[kbuild-all] drivers/staging/media/hantro/hantro_g2_hevc_dec.c:536:5: warning: stack frame size (1248) exceeds limit (1024) in 'hantro_g2_hevc_dec_run'

tree: https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git master head: 8ab774587903771821b59471cc723bba6d893942 commit: 8341dcfbd8dda98a3b2836a421016f7d88e35b1c riscv: Enable Undefined Behavior Sanitizer UBSAN date: 3 months ago config: riscv-randconfig-r036-20211116 (attached as .config) compiler: clang version 14.0.0 (https://github.com/llvm/llvm-project fbe72e41b99dc7994daac300d208a955be3e4a0a) 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 riscv cross compiling tool for clang build # apt-get install binutils-riscv64-linux-gnu # https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit... git remote add linus https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git git fetch --no-tags linus master git checkout 8341dcfbd8dda98a3b2836a421016f7d88e35b1c # save the attached .config to linux build tree COMPILER_INSTALL_PATH=$HOME/0day COMPILER=clang make.cross W=1 ARCH=riscv If you fix the issue, kindly add following tag as appropriate Reported-by: kernel test robot <lkp(a)intel.com&gt; All warnings (new ones prefixed by >>): int hantro_g2_hevc_dec_run(struct hantro_ctx *ctx) ^ 1 warning generated. vim +/hantro_g2_hevc_dec_run +536 drivers/staging/media/hantro/hantro_g2_hevc_dec.c cb5dd5a0fa518d Benjamin Gaignard 2021-06-03 535 cb5dd5a0fa518d Benjamin Gaignard 2021-06-03 @536 int hantro_g2_hevc_dec_run(struct hantro_ctx *ctx) :::::: The code at line 536 was first introduced by commit :::::: cb5dd5a0fa518dff14ff2b90837c3c8f98f4dd5c media: hantro: Introduce G2/HEVC decoder :::::: TO: Benjamin Gaignard <benjamin.gaignard(a)collabora.com&gt; :::::: CC: Mauro Carvalho Chehab <mchehab+huawei(a)kernel.org&gt; --- 0-DAY CI Kernel Test Service, Intel Corporation https://lists.01.org/hyperkitty/list/kbuild-all@lists.01.org