Hi Stephen, [auto build test ERROR on net-next/master] url: https://github.com/0day-ci/linux/commits/Stephen-Hemminger/netvsc-lockdep-and-related-fixes/20170720-191938 config: x86_64-rhel (attached as .config) compiler: gcc-6 (Debian 6.2.0-3) 6.2.0 20160901 reproduce: # save the attached .config to linux build tree make ARCH=x86_64 Note: the linux-review/Stephen-Hemminger/netvsc-lockdep-and-related-fixes/20170720-191938 HEAD a5e48342eae178e9ed020d3634cdf92f1f05cb70 builds fine. It only hurts bisectibility. All error/warnings (new ones prefixed by >>): drivers/net/hyperv/netvsc.c: In function 'netvsc_switch_datapath': >> drivers/net/hyperv/netvsc.c:44:33: error: implicit declaration of function 'rtnl_dereference' [-Werror=implicit-function-declaration] struct netvsc_device *nv_dev = rtnl_dereference(net_device_ctx->nvdev); ^~~~~~~~~~~~~~~~ >> drivers/net/hyperv/netvsc.c:44:33: warning: initialization makes pointer from integer without a cast [-Wint-conversion] drivers/net/hyperv/netvsc.c: In function 'netvsc_device_remove': drivers/net/hyperv/netvsc.c:553:5: warning: initialization makes pointer from integer without a cast [-Wint-conversion] = rtnl_dereference(net_device_ctx->nvdev); ^~~~~~~~~~~~~~~~ cc1: some warnings being treated as errors vim +/rtnl_dereference +44 drivers/net/hyperv/netvsc.c 35 36 /* 37 * Switch the data path from the synthetic interface to the VF 38 * interface. 39 */ 40 void netvsc_switch_datapath(struct net_device *ndev, bool vf) 41 { 42 struct net_device_context *net_device_ctx = netdev_priv(ndev); 43 struct hv_device *dev = net_device_ctx->device_ctx; > 44 struct netvsc_device *nv_dev = rtnl_dereference(net_device_ctx->nvdev); 45 struct nvsp_message *init_pkt = &nv_dev->channel_init_pkt; 46 47 memset(init_pkt, 0, sizeof(struct nvsp_message)); 48 init_pkt->hdr.msg_type = NVSP_MSG4_TYPE_SWITCH_DATA_PATH; 49 if (vf) 50 init_pkt->msg.v4_msg.active_dp.active_datapath = 51 NVSP_DATAPATH_VF; 52 else 53 init_pkt->msg.v4_msg.active_dp.active_datapath = 54 NVSP_DATAPATH_SYNTHETIC; 55 56 vmbus_sendpacket(dev->channel, init_pkt, 57 sizeof(struct nvsp_message), 58 (unsigned long)init_pkt, 59 VM_PKT_DATA_INBAND, 0); 60 61 net_device_ctx->datapath = vf; 62 } 63 --- 0-DAY kernel test infrastructure Open Source Technology Center https://lists.01.org/pipermail/kbuild-all Intel Corporation
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