linux-kernel - Re: get_maintainer, b4, and CC: stable

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Message-ID: <20230810160152.GA2247938@mit.edu>
Date:   Thu, 10 Aug 2023 12:01:52 -0400
From:   "Theodore Ts'o" <tytso@....edu>
To:     Mark Brown <broonie@...nel.org>
Cc:     Nick Desaulniers <ndesaulniers@...gle.com>,
        Joe Perches <joe@...ches.com>,
        Konstantin Ryabitsev <konstantin@...uxfoundation.org>,
        "Kernel.org Tools" <tools@...ux.kernel.org>,
        "# 3.4.x" <stable@...r.kernel.org>,
        LKML <linux-kernel@...r.kernel.org>
Subject: Re: get_maintainer, b4, and CC: stable

On Wed, Aug 09, 2023 at 06:21:51PM +0100, Mark Brown wrote:
> On Wed, Aug 09, 2023 at 09:50:00AM -0700, Nick Desaulniers wrote:
> 
> > I suspect that either b4 or get_maintainer could see the Fixes tag and
> > then suggest to Cc stable for me.
> 
> > Should get_maintainer.pl make such recommendations?
> 
> People use the Fixes tag all the time for bugs that never made it into a
> release...

I agree that it probably shouldn't.

Sometimes the bug was introduced by a commit that didn't have a Cc:
stable@...nel.org, but it gets automatically pulled into a LTS kernel
due to dependency reasons, or otherwise gets auto-selected into an LTS
kernel.  So I try to add Fixes tags even for bugs that never make it
into the stable kernel --- but that doesn't mean that it should
automatically get a cc stable tag.

(Of course, it might be that the AUTOSEL process will automatically
pull in such commit, and then pull in something probably should not
been pulled into a stable tree, but this is why XFS has stable
backports maintainers --- because they don't trust the LTS automation.
For ext4, we probably see one of those sorts of the auto-backports
caused a regression maybe once a year?  But that's a different
debate.)

	    	    	       	 	     - Ted