tree: https://git.kernel.org/pub/scm/linux/kernel/git/balbi/usb.git testing/next head: 9c732b42aa881424b2b918e0f08f1c6f017061d3 commit: f12b2ec1c423979210a70e0e76933d7d5adf22b0 [104/108] usb: cdns3: gadget: need to handle sg case for workaround 2 case config: openrisc-allmodconfig (attached as .config) compiler: or1k-linux-gcc (GCC) 9.3.0 reproduce (this is a W=1 build): wget https://raw.githubusercontent.com/intel/lkp-tests/master/sbin/make.cross -O ~/bin/make.cross chmod +x ~/bin/make.cross # https://git.kernel.org/pub/scm/linux/kernel/git/balbi/usb.git/commit/?id=f12b2ec1c423979210a70e0e76933d7d5adf22b0 git remote add balbi-usb https://git.kernel.org/pub/scm/linux/kernel/git/balbi/usb.git git fetch --no-tags balbi-usb testing/next git checkout f12b2ec1c423979210a70e0e76933d7d5adf22b0 # save the attached .config to linux build tree COMPILER_INSTALL_PATH=$HOME/0day COMPILER=gcc-9.3.0 make.cross ARCH=openrisc If you fix the issue, kindly add following tag as appropriate Reported-by: kernel test robot <lkp@xxxxxxxxx> All warnings (new ones prefixed by >>): drivers/usb/cdns3/gadget.c: In function 'cdns3_wa2_descmiss_copy_data': >> drivers/usb/cdns3/gadget.c:509:7: warning: variable 'length' set but not used [-Wunused-but-set-variable] 509 | int length; | ^~~~~~ vim +/length +509 drivers/usb/cdns3/gadget.c f12b2ec1c423979 Peter Chen 2020-09-10 494 6bbf87a131edd39 Pawel Laszczak 2019-08-26 495 /** 6bbf87a131edd39 Pawel Laszczak 2019-08-26 496 * cdns3_wa2_descmiss_copy_data copy data from internal requests to 6bbf87a131edd39 Pawel Laszczak 2019-08-26 497 * request queued by class driver. 6bbf87a131edd39 Pawel Laszczak 2019-08-26 498 * @priv_ep: extended endpoint object 6bbf87a131edd39 Pawel Laszczak 2019-08-26 499 * @request: request object 6bbf87a131edd39 Pawel Laszczak 2019-08-26 500 */ 6bbf87a131edd39 Pawel Laszczak 2019-08-26 501 static void cdns3_wa2_descmiss_copy_data(struct cdns3_endpoint *priv_ep, 6bbf87a131edd39 Pawel Laszczak 2019-08-26 502 struct usb_request *request) 6bbf87a131edd39 Pawel Laszczak 2019-08-26 503 { 6bbf87a131edd39 Pawel Laszczak 2019-08-26 504 struct usb_request *descmiss_req; 6bbf87a131edd39 Pawel Laszczak 2019-08-26 505 struct cdns3_request *descmiss_priv_req; 6bbf87a131edd39 Pawel Laszczak 2019-08-26 506 6bbf87a131edd39 Pawel Laszczak 2019-08-26 507 while (!list_empty(&priv_ep->wa2_descmiss_req_list)) { 6bbf87a131edd39 Pawel Laszczak 2019-08-26 508 int chunk_end; 6bbf87a131edd39 Pawel Laszczak 2019-08-26 @509 int length; 6bbf87a131edd39 Pawel Laszczak 2019-08-26 510 6bbf87a131edd39 Pawel Laszczak 2019-08-26 511 descmiss_priv_req = 6bbf87a131edd39 Pawel Laszczak 2019-08-26 512 cdns3_next_priv_request(&priv_ep->wa2_descmiss_req_list); 6bbf87a131edd39 Pawel Laszczak 2019-08-26 513 descmiss_req = &descmiss_priv_req->request; 6bbf87a131edd39 Pawel Laszczak 2019-08-26 514 6bbf87a131edd39 Pawel Laszczak 2019-08-26 515 /* driver can't touch pending request */ 6bbf87a131edd39 Pawel Laszczak 2019-08-26 516 if (descmiss_priv_req->flags & REQUEST_PENDING) 6bbf87a131edd39 Pawel Laszczak 2019-08-26 517 break; 6bbf87a131edd39 Pawel Laszczak 2019-08-26 518 6bbf87a131edd39 Pawel Laszczak 2019-08-26 519 chunk_end = descmiss_priv_req->flags & REQUEST_INTERNAL_CH; 6bbf87a131edd39 Pawel Laszczak 2019-08-26 520 length = request->actual + descmiss_req->actual; 6bbf87a131edd39 Pawel Laszczak 2019-08-26 521 request->status = descmiss_req->status; f12b2ec1c423979 Peter Chen 2020-09-10 522 __cdns3_descmiss_copy_data(request, descmiss_req); 6bbf87a131edd39 Pawel Laszczak 2019-08-26 523 list_del_init(&descmiss_priv_req->list); 6bbf87a131edd39 Pawel Laszczak 2019-08-26 524 kfree(descmiss_req->buf); 6bbf87a131edd39 Pawel Laszczak 2019-08-26 525 cdns3_gadget_ep_free_request(&priv_ep->endpoint, descmiss_req); 6bbf87a131edd39 Pawel Laszczak 2019-08-26 526 --priv_ep->wa2_counter; 6bbf87a131edd39 Pawel Laszczak 2019-08-26 527 6bbf87a131edd39 Pawel Laszczak 2019-08-26 528 if (!chunk_end) 6bbf87a131edd39 Pawel Laszczak 2019-08-26 529 break; 6bbf87a131edd39 Pawel Laszczak 2019-08-26 530 } 6bbf87a131edd39 Pawel Laszczak 2019-08-26 531 } 6bbf87a131edd39 Pawel Laszczak 2019-08-26 532 :::::: The code at line 509 was first introduced by commit :::::: 6bbf87a131edd39040974f3843ff97e89310ebde usb:cdns3 Fix for stuck packets in on-chip OUT buffer. :::::: TO: Pawel Laszczak <pawell@xxxxxxxxxxx> :::::: CC: Felipe Balbi <felipe.balbi@xxxxxxxxxxxxxxx> --- 0-DAY CI Kernel Test Service, Intel Corporation https://lists.01.org/hyperkitty/list/kbuild-all@xxxxxxxxxxxx
Attachment:
.config.gz
Description: application/gzip
