From: Martin Schwidefsky Date: Thu, 25 Dec 2008 12:39:26 +0000 (+0100) Subject: [S390] clear_table inline assembly contraints X-Git-Tag: v2.6.29-rc1~584^2~29 X-Git-Url: http://pilppa.com/gitweb/?a=commitdiff_plain;h=4f7e90d6d61fa0e56821787521c12f8a626c4037;p=linux-2.6-omap-h63xx.git [S390] clear_table inline assembly contraints Tell the compile that the clear_table inline assembly writes to the memory referenced by *s. Signed-off-by: Martin Schwidefsky --- diff --git a/arch/s390/include/asm/pgalloc.h b/arch/s390/include/asm/pgalloc.h index f5b2bf3d7c1..b2658b9220f 100644 --- a/arch/s390/include/asm/pgalloc.h +++ b/arch/s390/include/asm/pgalloc.h @@ -28,6 +28,8 @@ void disable_noexec(struct mm_struct *, struct task_struct *); static inline void clear_table(unsigned long *s, unsigned long val, size_t n) { + typedef struct { char _[n]; } addrtype; + *s = val; n = (n / 256) - 1; asm volatile( @@ -39,7 +41,8 @@ static inline void clear_table(unsigned long *s, unsigned long val, size_t n) "0: mvc 256(256,%0),0(%0)\n" " la %0,256(%0)\n" " brct %1,0b\n" - : "+a" (s), "+d" (n)); + : "+a" (s), "+d" (n), "=m" (*(addrtype *) s) + : "m" (*(addrtype *) s)); } static inline void crst_table_init(unsigned long *crst, unsigned long entry)