Hi Sridhar, Thank you for the patch! Perhaps something to improve: [auto build test WARNING on net/master] [also build test WARNING on v4.17-rc1] [cannot apply to net-next/master next-20180420] [if your patch is applied to the wrong git tree, please drop us a note to help improve the system] url: https://github.com/0day-ci/linux/commits/Sridhar-Samudrala/Enable-virtio_net-to-act-as-a-standby-for-a-passthru-device/20180422-210557 reproduce: # apt-get install sparse make ARCH=x86_64 allmodconfig make C=1 CF=-D__CHECK_ENDIAN__ sparse warnings: (new ones prefixed by >>) >> net/core/failover.c:99:36: sparse: incorrect type in argument 1 (different address spaces) @@ expected struct net_device *dev @@ got struct net_devicestruct net_device *dev @@ net/core/failover.c:99:36: expected struct net_device *dev net/core/failover.c:99:36: got struct net_device [noderef] <asn:4>*standby_dev net/core/failover.c:102:36: sparse: incorrect type in argument 1 (different address spaces) @@ expected struct net_device *dev @@ got struct net_devicestruct net_device *dev @@ net/core/failover.c:102:36: expected struct net_device *dev net/core/failover.c:102:36: got struct net_device [noderef] <asn:4>*primary_dev >> net/core/failover.c:468:12: sparse: context imbalance in 'failover_select_queue' - wrong count at exit vim +99 net/core/failover.c 58 59 static int failover_slave_join(struct net_device *slave_dev, 60 struct net_device *failover_dev, 61 struct failover_ops *failover_ops) 62 { 63 struct failover_info *finfo; 64 int err, orig_mtu; 65 bool standby; 66 67 if (failover_ops) { 68 if (!failover_ops->slave_join) 69 return -EINVAL; 70 71 return failover_ops->slave_join(slave_dev, failover_dev); 72 } 73 74 if (netif_running(failover_dev)) { 75 err = dev_open(slave_dev); 76 if (err && (err != -EBUSY)) { 77 netdev_err(failover_dev, "Opening slave %s failed err:%d\n", 78 slave_dev->name, err); 79 goto err_dev_open; 80 } 81 } 82 83 /* Align MTU of slave with failover dev */ 84 orig_mtu = slave_dev->mtu; 85 err = dev_set_mtu(slave_dev, failover_dev->mtu); 86 if (err) { 87 netdev_err(failover_dev, "unable to change mtu of %s to %u register failed\n", 88 slave_dev->name, failover_dev->mtu); 89 goto err_set_mtu; 90 } 91 92 finfo = netdev_priv(failover_dev); 93 standby = (slave_dev->dev.parent == failover_dev->dev.parent); 94 95 dev_hold(slave_dev); 96 97 if (standby) { 98 rcu_assign_pointer(finfo->standby_dev, slave_dev); > 99 dev_get_stats(finfo->standby_dev, &finfo->standby_stats); 100 } else { 101 rcu_assign_pointer(finfo->primary_dev, slave_dev); 102 dev_get_stats(finfo->primary_dev, &finfo->primary_stats); 103 failover_dev->min_mtu = slave_dev->min_mtu; 104 failover_dev->max_mtu = slave_dev->max_mtu; 105 } 106 107 netdev_info(failover_dev, "failover slave:%s joined\n", 108 slave_dev->name); 109 110 return 0; 111 112 err_set_mtu: 113 dev_close(slave_dev); 114 err_dev_open: 115 return err; 116 } 117 --- 0-DAY kernel test infrastructure Open Source Technology Center https://lists.01.org/pipermail/kbuild-all Intel Corporation _______________________________________________ Virtualization mailing list Virtualization@xxxxxxxxxxxxxxxxxxxxxxxxxx https://lists.linuxfoundation.org/mailman/listinfo/virtualization
