The ARM OABI and EABI disagree on the alignment of structures
with small members, so module init tools may interpret the
ssb device table incorrectly, as shown by this warning when
building the b43 device driver in an OABI kernel:
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=88.
Forcing the default (EABI) alignment on the structure makes this
problem go away. Since the ssb_device_id may have the same problem,
better fix both structures.
Signed-off-by: Arnd Bergmann <a...@arndb.de>
Cc: Russell King <li...@arm.linux.org.uk>
Cc: John W. Linville <linvi...@tuxdriver.com>
Cc: Michael Buesch <m...@bu3sch.de>
Cc: Larry Finger <larry.fin...@lwfinger.net>
---
include/linux/mod_devicetable.h | 5 +++--
1 file changed, 3 insertions(+), 2 deletions(-)
diff --git a/include/linux/mod_devicetable.h b/include/linux/mod_devicetable.h
index 779cf7c..ce363a5 100644
--- a/include/linux/mod_devicetable.h
+++ b/include/linux/mod_devicetable.h
@@ -360,7 +360,8 @@ struct ssb_device_id {
__u16 vendor;
__u16 coreid;
__u8 revision;
-};
+ __u8 __pad;
+} __attribute__((packed, aligned(2)));
#define SSB_DEVICE(_vendor, _coreid, _revision) \
{ .vendor = _vendor, .coreid = _coreid, .revision = _revision, }
#define SSB_DEVTABLE_END \
@@ -376,7 +377,7 @@ struct bcma_device_id {
__u16 id;
__u8 rev;
__u8 class;
-};
+} __attribute__((packed,aligned(2)));
#define BCMA_CORE(_manuf, _id, _rev, _class) \
{ .manuf = _manuf, .id = _id, .rev = _rev, .class = _class, }
#define BCMA_CORETABLE_END \
--
1.8.1.2
--
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majord...@vger.kernel.org
More majordomo info at http://vger.kernel.org/majordomo-info.html
Please read the FAQ at http://www.tux.org/lkml/
