From: Fabian Frederick <fabf@skynet.be>
Date: Sat, 13 Jun 2015 03:46:33 +0000 (-0400)
Subject: ext4: use swap() in memswap()
X-Git-Tag: firefly_0821_release~176^2~1456^2~23
X-Git-Url: http://demsky.eecs.uci.edu/git/?a=commitdiff_plain;h=4b7e2db5c08ca3d9f3b75b2a46f53c358ea55540;p=firefly-linux-kernel-4.4.55.git

ext4: use swap() in memswap()

Use kernel.h macro definition.

Thanks to Julia Lawall for Coccinelle scripting support.

Signed-off-by: Fabian Frederick <fabf@skynet.be>
Signed-off-by: Theodore Ts'o <tytso@mit.edu>
---

diff --git a/fs/ext4/ioctl.c b/fs/ext4/ioctl.c
index 7ce85824211b..cb8451246b30 100644
--- a/fs/ext4/ioctl.c
+++ b/fs/ext4/ioctl.c
@@ -31,14 +31,11 @@
 static void memswap(void *a, void *b, size_t len)
 {
 	unsigned char *ap, *bp;
-	unsigned char tmp;
 
 	ap = (unsigned char *)a;
 	bp = (unsigned char *)b;
 	while (len-- > 0) {
-		tmp = *ap;
-		*ap = *bp;
-		*bp = tmp;
+		swap(*ap, *bp);
 		ap++;
 		bp++;
 	}