Hi "Geoffrey, Thank you for the patch! Perhaps something to improve: [auto build test WARNING on v5.13-rc4] [also build test WARNING on next-20210604] [cannot apply to sound/for-next] [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] url: https://github.com/0day-ci/linux/commits/Geoffrey-D-Bennett/ALSA-usb-audio-scarlett2-Read-all-configuration-at-init-time/20210606-222037 base: 8124c8a6b35386f73523d27eacb71b5364a68c4c config: xtensa-randconfig-s032-20210607 (attached as .config) compiler: xtensa-linux-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: v0.6.3-341-g8af24329-dirty # https://github.com/0day-ci/linux/commit/4cd436ec424b3564c2dcf9b3b8fd83c8894051f1 git remote add linux-review https://github.com/0day-ci/linux git fetch --no-tags linux-review Geoffrey-D-Bennett/ALSA-usb-audio-scarlett2-Read-all-configuration-at-init-time/20210606-222037 git checkout 4cd436ec424b3564c2dcf9b3b8fd83c8894051f1 # 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__' W=1 ARCH=xtensa If you fix the issue, kindly add following tag as appropriate Reported-by: kernel test robot <lkp@xxxxxxxxx> sparse warnings: (new ones prefixed by >>) >> sound/usb/mixer_scarlett_gen2.c:809:21: sparse: sparse: incorrect type in assignment (different base types) @@ expected restricted __le16 [usertype] mix_num @@ got int mix_num @@ sound/usb/mixer_scarlett_gen2.c:809:21: sparse: expected restricted __le16 [usertype] mix_num sound/usb/mixer_scarlett_gen2.c:809:21: sparse: got int mix_num >> sound/usb/mixer_scarlett_gen2.c:810:19: sparse: sparse: incorrect type in assignment (different base types) @@ expected restricted __le16 [usertype] count @@ got int num_mixer_in @@ sound/usb/mixer_scarlett_gen2.c:810:19: sparse: expected restricted __le16 [usertype] count sound/usb/mixer_scarlett_gen2.c:810:19: sparse: got int num_mixer_in vim +809 sound/usb/mixer_scarlett_gen2.c 788 789 /* Send a USB message to get the volumes for all inputs of one mix 790 * and put the values into private->mix[] 791 */ 792 static int scarlett2_usb_get_mix(struct usb_mixer_interface *mixer, 793 int mix_num) 794 { 795 struct scarlett2_mixer_data *private = mixer->private_data; 796 const struct scarlett2_device_info *info = private->info; 797 798 int num_mixer_in = 799 info->ports[SCARLETT2_PORT_TYPE_MIX].num[SCARLETT2_PORT_OUT]; 800 int err, i, j, k; 801 802 struct { 803 __le16 mix_num; 804 __le16 count; 805 } __packed req; 806 807 __le16 data[SCARLETT2_INPUT_MIX_MAX]; 808 > 809 req.mix_num = mix_num; > 810 req.count = num_mixer_in; 811 812 err = scarlett2_usb(mixer, SCARLETT2_USB_GET_MIX, 813 &req, sizeof(req), 814 data, num_mixer_in * sizeof(u16)); 815 if (err < 0) 816 return err; 817 818 for (i = 0, j = mix_num * num_mixer_in; i < num_mixer_in; i++, j++) { 819 u16 mixer_value = le16_to_cpu(data[i]); 820 821 for (k = 0; k < SCARLETT2_MIXER_VALUE_COUNT; k++) 822 if (scarlett2_mixer_values[k] >= mixer_value) 823 break; 824 if (k == SCARLETT2_MIXER_VALUE_COUNT) 825 k = SCARLETT2_MIXER_MAX_VALUE; 826 private->mix[j] = k; 827 } 828 829 return 0; 830 } 831 --- 0-DAY CI Kernel Test Service, Intel Corporation https://lists.01.org/hyperkitty/list/kbuild-all@xxxxxxxxxxxx
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