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Diffstat (limited to 'net/core/dev.c')
-rw-r--r--net/core/dev.c98
1 files changed, 35 insertions, 63 deletions
diff --git a/net/core/dev.c b/net/core/dev.c
index 9bb8f87c4cda..cd0981977f5c 100644
--- a/net/core/dev.c
+++ b/net/core/dev.c
@@ -208,7 +208,8 @@ static inline void dev_base_seq_inc(struct net *net)
static inline struct hlist_head *dev_name_hash(struct net *net, const char *name)
{
- unsigned hash = full_name_hash(name, strnlen(name, IFNAMSIZ));
+ unsigned int hash = full_name_hash(name, strnlen(name, IFNAMSIZ));
+
return &net->dev_name_head[hash_32(hash, NETDEV_HASHBITS)];
}
@@ -299,10 +300,9 @@ static const unsigned short netdev_lock_type[] =
ARPHRD_BIF, ARPHRD_SIT, ARPHRD_IPDDP, ARPHRD_IPGRE,
ARPHRD_PIMREG, ARPHRD_HIPPI, ARPHRD_ASH, ARPHRD_ECONET,
ARPHRD_IRDA, ARPHRD_FCPP, ARPHRD_FCAL, ARPHRD_FCPL,
- ARPHRD_FCFABRIC, ARPHRD_IEEE802_TR, ARPHRD_IEEE80211,
- ARPHRD_IEEE80211_PRISM, ARPHRD_IEEE80211_RADIOTAP, ARPHRD_PHONET,
- ARPHRD_PHONET_PIPE, ARPHRD_IEEE802154,
- ARPHRD_VOID, ARPHRD_NONE};
+ ARPHRD_FCFABRIC, ARPHRD_IEEE80211, ARPHRD_IEEE80211_PRISM,
+ ARPHRD_IEEE80211_RADIOTAP, ARPHRD_PHONET, ARPHRD_PHONET_PIPE,
+ ARPHRD_IEEE802154, ARPHRD_VOID, ARPHRD_NONE};
static const char *const netdev_lock_name[] =
{"_xmit_NETROM", "_xmit_ETHER", "_xmit_EETHER", "_xmit_AX25",
@@ -317,10 +317,9 @@ static const char *const netdev_lock_name[] =
"_xmit_BIF", "_xmit_SIT", "_xmit_IPDDP", "_xmit_IPGRE",
"_xmit_PIMREG", "_xmit_HIPPI", "_xmit_ASH", "_xmit_ECONET",
"_xmit_IRDA", "_xmit_FCPP", "_xmit_FCAL", "_xmit_FCPL",
- "_xmit_FCFABRIC", "_xmit_IEEE802_TR", "_xmit_IEEE80211",
- "_xmit_IEEE80211_PRISM", "_xmit_IEEE80211_RADIOTAP", "_xmit_PHONET",
- "_xmit_PHONET_PIPE", "_xmit_IEEE802154",
- "_xmit_VOID", "_xmit_NONE"};
+ "_xmit_FCFABRIC", "_xmit_IEEE80211", "_xmit_IEEE80211_PRISM",
+ "_xmit_IEEE80211_RADIOTAP", "_xmit_PHONET", "_xmit_PHONET_PIPE",
+ "_xmit_IEEE802154", "_xmit_VOID", "_xmit_NONE"};
static struct lock_class_key netdev_xmit_lock_key[ARRAY_SIZE(netdev_lock_type)];
static struct lock_class_key netdev_addr_lock_key[ARRAY_SIZE(netdev_lock_type)];
@@ -1617,10 +1616,14 @@ int dev_forward_skb(struct net_device *dev, struct sk_buff *skb)
return NET_RX_DROP;
}
skb->skb_iif = 0;
- skb_set_dev(skb, dev);
+ skb->dev = dev;
+ skb_dst_drop(skb);
skb->tstamp.tv64 = 0;
skb->pkt_type = PACKET_HOST;
skb->protocol = eth_type_trans(skb, dev);
+ skb->mark = 0;
+ secpath_reset(skb);
+ nf_reset(skb);
return netif_rx(skb);
}
EXPORT_SYMBOL_GPL(dev_forward_skb);
@@ -1672,10 +1675,9 @@ static void dev_queue_xmit_nit(struct sk_buff *skb, struct net_device *dev)
if (skb_network_header(skb2) < skb2->data ||
skb2->network_header > skb2->tail) {
- if (net_ratelimit())
- pr_crit("protocol %04x is buggy, dev %s\n",
- ntohs(skb2->protocol),
- dev->name);
+ net_crit_ratelimited("protocol %04x is buggy, dev %s\n",
+ ntohs(skb2->protocol),
+ dev->name);
skb_reset_network_header(skb2);
}
@@ -1869,36 +1871,6 @@ void netif_device_attach(struct net_device *dev)
}
EXPORT_SYMBOL(netif_device_attach);
-/**
- * skb_dev_set -- assign a new device to a buffer
- * @skb: buffer for the new device
- * @dev: network device
- *
- * If an skb is owned by a device already, we have to reset
- * all data private to the namespace a device belongs to
- * before assigning it a new device.
- */
-#ifdef CONFIG_NET_NS
-void skb_set_dev(struct sk_buff *skb, struct net_device *dev)
-{
- skb_dst_drop(skb);
- if (skb->dev && !net_eq(dev_net(skb->dev), dev_net(dev))) {
- secpath_reset(skb);
- nf_reset(skb);
- skb_init_secmark(skb);
- skb->mark = 0;
- skb->priority = 0;
- skb->nf_trace = 0;
- skb->ipvs_property = 0;
-#ifdef CONFIG_NET_SCHED
- skb->tc_index = 0;
-#endif
- }
- skb->dev = dev;
-}
-EXPORT_SYMBOL(skb_set_dev);
-#endif /* CONFIG_NET_NS */
-
static void skb_warn_bad_offload(const struct sk_buff *skb)
{
static const netdev_features_t null_features = 0;
@@ -2342,11 +2314,9 @@ EXPORT_SYMBOL(__skb_tx_hash);
static inline u16 dev_cap_txqueue(struct net_device *dev, u16 queue_index)
{
if (unlikely(queue_index >= dev->real_num_tx_queues)) {
- if (net_ratelimit()) {
- pr_warn("%s selects TX queue %d, but real number of TX queues is %d\n",
- dev->name, queue_index,
- dev->real_num_tx_queues);
- }
+ net_warn_ratelimited("%s selects TX queue %d, but real number of TX queues is %d\n",
+ dev->name, queue_index,
+ dev->real_num_tx_queues);
return 0;
}
return queue_index;
@@ -2588,17 +2558,15 @@ int dev_queue_xmit(struct sk_buff *skb)
}
}
HARD_TX_UNLOCK(dev, txq);
- if (net_ratelimit())
- pr_crit("Virtual device %s asks to queue packet!\n",
- dev->name);
+ net_crit_ratelimited("Virtual device %s asks to queue packet!\n",
+ dev->name);
} else {
/* Recursion is detected! It is possible,
* unfortunately
*/
recursion_alert:
- if (net_ratelimit())
- pr_crit("Dead loop on virtual device %s, fix it urgently!\n",
- dev->name);
+ net_crit_ratelimited("Dead loop on virtual device %s, fix it urgently!\n",
+ dev->name);
}
}
@@ -3079,9 +3047,8 @@ static int ing_filter(struct sk_buff *skb, struct netdev_queue *rxq)
struct Qdisc *q;
if (unlikely(MAX_RED_LOOP < ttl++)) {
- if (net_ratelimit())
- pr_warn("Redir loop detected Dropping packet (%d->%d)\n",
- skb->skb_iif, dev->ifindex);
+ net_warn_ratelimited("Redir loop detected Dropping packet (%d->%d)\n",
+ skb->skb_iif, dev->ifindex);
return TC_ACT_SHOT;
}
@@ -3541,10 +3508,16 @@ gro_result_t napi_skb_finish(gro_result_t ret, struct sk_buff *skb)
break;
case GRO_DROP:
- case GRO_MERGED_FREE:
kfree_skb(skb);
break;
+ case GRO_MERGED_FREE:
+ if (NAPI_GRO_CB(skb)->free == NAPI_GRO_FREE_STOLEN_HEAD)
+ kmem_cache_free(skbuff_head_cache, skb);
+ else
+ __kfree_skb(skb);
+ break;
+
case GRO_HELD:
case GRO_MERGED:
break;
@@ -3629,7 +3602,7 @@ gro_result_t napi_frags_finish(struct napi_struct *napi, struct sk_buff *skb,
}
EXPORT_SYMBOL(napi_frags_finish);
-struct sk_buff *napi_frags_skb(struct napi_struct *napi)
+static struct sk_buff *napi_frags_skb(struct napi_struct *napi)
{
struct sk_buff *skb = napi->skb;
struct ethhdr *eth;
@@ -3664,7 +3637,6 @@ struct sk_buff *napi_frags_skb(struct napi_struct *napi)
out:
return skb;
}
-EXPORT_SYMBOL(napi_frags_skb);
gro_result_t napi_gro_frags(struct napi_struct *napi)
{
@@ -4618,9 +4590,9 @@ void dev_set_rx_mode(struct net_device *dev)
*
* Get the combination of flag bits exported through APIs to userspace.
*/
-unsigned dev_get_flags(const struct net_device *dev)
+unsigned int dev_get_flags(const struct net_device *dev)
{
- unsigned flags;
+ unsigned int flags;
flags = (dev->flags & ~(IFF_PROMISC |
IFF_ALLMULTI |
generated by cgit v1.2.3 (git 2.39.0) at 2025-01-26 19:24:00 +0300