linux-kernel - Re: [RFC PATCH v1 0/9] deferred_probe

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Date:   Sat, 4 Jun 2022 20:45:09 -0700
From:   Saravana Kannan <saravanak@...gle.com>
To:     Sebastian Andrzej Siewior <bigeasy@...utronix.de>
Cc:     Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
        "Rafael J. Wysocki" <rafael@...nel.org>,
        Kevin Hilman <khilman@...nel.org>,
        Ulf Hansson <ulf.hansson@...aro.org>,
        Len Brown <len.brown@...el.com>, Pavel Machek <pavel@....cz>,
        Joerg Roedel <joro@...tes.org>, Will Deacon <will@...nel.org>,
        Andrew Lunn <andrew@...n.ch>,
        Heiner Kallweit <hkallweit1@...il.com>,
        Russell King <linux@...linux.org.uk>,
        "David S. Miller" <davem@...emloft.net>,
        Eric Dumazet <edumazet@...gle.com>,
        Jakub Kicinski <kuba@...nel.org>,
        Paolo Abeni <pabeni@...hat.com>,
        Linus Walleij <linus.walleij@...aro.org>,
        Andy Shevchenko <andriy.shevchenko@...ux.intel.com>,
        Daniel Scally <djrscally@...il.com>,
        Heikki Krogerus <heikki.krogerus@...ux.intel.com>,
        Sakari Ailus <sakari.ailus@...ux.intel.com>,
        Hideaki YOSHIFUJI <yoshfuji@...ux-ipv6.org>,
        David Ahern <dsahern@...nel.org>,
        Mark Brown <broonie@...nel.org>, Rob Herring <robh@...nel.org>,
        Geert Uytterhoeven <geert@...ux-m68k.org>,
        Yoshihiro Shimoda <yoshihiro.shimoda.uh@...esas.com>,
        John Stultz <jstultz@...gle.com>,
        Nathan Chancellor <nathan@...nel.org>, kernel-team@...roid.com,
        linux-kernel@...r.kernel.org, linux-pm@...r.kernel.org,
        iommu@...ts.linux-foundation.org, netdev@...r.kernel.org,
        linux-gpio@...r.kernel.org, linux-acpi@...r.kernel.org
Subject: Re: [RFC PATCH v1 0/9] deferred_probe_timeout logic clean up

On Mon, May 30, 2022 at 1:49 AM Sebastian Andrzej Siewior
<bigeasy@...utronix.de> wrote:
>
> On 2022-05-26 01:15:39 [-0700], Saravana Kannan wrote:
> > Yoshihiro/Geert,
> Hi Saravana,
>
> > If you can test this patch series and confirm that the NFS root case
> > works, I'd really appreciate that.
>
> The two patches you sent earlier, plus this series, plus
>
> diff --git a/drivers/base/core.c b/drivers/base/core.c
> index 7ff7fbb006431..829d9b1f7403f 100644
> --- a/drivers/base/core.c
> +++ b/drivers/base/core.c
> @@ -1697,8 +1697,6 @@ static int fw_devlink_may_probe(struct device *dev, void *data)
>   */
>  void __init fw_devlink_unblock_may_probe(void)
>  {
> -       struct device_link *link, *ln;
> -
>         if (!fw_devlink_flags || fw_devlink_is_permissive())
>                 return;
>
> and it compiles + boots without a delay.

Thanks for testing! I missed your reply until now and I ended up
sending out a v2 a few days back. That's a much better series IMO
because it only temporarily ignores dependencies and only when NFS
root mounting might not work. If you can test that too (and it
shouldn't have the useless variable), I'd appreciate it.

-Saravana