diff options
| author | Fabian Frederick <fabf@skynet.be> | 2015-04-14 15:42:34 -0700 |
|---|---|---|
| committer | Linus Torvalds <torvalds@linux-foundation.org> | 2015-04-14 16:48:56 -0700 |
| commit | 5017335d6d8c1fc3bbc04f80785440885f305879 (patch) | |
| tree | bbf0b68bd35ca89f54c42dd50efc41d893f4ef5f /scripts | |
| parent | 97534127012f0e396eddea4691f4c9b170aed74b (diff) | |
| download | lwn-5017335d6d8c1fc3bbc04f80785440885f305879.tar.gz lwn-5017335d6d8c1fc3bbc04f80785440885f305879.zip | |
scripts/coccinelle/misc/bugon.cocci: update bug_on conversion warning
if()/BUG conversion to BUG_ON must be avoided when there's side effect
in condition. The reason being BUG_ON won't execute the condition when
CONFIG_BUG is not defined.
With inspiration from Bruce Fields.
Signed-off-by: Fabian Frederick <fabf@skynet.be>
Suggested-by: Julia Lawall <Julia.Lawall@lip6.fr>
Acked-by: Julia Lawall <Julia.Lawall@lip6.fr>
Cc: J. Bruce Fields <bfields@fieldses.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Diffstat (limited to 'scripts')
| -rw-r--r-- | scripts/coccinelle/misc/bugon.cocci | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/scripts/coccinelle/misc/bugon.cocci b/scripts/coccinelle/misc/bugon.cocci index 3b7eec24fb5a..27c97f1f2767 100644 --- a/scripts/coccinelle/misc/bugon.cocci +++ b/scripts/coccinelle/misc/bugon.cocci @@ -57,6 +57,6 @@ coccilib.org.print_todo(p[0], "WARNING use BUG_ON") p << r.p; @@ -msg="WARNING: Use BUG_ON" +msg="WARNING: Use BUG_ON instead of if condition followed by BUG.\nPlease make sure the condition has no side effects (see conditional BUG_ON definition in include/asm-generic/bug.h)" coccilib.report.print_report(p[0], msg) |