[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 <[e-mail]>
Signed-off-by: Linus Torvalds <[e-mail]>

drivers/ide/ide-cd.c

···
 		/*
 		 * check if dma is safe
 		 */
-		if ((rq->data_len & mask) || (addr & mask))
+		if ((rq->data_len & 3) || (addr & mask))
 			info->dma = 0;
 	}