linux-kernel - Re: [PATCH v2 1/2] soc/fsl: add freescale dir for SOC specific drivers

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Date:	Wed, 12 Aug 2015 09:03:54 +0100
From:	Russell King - ARM Linux <linux@....linux.org.uk>
To:	Wang Dongsheng <Dongsheng.Wang@...escale.com>
Cc:	"shawn.guo@...aro.org" <shawn.guo@...aro.org>,
	Huan Wang <alison.wang@...escale.com>,
	"linus.walleij@...aro.org" <linus.walleij@...aro.org>,
	"linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>,
	"sandeep_n@...com" <sandeep_n@...com>,
	"hdegoede@...hat.com" <hdegoede@...hat.com>,
	"linux-arm-kernel@...ts.infradead.org" 
	<linux-arm-kernel@...ts.infradead.org>
Subject: Re: [PATCH v2 1/2] soc/fsl: add freescale dir for SOC specific
 drivers

On Wed, Aug 12, 2015 at 08:01:32AM +0000, Wang Dongsheng wrote:
> Hi Russell,
> 
> Thanks for your review. :)
> 
> > -----Original Message-----
> > From: Russell King - ARM Linux [mailto:linux@....linux.org.uk]
> > Sent: Wednesday, August 12, 2015 3:45 PM
> > To: Wang Dongsheng-B40534
> > Cc: shawn.guo@...aro.org; Wang Huan-B18965; linus.walleij@...aro.org; linux-
> > kernel@...r.kernel.org; sandeep_n@...com; hdegoede@...hat.com; linux-arm-
> > kernel@...ts.infradead.org
> > Subject: Re: [PATCH v2 1/2] soc/fsl: add freescale dir for SOC specific drivers
> > 
> > On Wed, Aug 12, 2015 at 01:53:26PM +0800, Dongsheng Wang wrote:
> > > diff --git a/drivers/soc/fsl/Kconfig b/drivers/soc/fsl/Kconfig new
> > > file mode 100644 index 0000000..863d1ef
> > > --- /dev/null
> > > +++ b/drivers/soc/fsl/Kconfig
> > > @@ -0,0 +1,18 @@
> > > +#
> > > +# Freescale SOC drivers
> > > +#
> > > +menuconfig FSL_SOC_DRIVERS
> > > +	bool "Freescale Soc Drivers"
> > > +	default n
> > 
> > No need for default n.
> 
> Thanks. Fix it in next version.
> 
> > > +	help
> > > +	Say y here to enable Freescale LS1021A Soc Device Drivers support.
> > > +	The Soc Drivers provides the device driver that is a specific block
> > > +	or feature on LS1021A platform.
> > 
> > Help text should be indented by two spaces as per almost every other help text.
> > 
> 
> Thanks. My mistake...
> 
> > > +
> > > +if LS1_SOC_DRIVERS
> > > +	source "drivers/soc/fsl/ls1/Kconfig"
> > > +endif
> > > diff --git a/drivers/soc/fsl/Makefile b/drivers/soc/fsl/Makefile new
> > > file mode 100644 index 0000000..b4215dd
> > > --- /dev/null
> > > +++ b/drivers/soc/fsl/Makefile
> > > @@ -0,0 +1,6 @@
> > > +#
> > > +# Makefile for Freescale Soc specific device drivers.
> > > +#
> > > +
> > > +obj-$(CONFIG_LS1_SOC_DRIVERS) += ls1/
> > > +
> > > diff --git a/drivers/soc/fsl/ls1/Kconfig b/drivers/soc/fsl/ls1/Kconfig
> > > new file mode 100644 index 0000000..7556f44
> > > --- /dev/null
> > > +++ b/drivers/soc/fsl/ls1/Kconfig
> > > @@ -0,0 +1,3 @@
> > > +#
> > > +# LS-1 Soc drivers
> > > +#
> > 
> > Doesn't this directory need a Makefile as well?
> > 
> 
> 2/2 patch add a config option and Makefile for this.

If _just_ this patch is merged, it creates a build problem as
CONFIG_LS1_SOC_DRIVERS can be enabled, which will cause the kbuild to
decend into drivers/soc/fsl/ls1, where it will stop due to the missing
build error.

Please fix this by adding at least an empty Makefile to this directory.
Do not rely on patch 2 being merged to "fix" this.

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