linux-kernel - Re: m68k build failure

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Date:	Thu, 29 Nov 2007 13:19:42 -0800
From:	Andrew Morton <akpm@...ux-foundation.org>
To:	Al Viro <viro@....linux.org.uk>
Cc:	drzeus@...eus.cx, geert@...ux-m68k.org, sam@...nborg.org,
	marcel@...tmann.org, linux-kernel@...r.kernel.org
Subject: Re: m68k build failure

On Wed, 28 Nov 2007 09:28:56 +0000
Al Viro <viro@....linux.org.uk> wrote:

> On Wed, Nov 28, 2007 at 01:00:56AM -0800, Andrew Morton wrote:
> > > No the slightest. 12 seems like the correct, padded size. A size of 10 is just weird as the unpadded size is 9 bytes. Could you dump the __mod_sdio_device_table section so we can determine if it is cropped or just oddly padded.
> > > 
> > 
> > err, I'd rather not.  I have no shortage of bugs to be going on with here.
> > 
> > http://userweb.kernel.org/~akpm/cross-compilers/ has the i386->m68k
> > cross-compiler which I use.
> 
> Eh...  m68k has 16bit alignment for unsigned long.  
> 
> diff --git a/include/linux/mod_devicetable.h b/include/linux/mod_devicetable.h
> --- a/include/linux/mod_devicetable.h
> +++ b/include/linux/mod_devicetable.h
> @@ -343,7 +343,8 @@ struct sdio_device_id {
>  	__u8	class;			/* Standard interface or SDIO_ANY_ID */
>  	__u16	vendor;			/* Vendor or SDIO_ANY_ID */
>  	__u16	device;			/* Device ID or SDIO_ANY_ID */
> -	kernel_ulong_t driver_data;	/* Data private to the driver */
> +	kernel_ulong_t driver_data	/* Data private to the driver */
> +		__attribute__((aligned(sizeof(kernel_ulong_t))));
>  };
>  
>  /* SSB core, see drivers/ssb/ */

That works, but it's a bit obscure.

sdio_device_id didn't exist in 2.6.23 so we still have time to turn it into
some saner layout.

Who owns this code, anwyay?
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