linux-kernel - [PATCH 3.12 093/123] md: fix a build warning

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Message-Id: <4bf55b9e98ae6efcba89f234cab7deeafc377857.1438699154.git.jslaby@suse.cz>
Date:	Tue,  4 Aug 2015 16:40:37 +0200
From:	Jiri Slaby <jslaby@...e.cz>
To:	stable@...r.kernel.org
Cc:	linux-kernel@...r.kernel.org, Firo Yang <firogm@...il.com>,
	NeilBrown <neilb@...e.de>, Jiri Slaby <jslaby@...e.cz>
Subject: [PATCH 3.12 093/123] md: fix a build warning

From: Firo Yang <firogm@...il.com>

3.12-stable review patch.  If anyone has any objections, please let me know.

===============

commit 4e023612325a9034a542bfab79f78b1fe5ebb841 upstream.

Warning like this:

drivers/md/md.c: In function "update_array_info":
drivers/md/md.c:6394:26: warning: logical not is only applied
to the left hand side of comparison [-Wlogical-not-parentheses]
      !mddev->persistent  != info->not_persistent||

Fix it as Neil Brown said:
mddev->persistent != !info->not_persistent ||

Signed-off-by: Firo Yang <firogm@...il.com>
Signed-off-by: NeilBrown <neilb@...e.de>
Signed-off-by: Jiri Slaby <jslaby@...e.cz>
---
 drivers/md/md.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/md/md.c b/drivers/md/md.c
index bf030d4b09a7..2394b5bbeab9 100644
--- a/drivers/md/md.c
+++ b/drivers/md/md.c
@@ -6233,7 +6233,7 @@ static int update_array_info(struct mddev *mddev, mdu_array_info_t *info)
 	    mddev->ctime         != info->ctime         ||
 	    mddev->level         != info->level         ||
 /*	    mddev->layout        != info->layout        || */
-	    !mddev->persistent	 != info->not_persistent||
+	    mddev->persistent	 != !info->not_persistent ||
 	    mddev->chunk_sectors != info->chunk_size >> 9 ||
 	    /* ignore bottom 8 bits of state, and allow SB_BITMAP_PRESENT to change */
 	    ((state^info->state) & 0xfffffe00)
-- 
2.5.0

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