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Wed, 21 Sep 2022 09:57:29 -0700 (PDT) Received: from omf14.hostedemail.com (a10.router.float.18 [10.200.18.1]) by unirelay04.hostedemail.com (Postfix) with ESMTP id A3B5F1A0137; Wed, 21 Sep 2022 16:57:27 +0000 (UTC) Received: from [HIDDEN] (Authenticated sender: joe@perches.com) by omf14.hostedemail.com (Postfix) with ESMTPA id 2BD0442; Wed, 21 Sep 2022 16:57:21 +0000 (UTC) Message-ID: <9735b34d490b9774d883b8caf37ccb2e842cccfb.camel@perches.com> Subject: Re: [PATCH v7] checkpatch: warn for non-standard fixes tag style From: Joe Perches To: Niklas =?ISO-8859-1?Q?S=F6derlund?= , Dwaipayan Ray , Lukas Bulwahn , Jonathan Corbet , Andy Whitcroft , linux-doc@vger.kernel.org, linux-kernel@vger.kernel.org, Philippe Schenker , Stephen Rothwell , Andrew Morton Cc: oss-drivers@corigine.com, Simon Horman , Louis Peens Date: Wed, 21 Sep 2022 09:57:23 -0700 In-Reply-To: <20220914100255.1048460-1-niklas.soderlund@corigine.com> References: <20220914100255.1048460-1-niklas.soderlund@corigine.com> Content-Type: text/plain; charset="ISO-8859-1" Content-Transfer-Encoding: 8BIT User-Agent: Evolution 3.44.4 (3.44.4-1.fc36) MIME-Version: 1.0 X-Rspamd-Server: rspamout03 X-Rspamd-Queue-Id: 2BD0442 X-Spam-Status: No, score=-0.9 required=5.0 tests=BAYES_00,FORGED_SPF_HELO, RCVD_IN_DNSWL_NONE,RCVD_IN_MSPIKE_H3,RCVD_IN_MSPIKE_WL,SPF_HELO_PASS, SPF_NONE,UNPARSEABLE_RELAY autolearn=no autolearn_force=no version=3.4.6 X-Stat-Signature: 5auhrq3z3n7q7kp4ym5irfo6dfcgippf X-Session-Marker: 6A6F6540706572636865732E636F6D X-Session-ID: U2FsdGVkX1/a4BkMAYN1IzZGlaMLaXwLXHNoKlMAuiE= X-HE-Tag: 1663779441-445637 X-Spam-Checker-Version: SpamAssassin 3.4.6 (2021-04-09) on lindbergh.monkeyblade.net Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On Wed, 2022-09-14 at 12:02 +0200, Niklas S?derlund wrote: > Add a warning for fixes tags that does not follow community conventions. > > Signed-off-by: Niklas S?derlund > Reviewed-by: Simon Horman > Reviewed-by: Louis Peens > Reviewed-by: Philippe Schenker > Acked-by: Dwaipayan Ray > Reviewed-by: Lukas Bulwahn > Acked-by: Lukas Bulwahn Acked-by: Joe Perches > --- > * Changes since v6 > - Update first check to make sure that there is a likely SHA1 of some > minimum length after the fixes line. > - s/fall in line with community standard/follow community conventions/. > - Improve grammar, thanks Lukas. > > * Changes since v5 > - Add support for --fix option for checkpatch.pl. > > * Changes since v4 > - Extend test to cover lines with whitespace before the fixes: tag, e.g. > match check on /^\s*fixes:?/i. > > * Changes since v3 > - Add test that title in tag match title of commit referenced by sha1. > > * Changes since v2 > - Change the pattern to match on 'fixes:?' to catch more malformed > tags. > > * Changes since v1 > - Update the documentation wording and add mention one cause of the > message can be that email program splits the tag over multiple lines. > --- > Documentation/dev-tools/checkpatch.rst | 7 ++++ > scripts/checkpatch.pl | 44 ++++++++++++++++++++++++++ > 2 files changed, 51 insertions(+) > > diff --git a/Documentation/dev-tools/checkpatch.rst b/Documentation/dev-tools/checkpatch.rst > index b52452bc2963..c3389c6f3838 100644 > --- a/Documentation/dev-tools/checkpatch.rst > +++ b/Documentation/dev-tools/checkpatch.rst > @@ -612,6 +612,13 @@ Commit message > > See: https://www.kernel.org/doc/html/latest/process/submitting-patches.html#describe-your-changes > > + **BAD_FIXES_TAG** > + The Fixes: tag is malformed or does not follow the community conventions. > + This can occur if the tag have been split into multiple lines (e.g., when > + pasted in an email program with word wrapping enabled). > + > + See: https://www.kernel.org/doc/html/latest/process/submitting-patches.html#describe-your-changes > + > > Comparison style > ---------------- > diff --git a/scripts/checkpatch.pl b/scripts/checkpatch.pl > index 79e759aac543..ddc5c9d730c3 100755 > --- a/scripts/checkpatch.pl > +++ b/scripts/checkpatch.pl > @@ -3140,6 +3140,50 @@ sub process { > } > } > > +# Check Fixes: styles is correct > + if (!$in_header_lines && > + $line =~ /^\s*fixes:?\s*(?:commit\s*)?[0-9a-f]{5,}\b/i) { > + my $orig_commit = ""; > + my $id = "0123456789ab"; > + my $title = "commit title"; > + my $tag_case = 1; > + my $tag_space = 1; > + my $id_length = 1; > + my $id_case = 1; > + my $title_has_quotes = 0; > + > + if ($line =~ /(\s*fixes:?)\s+([0-9a-f]{5,})\s+($balanced_parens)/i) { > + my $tag = $1; > + $orig_commit = $2; > + $title = $3; > + > + $tag_case = 0 if $tag eq "Fixes:"; > + $tag_space = 0 if ($line =~ /^fixes:? [0-9a-f]{5,} ($balanced_parens)/i); > + > + $id_length = 0 if ($orig_commit =~ /^[0-9a-f]{12}$/i); > + $id_case = 0 if ($orig_commit !~ /[A-F]/); > + > + # Always strip leading/trailing parens then double quotes if existing > + $title = substr($title, 1, -1); > + if ($title =~ /^".*"$/) { > + $title = substr($title, 1, -1); > + $title_has_quotes = 1; > + } > + } > + > + my ($cid, $ctitle) = git_commit_info($orig_commit, $id, > + $title); > + > + if ($ctitle ne $title || $tag_case || $tag_space || > + $id_length || $id_case || !$title_has_quotes) { > + if (WARN("BAD_FIXES_TAG", > + "Please use correct Fixes: style 'Fixes: <12 chars of sha1> (\"\")' - ie: 'Fixes: $cid (\"$ctitle\")'\n" . $herecurr) && > + $fix) { > + $fixed[$fixlinenr] = "Fixes: $cid (\"$ctitle\")"; > + } > + } > + } > + > # Check email subject for common tools that don't need to be mentioned > if ($in_header_lines && > $line =~ /^Subject:.*\b(?:checkpatch|sparse|smatch)\b[^:]/i) {