linux-kernel - Re: m68k build failure

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Message-ID: <20071128092856.GV8181@ftp.linux.org.uk>
Date:	Wed, 28 Nov 2007 09:28:56 +0000
From:	Al Viro <viro@....linux.org.uk>
To:	Andrew Morton <akpm@...ux-foundation.org>
Cc:	Pierre Ossman <drzeus@...eus.cx>,
	Geert Uytterhoeven <geert@...ux-m68k.org>,
	Sam Ravnborg <sam@...nborg.org>,
	Marcel Holtmann <marcel@...tmann.org>,
	linux-kernel@...r.kernel.org
Subject: Re: m68k build failure

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/ */
-
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