On 12/17/2018 02:26 PM, Geert Uytterhoeven wrote: > Hi Marek, > > On Sun, Dec 16, 2018 at 9:50 PM Marek Vasut <marek.vasut@xxxxxxxxx> wrote: >> On 12/16/2018 09:08 PM, Geert Uytterhoeven wrote: >> [...] >> >>>>>>> Git actually does that automatically, assumed your user.email config matches >>>>>>> the From: address that is used in your outgoing email delivery path (i.e. the >>>>>>> scrubbed one, when using Gmail's SMTP server). >>>>>>> If you lie to git in your user.email config, git cannot do the right >>>>>>> thing, obviously. >>>>>> >>>>>> My git user.email obviously matches the From: field , before the >>>>>> scrubbing, which I believe is the correct thing to do. >>>>> >>>>> I disagree, because that is not how the emails are actually going out from the >>>>> SMTP server you are using. >>>> >>>> Can you summarize, clearly, what you believe is the right thing to >>>> configure and where ? >>> >>> According to git-send-email(1), you can either pass your scrubbed email >>> address to --from, or configure it in the sendemail.from config option. >>> Does that work for you? >> >> So sendemail.from != user.email , the later has the +tag while the >> former does not ? > > Right. > >>>>>>>> from the same person/email address as the email address in From, so they >>>>>>>> are equal. >>>>>>> >>>>>>> If they differ, they are not equal ;-) >>>>>> >>>>>> Depends on how you define 'equal' . Here I think foo+bar@xxxxxxxxxxx >>>>>> should be considered equal to foo@xxxxxxxxxxx . >>>>> >>>>> That is domain-specific knowledge, which you cannot rely upon. >>> >>>>>> Aha, so maybe that enhancement needs further enhancement to scrub the >>>>>> +tags before the check ? >>>>> >>>>> Again, that is domain-specific knowledge, which you cannot rely upon. >>>> >>>> How so, please elaborate . >>> >>> In general, you cannot assume the "+foo" part can be ignored. Only the sender >>> knows. >> >> How so ? > > It depends on the domain. > > Is Bill.Gates@xxxxxxxxxxxxx the same email address as > Bill.Gates+foo@xxxxxxxxxxxxx? > Is Bill.Gates+1955@xxxxxxxxxxxxx the same? > Is Bill.Gates-1955@xxxxxxxxxxxxx the same? > > I don't know. Only microsoft.com knows. > So that's why you should compare email addresses verbatim (but case > insensitive). Oh, you mean email-domain. In that case, since gmail treats foo@xxxxxxxxx the same as foo+bar@xxxxxxxxx , checkpatch should treat them equally as well. In which case, your checkpatch patch which now generates a warning on this is wrong ? -- Best regards, Marek Vasut