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| author |   Mike Rapoport <mike@compulab.co.il> | 2010-08-22 14:22:40 +0300 |
|---|---|---|
| committer |   John W. Linville <linville@tuxdriver.com> | 2010-08-27 13:13:11 -0400 |
| commit | 557de5eb29caeab56c2f97b49eec02e32a2cbe32 (patch) | |
| tree | 17ba29fd66c386b19da247c5090b2a48c28211d2 /drivers/net | |
| parent | iwlwifi: use long monitor timer for 5300 series (diff) | |
| download | linux-dev-557de5eb29caeab56c2f97b49eec02e32a2cbe32.tar.xz linux-dev-557de5eb29caeab56c2f97b49eec02e32a2cbe32.zip | |
libertas: if_sdio: fix buffer alignment in struct if_sdio_card
The commit 886275ce41a9751117367fb387ed171049eb6148 (param: lock
if_sdio's lbs_helper_name and lbs_fw_name against sysfs changes)
introduced new fields into the if_sdio_card structure. It caused
missalignment of the if_sdio_card.buffer field and failure at driver
load time:
~# modprobe libertas_sdio
[ 62.315124] libertas_sdio: Libertas SDIO driver
[ 62.319976] libertas_sdio: Copyright Pierre Ossman
[ 63.020629] DMA misaligned error with device 48
[ 63.025207] mmci-omap-hs mmci-omap-hs.1: unexpected dma status 800
[ 66.005035] libertas: command 0x0003 timed out
[ 66.009826] libertas: Timeout submitting command 0x0003
[ 66.016296] libertas: PREP_CMD: command 0x0003 failed: -110
Adding explicit alignment attribute for the if_sdio_card.buffer field
fixes this problem.
Signed-off-by: Mike Rapoport <mike@compulab.co.il>
Acked-by: Marek Vasut <marek.vasut@gmail.com>
Acked-by: Dan Williams <dcbw@redhat.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
Diffstat (limited to 'drivers/net')
| -rw-r--r-- | drivers/net/wireless/libertas/if_sdio.c | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/drivers/net/wireless/libertas/if_sdio.c b/drivers/net/wireless/libertas/if_sdio.c index 6e71346a7550..382f2371a1ab 100644 --- a/drivers/net/wireless/libertas/if_sdio.c +++ b/drivers/net/wireless/libertas/if_sdio.c @@ -126,7 +126,7 @@ struct if_sdio_card { const char *helper; const char *firmware; - u8 buffer[65536]; + u8 buffer[65536] __attribute__((aligned(4))); spinlock_t lock; struct if_sdio_packet *packets; |