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d="scan'208";a="3753528" Received: from lkp-server01.sh.intel.com (HELO 0caa9d2d175c) ([10.239.97.150]) by fmviesa007.fm.intel.com with ESMTP; 22 Oct 2026 09:56:32 -0700 Received: from kbuild by 0caa9d2d175c with local (Exim 4.98.2) (envelope-from ) id 1xJw5e-00000000RNu-1XeV; Thu, 22 Oct 2026 16:56:30 +0000 Date: Fri, 23 Oct 2026 00:55:39 +0800 From: kernel test robot To: syafiqnizam25 Cc: oe-kbuild-all@lists.linux.dev, "sys_oak" Subject: [intel-lts:6.18/linux 52/52] drivers/media/i2c/d4xx.c:4748:66: warning: ' Message-ID: <202610230037.KDsJDmWX-lkp@intel.com> User-Agent: s-nail v14.9.25 X-Mailing-List: oe-kbuild-all@lists.linux.dev List-Id: List-Post: List-Help: List-Subscribe: List-Unsubscribe: List-Owner: Precedence: list Hi syafiqnizam25, FYI, the error/warning still remains. tree: https://github.com/intel/linux-intel-lts.git 6.18/linux head: 6f60c9f6344f04a699abb69dd35bc294f6c306d8 commit: 38131e1f862524e81f78a96ae9daf7d22519ef25 [52/52] media: i2c: add d4xx config: powerpc-allmodconfig (https://download.01.org/0day-ci/archive/20261023/202610230037.KDsJDmWX-lkp@intel.com/config) compiler: powerpc64-linux-gcc (GCC) 16.2.0 reproduce (this is a W=1 build): (https://download.01.org/0day-ci/archive/20261023/202610230037.KDsJDmWX-lkp@intel.com/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 | Closes: https://lore.kernel.org/oe-kbuild-all/202610230037.KDsJDmWX-lkp@intel.com/ All warnings (new ones prefixed by >>): 2718 | struct ds5 *ds5 = container_of(subdev, struct ds5, mux.sd.subdev); | ^~~ drivers/media/i2c/d4xx.c: In function 'ds5_get_fw_info': drivers/media/i2c/d4xx.c:3626:13: warning: unused variable 'retry' [-Wunused-variable] 3626 | int retry = 5; | ^~~~~ drivers/media/i2c/d4xx.c:3625:13: warning: unused variable 'ret' [-Wunused-variable] 3625 | int ret; | ^~~ drivers/media/i2c/d4xx.c: At top level: drivers/media/i2c/d4xx.c:4058:17: warning: initialized field overwritten [-Woverride-init] 4058 | .step = 1, | ^ drivers/media/i2c/d4xx.c:4058:17: note: (near initialization for 'ds5_ctrl_erb.step') drivers/media/i2c/d4xx.c:4072:17: warning: initialized field overwritten [-Woverride-init] 4072 | .step = 1, | ^ drivers/media/i2c/d4xx.c:4072:17: note: (near initialization for 'ds5_ctrl_ewb.step') drivers/media/i2c/d4xx.c:4086:17: warning: initialized field overwritten [-Woverride-init] 4086 | .step = 1, | ^ drivers/media/i2c/d4xx.c:4086:17: note: (near initialization for 'ds5_ctrl_hwmc.step') drivers/media/i2c/d4xx.c: In function 'ds5_mux_init': drivers/media/i2c/d4xx.c:4459:14: warning: unused variable 'suffix' [-Wunused-variable] 4459 | char suffix[5]; | ^~~~~~ drivers/media/i2c/d4xx.c: In function 'ds5_dfu_device_release': drivers/media/i2c/d4xx.c:4877:22: warning: unused variable 'retry' [-Wunused-variable] 4877 | int ret = 0, retry = 10; | ^~~~~ drivers/media/i2c/d4xx.c: In function 'ds5_chrdev_init': drivers/media/i2c/d4xx.c:4917:14: warning: unused variable 'suffix' [-Wunused-variable] 4917 | char suffix[5]; | ^~~~~~ drivers/media/i2c/d4xx.c: In function 'ds5_probe': drivers/media/i2c/d4xx.c:5256:40: warning: too many arguments for format [-Wformat-extra-args] 5256 | dev_info(&client->dev, "D4XX recovery state\n", __func__); | ^~~~~~~~~~~~~~~~~~~~~~~ include/linux/dev_printk.h:110:30: note: in definition of macro 'dev_printk_index_wrap' 110 | _p_func(dev, fmt, ##__VA_ARGS__); \ | ^~~ include/linux/dev_printk.h:160:58: note: in expansion of macro 'dev_fmt' 160 | dev_printk_index_wrap(_dev_info, KERN_INFO, dev, dev_fmt(fmt), ##__VA_ARGS__) | ^~~~~~~ drivers/media/i2c/d4xx.c:5256:17: note: in expansion of macro 'dev_info' 5256 | dev_info(&client->dev, "D4XX recovery state\n", __func__); | ^~~~~~~~ drivers/media/i2c/d4xx.c:5287:13: warning: unused variable 'err' [-Wunused-variable] 5287 | int err = sysfs_create_group(&ds5->client->dev.kobj, &ds5_attr_group); | ^~~ drivers/media/i2c/d4xx.c:5192:36: warning: unused variable 'reg_list' [-Wunused-variable] 5192 | const struct ds5_reg_list *reg_list; | ^~~~~~~~ drivers/media/i2c/d4xx.c:5190:29: warning: unused variable 'sd' [-Wunused-variable] 5190 | struct v4l2_subdev *sd; | ^~ drivers/media/i2c/d4xx.c: At top level: drivers/media/i2c/d4xx.c:5150:13: warning: 'ds5_update_pad_format' defined but not used [-Wunused-function] 5150 | static void ds5_update_pad_format(const struct ds5_resolution *resolutions, | ^~~~~~~~~~~~~~~~~~~~~ drivers/media/i2c/d4xx.c:2352:12: warning: 'ds5_mux_set_frame_interval' defined but not used [-Wunused-function] 2352 | static int ds5_mux_set_frame_interval(struct v4l2_subdev *sd, | ^~~~~~~~~~~~~~~~~~~~~~~~~~ drivers/media/i2c/d4xx.c:2325:12: warning: 'ds5_mux_get_frame_interval' defined but not used [-Wunused-function] 2325 | static int ds5_mux_get_frame_interval(struct v4l2_subdev *sd, | ^~~~~~~~~~~~~~~~~~~~~~~~~~ drivers/media/i2c/d4xx.c:2157:21: warning: 'ds5_mbus_code_to_mipi' defined but not used [-Wunused-function] 2157 | static unsigned int ds5_mbus_code_to_mipi(u32 code) | ^~~~~~~~~~~~~~~~~~~~~ drivers/media/i2c/d4xx.c:1915:12: warning: 'ds5_mux_enum_frame_interval' defined but not used [-Wunused-function] 1915 | static int ds5_mux_enum_frame_interval(struct v4l2_subdev *sd, | ^~~~~~~~~~~~~~~~~~~~~~~~~~~ drivers/media/i2c/d4xx.c:1855:12: warning: 'ds5_mux_enum_frame_size' defined but not used [-Wunused-function] 1855 | static int ds5_mux_enum_frame_size(struct v4l2_subdev *sd, | ^~~~~~~~~~~~~~~~~~~~~~~ drivers/media/i2c/d4xx.c:1564:12: warning: 'ds5_mux_set_stream' defined but not used [-Wunused-function] 1564 | static int ds5_mux_set_stream(struct v4l2_subdev *sd, int on) | ^~~~~~~~~~~~~~~~~~ drivers/media/i2c/d4xx.c:668:36: warning: 'ds5_size_w10' defined but not used [-Wunused-const-variable=] 668 | static const struct ds5_resolution ds5_size_w10 = { | ^~~~~~~~~~~~ drivers/media/i2c/d4xx.c:497:34: warning: 'ds5_1280_720_30fps_reg_list' defined but not used [-Wunused-const-variable=] 497 | static const struct ds5_reg_list ds5_1280_720_30fps_reg_list = { | ^~~~~~~~~~~~~~~~~~~~~~~~~~~ drivers/media/i2c/d4xx.c:492:34: warning: 'ds5_1920_1080_30fps_reg_list' defined but not used [-Wunused-const-variable=] 492 | static const struct ds5_reg_list ds5_1920_1080_30fps_reg_list = { | ^~~~~~~~~~~~~~~~~~~~~~~~~~~~ drivers/media/i2c/d4xx.c:487:34: warning: 'ds5_1920_1536_30fps_reg_list' defined but not used [-Wunused-const-variable=] 487 | static const struct ds5_reg_list ds5_1920_1536_30fps_reg_list = { | ^~~~~~~~~~~~~~~~~~~~~~~~~~~~ drivers/media/i2c/d4xx.c:482:34: warning: 'ds5_framesync_reg_list' defined but not used [-Wunused-const-variable=] 482 | static const struct ds5_reg_list ds5_framesync_reg_list = { | ^~~~~~~~~~~~~~~~~~~~~~ drivers/media/i2c/d4xx.c:477:34: warning: 'ds5_init_reg_list' defined but not used [-Wunused-const-variable=] 477 | static const struct ds5_reg_list ds5_init_reg_list = { | ^~~~~~~~~~~~~~~~~ drivers/media/i2c/d4xx.c:448:18: warning: 'ds5_framerate_25' defined but not used [-Wunused-const-variable=] 448 | static const u16 ds5_framerate_25 = 25; | ^~~~~~~~~~~~~~~~ drivers/media/i2c/d4xx.c: In function 'ds5_dfu_device_read': >> drivers/media/i2c/d4xx.c:4748:66: warning: ' ' directive output may be truncated writing 1 byte into a region of size between 0 and 8 [-Wformat-truncation=] 4748 | snprintf(msg, sizeof(msg), "DFU info: \tver: %d.%d.%d.%d\n", | ^~ drivers/media/i2c/d4xx.c:4748:9: note: 'snprintf' output between 26 and 34 bytes into a destination of size 32 4748 | snprintf(msg, sizeof(msg), "DFU info: \tver: %d.%d.%d.%d\n", | ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ 4749 | (fw_ver >> 8) & 0xff, fw_ver & 0xff, | ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ 4750 | (fw_build >> 8) & 0xff, fw_build & 0xff); | ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ vim +4748 drivers/media/i2c/d4xx.c 9552247d675e3b2 Khai Wen, Ng 2026-01-06 4732 9552247d675e3b2 Khai Wen, Ng 2026-01-06 4733 /* When a process reads from our device, this gets called. */ 9552247d675e3b2 Khai Wen, Ng 2026-01-06 4734 static ssize_t ds5_dfu_device_read(struct file *flip, 9552247d675e3b2 Khai Wen, Ng 2026-01-06 4735 char __user *buffer, size_t len, loff_t *offset) 9552247d675e3b2 Khai Wen, Ng 2026-01-06 4736 { 9552247d675e3b2 Khai Wen, Ng 2026-01-06 4737 struct ds5 *state = flip->private_data; 9552247d675e3b2 Khai Wen, Ng 2026-01-06 4738 u16 fw_ver, fw_build; 9552247d675e3b2 Khai Wen, Ng 2026-01-06 4739 char msg[32]; 9552247d675e3b2 Khai Wen, Ng 2026-01-06 4740 int ret = 0; 9552247d675e3b2 Khai Wen, Ng 2026-01-06 4741 9552247d675e3b2 Khai Wen, Ng 2026-01-06 4742 if (mutex_lock_interruptible(&state->mutex)) 9552247d675e3b2 Khai Wen, Ng 2026-01-06 4743 return -ERESTARTSYS; 9552247d675e3b2 Khai Wen, Ng 2026-01-06 4744 9552247d675e3b2 Khai Wen, Ng 2026-01-06 4745 ret |= ds5_get_fw_info(state, &fw_ver, &fw_build); 9552247d675e3b2 Khai Wen, Ng 2026-01-06 4746 if (ret < 0) 9552247d675e3b2 Khai Wen, Ng 2026-01-06 4747 goto e_dfu_read_failed; 9552247d675e3b2 Khai Wen, Ng 2026-01-06 @4748 snprintf(msg, sizeof(msg), "DFU info: \tver: %d.%d.%d.%d\n", 9552247d675e3b2 Khai Wen, Ng 2026-01-06 4749 (fw_ver >> 8) & 0xff, fw_ver & 0xff, 9552247d675e3b2 Khai Wen, Ng 2026-01-06 4750 (fw_build >> 8) & 0xff, fw_build & 0xff); 9552247d675e3b2 Khai Wen, Ng 2026-01-06 4751 9552247d675e3b2 Khai Wen, Ng 2026-01-06 4752 if (copy_to_user(buffer, msg, strlen(msg))) 9552247d675e3b2 Khai Wen, Ng 2026-01-06 4753 ret = -EFAULT; 9552247d675e3b2 Khai Wen, Ng 2026-01-06 4754 else { 9552247d675e3b2 Khai Wen, Ng 2026-01-06 4755 state->dfu_dev.msg_write_once = ~state->dfu_dev.msg_write_once; 9552247d675e3b2 Khai Wen, Ng 2026-01-06 4756 ret = strlen(msg) & state->dfu_dev.msg_write_once; 9552247d675e3b2 Khai Wen, Ng 2026-01-06 4757 } 9552247d675e3b2 Khai Wen, Ng 2026-01-06 4758 9552247d675e3b2 Khai Wen, Ng 2026-01-06 4759 e_dfu_read_failed: 9552247d675e3b2 Khai Wen, Ng 2026-01-06 4760 mutex_unlock(&state->mutex); 9552247d675e3b2 Khai Wen, Ng 2026-01-06 4761 return ret; 9552247d675e3b2 Khai Wen, Ng 2026-01-06 4762 }; 9552247d675e3b2 Khai Wen, Ng 2026-01-06 4763 :::::: The code at line 4748 was first introduced by commit :::::: 9552247d675e3b2f6a968db946f6531505b8047c media: i2c: Add D4XX support and D4XX driver :::::: TO: Khai Wen, Ng :::::: CC: sys_oak -- 0-DAY CI Kernel Test Service https://github.com/intel/lkp-tests/wiki