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Defined in 1 files as a function:

Referenced in 3 files:

Smatch caller information:

net/ipv4/tcp_offload.c tcp_gso_segment() -> gso_make_checksum()

Type Parameter Key Value
PARAM_VALUE 0 skb 4096-ptr_max
PARAM_VALUE 1 res 0-u16max
DATA_SOURCE 0 skb $0 [m]
CONSTRAINT 0 skb->data_len <=49
UNITS 0 skb unit_byte

net/ipv4/tcp_offload.c tcp_gso_segment() -> gso_make_checksum()

Type Parameter Key Value
PARAM_VALUE 0 skb 4096-ptr_max
PARAM_VALUE 1 res 0-u16max
DATA_SOURCE 0 skb $0 [m]
CONSTRAINT 0 skb->data_len <=49
UNITS 0 skb unit_byte

net/ipv4/udp_offload.c __skb_udp_tunnel_segment() -> gso_make_checksum()

Type Parameter Key Value
PARAM_VALUE 0 skb 4096-ptr_max
PARAM_VALUE 0 skb->cb 4096-ptr_max
PARAM_VALUE 1 res 0-u16max
CAPPED_DATA 0 skb->head 1
DATA_SOURCE 0 skb $0 [m]
CONSTRAINT 0 skb->data_len <=49
UNITS 0 skb unit_byte
LOCK2 rcu_read

net/ipv4/udp_offload.c __udp_gso_segment() -> gso_make_checksum()

Type Parameter Key Value
PARAM_VALUE 0 skb 4096-ptr_max
PARAM_VALUE 1 res 0-u16max
UNITS 0 skb unit_byte

net/ipv4/udp_offload.c __udp_gso_segment() -> gso_make_checksum()

Type Parameter Key Value
PARAM_VALUE 0 skb 4096-ptr_max
PARAM_VALUE 1 res 0-u16max
UNITS 0 skb unit_byte

net/ipv4/gre_offload.c gre_gso_segment() -> gso_make_checksum()

Type Parameter Key Value
PARAM_VALUE 0 skb 4096-ptr_max
PARAM_VALUE 0 skb->cb 4096-ptr_max
PARAM_VALUE 1 res 0
CAPPED_DATA 0 skb->head 1
DATA_SOURCE 0 skb $0 [m]
CONSTRAINT 0 skb <=49
CONSTRAINT 0 skb->data_len <=49
RX_PATH
TASK_NOT_RUNNING
HOST_DATA 0 skb->csum_offset 0-u16max
HOST_DATA 0 skb->data_len 0-u32max[c]
HOST_DATA 0 skb->next->csum_offset 0-u16max
HOST_DATA 0 skb->next->data_len 0-u32max[c]
HOST_DATA 0 skb->next->len 1-u32max[c]
HOST_DATA 0 skb->prev->csum_offset 0-u16max
HOST_DATA 0 skb->prev->data_len 0-u32max[c]
HOST_DATA 0 skb->prev->len 0-u32max[c]
HOST_DATA 0 skb->prev->truesize 0-u32max
HOST_DATA 0 skb->prev->tstamp 500000002-4294967299794967295[c]
HOST_DATA 0 skb->prev->users.refs.counter s32min-0,2-s32max
HOST_DATA 0 skb->protocol 1-255
HOST_DATA 0 *skb->data 0-255
NO_OVERFLOW_SIMPLE 0 skb->data_len
NO_OVERFLOW_SIMPLE 0 skb->dev->group
NO_OVERFLOW_SIMPLE 0 skb->dev->num_tc
NO_OVERFLOW_SIMPLE 0 skb->dev->real_num_rx_queues
NO_OVERFLOW_SIMPLE 0 skb->dev->real_num_tx_queues
NO_OVERFLOW_SIMPLE 0 skb->dev->stats.rx_bytes
NO_OVERFLOW_SIMPLE 0 skb->dev->stats.tx_bytes
NO_OVERFLOW_SIMPLE 0 skb->dev->tx_queue_len
NO_OVERFLOW_SIMPLE 0 skb->end
NO_OVERFLOW_SIMPLE 0 skb->len
NO_OVERFLOW_SIMPLE 0 skb->next->data_len
NO_OVERFLOW_SIMPLE 0 skb->next->end
NO_OVERFLOW_SIMPLE 0 skb->next->len
NO_OVERFLOW_SIMPLE 0 skb->next->tail
NO_OVERFLOW_SIMPLE 0 skb->next->truesize
NO_OVERFLOW_SIMPLE 0 skb->prev->data_len
NO_OVERFLOW_SIMPLE 0 skb->prev->end
NO_OVERFLOW_SIMPLE 0 skb->prev->len
NO_OVERFLOW_SIMPLE 0 skb->prev->tail
NO_OVERFLOW_SIMPLE 0 skb->prev->truesize
NO_OVERFLOW_SIMPLE 0 skb->sk->sk_backlog.len
NO_OVERFLOW_SIMPLE 0 skb->tail
NO_OVERFLOW_SIMPLE 0 skb->truesize
UNITS 0 skb unit_byte
HALF_LOCKED2 rcu_read