tree: https://git.kernel.org/pub/scm/linux/kernel/git/tiwai/sound.git topic/midi20 head: 77700b81bd0e47d89d50eb4b3f2f323492f79998 commit: ff49d1df79aef7580fe3ac99d17c3f886655d080 [9/40] ALSA: usb-audio: USB MIDI 2.0 UMP support config: microblaze-randconfig-s032-20230526 (https://download.01.org/0day-ci/archive/20230527/202305270534.odwHL9F0-lkp@i...) compiler: microblaze-linux-gcc (GCC) 12.1.0 reproduce: mkdir -p ~/bin 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: v0.6.4-39-gce1a6720-dirty # https://git.kernel.org/pub/scm/linux/kernel/git/tiwai/sound.git/commit/?id=f... git remote add tiwai-sound https://git.kernel.org/pub/scm/linux/kernel/git/tiwai/sound.git git fetch --no-tags tiwai-sound topic/midi20 git checkout ff49d1df79aef7580fe3ac99d17c3f886655d080 # save the config file mkdir build_dir && cp config build_dir/.config COMPILER_INSTALL_PATH=$HOME/0day COMPILER=gcc-12.1.0 ~/bin/make.cross C=1 CF='-fdiagnostic-prefix -D__CHECK_ENDIAN__' O=build_dir ARCH=microblaze olddefconfig COMPILER_INSTALL_PATH=$HOME/0day COMPILER=gcc-12.1.0 ~/bin/make.cross C=1 CF='-fdiagnostic-prefix -D__CHECK_ENDIAN__' O=build_dir ARCH=microblaze SHELL=/bin/bash sound/usb/

If you fix the issue, kindly add following tag where applicable | Reported-by: kernel test robot lkp@intel.com | Closes: https://lore.kernel.org/oe-kbuild-all/202305270534.odwHL9F0-lkp@intel.com/

sparse warnings: (new ones prefixed by >>)

...

sound/usb/midi2.c:548:16: sparse: sparse: cast to restricted __le16 sound/usb/midi2.c:548:16: sparse: sparse: cast to restricted __le16 sound/usb/midi2.c:548:16: sparse: sparse: cast to restricted __le16 sound/usb/midi2.c:548:16: sparse: sparse: cast to restricted __le16

vim +548 sound/usb/midi2.c

530 531 /* get the full group terminal block descriptors and return the size */ 532 static int get_group_terminal_block_descs(struct snd_usb_midi2_interface *umidi) 533 { 534 struct usb_host_interface *hostif = umidi->hostif; 535 struct usb_device *dev = umidi->chip->dev; 536 struct usb_ms20_gr_trm_block_header_descriptor header = { 0 }; 537 unsigned char *data; 538 int err, size; 539 540 err = snd_usb_ctl_msg(dev, usb_rcvctrlpipe(dev, 0), 541 USB_REQ_GET_DESCRIPTOR, 542 USB_RECIP_INTERFACE | USB_TYPE_STANDARD | USB_DIR_IN, 543 USB_DT_CS_GR_TRM_BLOCK << 8 | hostif->desc.bAlternateSetting, 544 hostif->desc.bInterfaceNumber, 545 &header, sizeof(header)); 546 if (err < 0) 547 return err;

548 size = __le16_to_cpu(header.wTotalLength);

549 if (!size) { 550 dev_err(&dev->dev, "Failed to get GTB descriptors for %d:%d\n", 551 hostif->desc.bInterfaceNumber, hostif->desc.bAlternateSetting); 552 return -EINVAL; 553 } 554 555 data = kzalloc(size, GFP_KERNEL); 556 if (!data) 557 return -ENOMEM; 558 559 err = snd_usb_ctl_msg(dev, usb_rcvctrlpipe(dev, 0), 560 USB_REQ_GET_DESCRIPTOR, 561 USB_RECIP_INTERFACE | USB_TYPE_STANDARD | USB_DIR_IN, 562 USB_DT_CS_GR_TRM_BLOCK << 8 | hostif->desc.bAlternateSetting, 563 hostif->desc.bInterfaceNumber, data, size); 564 if (err < 0) { 565 kfree(data); 566 return err; 567 } 568 569 umidi->blk_descs = data; 570 umidi->blk_desc_size = size; 571 return 0; 572 } 573