[PATCH 13/18] sysctl extern cleanup - sg

[PATCH 13/18] sysctl extern cleanup - sg

[Dave Young]

Extern declarations in sysctl.c should be move to their own head file,
and then include them in relavant .c files.

Move sg_big_buff extern declaration to scsi/sg.h

Signed-off-by: Dave Young <hidave.darkstar@gmail.com>
---
 include/scsi/sg.h |    5 +++++
 kernel/sysctl.c   |    5 +----
 2 files changed, 6 insertions(+), 4 deletions(-)

--- linux-2.6.32.orig/include/scsi/sg.h	2010-02-20 14:02:18.708258892 +0800
+++ linux-2.6.32/include/scsi/sg.h	2010-02-20 14:39:48.631369361 +0800
@@ -70,6 +70,11 @@ Major new features in SG 3.x driver (cf 
  (for the lk 2.2 series).
 */
 
+#ifdef __KERNEL__
+#if defined(CONFIG_SYSCTL) && defined(CONFIG_CHR_DEV_SG)
+extern int sg_big_buff;
+#endif
+#endif
 
 /* New interface introduced in the 3.x SG drivers follows */
 
--- linux-2.6.32.orig/kernel/sysctl.c	2010-02-20 14:27:50.691439411 +0800
+++ linux-2.6.32/kernel/sysctl.c	2010-02-20 14:38:51.008872869 +0800
@@ -62,6 +62,7 @@
 #include <linux/latencytop.h>
 #include <linux/file.h>
 #include <linux/blk-iopoll.h>
+#include <scsi/sg.h>
 
 #include <asm/uaccess.h>
 #include <asm/processor.h>
@@ -100,10 +101,6 @@ static int min_percpu_pagelist_fract = 8
 
 static int ngroups_max = NGROUPS_MAX;
 
-#ifdef CONFIG_CHR_DEV_SG
-extern int sg_big_buff;
-#endif
-
 #ifdef CONFIG_SPARC
 #include <asm/system.h>
 #endif