linux-kernel - Re: [PATCH AUTOSEL 5.10 10/12] gpio: Revert regression in sysfs-gpio (gpiolib.c)

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Message-ID: <CACRpkdbQtP8G975s46t9-94BsvtLO3Vys99ap2=9ZR1ykLyhKw@mail.gmail.com>
Date:   Thu, 17 Mar 2022 00:41:54 +0100
From:   Linus Walleij <linus.walleij@...aro.org>
To:     Sasha Levin <sashal@...nel.org>
Cc:     linux-kernel@...r.kernel.org, stable@...r.kernel.org,
        Marcelo Roberto Jimenez <marcelo.jimenez@...il.com>,
        Bartosz Golaszewski <brgl@...ev.pl>, linux-gpio@...r.kernel.org
Subject: Re: [PATCH AUTOSEL 5.10 10/12] gpio: Revert regression in sysfs-gpio (gpiolib.c)

On Wed, Mar 16, 2022 at 5:40 PM Sasha Levin <sashal@...nel.org> wrote:
> On Wed, Mar 16, 2022 at 05:06:47PM +0100, Linus Walleij wrote:
> >On Wed, Mar 16, 2022 at 3:17 PM Sasha Levin <sashal@...nel.org> wrote:
> >
> >> From: Marcelo Roberto Jimenez <marcelo.jimenez@...il.com>
> >>
> >> [ Upstream commit fc328a7d1fcce263db0b046917a66f3aa6e68719 ]
> >>
> >> Some GPIO lines have stopped working after the patch
> >> commit 2ab73c6d8323f ("gpio: Support GPIO controllers without pin-ranges")
> >>
> >> And this has supposedly been fixed in the following patches
> >> commit 89ad556b7f96a ("gpio: Avoid using pin ranges with !PINCTRL")
> >> commit 6dbbf84603961 ("gpiolib: Don't free if pin ranges are not defined")
> >>
> >> But an erratic behavior where some GPIO lines work while others do not work
> >> has been introduced.
> >>
> >> This patch reverts those changes so that the sysfs-gpio interface works
> >> properly again.
> >>
> >> Signed-off-by: Marcelo Roberto Jimenez <marcelo.jimenez@...il.com>
> >> Signed-off-by: Bartosz Golaszewski <brgl@...ev.pl>
> >> Signed-off-by: Sasha Levin <sashal@...nel.org>
> >
> >
> >I think you should not apply this for stable, because we will revert the revert.
>
> Okay, I'll give it a week to soak and if the revert is in by then I can
> just pick it too for the sake of completeness.

The revert of the revert is already in Linus' tree:
https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=56e337f2cf1326323844927a04e9dbce9a244835

Yours,
Linus Walleij