On 8/31/2015 10:21 PM, Sergei Shtylyov wrote:
From: Ville Syrjälä <ville.syrjala@xxxxxxxxxxxxxxx> This reverts commit 8f2c9544aba636134303105ecb164190a39dece4. As it breaks g_ether on my Baytrail FFRD8 device. Everything starts out fine, but after a bit of data has been transferred it just stops flowing. Note that I do get a bunch of these "NOHZ: local_softirq_pending 08" when booting the machine, but I'm not really sure if they're related to this problem. Cc: Felipe Balbi <balbi@xxxxxx> Cc: Greg Kroah-Hartman <gregkh@xxxxxxxxxxxxxxxxxxx> Cc: linux-usb@xxxxxxxxxxxxxxx Cc: stable@xxxxxxxxxxxxxxx Signed-off-by: Ville Syrjälä <ville.syrjala@xxxxxxxxxxxxxxx> --- drivers/usb/dwc3/gadget.c | 37 +++++++++++++++++++++---------------- 1 file changed, 21 insertions(+), 16 deletions(-) diff --git a/drivers/usb/dwc3/gadget.c b/drivers/usb/dwc3/gadget.c index 333a7c0..9a5de54 100644 --- a/drivers/usb/dwc3/gadget.c +++ b/drivers/usb/dwc3/gadget.c @@ -1859,27 +1859,32 @@ static int dwc3_cleanup_done_reqs(struct dwc3 *dwc, struct dwc3_ep *dep, unsigned int i; int ret; - req = next_request(&dep->req_queued); - if (!req) { - WARN_ON_ONCE(1); - return 1; - } - i = 0; do { - slot = req->start_slot + i; - if ((slot == DWC3_TRB_NUM - 1) && + req = next_request(&dep->req_queued); + if (!req) { + WARN_ON_ONCE(1); + return 1; + } + i = 0; + do { + slot = req->start_slot + i; + if ((slot == DWC3_TRB_NUM - 1) && usb_endpoint_xfer_isoc(dep->endpoint.desc)) - slot++; - slot %= DWC3_TRB_NUM; - trb = &dep->trb_pool[slot]; + slot++; + slot %= DWC3_TRB_NUM; + trb = &dep->trb_pool[slot]; + + ret = __dwc3_cleanup_done_trbs(dwc, dep, req, trb, + event, status); + if (ret) + break; + }while (++i < req->request.num_mapped_sgs);Space needed after }. And this *do {} while* loop seems replaceable with *foor* loop...
Sorry, didn't realize it was a revert. :-/
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MBR, Sergei -- To unsubscribe from this list: send the line "unsubscribe stable" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html