Commit log lines starting with a '#' can be dropped by git if the corresponding commit message is reworded by a maintainer. This minor error can be easily avoided if checkpatch warns for the same.
Add a new check which emits a warning on finding lines starting with a '#'. Also add a quick fix by adding a tab in front of such lines. Suggested-by: Peilin Ye <yepeilin...@gmail.com> Tested-by: Peilin Ye <yepeilin...@gmail.com> Signed-off-by: Dwaipayan Ray <dwaipayanr...@gmail.com> --- Changes in v2: - Modify warning message and type - Style fixes scripts/checkpatch.pl | 9 +++++++++ 1 file changed, 9 insertions(+) diff --git a/scripts/checkpatch.pl b/scripts/checkpatch.pl index e8c1ed0b1fad..eb8b13cf3f40 100755 --- a/scripts/checkpatch.pl +++ b/scripts/checkpatch.pl @@ -2966,6 +2966,15 @@ sub process { $commit_log_possible_stack_dump = 0; } +# Check for lines starting with a # + if ($in_commit_log && $line =~ /^#/) { + if (WARN("COMMIT_COMMENT_SYMBOL", + "Commit log lines starting with a '#' will be dropped by git as a comment\n" . $herecurr) && + $fix) { + $fixed[$fixlinenr] =~ s/^#/\t#/; + } + } + # 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|https|BugLink|base-commit):/i && -- 2.27.0