[PATCH] sbp2: add read_capacity workaround for iPod

Apple decided to copy some USB stupidity over to FireWire.

The sector number returned by iPods from read_capacity is one too many.
This may cause I/O errors, especially if the kernel is configured for EFI
partition support. We use the same workaround as usb-storage but have to
check for different model IDs.

	http://marc.theaimsgroup.com/?t=114233262300001
	https://bugzilla.redhat.com/bugzilla/show_bug.cgi?id=187409

Acknowledgements:
  Diagnosis and therapy by Mathieu Chouquet-Stringer <ml2news@free.fr>,
  additional data about affected and unaffected Apple hardware from
  Vladimir Kotal, Sander De Graaf, Bryan Olmstead and Hugh Dixon.

Signed-off-by: Stefan Richter <stefanr@s5r6.in-berlin.de>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>

1 files changed, 1 insertions, 0 deletions

diff --git a/drivers/ieee1394/sbp2.h b/drivers/ieee1394/sbp2.h
index e40caf5d61ac..3af2710f1858 100644
--- a/drivers/ieee1394/sbp2.h
+++ b/drivers/ieee1394/sbp2.h
@@ -238,6 +238,7 @@ struct sbp2_status_block {
 #define SBP2_WORKAROUND_128K_MAX_TRANS  0x1
 #define SBP2_WORKAROUND_INQUIRY_36      0x2
 #define SBP2_WORKAROUND_MODE_SENSE_8    0x4
+#define SBP2_WORKAROUND_FIX_CAPACITY    0x8
 
 /* This is the two dma types we use for cmd_dma below */
 enum cmd_dma_types {