Hi Yangtao, Thank you for the patch! Yet something to improve: [auto build test ERROR on linuxtv-media/master] [also build test ERROR on v4.20-rc4 next-20181130] [if your patch is applied to the wrong git tree, please drop us a note to help improve the system] url: https://github.com/0day-ci/linux/commits/Yangtao-Li/media-remove-bdisp_dbg_declare-and-hva_dbg_declare/20181202-033340 base: git://linuxtv.org/media_tree.git master config: nds32-allyesconfig (attached as .config) compiler: nds32le-linux-gcc (GCC) 6.4.0 reproduce: wget https://raw.githubusercontent.com/intel/lkp-tests/master/sbin/make.cross -O ~/bin/make.cross chmod +x ~/bin/make.cross # save the attached .config to linux build tree GCC_VERSION=6.4.0 make.cross ARCH=nds32 All errors (new ones prefixed by >>): drivers/media/platform/exynos4-is/fimc-is.c: In function 'fimc_is_debugfs_open': >> drivers/media/platform/exynos4-is/fimc-is.c:757:27: error: 'fimc_is_log_show' undeclared (first use in this function) return single_open(file, fimc_is_log_show, inode->i_private); ^~~~~~~~~~~~~~~~ drivers/media/platform/exynos4-is/fimc-is.c:757:27: note: each undeclared identifier is reported only once for each function it appears in At top level: drivers/media/platform/exynos4-is/fimc-is.c:755:12: warning: 'fimc_is_debugfs_open' defined but not used [-Wunused-function] static int fimc_is_debugfs_open(struct inode *inode, struct file *file) ^~~~~~~~~~~~~~~~~~~~ vim +/fimc_is_log_show +757 drivers/media/platform/exynos4-is/fimc-is.c 9a761e43 Sylwester Nawrocki 2013-03-11 754 9a761e43 Sylwester Nawrocki 2013-03-11 755 static int fimc_is_debugfs_open(struct inode *inode, struct file *file) 9a761e43 Sylwester Nawrocki 2013-03-11 756 { 9a761e43 Sylwester Nawrocki 2013-03-11 @757 return single_open(file, fimc_is_log_show, inode->i_private); 9a761e43 Sylwester Nawrocki 2013-03-11 758 } 9a761e43 Sylwester Nawrocki 2013-03-11 759 :::::: The code at line 757 was first introduced by commit :::::: 9a761e436843f228eaa2decda6d2c6dbd5ef1480 [media] exynos4-is: Add Exynos4x12 FIMC-IS driver :::::: TO: Sylwester Nawrocki <s.nawrocki@xxxxxxxxxxx> :::::: CC: Mauro Carvalho Chehab <mchehab@xxxxxxxxxx> --- 0-DAY kernel test infrastructure Open Source Technology Center https://lists.01.org/pipermail/kbuild-all Intel Corporation
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