linux-kernel - Re: [PATCH] media: uvcvideo:Create input device for all uvc devices with status endpoints.

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Message-ID: <202411041600.0u4Yj3kT-lkp@intel.com>
Date: Mon, 4 Nov 2024 16:43:37 +0800
From: kernel test robot <lkp@...el.com>
To: chenchangcheng <ccc194101@....com>, laurent.pinchart@...asonboard.com,
	mchehab@...nel.org
Cc: llvm@...ts.linux.dev, oe-kbuild-all@...ts.linux.dev,
	linux-media@...r.kernel.org, linux-kernel@...r.kernel.org,
	stable@...r.kernel.org, chenchangcheng <ccc194101@....com>
Subject: Re: [PATCH] media: uvcvideo:Create input device for all uvc devices
 with status endpoints.

Hi chenchangcheng,

kernel test robot noticed the following build errors:

[auto build test ERROR on linuxtv-media-stage/master]
[also build test ERROR on linus/master media-tree/master v6.12-rc6 next-20241101]
[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/chenchangcheng/media-uvcvideo-Create-input-device-for-all-uvc-devices-with-status-endpoints/20241104-104225
base:   https://git.linuxtv.org/media_stage.git master
patch link:    https://lore.kernel.org/r/20241104023947.826707-1-ccc194101%40163.com
patch subject: [PATCH] media: uvcvideo:Create input device for all uvc devices with status endpoints.
config: i386-buildonly-randconfig-003-20241104 (https://download.01.org/0day-ci/archive/20241104/202411041600.0u4Yj3kT-lkp@intel.com/config)
compiler: clang version 19.1.3 (https://github.com/llvm/llvm-project ab51eccf88f5321e7c60591c5546b254b6afab99)
reproduce (this is a W=1 build): (https://download.01.org/0day-ci/archive/20241104/202411041600.0u4Yj3kT-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 <lkp@...el.com>
| Closes: https://lore.kernel.org/oe-kbuild-all/202411041600.0u4Yj3kT-lkp@intel.com/

All errors (new ones prefixed by >>):

   In file included from drivers/media/usb/uvc/uvc_status.c:16:
   In file included from drivers/media/usb/uvc/uvcvideo.h:17:
   In file included from include/media/media-device.h:16:
   In file included from include/linux/pci.h:1650:
   In file included from include/linux/dmapool.h:14:
   In file included from include/linux/scatterlist.h:8:
   In file included from include/linux/mm.h:2213:
   include/linux/vmstat.h:518:36: warning: arithmetic between different enumeration types ('enum node_stat_item' and 'enum lru_list') [-Wenum-enum-conversion]
     518 |         return node_stat_name(NR_LRU_BASE + lru) + 3; // skip "nr_"
         |                               ~~~~~~~~~~~ ^ ~~~
>> drivers/media/usb/uvc/uvc_status.c:110:7: error: call to undeclared function 'uvc_input_has_button'; ISO C99 and later do not support implicit function declarations [-Wimplicit-function-declaration]
     110 |                 if (uvc_input_has_button(dev)) {
         |                     ^
   1 warning and 1 error generated.

Kconfig warnings: (for reference only)
   WARNING: unmet direct dependencies detected for MODVERSIONS
   Depends on [n]: MODULES [=y] && !COMPILE_TEST [=y]
   Selected by [y]:
   - RANDSTRUCT_FULL [=y] && (CC_HAS_RANDSTRUCT [=y] || GCC_PLUGINS [=n]) && MODULES [=y]

vim +/uvc_input_has_button +110 drivers/media/usb/uvc/uvc_status.c

    93	
    94	/* --------------------------------------------------------------------------
    95	 * Status interrupt endpoint
    96	 */
    97	static void uvc_event_streaming(struct uvc_device *dev,
    98					struct uvc_status *status, int len)
    99	{
   100		if (len <= offsetof(struct uvc_status, bEvent)) {
   101			uvc_dbg(dev, STATUS,
   102				"Invalid streaming status event received\n");
   103			return;
   104		}
   105	
   106		if (status->bEvent == 0) {
   107			if (len <= offsetof(struct uvc_status, streaming))
   108				return;
   109	
 > 110			if (uvc_input_has_button(dev)) {
   111				uvc_dbg(dev, STATUS, "Button (intf %u) %s len %d\n",
   112					status->bOriginator,
   113					status->streaming.button ? "pressed" : "released", len);
   114				uvc_input_report_key(dev, KEY_CAMERA, status->streaming.button);
   115			}
   116		} else {
   117			uvc_dbg(dev, STATUS, "Stream %u error event %02x len %d\n",
   118				status->bOriginator, status->bEvent, len);
   119		}
   120	}
   121	

-- 
0-DAY CI Kernel Test Service
https://github.com/intel/lkp-tests/wiki