linux-kernel - Re: [RESEND][PATCH 1/2] lib/scatterlist: Make ARCH_HAS_SG

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Message-ID: <20140323070343.GA17945@infradead.org>
Date:	Sun, 23 Mar 2014 00:03:43 -0700
From:	Christoph Hellwig <hch@...radead.org>
To:	Benjamin Herrenschmidt <benh@...nel.crashing.org>
Cc:	Laura Abbott <lauraa@...eaurora.org>,
	Russell King <linux@....linux.org.uk>,
	"David S. Miller" <davem@...emloft.net>,
	Thomas Gleixner <tglx@...utronix.de>,
	Ingo Molnar <mingo@...hat.com>,
	"H. Peter Anvin" <hpa@...or.com>, x86@...nel.org,
	"James E.J. Bottomley" <JBottomley@...allels.com>,
	Fenghua Yu <fenghua.yu@...el.com>,
	Tony Luck <tony.luck@...el.com>,
	Paul Mackerras <paulus@...ba.org>,
	Martin Schwidefsky <schwidefsky@...ibm.com>,
	Heiko Carstens <heiko.carstens@...ibm.com>,
	Andrew Morton <akpm@...ux-foundation.org>,
	linux-kernel@...r.kernel.org, linuxppc-dev@...ts.ozlabs.org,
	linux-s390@...r.kernel.org, sparclinux@...r.kernel.org,
	linux-scsi@...r.kernel.org, linux-ia64@...r.kernel.org,
	linux390@...ibm.com, linux-arm-kernel@...ts.infradead.org
Subject: Re: [RESEND][PATCH 1/2] lib/scatterlist: Make ARCH_HAS_SG_CHAIN an
 actual Kconfig

On Sun, Mar 23, 2014 at 02:04:46PM +1100, Benjamin Herrenschmidt wrote:
> 
> > diff --git a/arch/arm/Kconfig b/arch/arm/Kconfig
> > index 1594945..8122294 100644
> > --- a/arch/arm/Kconfig
> > +++ b/arch/arm/Kconfig
> > @@ -82,6 +82,7 @@ config ARM
> >  	  <http://www.arm.linux.org.uk/>.
> >  
> >  config ARM_HAS_SG_CHAIN
> > +	select ARCH_HAS_SG_CHAIN
> >  	bool
> >  
> 
> Heh, a self-selecting config option... I didn't know that trick !

ARM vs ARCH.  However the arm variant of the variable should probably be
consolidated into the ARCH one as a follow up.

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