Hi Jerry, Thank you for the patch! Yet something to improve:
[auto build test ERROR on balbi-usb/next] [also build test ERROR on v4.16 next-20180409] [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/Jerry-Zhang/usb-gadget-f_midi-Add-configfs-attrs-for-card-and-device/20180410-061518 base: https://git.kernel.org/pub/scm/linux/kernel/git/balbi/usb.git next config: x86_64-randconfig-x011-201814 (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=x86_64 All errors (new ones prefixed by >>): drivers/usb/gadget/function/f_midi.c: In function 'f_midi_opts_card_show': >> drivers/usb/gadget/function/f_midi.c:1188:22: error: 'struct >> usb_function_instance' has no member named 'f'; did you mean 'fd'? if (opts->func_inst.f) { ^ fd drivers/usb/gadget/function/f_midi.c:1189:39: error: 'struct usb_function_instance' has no member named 'f'; did you mean 'fd'? midi = func_to_midi(opts->func_inst.f); ^ fd drivers/usb/gadget/function/f_midi.c: In function 'f_midi_opts_device_show': drivers/usb/gadget/function/f_midi.c:1206:22: error: 'struct usb_function_instance' has no member named 'f'; did you mean 'fd'? if (opts->func_inst.f) { ^ fd drivers/usb/gadget/function/f_midi.c:1207:39: error: 'struct usb_function_instance' has no member named 'f'; did you mean 'fd'? midi = func_to_midi(opts->func_inst.f); ^ fd vim +1188 drivers/usb/gadget/function/f_midi.c 1181 1182 static ssize_t f_midi_opts_card_show(struct config_item *item, char *page) 1183 { 1184 struct f_midi_opts *opts = to_f_midi_opts(item); 1185 int card = -1; 1186 struct f_midi *midi; 1187 > 1188 if (opts->func_inst.f) { 1189 midi = func_to_midi(opts->func_inst.f); 1190 if (midi->rmidi && midi->rmidi->card) { 1191 card = midi->rmidi->card->number; 1192 } 1193 } 1194 1195 return sprintf(page, "%d\n", card); 1196 } 1197 --- 0-DAY kernel test infrastructure Open Source Technology Center https://lists.01.org/pipermail/kbuild-all Intel Corporation
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