Hi, kernel test robot noticed the following build warnings: [auto build test WARNING on trondmy-nfs/linux-next] [also build test WARNING on net/main net-next/main linus/master v6.17-rc4 next-20250905] [cannot apply to linux-nvme/for-next horms-ipvs/master] [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#_base_tree_information] url: https://github.com/intel-lab-lkp/linux/commits/alistair23-gmail-com/net-handshake-Store-the-key-serial-number-on-completion/20250905-105201 base: git://git.linux-nfs.org/projects/trondmy/linux-nfs.git linux-next patch link: https://lore.kernel.org/r/20250905024659.811386-8-alistair.francis%40wdc.com patch subject: [PATCH v2 7/7] nvmet-tcp: Support KeyUpdate config: s390-randconfig-001-20250905 (https://download.01.org/0day-ci/archive/20250905/202509052153.luapQMZm-lkp@xxxxxxxxx/config) compiler: s390-linux-gcc (GCC) 9.5.0 reproduce (this is a W=1 build): (https://download.01.org/0day-ci/archive/20250905/202509052153.luapQMZm-lkp@xxxxxxxxx/reproduce) 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/202509052153.luapQMZm-lkp@xxxxxxxxx/ All warnings (new ones prefixed by >>): drivers/nvme/target/tcp.c: In function 'nvmet_tcp_tls_record_ok': >> drivers/nvme/target/tcp.c:1173:12: warning: unused variable 'htype' [-Wunused-variable] 1173 | u8 ctype, htype, level, description; | ^~~~~ drivers/nvme/target/tcp.c: In function 'nvmet_tcp_io_work': drivers/nvme/target/tcp.c:1479:5: error: implicit declaration of function 'update_tls_keys'; did you mean 'update_cr_regs'? [-Werror=implicit-function-declaration] 1479 | update_tls_keys(queue); | ^~~~~~~~~~~~~~~ | update_cr_regs cc1: some warnings being treated as errors vim +/htype +1173 drivers/nvme/target/tcp.c 1168 1169 static int nvmet_tcp_tls_record_ok(struct nvmet_tcp_queue *queue, 1170 struct msghdr *msg, char *cbuf) 1171 { 1172 struct cmsghdr *cmsg = (struct cmsghdr *)cbuf; > 1173 u8 ctype, htype, level, description; 1174 int ret = 0; 1175 1176 ctype = tls_get_record_type(queue->sock->sk, cmsg); 1177 switch (ctype) { 1178 case 0: 1179 break; 1180 case TLS_RECORD_TYPE_DATA: 1181 break; 1182 case TLS_RECORD_TYPE_ALERT: 1183 tls_alert_recv(queue->sock->sk, msg, &level, &description); 1184 if (level == TLS_ALERT_LEVEL_FATAL) { 1185 pr_err("queue %d: TLS Alert desc %u\n", 1186 queue->idx, description); 1187 ret = -ENOTCONN; 1188 } else { 1189 pr_warn("queue %d: TLS Alert desc %u\n", 1190 queue->idx, description); 1191 ret = -EAGAIN; 1192 } 1193 break; 1194 case TLS_RECORD_TYPE_HANDSHAKE: 1195 ret = -EAGAIN; 1196 break; 1197 default: 1198 /* discard this record type */ 1199 pr_err("queue %d: TLS record %d unhandled\n", 1200 queue->idx, ctype); 1201 ret = -EAGAIN; 1202 break; 1203 } 1204 return ret; 1205 } 1206 -- 0-DAY CI Kernel Test Service https://github.com/intel/lkp-tests/wiki