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authorJohn Stultz <john.stultz@linaro.org>2020-05-04 23:12:15 +0000
committerFelipe Balbi <balbi@kernel.org>2020-05-09 11:04:49 +0300
commit00e21763f2c8cab21b7befa52996d1b18bde5c42 (patch)
tree37c50228cc028e23fbb5ab92cdab2b093d8f4f6b /drivers/usb/dwc3/dwc3-pci.c
parentd5eeab8d7e269e8cfc53b915bccd7bd30485bcbf (diff)
dwc3: Remove check for HWO flag in dwc3_gadget_ep_reclaim_trb_sg()
The check for the HWO flag in dwc3_gadget_ep_reclaim_trb_sg() causes us to break out of the loop before we call dwc3_gadget_ep_reclaim_completed_trb(), which is what likely should be clearing the HWO flag. This can cause odd behavior where we never reclaim all the trbs in the sg list, so we never call giveback on a usb req, and that will causes transfer stalls. This effectively resovles the adb stalls seen on HiKey960 after userland changes started only using AIO in adbd. Cc: YongQin Liu <yongqin.liu@linaro.org> Cc: Anurag Kumar Vulisha <anurag.kumar.vulisha@xilinx.com> Cc: Yang Fei <fei.yang@intel.com> Cc: Thinh Nguyen <thinhn@synopsys.com> Cc: Tejas Joglekar <tejas.joglekar@synopsys.com> Cc: Andrzej Pietrasiewicz <andrzej.p@collabora.com> Cc: Jack Pham <jackp@codeaurora.org> Cc: Josh Gao <jmgao@google.com> Cc: Todd Kjos <tkjos@google.com> Cc: Felipe Balbi <balbi@kernel.org> Cc: Greg Kroah-Hartman <gregkh@linuxfoundation.org> Cc: linux-usb@vger.kernel.org Cc: stable@vger.kernel.org #4.20+ Signed-off-by: John Stultz <john.stultz@linaro.org> Signed-off-by: Felipe Balbi <balbi@kernel.org>
Diffstat (limited to 'drivers/usb/dwc3/dwc3-pci.c')
0 files changed, 0 insertions, 0 deletions