---

yaml --- r: 24638 b: refs/heads/master c: 2f25194 h: refs/heads/master v: v3
git-mirror · Mar 28, 2006 · 2410aa1 · 2410aa1
1 parent 401465e
commit 2410aa1
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Showing 3 changed files with 8 additions and 2 deletions.
diff --git a/[refs] b/[refs]
@@ -1,2 +1,2 @@
 ---
-refs/heads/master: 72533db0121e11811366b5a456f4068d1a4d542c
+refs/heads/master: 2f25194dbe0c4b2472ce133ea3e9bcbb14936ae7
diff --git a/trunk/arch/powerpc/kernel/process.c b/trunk/arch/powerpc/kernel/process.c
@@ -770,7 +770,7 @@ int sys_execve(unsigned long a0, unsigned long a1, unsigned long a2,
 	return error;
 }
 
-static int validate_sp(unsigned long sp, struct task_struct *p,
+int validate_sp(unsigned long sp, struct task_struct *p,
 		       unsigned long nbytes)
 {
 	unsigned long stack_page = (unsigned long)task_stack_page(p);
@@ -808,6 +808,8 @@ static int validate_sp(unsigned long sp, struct task_struct *p,
 #define FRAME_MARKER	2
 #endif
 
+EXPORT_SYMBOL(validate_sp);
+
 unsigned long get_wchan(struct task_struct *p)
 {
 	unsigned long ip, sp;

diff --git a/trunk/include/asm-powerpc/processor.h b/trunk/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.
  */