linux-kernel - [PATCH] mm: make vread() and vwrite() declaration

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Date:	Tue, 25 Nov 2008 13:30:56 +0900 (JST)
From:	KOSAKI Motohiro <kosaki.motohiro@...fujitsu.com>
To:	LKML <linux-kernel@...r.kernel.org>, linux-mm <linux-mm@...ck.org>,
	Andrew Morton <akpm@...ux-foundation.org>
Cc:	kosaki.motohiro@...fujitsu.com
Subject: [PATCH] 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@...fujitsu.com>
---
 drivers/char/mem.c      |    3 ---
 include/linux/vmalloc.h |    4 ++++
 2 files changed, 4 insertions(+), 3 deletions(-)

Index: b/drivers/char/mem.c
===================================================================
--- a/drivers/char/mem.c	2008-11-05 01:10:59.000000000 +0900
+++ b/drivers/char/mem.c	2008-11-22 22:09:49.000000000 +0900
@@ -425,9 +425,6 @@ static ssize_t read_oldmem(struct file *
 }
 #endif
 
-extern long vread(char *buf, char *addr, unsigned long count);
-extern long vwrite(char *buf, char *addr, unsigned long count);
-
 #ifdef CONFIG_DEVKMEM
 /*
  * This function reads the *virtual* memory as seen by the kernel.
Index: b/include/linux/vmalloc.h
===================================================================
--- a/include/linux/vmalloc.h	2008-11-05 01:11:55.000000000 +0900
+++ b/include/linux/vmalloc.h	2008-11-22 22:09:28.000000000 +0900
@@ -97,6 +97,10 @@ extern void unmap_kernel_range(unsigned 
 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..
  */


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