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Merge branch 'x86-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip

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Pull x86 fixes from Ingo Molnar:
 "Misc fixes: a core dumping crash fix, a guess-unwinder regression fix,
  plus three build warning fixes"

* 'x86-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
  x86/unwind: Fix guess-unwinder regression
  x86/build: Annotate die() with noreturn to fix build warning on clang
  x86/platform/olpc: Fix resume handler build warning
  x86/apic/uv: Silence a shift wrapping warning
  x86/coredump: Always use user_regs_struct for compat_elf_gregset_t
This commit is contained in:
Linus Torvalds 2016-12-07 11:39:27 -08:00
commit ea5a9eff96
5 changed files with 12 additions and 9 deletions
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4
arch/x86/include/asm/compat.h
View File

@ -272,7 +272,6 @@ struct compat_shmid64_ds {
/*
* The type of struct elf_prstatus.pr_reg in compatible core dumps.
*/
#ifdef CONFIG_X86_X32_ABI
typedef struct user_regs_struct compat_elf_gregset_t;
/* Full regset -- prstatus on x32, otherwise on ia32 */
@ -281,10 +280,9 @@ typedef struct user_regs_struct compat_elf_gregset_t;
do { *(int *) (((void *) &((S)->pr_reg)) + R) = (V); } \
while (0)
#ifdef CONFIG_X86_X32_ABI
#define COMPAT_USE_64BIT_TIME \
(!!(task_pt_regs(current)->orig_ax & __X32_SYSCALL_BIT))
#else
typedef struct user_regs_struct32 compat_elf_gregset_t;
#endif
/*

4
arch/x86/kernel/apic/x2apic_uv_x.c
View File

@ -815,9 +815,9 @@ static __init void map_mmioh_high_uv3(int index, int min_pnode, int max_pnode)
l = li;
}
addr1 = (base << shift) +
f * (unsigned long)(1 << m_io);
f * (1ULL << m_io);
addr2 = (base << shift) +
(l + 1) * (unsigned long)(1 << m_io);
(l + 1) * (1ULL << m_io);
pr_info("UV: %s[%03d..%03d] NASID 0x%04x ADDR 0x%016lx - 0x%016lx\n",
id, fi, li, lnasid, addr1, addr2);
if (max_io < l)

9
arch/x86/kernel/unwind_guess.c
View File

@ -7,11 +7,13 @@
unsigned long unwind_get_return_address(struct unwind_state *state)
{
unsigned long addr = READ_ONCE_NOCHECK(*state->sp);
unsigned long addr;
if (unwind_done(state))
return 0;
addr = READ_ONCE_NOCHECK(*state->sp);
return ftrace_graph_ret_addr(state->task, &state->graph_idx,
addr, state->sp);
}
@ -25,11 +27,12 @@ bool unwind_next_frame(struct unwind_state *state)
return false;
do {
unsigned long addr = READ_ONCE_NOCHECK(*state->sp);
for (state->sp++; state->sp < info->end; state->sp++) {
unsigned long addr = READ_ONCE_NOCHECK(*state->sp);
for (state->sp++; state->sp < info->end; state->sp++)
if (__kernel_text_address(addr))
return true;
}
state->sp = info->next_sp;

2
arch/x86/platform/olpc/olpc-xo15-sci.c
View File

@ -196,6 +196,7 @@ static int xo15_sci_remove(struct acpi_device *device)
return 0;
}
#ifdef CONFIG_PM_SLEEP
static int xo15_sci_resume(struct device *dev)
{
/* Enable all EC events */
@ -207,6 +208,7 @@ static int xo15_sci_resume(struct device *dev)
return 0;
}
#endif
static SIMPLE_DEV_PM_OPS(xo15_sci_pm, NULL, xo15_sci_resume);

2
arch/x86/tools/relocs.h
View File

@ -16,7 +16,7 @@
#include <regex.h>
#include <tools/le_byteshift.h>
void die(char *fmt, ...);
void die(char *fmt, ...) __attribute__((noreturn));
#define ARRAY_SIZE(x) (sizeof(x) / sizeof((x)[0]))