The patch titled Subject: checkpatch: check signoff when reading stdin has been added to the -mm tree. Its filename is checkpatch-check-signoff-when-reading-stdin.patch This patch should soon appear at http://ozlabs.org/~akpm/mmots/broken-out/checkpatch-check-signoff-when-reading-stdin.patch and later at http://ozlabs.org/~akpm/mmotm/broken-out/checkpatch-check-signoff-when-reading-stdin.patch Before you just go and hit "reply", please: a) Consider who else should be cc'ed b) Prefer to cc a suitable mailing list as well c) Ideally: find the original patch on the mailing list and do a reply-to-all to that, adding suitable additional cc's *** Remember to use Documentation/SubmitChecklist when testing your code *** The -mm tree is included into linux-next and is updated there every 3-4 working days ------------------------------------------------------ From: Allen Hubbe <allenbh@xxxxxxxxx> Subject: checkpatch: check signoff when reading stdin Signoff was not checked if the filename is '-', indicating reading the patch from stdin. Commands such as the below would not warn about a missing signoff, because the patch filename is '-'. This change allows checkpatch to warn about a missing signoff, even if the input filename is '-', but only if the patch has a commit message. git show --pretty=email | scripts/checkpatch.pl - A more common use of checkpatch with stdin is for piping git diff through checkpatch. The diff output would not contain a commit message, and therefore it would not contain a signoff line. For this common use case, a warning should not be printed about the missing signoff. With this change we will only warn about a missing signoff if the input contains a commit message. git diff | scripts/checkpatch.pl - Before this patch, a workaround for the first command was to refer to stdin by a name other than '-'. The workaround is not an elegant solution, because elsewhere checkpatch uses the fact that filename equals '-', such as in setting '$vname' to 'Your patch' for stdin. The command below would report "/dev/stdin has style problems" instead of "Your patch has style problems." git show --pretty=email | scripts/checkpatch.pl /dev/stdin Link: http://lkml.kernel.org/r/48be31e414bddc65bccfa6b1322359be9ba032eb.1469670589.git.allenbh@xxxxxxxxx Signed-off-by: Allen Hubbe <allenbh@xxxxxxxxx> Cc: Andy Whitcroft <apw@xxxxxxxxxxxxx> Cc: Joe Perches <joe@xxxxxxxxxxx> Signed-off-by: Andrew Morton <akpm@xxxxxxxxxxxxxxxxxxxx> --- scripts/checkpatch.pl | 4 +++- 1 file changed, 3 insertions(+), 1 deletion(-) diff -puN scripts/checkpatch.pl~checkpatch-check-signoff-when-reading-stdin scripts/checkpatch.pl --- a/scripts/checkpatch.pl~checkpatch-check-signoff-when-reading-stdin +++ a/scripts/checkpatch.pl @@ -2069,6 +2069,7 @@ sub process { my $is_patch = 0; my $in_header_lines = $file ? 0 : 1; my $in_commit_log = 0; #Scanning lines before patch + my $has_commit_log = 0; #Encountered lines before patch my $commit_log_possible_stack_dump = 0; my $commit_log_long_line = 0; my $commit_log_has_diff = 0; @@ -2566,6 +2567,7 @@ sub process { $rawline =~ /^(commit\b|from\b|[\w-]+:).*$/i)) { $in_header_lines = 0; $in_commit_log = 1; + $has_commit_log = 1; } # Check if there is UTF-8 in a commit log when a mail header has explicitly @@ -6055,7 +6057,7 @@ sub process { ERROR("NOT_UNIFIED_DIFF", "Does not appear to be a unified-diff format patch\n"); } - if ($is_patch && $filename ne '-' && $chk_signoff && $signoff == 0) { + if ($is_patch && $has_commit_log && $chk_signoff && $signoff == 0) { ERROR("MISSING_SIGN_OFF", "Missing Signed-off-by: line(s)\n"); } _ Patches currently in -mm which might be from allenbh@xxxxxxxxx are checkpatch-check-signoff-when-reading-stdin.patch -- To unsubscribe from this list: send the line "unsubscribe mm-commits" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html