Hi David, Thank you for the patch! Perhaps something to improve: [auto build test WARNING on sound/for-next] [also build test WARNING on v5.12-rc7 next-20210416] [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/David-Henningsson/sound-rawmidi-Add-framing-mode/20210418-231512 base: https://git.kernel.org/pub/scm/linux/kernel/git/tiwai/sound.git for-next config: x86_64-randconfig-a001-20210418 (attached as .config) compiler: clang version 13.0.0 (https://github.com/llvm/llvm-project 1c10201d9660c1d6f43a7226ca7381bfa255105d) 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 # install x86_64 cross compiling tool for clang build # apt-get install binutils-x86-64-linux-gnu # https://github.com/0day-ci/linux/commit/6b82e8d56896a3eb7f9024ae5838c4c3402bc4a4 git remote add linux-review https://github.com/0day-ci/linux git fetch --no-tags linux-review David-Henningsson/sound-rawmidi-Add-framing-mode/20210418-231512 git checkout 6b82e8d56896a3eb7f9024ae5838c4c3402bc4a4 # save the attached .config to linux build tree COMPILER_INSTALL_PATH=$HOME/0day COMPILER=clang make.cross W=1 ARCH=x86_64 If you fix the issue, kindly add following tag as appropriate Reported-by: kernel test robot <lkp@xxxxxxxxx> All warnings (new ones prefixed by >>): >> sound/core/rawmidi.c:1014:19: warning: no previous prototype for function 'get_framing_tstamp' [-Wmissing-prototypes] struct timespec64 get_framing_tstamp(struct snd_rawmidi_substream *substream) ^ sound/core/rawmidi.c:1014:1: note: declare 'static' if the function is not intended to be used outside of this translation unit struct timespec64 get_framing_tstamp(struct snd_rawmidi_substream *substream) ^ static 1 warning generated. vim +/get_framing_tstamp +1014 sound/core/rawmidi.c 1013 > 1014 struct timespec64 get_framing_tstamp(struct snd_rawmidi_substream *substream) 1015 { 1016 struct timespec64 ts64 = {0, 0}; 1017 1018 if (substream->framing != SNDRV_RAWMIDI_FRAMING_TSTAMP) 1019 return ts64; 1020 if (substream->clock_type == CLOCK_MONOTONIC_RAW) 1021 ktime_get_raw_ts64(&ts64); 1022 else 1023 ktime_get_ts64(&ts64); 1024 return ts64; 1025 } 1026 --- 0-DAY CI Kernel Test Service, Intel Corporation https://lists.01.org/hyperkitty/list/kbuild-all@xxxxxxxxxxxx
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