diff options
Diffstat (limited to 'net/core/dev.c')
| -rw-r--r-- | net/core/dev.c | 32 |
1 files changed, 26 insertions, 6 deletions
diff --git a/net/core/dev.c b/net/core/dev.c index bd9c8510d86f..9d55bf5d1a65 100644 --- a/net/core/dev.c +++ b/net/core/dev.c @@ -4841,6 +4841,21 @@ int netif_rx_ni(struct sk_buff *skb) } EXPORT_SYMBOL(netif_rx_ni); +int netif_rx_any_context(struct sk_buff *skb) +{ + /* + * If invoked from contexts which do not invoke bottom half + * processing either at return from interrupt or when softrqs are + * reenabled, use netif_rx_ni() which invokes bottomhalf processing + * directly. + */ + if (in_interrupt()) + return netif_rx(skb); + else + return netif_rx_ni(skb); +} +EXPORT_SYMBOL(netif_rx_any_context); + static __latent_entropy void net_tx_action(struct softirq_action *h) { struct softnet_data *sd = this_cpu_ptr(&softnet_data); @@ -5442,15 +5457,20 @@ static int generic_xdp_install(struct net_device *dev, struct netdev_bpf *xdp) if (new) { u32 i; + mutex_lock(&new->aux->used_maps_mutex); + /* generic XDP does not work with DEVMAPs that can * have a bpf_prog installed on an entry */ for (i = 0; i < new->aux->used_map_cnt; i++) { - if (dev_map_can_have_prog(new->aux->used_maps[i])) - return -EINVAL; - if (cpu_map_prog_allowed(new->aux->used_maps[i])) + if (dev_map_can_have_prog(new->aux->used_maps[i]) || + cpu_map_prog_allowed(new->aux->used_maps[i])) { + mutex_unlock(&new->aux->used_maps_mutex); return -EINVAL; + } } + + mutex_unlock(&new->aux->used_maps_mutex); } switch (xdp->command) { @@ -8689,7 +8709,7 @@ int dev_get_port_parent_id(struct net_device *dev, if (!first.id_len) first = *ppid; else if (memcmp(&first, ppid, sizeof(*ppid))) - return -ENODATA; + return -EOPNOTSUPP; } return err; @@ -10016,6 +10036,8 @@ int netdev_refcnt_read(const struct net_device *dev) } EXPORT_SYMBOL(netdev_refcnt_read); +#define WAIT_REFS_MIN_MSECS 1 +#define WAIT_REFS_MAX_MSECS 250 /** * netdev_wait_allrefs - wait until all references are gone. * @dev: target net_device @@ -10028,8 +10050,6 @@ EXPORT_SYMBOL(netdev_refcnt_read); * We can get stuck here if buggy protocols don't correctly * call dev_put. */ -#define WAIT_REFS_MIN_MSECS 1 -#define WAIT_REFS_MAX_MSECS 250 static void netdev_wait_allrefs(struct net_device *dev) { unsigned long rebroadcast_time, warning_time; |