linux-kernel - Re: 2.6.18-rc6-mm1 'uio_read' redefined, breaks allyesconfig on i386

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Date:	Mon, 11 Sep 2006 16:28:59 -0700
From:	Judith Lebzelter <judith@...l.org>
To:	Andrew Morton <akpm@...l.org>
Cc:	Judith Lebzelter <judith@...l.org>, tglx@...utronix.de,
	linux-kernel@...r.kernel.org, Greg KH <greg@...ah.com>,
	linux-xfs@....sgi.com
Subject: Re: 2.6.18-rc6-mm1 'uio_read' redefined, breaks allyesconfig on i386

On Mon, Sep 11, 2006 at 03:53:11PM -0700, Andrew Morton wrote:
> On Mon, 11 Sep 2006 15:45:20 -0700
> Judith Lebzelter <judith@...l.org> wrote:
> > I noticed in the 'allyesconfig' build for i386 is not working for 2.6.18-rc6-mm1.
> > The function 'uio_read' in gregkh-driver-uio.patch has the same name as a 
> > function in fs/xfs/support/move.c.  Here is the error message:
> > 
> >   LD      init/built-in.o
> >   LD      .tmp_vmlinux1
> > drivers/built-in.o(.text+0x6eb597): In function `uio_read':
> > drivers/uio/uio_dev.c:59: multiple definition of `uio_read'
> > fs/built-in.o(.text+0x2f4ee8):fs/xfs/support/move.c:26: first defined here
> > i686-unknown-linux-gnu-ld: Warning: size of symbol `uio_read' changed from 123 in fs/built-in.o to 397 in drivers/built-in.o
> > make: [.tmp_vmlinux1] Error 1 (ignored)
> >   KSYM    .tmp_kallsyms1.S
> > i686-unknown-linux-gnu-nm: '.tmp_vmlinux1': No such file
> > No valid symbol.
> > make: [.tmp_kallsyms1.S] Error 1 (ignored)
> > 
> 
> Thanks.   I'd suggest that XFS is being poorly behaved here.  "uio_read" isn't
> an appropriately named symbol for a filesystem to be exposing.

Great.  This is showing up on other platforms as well in PLM (OSDL's cross-compile 
build farm), so it will be good to see it fixed.:~)  

Judith

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