Hi Marijn, Thank you for the patch! Perhaps something to improve: [auto build test WARNING on lee-backlight/for-backlight-next] [also build test WARNING on robh/for-next v5.16-rc1 next-20211115] [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/Marijn-Suijten/backlight-qcom-wl... base: https://git.kernel.org/pub/scm/linux/kernel/git/lee/backlight.git for-backlight-next config: x86_64-randconfig-s022-20211115 (attached as .config) compiler: gcc-9 (Debian 9.3.0-22) 9.3.0 reproduce: # apt-get install sparse # sparse version: v0.6.4-dirty # https://github.com/0day-ci/linux/commit/94425d366b39b6eea4acc5623f8a66046... git remote add linux-review https://github.com/0day-ci/linux git fetch --no-tags linux-review Marijn-Suijten/backlight-qcom-wled-fix-and-solidify-handling-of-enabled-strings/20211112-083005 git checkout 94425d366b39b6eea4acc5623f8a66046eb62bdb # save the attached .config to linux build tree make W=1 C=1 CF='-fdiagnostic-prefix -D__CHECK_ENDIAN__' ARCH=x86_64 If you fix the issue, kindly add following tag as appropriate Reported-by: kernel test robot <lkp(a)intel.com&gt; sparse warnings: (new ones prefixed by >>) drivers/video/backlight/qcom-wled.c:236:11: sparse: expected unsigned short [usertype] v drivers/video/backlight/qcom-wled.c:236:11: sparse: got restricted __le16 [usertype] drivers/video/backlight/qcom-wled.c:258:11: sparse: sparse: incorrect type in assignment (different base types) @@ expected unsigned short [usertype] v @@ got restricted __le16 [usertype] @@ drivers/video/backlight/qcom-wled.c:258:11: sparse: expected unsigned short [usertype] v drivers/video/backlight/qcom-wled.c:258:11: sparse: got restricted __le16 [usertype] drivers/video/backlight/qcom-wled.c:280:11: sparse: sparse: incorrect type in assignment (different base types) @@ expected unsigned short [usertype] v @@ got restricted __le16 [usertype] @@ drivers/video/backlight/qcom-wled.c:280:11: sparse: expected unsigned short [usertype] v drivers/video/backlight/qcom-wled.c:280:11: sparse: got restricted __le16 [usertype] vim +236 drivers/video/backlight/qcom-wled.c 230 231 static int wled3_set_brightness(struct wled *wled, u16 brightness) 232 { 233 int rc, i; 234 u16 v; 235 237 238 for (i = 0; i < wled->cfg.num_strings; ++i) { 239 rc = regmap_bulk_write(wled->regmap, wled->ctrl_addr + 240 WLED3_SINK_REG_BRIGHT(i), 241 &v, sizeof(v)); 242 if (rc < 0) 243 return rc; 244 } 245 246 return 0; 247 } 248 --- 0-DAY CI Kernel Test Service, Intel Corporation https://lists.01.org/hyperkitty/list/kbuild-all@lists.01.org