linux-kernel - Re: linux-next: Tree for Sep 1 [sound/soc/mediatek/mt8195/snd-soc-mt8195-afe.ko]

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Date:   Fri, 3 Sep 2021 15:05:16 +0800
From:   Trevor Wu <trevor.wu@...iatek.com>
To:     Chen-Yu Tsai <wenst@...omium.org>
CC:     Geert Uytterhoeven <geert@...ux-m68k.org>,
        Stephen Rothwell <sfr@...b.auug.org.au>,
        ALSA Development Mailing List <alsa-devel@...a-project.org>,
        Bicycle Tsai <bicycle.tsai@...iatek.com>,
        Randy Dunlap <rdunlap@...radead.org>,
        Linux Kernel Mailing List <linux-kernel@...r.kernel.org>,
        Liam Girdwood <lgirdwood@...il.com>,
        "Mark Brown" <broonie@...nel.org>,
        Linux Next Mailing List <linux-next@...r.kernel.org>
Subject: Re: linux-next: Tree for Sep 1
 [sound/soc/mediatek/mt8195/snd-soc-mt8195-afe.ko]

On Thu, 2021-09-02 at 17:15 +0800, Chen-Yu Tsai wrote:
> On Thu, Sep 2, 2021 at 4:52 PM Trevor Wu <trevor.wu@...iatek.com>
> wrote:
> > 
> > On Thu, 2021-09-02 at 10:22 +0200, Geert Uytterhoeven wrote:
> > > Hi Trevor,
> > > 
> > > On Thu, Sep 2, 2021 at 4:37 AM Trevor Wu <trevor.wu@...iatek.com>
> > > wrote:
> > > > On Wed, 2021-09-01 at 13:55 -0700, Randy Dunlap wrote:
> > > > > On 9/1/21 1:17 AM, Stephen Rothwell wrote:
> > > > > > Please do not add any v5.16 related code to your linux-next
> > > > > > included
> > > > > > branches until after v5.15-rc1 has been released.
> > > > > > 
> > > > > > Changes since 20210831:
> > > > > > 
> > > > > 
> > > > > 
> > > > > on x86_64:
> > > > > 
> > > > > ERROR: modpost: "clkdev_add" [sound/soc/mediatek/mt8195/snd-
> > > > > soc-
> > > > > mt8195-afe.ko] undefined!
> > > > > ERROR: modpost: "clkdev_drop" [sound/soc/mediatek/mt8195/snd-
> > > > > soc-
> > > > > mt8195-afe.ko] undefined!
> > > > > ERROR: modpost: "clk_unregister_gate"
> > > > > [sound/soc/mediatek/mt8195/snd-
> > > > > soc-mt8195-afe.ko] undefined!
> > > > > ERROR: modpost: "clk_register_gate"
> > > > > [sound/soc/mediatek/mt8195/snd-
> > > > > soc-mt8195-afe.ko] undefined!
> > > > > 
> > > > > Full randconfig file is attached.
> > > > > 
> > > > 
> > > > Hi Randy,
> > > > 
> > > > The problem is caused by the dependency declaration, because
> > > > it's
> > > > not a
> > > > driver for x86_64.
> > > > The dependency declaration has been added in the following
> > > > patch.
> > > > 
> > > > 
> > 
> > 
https://urldefense.com/v3/__https://patchwork.kernel.org/project/alsa-devel/patch/7e628e359bde04ceb9ddd74a45931059b4a4623c.1630415860.git.geert*renesas@glider.be/__;Kw!!CTRNKA9wMg0ARbw!wMq130mAo-s45pP6ShQ1S8UIRuJLhwOnCbQNAQHIE2zvNhjAd67h1rlqkIDxJvC5_g$
> > > > 
> > > 
> > > That is not sufficient, if COMPILE_TEST is enabled.
> > > 
> > > Looks like it needs a dependency on COMMON_CLK, too.
> > > 
> > > Gr{oetje,eeting}s,
> > > 
> > >                         Geert
> > > 
> > 
> > Hi Geert,
> > 
> > Because it's a ARM64 driver, ARM64 will select COMMON_CLK.
> > It seems that some dependency should be checked if COMPILE_TEST is
> > enabled and the driver is compiled on non-ARM64 environment.
> > We don't expect the driver can be used on non-ARM64 environment,may
> > I
> > remove COMPILE_TEST to solve the problem?
> > If the driver only depends on ARCH_MEDIATEK, it must be compiled on
> > ARM64.
> 
> The whole point of COMPILE_TEST is that it gets compile-tested. It
> doesn't
> have to actually run.
> 
> Since the driver is using parts of the common clk framework, it
> should
> declare an explicit dependency, instead of implicitly depending on
> other symbols to enable it.
> 
> ChenYu

Hi ChenYu,

Got it. I will send a patch for the problem.

Thanks,
Trevor