Hi James, kernel test robot noticed the following build warnings: [auto build test WARNING on dtor-input/next] [also build test WARNING on dtor-input/for-linus hid/for-next linus/master v6.6-rc7 next-20231023] [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/James-Hilliard/Input-cyttsp5-improve-error-handling-and-remove-regmap/20231023-165327 base: https://git.kernel.org/pub/scm/linux/kernel/git/dtor/input.git next patch link: https://lore.kernel.org/r/20231023085234.105572-1-james.hilliard1%40gmail.com patch subject: [PATCH] Input: cyttsp5 - improve error handling and remove regmap config: m68k-allyesconfig (https://download.01.org/0day-ci/archive/20231023/202310231838.JHHtGKmB-lkp@xxxxxxxxx/config) compiler: m68k-linux-gcc (GCC) 13.2.0 reproduce (this is a W=1 build): (https://download.01.org/0day-ci/archive/20231023/202310231838.JHHtGKmB-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/202310231838.JHHtGKmB-lkp@xxxxxxxxx/ All warnings (new ones prefixed by >>): drivers/input/touchscreen/cyttsp5.c: In function 'cyttsp5_get_hid_descriptor': >> drivers/input/touchscreen/cyttsp5.c:684:22: warning: unused variable 'reg' [-Wunused-variable] 684 | unsigned int reg = HID_DESC_REG; | ^~~ vim +/reg +684 drivers/input/touchscreen/cyttsp5.c 677 678 static int cyttsp5_get_hid_descriptor(struct cyttsp5 *ts, 679 struct cyttsp5_hid_desc *desc) 680 { 681 struct device *dev = ts->dev; 682 u8 cmd[2] = { 0 }; 683 int rc; > 684 unsigned int reg = HID_DESC_REG; 685 686 put_unaligned_le16(HID_DESC_REG, cmd); 687 688 rc = cyttsp5_write(ts, HID_DESC_REG, cmd, 2); 689 if (rc) { 690 dev_err(dev, "Failed to get HID descriptor, rc=%d\n", rc); 691 return rc; 692 } 693 694 rc = wait_for_completion_interruptible_timeout(&ts->cmd_done, 695 msecs_to_jiffies(CY_HID_GET_HID_DESCRIPTOR_TIMEOUT_MS)); 696 if (rc <= 0) { 697 dev_err(ts->dev, "HID get descriptor timed out\n"); 698 rc = -ETIMEDOUT; 699 return rc; 700 } 701 702 memcpy(desc, ts->response_buf, sizeof(*desc)); 703 704 /* Check HID descriptor length and version */ 705 if (le16_to_cpu(desc->hid_desc_len) != sizeof(*desc) || 706 le16_to_cpu(desc->bcd_version) != HID_VERSION) { 707 dev_err(dev, "Unsupported HID version\n"); 708 return -ENODEV; 709 } 710 711 return 0; 712 } 713 -- 0-DAY CI Kernel Test Service https://github.com/intel/lkp-tests/wiki
