mm: make vread() and vwrite() declaration

Sparse output following warnings.

mm/vmalloc.c:1436:6: warning: symbol 'vread' was not declared. Should it be static?
mm/vmalloc.c:1474:6: warning: symbol 'vwrite' was not declared. Should it be static?

However, it is used by /dev/kmem. fixed here.

Signed-off-by: KOSAKI Motohiro <kosaki.motohiro@jp.fujitsu.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>

1 files changed, 4 insertions, 0 deletions

diff --git a/include/linux/vmalloc.h b/include/linux/vmalloc.h
index 307b88577eaa..506e7620a986 100644
--- a/include/linux/vmalloc.h
+++ b/include/linux/vmalloc.h
@@ -97,6 +97,10 @@ extern void unmap_kernel_range(unsigned long addr, unsigned long size);
 extern struct vm_struct *alloc_vm_area(size_t size);
 extern void free_vm_area(struct vm_struct *area);
 
+/* for /dev/kmem */
+extern long vread(char *buf, char *addr, unsigned long count);
+extern long vwrite(char *buf, char *addr, unsigned long count);
+
 /*
  *      Internals.  Dont't use..
  */