use-swap-in-memswap

   1 ext4: use swap() in memswap()
   2
   3 From: Fabian Frederick <fabf@skynet.be>
   4
   5 Use kernel.h macro definition.
   6
   7 Thanks to Julia Lawall for Coccinelle scripting support.
   8
   9 Signed-off-by: Fabian Frederick <fabf@skynet.be>
  10 Signed-off-by: Theodore Ts'o <tytso@mit.edu>
  11 ---
  12  fs/ext4/ioctl.c | 5 +----
  13  1 file changed, 1 insertion(+), 4 deletions(-)
  14
  15 diff --git a/fs/ext4/ioctl.c b/fs/ext4/ioctl.c
  16 index 7ce8582..cb84512 100644
  17 --- a/fs/ext4/ioctl.c
  18 +++ b/fs/ext4/ioctl.c
  19 @@ -31,14 +31,11 @@
  20  static void memswap(void *a, void *b, size_t len)
  21  {
  22         unsigned char *ap, *bp;
  23 -       unsigned char tmp;
  24
  25         ap = (unsigned char *)a;
  26         bp = (unsigned char *)b;
  27         while (len-- > 0) {
  28 -               tmp = *ap;
  29 -               *ap = *bp;
  30 -               *bp = tmp;
  31 +               swap(*ap, *bp);
  32                 ap++;
  33                 bp++;
  34         }
  35 --
  36 2.4.2
  37
  38