[PATCH] Relax idecd dma alignment check
Only the address needs alignment of mask bits, length should work with
a relaxed alignment check.
Signed-off-by: Jens Axboe <axboe@suse.de>
[ This is take 2: make the length check be for 16-byte alignment, not
just word alignment. That should hopefully keep everybody happy,
while still allowing CD writing with DMA ]
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
diff --git a/drivers/ide/ide-cd.c b/drivers/ide/ide-cd.c
index 78e3e7b..39f3e91 100644
--- a/drivers/ide/ide-cd.c
+++ b/drivers/ide/ide-cd.c
@@ -1936,7 +1936,7 @@
* NOTE! The "len" and "addr" checks should possibly have
* separate masks.
*/
- if ((rq->data_len & mask) || (addr & mask))
+ if ((rq->data_len & 15) || (addr & mask))
info->dma = 0;
}