linux-kernel - Re: [PATCH] pinctrl: armada-37xx: remove unused variable

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Date:   Fri, 3 Nov 2017 10:11:21 +0100
From:   Arnd Bergmann <arnd@...db.de>
To:     Linus Walleij <linus.walleij@...aro.org>
Cc:     Jason Cooper <jason@...edaemon.net>, Andrew Lunn <andrew@...n.ch>,
        Gregory Clement <gregory.clement@...e-electrons.com>,
        Sebastian Hesselbarth <sebastian.hesselbarth@...il.com>,
        Ken Ma <make@...vell.com>, Thierry Reding <treding@...dia.com>,
        "linux-arm-kernel@...ts.infradead.org" 
        <linux-arm-kernel@...ts.infradead.org>,
        "linux-gpio@...r.kernel.org" <linux-gpio@...r.kernel.org>,
        "linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>
Subject: Re: [PATCH] pinctrl: armada-37xx: remove unused variable

On Fri, Nov 3, 2017 at 8:46 AM, Linus Walleij <linus.walleij@...aro.org> wrote:
> On Thu, Nov 2, 2017 at 3:29 PM, Arnd Bergmann <arnd@...db.de> wrote:
>
>> A cleanup left behind a temporary variable that is now unused:
>>
>> drivers/pinctrl/mvebu/pinctrl-armada-37xx.c: In function 'armada_37xx_irq_startup':
>> drivers/pinctrl/mvebu/pinctrl-armada-37xx.c:693:20: error: unused variable 'chip' [-Werror=unused-variable]
>>
>> This removes the declarations as well.
>>
>> Fixes: 3ee9e605caea ("pinctrl: armada-37xx: Stop using struct gpio_chip.irq_base")
>> Signed-off-by: Arnd Bergmann <arnd@...db.de>
>
> It is used on the head of development, so it's fixed in -next.
>
> Is it such a big issue for v4.14 that you think I should send it
> to Torvalds as a fix at this point or can I just leave it?

I'm confused. The build warning showed up in linux-next yesterday after
3ee9e605caea got merged, which removes the user of that variable.
In v4.14 it is still used.

         Arnd