Hi Minas, Thank you for the patch! Perhaps something to improve: [auto build test WARNING on next-20180309] [cannot apply to v4.16-rc4 v4.16-rc3 v4.16-rc2 v4.16-rc5] [if your patch is applied to the wrong git tree, please drop us a note to help improve the system] url: https://github.com/0day-ci/linux/commits/Minas-Harutyunyan/usb-dwc2-gadget-Update-ISOC-DDMA-flow/20180317-012732 config: i386-randconfig-x075-201810 (attached as .config) compiler: gcc-7 (Debian 7.3.0-1) 7.3.0 reproduce: # save the attached .config to linux build tree make ARCH=i386 All warnings (new ones prefixed by >>): drivers/usb/dwc2/gadget.c: In function 'dwc2_gadget_start_isoc_ddma': >> drivers/usb/dwc2/gadget.c:944:3: warning: this 'if' clause does not guard... [-Wmisleading-indentation] if (dwc2_hsotg_wait_bit_set(hsotg, GINTSTS, ^~ drivers/usb/dwc2/gadget.c:948:4: note: ...this statement, but the latter is misleadingly indented as if it were guarded by the 'if' dwc2_writel(DXEPINT_OUTTKNEPDIS, ^~~~~~~~~~~ drivers/usb/dwc2/gadget.c: In function 'dwc2_gadget_complete_isoc_request_ddma': drivers/usb/dwc2/gadget.c:2233:4: warning: this 'if' clause does not guard... [-Wmisleading-indentation] if (sumofpid != 0) ^~ drivers/usb/dwc2/gadget.c:2235:5: note: ...this statement, but the latter is misleadingly indented as if it were guarded by the 'if' break; ^~~~~ drivers/usb/dwc2/gadget.c:2237:4: warning: this 'if' clause does not guard... [-Wmisleading-indentation] if (sumofpid != 5) ^~ drivers/usb/dwc2/gadget.c:2239:5: note: ...this statement, but the latter is misleadingly indented as if it were guarded by the 'if' break; ^~~~~ drivers/usb/dwc2/gadget.c:2241:4: warning: this 'if' clause does not guard... [-Wmisleading-indentation] if (sumofpid != 7) ^~ drivers/usb/dwc2/gadget.c:2243:5: note: ...this statement, but the latter is misleadingly indented as if it were guarded by the 'if' break; ^~~~~ vim +/if +944 drivers/usb/dwc2/gadget.c 887 888 /* 889 * dwc2_gadget_start_isoc_ddma - start isochronous transfer in DDMA 890 * @hs_ep: The isochronous endpoint. 891 * 892 * Prepare descriptor chain for isochronous endpoints. Afterwards 893 * write DMA address to HW and enable the endpoint. 894 */ 895 static void dwc2_gadget_start_isoc_ddma(struct dwc2_hsotg_ep *hs_ep) 896 { 897 struct dwc2_hsotg *hsotg = hs_ep->parent; 898 struct dwc2_hsotg_req *hs_req, *treq; 899 int index = hs_ep->index; 900 int ret; 901 u32 dma_reg; 902 u32 depctl; 903 u32 ctrl; 904 struct dwc2_dma_desc *desc; 905 int dpi; 906 907 if (list_empty(&hs_ep->queue)) { 908 hs_ep->target_frame = TARGET_FRAME_INITIAL; 909 dev_dbg(hsotg->dev, "%s: No requests in queue\n", __func__); 910 return; 911 } 912 913 /* Descriptor count per interval (dpi): for IN set to 1, for OUT 914 * set to mult, i.e. 1 descritor per each packet in frame 915 */ 916 dpi = 1; 917 if (!hs_ep->dir_in) 918 dpi = hs_ep->mc; 919 920 /* Initialize descriptor chain by Host Busy status */ 921 for (ret = 0; ret < dpi * MAX_DMA_DESC_NUM_GENERIC; ret++) { 922 desc = &hs_ep->desc_list[ret]; 923 desc->status = 0; 924 desc->status |= (DEV_DMA_BUFF_STS_HBUSY 925 << DEV_DMA_BUFF_STS_SHIFT); 926 } 927 928 hs_ep->next_desc = 0; 929 list_for_each_entry_safe(hs_req, treq, &hs_ep->queue, queue) { 930 ret = dwc2_gadget_fill_isoc_desc(hs_ep, hs_req->req.dma, 931 hs_req->req.length); 932 if (ret) 933 break; 934 } 935 936 depctl = hs_ep->dir_in ? DIEPCTL(index) : DOEPCTL(index); 937 dma_reg = hs_ep->dir_in ? DIEPDMA(index) : DOEPDMA(index); 938 939 /* write descriptor chain address to control register */ 940 dwc2_writel(hs_ep->desc_list_dma, hsotg->regs + dma_reg); 941 942 /* Wait for EOPF interrupt for current (u)frame */ 943 if (dpi > 1) { > 944 if (dwc2_hsotg_wait_bit_set(hsotg, GINTSTS, 945 GINTSTS_EOPF, 100)) 946 dev_warn(hsotg->dev, 947 "%s: timeout GINTSTS.EOPF\n", __func__); 948 dwc2_writel(DXEPINT_OUTTKNEPDIS, 949 hsotg->regs + DOEPINT(hs_ep->index)); 950 } 951 952 ctrl = dwc2_readl(hsotg->regs + depctl); 953 ctrl |= DXEPCTL_EPENA | DXEPCTL_CNAK; 954 dwc2_writel(ctrl, hsotg->regs + depctl); 955 } 956 --- 0-DAY kernel test infrastructure Open Source Technology Center https://lists.01.org/pipermail/kbuild-all Intel Corporation
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