Hi Kyeongdon, Thank you for the patch! Yet something to improve: [auto build test ERROR on linuxtv-media/master] [also build test ERROR on v5.14 next-20210902] [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/Kyeongdon-Kim/media-uvcvideo-use-dynamic-allocation-for-uvc_copy_op/20210902-172043 base: git://linuxtv.org/media_tree.git master config: i386-randconfig-a014-20210831 (attached as .config) compiler: clang version 14.0.0 (https://github.com/llvm/llvm-project c9948e9254fbb6ea00f66c7b4542311d21e060be) reproduce (this is a W=1 build): wget https://raw.githubusercontent.com/intel/lkp-tests/master/sbin/make.cross -O ~/bin/make.cross chmod +x ~/bin/make.cross # https://github.com/0day-ci/linux/commit/2a36e010c8f73cd5c36072caf7e63431a07f4aad git remote add linux-review https://github.com/0day-ci/linux git fetch --no-tags linux-review Kyeongdon-Kim/media-uvcvideo-use-dynamic-allocation-for-uvc_copy_op/20210902-172043 git checkout 2a36e010c8f73cd5c36072caf7e63431a07f4aad # save the attached .config to linux build tree mkdir build_dir COMPILER_INSTALL_PATH=$HOME/0day COMPILER=clang make.cross O=build_dir ARCH=i386 SHELL=/bin/bash If you fix the issue, kindly add following tag as appropriate Reported-by: kernel test robot <lkp@xxxxxxxxx> All errors (new ones prefixed by >>): >> drivers/media/usb/uvc/uvc_video.c:1619:19: error: use of undeclared identifier 'uvc_urb' for_each_uvc_urb(uvc_urb, stream) { ^ >> drivers/media/usb/uvc/uvc_video.c:1619:19: error: use of undeclared identifier 'uvc_urb' >> drivers/media/usb/uvc/uvc_video.c:1619:19: error: use of undeclared identifier 'uvc_urb' drivers/media/usb/uvc/uvc_video.c:1620:7: error: use of undeclared identifier 'uvc_urb' if (uvc_urb->copy_operations) { ^ drivers/media/usb/uvc/uvc_video.c:1621:10: error: use of undeclared identifier 'uvc_urb' kfree(uvc_urb->copy_operations); ^ >> drivers/media/usb/uvc/uvc_video.c:1622:4: error: must use 'struct' tag to refer to type 'uvc_urb' uvc_urb->copy_operations = NULL; ^ struct >> drivers/media/usb/uvc/uvc_video.c:1622:11: error: expected identifier or '(' uvc_urb->copy_operations = NULL; ^ drivers/media/usb/uvc/uvc_video.c:1631:19: error: use of undeclared identifier 'uvc_urb' for_each_uvc_urb(uvc_urb, stream) { ^ drivers/media/usb/uvc/uvc_video.c:1631:19: error: use of undeclared identifier 'uvc_urb' drivers/media/usb/uvc/uvc_video.c:1631:19: error: use of undeclared identifier 'uvc_urb' drivers/media/usb/uvc/uvc_video.c:1632:3: error: must use 'struct' tag to refer to type 'uvc_urb' uvc_urb->copy_operations ^ struct drivers/media/usb/uvc/uvc_video.c:1632:10: error: expected identifier or '(' uvc_urb->copy_operations ^ drivers/media/usb/uvc/uvc_video.c:1634:7: error: use of undeclared identifier 'uvc_urb' if (uvc_urb->copy_operations == NULL) ^ 13 errors generated. vim +/uvc_urb +1619 drivers/media/usb/uvc/uvc_video.c 1616 1617 static void uvc_free_urb_cop(struct uvc_streaming *stream) 1618 { > 1619 for_each_uvc_urb(uvc_urb, stream) { 1620 if (uvc_urb->copy_operations) { 1621 kfree(uvc_urb->copy_operations); > 1622 uvc_urb->copy_operations = NULL; 1623 } 1624 } 1625 } 1626 --- 0-DAY CI Kernel Test Service, Intel Corporation https://lists.01.org/hyperkitty/list/kbuild-all@xxxxxxxxxxxx
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