linux-kernel - [RFC] [PATCH] Fix b43 driver build for arm

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Date:	Mon, 18 Feb 2008 15:03:10 -0700
From:	"Gordon Farquharson" <gordonfarquharson@...il.com>
To:	linux-kernel@...r.kernel.org
Cc:	linville@...driver.com, mb@...sch.de, stefano.brivio@...imi.it,
	rmk@....linux.org.uk
Subject: [RFC] [PATCH] Fix b43 driver build for arm

The b43 driver in 2.6.25-rc[12] fails to build for arm on an x86_64
box using a cross-compiler:

FATAL: drivers/net/wireless/b43/b43: sizeof(struct ssb_device_id)=6 is
not a modulo of the size of section __mod_ssb_device_table=64.
Fix definition of struct ssb_device_id in mod_devicetable.h

The following patch fixes the build, but given the discussion in
regarding the fix for the module device table definition for m68k [1],
I'm not sure that this patch is the right thing to do. However, the
fix for m68k was implemented in 2.6.25 [2].

diff --git a/include/linux/mod_devicetable.h b/include/linux/mod_devicetable.h
index 139d49d..0471294 100644
--- a/include/linux/mod_devicetable.h
+++ b/include/linux/mod_devicetable.h
@@ -351,7 +351,8 @@ struct sdio_device_id {
 struct ssb_device_id {
 	__u16	vendor;
 	__u16	coreid;
-	__u8	revision;
+	__u8	revision
+		__attribute__((aligned(sizeof(__u32))));
 };
 #define SSB_DEVICE(_vendor, _coreid, _revision)  \
 	{ .vendor = _vendor, .coreid = _coreid, .revision = _revision, }

Please CC me on replies as I'm not subscribed to the list.

Gordon

[1] http://lkml.org/lkml/2007/11/28/12
[2] http://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git;a=commitdiff;h=7492d4a416d68ab4bd254b36ffcc4e0138daa8ff

-- 
Gordon Farquharson
GnuPG Key ID: 32D6D676
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