Hi Tanmay, kernel test robot noticed the following build errors: [auto build test ERROR on net-next/main] url: https://github.com/intel-lab-lkp/linux/commits/Tanmay-Jagdale/crypto-octeontx2-Share-engine-group-info-with-AF-driver/20250618-193646 base: net-next/main patch link: https://lore.kernel.org/r/20250618113020.130888-15-tanmay%40marvell.com patch subject: [PATCH net-next v2 14/14] octeontx2-pf: ipsec: Add XFRM state and policy hooks for inbound flows config: um-allmodconfig (https://download.01.org/0day-ci/archive/20250625/202506252237.x9hiFnbB-lkp@xxxxxxxxx/config) compiler: clang version 19.1.7 (https://github.com/llvm/llvm-project cd708029e0b2869e80abe31ddb175f7c35361f90) reproduce (this is a W=1 build): (https://download.01.org/0day-ci/archive/20250625/202506252237.x9hiFnbB-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/202506252237.x9hiFnbB-lkp@xxxxxxxxx/ All errors (new ones prefixed by >>): In file included from drivers/net/ethernet/marvell/octeontx2/nic/cn10k_ipsec.c:7: In file included from include/net/xfrm.h:9: In file included from include/linux/skbuff.h:17: In file included from include/linux/bvec.h:10: In file included from include/linux/highmem.h:12: In file included from include/linux/hardirq.h:11: In file included from arch/um/include/asm/hardirq.h:5: In file included from include/asm-generic/hardirq.h:17: In file included from include/linux/irq.h:20: In file included from include/linux/io.h:12: In file included from arch/um/include/asm/io.h:24: include/asm-generic/io.h:1175:55: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 1175 | return (port > MMIO_UPPER_LIMIT) ? NULL : PCI_IOBASE + port; | ~~~~~~~~~~ ^ drivers/net/ethernet/marvell/octeontx2/nic/cn10k_ipsec.c:924:8: warning: variable 'ptr' set but not used [-Wunused-but-set-variable] 924 | void *ptr; | ^ >> drivers/net/ethernet/marvell/octeontx2/nic/cn10k_ipsec.c:1206:2: error: call to undeclared function 'dmb'; ISO C99 and later do not support implicit function declarations [-Wimplicit-function-declaration] 1206 | dmb(sy); | ^ >> drivers/net/ethernet/marvell/octeontx2/nic/cn10k_ipsec.c:1206:6: error: use of undeclared identifier 'sy' 1206 | dmb(sy); | ^ 2 warnings and 2 errors generated. vim +/dmb +1206 drivers/net/ethernet/marvell/octeontx2/nic/cn10k_ipsec.c 1156 1157 static int cn10k_inb_write_sa(struct otx2_nic *pf, 1158 struct xfrm_state *x, 1159 struct cn10k_inb_sw_ctx_info *inb_ctx_info) 1160 { 1161 dma_addr_t res_iova, dptr_iova, sa_iova; 1162 struct cn10k_rx_sa_s *sa_dptr, *sa_cptr; 1163 struct cpt_inst_s inst; 1164 u32 sa_size, off; 1165 struct cpt_res_s *res; 1166 u64 reg_val; 1167 int ret; 1168 1169 res = dma_alloc_coherent(pf->dev, sizeof(struct cpt_res_s), 1170 &res_iova, GFP_ATOMIC); 1171 if (!res) 1172 return -ENOMEM; 1173 1174 sa_cptr = inb_ctx_info->sa_entry; 1175 sa_iova = inb_ctx_info->sa_iova; 1176 sa_size = sizeof(struct cn10k_rx_sa_s); 1177 1178 sa_dptr = dma_alloc_coherent(pf->dev, sa_size, &dptr_iova, GFP_ATOMIC); 1179 if (!sa_dptr) { 1180 dma_free_coherent(pf->dev, sizeof(struct cpt_res_s), res, 1181 res_iova); 1182 return -ENOMEM; 1183 } 1184 1185 for (off = 0; off < (sa_size / 8); off++) 1186 *((u64 *)sa_dptr + off) = cpu_to_be64(*((u64 *)sa_cptr + off)); 1187 1188 memset(&inst, 0, sizeof(struct cpt_inst_s)); 1189 1190 res->compcode = 0; 1191 inst.res_addr = res_iova; 1192 inst.dptr = (u64)dptr_iova; 1193 inst.param2 = sa_size >> 3; 1194 inst.dlen = sa_size; 1195 inst.opcode_major = CN10K_IPSEC_MAJOR_OP_WRITE_SA; 1196 inst.opcode_minor = CN10K_IPSEC_MINOR_OP_WRITE_SA; 1197 inst.cptr = sa_iova; 1198 inst.ctx_val = 1; 1199 inst.egrp = CN10K_DEF_CPT_IPSEC_EGRP; 1200 1201 /* Re-use Outbound CPT LF to install Ingress SAs as well because 1202 * the driver does not own the ingress CPT LF. 1203 */ 1204 pf->ipsec.io_addr = (__force u64)otx2_get_regaddr(pf, CN10K_CPT_LF_NQX(0)); 1205 cn10k_cpt_inst_flush(pf, &inst, sizeof(struct cpt_inst_s)); > 1206 dmb(sy); 1207 1208 ret = cn10k_wait_for_cpt_respose(pf, res); 1209 if (ret) 1210 goto out; 1211 1212 /* Trigger CTX flush to write dirty data back to DRAM */ 1213 reg_val = FIELD_PREP(GENMASK_ULL(45, 0), sa_iova >> 7); 1214 otx2_write64(pf, CN10K_CPT_LF_CTX_FLUSH, reg_val); 1215 1216 out: 1217 dma_free_coherent(pf->dev, sa_size, sa_dptr, dptr_iova); 1218 dma_free_coherent(pf->dev, sizeof(struct cpt_res_s), res, res_iova); 1219 return ret; 1220 } 1221 -- 0-DAY CI Kernel Test Service https://github.com/intel/lkp-tests/wiki
