[PATCH] checkpatch: Reduce git commit description style false positives

[Joe Perches]

Some lines in a commit log appear to be commit SHA1 ids like:

ERROR: Please use git commit description style 'commit <12+ chars of sha1> 
("<title line>")' - ie: 'commit 0123456789ab ("commit description")'
Link: 
http://lkml.kernel.org/r/40e03fd7aaf1f55c75d787128d6d17c5a71226c2.1464358556.git.vdavy...@virtuozzo.com

Reduce the false positives.

Reported-by: Andrew Morton <a...@linux-foundation.org>
Signed-off-by: Joe Perches <j...@perches.com>
---
 scripts/checkpatch.pl | 1 +
 1 file changed, 1 insertion(+)

diff --git a/scripts/checkpatch.pl b/scripts/checkpatch.pl
index 6750595..4904ced 100755
--- a/scripts/checkpatch.pl
+++ b/scripts/checkpatch.pl
@@ -2454,6 +2454,7 @@ sub process {
 
 # Check for git id commit length and improperly formed commit descriptions
                if ($in_commit_log && !$commit_log_possible_stack_dump &&
+                   $line !~ /^\s*(?:Link|Patchwork|http|BugLink):/i &&
                    ($line =~ /\bcommit\s+[0-9a-f]{5,}\b/i ||
                     ($line =~ /\b[0-9a-f]{12,40}\b/i &&
                      $line !~ /[\<\[][0-9a-f]{12,40}[\>\]]/i &&
-- 
2.8.0.rc4.16.g56331f8