Hi Alice, First bad commit (maybe != root cause): tree: https://git.kernel.org/pub/scm/linux/kernel/git/jkirsher/next-queue.git dev-queue head: ecb4203e85ea61fef623f9df41b0a68285c48361 commit: f2f18999e1b409dfc9d24e539dff43a81501c81f [48/55] iecm: Add iecm to the kernel build system config: i386-randconfig-a004-20200820 (attached as .config) compiler: gcc-9 (Debian 9.3.0-15) 9.3.0 reproduce (this is a W=1 build): git checkout f2f18999e1b409dfc9d24e539dff43a81501c81f # save the attached .config to linux build tree make W=1 ARCH=i386 If you fix the issue, kindly add following tag as appropriate Reported-by: kernel test robot <lkp(a)intel.com&gt; All errors (new ones prefixed by >>): In file included from include/linux/net/intel/iecm.h:12, from drivers/net/ethernet/intel/iecm/iecm_txrx.c:4: include/linux/avf/virtchnl.h:175:36: warning: division by zero [-Wdiv-by-zero] 175 | { virtchnl_static_assert_##X = (n)/((sizeof(struct X) == (n)) ? 1 : 0) } | ^ include/linux/avf/virtchnl.h:809:1: note: in expansion of macro 'VIRTCHNL_CHECK_STRUCT_LEN' 809 | VIRTCHNL_CHECK_STRUCT_LEN(16, virtchnl_get_capabilities); | ^~~~~~~~~~~~~~~~~~~~~~~~~ include/linux/avf/virtchnl.h:809:31: error: enumerator value for 'virtchnl_static_assert_virtchnl_get_capabilities' is not an integer constant 809 | VIRTCHNL_CHECK_STRUCT_LEN(16, virtchnl_get_capabilities); | ^~~~~~~~~~~~~~~~~~~~~~~~~ include/linux/avf/virtchnl.h:175:53: note: in definition of macro 'VIRTCHNL_CHECK_STRUCT_LEN' 175 | { virtchnl_static_assert_##X = (n)/((sizeof(struct X) == (n)) ? 1 : 0) } | ^ include/linux/avf/virtchnl.h:175:36: warning: division by zero [-Wdiv-by-zero] 175 | { virtchnl_static_assert_##X = (n)/((sizeof(struct X) == (n)) ? 1 : 0) } | ^ include/linux/avf/virtchnl.h:891:1: note: in expansion of macro 'VIRTCHNL_CHECK_STRUCT_LEN' 891 | VIRTCHNL_CHECK_STRUCT_LEN(40, virtchnl_txq_info_v2); | ^~~~~~~~~~~~~~~~~~~~~~~~~ include/linux/avf/virtchnl.h:891:31: error: enumerator value for 'virtchnl_static_assert_virtchnl_txq_info_v2' is not an integer constant 891 | VIRTCHNL_CHECK_STRUCT_LEN(40, virtchnl_txq_info_v2); | ^~~~~~~~~~~~~~~~~~~~ include/linux/avf/virtchnl.h:175:53: note: in definition of macro 'VIRTCHNL_CHECK_STRUCT_LEN' 175 | { virtchnl_static_assert_##X = (n)/((sizeof(struct X) == (n)) ? 1 : 0) } | ^ include/linux/avf/virtchnl.h:175:36: warning: division by zero [-Wdiv-by-zero] 175 | { virtchnl_static_assert_##X = (n)/((sizeof(struct X) == (n)) ? 1 : 0) } | ^ include/linux/avf/virtchnl.h:907:1: note: in expansion of macro 'VIRTCHNL_CHECK_STRUCT_LEN' 907 | VIRTCHNL_CHECK_STRUCT_LEN(48, virtchnl_config_tx_queues); | ^~~~~~~~~~~~~~~~~~~~~~~~~ include/linux/avf/virtchnl.h:907:31: error: enumerator value for 'virtchnl_static_assert_virtchnl_config_tx_queues' is not an integer constant 907 | VIRTCHNL_CHECK_STRUCT_LEN(48, virtchnl_config_tx_queues); | ^~~~~~~~~~~~~~~~~~~~~~~~~ include/linux/avf/virtchnl.h:175:53: note: in definition of macro 'VIRTCHNL_CHECK_STRUCT_LEN' 175 | { virtchnl_static_assert_##X = (n)/((sizeof(struct X) == (n)) ? 1 : 0) } | ^ include/linux/avf/virtchnl.h:175:36: warning: division by zero [-Wdiv-by-zero] 175 | { virtchnl_static_assert_##X = (n)/((sizeof(struct X) == (n)) ? 1 : 0) } | ^ include/linux/avf/virtchnl.h:937:1: note: in expansion of macro 'VIRTCHNL_CHECK_STRUCT_LEN' 937 | VIRTCHNL_CHECK_STRUCT_LEN(72, virtchnl_rxq_info_v2); | ^~~~~~~~~~~~~~~~~~~~~~~~~ include/linux/avf/virtchnl.h:937:31: error: enumerator value for 'virtchnl_static_assert_virtchnl_rxq_info_v2' is not an integer constant 937 | VIRTCHNL_CHECK_STRUCT_LEN(72, virtchnl_rxq_info_v2); | ^~~~~~~~~~~~~~~~~~~~ include/linux/avf/virtchnl.h:175:53: note: in definition of macro 'VIRTCHNL_CHECK_STRUCT_LEN' 175 | { virtchnl_static_assert_##X = (n)/((sizeof(struct X) == (n)) ? 1 : 0) } | ^ include/linux/avf/virtchnl.h:175:36: warning: division by zero [-Wdiv-by-zero] 175 | { virtchnl_static_assert_##X = (n)/((sizeof(struct X) == (n)) ? 1 : 0) } | ^ include/linux/avf/virtchnl.h:952:1: note: in expansion of macro 'VIRTCHNL_CHECK_STRUCT_LEN' 952 | VIRTCHNL_CHECK_STRUCT_LEN(80, virtchnl_config_rx_queues); | ^~~~~~~~~~~~~~~~~~~~~~~~~ include/linux/avf/virtchnl.h:952:31: error: enumerator value for 'virtchnl_static_assert_virtchnl_config_rx_queues' is not an integer constant 952 | VIRTCHNL_CHECK_STRUCT_LEN(80, virtchnl_config_rx_queues); | ^~~~~~~~~~~~~~~~~~~~~~~~~ include/linux/avf/virtchnl.h:175:53: note: in definition of macro 'VIRTCHNL_CHECK_STRUCT_LEN' 175 | { virtchnl_static_assert_##X = (n)/((sizeof(struct X) == (n)) ? 1 : 0) } | ^ include/linux/avf/virtchnl.h:175:36: warning: division by zero [-Wdiv-by-zero] 175 | { virtchnl_static_assert_##X = (n)/((sizeof(struct X) == (n)) ? 1 : 0) } | ^ include/linux/avf/virtchnl.h:1090:1: note: in expansion of macro 'VIRTCHNL_CHECK_STRUCT_LEN' 1090 | VIRTCHNL_CHECK_STRUCT_LEN(16, virtchnl_rss_hash); | ^~~~~~~~~~~~~~~~~~~~~~~~~ include/linux/avf/virtchnl.h:1090:31: error: enumerator value for 'virtchnl_static_assert_virtchnl_rss_hash' is not an integer constant 1090 | VIRTCHNL_CHECK_STRUCT_LEN(16, virtchnl_rss_hash); | ^~~~~~~~~~~~~~~~~ include/linux/avf/virtchnl.h:175:53: note: in definition of macro 'VIRTCHNL_CHECK_STRUCT_LEN' 175 | { virtchnl_static_assert_##X = (n)/((sizeof(struct X) == (n)) ? 1 : 0) } | ^ drivers/net/ethernet/intel/iecm/iecm_txrx.c: In function 'iecm_stash_flow_sch_buffers': 1370 | shadow_buf->dma = tx_buf->dma; | ^~ drivers/net/ethernet/intel/iecm/iecm_txrx.c:1370:26: error: 'struct iecm_tx_buf' has no member named 'dma' 1370 | shadow_buf->dma = tx_buf->dma; | ^~ 1371 | shadow_buf->len = tx_buf->len; | ^~ drivers/net/ethernet/intel/iecm/iecm_txrx.c:1371:26: error: 'struct iecm_tx_buf' has no member named 'len' 1371 | shadow_buf->len = tx_buf->len; | ^~ # https://git.kernel.org/pub/scm/linux/kernel/git/jkirsher/next-queue.git/c... git remote add jkirsher-next-queue https://git.kernel.org/pub/scm/linux/kernel/git/jkirsher/next-queue.git git fetch --no-tags jkirsher-next-queue dev-queue git checkout f2f18999e1b409dfc9d24e539dff43a81501c81f vim +1370 drivers/net/ethernet/intel/iecm/iecm_txrx.c 98accafb2669bd Alice Michael 2020-08-14 1346 98accafb2669bd Alice Michael 2020-08-14 1347 /** 98accafb2669bd Alice Michael 2020-08-14 1348 * iecm_stash_flow_sch_buffers - store buffere parameter info to be freed at a 98accafb2669bd Alice Michael 2020-08-14 1349 * later time (only relevant for flow scheduling mode) 98accafb2669bd Alice Michael 2020-08-14 1350 * @txq: Tx queue to clean 98accafb2669bd Alice Michael 2020-08-14 1351 * @tx_buf: buffer to store 98accafb2669bd Alice Michael 2020-08-14 1352 */ 98accafb2669bd Alice Michael 2020-08-14 1353 static int 98accafb2669bd Alice Michael 2020-08-14 1354 iecm_stash_flow_sch_buffers(struct iecm_queue *txq, struct iecm_tx_buf *tx_buf) 98accafb2669bd Alice Michael 2020-08-14 1355 { 097c7f5e5f5e79 Alice Michael 2020-08-14 1356 struct iecm_adapter *adapter = txq->vport->adapter; 097c7f5e5f5e79 Alice Michael 2020-08-14 1357 struct iecm_tx_buf *shadow_buf; 097c7f5e5f5e79 Alice Michael 2020-08-14 1358 097c7f5e5f5e79 Alice Michael 2020-08-14 1359 shadow_buf = iecm_buf_lifo_pop(&txq->buf_stack); 097c7f5e5f5e79 Alice Michael 2020-08-14 1360 if (!shadow_buf) { 097c7f5e5f5e79 Alice Michael 2020-08-14 1361 dev_err(&adapter->pdev->dev, 097c7f5e5f5e79 Alice Michael 2020-08-14 1362 "No out-of-order TX buffers left!\n"); 097c7f5e5f5e79 Alice Michael 2020-08-14 1363 return -ENOMEM; 097c7f5e5f5e79 Alice Michael 2020-08-14 1364 } 097c7f5e5f5e79 Alice Michael 2020-08-14 1365 097c7f5e5f5e79 Alice Michael 2020-08-14 1366 /* Store buffer params in shadow buffer */ 097c7f5e5f5e79 Alice Michael 2020-08-14 1367 shadow_buf->skb = tx_buf->skb; 097c7f5e5f5e79 Alice Michael 2020-08-14 1368 shadow_buf->bytecount = tx_buf->bytecount; 097c7f5e5f5e79 Alice Michael 2020-08-14 1369 shadow_buf->gso_segs = tx_buf->gso_segs; 097c7f5e5f5e79 Alice Michael 2020-08-14 @1370 shadow_buf->dma = tx_buf->dma; 097c7f5e5f5e79 Alice Michael 2020-08-14 @1371 shadow_buf->len = tx_buf->len; 097c7f5e5f5e79 Alice Michael 2020-08-14 1372 shadow_buf->compl_tag = tx_buf->compl_tag; 097c7f5e5f5e79 Alice Michael 2020-08-14 1373 097c7f5e5f5e79 Alice Michael 2020-08-14 1374 /* Add buffer to buf_hash table to be freed 097c7f5e5f5e79 Alice Michael 2020-08-14 1375 * later 097c7f5e5f5e79 Alice Michael 2020-08-14 1376 */ 097c7f5e5f5e79 Alice Michael 2020-08-14 1377 hash_add(txq->sched_buf_hash, &shadow_buf->hlist, 097c7f5e5f5e79 Alice Michael 2020-08-14 1378 shadow_buf->compl_tag); 097c7f5e5f5e79 Alice Michael 2020-08-14 1379 097c7f5e5f5e79 Alice Michael 2020-08-14 1380 memset(tx_buf, 0, sizeof(struct iecm_tx_buf)); 097c7f5e5f5e79 Alice Michael 2020-08-14 1381 097c7f5e5f5e79 Alice Michael 2020-08-14 1382 return 0; 98accafb2669bd Alice Michael 2020-08-14 1383 } 98accafb2669bd Alice Michael 2020-08-14 1384 :::::: The code at line 1370 was first introduced by commit :::::: 097c7f5e5f5e7941b1ebd5ded4fd736aacd22b3d iecm: Add splitq TX/RX :::::: TO: Alice Michael <alice.michael(a)intel.com&gt; :::::: CC: Tony Nguyen <anthony.l.nguyen(a)intel.com&gt; --- 0-DAY CI Kernel Test Service, Intel Corporation https://lists.01.org/hyperkitty/list/kbuild-all@lists.01.org