linux-kernel - Re: [PATCH v2] ARM: sunxi: do not select COMMON

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Message-ID: <20201118153816.fctrz6dfjiph2mgl@gilmour.lan>
Date:   Wed, 18 Nov 2020 16:38:16 +0100
From:   Maxime Ripard <maxime@...no.tech>
To:     Krzysztof Kozlowski <krzk@...nel.org>
Cc:     Liam Girdwood <lgirdwood@...il.com>,
        Mark Brown <broonie@...nel.org>,
        Jaroslav Kysela <perex@...ex.cz>,
        Takashi Iwai <tiwai@...e.com>, Chen-Yu Tsai <wens@...e.org>,
        Jernej Skrabec <jernej.skrabec@...l.net>,
        Samuel Holland <samuel@...lland.org>,
        alsa-devel@...a-project.org, linux-arm-kernel@...ts.infradead.org,
        linux-kernel@...r.kernel.org
Subject: Re: [PATCH v2] ARM: sunxi: do not select COMMON_CLK to fix builds

On Tue, Nov 17, 2020 at 07:23:10PM +0100, Krzysztof Kozlowski wrote:
> COMMON_CLK is a user-selectable option with its own dependencies.  The
> most important dependency is !HAVE_LEGACY_CLK.  User-selectable drivers
> should not select COMMON_CLK because they will create a dependency cycle
> and build failures.  For example on MIPS a configuration with COMMON_CLK
> (selected by SND_SUN8I_CODEC) and HAVE_LEGACY_CLK (selected by
> SOC_RT305X) is possible:
> 
>   WARNING: unmet direct dependencies detected for COMMON_CLK
>     Depends on [n]: !HAVE_LEGACY_CLK [=y]
>     Selected by [y]:
>     - SND_SUN8I_CODEC [=y] && SOUND [=y] && !UML && SND [=y] && SND_SOC [=y] &&
>       (ARCH_SUNXI || COMPILE_TEST [=y]) && OF [=y] && (MACH_SUN8I || ARM64 && ARCH_SUNXI || COMPILE_TEST [=y])
> 
>     /usr/bin/mips-linux-gnu-ld: drivers/clk/clk.o: in function `clk_set_rate':
>     (.text+0xaeb4): multiple definition of `clk_set_rate'; arch/mips/ralink/clk.o:(.text+0x88): first defined here
> 
> Signed-off-by: Krzysztof Kozlowski <krzk@...nel.org>
> Reviewed-by: Samuel Holland <samuel@...lland.org>

Acked-by: Maxime Ripard <mripard@...nel.org>

however, I'm not sure the prefix is the one Mark would expect?

Maxime

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