Hi Suzuki, I love your patch! Perhaps something to improve:
[auto build test WARNING on linus/master] [also build test WARNING on next-20210226] [cannot apply to kvmarm/next arm64/for-next/core tip/perf/core v5.11] [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/Suzuki-K-Poulose/arm64-coresight-Add-support-for-ETE-and-TRBE/20210226-035447 base: https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git 6fbd6cf85a3be127454a1ad58525a3adcf8612ab config: arm64-allyesconfig (attached as .config) compiler: aarch64-linux-gcc (GCC) 9.3.0 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/66c402c1fecfcacd92971f7c4ef6ee17f8243745 git remote add linux-review https://github.com/0day-ci/linux git fetch --no-tags linux-review Suzuki-K-Poulose/arm64-coresight-Add-support-for-ETE-and-TRBE/20210226-035447 git checkout 66c402c1fecfcacd92971f7c4ef6ee17f8243745 # save the attached .config to linux build tree COMPILER_INSTALL_PATH=$HOME/0day COMPILER=gcc-9.3.0 make.cross ARCH=arm64 If you fix the issue, kindly add following tag as appropriate Reported-by: kernel test robot <l...@intel.com> All warnings (new ones prefixed by >>): >> drivers/hwtracing/coresight/coresight-etm4x-core.c:118:5: warning: no >> previous prototype for 'ete_sysreg_read' [-Wmissing-prototypes] 118 | u64 ete_sysreg_read(u32 offset, bool _relaxed, bool _64bit) | ^~~~~~~~~~~~~~~ >> drivers/hwtracing/coresight/coresight-etm4x-core.c:135:6: warning: no >> previous prototype for 'ete_sysreg_write' [-Wmissing-prototypes] 135 | void ete_sysreg_write(u64 val, u32 offset, bool _relaxed, bool _64bit) | ^~~~~~~~~~~~~~~~ vim +/ete_sysreg_read +118 drivers/hwtracing/coresight/coresight-etm4x-core.c 117 > 118 u64 ete_sysreg_read(u32 offset, bool _relaxed, bool _64bit) 119 { 120 u64 res = 0; 121 122 switch (offset) { 123 ETE_READ_CASES(res) 124 default : 125 pr_warn_ratelimited("ete: trying to read unsupported register @%x\n", 126 offset); 127 } 128 129 if (!_relaxed) 130 __iormb(res); /* Imitate the !relaxed I/O helpers */ 131 132 return res; 133 } 134 > 135 void ete_sysreg_write(u64 val, u32 offset, bool _relaxed, bool _64bit) 136 { 137 if (!_relaxed) 138 __iowmb(); /* Imitate the !relaxed I/O helpers */ 139 if (!_64bit) 140 val &= GENMASK(31, 0); 141 142 switch (offset) { 143 ETE_WRITE_CASES(val) 144 default : 145 pr_warn_ratelimited("ete: trying to write to unsupported register @%x\n", 146 offset); 147 } 148 } 149 --- 0-DAY CI Kernel Test Service, Intel Corporation https://lists.01.org/hyperkitty/list/kbuild-...@lists.01.org
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