linux-kernel - Re: [PATCH] m68k: Fix asm register constraints for atomic ops

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Date:   Mon, 26 Jul 2021 09:44:27 +1000 (AEST)
From:   Finn Thain <fthain@...ux-m68k.org>
To:     Geert Uytterhoeven <geert@...ux-m68k.org>
cc:     Greg Ungerer <gerg@...inux.org>, Will Deacon <will@...nel.org>,
        Peter Zijlstra <peterz@...radead.org>,
        Boqun Feng <boqun.feng@...il.com>,
        Brendan Jackman <jackmanb@...gle.com>,
        kernel test robot <lkp@...el.com>,
        Arnd Bergmann <arnd@...db.de>,
        Alexander Viro <viro@...iv.linux.org.uk>,
        linux-m68k@...ts.linux-m68k.org, linux-kernel@...r.kernel.org
Subject: Re: [PATCH] m68k: Fix asm register constraints for atomic ops

On Sun, 25 Jul 2021, Geert Uytterhoeven wrote:

> Fixes: d839bae4269aea46 ("locking,arch,m68k: Fold atomic_ops")
> ...
> Technically, the issue was present before, but I doubt adding pre-v3.18
> Fixes tags would make any difference for stable...

There is a better way to constrain backporting, that is Cc: 
stable@...r.kernel.org # 3.12+

The reason I mention it is that Fixes tags could be seen as a way to 
identify commits that introduce bugs, e.g. for the purposes of training 
AIs, or attributing blame, or measuring quality etc. I think it would be 
unfair to point the finger at Peter's commit.