linux-kernel - Re: [PATCH 6/6] regulator: core: simplify lock

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Message-ID: <CAD=FV=XbfBf9y1sdt9T=81cTCRcRUbVqo3oKrHvBQZC+hHQpCQ@mail.gmail.com>
Date:   Mon, 21 Aug 2023 09:51:08 -0700
From:   Doug Anderson <dianders@...omium.org>
To:     Michał Mirosław <mirq-linux@...e.qmqm.pl>
Cc:     Liam Girdwood <lgirdwood@...il.com>,
        Mark Brown <broonie@...nel.org>, linux-kernel@...r.kernel.org,
        Dmitry Osipenko <digetx@...il.com>,
        Stephen Boyd <swboyd@...omium.org>
Subject: Re: [PATCH 6/6] regulator: core: simplify lock_two()

Hi,

On Sat, Aug 19, 2023 at 3:46 PM Michał Mirosław <mirq-linux@...e.qmqm.pl> wrote:
>
> Make regulator_lock_two() shorter by observing that we have only two
> locks and when swapped earlier the retry code becomes identical to the
> normal (optimistic) path.
>
> Signed-off-by: Michał Mirosław <mirq-linux@...e.qmqm.pl>
> ---
>  drivers/regulator/core.c | 28 ++++++++++------------------
>  1 file changed, 10 insertions(+), 18 deletions(-)

This is quite nearly a direct revert of commit 37473397b852
("regulator: core: Make regulator_lock_two() logic easier to follow"),
which was requested by Stephen in:

https://lore.kernel.org/r/CAE-0n53Eb1BeDPmjBycXUaQAF4ppiAM6UDWje_jiB9GAmR8MMw@mail.gmail.com

I don't personally have a strong opinion, but do prefer not to flip-flop. ;-)


-Doug