4.9-stable review patch.  If anyone has any objections, please let me know.

------------------

From: Nicholas Mc Guire <hof...@osadl.org>


[ Upstream commit fac69d0efad08fc15e4dbfc116830782acc0dc9a ]

Add the missing declarations of basic string functions to string.h to allow
a clean build.

Fixes: 5be865661516 ("String-handling functions for the new x86 setup code.")
Signed-off-by: Nicholas Mc Guire <hof...@osadl.org>
Link: 
http://lkml.kernel.org/r/1483781911-21399-1-git-send-email-hof...@osadl.org
Signed-off-by: Thomas Gleixner <t...@linutronix.de>
Signed-off-by: Sasha Levin <alexander.le...@verizon.com>
Signed-off-by: Greg Kroah-Hartman <gre...@linuxfoundation.org>
---
 arch/x86/boot/string.c |    1 +
 arch/x86/boot/string.h |    9 +++++++++
 2 files changed, 10 insertions(+)

--- a/arch/x86/boot/string.c
+++ b/arch/x86/boot/string.c
@@ -14,6 +14,7 @@
 
 #include <linux/types.h>
 #include "ctype.h"
+#include "string.h"
 
 int memcmp(const void *s1, const void *s2, size_t len)
 {
--- a/arch/x86/boot/string.h
+++ b/arch/x86/boot/string.h
@@ -18,4 +18,13 @@ int memcmp(const void *s1, const void *s
 #define memset(d,c,l) __builtin_memset(d,c,l)
 #define memcmp __builtin_memcmp
 
+extern int strcmp(const char *str1, const char *str2);
+extern int strncmp(const char *cs, const char *ct, size_t count);
+extern size_t strlen(const char *s);
+extern char *strstr(const char *s1, const char *s2);
+extern size_t strnlen(const char *s, size_t maxlen);
+extern unsigned int atou(const char *s);
+extern unsigned long long simple_strtoull(const char *cp, char **endp,
+                                         unsigned int base);
+
 #endif /* BOOT_STRING_H */


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