linux-kernel - Re: [PATCH 1/2] MMC / TMIO: Fix build issue related to struct scatterlist

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Message-Id: <201107280006.26466.rjw@sisk.pl>
Date:	Thu, 28 Jul 2011 00:06:26 +0200
From:	"Rafael J. Wysocki" <rjw@...k.pl>
To:	Chris Ball <cjb@...top.org>
Cc:	Linus Torvalds <torvalds@...ux-foundation.org>,
	LKML <linux-kernel@...r.kernel.org>, linux-sh@...r.kernel.org,
	"Greg Kroah-Hartman" <gregkh@...e.de>, linux-usb@...r.kernel.org,
	linux-mmc@...r.kernel.org
Subject: Re: [PATCH 1/2] MMC / TMIO: Fix build issue related to struct scatterlist

On Wednesday, July 27, 2011, Chris Ball wrote:
> Hi Rafael,
> 
> On Tue, Jul 26 2011, Rafael J. Wysocki wrote:
> > From: Rafael J. Wysocki <rjw@...k.pl>
> >
> > Fix build issue caused by undefined struct scatterlist in
> > drivers/mmc/host/tmio_mmc.c.
> >
> > Signed-off-by: Rafael J. Wysocki <rjw@...k.pl>
> > ---
> >  drivers/mmc/host/tmio_mmc.h      |    1 +
> >  drivers/usb/renesas_usbhs/fifo.c |    1 +
> >  2 files changed, 2 insertions(+)
> >
> > Index: linux-2.6/drivers/mmc/host/tmio_mmc.h
> > ===================================================================
> > --- linux-2.6.orig/drivers/mmc/host/tmio_mmc.h
> > +++ linux-2.6/drivers/mmc/host/tmio_mmc.h
> > @@ -21,6 +21,7 @@
> >  #include <linux/mutex.h>
> >  #include <linux/pagemap.h>
> >  #include <linux/spinlock.h>
> > +#include <linux/scatterlist.h>
> >  
> >  /* Definitions for values the CTRL_SDIO_STATUS register can take. */
> >  #define TMIO_SDIO_STAT_IOIRQ	0x0001
> 
> I'm not able to reproduce the build failure here.
> 
> drivers/mmc/host/tmio_mmc.c already performs "#include <linux/scatterlist.h>"
> itself (and always has done), so I'm confused about why this is necessary.
> Do you have a copy of your build log with the error?

tmio_mmc.h is included by sh_mobile_sdhi.c too and that one doesn't include
scatterlist.h, which causes a build failure to happen, becuase of the
bounce_sg member of struct tmio_mmc_host.

The patch has been merged already anyway.

Thanks,
Rafael
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