linux-kernel - Re: [Linuxarm] [PATCH for next v1 0/2] gpio: few clean up patches to replace spin_lock_irqsave with spin

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Message-ID: <CAHp75VcpeYpsW6B85F0u=B+GToNh=1fYdRSMeQqE0vOtOdSi8A@mail.gmail.com>
Date:   Mon, 8 Feb 2021 15:28:44 +0200
From:   Andy Shevchenko <andy.shevchenko@...il.com>
To:     luojiaxing <luojiaxing@...wei.com>
Cc:     Linus Walleij <linus.walleij@...aro.org>,
        Andy Shevchenko <andriy.shevchenko@...ux.intel.com>,
        Grygorii Strashko <grygorii.strashko@...com>,
        Santosh Shilimkar <ssantosh@...nel.org>,
        Kevin Hilman <khilman@...nel.org>,
        "open list:GPIO SUBSYSTEM" <linux-gpio@...r.kernel.org>,
        Linux Kernel Mailing List <linux-kernel@...r.kernel.org>,
        linuxarm@...neuler.org
Subject: Re: [Linuxarm] [PATCH for next v1 0/2] gpio: few clean up patches to
 replace spin_lock_irqsave with spin_lock

On Mon, Feb 8, 2021 at 11:11 AM luojiaxing <luojiaxing@...wei.com> wrote:
>
> Sorry, my operation error causes a patch missing from this patch set. I
> re-send the patch set. Please check the new one.

What is the new one?! You have to give proper versioning and change
log for your series.

> On 2021/2/8 16:56, Luo Jiaxing wrote:
> > There is no need to use API with _irqsave in hard IRQ handler, So replace
> > those with spin_lock.

How do you know that another CPU in the system can't serve the
following interrupt from the hardware at the same time?

-- 
With Best Regards,
Andy Shevchenko