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Defined in 1 files as a function:

Referenced in 4 files:

Smatch caller information:

net/ipv4/ip_forward.c ip_forward() -> ip_dst_mtu_maybe_forward()

Type Parameter Key Value
PARAM_VALUE 1 forwarding 1
RX_PATH
TASK_NOT_RUNNING
HALF_LOCKED2 bh
HALF_LOCKED2 rcu_read

net/netfilter/nf_flow_table_core.c flow_offload_fill_route() -> ip_dst_mtu_maybe_forward()

Type Parameter Key Value
PARAM_VALUE 1 forwarding 1
DATA_SOURCE 0 dst r nft_route_dst_fetch

net/xfrm/xfrm_output.c ip_skb_dst_mtu() -> ip_dst_mtu_maybe_forward()

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/bridge/br_netfilter_hooks.c ip_skb_dst_mtu() -> ip_dst_mtu_maybe_forward()

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 &net->ipv4.mfc_mutex
HALF_LOCKED2 &net->ipv6.mfc_mutex
HALF_LOCKED2 &sk->sk_callback_lock
HALF_LOCKED2 &sk->sk_lock.slock
HALF_LOCKED2 bh
HALF_LOCKED2 rcu_read
HALF_LOCKED2 sk

net/ipv4/route.c ipv4_mtu() -> ip_dst_mtu_maybe_forward()

Type Parameter Key Value
PARAM_VALUE 0 dst->dev_rcu->ndisc_ops->parse_options 4096-ptr_max
PARAM_VALUE 1 forwarding 0
BUF_SIZE 0 dst (-1)-s32max
BUF_SIZE 0 dst (-1)-s32max
DATA_SOURCE 0 dst $0
PREEMPT_ADD
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

net/ipv4/ip_output.c ip_skb_dst_mtu() -> ip_dst_mtu_maybe_forward()

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
HALF_LOCKED2 &sk->sk_callback_lock
HALF_LOCKED2 &sk->sk_lock.slock
HALF_LOCKED2 sk