From fb092eb63d3aba5b876a51cbe743c1c8a8b37d5b Mon Sep 17 00:00:00 2001 From: Sebastian Andrzej Siewior Date: Fri, 31 May 2019 22:30:09 -0700 Subject: [PATCH] arch/arm/boot/compressed/decompress.c: fix build error due to lz4 changes include/linux/cpumask.h: In function 'cpumask_parse': include/linux/cpumask.h:636:21: error: implicit declaration of function 'strchrnul'; did you mean 'strchr'? [-Werror=implicit-function-declaration] Because arch/arm/boot/compressed/decompress.c does #define _LINUX_STRING_H_ preventing linux/string.h from providing strchrnul. It also #includes asm/string.h, which for arm has a declaration of strchr(), explaining why this didn't use to fail. Link: http://lkml.kernel.org/r/20190528115346.f5a7kn3hdnuf5rts@linutronix.de Fixes: 3713a4e1fdb8d ("include/linux/cpumask.h: fix double string traverse in cpumask_parse") Suggested-by: Rasmus Villemoes Cc: Yury Norov Cc: Thomas Gleixner Cc: Russell King Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds --- arch/arm/boot/compressed/decompress.c | 1 + 1 file changed, 1 insertion(+) diff --git a/arch/arm/boot/compressed/decompress.c b/arch/arm/boot/compressed/decompress.c index c16c1829a5e4..aa075d8372ea 100644 --- a/arch/arm/boot/compressed/decompress.c +++ b/arch/arm/boot/compressed/decompress.c @@ -32,6 +32,7 @@ extern char * strstr(const char * s1, const char *s2); extern size_t strlen(const char *s); extern int memcmp(const void *cs, const void *ct, size_t count); +extern char * strchrnul(const char *, int); #ifdef CONFIG_KERNEL_GZIP #include "../../../../lib/decompress_inflate.c"