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Defined in 1 files as a function:

Referenced in 4 files:

Smatch caller information:

net/ipv4/tcp_ipv4.c ip_dont_fragment() -> ip_mtu_locked()

Type Parameter Key Value
PARAM_VALUE 0 dst 4096-ptr_max
BUF_SIZE 0 dst (-1),144
BUF_SIZE 0 dst (-1),144
DATA_SOURCE 0 dst $1
PREEMPT_ADD
RX_PATH
TASK_NOT_RUNNING
HALF_LOCKED2 &sk->sk_lock.slock

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

Type Parameter Key Value
PARAM_VALUE 0 dst 4096-ptr_max
CAPPED_DATA 0 dst->dev_rcu 1
DATA_SOURCE 0 dst $0
RX_PATH
TASK_NOT_RUNNING
LOCK2 rcu_read
HALF_LOCKED2 &pool->lock
HALF_LOCKED2 bh

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

Type Parameter Key Value
PARAM_VALUE 0 dst 4096-ptr_max
CAPPED_DATA 0 dst->dev_rcu 1
DATA_SOURCE 0 dst $0
RX_PATH
TASK_NOT_RUNNING
LOCK2 rcu_read
HALF_LOCKED2 &pool->lock
HALF_LOCKED2 bh

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

Type Parameter Key Value
PARAM_VALUE 0 dst 4096-ptr_max
CAPPED_DATA 0 dst->dev_rcu 1
DATA_SOURCE 0 dst $0
LOCK2 rcu_read

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

Type Parameter Key Value
PARAM_VALUE 0 dst 4096-ptr_max
CAPPED_DATA 0 dst->dev_rcu 1
DATA_SOURCE 0 dst $0
LOCK2 rcu_read

drivers/net/ppp/pptp.c ip_dont_fragment() -> ip_mtu_locked()

Type Parameter Key Value
PARAM_VALUE 0 dst 4096-ptr_max
DATA_SOURCE 0 dst $1
RX_PATH
TASK_NOT_RUNNING
HALF_LOCKED2 &pch->downl
HALF_LOCKED2 &pchb->downl
HALF_LOCKED2 &ppp->wlock
HALF_LOCKED2 bh
HALF_LOCKED2 rcu_read
TYPE_LOCK (struct channel)->downl

net/ipv4/ip_tunnel_core.c iptunnel_xmit() -> ip_mtu_locked()

Type Parameter Key Value
PARAM_VALUE 0 dst 4096-ptr_max
PREEMPT_ADD
RX_PATH
TASK_NOT_RUNNING
HALF_LOCKED2 bh
HALF_LOCKED2 rcu_read

net/sctp/protocol.c ip_dont_fragment() -> ip_mtu_locked()

Type Parameter Key Value
PARAM_VALUE 0 dst 4096-ptr_max
DATA_SOURCE 0 dst $1
RX_PATH
TASK_NOT_RUNNING

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

Type Parameter Key Value
PARAM_VALUE 0 dst 4096-ptr_max
CAPPED_DATA 0 dst->dev_rcu 1
DATA_SOURCE 0 dst $0
PREEMPT_ADD
RX_PATH
TASK_NOT_RUNNING
LOCK2 rcu_read

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

Type Parameter Key Value
PARAM_VALUE 0 dst 4096-ptr_max
CAPPED_DATA 0 dst->dev_rcu 1
DATA_SOURCE 0 dst $0
PREEMPT_ADD
RX_PATH
TASK_NOT_RUNNING
LOCK2 rcu_read

net/bridge/br_netfilter_hooks.c ip_dst_mtu_maybe_forward() -> ip_mtu_locked()

Type Parameter Key Value
PARAM_VALUE 0 dst 4096-ptr_max
CAPPED_DATA 0 dst->dev_rcu 1
DATA_SOURCE 0 dst $0
RX_PATH
TASK_NOT_RUNNING
LOCK2 rcu_read
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 sk

net/bridge/br_netfilter_hooks.c ip_dst_mtu_maybe_forward() -> ip_mtu_locked()

Type Parameter Key Value
PARAM_VALUE 0 dst 4096-ptr_max
CAPPED_DATA 0 dst->dev_rcu 1
DATA_SOURCE 0 dst $0
RX_PATH
TASK_NOT_RUNNING
LOCK2 rcu_read
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 sk

net/netfilter/nf_flow_table_ip.c nf_flow_tunnel_ipip_push() -> ip_mtu_locked()

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

net/ipv4/route.c __ip_rt_update_pmtu() -> ip_mtu_locked()

Type Parameter Key Value
BUF_SIZE 0 dst 144
PREEMPT_ADD
RX_PATH
TASK_NOT_RUNNING
HALF_LOCKED2 &sk->sk_lock.slock
HALF_LOCKED2 rcu_read

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

Type Parameter Key Value
PARAM_VALUE 0 dst 4096-ptr_max
BUF_SIZE 0 dst (-1)-s32max
BUF_SIZE 0 dst (-1)-s32max
CAPPED_DATA 0 dst->dev_rcu 1
DATA_SOURCE 0 dst $0
PREEMPT_ADD
RX_PATH
TASK_NOT_RUNNING
LOCK2 rcu_read
HALF_LOCKED2 &hba->net_dev_lock
HALF_LOCKED2 &ps->sk_lock
HALF_LOCKED2 bh
HALF_LOCKED2 global &rx_queue_mutex
HALF_LOCKED2 sk

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

Type Parameter Key Value
PARAM_VALUE 0 dst 4096-ptr_max
BUF_SIZE 0 dst (-1)-s32max
BUF_SIZE 0 dst (-1)-s32max
CAPPED_DATA 0 dst->dev_rcu 1
DATA_SOURCE 0 dst $0
PREEMPT_ADD
RX_PATH
TASK_NOT_RUNNING
LOCK2 rcu_read
HALF_LOCKED2 &hba->net_dev_lock
HALF_LOCKED2 &ps->sk_lock
HALF_LOCKED2 bh
HALF_LOCKED2 global &rx_queue_mutex
HALF_LOCKED2 sk

net/ipv4/ip_output.c ip_dont_fragment() -> ip_mtu_locked()

Type Parameter Key Value
DATA_SOURCE 0 dst $1
PREEMPT_ADD
RX_PATH
TASK_NOT_RUNNING
HALF_LOCKED2 &sk->sk_lock.slock
HALF_LOCKED2 rcu_read
HALF_LOCKED2 sk

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

Type Parameter Key Value
PARAM_VALUE 0 dst 4096-ptr_max
CAPPED_DATA 0 dst->dev_rcu 1
DATA_SOURCE 0 dst $0
PREEMPT_ADD
RX_PATH
TASK_NOT_RUNNING
LOCK2 rcu_read
HALF_LOCKED2 &sk->sk_callback_lock
HALF_LOCKED2 &sk->sk_lock.slock
HALF_LOCKED2 sk

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

Type Parameter Key Value
PARAM_VALUE 0 dst 4096-ptr_max
CAPPED_DATA 0 dst->dev_rcu 1
DATA_SOURCE 0 dst $0
PREEMPT_ADD
RX_PATH
TASK_NOT_RUNNING
LOCK2 rcu_read
HALF_LOCKED2 &sk->sk_callback_lock
HALF_LOCKED2 &sk->sk_lock.slock
HALF_LOCKED2 sk