Hi Kees, First bad commit (maybe != root cause): tree: https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux-stable.git linux-5.15.y head: 7349e40704a0209a2af8b37fa876322209de9684 commit: 33db9912ff7c491f839c89a08e98f755aa09598f [36/9999] ubsan: remove CONFIG_UBSAN_OBJECT_SIZE config: riscv-randconfig-r012-20230608 (https://download.01.org/0day-ci/archive/20230610/202306100926.Svnvd4mx-lkp@xxxxxxxxx/config) compiler: clang version 14.0.6 (https://github.com/llvm/llvm-project.git f28c006a5895fc0e329fe15fead81e37457cb1d1) reproduce (this is a W=1 build): mkdir -p ~/bin wget https://raw.githubusercontent.com/intel/lkp-tests/master/sbin/make.cross -O ~/bin/make.cross chmod +x ~/bin/make.cross # install riscv cross compiling tool for clang build # apt-get install binutils-riscv-linux-gnu # https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux-stable.git/commit/?id=33db9912ff7c491f839c89a08e98f755aa09598f git remote add stable https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux-stable.git git fetch --no-tags stable linux-5.15.y git checkout 33db9912ff7c491f839c89a08e98f755aa09598f # save the config file mkdir build_dir && cp config build_dir/.config COMPILER_INSTALL_PATH=$HOME/0day COMPILER=clang ~/bin/make.cross W=1 O=build_dir ARCH=riscv olddefconfig COMPILER_INSTALL_PATH=$HOME/0day COMPILER=clang ~/bin/make.cross W=1 O=build_dir ARCH=riscv SHELL=/bin/bash drivers/media/dvb-frontends/ If you fix the issue in a separate patch/commit (i.e. not just a new version of the same patch/commit), kindly add following tags | Reported-by: kernel test robot <lkp@xxxxxxxxx> | Closes: https://lore.kernel.org/oe-kbuild-all/202306100926.Svnvd4mx-lkp@xxxxxxxxx/ All warnings (new ones prefixed by >>): >> drivers/media/dvb-frontends/mb86a16.c:1600:26: warning: stack frame size (1168) exceeds limit (1024) in 'mb86a16_search' [-Wframe-larger-than] static enum dvbfe_search mb86a16_search(struct dvb_frontend *fe) ^ 1 warning generated. vim +/mb86a16_search +1600 drivers/media/dvb-frontends/mb86a16.c 41e840b13e111b drivers/media/dvb/frontends/mb86a16.c Manu Abraham 2009-12-02 1599 41da5320df6dec drivers/media/dvb/frontends/mb86a16.c Mauro Carvalho Chehab 2011-12-26 @1600 static enum dvbfe_search mb86a16_search(struct dvb_frontend *fe) 41e840b13e111b drivers/media/dvb/frontends/mb86a16.c Manu Abraham 2009-12-02 1601 { 41da5320df6dec drivers/media/dvb/frontends/mb86a16.c Mauro Carvalho Chehab 2011-12-26 1602 struct dtv_frontend_properties *p = &fe->dtv_property_cache; 41e840b13e111b drivers/media/dvb/frontends/mb86a16.c Manu Abraham 2009-12-02 1603 struct mb86a16_state *state = fe->demodulator_priv; 41e840b13e111b drivers/media/dvb/frontends/mb86a16.c Manu Abraham 2009-12-02 1604 41e840b13e111b drivers/media/dvb/frontends/mb86a16.c Manu Abraham 2009-12-02 1605 state->frequency = p->frequency / 1000; 41da5320df6dec drivers/media/dvb/frontends/mb86a16.c Mauro Carvalho Chehab 2011-12-26 1606 state->srate = p->symbol_rate / 1000; 41e840b13e111b drivers/media/dvb/frontends/mb86a16.c Manu Abraham 2009-12-02 1607 5dd83a35bea908 drivers/media/dvb/frontends/mb86a16.c Manu Abraham 2009-12-15 1608 if (!mb86a16_set_fe(state)) { 25985edcedea63 drivers/media/dvb/frontends/mb86a16.c Lucas De Marchi 2011-03-30 1609 dprintk(verbose, MB86A16_ERROR, 1, "Successfully acquired LOCK"); 5dd83a35bea908 drivers/media/dvb/frontends/mb86a16.c Manu Abraham 2009-12-15 1610 return DVBFE_ALGO_SEARCH_SUCCESS; 5dd83a35bea908 drivers/media/dvb/frontends/mb86a16.c Manu Abraham 2009-12-15 1611 } 41e840b13e111b drivers/media/dvb/frontends/mb86a16.c Manu Abraham 2009-12-02 1612 5dd83a35bea908 drivers/media/dvb/frontends/mb86a16.c Manu Abraham 2009-12-15 1613 dprintk(verbose, MB86A16_ERROR, 1, "Lock acquisition failed!"); 5dd83a35bea908 drivers/media/dvb/frontends/mb86a16.c Manu Abraham 2009-12-15 1614 return DVBFE_ALGO_SEARCH_FAILED; 41e840b13e111b drivers/media/dvb/frontends/mb86a16.c Manu Abraham 2009-12-02 1615 } 41e840b13e111b drivers/media/dvb/frontends/mb86a16.c Manu Abraham 2009-12-02 1616 :::::: The code at line 1600 was first introduced by commit :::::: 41da5320df6decec7efce0d936ccadfa9deb49d1 [media] dvb: don't pass a DVBv3 parameter for search() fops :::::: TO: Mauro Carvalho Chehab <mchehab@xxxxxxxxxx> :::::: CC: Mauro Carvalho Chehab <mchehab@xxxxxxxxxx> -- 0-DAY CI Kernel Test Service https://github.com/intel/lkp-tests/wiki
