Hi Sai, Thank you for the patch! Perhaps something to improve: [auto build test WARNING on arm64/for-next/core] [also build test WARNING on rostedt-trace/for-next arnd-asm-generic/master arm-perf/for-next/perf v5.16-rc4 next-20211206] [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/Sai-Prakash-Ranjan/tracing-rwmmio-arm64-Add-support-to-trace-register-reads-writes/20211206-163212 base: https://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux.git for-next/core config: arm64-randconfig-r014-20211206 (https://download.01.org/0day-ci/archive/20211206/202112062304.8qIQUQyF-lkp@xxxxxxxxx/config) compiler: aarch64-linux-gcc (GCC) 11.2.0 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/0775ecf0f452d6b76b161d009dab52c90270755a git remote add linux-review https://github.com/0day-ci/linux git fetch --no-tags linux-review Sai-Prakash-Ranjan/tracing-rwmmio-arm64-Add-support-to-trace-register-reads-writes/20211206-163212 git checkout 0775ecf0f452d6b76b161d009dab52c90270755a # save the config file to linux build tree mkdir build_dir COMPILER_INSTALL_PATH=$HOME/0day COMPILER=gcc-11.2.0 make.cross O=build_dir ARCH=arm64 SHELL=/bin/bash drivers/gpu/ If you fix the issue, kindly add following tag as appropriate Reported-by: kernel test robot <lkp@xxxxxxxxx> All warnings (new ones prefixed by >>): In file included from drivers/gpu/drm/meson/meson_viu.c:16: drivers/gpu/drm/meson/meson_viu.c: In function 'meson_viu_init': >> drivers/gpu/drm/meson/meson_registers.h:1826:55: warning: conversion from 'long unsigned int' to 'u32' {aka 'unsigned int'} changes value from '18446744071814774785' to '2400190465' [-Woverflow] 1826 | #define VIU_OSD_BLEND_REORDER(dest, src) ((src) << (dest * 4)) | ^ drivers/gpu/drm/meson/meson_viu.c:472:32: note: in expansion of macro 'VIU_OSD_BLEND_REORDER' 472 | writel_relaxed(VIU_OSD_BLEND_REORDER(0, 1) | | ^~~~~~~~~~~~~~~~~~~~~ vim +1826 drivers/gpu/drm/meson/meson_registers.h b93a66faeea9ddf Neil Armstrong 2019-03-25 1824 b93a66faeea9ddf Neil Armstrong 2019-03-25 1825 #define VIU_OSD_BLEND_CTRL 0x39b0 147ae1cbaa18429 Julien Masson 2019-06-24 @1826 #define VIU_OSD_BLEND_REORDER(dest, src) ((src) << (dest * 4)) 147ae1cbaa18429 Julien Masson 2019-06-24 1827 #define VIU_OSD_BLEND_DIN_EN(bits) ((bits & 0xf) << 20) 147ae1cbaa18429 Julien Masson 2019-06-24 1828 #define VIU_OSD_BLEND1_DIN3_BYPASS_TO_DOUT1 BIT(24) 147ae1cbaa18429 Julien Masson 2019-06-24 1829 #define VIU_OSD_BLEND1_DOUT_BYPASS_TO_BLEND2 BIT(25) 147ae1cbaa18429 Julien Masson 2019-06-24 1830 #define VIU_OSD_BLEND_DIN0_BYPASS_TO_DOUT0 BIT(26) 147ae1cbaa18429 Julien Masson 2019-06-24 1831 #define VIU_OSD_BLEND_BLEN2_PREMULT_EN(input) ((input & 0x3) << 27) 147ae1cbaa18429 Julien Masson 2019-06-24 1832 #define VIU_OSD_BLEND_HOLD_LINES(lines) ((lines & 0x7) << 29) b93a66faeea9ddf Neil Armstrong 2019-03-25 1833 #define VIU_OSD_BLEND_CTRL1 0x39c0 b93a66faeea9ddf Neil Armstrong 2019-03-25 1834 #define VIU_OSD_BLEND_DIN0_SCOPE_H 0x39b1 b93a66faeea9ddf Neil Armstrong 2019-03-25 1835 #define VIU_OSD_BLEND_DIN0_SCOPE_V 0x39b2 b93a66faeea9ddf Neil Armstrong 2019-03-25 1836 #define VIU_OSD_BLEND_DIN1_SCOPE_H 0x39b3 b93a66faeea9ddf Neil Armstrong 2019-03-25 1837 #define VIU_OSD_BLEND_DIN1_SCOPE_V 0x39b4 b93a66faeea9ddf Neil Armstrong 2019-03-25 1838 #define VIU_OSD_BLEND_DIN2_SCOPE_H 0x39b5 b93a66faeea9ddf Neil Armstrong 2019-03-25 1839 #define VIU_OSD_BLEND_DIN2_SCOPE_V 0x39b6 b93a66faeea9ddf Neil Armstrong 2019-03-25 1840 #define VIU_OSD_BLEND_DIN3_SCOPE_H 0x39b7 b93a66faeea9ddf Neil Armstrong 2019-03-25 1841 #define VIU_OSD_BLEND_DIN3_SCOPE_V 0x39b8 b93a66faeea9ddf Neil Armstrong 2019-03-25 1842 #define VIU_OSD_BLEND_DUMMY_DATA0 0x39b9 b93a66faeea9ddf Neil Armstrong 2019-03-25 1843 #define VIU_OSD_BLEND_DUMMY_ALPHA 0x39ba b93a66faeea9ddf Neil Armstrong 2019-03-25 1844 #define VIU_OSD_BLEND_BLEND0_SIZE 0x39bb b93a66faeea9ddf Neil Armstrong 2019-03-25 1845 #define VIU_OSD_BLEND_BLEND1_SIZE 0x39bc b93a66faeea9ddf Neil Armstrong 2019-03-25 1846 #define VIU_OSD_BLEND_RO_CURRENT_XY 0x39bf b93a66faeea9ddf Neil Armstrong 2019-03-25 1847 --- 0-DAY CI Kernel Test Service, Intel Corporation https://lists.01.org/hyperkitty/list/kbuild-all@xxxxxxxxxxxx