ide: remove redundant DMA blacklist check from __ide_dma_on()

->ide_dma_on method is called only after successful ide_dma_check() call
(ide_dma_check()->ide_tune_dma() checks DMA blacklist) or if drive->using_dma
has been previously enabled for a given device (->ide_dma_on is the only place
which sets drive->using_dma to '1').

There should be no functionality changes caused by this patch.

Acked-by: Sergei Shtylyov <sshtylyov@ru.mvista.com>
Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>

diff --git a/drivers/ide/ide-dma.c b/drivers/ide/ide-dma.c
index 01036305d6fcb55a1c82e97246f7401c2cf48bb2..18c78ad2b31ec5e410d57dc5f448c34a07da2a6e 100644 (file)
--- a/drivers/ide/ide-dma.c
+++ b/drivers/ide/ide-dma.c
@@ -491,10 +491,6 @@ EXPORT_SYMBOL(ide_dma_host_on);
  
 int __ide_dma_on (ide_drive_t *drive)
 {
  
 int __ide_dma_on (ide_drive_t *drive)
 {

-       /* consult the list of known "bad" drives */
-       if (__ide_dma_bad_drive(drive))
-               return 1;
-

        drive->using_dma = 1;
        ide_toggle_bounce(drive, 1);
 
        drive->using_dma = 1;
        ide_toggle_bounce(drive, 1);