--- /dev/null
+From 4e023612325a9034a542bfab79f78b1fe5ebb841 Mon Sep 17 00:00:00 2001
+From: Firo Yang <firogm@gmail.com>
+Date: Thu, 11 Jun 2015 09:41:10 +0800
+Subject: md: fix a build warning
+
+From: Firo Yang <firogm@gmail.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@gmail.com>
+Signed-off-by: NeilBrown <neilb@suse.de>
+Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
+
+---
+ drivers/md/md.c | 2 +-
+ 1 file changed, 1 insertion(+), 1 deletion(-)
+
+--- a/drivers/md/md.c
++++ b/drivers/md/md.c
+@@ -6221,7 +6221,7 @@ static int update_array_info(struct mdde
+ 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)