diff options
| -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 |