can_skb_ext_find identifier - Linux source code next-20260811

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linux

Versions

FIXME
- FIXME
  - next-20260811

Defined in 1 files as a function:

include/linux/can/skb.h, line 52 (as a function)

Referenced in 3 files:

Smatch caller information:

net/can/af_can.c can_rcv() -> can_skb_ext_find()

Type	Parameter	Key	Value
BUF_SIZE	0	skb	(-1)-s32max
BUF_SIZE	0	skb	(-1)-s32max
DATA_SOURCE	0	skb	$0
RX_PATH
TASK_NOT_RUNNING
HOST_DATA	0	skb->csum	0-192512[c]
HOST_DATA	0	skb->csum_offset	0-u16max
HOST_DATA	0	skb->data_len	0-u32max[c]
HOST_DATA	0	skb->len	0-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	1-u32max[c]
HOST_DATA	0	skb->prev->tstamp	500000002-4294967299794967295[c]
HOST_DATA	0	skb->truesize	0-u32max
HOST_DATA	0	skb->tstamp	500000002-4294967299794967295[c]
HOST_DATA	0	skb->users.refs.counter	s32min-0,2-s32max
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->proto_down
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->extensions
NO_OVERFLOW_SIMPLE	0	skb->len
NO_OVERFLOW_SIMPLE	0	skb->next->end
NO_OVERFLOW_SIMPLE	0	skb->next->len
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

net/can/af_can.c canfd_rcv() -> can_skb_ext_find()

Type	Parameter	Key	Value
BUF_SIZE	0	skb	(-1)-s32max
BUF_SIZE	0	skb	(-1)-s32max
DATA_SOURCE	0	skb	$0
RX_PATH
TASK_NOT_RUNNING
HOST_DATA	0	skb->csum	0-192512[c]
HOST_DATA	0	skb->csum_offset	0-u16max
HOST_DATA	0	skb->data_len	0-u32max[c]
HOST_DATA	0	skb->len	0-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	1-u32max[c]
HOST_DATA	0	skb->prev->tstamp	500000002-4294967299794967295[c]
HOST_DATA	0	skb->truesize	0-u32max
HOST_DATA	0	skb->tstamp	500000002-4294967299794967295[c]
HOST_DATA	0	skb->users.refs.counter	s32min-0,2-s32max
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->proto_down
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->extensions
NO_OVERFLOW_SIMPLE	0	skb->len
NO_OVERFLOW_SIMPLE	0	skb->next->end
NO_OVERFLOW_SIMPLE	0	skb->next->len
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

net/can/af_can.c canxl_rcv() -> can_skb_ext_find()

Type	Parameter	Key	Value
BUF_SIZE	0	skb	(-1)-s32max
BUF_SIZE	0	skb	(-1)-s32max
DATA_SOURCE	0	skb	$0
RX_PATH
TASK_NOT_RUNNING
HOST_DATA	0	skb->csum	0-192512[c]
HOST_DATA	0	skb->csum_offset	0-u16max
HOST_DATA	0	skb->data_len	0-u32max[c]
HOST_DATA	0	skb->len	0-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	1-u32max[c]
HOST_DATA	0	skb->prev->tstamp	500000002-4294967299794967295[c]
HOST_DATA	0	skb->truesize	0-u32max
HOST_DATA	0	skb->tstamp	500000002-4294967299794967295[c]
HOST_DATA	0	skb->users.refs.counter	s32min-0,2-s32max
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->proto_down
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->extensions
NO_OVERFLOW_SIMPLE	0	skb->len
NO_OVERFLOW_SIMPLE	0	skb->next->end
NO_OVERFLOW_SIMPLE	0	skb->next->len
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

drivers/net/can/dev/skb.c __can_get_echo_skb() -> can_skb_ext_find()

Type	Parameter	Key	Value
PARAM_VALUE	0	skb	4096-ptr_max
PREEMPT_ADD
RX_PATH
TASK_NOT_RUNNING

drivers/net/can/dev/skb.c can_free_echo_skb() -> can_skb_ext_find()

Type	Parameter	Key	Value
PARAM_VALUE	0	skb	1-u64max
RX_PATH
TASK_NOT_RUNNING

drivers/net/can/dev/skb.c can_put_echo_skb() -> can_skb_ext_find()

Type	Parameter	Key	Value
PARAM_VALUE	0	skb	4096-ptr_max
PARAM_VALUE	0	skb->active_extensions	0
BUF_SIZE	0	skb	(-1),240
BUF_SIZE	0	skb	(-1),240
DATA_SOURCE	0	skb	r can_create_echo_skb
BIT_INFO	0	skb->protocol	0xc,0xffffffffffffffff
PREEMPT_ADD
RX_PATH
TASK_NOT_RUNNING
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->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->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
HALF_LOCKED2		&card->spin
HALF_LOCKED2		&priv->echo_lock
HALF_LOCKED2		&priv->hi3110_lock
HALF_LOCKED2		&priv->mcp_lock
HALF_LOCKED2		&priv->tx_lock
HALF_LOCKED2		&up->echo_skb_lock

drivers/net/can/dev/skb.c can_skb_init_valid() -> can_skb_ext_find()

Type	Parameter	Key	Value
PARAM_VALUE	0	skb	4096-ptr_max
PARAM_VALUE	0	skb->protocol	12-14
BUF_SIZE	0	skb	(-1)-s32max
BUF_SIZE	0	skb	(-1)-s32max
CAPPED_DATA	0	skb->len	1
DATA_SOURCE	0	skb	$1
RX_PATH
TASK_NOT_RUNNING
HOST_DATA	0	skb->csum_offset	0-u16max
HOST_DATA	0	skb->data_len	0-2147483648[c]
HOST_DATA	0	skb->len	13-2060[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->tstamp	500000002-4294967299794967295[c]
HOST_DATA	0	skb->users.refs.counter	s32min-0,2-s32max
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->extensions
NO_OVERFLOW_SIMPLE	0	skb->len
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
HALF_LOCKED2		&dev->tx_global_lock
HALF_LOCKED2		bh
HALF_LOCKED2		flags
HALF_LOCKED2		rcu_read

net/can/gw.c can_can_gw_rcv() -> can_skb_ext_find()

Type	Parameter	Key	Value
PARAM_VALUE	0	skb	4096-ptr_max
BUF_SIZE	0	skb	(-1)-s32max
BUF_SIZE	0	skb	(-1)-s32max
CAPPED_DATA	0	skb	1
CAPPED_DATA	0	skb->hash	1
DATA_SOURCE	0	skb	$0
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->len	16,72[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	1-u32max[c]
HOST_DATA	0	skb->prev->tstamp	500000002-4294967299794967295[c]
HOST_DATA	0	skb->truesize	0-u32max
HOST_DATA	0	skb->tstamp	500000002-4294967299794967295[c]
HOST_DATA	0	skb->users.refs.counter	s32min-0,2-s32max
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->proto_down
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->extensions
NO_OVERFLOW_SIMPLE	0	skb->len
NO_OVERFLOW_SIMPLE	0	skb->next->end
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
LOCK2		rcu_read