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Defined in 1 files as a prototype:

Defined in 1 files as a function:

Referenced in 14 files:

Smatch caller information:

drivers/tty/serial/sh-sci.c sci_receive_chars() -> tty_buffer_request_room()

Type Parameter Key Value
PARAM_VALUE 1 size 0-u16max
BUF_SIZE 0 port 984
CAPPED_DATA 1 size 1
RX_PATH
TASK_NOT_RUNNING
HOST_DATA 1 size 0-u16max
HALF_LOCKED2 &desc->request_mutex
HALF_LOCKED2 _T->lock
HALF_LOCKED2 flags
HALF_LOCKED2 irq

drivers/tty/serial/ucc_uart.c qe_uart_int_rx() -> tty_buffer_request_room()

Type Parameter Key Value
PARAM_VALUE 1 size 0-u16max
BUF_SIZE 0 port 984
CAPPED_DATA 1 size 1
DATA_SOURCE 1 size r ioread16be
RX_PATH
TASK_NOT_RUNNING
HOST_DATA 0 port->buf.tail->next->size 0,256-u32max[c]
HOST_DATA 0 port->buf.tail->size 0,256-u32max[c]
HOST_DATA 1 size 0-u16max
HALF_LOCKED2 &desc->request_mutex
HALF_LOCKED2 _T->lock
HALF_LOCKED2 flags
HALF_LOCKED2 irq

drivers/tty/serial/jsm/jsm_tty.c jsm_input() -> tty_buffer_request_room()

Type Parameter Key Value
PARAM_VALUE 0 port 4096-ptr_max
PARAM_VALUE 0 port->tty 4096-ptr_max
PARAM_VALUE 0 port->tty->termios.c_cflag 128-u32max
PARAM_VALUE 1 size 1-8191
BUF_SIZE 0 port 984
CAPPED_DATA 1 size 1
PREEMPT_ADD <- disables preempt
RX_PATH
TASK_NOT_RUNNING
HOST_DATA 1 size 1-8191[c]
LOCK2 &brd->bd_intr_lock
LOCK2 &ch->ch_lock
LOCK2 lock_flags
LOCK2 lock_flags
HALF_LOCKED2 &desc->request_mutex
HALF_LOCKED2 _T->lock
HALF_LOCKED2 flags
TYPE_LOCK (struct jsm_board)->bd_intr_lock
TYPE_LOCK (struct jsm_channel)->ch_lock

drivers/tty/hvc/hvc_console.c __hvc_poll() -> tty_buffer_request_room()

Type Parameter Key Value
PARAM_VALUE 0 port 4096-ptr_max
PARAM_VALUE 0 port->tty 4096-ptr_max
PARAM_VALUE 1 size 16
RX_PATH
TASK_NOT_RUNNING
LOCK2 &hp->lock
LOCK2 flags
HALF_LOCKED2 global &hvc_structs_mutex
TYPE_LOCK (struct hvc_struct)->lock

drivers/tty/serial/pch_uart.c dma_push_rx() -> tty_buffer_request_room()

Type Parameter Key Value
PARAM_VALUE 1 size 0-s32max,18446744071562067968-u64max
BUF_SIZE 0 port 984
DATA_SOURCE 1 size $1
RX_PATH
TASK_NOT_RUNNING
HALF_LOCKED2 &bdma_chan->lock
HALF_LOCKED2 &ioat_chan->cleanup_lock
HALF_LOCKED2 &mv_chan->lock
HALF_LOCKED2 &pd_chan->lock
HALF_LOCKED2 &plxdev->ring_lock
HALF_LOCKED2 &swdma_chan->complete_lock
HALF_LOCKED2 &td_chan->lock
HALF_LOCKED2 bh

drivers/tty/serial/men_z135_uart.c men_z135_handle_rx() -> tty_buffer_request_room()

Type Parameter Key Value
PARAM_VALUE 1 size 1-1020
BUF_SIZE 0 port 984
FUZZY_MAX 1 size 1020
HARD_MAX 1 size 1020
PREEMPT_ADD
RX_PATH
TASK_NOT_RUNNING
HOST_DATA 1 size 1-1020
LOCK2 &port->lock
HALF_LOCKED2 &desc->request_mutex
HALF_LOCKED2 _T->lock
HALF_LOCKED2 flags
HALF_LOCKED2 irq
TYPE_LOCK (struct uart_port)->lock

drivers/tty/serial/rsci.c rsci_receive_chars() -> tty_buffer_request_room()

Type Parameter Key Value
PARAM_VALUE 1 size 0-s32max,18446744071562067968-u64max
BUF_SIZE 0 port 984
RX_PATH
TASK_NOT_RUNNING
HALF_LOCKED2 &desc->request_mutex
HALF_LOCKED2 _T->lock
HALF_LOCKED2 flags
HALF_LOCKED2 irq

drivers/net/usb/hso.c put_rxbuf_data() -> tty_buffer_request_room()

Type Parameter Key Value
PARAM_VALUE 0 port 4096-ptr_max
PARAM_VALUE 0 port->tty 0,4096-ptr_max
RX_PATH
TASK_NOT_RUNNING
UNITS 1 size unit_byte
LOCK2 &serial->serial_lock
LOCK2 flags
TYPE_LOCK (struct hso_serial)->serial_lock