linux-kernel - [PATCH 3.16.y-ckt 118/118] md: fix a build warning

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Message-Id: <1439369820-27005-119-git-send-email-luis.henriques@canonical.com>
Date:	Wed, 12 Aug 2015 09:57:00 +0100
From:	Luis Henriques <luis.henriques@...onical.com>
To:	linux-kernel@...r.kernel.org, stable@...r.kernel.org,
	kernel-team@...ts.ubuntu.com
Cc:	Firo Yang <firogm@...il.com>, NeilBrown <neilb@...e.de>,
	Luis Henriques <luis.henriques@...onical.com>
Subject: [PATCH 3.16.y-ckt 118/118] md: fix a build warning

3.16.7-ckt16 -stable review patch.  If anyone has any objections, please let me know.

------------------

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

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: Luis Henriques <luis.henriques@...onical.com>
---
 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 f5b1af403b5c..8276c3b29ab4 100644
--- a/drivers/md/md.c
+++ b/drivers/md/md.c
@@ -6225,7 +6225,7 @@ 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)
--
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