Hi Michael, kernel test robot noticed the following build warnings: [auto build test WARNING on usb/usb-linus] [also build test WARNING on linus/master v6.11-rc5] [cannot apply to usb/usb-testing usb/usb-next ericvh-v9fs/for-next next-20240830] [If your patch is applied to the wrong git tree, kindly drop us a note. And when submitting patch, we suggest to use '--base' as documented in https://git-scm.com/docs/git-format-patch#_base_tree_information] url: https://github.com/intel-lab-lkp/linux/commits/Michael-Grzeschik/net-9p-usbg-Add-new-usb-gadget-function-transport/20240827-064810 base: https://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb.git usb-linus patch link: https://lore.kernel.org/r/20240116-ml-topic-u9p-v10-2-a85fdeac2c52%40pengutronix.de patch subject: [PATCH v10 2/3] net/9p/usbg: Add new usb gadget function transport config: i386-allyesconfig (https://download.01.org/0day-ci/archive/20240830/202408302200.rlcB6d6K-lkp@xxxxxxxxx/config) compiler: gcc-12 (Debian 12.2.0-14) 12.2.0 reproduce (this is a W=1 build): (https://download.01.org/0day-ci/archive/20240830/202408302200.rlcB6d6K-lkp@xxxxxxxxx/reproduce) If you fix the issue in a separate patch/commit (i.e. not just a new version of the same patch/commit), kindly add following tags | Reported-by: kernel test robot <lkp@xxxxxxxxx> | Closes: https://lore.kernel.org/oe-kbuild-all/202408302200.rlcB6d6K-lkp@xxxxxxxxx/ All warnings (new ones prefixed by >>): net/9p/trans_usbg.c: In function 'p9_usbg_create': >> net/9p/trans_usbg.c:373:30: warning: variable 'f' set but not used [-Wunused-but-set-variable] 373 | struct usb_function *f; | ^ vim +/f +373 net/9p/trans_usbg.c 368 369 static int p9_usbg_create(struct p9_client *client, const char *devname, char *args) 370 { 371 struct f_usb9pfs_dev *dev; 372 struct f_usb9pfs *usb9pfs; > 373 struct usb_function *f; 374 int ret = -ENOENT; 375 int found = 0; 376 377 if (!devname) 378 return -EINVAL; 379 380 guard(mutex)(&usb9pfs_lock); 381 382 list_for_each_entry(dev, &usbg_instance_list, usb9pfs_instance) { 383 if (!strncmp(devname, dev->tag, strlen(devname))) { 384 if (!dev->inuse) { 385 dev->inuse = true; 386 found = 1; 387 break; 388 } 389 ret = -EBUSY; 390 break; 391 } 392 } 393 394 if (!found) { 395 pr_err("no channels available for device %s\n", devname); 396 return ret; 397 } 398 399 usb9pfs = dev->usb9pfs; 400 if (!usb9pfs) 401 return -EINVAL; 402 403 f = &usb9pfs->function; 404 405 client->trans = (void *)usb9pfs; 406 if (!usb9pfs->in_req) 407 client->status = Disconnected; 408 else 409 client->status = Connected; 410 usb9pfs->client = client; 411 412 client->trans_mod->maxsize = usb9pfs->buflen; 413 414 complete(&usb9pfs->received); 415 416 return 0; 417 } 418 -- 0-DAY CI Kernel Test Service https://github.com/intel/lkp-tests/wiki
