dst_mtu identifier - Linux source code next-20260811

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linux

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FIXME
- FIXME
  - next-20260811

Defined in 1 files as a function:

include/net/dst.h, line 217 (as a function)

Referenced in 27 files:

Smatch caller information:

drivers/net/gtp.c gtp_build_skb_outer_ip4() -> dst_mtu()

Type	Parameter	Key	Value
PARAM_VALUE	0	dst	4096-ptr_max
RX_PATH
TASK_NOT_RUNNING
LOCK2		rcu_read
HALF_LOCKED2		&txq->_xmit_lock
HALF_LOCKED2		bh
HALF_LOCKED2		flags

drivers/net/gtp.c gtp_build_skb_outer_ip4() -> dst_mtu()

Type	Parameter	Key	Value
PARAM_VALUE	0	dst	4096-ptr_max
RX_PATH
TASK_NOT_RUNNING
LOCK2		rcu_read
HALF_LOCKED2		&txq->_xmit_lock
HALF_LOCKED2		bh
HALF_LOCKED2		flags

drivers/net/gtp.c gtp_build_skb_outer_ip6() -> dst_mtu()

Type	Parameter	Key	Value
PARAM_VALUE	0	dst	4096-ptr_max
RX_PATH
TASK_NOT_RUNNING
LOCK2		rcu_read
HALF_LOCKED2		&txq->_xmit_lock
HALF_LOCKED2		bh
HALF_LOCKED2		flags

net/l2tp/l2tp_eth.c l2tp_tunnel_dst_mtu() -> dst_mtu()

Type	Parameter	Key	Value
PARAM_VALUE	0	dst	4096-ptr_max
DATA_SOURCE	0	dst	r sk_dst_get
RX_PATH
TASK_NOT_RUNNING
HALF_LOCKED2		&dev->lock
HALF_LOCKED2		&devlink->lock
HALF_LOCKED2		&net->xfrm.xfrm_cfg_mutex
HALF_LOCKED2		global &audit_cmd_mutex.lock
HALF_LOCKED2		global &cb_lock
HALF_LOCKED2		global &crypto_cfg_mutex
HALF_LOCKED2		global &dpll_lock
HALF_LOCKED2		global &hwsim_phys_lock
HALF_LOCKED2		global &net_dm_mutex
HALF_LOCKED2		global &rtnl_mutex
HALF_LOCKED2		global &rx_queue_mutex
HALF_LOCKED2		rcu_read

net/ipv6/ip6_gre.c ip6erspan_tunnel_xmit() -> dst_mtu()

Type	Parameter	Key	Value
PARAM_VALUE	0	dst	4096-ptr_max
DATA_SOURCE	0	dst	r skb_dst
RX_PATH
TASK_NOT_RUNNING
HALF_LOCKED2		&dev->tx_global_lock
HALF_LOCKED2		&txq->_xmit_lock
HALF_LOCKED2		bh
HALF_LOCKED2		flags
HALF_LOCKED2		rcu_read

drivers/scsi/cxgbi/cxgb4i/cxgb4i.c init_act_open() -> dst_mtu()

Type	Parameter	Key	Value
PARAM_VALUE	0	dst	4096-ptr_max
PARAM_VALUE	0	dst->ops	4096-ptr_max
PARAM_VALUE	0	dst->ops->neigh_lookup	4096-ptr_max
PARAM_VALUE	0	dst->xfrm	0
RX_PATH
TASK_NOT_RUNNING
LOCK2		global &rx_queue_mutex
HALF_LOCKED2		&pool->lock
HALF_LOCKED2		global &audit_cmd_mutex.lock
HALF_LOCKED2		global &hwsim_phys_lock
HALF_LOCKED2		global &rtnl_mutex
HALF_LOCKED2		rcu_read

net/sctp/transport.c sctp_dst_mtu() -> dst_mtu()

Type	Parameter	Key	Value
PARAM_VALUE	0	dst	1-u64max
DATA_SOURCE	0	dst	$0
PREEMPT_ADD
RX_PATH
TASK_NOT_RUNNING

drivers/net/ppp/pptp.c pptp_connect() -> dst_mtu()

Type	Parameter	Key	Value
PARAM_VALUE	0	dst	0-ptr_max
RX_PATH
TASK_NOT_RUNNING
LOCK2		sk

net/netfilter/ipvs/ip_vs_core.c ip_vs_in_icmp() -> dst_mtu()

Type	Parameter	Key	Value
RX_PATH
TASK_NOT_RUNNING
HALF_LOCKED2		rcu_read

net/ipv6/xfrm6_output.c __xfrm6_output() -> dst_mtu()

Type	Parameter	Key	Value
PARAM_VALUE	0	dst	0,2-u64max
RX_PATH
TASK_NOT_RUNNING
HALF_LOCKED2		bh
HALF_LOCKED2		rcu_read

net/ipv6/xfrm6_output.c ip6_skb_dst_mtu() -> dst_mtu()

Type	Parameter	Key	Value
PARAM_VALUE	0	dst	0,2-u64max
DATA_SOURCE	0	dst	r skb_dst
RX_PATH
TASK_NOT_RUNNING
HALF_LOCKED2		bh
HALF_LOCKED2		rcu_read

net/netfilter/ipvs/ip_vs_xmit.c __ip_vs_get_out_rt() -> dst_mtu()

Type	Parameter	Key	Value
RX_PATH
TASK_NOT_RUNNING

net/netfilter/ipvs/ip_vs_xmit.c __ip_vs_get_out_rt() -> dst_mtu()

Type	Parameter	Key	Value
RX_PATH
TASK_NOT_RUNNING

net/netfilter/ipvs/ip_vs_xmit.c __ip_vs_get_out_rt_v6() -> dst_mtu()

Type	Parameter	Key	Value
PARAM_VALUE	0	dst->dev	0,4096-ptr_max
RX_PATH
TASK_NOT_RUNNING

net/netfilter/ipvs/ip_vs_xmit.c __ip_vs_get_out_rt_v6() -> dst_mtu()

Type	Parameter	Key	Value
PARAM_VALUE	0	dst->dev	0,4096-ptr_max
RX_PATH
TASK_NOT_RUNNING

net/rxrpc/peer_object.c rxrpc_assess_MTU_size() -> dst_mtu()

Type	Parameter	Key	Value
PARAM_VALUE	0	dst	0-ptr_max
PARAM_VALUE	0	dst->error	0
BUF_SIZE	0	dst	(-1)-0,144,152
BUF_SIZE	0	dst	(-1)-0,144,152
RX_PATH
TASK_NOT_RUNNING

drivers/infiniband/hw/cxgb4/cm.c import_ep() -> dst_mtu()

Type	Parameter	Key	Value
PARAM_VALUE	0	dst	4096-ptr_max
PARAM_VALUE	0	dst->error	0
PARAM_VALUE	0	dst->ops	4096-ptr_max
PARAM_VALUE	0	dst->ops->neigh_lookup	4096-ptr_max
PARAM_VALUE	0	dst->xfrm	0
BUF_SIZE	0	dst	(-1)-0,144,152
BUF_SIZE	0	dst	(-1)-0,144,152
DATA_SOURCE	0	dst	$3
RX_PATH
TASK_NOT_RUNNING
LOCK2		rcu_read

net/ipv4/ip_tunnel_core.c skb_tunnel_check_pmtu() -> dst_mtu()

Type	Parameter	Key	Value
PARAM_VALUE	0	dst	1-ptr_max
BUF_SIZE	0	dst	(-1)-0,144,152
BUF_SIZE	0	dst	(-1)-0,144,152
DATA_SOURCE	0	dst	$1
RX_PATH
TASK_NOT_RUNNING
LOCK2		rcu_read
HALF_LOCKED2		bh
HALF_LOCKED2		flags

net/ipv6/ip6_vti.c vti6_xmit() -> dst_mtu()

Type	Parameter	Key	Value
PARAM_VALUE	0	dst	4096-ptr_max
PARAM_VALUE	0	dst->dev->refcnt_tracker.list.next->next	4096-ptr_max
PARAM_VALUE	0	dst->dev->refcnt_tracker.list.next->prev	4096-ptr_max
PARAM_VALUE	0	dst->dev->refcnt_tracker.quarantine.prev	4096-ptr_max
PARAM_VALUE	0	dst->dev->refcnt_tracker.quarantine.prev->next	4096-ptr_max
PARAM_VALUE	0	dst->dev->refcnt_tracker.quarantine.prev->next->next	4096-ptr_max
PARAM_VALUE	0	dst->ops->pcpuc_entries.lock.dep_map->name	0-255
PARAM_VALUE	0	dst->ops->pcpuc_entries.lock.owner	(-1)
PARAM_VALUE	0	dst->ops->pcpuc_entries.lock.owner_cpu	u32max
PARAM_VALUE	0	dst->xfrm	4096-ptr_max
PARAM_VALUE	0	dst->xfrm->props.family	10
PARAM_VALUE	0	dst->xfrm->props.mode	1
BUF_SIZE	0	dst	(-1)-s32max
BUF_SIZE	0	dst	(-1)-s32max
CAPPED_DATA	0	dst	1
DATA_SOURCE	0	dst	r xfrm_lookup_route
BIT_INFO	0	dst->flags	0x0,0xffbf
RX_PATH
TASK_NOT_RUNNING
HALF_LOCKED2		&txq->_xmit_lock
HALF_LOCKED2		bh
HALF_LOCKED2		flags
HALF_LOCKED2		rcu_read

net/xfrm/xfrm_output.c ip6_skb_dst_mtu() -> dst_mtu()

Type	Parameter	Key	Value
PARAM_VALUE	0	dst	0,2-u64max
DATA_SOURCE	0	dst	r skb_dst
PREEMPT_ADD
RX_PATH
TASK_NOT_RUNNING

net/xfrm/xfrm_output.c xfrm4_tunnel_check_size() -> dst_mtu()

Type	Parameter	Key	Value
PARAM_VALUE	0	dst	0,2-u64max
PREEMPT_ADD
RX_PATH
TASK_NOT_RUNNING

net/xfrm/xfrm_output.c xfrm6_tunnel_check_size() -> dst_mtu()

Type	Parameter	Key	Value
PARAM_VALUE	0	dst	0,2-u64max
DATA_SOURCE	0	dst	r skb_dst
PREEMPT_ADD
RX_PATH
TASK_NOT_RUNNING

net/xfrm/xfrm_interface_core.c xfrmi_xmit2() -> dst_mtu()

Type	Parameter	Key	Value
PARAM_VALUE	0	dst	4096-ptr_max
PARAM_VALUE	0	dst->dev->refcnt_tracker.list.next->next	4096-ptr_max
PARAM_VALUE	0	dst->dev->refcnt_tracker.list.next->prev	4096-ptr_max
PARAM_VALUE	0	dst->dev->refcnt_tracker.quarantine.prev	4096-ptr_max
PARAM_VALUE	0	dst->dev->refcnt_tracker.quarantine.prev->next	4096-ptr_max
PARAM_VALUE	0	dst->dev->refcnt_tracker.quarantine.prev->next->next	4096-ptr_max
PARAM_VALUE	0	dst->dst_trace_seq.counter	s32min-s32max
PARAM_VALUE	0	dst->ops	4096-ptr_max
PARAM_VALUE	0	dst->ops->pcpuc_entries.lock.dep_map->name	0-255
PARAM_VALUE	0	dst->xfrm	4096-ptr_max
BUF_SIZE	0	dst	(-1)-0,144,152
BUF_SIZE	0	dst	(-1)-0,144,152
CAPPED_DATA	0	dst	1
DATA_SOURCE	0	dst	r xfrm_lookup_with_ifid
RX_PATH
TASK_NOT_RUNNING
HALF_LOCKED2		&txq->_xmit_lock
HALF_LOCKED2		bh
HALF_LOCKED2		flags
HALF_LOCKED2		rcu_read

net/sctp/output.c sctp_dst_mtu() -> dst_mtu()

Type	Parameter	Key	Value
PARAM_VALUE	0	dst	0,4096-ptr_max
PARAM_VALUE	0	dst->obsolete	0
DATA_SOURCE	0	dst	$0
RX_PATH
TASK_NOT_RUNNING

drivers/scsi/cxgbi/cxgb3i/cxgb3i.c init_act_open() -> dst_mtu()

Type	Parameter	Key	Value
PARAM_VALUE	0	dst	4096-ptr_max
PARAM_VALUE	0	dst->ops	4096-ptr_max
PARAM_VALUE	0	dst->ops->neigh_lookup	4096-ptr_max
RX_PATH
TASK_NOT_RUNNING
LOCK2		global &rx_queue_mutex
HALF_LOCKED2		&pool->lock
HALF_LOCKED2		global &audit_cmd_mutex.lock
HALF_LOCKED2		global &hwsim_phys_lock
HALF_LOCKED2		global &rtnl_mutex
HALF_LOCKED2		rcu_read

drivers/net/wireguard/device.c wg_xmit() -> dst_mtu()

Type	Parameter	Key	Value
PARAM_VALUE	0	dst	0,2-u64max
RX_PATH
TASK_NOT_RUNNING
HALF_LOCKED2		&txq->_xmit_lock
HALF_LOCKED2		bh
HALF_LOCKED2		flags
HALF_LOCKED2		rcu_read

net/ipv4/ip_tunnel.c tnl_update_pmtu() -> dst_mtu()

Type	Parameter	Key	Value
PARAM_VALUE	0	dst	4096-ptr_max
RX_PATH
TASK_NOT_RUNNING
HALF_LOCKED2		&dev->tx_global_lock
HALF_LOCKED2		bh
HALF_LOCKED2		flags
HALF_LOCKED2		rcu_read

net/ipv4/ip_tunnel.c tnl_update_pmtu() -> dst_mtu()

Type	Parameter	Key	Value
PARAM_VALUE	0	dst	0,2-u64max
RX_PATH
TASK_NOT_RUNNING
HALF_LOCKED2		&dev->tx_global_lock
HALF_LOCKED2		bh
HALF_LOCKED2		flags
HALF_LOCKED2		rcu_read

net/ipv4/ip_tunnel.c tnl_update_pmtu() -> dst_mtu()

Type	Parameter	Key	Value
PARAM_VALUE	0	dst	0,2-u64max
RX_PATH
TASK_NOT_RUNNING
HALF_LOCKED2		&dev->tx_global_lock
HALF_LOCKED2		bh
HALF_LOCKED2		flags
HALF_LOCKED2		rcu_read

net/l2tp/l2tp_ppp.c l2tp_tunnel_dst_mtu() -> dst_mtu()

Type	Parameter	Key	Value
PARAM_VALUE	0	dst	4096-ptr_max
DATA_SOURCE	0	dst	r sk_dst_get
RX_PATH
TASK_NOT_RUNNING
LOCK2		&ps->sk_lock
LOCK2		sk
TYPE_LOCK		(struct pppol2tp_session)->sk_lock

drivers/net/ethernet/broadcom/cnic.c cnic_get_route() -> dst_mtu()

Type	Parameter	Key	Value
PARAM_VALUE	0	dst	4096-ptr_max
PARAM_VALUE	0	dst->dev	4096-ptr_max
PARAM_VALUE	0	dst->error	s16min-s16max
RX_PATH
TASK_NOT_RUNNING
LOCK2		&hba->net_dev_lock
LOCK2		global &rx_queue_mutex
HALF_LOCKED2		global &audit_cmd_mutex.lock
HALF_LOCKED2		global &hwsim_phys_lock
HALF_LOCKED2		global &rtnl_mutex
HALF_LOCKED2		rcu_read
TYPE_LOCK		(struct bnx2i_hba)->net_dev_lock

net/ipv4/ip_vti.c vti_xmit() -> dst_mtu()

Type	Parameter	Key	Value
PARAM_VALUE	0	dst	4096-ptr_max
PARAM_VALUE	0	dst->dev->refcnt_tracker.list.next->next	4096-ptr_max
PARAM_VALUE	0	dst->dev->refcnt_tracker.list.next->prev	4096-ptr_max
PARAM_VALUE	0	dst->dev->refcnt_tracker.quarantine.prev	4096-ptr_max
PARAM_VALUE	0	dst->dev->refcnt_tracker.quarantine.prev->next	4096-ptr_max
PARAM_VALUE	0	dst->dev->refcnt_tracker.quarantine.prev->next->next	4096-ptr_max
PARAM_VALUE	0	dst->ops->pcpuc_entries.lock.dep_map->name	0-255
PARAM_VALUE	0	dst->ops->pcpuc_entries.lock.owner	(-1)
PARAM_VALUE	0	dst->ops->pcpuc_entries.lock.owner_cpu	u32max
PARAM_VALUE	0	dst->xfrm	4096-ptr_max
PARAM_VALUE	0	dst->xfrm->props.family	2
PARAM_VALUE	0	dst->xfrm->props.mode	1
BUF_SIZE	0	dst	(-1)-s32max
BUF_SIZE	0	dst	(-1)-s32max
CAPPED_DATA	0	dst	1
DATA_SOURCE	0	dst	r xfrm_lookup_route
BIT_INFO	0	dst->flags	0x0,0xffbf
RX_PATH
TASK_NOT_RUNNING
HALF_LOCKED2		&txq->_xmit_lock
HALF_LOCKED2		bh
HALF_LOCKED2		flags
HALF_LOCKED2		rcu_read

net/ipv6/ip6_output.c ip6_skb_dst_mtu() -> dst_mtu()

Type	Parameter	Key	Value
PARAM_VALUE	0	dst	0,2-u64max
DATA_SOURCE	0	dst	r skb_dst
PREEMPT_ADD
RX_PATH
TASK_NOT_RUNNING

net/netfilter/xt_TCPMSS.c tcpmss_mangle_packet() -> dst_mtu()

Type	Parameter	Key	Value
PARAM_VALUE	0	dst	0,2-u64max
RX_PATH
TASK_NOT_RUNNING
HALF_LOCKED2		&table->lock
HALF_LOCKED2		bh

net/netfilter/xt_TCPMSS.c tcpmss_reverse_mtu() -> dst_mtu()

Type	Parameter	Key	Value
PARAM_VALUE	0	dst	1-ptr_max
RX_PATH
TASK_NOT_RUNNING
HALF_LOCKED2		&table->lock
HALF_LOCKED2		bh

net/netfilter/nf_flow_table_ip.c nf_flow_tunnel_ip6ip6_push() -> dst_mtu()

Type	Parameter	Key	Value
PARAM_VALUE	0	dst	4096-ptr_max
PARAM_VALUE	0	dst->dev	4096-ptr_max
RX_PATH
TASK_NOT_RUNNING
HALF_LOCKED2		rcu_read

net/xfrm/xfrm_policy.c xfrm_bundle_ok() -> dst_mtu()

Type	Parameter	Key	Value
RX_PATH
TASK_NOT_RUNNING
HALF_LOCKED2		&sk->sk_lock.slock
HALF_LOCKED2		rcu_read

net/xfrm/xfrm_policy.c xfrm_bundle_ok() -> dst_mtu()

Type	Parameter	Key	Value
PARAM_VALUE	0	dst	4096-ptr_max
PARAM_VALUE	0	dst->obsolete	0
RX_PATH
TASK_NOT_RUNNING
HALF_LOCKED2		&sk->sk_lock.slock
HALF_LOCKED2		rcu_read

net/xfrm/xfrm_policy.c xfrm_init_pmtu() -> dst_mtu()

Type	Parameter	Key	Value
PREEMPT_ADD
RX_PATH
TASK_NOT_RUNNING
HALF_LOCKED2		bh

net/xfrm/xfrm_policy.c xfrm_init_pmtu() -> dst_mtu()

Type	Parameter	Key	Value
PREEMPT_ADD
RX_PATH
TASK_NOT_RUNNING
HALF_LOCKED2		bh

net/xfrm/xfrm_policy.c xfrm_mtu() -> dst_mtu()

Type	Parameter	Key	Value
BUF_SIZE	0	dst	(-1)-s32max
RX_PATH
TASK_NOT_RUNNING
HALF_LOCKED2		&hba->net_dev_lock
HALF_LOCKED2		&ps->sk_lock
HALF_LOCKED2		bh
HALF_LOCKED2		global &rx_queue_mutex
HALF_LOCKED2		rcu_read
HALF_LOCKED2		sk

drivers/target/iscsi/cxgbit/cxgbit_cm.c cxgbit_offload_init() -> dst_mtu()

Type	Parameter	Key	Value
PARAM_VALUE	0	dst	4096-ptr_max
PARAM_VALUE	0	dst->error	0
PARAM_VALUE	0	dst->ops	4096-ptr_max
PARAM_VALUE	0	dst->ops->neigh_lookup	4096-ptr_max
PARAM_VALUE	0	dst->xfrm	0
BUF_SIZE	0	dst	(-1)-0,144,152
BUF_SIZE	0	dst	(-1)-0,144,152
DATA_SOURCE	0	dst	$4
RX_PATH
TASK_NOT_RUNNING
LOCK2		rcu_read
HALF_LOCKED2		&ni->dev_lock
HALF_LOCKED2		bh

net/netfilter/nft_rt.c get_tcpmss() -> dst_mtu()

Type	Parameter	Key	Value
PARAM_VALUE	0	dst	0,2-u64max
DATA_SOURCE	0	dst	$1

net/netfilter/nft_rt.c get_tcpmss() -> dst_mtu()

Type	Parameter	Key	Value
PARAM_VALUE	0	dst	1-ptr_max
PARAM_VALUE	0	dst->error	0

net/ipv4/tcp_output.c tcp_connect_init() -> dst_mtu()

Type	Parameter	Key	Value
RX_PATH
TASK_NOT_RUNNING
HALF_LOCKED2		sk
HALF_LOCKED2		sk

net/ipv4/tcp_output.c tcp_current_mss() -> dst_mtu()

Type	Parameter	Key	Value
PARAM_VALUE	0	dst	1-u64max
PREEMPT_ADD
RX_PATH
TASK_NOT_RUNNING
HALF_LOCKED2		&sk->sk_lock.slock