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authorJoe Perches <joe@perches.com>2013-09-11 14:23:57 -0700
committerLinus Torvalds <torvalds@linux-foundation.org>2013-09-11 15:58:42 -0700
commit7e51f1979237e01bcd4e04e434c5da79151f08f8 (patch)
tree17cfd69cb04e0ed9e66d5f436199f9dc8bbe3fea
parentd62a201f24cba74e2fbf9f6f7af86ff5f5e276fc (diff)
downloadlinux-7e51f1979237e01bcd4e04e434c5da79151f08f8.tar.bz2
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>
-rwxr-xr-xscripts/checkpatch.pl12
1 files changed, 12 insertions, 0 deletions
diff --git a/scripts/checkpatch.pl b/scripts/checkpatch.pl
index c00e5108c0d2..7c79c91662c8 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