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authorIngo Molnar2015-09-30 09:29:27 +0200
committerIngo Molnar2015-09-30 09:29:27 +0200
commitccf79c238f1a06a801b4c4449b9bc8a42be2c7bc (patch)
treee9b0f1a4c2f324c6fb107e276b09894ae480baa6 /arch/x86/include/asm/efi.h
parentx86/hyperv: Fix the build in the !CONFIG_KEXEC_CORE case (diff)
parentLinux 4.3-rc3 (diff)
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Merge tag 'v4.3-rc3' into x86/urgent, before applying dependent fix
Signed-off-by: Ingo Molnar <mingo@kernel.org>
Diffstat (limited to 'arch/x86/include/asm/efi.h')
-rw-r--r--arch/x86/include/asm/efi.h10
1 files changed, 10 insertions, 0 deletions
diff --git a/arch/x86/include/asm/efi.h b/arch/x86/include/asm/efi.h
index 155162ea0e00..ab5f1d447ef9 100644
--- a/arch/x86/include/asm/efi.h
+++ b/arch/x86/include/asm/efi.h
@@ -86,6 +86,16 @@ extern u64 asmlinkage efi_call(void *fp, ...);
extern void __iomem *__init efi_ioremap(unsigned long addr, unsigned long size,
u32 type, u64 attribute);
+/*
+ * CONFIG_KASAN may redefine memset to __memset. __memset function is present
+ * only in kernel binary. Since the EFI stub linked into a separate binary it
+ * doesn't have __memset(). So we should use standard memset from
+ * arch/x86/boot/compressed/string.c. The same applies to memcpy and memmove.
+ */
+#undef memcpy
+#undef memset
+#undef memmove
+
#endif /* CONFIG_X86_32 */
extern struct efi_scratch efi_scratch;