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-rw-r--r--include/net/ip6_tunnel.h14
-rw-r--r--include/net/ip_tunnels.h37
-rw-r--r--include/net/mac80211.h4
-rw-r--r--include/net/netfilter/nf_tables.h6
-rw-r--r--include/net/page_pool/types.h2
-rw-r--r--include/net/sch_generic.h33
-rw-r--r--include/net/udp_tunnel.h2
7 files changed, 84 insertions, 14 deletions
diff --git a/include/net/ip6_tunnel.h b/include/net/ip6_tunnel.h
index 120db2865811..359b595f1df9 100644
--- a/include/net/ip6_tunnel.h
+++ b/include/net/ip6_tunnel.h
@@ -156,6 +156,18 @@ static inline void ip6tunnel_xmit(struct sock *sk, struct sk_buff *skb,
{
int pkt_len, err;
+ if (unlikely(dev_recursion_level() > IP_TUNNEL_RECURSION_LIMIT)) {
+ if (dev) {
+ net_crit_ratelimited("Dead loop on virtual device %s, fix it urgently!\n",
+ dev->name);
+ DEV_STATS_INC(dev, tx_errors);
+ }
+ kfree_skb(skb);
+ return;
+ }
+
+ dev_xmit_recursion_inc();
+
memset(skb->cb, 0, sizeof(struct inet6_skb_parm));
IP6CB(skb)->flags = ip6cb_flags;
pkt_len = skb->len - skb_inner_network_offset(skb);
@@ -166,6 +178,8 @@ static inline void ip6tunnel_xmit(struct sock *sk, struct sk_buff *skb,
pkt_len = -1;
iptunnel_xmit_stats(dev, pkt_len);
}
+
+ dev_xmit_recursion_dec();
}
#endif
#endif
diff --git a/include/net/ip_tunnels.h b/include/net/ip_tunnels.h
index 4021e6a73e32..1f577a4f8ce9 100644
--- a/include/net/ip_tunnels.h
+++ b/include/net/ip_tunnels.h
@@ -27,6 +27,13 @@
#include <net/ip6_route.h>
#endif
+/* Recursion limit for tunnel xmit to detect routing loops.
+ * Unlike XMIT_RECURSION_LIMIT (8) used in the no-qdisc path, tunnel
+ * recursion involves route lookups and full IP output, consuming much
+ * more stack per level, so a lower limit is needed.
+ */
+#define IP_TUNNEL_RECURSION_LIMIT 4
+
/* Keep error state on tunnel for 30 sec */
#define IPTUNNEL_ERR_TIMEO (30*HZ)
@@ -658,13 +665,29 @@ static inline int iptunnel_pull_offloads(struct sk_buff *skb)
static inline void iptunnel_xmit_stats(struct net_device *dev, int pkt_len)
{
if (pkt_len > 0) {
- struct pcpu_sw_netstats *tstats = get_cpu_ptr(dev->tstats);
-
- u64_stats_update_begin(&tstats->syncp);
- u64_stats_add(&tstats->tx_bytes, pkt_len);
- u64_stats_inc(&tstats->tx_packets);
- u64_stats_update_end(&tstats->syncp);
- put_cpu_ptr(tstats);
+ if (dev->pcpu_stat_type == NETDEV_PCPU_STAT_DSTATS) {
+ struct pcpu_dstats *dstats = get_cpu_ptr(dev->dstats);
+
+ u64_stats_update_begin(&dstats->syncp);
+ u64_stats_add(&dstats->tx_bytes, pkt_len);
+ u64_stats_inc(&dstats->tx_packets);
+ u64_stats_update_end(&dstats->syncp);
+ put_cpu_ptr(dstats);
+ return;
+ }
+ if (dev->pcpu_stat_type == NETDEV_PCPU_STAT_TSTATS) {
+ struct pcpu_sw_netstats *tstats = get_cpu_ptr(dev->tstats);
+
+ u64_stats_update_begin(&tstats->syncp);
+ u64_stats_add(&tstats->tx_bytes, pkt_len);
+ u64_stats_inc(&tstats->tx_packets);
+ u64_stats_update_end(&tstats->syncp);
+ put_cpu_ptr(tstats);
+ return;
+ }
+ pr_err_once("iptunnel_xmit_stats pcpu_stat_type=%d\n",
+ dev->pcpu_stat_type);
+ WARN_ON_ONCE(1);
return;
}
diff --git a/include/net/mac80211.h b/include/net/mac80211.h
index 7f9d96939a4e..adce2144a678 100644
--- a/include/net/mac80211.h
+++ b/include/net/mac80211.h
@@ -7407,7 +7407,9 @@ void ieee80211_report_wowlan_wakeup(struct ieee80211_vif *vif,
* @band: the band to transmit on
* @sta: optional pointer to get the station to send the frame to
*
- * Return: %true if the skb was prepared, %false otherwise
+ * Return: %true if the skb was prepared, %false otherwise.
+ * On failure, the skb is freed by this function; callers must not
+ * free it again.
*
* Note: must be called under RCU lock
*/
diff --git a/include/net/netfilter/nf_tables.h b/include/net/netfilter/nf_tables.h
index e2d2bfc1f989..ec8a8ec9c0aa 100644
--- a/include/net/netfilter/nf_tables.h
+++ b/include/net/netfilter/nf_tables.h
@@ -277,8 +277,6 @@ struct nft_userdata {
unsigned char data[];
};
-#define NFT_SET_ELEM_INTERNAL_LAST 0x1
-
/* placeholder structure for opaque set element backend representation. */
struct nft_elem_priv { };
@@ -288,7 +286,6 @@ struct nft_elem_priv { };
* @key: element key
* @key_end: closing element key
* @data: element data
- * @flags: flags
* @priv: element private data and extensions
*/
struct nft_set_elem {
@@ -304,7 +301,6 @@ struct nft_set_elem {
u32 buf[NFT_DATA_VALUE_MAXLEN / sizeof(u32)];
struct nft_data val;
} data;
- u32 flags;
struct nft_elem_priv *priv;
};
@@ -878,6 +874,8 @@ struct nft_elem_priv *nft_set_elem_init(const struct nft_set *set,
u64 timeout, u64 expiration, gfp_t gfp);
int nft_set_elem_expr_clone(const struct nft_ctx *ctx, struct nft_set *set,
struct nft_expr *expr_array[]);
+void nft_set_elem_expr_destroy(const struct nft_ctx *ctx,
+ struct nft_set_elem_expr *elem_expr);
void nft_set_elem_destroy(const struct nft_set *set,
const struct nft_elem_priv *elem_priv,
bool destroy_expr);
diff --git a/include/net/page_pool/types.h b/include/net/page_pool/types.h
index 0d453484a585..cdd95477af7a 100644
--- a/include/net/page_pool/types.h
+++ b/include/net/page_pool/types.h
@@ -247,7 +247,7 @@ struct page_pool {
/* User-facing fields, protected by page_pools_lock */
struct {
struct hlist_node list;
- u64 detach_time;
+ ktime_t detach_time;
u32 id;
} user;
};
diff --git a/include/net/sch_generic.h b/include/net/sch_generic.h
index d5d55cb21686..c3d657359a3d 100644
--- a/include/net/sch_generic.h
+++ b/include/net/sch_generic.h
@@ -716,6 +716,34 @@ void qdisc_destroy(struct Qdisc *qdisc);
void qdisc_put(struct Qdisc *qdisc);
void qdisc_put_unlocked(struct Qdisc *qdisc);
void qdisc_tree_reduce_backlog(struct Qdisc *qdisc, int n, int len);
+
+static inline void dev_reset_queue(struct net_device *dev,
+ struct netdev_queue *dev_queue,
+ void *_unused)
+{
+ struct Qdisc *qdisc;
+ bool nolock;
+
+ qdisc = rtnl_dereference(dev_queue->qdisc_sleeping);
+ if (!qdisc)
+ return;
+
+ nolock = qdisc->flags & TCQ_F_NOLOCK;
+
+ if (nolock)
+ spin_lock_bh(&qdisc->seqlock);
+ spin_lock_bh(qdisc_lock(qdisc));
+
+ qdisc_reset(qdisc);
+
+ spin_unlock_bh(qdisc_lock(qdisc));
+ if (nolock) {
+ clear_bit(__QDISC_STATE_MISSED, &qdisc->state);
+ clear_bit(__QDISC_STATE_DRAINING, &qdisc->state);
+ spin_unlock_bh(&qdisc->seqlock);
+ }
+}
+
#ifdef CONFIG_NET_SCHED
int qdisc_offload_dump_helper(struct Qdisc *q, enum tc_setup_type type,
void *type_data);
@@ -1429,6 +1457,11 @@ void mini_qdisc_pair_init(struct mini_Qdisc_pair *miniqp, struct Qdisc *qdisc,
void mini_qdisc_pair_block_init(struct mini_Qdisc_pair *miniqp,
struct tcf_block *block);
+static inline bool mini_qdisc_pair_inited(struct mini_Qdisc_pair *miniqp)
+{
+ return !!miniqp->p_miniq;
+}
+
void mq_change_real_num_tx(struct Qdisc *sch, unsigned int new_real_tx);
int sch_frag_xmit_hook(struct sk_buff *skb, int (*xmit)(struct sk_buff *skb));
diff --git a/include/net/udp_tunnel.h b/include/net/udp_tunnel.h
index d9c6d04bb3b5..fc1fc43345b5 100644
--- a/include/net/udp_tunnel.h
+++ b/include/net/udp_tunnel.h
@@ -52,7 +52,7 @@ int udp_sock_create6(struct net *net, struct udp_port_cfg *cfg,
static inline int udp_sock_create6(struct net *net, struct udp_port_cfg *cfg,
struct socket **sockp)
{
- return 0;
+ return -EPFNOSUPPORT;
}
#endif
generated by cgit v1.2.3 (git 2.0.4) at 2026-03-21 22:27:12 +0000