On Thu, 2019-03-21 at 12:23 -0700, Sean Christopherson wrote: > On Thu, Mar 21, 2019 at 11:43:16AM -0700, Sean Christopherson wrote: > > The documentation for Co-developed-by is a bit light on details, e.g. it > > doesn't explicitly state that: > > > > - Multiple Co-developed-by tags are perfectly acceptable > > - Co-developed-by and Signed-off-by must be paired together > > - SOB ordering should still follow standard sign-off procedure While I still think co-developed-by: is unnecessary and almost none of the existing uses of this have this sequence of "Co-developed-by: <name/email>" followed directly by "Signed-off-by: <same name/email>", here's a possible checkpatch addition for it. --- scripts/checkpatch.pl | 9 +++++++++ 1 file changed, 9 insertions(+) diff --git a/scripts/checkpatch.pl b/scripts/checkpatch.pl index d0001fd1112d..e938fd56cc20 100755 --- a/scripts/checkpatch.pl +++ b/scripts/checkpatch.pl @@ -2687,6 +2687,15 @@ sub process { } else { $signatures{$sig_nospace} = 1; } + +# Check Co-developed-by: suceeded by Signed-off-by: with same name and email + if ($sign_off =~ /^signed-off-by:$/i && + $linenr > 1 && + $rawlines[$linenr - 2] =~ /^\s*co-developed-by:\s*(.*)/i && + $1 ne $email) { + WARN("BAD_SIGN_OFF", + "Co-developed-by: should be suceeded by Signed-off-by: with same name/email\n" . "$here\n" . $rawlines[$linenr - 2] . "\n" . $rawline); + } } # Check email subject for common tools that don't need to be mentioned