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authorIngo Molnar <mingo@kernel.org>2015-10-12 09:51:18 +0200
committerIngo Molnar <mingo@kernel.org>2015-10-12 09:51:18 +0200
commitb9f27c0f4f7db9e5a4ba59228442a75d3177470c (patch)
tree49ab61b7e06a5a592f3541e84d1b5908a1d8030f /arch/x86/include/asm/efi.h
parent9fc4468d546b6eb55b0aa5b04b0c36238ebf57e7 (diff)
parent25cb62b76430a91cc6195f902e61c2cb84ade622 (diff)
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Merge tag 'v4.3-rc5' into timers/core, to pick up fixes before applying new changes
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.h12
1 files changed, 12 insertions, 0 deletions
diff --git a/arch/x86/include/asm/efi.h b/arch/x86/include/asm/efi.h
index 155162ea0e00..ae68be92f755 100644
--- a/arch/x86/include/asm/efi.h
+++ b/arch/x86/include/asm/efi.h
@@ -86,6 +86,18 @@ extern u64 asmlinkage efi_call(void *fp, ...);
extern void __iomem *__init efi_ioremap(unsigned long addr, unsigned long size,
u32 type, u64 attribute);
+#ifdef CONFIG_KASAN
+/*
+ * 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
+
#endif /* CONFIG_X86_32 */
extern struct efi_scratch efi_scratch;