https://github.com/torvalds/linux
Revision acc1f3ede977bf189b332874beeadf48c01544c5 authored by Julia Lawall on 04 March 2008, 22:29:20 UTC, committed by Linus Torvalds on 05 March 2008, 00:35:16 UTC
In commit e6bafba5b4765a5a252f1b8d31cbf6d2459da337 ("wmi: (!x & y)
strikes again"), a bug was fixed that involved converting !x & y to !(x
& y).  The code below shows the same pattern, and thus should perhaps be
fixed in the same way.

This is not tested and clearly changes the semantics, so it is only
something to consider.

The semantic patch that makes this change is as follows:
(http://www.emn.fr/x-info/coccinelle/)

// <smpl>
@@ expression E1,E2; @@
(
  !E1 & !E2
|
- !E1 & E2
+ !(E1 & E2)
)
// </smpl>

Signed-off-by: Julia Lawall <julia@diku.dk>
Cc: Chris Mason <chris.mason@oracle.com>
Cc: Jeff Mahoney <jeffm@suse.com>
Cc: Jan Kara <jack@ucw.cz>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
1 parent 022d917
History
Tip revision: acc1f3ede977bf189b332874beeadf48c01544c5 authored by Julia Lawall on 04 March 2008, 22:29:20 UTC
fs/reiserfs/super.c: correct use of ! and &
Tip revision: acc1f3e
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