On Sat, Oct 31, 2020 at 9:44 AM Joe Perches <j...@perches.com> wrote: > > On Fri, 2020-10-30 at 12:58 +0100, Lukas Bulwahn wrote: > > > > On Fri, 30 Oct 2020, Joe Perches wrote: > > > > > On Fri, 2020-10-30 at 14:37 +0530, Dwaipayan Ray wrote: > > > > checkpatch has limited support for parsing email comments. It only > > > > support single name comments or single after address comments. > > > > Whereas, RFC 5322 specifies that comments can be inserted in > > > > between any tokens of the email fields. > > > > > > > > Improve comment parsing mechanism in checkpatch. > > > > > > > > What is handled now: > > > > > > > > - Multiple name/address comments > > > > - Comments anywhere in between name/address > > > > - Nested comments like (John (Doe)) > > > > > > > > A brief analysis of checkpatch output on v5.0..v5.7 showed that > > > > after these modifications, the number of BAD_SIGN_OFF warnings > > > > came down from 2944 to 1424, and FROM_SIGN_OFF_MISMATCH came > > > > down from 2366 to 2330. > > > > > > > > So, a total of 1556 false positives were resolved in total. > > > > > > A mere reduction in messages emitted isn't necessarily good. > > > > > > > Agree. That is why I also went through the list of those warnings. > > > > I could not spot any obvious true positive among the reduced ones. > > > > > > > Please send me privately a complete list of these nominally > > > false positive messages that are no longer emitted. > > > > > > I believe one of the relatively common incorrect messages is > > > for the cc: <sta...@vger.kernel.org> where a version number is > > > continued on the same line after a #. > > > > > > CC: sta...@vger.kernel.org # for versions x.y.z and above > > > > > > > That was one, > > It's not just one, it's ~90% of the list that Dwaipayan sent me. > > $ wc -l mismatches > 831 mismatches > > $ grep -v -i stable mismatches | wc -l > 98 > > > another common pattern was just quotes put inconsistently at > > different places. > > Yes, there are some defects there. > But there are also now false negatives. > > For instance, this is not appropriate to ignore: > > WARNING:BAD_SIGN_OFF: email address 'jacek.anaszew...@gmail.com, > linux-l...@vger.kernel.org, linux-kernel@vger.kernel.org, dmur...@ti.com' > might be better as 'jacek.anaszew...@gmail.com,linux-l...@vger.kernel.org, > linux-kernel@vger.kernel.org, dmur...@ti.com' > > From the file that Dwaipayan sent me, all the rest not including the > stable variants, which IMO should be handled separately, are below. > > Of these 98 in total, 60+% are unicode which IMO should always be quoted > and most are doubled with BAD_SIGN_OFF doubling FROM_SIGN_OFF_MISMATCH > (and I don't quite understand why it's "From:/" then "Signed-off-by:" > > $ grep -v -i stable dwai | sort | uniq -c | sort -rn > 31 WARNING:BAD_SIGN_OFF: email address '周琰杰 (Zhou Yanjie) > <zhouyan...@wanyeetech.com>' might be better as '"周琰杰"(Zhou Yanjie) > <zhouyan...@wanyeetech.com>' > 30 WARNING:FROM_SIGN_OFF_MISMATCH: From:/Signed-off-by: email name > mismatch: 'From: "周琰杰"(Zhou Yanjie) <zhouyan...@wanyeetech.com>' != > 'Signed-off-by: 周琰杰 (Zhou Yanjie) <zhouyan...@wanyeetech.com>' > > These 29 in total would be better stripping any bits in parentheses from > the name portion only when _not_ inside quotes. > > 20 WARNING:BAD_SIGN_OFF: email address 'Thomas Hellström (VMware) > <thomas...@shipmail.org>' might be better as '"Thomas Hellström"(VMware) > <thomas...@shipmail.org>' > 5 WARNING:BAD_SIGN_OFF: email address 'H. Peter Anvin (Intel) > <h...@zytor.com>' might be better as '"H. Peter Anvin"(Intel) > <h...@zytor.com>' > > > 1 WARNING:FROM_SIGN_OFF_MISMATCH: From:/Signed-off-by: email name > mismatch: 'From: "Thomas Hellström"(VMware) <thomas...@shipmail.org>' != > 'Signed-off-by: Thomas Hellström (VMware) <thomas...@shipmail.org>' > > 1 WARNING:FROM_SIGN_OFF_MISMATCH: From:/Signed-off-by: email name > mismatch: 'From: "Srivatsa S. Bhat"(VMware) <sriva...@csail.mit.edu>' != > 'Signed-off-by: Srivatsa S. Bhat (VMware) <sriva...@csail.mit.edu>' > 1 WARNING:FROM_SIGN_OFF_MISMATCH: From:/Signed-off-by: email name > mismatch: 'From: JanNieuwenhuizen(janneke) <jann...@gnu.org>' != > 'Signed-off-by: Jan Nieuwenhuizen <jann...@gnu.org>' > 1 WARNING:FROM_SIGN_OFF_MISMATCH: From:/Signed-off-by: email name > mismatch: 'From: "Frédéric Pierret"(fepitre) <frederic.pier...@qubes-os.org>' > != 'Signed-off-by: Frédéric Pierret (fepitre) <frederic.pier...@qubes-os.org>' > > So these 8 others are ones where quotes are either oddly placed > or perhaps should always exist and the comment in parentheses > is suggested poorly. 7 of these should be fixed and one should > still be reported. > > 1 WARNING:BAD_SIGN_OFF: email address '"Thomas Hellström (VMware)" > <thomas...@shipmail.org>' might be better as '"Thomas Hellström"(VMware) > <thomas...@shipmail.org>' > 1 WARNING:BAD_SIGN_OFF: email address 'Srivatsa S. Bhat (VMware) > <sriva...@csail.mit.edu>' might be better as '"Srivatsa S. Bhat"(VMware) > <sriva...@csail.mit.edu>' > 1 WARNING:BAD_SIGN_OFF: email address '"Rantala, Tommi T. (Nokia - > FI/Espoo)" <tommi.t.rant...@nokia.com>' might be better as '"Rantala, Tommi > T."(Nokia - FI/Espoo) <tommi.t.rant...@nokia.com>' > 1 WARNING:BAD_SIGN_OFF: email address '"Kai Mäkisara (Kolumbus)" > <kai.makis...@kolumbus.fi>' might be better as '"Kai Mäkisara"(Kolumbus) > <kai.makis...@kolumbus.fi>' > 1 WARNING:BAD_SIGN_OFF: email address 'jacek.anaszew...@gmail.com, > linux-l...@vger.kernel.org, linux-kernel@vger.kernel.org, dmur...@ti.com' > might be better as 'jacek.anaszew...@gmail.com,linux-l...@vger.kernel.org, > linux-kernel@vger.kernel.org, dmur...@ti.com' > 1 WARNING:BAD_SIGN_OFF: email address 'Frédéric Pierret (fepitre) > <frederic.pier...@qubes-os.org>' might be better as '"Frédéric > Pierret"(fepitre) <frederic.pier...@qubes-os.org>' > 1 WARNING:BAD_SIGN_OFF: email address 'david.lai...@aculab.com (big > endian system concerns)' might be better as 'david.lai...@aculab.com(big > endian system concerns)' > 1 WARNING:BAD_SIGN_OFF: email address 'apenw...@foxnet.net (Avery > Pennarun)' might be better as 'apenw...@foxnet.net(Avery Pennarun)' > > Hi, Thanks for the review.
So I get that the parentheses from within quotes should not be extracted. I will do that. But for the names which should be quoted, I think the errors appeared because of a parsing bug. There is no separate mechanism to distinguish quoted and unquoted names currently. Names which have must quote characters without any comments are not warned about right now: D. Ray <dwaipayanr...@gmail.com> doesn't throw any warning, while D. Ray (Dwai) <dwaipayanr...@gmail.com> does. Do you think this should be dealt separately from this patch? Perhaps as another warning? Thanks, Dwaipayan.
