From 2f25194dbe0c4b2472ce133ea3e9bcbb14936ae7 Mon Sep 17 00:00:00 2001 From: Anton Blanchard Date: Mon, 27 Mar 2006 11:46:18 +1100 Subject: [PATCH] powerpc: export validate_sp for oprofile calltrace Export validate_sp so we can use it in the oprofile calltrace code. Signed-off-by: Anton Blanchard Signed-off-by: Paul Mackerras --- include/asm-powerpc/processor.h | 4 ++++ 1 file changed, 4 insertions(+) (limited to 'include/asm-powerpc/processor.h') diff --git a/include/asm-powerpc/processor.h b/include/asm-powerpc/processor.h index a64198fcfd0..57643b5b782 100644 --- a/include/asm-powerpc/processor.h +++ b/include/asm-powerpc/processor.h @@ -251,6 +251,10 @@ static inline unsigned long __pack_fe01(unsigned int fpmode) #define cpu_relax() barrier() #endif +/* Check that a certain kernel stack pointer is valid in task_struct p */ +int validate_sp(unsigned long sp, struct task_struct *p, + unsigned long nbytes); + /* * Prefetch macros. */ -- cgit v1.2.3