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[PATCH] sb1250-mac: Ensure 16-byte alignment of the descriptor ring.

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Signed-off-by: Ralf Baechle <ralf@linux-mips.org>

 drivers/net/sb1250-mac.c |    9 ++++++++-
 1 files changed, 8 insertions(+), 1 deletion(-)
Signed-off-by: Jeff Garzik <jgarzik@pobox.com>
This commit is contained in:
Ralf Baechle 2005-10-10 14:50:36 +01:00 committed by Jeff Garzik
parent f567ef9350
commit 04115def6a
1 changed files with 8 additions and 1 deletions
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9
drivers/net/sb1250-mac.c
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@ -750,7 +750,14 @@ static void sbdma_initctx(sbmacdma_t *d,
d->sbdma_maxdescr = maxdescr;
d->sbdma_dscrtable = (sbdmadscr_t *)
kmalloc(d->sbdma_maxdescr*sizeof(sbdmadscr_t), GFP_KERNEL);
kmalloc((d->sbdma_maxdescr+1)*sizeof(sbdmadscr_t), GFP_KERNEL);
/*
* The descriptor table must be aligned to at least 16 bytes or the
* MAC will corrupt it.
*/
d->sbdma_dscrtable = (sbdmadscr_t *)
ALIGN((unsigned long)d->sbdma_dscrtable, sizeof(sbdmadscr_t));
memset(d->sbdma_dscrtable,0,d->sbdma_maxdescr*sizeof(sbdmadscr_t));