linux-kernel - [PATCH v2 01/10] zram: kill unused zram_get_num

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Message-Id: <1370361968-8764-1-git-send-email-jiang.liu@huawei.com>
Date:	Wed,  5 Jun 2013 00:05:59 +0800
From:	Jiang Liu <liuj97@...il.com>
To:	Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
	Nitin Gupta <ngupta@...are.org>,
	Minchan Kim <minchan@...nel.org>,
	Jerome Marchand <jmarchan@...hat.com>
Cc:	Yijing Wang <wangyijing@...wei.com>,
	Jiang Liu <jiang.liu@...wei.com>, devel@...verdev.osuosl.org,
	linux-kernel@...r.kernel.org
Subject: [PATCH v2 01/10] zram: kill unused zram_get_num_devices()

Now there's no caller of zram_get_num_devices(), so kill it.
And change zram_devices to static because it's only used in zram_drv.c.

Signed-off-by: Jiang Liu <jiang.liu@...wei.com>
---
 drivers/staging/zram/zram_drv.c | 7 +------
 drivers/staging/zram/zram_drv.h | 2 --
 2 files changed, 1 insertion(+), 8 deletions(-)

diff --git a/drivers/staging/zram/zram_drv.c b/drivers/staging/zram/zram_drv.c
index e34e3fe..0a07de4 100644
--- a/drivers/staging/zram/zram_drv.c
+++ b/drivers/staging/zram/zram_drv.c
@@ -37,7 +37,7 @@
 
 /* Globals */
 static int zram_major;
-struct zram *zram_devices;
+static struct zram *zram_devices;
 
 /* Module params (documentation at end) */
 static unsigned int num_devices = 1;
@@ -669,11 +669,6 @@ static void destroy_device(struct zram *zram)
 		blk_cleanup_queue(zram->queue);
 }
 
-unsigned int zram_get_num_devices(void)
-{
-	return num_devices;
-}
-
 static int __init zram_init(void)
 {
 	int ret, dev_id;
diff --git a/drivers/staging/zram/zram_drv.h b/drivers/staging/zram/zram_drv.h
index 2d1a3f1..a18b66d 100644
--- a/drivers/staging/zram/zram_drv.h
+++ b/drivers/staging/zram/zram_drv.h
@@ -109,8 +109,6 @@ struct zram {
 	struct zram_stats stats;
 };
 
-extern struct zram *zram_devices;
-unsigned int zram_get_num_devices(void);
 #ifdef CONFIG_SYSFS
 extern struct attribute_group zram_disk_attr_group;
 #endif
-- 
1.8.1.2

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