6 files changed, 10 insertions, 9 deletions
diff --git a/arch/x86/boot/Makefile b/arch/x86/boot/Makefile
index 3db07f30636f..57bbf2fb21f6 100644
--- a/arch/x86/boot/Makefile
+++ b/arch/x86/boot/Makefile
@@ -14,6 +14,8 @@
 # Set it to -DSVGA_MODE=NORMAL_VGA if you just want the EGA/VGA mode.
 # The number is the same as you would ordinarily press at bootup.
 
+KASAN_SANITIZE := n
+
 SVGA_MODE	:= -DSVGA_MODE=NORMAL_VGA
 
 targets		:= vmlinux.bin setup.bin setup.elf bzImage
diff --git a/arch/x86/boot/compressed/Makefile b/arch/x86/boot/compressed/Makefile
index ad754b4411f7..843feb3eb20b 100644
--- a/arch/x86/boot/compressed/Makefile
+++ b/arch/x86/boot/compressed/Makefile
@@ -16,6 +16,8 @@
 #	(see scripts/Makefile.lib size_append)
 #	compressed vmlinux.bin.all + u32 size of vmlinux.bin.all
 
+KASAN_SANITIZE := n
+
 targets := vmlinux vmlinux.bin vmlinux.bin.gz vmlinux.bin.bz2 vmlinux.bin.lzma \
 	vmlinux.bin.xz vmlinux.bin.lzo vmlinux.bin.lz4
 
diff --git a/arch/x86/boot/compressed/eboot.c b/arch/x86/boot/compressed/eboot.c
index 92b9a5f2aed6..ef17683484e9 100644
--- a/arch/x86/boot/compressed/eboot.c
+++ b/arch/x86/boot/compressed/eboot.c
@@ -13,8 +13,7 @@
 #include <asm/setup.h>
 #include <asm/desc.h>
 
-#undef memcpy			/* Use memcpy from misc.c */
-
+#include "../string.h"
 #include "eboot.h"
 
 static efi_system_table_t *sys_table;
diff --git a/arch/x86/boot/compressed/misc.h b/arch/x86/boot/compressed/misc.h
index 24e3e569a13c..04477d68403f 100644
--- a/arch/x86/boot/compressed/misc.h
+++ b/arch/x86/boot/compressed/misc.h
@@ -7,6 +7,7 @@
  * we just keep it from happening
  */
 #undef CONFIG_PARAVIRT
+#undef CONFIG_KASAN
 #ifdef CONFIG_X86_32
 #define _ASM_X86_DESC_H 1
 #endif
diff --git a/arch/x86/boot/ctype.h b/arch/x86/boot/ctype.h
index 25e13403193c..020f137df7a2 100644
--- a/arch/x86/boot/ctype.h
+++ b/arch/x86/boot/ctype.h
@@ -1,6 +1,5 @@
-#ifndef BOOT_ISDIGIT_H
-
-#define BOOT_ISDIGIT_H
+#ifndef BOOT_CTYPE_H
+#define BOOT_CTYPE_H
 
 static inline int isdigit(int ch)
 {
diff --git a/arch/x86/boot/early_serial_console.c b/arch/x86/boot/early_serial_console.c
index 5df2869c874b..45a07684bbab 100644
--- a/arch/x86/boot/early_serial_console.c
+++ b/arch/x86/boot/early_serial_console.c
@@ -2,8 +2,6 @@
 
 #define DEFAULT_SERIAL_PORT 0x3f8 /* ttyS0 */
 
-#define XMTRDY          0x20
-
 #define DLAB		0x80
 
 #define TXR             0       /*  Transmit register (WRITE) */
@@ -74,8 +72,8 @@ static void parse_earlyprintk(void)
 			static const int bases[] = { 0x3f8, 0x2f8 };
 			int idx = 0;
 
-			if (!strncmp(arg + pos, "ttyS", 4))
-				pos += 4;
+			/* += strlen("ttyS"); */
+			pos += 4;
 
 			if (arg[pos++] == '1')
 				idx = 1;