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| author | Joe Perches <joe@perches.com> | 2016-01-20 23:59:18 +0100 |
|---|---|---|
| committer | Linus Torvalds <torvalds@linux-foundation.org> | 2016-01-21 02:09:18 +0100 |
| commit | 62e15a6daab0f6b3e8233e976201bce9faecaaf7 (patch) | |
| tree | ae17e3fed46d08b563e64fae02d83a555bce4e18 | |
| parent | checkpatch: warn when casting constants to c90 int or longer types (diff) | |
| download | linux-62e15a6daab0f6b3e8233e976201bce9faecaaf7.tar.xz linux-62e15a6daab0f6b3e8233e976201bce9faecaaf7.zip | |
checkpatch: improve macros with flow control test
The current test excludes any macro with ## concatenation from being
reported with hidden flow control.
Some macros are used with return or goto statements along with ##args or
##__VA_ARGS__. A somewhat common case is a logging macro like
pr_info(fmt, ...) then a return or goto statement.
Check the concatenated variable for args or __VA_ARGS__ and allow those
macros to also be reported when they contain a return or goto.
Signed-off-by: Joe Perches <joe@perches.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
| -rwxr-xr-x | scripts/checkpatch.pl | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/scripts/checkpatch.pl b/scripts/checkpatch.pl index 86457062db29..77b293d5ce4f 100755 --- a/scripts/checkpatch.pl +++ b/scripts/checkpatch.pl @@ -4539,7 +4539,7 @@ sub process { #print "LINE<$lines[$ln-1]> len<" . length($lines[$ln-1]) . "\n"; $has_flow_statement = 1 if ($ctx =~ /\b(goto|return)\b/); - $has_arg_concat = 1 if ($ctx =~ /\#\#/); + $has_arg_concat = 1 if ($ctx =~ /\#\#/ && $ctx !~ /\#\#\s*(?:__VA_ARGS__|args)\b/); $dstat =~ s/^.\s*\#\s*define\s+$Ident(?:\([^\)]*\))?\s*//; $dstat =~ s/$;//g; |