diff options
| author | Felipe Balbi <felipe.balbi@linux.intel.com> | 2016-08-10 11:13:26 +0300 |
|---|---|---|
| committer | Sasha Levin <alexander.levin@verizon.com> | 2016-08-31 19:21:09 -0400 |
| commit | a694f3fa30adc8be36d7e2f8e4911a3fe705adf2 (patch) | |
| tree | 6a3a0a250a5b50b90dde3823b6fe6b4c2e9dcbc3 /fs/pipe.c | |
| parent | 60b8bcfd6a911071c8eb7de6bb9c1afc964385f1 (diff) | |
usb: dwc3: gadget: fix for short pkts during chained xfers
[ Upstream commit e5b36ae2f851024d43c76e51f395d32ce8d769ce ]
DWC3 has one interesting peculiarity with chained
transfers. If we setup N chained transfers and we
get a short packet before processing all N TRBs,
DWC3 will (conditionally) issue a XferComplete or
XferInProgress event and retire all TRBs from the
one which got a short packet to the last without
clearing their HWO bits.
This means SW must clear HWO bit manually, which
this patch is doing.
Cc: <stable@vger.kernel.org>
Cc: Brian E Rogers <brian.e.rogers@intel.com>
Signed-off-by: Felipe Balbi <felipe.balbi@linux.intel.com>
Signed-off-by: Sasha Levin <alexander.levin@verizon.com>
Diffstat (limited to 'fs/pipe.c')
0 files changed, 0 insertions, 0 deletions