提交 f137e0b0 编写于 作者: L Linus Torvalds

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

Pull x86 fixes from Thomas Gleixner:
 "A small set of x86 fixes:

   - prevent the kernel from using the EFI reboot method when EFI is
     disabled.

   - two patches addressing clang issues"

* 'x86-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
  x86/boot: Disable the address-of-packed-member compiler warning
  x86/efi: Fix reboot_mode when EFI runtime services are disabled
  x86/boot: #undef memcpy() et al in string.c
......@@ -34,6 +34,7 @@ KBUILD_CFLAGS += $(cflags-y)
KBUILD_CFLAGS += -mno-mmx -mno-sse
KBUILD_CFLAGS += $(call cc-option,-ffreestanding)
KBUILD_CFLAGS += $(call cc-option,-fno-stack-protector)
KBUILD_CFLAGS += $(call cc-disable-warning, address-of-packed-member)
KBUILD_AFLAGS := $(KBUILD_CFLAGS) -D__ASSEMBLY__
GCOV_PROFILE := n
......
......@@ -16,6 +16,15 @@
#include "ctype.h"
#include "string.h"
/*
* Undef these macros so that the functions that we provide
* here will have the correct names regardless of how string.h
* may have chosen to #define them.
*/
#undef memcpy
#undef memset
#undef memcmp
int memcmp(const void *s1, const void *s2, size_t len)
{
bool diff;
......
......@@ -471,12 +471,12 @@ static int __init reboot_init(void)
/*
* The DMI quirks table takes precedence. If no quirks entry
* matches and the ACPI Hardware Reduced bit is set, force EFI
* reboot.
* matches and the ACPI Hardware Reduced bit is set and EFI
* runtime services are enabled, force EFI reboot.
*/
rv = dmi_check_system(reboot_dmi_table);
if (!rv && efi_reboot_required())
if (!rv && efi_reboot_required() && !efi_runtime_disabled())
reboot_type = BOOT_EFI;
return 0;
......
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