Commit 04115def authored by Ralf Baechle's avatar Ralf Baechle Committed by Jeff Garzik
Browse files

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



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

 drivers/net/sb1250-mac.c |    9 ++++++++-
 1 files changed, 8 insertions(+), 1 deletion(-)
Signed-off-by: default avatarJeff Garzik <jgarzik@pobox.com>
parent f567ef93

drivers/net/sb1250-mac.c

+8 −1
Original line number Diff line number Diff line
@@ -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));