tree: https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git master head: 8ab774587903771821b59471cc723bba6d893942 commit: a52f8a59aef46b59753e583bf4b28fccb069ce64 fortify: Explicitly disable Clang support date: 7 weeks ago config: x86_64-randconfig-r035-20211114 (attached as .config) compiler: clang version 14.0.0 (https://github.com/llvm/llvm-project c3dddeeafb529e769cde87bd29ef6271ac6bfa5c) 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://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 a52f8a59aef46b59753e583bf4b28fccb069ce64 # 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(a)intel.com&gt; All warnings (new ones prefixed by >>): static int nxt200x_init(struct dvb_frontend* fe) ^ static int nxt200x_setup_frontend_parameters(struct dvb_frontend *fe) ^ 2 warnings generated. vim +/nxt200x_init +1087 drivers/media/dvb-frontends/nxt200x.c 04a45929e7f00e drivers/media/dvb/frontends/nxt200x.c Kirk Lapray 2005-11-08 1086 04a45929e7f00e drivers/media/dvb/frontends/nxt200x.c Kirk Lapray 2005-11-08 @1087 static int nxt200x_init(struct dvb_frontend* fe) 04a45929e7f00e drivers/media/dvb/frontends/nxt200x.c Kirk Lapray 2005-11-08 1088 { 04a45929e7f00e drivers/media/dvb/frontends/nxt200x.c Kirk Lapray 2005-11-08 1089 struct nxt200x_state* state = fe->demodulator_priv; 04a45929e7f00e drivers/media/dvb/frontends/nxt200x.c Kirk Lapray 2005-11-08 1090 int ret = 0; 04a45929e7f00e drivers/media/dvb/frontends/nxt200x.c Kirk Lapray 2005-11-08 1091 04a45929e7f00e drivers/media/dvb/frontends/nxt200x.c Kirk Lapray 2005-11-08 1092 if (!state->initialised) { 04a45929e7f00e drivers/media/dvb/frontends/nxt200x.c Kirk Lapray 2005-11-08 1093 switch (state->demod_chip) { 04a45929e7f00e drivers/media/dvb/frontends/nxt200x.c Kirk Lapray 2005-11-08 1094 case NXT2002: 04a45929e7f00e drivers/media/dvb/frontends/nxt200x.c Kirk Lapray 2005-11-08 1095 ret = nxt2002_init(fe); 04a45929e7f00e drivers/media/dvb/frontends/nxt200x.c Kirk Lapray 2005-11-08 1096 break; 04a45929e7f00e drivers/media/dvb/frontends/nxt200x.c Kirk Lapray 2005-11-08 1097 case NXT2004: 04a45929e7f00e drivers/media/dvb/frontends/nxt200x.c Kirk Lapray 2005-11-08 1098 ret = nxt2004_init(fe); 04a45929e7f00e drivers/media/dvb/frontends/nxt200x.c Kirk Lapray 2005-11-08 1099 break; 04a45929e7f00e drivers/media/dvb/frontends/nxt200x.c Kirk Lapray 2005-11-08 1100 default: 04a45929e7f00e drivers/media/dvb/frontends/nxt200x.c Kirk Lapray 2005-11-08 1101 return -EINVAL; 04a45929e7f00e drivers/media/dvb/frontends/nxt200x.c Kirk Lapray 2005-11-08 1102 } 04a45929e7f00e drivers/media/dvb/frontends/nxt200x.c Kirk Lapray 2005-11-08 1103 state->initialised = 1; 04a45929e7f00e drivers/media/dvb/frontends/nxt200x.c Kirk Lapray 2005-11-08 1104 } 04a45929e7f00e drivers/media/dvb/frontends/nxt200x.c Kirk Lapray 2005-11-08 1105 return ret; 04a45929e7f00e drivers/media/dvb/frontends/nxt200x.c Kirk Lapray 2005-11-08 1106 } 04a45929e7f00e drivers/media/dvb/frontends/nxt200x.c Kirk Lapray 2005-11-08 1107 :::::: The code at line 1087 was first introduced by commit :::::: 04a45929e7f00ed4fc7b1d375397f808c8a5d0eb [PATCH] dvb: add nxt200x frontend module :::::: TO: Kirk Lapray <kirk.lapray(a)gmail.com&gt; :::::: CC: Linus Torvalds <torvalds(a)g5.osdl.org&gt; --- 0-DAY CI Kernel Test Service, Intel Corporation https://lists.01.org/hyperkitty/list/kbuild-all@lists.01.org