linux-kernel - [PATCH] Fix reversed logic in drivers/md/md.c

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Date:	Mon, 25 May 2015 22:36:24 -0600
From:	Eddie Kovsky <ewk@...ovsky.org>
To:	neilb@...e.de
Cc:	linux-raid@...r.kernel.org, linux-kernel@...r.kernel.org
Subject: [PATCH] Fix reversed logic in drivers/md/md.c

Fixes the following compiler warning in next-20150525 using gcc 5.1.0:

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||

Signed-off-by: Eddie Kovsky <ewk@...ovsky.org>
---
 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 eb27b2a74492..b0f98b5b8985 100644
--- a/drivers/md/md.c
+++ b/drivers/md/md.c
@@ -6391,7 +6391,7 @@ 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)
-- 
2.4.1

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