diff options
Diffstat (limited to 'include/linux/netdevice.h')
| -rw-r--r-- | include/linux/netdevice.h | 15 |
1 files changed, 15 insertions, 0 deletions
diff --git a/include/linux/netdevice.h b/include/linux/netdevice.h index 9981d637f8b5..987c3c87f14f 100644 --- a/include/linux/netdevice.h +++ b/include/linux/netdevice.h @@ -2142,6 +2142,8 @@ enum netdev_reg_state { * * FIXME: cleanup struct net_device such that network protocol info * moves out. + * + * @netdev_trace_buffer_list: Linked list for debugging refcount leak. */ struct net_device { @@ -2298,6 +2300,9 @@ struct net_device { #if IS_ENABLED(CONFIG_TLS_DEVICE) const struct tlsdev_ops *tlsdev_ops; #endif +#ifdef CONFIG_NET_DEV_REFCNT_TRACKER + struct list_head netdev_trace_buffer_list; +#endif unsigned int operstate; unsigned char link_mode; @@ -3248,6 +3253,7 @@ enum netdev_cmd { NETDEV_OFFLOAD_XSTATS_REPORT_USED, NETDEV_OFFLOAD_XSTATS_REPORT_DELTA, NETDEV_XDP_FEAT_CHANGE, + NETDEV_DEBUG_UNREGISTER, }; const char *netdev_cmd_to_name(enum netdev_cmd cmd); @@ -4469,9 +4475,15 @@ static inline bool dev_nit_active(const struct net_device *dev) void dev_queue_xmit_nit(struct sk_buff *skb, struct net_device *dev); +void save_netdev_trace_buffer(struct net_device *dev, int delta); +int trim_netdev_trace(unsigned long *entries, int nr_entries); + static inline void __dev_put(struct net_device *dev) { if (dev) { +#ifdef CONFIG_NET_DEV_REFCNT_TRACKER + save_netdev_trace_buffer(dev, -1); +#endif #ifdef CONFIG_PCPU_DEV_REFCNT this_cpu_dec(*dev->pcpu_refcnt); #else @@ -4483,6 +4495,9 @@ static inline void __dev_put(struct net_device *dev) static inline void __dev_hold(struct net_device *dev) { if (dev) { +#ifdef CONFIG_NET_DEV_REFCNT_TRACKER + save_netdev_trace_buffer(dev, 1); +#endif #ifdef CONFIG_PCPU_DEV_REFCNT this_cpu_inc(*dev->pcpu_refcnt); #else |