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| author | Matt Fleming <matt.fleming@intel.com> | 2012-11-20 14:07:46 +0100 |
|---|---|---|
| committer | Matt Fleming <matt.fleming@intel.com> | 2012-11-20 21:52:07 +0100 |
| commit | 0f905a43ce955b638139bd84486194770a6a2c08 (patch) | |
| tree | 21756a91c7a08a6aec779926a4c38781071b8d3e | |
| parent | x86: remove dummy long from EFI stub (diff) | |
| download | linux-0f905a43ce955b638139bd84486194770a6a2c08.tar.xz linux-0f905a43ce955b638139bd84486194770a6a2c08.zip | |
x86, efi: Fix processor-specific memcpy() build error
Building for Athlon/Duron/K7 results in the following build error,
arch/x86/boot/compressed/eboot.o: In function `__constant_memcpy3d':
eboot.c:(.text+0x385): undefined reference to `_mmx_memcpy'
arch/x86/boot/compressed/eboot.o: In function `efi_main':
eboot.c:(.text+0x1a22): undefined reference to `_mmx_memcpy'
because the boot stub code doesn't link with the kernel proper, and
therefore doesn't have access to the 3DNow version of memcpy. So,
follow the example of misc.c and #undef memcpy so that we use the
version provided by misc.c.
See https://bugzilla.kernel.org/show_bug.cgi?id=50391
Reported-by: Al Viro <viro@zeniv.linux.org.uk>
Reported-by: Ryan Underwood <nemesis@icequake.net>
Cc: H. Peter Anvin <hpa@zytor.com>
Cc: stable@vger.kernel.org
Signed-off-by: Matt Fleming <matt.fleming@intel.com>
| -rw-r--r-- | arch/x86/boot/compressed/eboot.c | 2 |
1 files changed, 2 insertions, 0 deletions
diff --git a/arch/x86/boot/compressed/eboot.c b/arch/x86/boot/compressed/eboot.c index c760e073963e..e87b0cac14b5 100644 --- a/arch/x86/boot/compressed/eboot.c +++ b/arch/x86/boot/compressed/eboot.c @@ -12,6 +12,8 @@ #include <asm/setup.h> #include <asm/desc.h> +#undef memcpy /* Use memcpy from misc.c */ + #include "eboot.h" static efi_system_table_t *sys_table; |