* [PATCH v5] checkpatch: warn for non-standard fixes tag style
@ 2022-09-09 20:25 Niklas Söderlund
2022-09-10 2:52 ` Joe Perches
0 siblings, 1 reply; 2+ messages in thread
From: Niklas Söderlund @ 2022-09-09 20:25 UTC (permalink / raw)
To: Dwaipayan Ray, Lukas Bulwahn, Joe Perches, Jonathan Corbet,
Andy Whitcroft, linux-doc, linux-kernel, Philippe Schenker,
Stephen Rothwell
Cc: oss-drivers, Niklas Söderlund, Simon Horman, Louis Peens
Add a warning for fixes tags that does not fall in line with the
standards specified by the community.
Signed-off-by: Niklas Söderlund <niklas.soderlund@corigine.com>
Reviewed-by: Simon Horman <simon.horman@corigine.com>
Reviewed-by: Louis Peens <louis.peens@corigine.com>
---
* 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
fixes 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 | 8 +++++
scripts/checkpatch.pl | 41 ++++++++++++++++++++++++++
2 files changed, 49 insertions(+)
diff --git a/Documentation/dev-tools/checkpatch.rst b/Documentation/dev-tools/checkpatch.rst
index b52452bc2963..8c8456a3bd18 100644
--- a/Documentation/dev-tools/checkpatch.rst
+++ b/Documentation/dev-tools/checkpatch.rst
@@ -612,6 +612,14 @@ 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 fall in line with the standards
+ specified by the community. This can occur if the tag have been split into
+ multiple lines (e.g., when pasted in 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..61db5a46e254 100755
--- a/scripts/checkpatch.pl
+++ b/scripts/checkpatch.pl
@@ -3140,6 +3140,47 @@ sub process {
}
}
+# Check Fixes: styles is correct
+ if (!$in_header_lines && $line =~ /^\s*fixes:?/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) {
+ WARN("BAD_FIXES_TAG",
+ "Please use correct Fixes: style 'Fixes: <12 chars of sha1> (\"<title line>\")' - ie: 'Fixes: $cid (\"$ctitle\")'\n" . $herecurr);
+
+ }
+ }
+
# Check email subject for common tools that don't need to be mentioned
if ($in_header_lines &&
$line =~ /^Subject:.*\b(?:checkpatch|sparse|smatch)\b[^:]/i) {
--
2.37.3
^ permalink raw reply related [flat|nested] 2+ messages in thread
* Re: [PATCH v5] checkpatch: warn for non-standard fixes tag style
2022-09-09 20:25 [PATCH v5] checkpatch: warn for non-standard fixes tag style Niklas Söderlund
@ 2022-09-10 2:52 ` Joe Perches
0 siblings, 0 replies; 2+ messages in thread
From: Joe Perches @ 2022-09-10 2:52 UTC (permalink / raw)
To: Niklas Söderlund, Dwaipayan Ray, Lukas Bulwahn,
Jonathan Corbet, Andy Whitcroft, linux-doc, linux-kernel,
Philippe Schenker, Stephen Rothwell
Cc: oss-drivers, Simon Horman, Louis Peens
On Fri, 2022-09-09 at 22:25 +0200, Niklas Söderlund wrote:
> Add a warning for fixes tags that does not fall in line with the
> standards specified by the community.
[]
> diff --git a/scripts/checkpatch.pl b/scripts/checkpatch.pl
[]
> @@ -3140,6 +3140,47 @@ sub process {
[]
> + if ($ctitle ne $title || $tag_case || $tag_space ||
> + $id_length || $id_case || !$title_has_quotes) {
> + WARN("BAD_FIXES_TAG",
> + "Please use correct Fixes: style 'Fixes: <12 chars of sha1> (\"<title line>\")' - ie: 'Fixes: $cid (\"$ctitle\")'\n" . $herecurr);
BTW: Might as well add a --fix for Fixes:
if (WARN("...") &&
$fix) {
$fixed[$fixlinenr] = "Fixes: $cid (\"$ctitle\")";
}
^ permalink raw reply [flat|nested] 2+ messages in thread
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