gfp_t gfp)
}
/*
- * As this is a work item it is guaranteed to run as a single instance only.
+ * Stop waiting if either state is not BP_EAGAIN and ballooning action is
+ * needed, or if the credit has changed while state is BP_EAGAIN.
+ */
+static bool balloon_thread_cond(enum bp_state state, long credit)
+{
+ if (state != BP_EAGAIN)
+ credit = 0;
+
+ return current_credit() != credit || kthread_should_stop();
+}
+
+/*
+ * As this is a kthread it is guaranteed to run as a single instance only.
* We may of course race updates of the target counts (which are protected
* by the balloon lock), or with changes to the Xen hard limit, but we will
* recover from these in time.
*/
-static void balloon_process(struct work_struct *work)
+static int balloon_thread(void *unused)
{
enum bp_state state = BP_DONE;
long credit;
+ unsigned long timeout;
+
+ set_freezable();
+ for (;;) {
+ if (state == BP_EAGAIN)
+ timeout = balloon_stats.schedule_delay * HZ;
+ else
+ timeout = 3600 * HZ;
+ credit = current_credit();
+ wait_event_freezable_timeout(balloon_thread_wq,
+ balloon_thread_cond(state, credit), timeout);
+
+ if (kthread_should_stop())
+ return 0;
- do {
mutex_lock(&balloon_mutex);
credit = current_credit();
@@ -546,12 +571,7 @@ static void balloon_process(struct work_struct *work)
mutex_unlock(&balloon_mutex);
cond_resched();
-
- } while (credit && state == BP_DONE);
-
- /* Schedule more work if there is some still to be done. */
- if (state == BP_EAGAIN)
- schedule_delayed_work(&balloon_worker, balloon_stats.schedule_delay * HZ);
+ }
}
/* Resets the Xen limit, sets new target, and kicks off processing. */
@@ -559,7 +579,7 @@ void balloon_set_new_target(unsigned long target)
{
/* No need for lock. Not read-modify-write updates. */
balloon_stats.target_pages = target;
- schedule_delayed_work(&balloon_worker, 0);
+ wake_up(&balloon_thread_wq);
}
EXPORT_SYMBOL_GPL(balloon_set_new_target);
@@ -664,7 +684,7 @@ void free_xenballooned_pages(int nr_pages, struct page **pages)
/* The balloon may be too large now. Shrink it if needed. */
if (current_credit())
- schedule_delayed_work(&balloon_worker, 0);
+ wake_up(&balloon_thread_wq);
mutex_unlock(&balloon_mutex);
}
@@ -698,6 +718,8 @@ static void __init balloon_add_region(unsigned long start_pfn,
static int __init balloon_init(void)
{
+ struct task_struct *task;
+
if (!xen_domain())
return -ENODEV;
@@ -741,6 +763,12 @@ static int __init balloon_init(void)
}
#endif
+ task = kthread_run(balloon_thread, NULL, "xen-balloon");
+ if (IS_ERR(task)) {
+ pr_err("xen-balloon thread could not be started, ballooning will not work!\n");
+ return PTR_ERR(task);
+ }
+
/* Init the xen-balloon driver. */
xen_balloon_init();
diff --git a/fs/binfmt_elf.c b/fs/binfmt_elf.c
index 975dd0dbc252..c41c568ad1b8 100644
--- a/fs/binfmt_elf.c
+++ b/fs/binfmt_elf.c
@@ -580,7 +580,7 @@ static unsigned long load_elf_interp(struct elfhdr *interp_elf_ex,
elf_prot |= PROT_EXEC;
vaddr = eppnt->p_vaddr;
if (interp_elf_ex->e_type == ET_EXEC || load_addr_set)
- elf_type |= MAP_FIXED_NOREPLACE;
+ elf_type |= MAP_FIXED;
else if (no_base && interp_elf_ex->e_type == ET_DYN)
load_addr = -vaddr;
diff --git a/fs/cifs/connect.c b/fs/cifs/connect.c
index 6285085195c1..b5aba1c895cb 100644
--- a/fs/cifs/connect.c
+++ b/fs/cifs/connect.c
@@ -3374,9 +3374,10 @@ cifs_match_super(struct super_block *sb, void *data)
spin_lock(&cifs_tcp_ses_lock);
cifs_sb = CIFS_SB(sb);
tlink = cifs_get_tlink(cifs_sb_master_tlink(cifs_sb));
- if (IS_ERR(tlink)) {
+ if (tlink == NULL) {
+ /* can not match superblock if tlink were ever null */
spin_unlock(&cifs_tcp_ses_lock);
- return rc;
+ return 0;
}
tcon = tlink_tcon(tlink);
ses = tcon->ses;
diff --git a/fs/ext4/dir.c b/fs/ext4/dir.c
index ae520a726339..aed33af7551e 100644
--- a/fs/ext4/dir.c
+++ b/fs/ext4/dir.c
@@ -535,7 +535,7 @@ static int ext4_dx_readdir(struct file *file, struct dir_context *ctx)
struct dir_private_info *info = file->private_data;
struct inode *inode = file_inode(file);
struct fname *fname;
- int ret;
+ int ret = 0;
if (!info) {
info = ext4_htree_create_dir_info(file, ctx->pos);
@@ -583,7 +583,7 @@ static int ext4_dx_readdir(struct file *file, struct dir_context *ctx)
info->curr_minor_hash,
&info->next_hash);
if (ret < 0)
- return ret;
+ goto finished;
if (ret == 0) {
ctx->pos = ext4_get_htree_eof(file);
break;
@@ -614,7 +614,7 @@ static int ext4_dx_readdir(struct file *file, struct dir_context *ctx)
}
finished:
info->last_pos = ctx->pos;
- return 0;
+ return ret < 0 ? ret : 0;
}
static int ext4_dir_open(struct inode * inode, struct file * filp)
diff --git a/fs/ocfs2/dlmglue.c b/fs/ocfs2/dlmglue.c
index 8149fb6f1f0d..a906f47ce1ba 100644
--- a/fs/ocfs2/dlmglue.c
+++ b/fs/ocfs2/dlmglue.c
@@ -3907,7 +3907,7 @@ static int ocfs2_data_convert_worker(struct ocfs2_lock_res *lockres,
oi = OCFS2_I(inode);
oi->ip_dir_lock_gen++;
mlog(0, "generation: %u\n", oi->ip_dir_lock_gen);
- goto out;
+ goto out_forget;
}
if (!S_ISREG(inode->i_mode))
@@ -3938,6 +3938,7 @@ static int ocfs2_data_convert_worker(struct ocfs2_lock_res *lockres,
filemap_fdatawait(mapping);
}
+out_forget:
forget_all_cached_acls(inode);
out:
diff --git a/fs/qnx4/dir.c b/fs/qnx4/dir.c
index a6ee23aadd28..66645a5a35f3 100644
--- a/fs/qnx4/dir.c
+++ b/fs/qnx4/dir.c
@@ -15,13 +15,48 @@
#include <linux/buffer_head.h>
#include "qnx4.h"
+/*
+ * A qnx4 directory entry is an inode entry or link info
+ * depending on the status field in the last byte. The
+ * first byte is where the name start either way, and a
+ * zero means it's empty.
+ *
+ * Also, due to a bug in gcc, we don't want to use the
+ * real (differently sized) name arrays in the inode and
+ * link entries, but always the 'de_name[]' one in the
+ * fake struct entry.
+ *
+ * See
+ *
+ * https://gcc.gnu.org/bugzilla/show_bug.cgi?id=99578#c6
+ *
+ * for details, but basically gcc will take the size of the
+ * 'name' array from one of the used union entries randomly.
+ *
+ * This use of 'de_name[]' (48 bytes) avoids the false positive
+ * warnings that would happen if gcc decides to use 'inode.di_name'
+ * (16 bytes) even when the pointer and size were to come from
+ * 'link.dl_name' (48 bytes).
+ *
+ * In all cases the actual name pointer itself is the same, it's
+ * only the gcc internal 'what is the size of this field' logic
+ * that can get confused.
+ */
+union qnx4_directory_entry {
+ struct {
+ const char de_name[48];
+ u8 de_pad[15];
+ u8 de_status;
+ };
+ struct qnx4_inode_entry inode;
+ struct qnx4_link_info link;
+};
+
static int qnx4_readdir(struct file *file, struct dir_context *ctx)
{
struct inode *inode = file_inode(file);
unsigned int offset;
struct buffer_head *bh;
- struct qnx4_inode_entry *de;
- struct qnx4_link_info *le;
unsigned long blknum;
int ix, ino;
int size;
@@ -38,27 +73,27 @@ static int qnx4_readdir(struct file *file, struct dir_context *ctx)
}
ix = (ctx->pos >> QNX4_DIR_ENTRY_SIZE_BITS) % QNX4_INODES_PER_BLOCK;
for (; ix < QNX4_INODES_PER_BLOCK; ix++, ctx->pos += QNX4_DIR_ENTRY_SIZE) {
+ union qnx4_directory_entry *de;
+
offset = ix * QNX4_DIR_ENTRY_SIZE;
- de = (struct qnx4_inode_entry *) (bh->b_data + offset);
- if (!de->di_fname[0])
+ de = (union qnx4_directory_entry *) (bh->b_data + offset);
+
+ if (!de->de_name[0])
continue;
- if (!(de->di_status & (QNX4_FILE_USED|QNX4_FILE_LINK)))
+ if (!(de->de_status & (QNX4_FILE_USED|QNX4_FILE_LINK)))
continue;
- if (!(de->di_status & QNX4_FILE_LINK))
- size = QNX4_SHORT_NAME_MAX;
- else
- size = QNX4_NAME_MAX;
- size = strnlen(de->di_fname, size);
- QNX4DEBUG((KERN_INFO "qnx4_readdir:%.*s\n", size, de->di_fname));
- if (!(de->di_status & QNX4_FILE_LINK))
+ if (!(de->de_status & QNX4_FILE_LINK)) {
+ size = sizeof(de->inode.di_fname);
ino = blknum * QNX4_INODES_PER_BLOCK + ix - 1;
- else {
- le = (struct qnx4_link_info*)de;
- ino = ( le32_to_cpu(le->dl_inode_blk) - 1 ) *
+ } else {
+ size = sizeof(de->link.dl_fname);
+ ino = ( le32_to_cpu(de->link.dl_inode_blk) - 1 ) *
QNX4_INODES_PER_BLOCK +
- le->dl_inode_ndx;
+ de->link.dl_inode_ndx;
}
- if (!dir_emit(ctx, de->di_fname, size, ino, DT_UNKNOWN)) {
+ size = strnlen(de->de_name, size);
+ QNX4DEBUG((KERN_INFO "qnx4_readdir:%.*s\n", size, name));
+ if (!dir_emit(ctx, de->de_name, size, ino, DT_UNKNOWN)) {
brelse(bh);
return 0;
}
diff --git a/include/linux/compiler.h b/include/linux/compiler.h
index 6a53300cbd1e..ab9dfb14f486 100644
--- a/include/linux/compiler.h
+++ b/include/linux/compiler.h
@@ -228,6 +228,8 @@ void ftrace_likely_update(struct ftrace_likely_data *f, int val,
(typeof(ptr)) (__ptr + (off)); })
#endif
+#define absolute_pointer(val) RELOC_HIDE((void *)(val), 0)
+
#ifndef OPTIMIZER_HIDE_VAR
/* Make the optimizer believe the variable can be manipulated arbitrarily. */
#define OPTIMIZER_HIDE_VAR(var) \
diff --git a/include/linux/cred.h b/include/linux/cred.h
index 1dc351d8548b..4b081e4911c8 100644
--- a/include/linux/cred.h
+++ b/include/linux/cred.h
@@ -240,7 +240,7 @@ static inline struct cred *get_new_cred(struct cred *cred)
* @cred: The credentials to reference
*
* Get a reference on the specified set of credentials. The caller must
- * release the reference.
+ * release the reference. If %NULL is passed, it is returned with no action.
*
* This is used to deal with a committed set of credentials. Although the
* pointer is const, this will temporarily discard the const and increment the
@@ -251,6 +251,8 @@ static inline struct cred *get_new_cred(struct cred *cred)
static inline const struct cred *get_cred(const struct cred *cred)
{
struct cred *nonconst_cred = (struct cred *) cred;
+ if (!cred)
+ return cred;
validate_creds(cred);
nonconst_cred->non_rcu = 0;
return get_new_cred(nonconst_cred);
@@ -261,7 +263,7 @@ static inline const struct cred *get_cred(const struct cred *cred)
* @cred: The credentials to release
*
* Release a reference to a set of credentials, deleting them when the last ref
- * is released.
+ * is released. If %NULL is passed, nothing is done.
*
* This takes a const pointer to a set of credentials because the credentials
* on task_struct are attached by const pointers to prevent accidental
@@ -271,9 +273,11 @@ static inline void put_cred(const struct cred *_cred)
{
struct cred *cred = (struct cred *) _cred;
- validate_creds(cred);
- if (atomic_dec_and_test(&(cred)->usage))
- __put_cred(cred);
+ if (cred) {
+ validate_creds(cred);
+ if (atomic_dec_and_test(&(cred)->usage))
+ __put_cred(cred);
+ }
}
/**
diff --git a/include/net/sock.h b/include/net/sock.h
index 351749c694ce..75677050c82e 100644
--- a/include/net/sock.h
+++ b/include/net/sock.h
@@ -471,8 +471,10 @@ struct sock {
u32 sk_ack_backlog;
u32 sk_max_ack_backlog;
kuid_t sk_uid;
+ spinlock_t sk_peer_lock;
struct pid *sk_peer_pid;
const struct cred *sk_peer_cred;
+
long sk_rcvtimeo;
ktime_t sk_stamp;
#if BITS_PER_LONG==32
diff --git a/kernel/sched/cpufreq_schedutil.c b/kernel/sched/cpufreq_schedutil.c
index 1b7ec822dc75..60f0e0e048f0 100644
--- a/kernel/sched/cpufreq_schedutil.c
+++ b/kernel/sched/cpufreq_schedutil.c
@@ -591,9 +591,17 @@ static struct attribute *sugov_attributes[] = {
NULL
};
+static void sugov_tunables_free(struct kobject *kobj)
+{
+ struct gov_attr_set *attr_set = container_of(kobj, struct gov_attr_set, kobj);
+
+ kfree(to_sugov_tunables(attr_set));
+}
+
static struct kobj_type sugov_tunables_ktype = {
.default_attrs = sugov_attributes,
.sysfs_ops = &governor_sysfs_ops,
+ .release = &sugov_tunables_free,
};
/********************** cpufreq governor interface *********************/
@@ -693,12 +701,10 @@ static struct sugov_tunables *sugov_tunables_alloc(struct sugov_policy *sg_polic
return tunables;
}
-static void sugov_tunables_free(struct sugov_tunables *tunables)
+static void sugov_clear_global_tunables(void)
{
if (!have_governor_per_policy())
global_tunables = NULL;
-
- kfree(tunables);
}
static int sugov_init(struct cpufreq_policy *policy)
@@ -761,7 +767,7 @@ static int sugov_init(struct cpufreq_policy *policy)
fail:
kobject_put(&tunables->attr_set.kobj);
policy->governor_data = NULL;
- sugov_tunables_free(tunables);
+ sugov_clear_global_tunables();
stop_kthread:
sugov_kthread_stop(sg_policy);
@@ -788,7 +794,7 @@ static void sugov_exit(struct cpufreq_policy *policy)
count = gov_attr_set_put(&tunables->attr_set, &sg_policy->tunables_hook);
policy->governor_data = NULL;
if (!count)
- sugov_tunables_free(tunables);
+ sugov_clear_global_tunables();
mutex_unlock(&global_tunables_lock);
diff --git a/kernel/trace/blktrace.c b/kernel/trace/blktrace.c
index 645048bb1e86..75ea1a5be31a 100644
--- a/kernel/trace/blktrace.c
+++ b/kernel/trace/blktrace.c
@@ -1661,6 +1661,14 @@ static int blk_trace_remove_queue(struct request_queue *q)
if (bt == NULL)
return -EINVAL;
+ if (bt->trace_state == Blktrace_running) {
+ bt->trace_state = Blktrace_stopped;
+ spin_lock_irq(&running_trace_lock);
+ list_del_init(&bt->running_list);
+ spin_unlock_irq(&running_trace_lock);
+ relay_flush(bt->rchan);
+ }
+
put_probe_ref();
synchronize_rcu();
blk_trace_free(bt);
diff --git a/net/core/sock.c b/net/core/sock.c
index 956af38aa0d6..41a77027a549 100644
--- a/net/core/sock.c
+++ b/net/core/sock.c
@@ -1057,6 +1057,16 @@ int sock_setsockopt(struct socket *sock, int level, int optname,
}
EXPORT_SYMBOL(sock_setsockopt);
+static const struct cred *sk_get_peer_cred(struct sock *sk)
+{
+ const struct cred *cred;
+
+ spin_lock(&sk->sk_peer_lock);
+ cred = get_cred(sk->sk_peer_cred);
+ spin_unlock(&sk->sk_peer_lock);
+
+ return cred;
+}
static void cred_to_ucred(struct pid *pid, const struct cred *cred,
struct ucred *ucred)
@@ -1231,7 +1241,11 @@ int sock_getsockopt(struct socket *sock, int level, int optname,
struct ucred peercred;
if (len > sizeof(peercred))
len = sizeof(peercred);
+
+ spin_lock(&sk->sk_peer_lock);
cred_to_ucred(sk->sk_peer_pid, sk->sk_peer_cred, &peercred);
+ spin_unlock(&sk->sk_peer_lock);
+
if (copy_to_user(optval, &peercred, len))
return -EFAULT;
goto lenout;
@@ -1239,20 +1253,23 @@ int sock_getsockopt(struct socket *sock, int level, int optname,
case SO_PEERGROUPS:
{
+ const struct cred *cred;
int ret, n;
- if (!sk->sk_peer_cred)
+ cred = sk_get_peer_cred(sk);
+ if (!cred)
return -ENODATA;
- n = sk->sk_peer_cred->group_info->ngroups;
+ n = cred->group_info->ngroups;
if (len < n * sizeof(gid_t)) {
len = n * sizeof(gid_t);
+ put_cred(cred);
return put_user(len, optlen) ? -EFAULT : -ERANGE;
}
len = n * sizeof(gid_t);
- ret = groups_to_user((gid_t __user *)optval,
- sk->sk_peer_cred->group_info);
+ ret = groups_to_user((gid_t __user *)optval, cred->group_info);
+ put_cred(cred);
if (ret)
return ret;
goto lenout;
@@ -1576,9 +1593,10 @@ static void __sk_destruct(struct rcu_head *head)
sk->sk_frag.page = NULL;
}
- if (sk->sk_peer_cred)
- put_cred(sk->sk_peer_cred);
+ /* We do not need to acquire sk->sk_peer_lock, we are the last user. */
+ put_cred(sk->sk_peer_cred);
put_pid(sk->sk_peer_pid);
+
if (likely(sk->sk_net_refcnt))
put_net(sock_net(sk));
sk_prot_free(sk->sk_prot_creator, sk);
@@ -2826,6 +2844,8 @@ void sock_init_data(struct socket *sock, struct sock *sk)
sk->sk_peer_pid = NULL;
sk->sk_peer_cred = NULL;
+ spin_lock_init(&sk->sk_peer_lock);
+
sk->sk_write_pending = 0;
sk->sk_rcvlowat = 1;
sk->sk_rcvtimeo = MAX_SCHEDULE_TIMEOUT;
diff --git a/net/ipv4/tcp_input.c b/net/ipv4/tcp_input.c
index 5117e0aeea1a..757e1f60e00d 100644
--- a/net/ipv4/tcp_input.c
+++ b/net/ipv4/tcp_input.c
@@ -581,10 +581,12 @@ static inline void tcp_rcv_rtt_measure_ts(struct sock *sk,
u32 delta = tcp_time_stamp(tp) - tp->rx_opt.rcv_tsecr;
u32 delta_us;
- if (!delta)
- delta = 1;
- delta_us = delta * (USEC_PER_SEC / TCP_TS_HZ);
- tcp_rcv_rtt_update(tp, delta_us, 0);
+ if (likely(delta < INT_MAX / (USEC_PER_SEC / TCP_TS_HZ))) {
+ if (!delta)
+ delta = 1;
+ delta_us = delta * (USEC_PER_SEC / TCP_TS_HZ);
+ tcp_rcv_rtt_update(tp, delta_us, 0);
+ }
}
}
@@ -2931,9 +2933,11 @@ static bool tcp_ack_update_rtt(struct sock *sk, const int flag,
if (seq_rtt_us < 0 && tp->rx_opt.saw_tstamp && tp->rx_opt.rcv_tsecr &&
flag & FLAG_ACKED) {
u32 delta = tcp_time_stamp(tp) - tp->rx_opt.rcv_tsecr;
- u32 delta_us = delta * (USEC_PER_SEC / TCP_TS_HZ);
- seq_rtt_us = ca_rtt_us = delta_us;
+ if (likely(delta < INT_MAX / (USEC_PER_SEC / TCP_TS_HZ))) {
+ seq_rtt_us = delta * (USEC_PER_SEC / TCP_TS_HZ);
+ ca_rtt_us = seq_rtt_us;
+ }
}
rs->rtt_us = ca_rtt_us; /* RTT of last (S)ACKed packet (or -1) */
if (seq_rtt_us < 0)
diff --git a/net/ipv4/tcp_output.c b/net/ipv4/tcp_output.c
index d55ee43cd1b8..941c655cad91 100644
--- a/net/ipv4/tcp_output.c
+++ b/net/ipv4/tcp_output.c
@@ -2958,13 +2958,12 @@ int tcp_retransmit_skb(struct sock *sk, struct sk_buff *skb, int segs)
#endif
TCP_SKB_CB(skb)->sacked |= TCPCB_RETRANS;
tp->retrans_out += tcp_skb_pcount(skb);
-
- /* Save stamp of the first retransmit. */
- if (!tp->retrans_stamp)
- tp->retrans_stamp = tcp_skb_timestamp(skb);
-
}
+ /* Save stamp of the first (attempted) retransmit. */
+ if (!tp->retrans_stamp)
+ tp->retrans_stamp = tcp_skb_timestamp(skb);
+
if (tp->undo_retrans < 0)
tp->undo_retrans = 0;
tp->undo_retrans += tcp_skb_pcount(skb);
diff --git a/net/ipv4/tcp_timer.c b/net/ipv4/tcp_timer.c
index 681882a40968..d071ed6b8b9a 100644
--- a/net/ipv4/tcp_timer.c
+++ b/net/ipv4/tcp_timer.c
@@ -22,33 +22,21 @@
#include <linux/gfp.h>
#include <net/tcp.h>
-static u32 tcp_retransmit_stamp(const struct sock *sk)
-{
- u32 start_ts = tcp_sk(sk)->retrans_stamp;
-
- if (unlikely(!start_ts)) {
- struct sk_buff *head = tcp_rtx_queue_head(sk);
-
- if (!head)
- return 0;
- start_ts = tcp_skb_timestamp(head);
- }
- return start_ts;
-}
-
static u32 tcp_clamp_rto_to_user_timeout(const struct sock *sk)
{
struct inet_connection_sock *icsk = inet_csk(sk);
u32 elapsed, start_ts;
+ s32 remaining;
- start_ts = tcp_retransmit_stamp(sk);
- if (!icsk->icsk_user_timeout || !start_ts)
+ start_ts = tcp_sk(sk)->retrans_stamp;
+ if (!icsk->icsk_user_timeout)
return icsk->icsk_rto;
elapsed = tcp_time_stamp(tcp_sk(sk)) - start_ts;
- if (elapsed >= icsk->icsk_user_timeout)
+ remaining = icsk->icsk_user_timeout - elapsed;
+ if (remaining <= 0)
return 1; /* user timeout has passed; fire ASAP */
- else
- return min_t(u32, icsk->icsk_rto, msecs_to_jiffies(icsk->icsk_user_timeout - elapsed));
+
+ return min_t(u32, icsk->icsk_rto, msecs_to_jiffies(remaining));
}
/**
@@ -172,7 +160,20 @@ static void tcp_mtu_probing(struct inet_connection_sock *icsk, struct sock *sk)
tcp_sync_mss(sk, icsk->icsk_pmtu_cookie);
}
+static unsigned int tcp_model_timeout(struct sock *sk,
+ unsigned int boundary,
+ unsigned int rto_base)
+{
+ unsigned int linear_backoff_thresh, timeout;
+ linear_backoff_thresh = ilog2(TCP_RTO_MAX / rto_base);
+ if (boundary <= linear_backoff_thresh)
+ timeout = ((2 << boundary) - 1) * rto_base;
+ else
+ timeout = ((2 << linear_backoff_thresh) - 1) * rto_base +
+ (boundary - linear_backoff_thresh) * TCP_RTO_MAX;
+ return jiffies_to_msecs(timeout);
+}
/**
* retransmits_timed_out() - returns true if this connection has timed out
* @sk: The current socket
@@ -190,27 +191,21 @@ static bool retransmits_timed_out(struct sock *sk,
unsigned int boundary,
unsigned int timeout)
{
- const unsigned int rto_base = TCP_RTO_MIN;
- unsigned int linear_backoff_thresh, start_ts;
+ unsigned int start_ts;
if (!inet_csk(sk)->icsk_retransmits)
return false;
- start_ts = tcp_retransmit_stamp(sk);
- if (!start_ts)
- return false;
-
+ start_ts = tcp_sk(sk)->retrans_stamp;
if (likely(timeout == 0)) {
- linear_backoff_thresh = ilog2(TCP_RTO_MAX/rto_base);
-
- if (boundary <= linear_backoff_thresh)
- timeout = ((2 << boundary) - 1) * rto_base;
- else
- timeout = ((2 << linear_backoff_thresh) - 1) * rto_base +
- (boundary - linear_backoff_thresh) * TCP_RTO_MAX;
- timeout = jiffies_to_msecs(timeout);
+ unsigned int rto_base = TCP_RTO_MIN;
+
+ if ((1 << sk->sk_state) & (TCPF_SYN_SENT | TCPF_SYN_RECV))
+ rto_base = tcp_timeout_init(sk);
+ timeout = tcp_model_timeout(sk, boundary, rto_base);
}
- return (tcp_time_stamp(tcp_sk(sk)) - start_ts) >= timeout;
+
+ return (s32)(tcp_time_stamp(tcp_sk(sk)) - start_ts - timeout) >= 0;
}
/* A write timeout has occurred. Process the after effects. */
diff --git a/net/ipv4/udp.c b/net/ipv4/udp.c
index 32f0d1bb3b6d..e62de979ee30 100644
--- a/net/ipv4/udp.c
+++ b/net/ipv4/udp.c
@@ -935,7 +935,7 @@ int udp_sendmsg(struct sock *sk, struct msghdr *msg, size_t len)
__be16 dport;
u8 tos;
int err, is_udplite = IS_UDPLITE(sk);
- int corkreq = up->corkflag || msg->msg_flags&MSG_MORE;
+ int corkreq = READ_ONCE(up->corkflag) || msg->msg_flags&MSG_MORE;
int (*getfrag)(void *, char *, int, int, int, struct sk_buff *);
struct sk_buff *skb;
struct ip_options_data opt_copy;
@@ -1243,7 +1243,7 @@ int udp_sendpage(struct sock *sk, struct page *page, int offset,
}
up->len += size;
- if (!(up->corkflag || (flags&MSG_MORE)))
+ if (!(READ_ONCE(up->corkflag) || (flags&MSG_MORE)))
ret = udp_push_pending_frames(sk);
if (!ret)
ret = size;
@@ -2468,9 +2468,9 @@ int udp_lib_setsockopt(struct sock *sk, int level, int optname,
switch (optname) {
case UDP_CORK:
if (val != 0) {
- up->corkflag = 1;
+ WRITE_ONCE(up->corkflag, 1);
} else {
- up->corkflag = 0;
+ WRITE_ONCE(up->corkflag, 0);
lock_sock(sk);
push_pending_frames(sk);
release_sock(sk);
@@ -2583,7 +2583,7 @@ int udp_lib_getsockopt(struct sock *sk, int level, int optname,
switch (optname) {
case UDP_CORK:
- val = up->corkflag;
+ val = READ_ONCE(up->corkflag);
break;
case UDP_ENCAP:
diff --git a/net/ipv6/udp.c b/net/ipv6/udp.c
index 042ab5428a4f..0198910c2bf2 100644
--- a/net/ipv6/udp.c
+++ b/net/ipv6/udp.c
@@ -1169,7 +1169,7 @@ int udpv6_sendmsg(struct sock *sk, struct msghdr *msg, size_t len)
int addr_len = msg->msg_namelen;
bool connected = false;
int ulen = len;
- int corkreq = up->corkflag || msg->msg_flags&MSG_MORE;
+ int corkreq = READ_ONCE(up->corkflag) || msg->msg_flags&MSG_MORE;
int err;
int is_udplite = IS_UDPLITE(sk);
int (*getfrag)(void *, char *, int, int, int, struct sk_buff *);
diff --git a/net/mac80211/tx.c b/net/mac80211/tx.c
index 5c5908127fcb..74045e927e04 100644
--- a/net/mac80211/tx.c
+++ b/net/mac80211/tx.c
@@ -2126,7 +2126,11 @@ static bool ieee80211_parse_tx_radiotap(struct ieee80211_local *local,
}
vht_mcs = iterator.this_arg[4] >> 4;
+ if (vht_mcs > 11)
+ vht_mcs = 0;
vht_nss = iterator.this_arg[4] & 0xF;
+ if (!vht_nss || vht_nss > 8)
+ vht_nss = 1;
break;
/*
@@ -3264,6 +3268,14 @@ static bool ieee80211_amsdu_aggregate(struct ieee80211_sub_if_data *sdata,
if (!ieee80211_amsdu_prepare_head(sdata, fast_tx, head))
goto out;
+ /* If n == 2, the "while (*frag_tail)" loop above didn't execute
+ * and frag_tail should be &skb_shinfo(head)->frag_list.
+ * However, ieee80211_amsdu_prepare_head() can reallocate it.
+ * Reload frag_tail to have it pointing to the correct place.
+ */
+ if (n == 2)
+ frag_tail = &skb_shinfo(head)->frag_list;
+
/*
* Pad out the previous subframe to a multiple of 4 by adding the
* padding to the next one, that's being added. Note that head->len
diff --git a/net/mac80211/wpa.c b/net/mac80211/wpa.c
index dbeccccf0fdf..b1d2e2b54f85 100644
--- a/net/mac80211/wpa.c
+++ b/net/mac80211/wpa.c
@@ -523,6 +523,9 @@ ieee80211_crypto_ccmp_decrypt(struct ieee80211_rx_data *rx,
return RX_DROP_UNUSABLE;
}
+ /* reload hdr - skb might have been reallocated */
+ hdr = (void *)rx->skb->data;
+
data_len = skb->len - hdrlen - IEEE80211_CCMP_HDR_LEN - mic_len;
if (!rx->sta || data_len < 0)
return RX_DROP_UNUSABLE;
@@ -752,6 +755,9 @@ ieee80211_crypto_gcmp_decrypt(struct ieee80211_rx_data *rx)
return RX_DROP_UNUSABLE;
}
+ /* reload hdr - skb might have been reallocated */
+ hdr = (void *)rx->skb->data;
+
data_len = skb->len - hdrlen - IEEE80211_GCMP_HDR_LEN - mic_len;
if (!rx->sta || data_len < 0)
return RX_DROP_UNUSABLE;
diff --git a/net/netfilter/ipset/ip_set_hash_gen.h b/net/netfilter/ipset/ip_set_hash_gen.h
index 154b40f2f2a8..b4b474556339 100644
--- a/net/netfilter/ipset/ip_set_hash_gen.h
+++ b/net/netfilter/ipset/ip_set_hash_gen.h
@@ -104,11 +104,11 @@ htable_size(u8 hbits)
{
size_t hsize;
- /* We must fit both into u32 in jhash and size_t */
+ /* We must fit both into u32 in jhash and INT_MAX in kvmalloc_node() */
if (hbits > 31)
return 0;
hsize = jhash_size(hbits);
- if ((((size_t)-1) - sizeof(struct htable)) / sizeof(struct hbucket *)
+ if ((INT_MAX - sizeof(struct htable)) / sizeof(struct hbucket *)
< hsize)
return 0;
diff --git a/net/netfilter/ipvs/ip_vs_conn.c b/net/netfilter/ipvs/ip_vs_conn.c
index 5b2b17867cb1..2780a847701e 100644
--- a/net/netfilter/ipvs/ip_vs_conn.c
+++ b/net/netfilter/ipvs/ip_vs_conn.c
@@ -1399,6 +1399,10 @@ int __init ip_vs_conn_init(void)
int idx;
/* Compute size and mask */
+ if (ip_vs_conn_tab_bits < 8 || ip_vs_conn_tab_bits > 20) {
+ pr_info("conn_tab_bits not in [8, 20]. Using default value\n");
+ ip_vs_conn_tab_bits = CONFIG_IP_VS_TAB_BITS;
+ }
ip_vs_conn_tab_size = 1 << ip_vs_conn_tab_bits;
ip_vs_conn_tab_mask = ip_vs_conn_tab_size - 1;
diff --git a/net/sctp/input.c b/net/sctp/input.c
index 8b7c07fc66d4..64dc2923a21b 100644
--- a/net/sctp/input.c
+++ b/net/sctp/input.c
@@ -687,7 +687,7 @@ static int sctp_rcv_ootb(struct sk_buff *skb)
ch = skb_header_pointer(skb, offset, sizeof(*ch), &_ch);
/* Break out if chunk length is less then minimal. */
- if (ntohs(ch->length) < sizeof(_ch))
+ if (!ch || ntohs(ch->length) < sizeof(_ch))
break;
ch_end = offset + SCTP_PAD4(ntohs(ch->length));
diff --git a/net/smc/smc_clc.c b/net/smc/smc_clc.c
index aa9a17ac1f7b..063acfbdcd89 100644
--- a/net/smc/smc_clc.c
+++ b/net/smc/smc_clc.c
@@ -162,7 +162,8 @@ static int smc_clc_prfx_set(struct socket *clcsock,
goto out_rel;
}
/* get address to which the internal TCP socket is bound */
- kernel_getsockname(clcsock, (struct sockaddr *)&addrs);
+ if (kernel_getsockname(clcsock, (struct sockaddr *)&addrs) < 0)
+ goto out_rel;
/* analyze IP specific data of net_device belonging to TCP socket */
addr6 = (struct sockaddr_in6 *)&addrs;
rcu_read_lock();
diff --git a/net/unix/af_unix.c b/net/unix/af_unix.c
index c293a558b0d4..82279dbd2f62 100644
--- a/net/unix/af_unix.c
+++ b/net/unix/af_unix.c
@@ -600,20 +600,42 @@ static void unix_release_sock(struct sock *sk, int embrion)
static void init_peercred(struct sock *sk)
{
- put_pid(sk->sk_peer_pid);
- if (sk->sk_peer_cred)
- put_cred(sk->sk_peer_cred);
+ const struct cred *old_cred;
+ struct pid *old_pid;
+
+ spin_lock(&sk->sk_peer_lock);
+ old_pid = sk->sk_peer_pid;
+ old_cred = sk->sk_peer_cred;
sk->sk_peer_pid = get_pid(task_tgid(current));
sk->sk_peer_cred = get_current_cred();
+ spin_unlock(&sk->sk_peer_lock);
+
+ put_pid(old_pid);
+ put_cred(old_cred);
}
static void copy_peercred(struct sock *sk, struct sock *peersk)
{
- put_pid(sk->sk_peer_pid);
- if (sk->sk_peer_cred)
- put_cred(sk->sk_peer_cred);
+ const struct cred *old_cred;
+ struct pid *old_pid;
+
+ if (sk < peersk) {
+ spin_lock(&sk->sk_peer_lock);
+ spin_lock_nested(&peersk->sk_peer_lock, SINGLE_DEPTH_NESTING);
+ } else {
+ spin_lock(&peersk->sk_peer_lock);
+ spin_lock_nested(&sk->sk_peer_lock, SINGLE_DEPTH_NESTING);
+ }
+ old_pid = sk->sk_peer_pid;
+ old_cred = sk->sk_peer_cred;
sk->sk_peer_pid = get_pid(peersk->sk_peer_pid);
sk->sk_peer_cred = get_cred(peersk->sk_peer_cred);
+
+ spin_unlock(&sk->sk_peer_lock);
+ spin_unlock(&peersk->sk_peer_lock);
+
+ put_pid(old_pid);
+ put_cred(old_cred);
}
static int unix_listen(struct socket *sock, int backlog)
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