Documented in 1 files:
Defined in 1 files as a function:
Referenced in 23 files:
- drivers/iommu/iommufd/device.c, line 914
- drivers/misc/lkdtm/refcount.c
- drivers/net/ethernet/chelsio/inline_crypto/ch_ktls/chcr_ktls.c, line 1672
- include/linux/atmdev.h, line 184
- io_uring/io_uring.c, line 610
- mm/page_owner.c, line 246
- net/core/datagram.c, line 771
- net/core/pktgen.c
- net/core/skbuff.c, line 2473
- net/ipv4/esp4.c, line 481
- net/ipv4/inet_fragment.c
- net/ipv4/ip_output.c
- net/ipv4/tcp_offload.c, line 247
- net/ipv4/tcp_output.c, line 1625
- net/ipv4/udp_offload.c, line 626
- net/ipv6/esp6.c, line 513
- net/ipv6/ip6_output.c
- net/packet/af_packet.c, line 2641
- net/sctp/output.c, line 431
- net/sctp/socket.c, line 142
- net/tls/tls_device_fallback.c, line 205
- net/unix/af_unix.c, line 2457
- net/xdp/xsk.c
Smatch caller information:
net/ipv6/esp6.c esp6_output_head() -> refcount_add()
| Type | Parameter | Key | Value |
|---|---|---|---|
| PARAM_VALUE | 0 | i | (-2147483647)-s32max |
| PARAM_VALUE | 1 | r | 4096-ptr_max |
| RX_PATH | |||
| TASK_NOT_RUNNING | |||
| NOCHECK_CALL | |||
| UNITS | 0 | i | unit_byte |
net/core/datagram.c __zerocopy_sg_from_iter() -> refcount_add()
| Type | Parameter | Key | Value |
|---|---|---|---|
| PARAM_VALUE | 1 | r | 4096-ptr_max |
| RX_PATH | |||
| TASK_NOT_RUNNING | |||
| NOCHECK_CALL | |||
| UNITS | 0 | i | unit_byte |
net/packet/af_packet.c tpacket_fill_skb() -> refcount_add()
| Type | Parameter | Key | Value |
|---|---|---|---|
| PARAM_VALUE | 0 | i | 0-s32max |
| PARAM_VALUE | 1 | r | 4096-ptr_max |
| CAPPED_DATA | 0 | i | 1 |
| RX_PATH | |||
| TASK_NOT_RUNNING | |||
| NOCHECK_CALL | |||
| HOST_DATA | 0 | i | 0-2147483645[c] |
| UNITS | 0 | i | unit_byte |
| LOCK2 | &po->pg_vec_lock | ||
| HALF_LOCKED2 | &vq->mutex | ||
| HALF_LOCKED2 | sk | ||
| TYPE_LOCK | (struct packet_sock)->pg_vec_lock |
net/tls/tls_device_fallback.c complete_skb() -> refcount_add()
| Type | Parameter | Key | Value |
|---|---|---|---|
| PARAM_VALUE | 0 | i | 1-s32max |
| PARAM_VALUE | 1 | r | 4096-ptr_max |
| RX_PATH | |||
| TASK_NOT_RUNNING | |||
| NOCHECK_CALL | |||
| UNITS | 0 | i | unit_byte |
net/core/pktgen.c pktgen_xmit() -> refcount_add()
| Type | Parameter | Key | Value |
|---|---|---|---|
| PARAM_VALUE | 1 | r | 4096-ptr_max |
| NOCHECK_CALL |
net/core/pktgen.c pktgen_xmit() -> refcount_add()
| Type | Parameter | Key | Value |
|---|---|---|---|
| PARAM_VALUE | 1 | r | 4096-ptr_max |
| PREEMPT_ADD | <- disables preempt | ||
| NOCHECK_CALL | |||
| LOCK2 | bh | ||
| HALF_LOCKED2 | &txq->_xmit_lock |
net/core/skbuff.c skb_expand_head() -> refcount_add()
| Type | Parameter | Key | Value |
|---|---|---|---|
| PARAM_VALUE | 1 | r | 4096-ptr_max |
| PREEMPT_ADD | |||
| RX_PATH | |||
| TASK_NOT_RUNNING | |||
| NOCHECK_CALL | |||
| UNITS | 0 | i | unit_byte |
| HALF_LOCKED2 | bh | ||
| HALF_LOCKED2 | rcu_read |
net/atm/br2684.c atm_account_tx() -> refcount_add()
| Type | Parameter | Key | Value |
|---|---|---|---|
| PARAM_VALUE | 1 | r | 4096-ptr_max |
| PREEMPT_ADD | |||
| RX_PATH | |||
| TASK_NOT_RUNNING | |||
| NOCHECK_CALL | |||
| NO_OVERFLOW_SIMPLE | 0 | i | |
| UNITS | 0 | i | unit_byte |
| LOCK2 | global &devs_lock | ||
| HALF_LOCKED2 | &dev->tx_global_lock | ||
| HALF_LOCKED2 | &txq->_xmit_lock | ||
| HALF_LOCKED2 | bh | ||
| HALF_LOCKED2 | flags | ||
| HALF_LOCKED2 | rcu_read |
net/ipv4/tcp_offload.c tcp_gso_segment() -> refcount_add()
| Type | Parameter | Key | Value |
|---|---|---|---|
| PARAM_VALUE | 0 | i | 0-s32max |
| PARAM_VALUE | 1 | r | 4096-ptr_max |
| FUZZY_MAX | 0 | i | 0 |
| NOCHECK_CALL | |||
| UNITS | 0 | i | unit_byte |
drivers/iommu/iommufd/device.c iommufd_device_do_replace() -> refcount_add()
| Type | Parameter | Key | Value |
|---|---|---|---|
| PARAM_VALUE | 1 | r | 4096-ptr_max |
| DATA_SOURCE | 0 | i | r iommufd_group_device_num |
| NOCHECK_CALL | |||
| LOCK2 | &igroup->lock | ||
| HALF_LOCKED2 | &ioas->mutex | ||
| HALF_LOCKED2 | &vdev->dev_set->lock | ||
| TYPE_LOCK | (struct iommufd_group)->lock |
net/ipv4/udp_offload.c __udp_gso_segment() -> refcount_add()
| Type | Parameter | Key | Value |
|---|---|---|---|
| PARAM_VALUE | 0 | i | 0-s32max |
| PARAM_VALUE | 1 | r | 4096-ptr_max |
| FUZZY_MAX | 0 | i | 0 |
| NOCHECK_CALL | |||
| UNITS | 0 | i | unit_byte |
net/sctp/socket.c sctp_set_owner_w() -> refcount_add()
| Type | Parameter | Key | Value |
|---|---|---|---|
| PARAM_VALUE | 0 | i | 256 |
| PARAM_VALUE | 1 | r | 4096-ptr_max |
| RX_PATH | |||
| TASK_NOT_RUNNING | |||
| NOCHECK_CALL | |||
| UNITS | 0 | i | unit_byte |
| HALF_LOCKED2 | newsk | ||
| HALF_LOCKED2 | oldsk | ||
| HALF_LOCKED2 | sk |
net/ipv4/esp4.c esp_output_head() -> refcount_add()
| Type | Parameter | Key | Value |
|---|---|---|---|
| PARAM_VALUE | 0 | i | (-2147483647)-s32max |
| PARAM_VALUE | 1 | r | 4096-ptr_max |
| RX_PATH | |||
| TASK_NOT_RUNNING | |||
| NOCHECK_CALL | |||
| UNITS | 0 | i | unit_byte |
io_uring/io_uring.c io_task_refs_refill() -> refcount_add()
| Type | Parameter | Key | Value |
|---|---|---|---|
| PARAM_VALUE | 0 | i | s32min-(-2147482625),1025-s32max |
| PARAM_VALUE | 1 | r | 4096-ptr_max |
| NOCHECK_CALL | |||
| LOCK2 | &ctx->uring_lock | ||
| HALF_LOCKED2 | &sqd->lock | ||
| TYPE_LOCK | (struct io_ring_ctx)->uring_lock |
net/unix/af_unix.c unix_stream_sendmsg() -> refcount_add()
| Type | Parameter | Key | Value |
|---|---|---|---|
| PARAM_VALUE | 0 | i | 0-s32max |
| PARAM_VALUE | 1 | r | 4096-ptr_max |
| CAPPED_DATA | 0 | i | 1 |
| RX_PATH | |||
| TASK_NOT_RUNNING | |||
| NOCHECK_CALL | |||
| USER_DATA | 0 | i | 1-s32max[c][u] |
| HALF_LOCKED2 | &vq->mutex | ||
| HALF_LOCKED2 | sk |
net/sctp/output.c sctp_packet_gso_append() -> refcount_add()
| Type | Parameter | Key | Value |
|---|---|---|---|
| PARAM_VALUE | 1 | r | 4096-ptr_max |
| RX_PATH | |||
| TASK_NOT_RUNNING | |||
| NOCHECK_CALL | |||
| UNITS | 0 | i | unit_byte |
drivers/net/ethernet/chelsio/inline_crypto/ch_ktls/chcr_ktls.c chcr_ktls_copy_record_in_skb() -> refcount_add()
| Type | Parameter | Key | Value |
|---|---|---|---|
| PARAM_VALUE | 1 | r | 4096-ptr_max |
| PREEMPT_ADD | |||
| TASK_NOT_RUNNING | |||
| NOCHECK_CALL | |||
| UNITS | 0 | i | unit_byte |
| LOCK2 | &tx_ctx->lock | ||
| HALF_LOCKED2 | &adap->ptp_lock | ||
| HALF_LOCKED2 | &dev->tx_global_lock | ||
| HALF_LOCKED2 | bh | ||
| HALF_LOCKED2 | flags | ||
| HALF_LOCKED2 | rcu_read | ||
| TYPE_LOCK | (struct tls_offload_context_tx)->lock |
net/ipv4/inet_fragment.c inet_frag_reasm_finish() -> refcount_add()
| Type | Parameter | Key | Value |
|---|---|---|---|
| PARAM_VALUE | 0 | i | 0 |
| PARAM_VALUE | 1 | r | 4096-ptr_max |
| PREEMPT_ADD | |||
| RX_PATH | |||
| TASK_NOT_RUNNING | |||
| NOCHECK_CALL | |||
| UNITS | 0 | i | unit_byte |
| LOCK2 | rcu_read | ||
| HALF_LOCKED2 | &fq->q.lock | ||
| HALF_LOCKED2 | &qp->q.lock | ||
| HALF_LOCKED2 | bh | ||
| TYPE_LOCK | (struct inet_frag_queue)->lock |
net/ipv4/inet_fragment.c inet_frag_reasm_prepare() -> refcount_add()
| Type | Parameter | Key | Value |
|---|---|---|---|
| PARAM_VALUE | 1 | r | 4096-ptr_max |
| PREEMPT_ADD | |||
| RX_PATH | |||
| TASK_NOT_RUNNING | |||
| NOCHECK_CALL | |||
| UNITS | 0 | i | unit_byte |
| LOCK2 | rcu_read | ||
| HALF_LOCKED2 | &fq->q.lock | ||
| HALF_LOCKED2 | &qp->q.lock | ||
| HALF_LOCKED2 | bh | ||
| TYPE_LOCK | (struct inet_frag_queue)->lock |
net/xdp/xsk.c xsk_build_skb() -> refcount_add()
| Type | Parameter | Key | Value |
|---|---|---|---|
| PARAM_VALUE | 0 | i | 4096 |
| PARAM_VALUE | 1 | r | 4096-ptr_max |
| RX_PATH | |||
| TASK_NOT_RUNNING | |||
| NOCHECK_CALL | |||
| UNITS | 0 | i | unit_byte |
| LOCK2 | &xs->mutex | ||
| TYPE_LOCK | (struct xdp_sock)->mutex |
net/xdp/xsk.c xsk_build_skb_zerocopy() -> refcount_add()
| Type | Parameter | Key | Value |
|---|---|---|---|
| PARAM_VALUE | 1 | r | 4096-ptr_max |
| RX_PATH | |||
| TASK_NOT_RUNNING | |||
| NOCHECK_CALL | |||
| UNITS | 0 | i | unit_byte |
| LOCK2 | &xs->mutex | ||
| TYPE_LOCK | (struct xdp_sock)->mutex |
net/atm/pppoatm.c atm_account_tx() -> refcount_add()
| Type | Parameter | Key | Value |
|---|---|---|---|
| PARAM_VALUE | 1 | r | 4096-ptr_max |
| PREEMPT_ADD | |||
| RX_PATH | |||
| TASK_NOT_RUNNING | |||
| NOCHECK_CALL | |||
| NO_OVERFLOW_SIMPLE | 0 | i | |
| UNITS | 0 | i | unit_byte |
| HALF_LOCKED2 | &pch->downl | ||
| HALF_LOCKED2 | &pchb->downl | ||
| HALF_LOCKED2 | &ppp->wlock | ||
| HALF_LOCKED2 | bh | ||
| HALF_LOCKED2 | rcu_read | ||
| TYPE_LOCK | (struct channel)->downl |
drivers/misc/lkdtm/refcount.c lkdtm_REFCOUNT_ADD_OVERFLOW() -> refcount_add()
| Type | Parameter | Key | Value |
|---|---|---|---|
| PARAM_VALUE | 0 | i | 4 |
| PARAM_VALUE | 1 | r | 6023483045546663936 |
| NOCHECK_CALL |
drivers/misc/lkdtm/refcount.c lkdtm_REFCOUNT_ADD_OVERFLOW() -> refcount_add()
| Type | Parameter | Key | Value |
|---|---|---|---|
| PARAM_VALUE | 0 | i | 4 |
| PARAM_VALUE | 1 | r | 6023483045546663936 |
| NOCHECK_CALL |
drivers/misc/lkdtm/refcount.c lkdtm_REFCOUNT_ADD_SATURATED() -> refcount_add()
| Type | Parameter | Key | Value |
|---|---|---|---|
| PARAM_VALUE | 0 | i | 8 |
| PARAM_VALUE | 1 | r | 2931866480025153536 |
| PARAM_VALUE | 1 | r->refs.counter | (-1073741824) |
| NOCHECK_CALL |
drivers/misc/lkdtm/refcount.c lkdtm_REFCOUNT_ADD_ZERO() -> refcount_add()
| Type | Parameter | Key | Value |
|---|---|---|---|
| PARAM_VALUE | 0 | i | 3 |
| PARAM_VALUE | 1 | r | 3767742910534733824 |
| PARAM_VALUE | 1 | r->refs.counter | (-1073741824),0-s32max |
| NOCHECK_CALL |
mm/page_owner.c inc_stack_record_count() -> refcount_add()
| Type | Parameter | Key | Value |
|---|---|---|---|
| PARAM_VALUE | 1 | r | 4096-ptr_max |
| PARAM_VALUE | 1 | r->refs.counter | s32min-(-1073741825),(-1073741823)-s32max |
| CAPPED_DATA | 0 | i | 1 |
| DATA_SOURCE | 0 | i | $2 |
| RX_PATH | |||
| TASK_NOT_RUNNING | |||
| NOCHECK_CALL |
net/atm/common.c atm_account_tx() -> refcount_add()
| Type | Parameter | Key | Value |
|---|---|---|---|
| PARAM_VALUE | 1 | r | 4096-ptr_max |
| RX_PATH | |||
| NOCHECK_CALL | |||
| UNITS | 0 | i | unit_byte |
| LOCK2 | sk | ||
| HALF_LOCKED2 | &vq->mutex |
net/ipv4/tcp_output.c __tcp_transmit_skb() -> refcount_add()
| Type | Parameter | Key | Value |
|---|---|---|---|
| PARAM_VALUE | 1 | r | 4096-ptr_max |
| RX_PATH | |||
| TASK_NOT_RUNNING | |||
| NOCHECK_CALL | |||
| HOST_DATA | 0 | i | 0-s32max[c] |
| UNITS | 0 | i | unit_byte |
| HALF_LOCKED2 | &sk->sk_lock.slock | ||
| HALF_LOCKED2 | sk |