linux-kernel - Re: [PATCH] driver core: Avoid pointless deferred probe attempts

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Message-ID: <CAMuHMdUo_2WPxDeckhF3nt2+p5eG=mpP84a_fWFZnXyeohqo0g@mail.gmail.com>
Date:   Tue, 23 Feb 2021 11:09:58 +0100
From:   Geert Uytterhoeven <geert@...ux-m68k.org>
To:     Saravana Kannan <saravanak@...gle.com>
Cc:     Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
        "Rafael J. Wysocki" <rafael@...nel.org>,
        Android Kernel Team <kernel-team@...roid.com>,
        Linux Kernel Mailing List <linux-kernel@...r.kernel.org>
Subject: Re: [PATCH] driver core: Avoid pointless deferred probe attempts

Hi Saravana,

On Thu, Feb 18, 2021 at 12:51 AM Saravana Kannan <saravanak@...gle.com> wrote:
> There's no point in adding a device to the deferred probe list if we
> know for sure that it doesn't have a matching driver. So, check if a
> device can match with a driver before adding it to the deferred probe
> list.
>
> Signed-off-by: Saravana Kannan <saravanak@...gle.com>

Thanks for your patch!

> ---
> Geert,
>
> Can you give this a shot for your I2C DMA issue with fw_devlink=on?

Yes, this makes I2C use DMA again on Salvator-XS during kernel boot-up.

I haven't run any more elaborate tests on other platforms.

Gr{oetje,eeting}s,

                        Geert

-- 
Geert Uytterhoeven -- There's lots of Linux beyond ia32 -- geert@...ux-m68k.org

In personal conversations with technical people, I call myself a hacker. But
when I'm talking to journalists I just say "programmer" or something like that.
                                -- Linus Torvalds