linux-kernel - Re: [PATCH] clk: Move vendor's Kconfig into CCF menu section

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Date:	Wed, 27 Jan 2016 17:56:18 +0800
From:	James Liao <jamesjj.liao@...iatek.com>
To:	Arnd Bergmann <arnd@...db.de>
CC:	<linux-arm-kernel@...ts.infradead.org>,
	kbuild test robot <lkp@...el.com>,
	<srv_heupstream@...iatek.com>, <devicetree@...r.kernel.org>,
	Mike Turquette <mturquette@...libre.com>,
	Stephen Boyd <sboyd@...eaurora.org>,
	<linux-kernel@...r.kernel.org>,
	<linux-mediatek@...ts.infradead.org>, <kbuild-all@...org>,
	Sascha Hauer <kernel@...gutronix.de>,
	Matthias Brugger <matthias.bgg@...il.com>,
	<linux-clk@...r.kernel.org>
Subject: Re: [PATCH] clk: Move vendor's Kconfig into CCF menu section

Hi Arnd,

On Wed, 2016-01-27 at 10:27 +0100, Arnd Bergmann wrote:
> On Wednesday 27 January 2016 17:18:03 kbuild test robot wrote:
> > Hi James,
> > 
> > [auto build test ERROR on clk/clk-next]
> > [also build test ERROR on v4.5-rc1 next-20160127]
> > [if your patch is applied to the wrong git tree, please drop us a note to help improving the system]
> > 
> > url:    https://github.com/0day-ci/linux/commits/James-Liao/clk-Move-vendor-s-Kconfig-into-CCF-menu-section/20160127-152850
> > base:   https://git.kernel.org/pub/scm/linux/kernel/git/clk/linux.git clk-next
> > config: arm-samsung (attached as .config)
> > reproduce:
> >         wget https://git.kernel.org/cgit/linux/kernel/git/wfg/lkp-tests.git/plain/sbin/make.cross -O ~/bin/make.cross
> >         chmod +x ~/bin/make.cross
> >         # save the attached .config to linux build tree
> >         make.cross ARCH=arm 
> > 
> > All error/warnings (new ones prefixed by >>):
> > 
> > warning: (ARCH_BAST && MACH_VR1000 && MACH_ANUBIS && MACH_OSIRIS && MACH_RX1950) selects S3C2410_COMMON_DCLK which has unmet direct dependencies (COMMON_CLK)
> > warning: (CPU_S3C2410 && CPU_S3C2440 && CPU_S3C2442) selects S3C2410_COMMON_CLK which has unmet direct dependencies (COMMON_CLK)
> > warning: (CPU_S3C2412) selects S3C2412_COMMON_CLK which has unmet direct dependencies (COMMON_CLK)
> > warning: (CPU_S3C2416 && CPU_S3C2443) selects S3C2443_COMMON_CLK which has unmet direct dependencies (COMMON_CLK)
> >    drivers/built-in.o: In function `pwm_samsung_remove':
> > >> :(.text+0xba68): undefined reference to `clk_disable'
> >    drivers/built-in.o: In function `pwm_samsung_config':
> > >> :(.text+0xbc18): undefined reference to `clk_get_rate'
> >    :(.text+0xbc30): undefined reference to `clk_get_rate'
> 
> I think you should include this change in your patch, or as a preparation.
> All other samsung platforms already select COMMON_CLK through ARCH_MULTIPLATFORM,
> and all SoCs that are part of ARCH_S3C24XX individually select a symbol that
> selects COMMON_CLK.

Oops, I didn't notice there are warnings after moving these Kconfigs
into menu section.

The original motivation of this patch is preventing new clk drivers
include their Kconfig in a wrong place, so it's not critical. Do you
think we should apply this patch (with your changes below) or drop this
patch directly?


Best regards,

James

> diff --git a/arch/arm/mach-s3c24xx/Kconfig b/arch/arm/mach-s3c24xx/Kconfig
> index bf66c8334822..85e051d1c2d6 100644
> --- a/arch/arm/mach-s3c24xx/Kconfig
> +++ b/arch/arm/mach-s3c24xx/Kconfig
> @@ -15,6 +15,7 @@ config PLAT_S3C24XX
>  	select NO_IOPORT_MAP
>  	select S3C_DEV_NAND
>  	select IRQ_DOMAIN
> +	select COMMON_CLK
>  	help
>  	  Base platform code for any Samsung S3C24XX device
>  
> diff --git a/drivers/clk/samsung/Kconfig b/drivers/clk/samsung/Kconfig
> index 84196ecdaa12..b3fe5cb01afe 100644
> --- a/drivers/clk/samsung/Kconfig
> +++ b/drivers/clk/samsung/Kconfig
> @@ -1,6 +1,5 @@
>  config COMMON_CLK_SAMSUNG
>  	bool
> -	select COMMON_CLK
>  
>  config S3C2410_COMMON_CLK
>  	bool
>