[PATCH] relax ide-cd dma restrictions
This has been sitting for a while, and is causing lots of grief for
people burning CDs. It relaxes the dma restriction for ide-cd,
requiring only the length to be 32-byte aligned, address should be fine
at normal double word alignment.
Signed-off-by: Jens Axboe <axboe@suse.de>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
diff --git a/drivers/ide/ide-cd.c b/drivers/ide/ide-cd.c
index 33a020f..4f7ce70 100644
--- a/drivers/ide/ide-cd.c
+++ b/drivers/ide/ide-cd.c
@@ -1933,7 +1933,7 @@
/*
* check if dma is safe
*/
- if ((rq->data_len & mask) || (addr & mask))
+ if ((rq->data_len & 3) || (addr & mask))
info->dma = 0;
}