tree: https://git.kernel.org/pub/scm/linux/kernel/git/tiwai/sound.git test/usb-hacks head: 1f19fce1baf5f21347d1c9697ab9d48a5e25301f commit: c95d75571aefae9a8c06940486cf066a893aceb3 [31/48] ALSA: usb-audio: Create endpoint objects at parsing phase config: c6x-randconfig-s031-20201113 (attached as .config) compiler: c6x-elf-gcc (GCC) 9.3.0 reproduce: wget https://raw.githubusercontent.com/intel/lkp-tests/master/sbin/make.cross -O ~/bin/make.cross chmod +x ~/bin/make.cross # apt-get install sparse # sparse version: v0.6.3-107-gaf3512a6-dirty # https://git.kernel.org/pub/scm/linux/kernel/git/tiwai/sound.git/commit/?id=c... git remote add sound https://git.kernel.org/pub/scm/linux/kernel/git/tiwai/sound.git git fetch --no-tags sound test/usb-hacks git checkout c95d75571aefae9a8c06940486cf066a893aceb3 # save the attached .config to linux build tree COMPILER_INSTALL_PATH=$HOME/0day COMPILER=gcc-9.3.0 make.cross C=1 CF='-fdiagnostic-prefix -D__CHECK_ENDIAN__' ARCH=c6x

If you fix the issue, kindly add following tag as appropriate Reported-by: kernel test robot lkp@intel.com

"sparse warnings: (new ones prefixed by >>)"

...

sound/usb/endpoint.c:504:33: sparse: sparse: incorrect type in assignment (different base types) @@ expected unsigned int syncmaxsize @@ got restricted __le16 [usertype] wMaxPacketSize @@ sound/usb/endpoint.c:504:33: sparse: expected unsigned int syncmaxsize sound/usb/endpoint.c:504:33: sparse: got restricted __le16 [usertype] wMaxPacketSize

vim +504 sound/usb/endpoint.c

458 459 #define ep_type_name(type) \ 460 (type == SND_USB_ENDPOINT_TYPE_DATA ? "data" : "sync") 461 462 static int 463 add_endpoint(struct snd_usb_audio *chip, int ep_num, int type, 464 struct usb_endpoint_descriptor *desc) 465 { 466 struct snd_usb_endpoint *ep; 467 bool is_playback; 468 469 ep = snd_usb_get_endpoint(chip, ep_num); 470 if (ep) 471 return 0; 472 473 usb_audio_dbg(chip, "Creating new %s endpoint #%x\n", 474 ep_type_name(type), 475 ep_num); 476 ep = kzalloc(sizeof(*ep), GFP_KERNEL); 477 if (!ep) 478 return -ENOMEM; 479 480 ep->chip = chip; 481 spin_lock_init(&ep->lock); 482 ep->type = type; 483 ep->ep_num = ep_num; 484 INIT_LIST_HEAD(&ep->ready_playback_urbs); 485 486 is_playback = ((ep_num & USB_ENDPOINT_DIR_MASK) == USB_DIR_OUT); 487 ep_num &= USB_ENDPOINT_NUMBER_MASK; 488 if (is_playback) 489 ep->pipe = usb_sndisocpipe(chip->dev, ep_num); 490 else 491 ep->pipe = usb_rcvisocpipe(chip->dev, ep_num); 492 493 if (type == SND_USB_ENDPOINT_TYPE_SYNC) { 494 if (desc->bLength >= USB_DT_ENDPOINT_AUDIO_SIZE && 495 desc->bRefresh >= 1 && desc->bRefresh <= 9) 496 ep->syncinterval = desc->bRefresh; 497 else if (snd_usb_get_speed(chip->dev) == USB_SPEED_FULL) 498 ep->syncinterval = 1; 499 else if (desc->bInterval >= 1 && desc->bInterval <= 16) 500 ep->syncinterval = desc->bInterval - 1; 501 else 502 ep->syncinterval = 3; 503

504 ep->syncmaxsize = desc->wMaxPacketSize;

505 } 506 507 list_add_tail(&ep->list, &chip->ep_list); 508 return 0; 509 } 510

--- 0-DAY CI Kernel Test Service, Intel Corporation https://lists.01.org/hyperkitty/list/kbuild-all@lists.01.org