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Bartlomiej Zolnierkiewicz 346c17a6cf ide: relax DMA info validity checking 
There are some broken devices that report multiple DMA xfer modes
enabled at once (ATA spec doesn't allow it) but otherwise work fine
with DMA so just delete ide_id_dma_bug().

[ As discovered by detective work by Frans and Bart, due to how
  handling of the ID block was handled before commit c419993
  ("ide-iops: only clear DMA words on setting DMA mode") this
  check was always seeing zeros in the fields or other similar
  garbage.  Therefore this check wasn't actually checking anything.
  Now that the tests actually check the real bits, all we see are
  devices that trigger the check yet work perfectly fine, therefore
  killing this useless check is the best thing to do. -DaveM ]

Reported-by: Frans Pop <elendil@planet.nl>
Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2009-06-24 00:32:32 -07:00
..
acpi ACPICA: Update version to 20090521. 2009-05-27 00:41:34 -04:00
asm-generic Merge branch 'perfcounters-fixes-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip 2009-06-20 11:29:32 -07:00
crypto
drm drm: EDID endianness fixes. 2009-06-19 09:11:13 +10:00
keys
linux ide: relax DMA info validity checking 2009-06-24 00:32:32 -07:00
math-emu
media V4L/DVB (11933): tuner-simple, tveeprom: Add Philips FQ1216LME MK3 analog tuner 2009-06-16 19:07:25 -03:00
mtd
net Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-next-2.6 2009-06-18 14:07:15 -07:00
pcmcia
rdma
rxrpc
scsi Merge git://git.kernel.org/pub/scm/linux/kernel/git/jejb/scsi-misc-2.6 2009-06-17 09:50:44 -07:00
sound Merge branch 'topic/pcm-jiffies-check' into for-linus 2009-06-10 07:26:41 +02:00
trace ext4: convert instrumentation from markers to tracepoints 2009-06-17 11:48:11 -04:00
video fbdev: s1d13xxxfb: add accelerated bitblt functions 2009-06-16 19:48:00 -07:00
xen Merge branches 'for-linus/xen/dev-evtchn', 'for-linus/xen/xenbus', 'for-linus/xen/xenfs' and 'for-linus/xen/sys-hypervisor' into for-linus/xen/master 2009-03-30 10:00:45 -07:00
Kbuild [SCSI] FC Pass Thru support 2009-06-12 14:20:05 -05:00