diff options
| author | Joe Perches <joe@perches.com> | 2013-09-11 14:23:57 -0700 |
|---|---|---|
| committer | Linus Torvalds <torvalds@linux-foundation.org> | 2013-09-11 15:58:42 -0700 |
| commit | 7e51f1979237e01bcd4e04e434c5da79151f08f8 (patch) | |
| tree | 17cfd69cb04e0ed9e66d5f436199f9dc8bbe3fea /scripts/checkpatch.pl | |
| parent | d62a201f24cba74e2fbf9f6f7af86ff5f5e276fc (diff) | |
checkpatch: check for duplicate signatures
Emit a warning when a signature is used more than once.
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>
Diffstat (limited to 'scripts/checkpatch.pl')
| -rwxr-xr-x | scripts/checkpatch.pl | 12 |
1 files changed, 12 insertions, 0 deletions
diff --git a/scripts/checkpatch.pl b/scripts/checkpatch.pl index c00e5108c0d..7c79c91662c 100755 --- a/scripts/checkpatch.pl +++ b/scripts/checkpatch.pl @@ -1544,6 +1544,7 @@ sub process { my %suppress_export; my $suppress_statement = 0; + my %signatures = (); # Pre-scan the patch sanitizing the lines. # Pre-scan the patch looking for any __setup documentation. @@ -1793,6 +1794,17 @@ sub process { "email address '$email' might be better as '$suggested_email$comment'\n" . $herecurr); } } + +# Check for duplicate signatures + my $sig_nospace = $line; + $sig_nospace =~ s/\s//g; + $sig_nospace = lc($sig_nospace); + if (defined $signatures{$sig_nospace}) { + WARN("BAD_SIGN_OFF", + "Duplicate signature\n" . $herecurr); + } else { + $signatures{$sig_nospace} = 1; + } } # Check for wrappage within a valid hunk of the file |