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checkpatch: remove false warning for commit reference 

Checkpatch warns of an incorrect commit reference style for any
hexadecimal number of 12 digits and more.

Numbers of 12 digits are not necessarily commit ids.

For an example provoking the problem see
  https://patchwork.kernel.org/patch/9170897/

Checkpatch should only warn if the number refers to an existing commit.

Link: http://lkml.kernel.org/r/20170607184008.5869-1-xypron.glpk@gmx.de
Signed-off-by: Heinrich Schuchardt <xypron.glpk@gmx.de>
Acked-by: Joe Perches <joe@perches.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
hifive-unleashed-5.1
Heinrich Schuchardt 2017-07-10 15:52:16 -07:00 committed by Linus Torvalds
parent ca8198640f
commit 948b133a1b
1 changed files with 3 additions and 1 deletions
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4
scripts/checkpatch.pl
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@ -867,6 +867,7 @@ sub git_commit_info {
# echo "commit $(cut -c 1-12,41-)"
# done
} elsif ($lines[0] =~ /^fatal: ambiguous argument '$commit': unknown revision or path not in the working tree\./) {
$id = undef;
} else {
$id = substr($lines[0], 0, 12);
$desc = substr($lines[0], 41);
@ -2606,7 +2607,8 @@ sub process {
($id, $description) = git_commit_info($orig_commit,
$id, $orig_desc);
if ($short || $long || $space || $case || ($orig_desc ne $description) || !$hasparens) {
if (defined($id) &&
($short || $long || $space || $case || ($orig_desc ne $description) || !$hasparens)) {
ERROR("GIT_COMMIT_ID",
"Please use git commit description style 'commit <12+ chars of sha1> (\"<title line>\")' - ie: '${init_char}ommit $id (\"$description\")'\n" . $herecurr);
}