| commit | ba0a4d9aaae789a6a632968b27c21d49b858b13a | |
| author | Sarah Sharp <sarah.a.sharp@linux.intel.com> | |
| Thu, 24 Feb 2011 02:13:43 +0000 (23 18:13 -0800) | ||
| committer | Sarah Sharp <sarah.a.sharp@linux.intel.com> | |
| Mon, 14 Mar 2011 01:23:56 +0000 (13 18:23 -0700) | ||
| tree | 22e76438fe70720fa89d683586009cc028bceb0e | treesnapshot (tar.gz zip) |
| parent | 01a1fdb9a7afa5e3c14c9316d6f380732750b4e4 | commitdiff |
xhci: Clean up cycle bit math used during stalls.
Use XOR to invert the cycle bit, instead of a more complicated
calculation. Eliminate a check for the link TRB type in find_trb_seg().
We know that there will always be a link TRB at the end of a segment, so
xhci_segment->trbs[TRBS_PER_SEGMENT - 1] will always have a link TRB type.
Signed-off-by: Sarah Sharp <sarah.a.sharp@linux.intel.com>
Tested-by: Takashi Iwai <tiwai@suse.de>
Use XOR to invert the cycle bit, instead of a more complicated
calculation. Eliminate a check for the link TRB type in find_trb_seg().
We know that there will always be a link TRB at the end of a segment, so
xhci_segment->trbs[TRBS_PER_SEGMENT - 1] will always have a link TRB type.
Signed-off-by: Sarah Sharp <sarah.a.sharp@linux.intel.com>
Tested-by: Takashi Iwai <tiwai@suse.de>
| drivers/usb/host/xhci-ring.c | diffblobblamehistory |