releases/2.6.25.8/opti621-remove-dma-support.patch

   1 From stable-bounces@linux.kernel.org Wed Jun 18 14:56:42 2008
   2 From: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
   3 Date: Wed, 18 Jun 2008 23:56:06 +0200
   4 Subject: opti621: remove DMA support
   5 To: stable@kernel.org
   6 Cc: Sergei Shtylyov <sshtylyov@ru.mvista.com>, Juergen Kosel <juergen.kosel@gmx.de>
   7 Message-ID: <200806182356.06906.bzolnier@gmail.com>
   8 Content-Disposition: inline
   9
  10 From: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
  11
  12 commit f361037631ba547ea88adf8d2359d810c1b2605a upstream
  13
  14 These controllers don't support DMA.
  15
  16 Based on a bugreport from Juergen Kosel & inspired by pata_opti.c code.
  17
  18 Tested-by: Juergen Kosel <juergen.kosel@gmx.de>
  19 Acked-by: Sergei Shtylyov <sshtylyov@ru.mvista.com>
  20 Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
  21 Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
  22
  23 ---
  24  drivers/ide/pci/opti621.c |    8 ++------
  25  1 file changed, 2 insertions(+), 6 deletions(-)
  26
  27 --- a/drivers/ide/pci/opti621.c
  28 +++ b/drivers/ide/pci/opti621.c
  29 @@ -324,20 +324,16 @@ static const struct ide_port_info opti62
  30                 .name           = "OPTI621",
  31                 .init_hwif      = init_hwif_opti621,
  32                 .enablebits     = {{0x45,0x80,0x00}, {0x40,0x08,0x00}},
  33 -               .host_flags     = IDE_HFLAG_TRUST_BIOS_FOR_DMA |
  34 +               .host_flags     = IDE_HFLAG_NO_DMA |
  35                                   IDE_HFLAG_BOOTABLE,
  36                 .pio_mask       = ATA_PIO3,
  37 -               .swdma_mask     = ATA_SWDMA2,
  38 -               .mwdma_mask     = ATA_MWDMA2,
  39         },{     /* 1 */
  40                 .name           = "OPTI621X",
  41                 .init_hwif      = init_hwif_opti621,
  42                 .enablebits     = {{0x45,0x80,0x00}, {0x40,0x08,0x00}},
  43 -               .host_flags     = IDE_HFLAG_TRUST_BIOS_FOR_DMA |
  44 +               .host_flags     = IDE_HFLAG_NO_DMA |
  45                                   IDE_HFLAG_BOOTABLE,
  46                 .pio_mask       = ATA_PIO3,
  47 -               .swdma_mask     = ATA_SWDMA2,
  48 -               .mwdma_mask     = ATA_MWDMA2,
  49         }
  50  };
  51