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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>
This commit is contained in:
Fabian Frederick 2015-04-14 15:42:34 -07:00 committed by Linus Torvalds
parent 9753412701
commit 5017335d6d
1 changed files with 1 additions and 1 deletions
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scripts/coccinelle/misc/bugon.cocci
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@ -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)