Hi Ravi, kernel test robot noticed the following build errors: [auto build test ERROR on staging/staging-testing] url: https://github.com/intel-lab-lkp/linux/commits/Ravi-Kumar-kairi/staging-most-Remove-unused-mutex-from-most_video_dev/20250222-004322 base: staging/staging-testing patch link: https://lore.kernel.org/r/20250221163444.57492-2-kumarkairiravi%40gmail.com patch subject: [PATCH] staging: most: Remove unused mutex from most_video_dev config: hexagon-allyesconfig (https://download.01.org/0day-ci/archive/20250303/202503031448.eqB11EdG-lkp@xxxxxxxxx/config) compiler: clang version 18.1.8 (https://github.com/llvm/llvm-project 3b5b5c1ec4a3095ab096dd780e84d7ab81f3d7ff) reproduce (this is a W=1 build): (https://download.01.org/0day-ci/archive/20250303/202503031448.eqB11EdG-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/202503031448.eqB11EdG-lkp@xxxxxxxxx/ All errors (new ones prefixed by >>): >> drivers/staging/most/video/video.c:417:28: error: no member named 'lock' in 'struct most_video_dev' 417 | mdev->vdev->lock = &mdev->lock; | ~~~~ ^ drivers/staging/most/video/video.c:474:20: error: no member named 'lock' in 'struct most_video_dev' 474 | mutex_init(&mdev->lock); | ~~~~ ^ include/linux/mutex.h:64:16: note: expanded from macro 'mutex_init' 64 | __mutex_init((mutex), #mutex, &__key); \ | ^~~~~ 2 errors generated. vim +417 drivers/staging/most/video/video.c 3d31c0cb6c127b drivers/staging/most/aim-v4l2/video.c Christian Gromm 2015-07-24 402 1b10a0316e2d5e drivers/staging/most/video/video.c Christian Gromm 2017-11-21 403 static int comp_register_videodev(struct most_video_dev *mdev) 3d31c0cb6c127b drivers/staging/most/aim-v4l2/video.c Christian Gromm 2015-07-24 404 { 3d31c0cb6c127b drivers/staging/most/aim-v4l2/video.c Christian Gromm 2015-07-24 405 int ret; 3d31c0cb6c127b drivers/staging/most/aim-v4l2/video.c Christian Gromm 2015-07-24 406 3d31c0cb6c127b drivers/staging/most/aim-v4l2/video.c Christian Gromm 2015-07-24 407 init_waitqueue_head(&mdev->wait_data); 3d31c0cb6c127b drivers/staging/most/aim-v4l2/video.c Christian Gromm 2015-07-24 408 3d31c0cb6c127b drivers/staging/most/aim-v4l2/video.c Christian Gromm 2015-07-24 409 /* allocate and fill v4l2 video struct */ 3d31c0cb6c127b drivers/staging/most/aim-v4l2/video.c Christian Gromm 2015-07-24 410 mdev->vdev = video_device_alloc(); 3d31c0cb6c127b drivers/staging/most/aim-v4l2/video.c Christian Gromm 2015-07-24 411 if (!mdev->vdev) 3d31c0cb6c127b drivers/staging/most/aim-v4l2/video.c Christian Gromm 2015-07-24 412 return -ENOMEM; 3d31c0cb6c127b drivers/staging/most/aim-v4l2/video.c Christian Gromm 2015-07-24 413 3d31c0cb6c127b drivers/staging/most/aim-v4l2/video.c Christian Gromm 2015-07-24 414 /* Fill the video capture device struct */ 1b10a0316e2d5e drivers/staging/most/video/video.c Christian Gromm 2017-11-21 415 *mdev->vdev = comp_videodev_template; 3d31c0cb6c127b drivers/staging/most/aim-v4l2/video.c Christian Gromm 2015-07-24 416 mdev->vdev->v4l2_dev = &mdev->v4l2_dev; 3d31c0cb6c127b drivers/staging/most/aim-v4l2/video.c Christian Gromm 2015-07-24 @417 mdev->vdev->lock = &mdev->lock; 323977d5d33a8d drivers/staging/most/aim-v4l2/video.c Christian Gromm 2016-06-06 418 snprintf(mdev->vdev->name, sizeof(mdev->vdev->name), "MOST: %s", 323977d5d33a8d drivers/staging/most/aim-v4l2/video.c Christian Gromm 2016-06-06 419 mdev->v4l2_dev.name); 3d31c0cb6c127b drivers/staging/most/aim-v4l2/video.c Christian Gromm 2015-07-24 420 3d31c0cb6c127b drivers/staging/most/aim-v4l2/video.c Christian Gromm 2015-07-24 421 /* Register the v4l2 device */ 3d31c0cb6c127b drivers/staging/most/aim-v4l2/video.c Christian Gromm 2015-07-24 422 video_set_drvdata(mdev->vdev, mdev); e653614ee1832c drivers/staging/most/video/video.c Hans Verkuil 2020-02-03 423 ret = video_register_device(mdev->vdev, VFL_TYPE_VIDEO, -1); b23e8e51e6dc40 drivers/staging/most/aim-v4l2/video.c Christian Gromm 2016-06-06 424 if (ret) { 8f6f9ed15d679a drivers/staging/most/aim-v4l2/video.c Christian Gromm 2016-06-06 425 v4l2_err(&mdev->v4l2_dev, "video_register_device failed (%d)\n", b23e8e51e6dc40 drivers/staging/most/aim-v4l2/video.c Christian Gromm 2016-06-06 426 ret); eab231c0398a91 drivers/staging/most/aim-v4l2/video.c Christian Gromm 2016-06-06 427 video_device_release(mdev->vdev); 3d31c0cb6c127b drivers/staging/most/aim-v4l2/video.c Christian Gromm 2015-07-24 428 } 3d31c0cb6c127b drivers/staging/most/aim-v4l2/video.c Christian Gromm 2015-07-24 429 3d31c0cb6c127b drivers/staging/most/aim-v4l2/video.c Christian Gromm 2015-07-24 430 return ret; 3d31c0cb6c127b drivers/staging/most/aim-v4l2/video.c Christian Gromm 2015-07-24 431 } 3d31c0cb6c127b drivers/staging/most/aim-v4l2/video.c Christian Gromm 2015-07-24 432 -- 0-DAY CI Kernel Test Service https://github.com/intel/lkp-tests/wiki
