drivers/block/ublk_drv.c

376

return kfifo_is_empty(&q->evts_fifo);

drivers/block/ublk_drv.c

381

WARN_ON_ONCE(!kfifo_is_empty(&q->evts_fifo));

drivers/counter/counter-chrdev.c

114

if (!kfifo_is_empty(&counter->events))

drivers/counter/counter-chrdev.c

79

if (kfifo_is_empty(&counter->events)) {

drivers/counter/counter-chrdev.c

84

!kfifo_is_empty(&counter->events) ||

drivers/crypto/caam/caamrng.c

160

if (kfifo_is_empty(&ctx->fifo))

drivers/crypto/hisilicon/sec/sec_algs.c

402

(kfifo_is_empty(&queue->softqueue) &&

drivers/crypto/hisilicon/sec/sec_algs.c

485

!kfifo_is_empty(&ctx->queue->softqueue) &&

drivers/gnss/core.c

107

!kfifo_is_empty(&gdev->read_fifo));

drivers/gnss/core.c

194

if (!kfifo_is_empty(&gdev->read_fifo))

drivers/gnss/core.c

96

while (kfifo_is_empty(&gdev->read_fifo)) {

drivers/gpio/gpiolib-cdev.c

1499

if (kfifo_is_empty(&lr->events)) {

drivers/gpio/gpiolib-cdev.c

1507

!kfifo_is_empty(&lr->events));

drivers/gpio/gpiolib-cdev.c

1846

if (kfifo_is_empty(&le->events)) {

drivers/gpio/gpiolib-cdev.c

1854

!kfifo_is_empty(&le->events));

drivers/gpio/gpiolib-cdev.c

2623

if (kfifo_is_empty(&cdev->events)) {

drivers/gpio/gpiolib-cdev.c

2631

!kfifo_is_empty(&cdev->events));

drivers/gpu/drm/amd/amdkfd/kfd_interrupt.c

127

if (kfifo_is_empty(&node->ih_fifo))

drivers/gpu/drm/amd/amdkfd/kfd_smi_events.c

74

if (!kfifo_is_empty(&client->fifo))

drivers/hid/hid-debug.c

3721

if (kfifo_is_empty(&list->hid_debug_fifo)) {

drivers/hid/hid-debug.c

3725

while (kfifo_is_empty(&list->hid_debug_fifo)) {

drivers/hid/hid-debug.c

3778

if (!kfifo_is_empty(&list->hid_debug_fifo))

drivers/hid/hid-logitech-dj.c

918

if (!kfifo_is_empty(&djrcv_dev->notif_fifo))

drivers/hid/hid-sensor-custom.c

653

if (kfifo_is_empty(&sensor_inst->data_fifo)) {

drivers/hid/hid-sensor-custom.c

658

!kfifo_is_empty(&sensor_inst->data_fifo));

drivers/hid/hid-sensor-custom.c

708

if (!kfifo_is_empty(&sensor_inst->data_fifo))

drivers/hid/wacom_sys.c

2749

if (!kfifo_is_empty(&remote->remote_fifo))

drivers/hid/wacom_sys.c

71

while (!kfifo_is_empty(fifo)) {

drivers/iio/industrialio-event.c

112

if (!kfifo_is_empty(&ev_int->det_events))

drivers/iio/industrialio-event.c

136

if (kfifo_is_empty(&ev_int->det_events)) {

drivers/iio/industrialio-event.c

141

!kfifo_is_empty(&ev_int->det_events) ||

drivers/input/rmi4/rmi_driver.c

212

if (!kfifo_is_empty(&drvdata->attn_fifo))

drivers/input/rmi4/rmi_driver.c

936

while (!kfifo_is_empty(&data->attn_fifo)) {

drivers/media/radio/radio-si476x.c

1093

if (kfifo_is_empty(&radio->core->rds_fifo)) {

drivers/media/radio/radio-si476x.c

1098

(!kfifo_is_empty(&radio->core->rds_fifo) ||

drivers/media/radio/radio-si476x.c

1136

if (!kfifo_is_empty(&radio->core->rds_fifo))

drivers/media/rc/lirc_dev.c

594

!kfifo_is_empty(&fh->scancodes))

drivers/media/rc/lirc_dev.c

598

!kfifo_is_empty(&fh->rawir))

drivers/media/rc/lirc_dev.c

617

if (kfifo_is_empty(&fh->rawir)) {

drivers/media/rc/lirc_dev.c

622

!kfifo_is_empty(&fh->rawir) ||

drivers/media/rc/lirc_dev.c

656

if (kfifo_is_empty(&fh->scancodes)) {

drivers/media/rc/lirc_dev.c

661

!kfifo_is_empty(&fh->scancodes) ||

drivers/media/rc/rc-ir-raw.c

53

} else if (!kfifo_is_empty(&raw->kfifo))

drivers/memstick/host/r592.c

327

if (!kfifo_is_empty(&dev->pio_fifo)) {

drivers/memstick/host/r592.c

342

WARN_ON(!kfifo_is_empty(&dev->pio_fifo));

drivers/memstick/host/r592.c

362

if (kfifo_is_empty(&dev->pio_fifo))

drivers/memstick/host/r592.c

382

if (!kfifo_is_empty(&dev->pio_fifo)) {

drivers/memstick/host/r592.c

388

if (!kfifo_is_empty(&dev->pio_fifo))

drivers/most/most_cdev.c

249

(!kfifo_is_empty(&c->fifo) ||

drivers/most/most_cdev.c

290

if (!c->dev || !kfifo_is_empty(&c->fifo))

drivers/most/most_cdev.c

293

if (!c->dev || !kfifo_is_empty(&c->fifo) || ch_has_mbo(c))

drivers/net/ieee802154/ca8210.c

2531

if (kfifo_is_empty(&priv->test.up_fifo))

drivers/net/ieee802154/ca8210.c

2537

!kfifo_is_empty(&priv->test.up_fifo)

drivers/net/ieee802154/ca8210.c

2615

if (!kfifo_is_empty(&priv->test.up_fifo))

drivers/net/ieee802154/ca8210.c

2619

!kfifo_is_empty(&priv->test.up_fifo))) {

drivers/net/wireless/ath/ath10k/htt_rx.c

4410

if ((quota < budget) && !kfifo_is_empty(&htt->txdone_fifo))

drivers/net/wireless/ath/ath10k/htt_tx.c

421

WARN_ON(!kfifo_is_empty(&htt->txdone_fifo));

drivers/net/wireless/ralink/rt2x00/rt2800mmio.c

320

if (!kfifo_is_empty(&rt2x00dev->txstatus_fifo))

drivers/net/wireless/ralink/rt2x00/rt2800mmio.c

351

if (!kfifo_is_empty(&rt2x00dev->txstatus_fifo))

drivers/net/wireless/ralink/rt2x00/rt2800mmio.c

800

while (!kfifo_is_empty(&rt2x00dev->txstatus_fifo) ||

drivers/net/wireless/ralink/rt2x00/rt2800mmio.c

826

if (!kfifo_is_empty(&rt2x00dev->txstatus_fifo))

drivers/net/wireless/ralink/rt2x00/rt2800usb.c

461

while (!kfifo_is_empty(&rt2x00dev->txstatus_fifo) ||

drivers/net/wireless/ralink/rt2x00/rt2x00usb.c

292

!kfifo_is_empty(&rt2x00dev->txstatus_fifo))

drivers/pci/pcie/aer.c

1457

if (kfifo_is_empty(&rpc->aer_fifo))

drivers/platform/surface/aggregator/ssh_packet_layer.c

1804

!kfifo_is_empty(&ptl->rx.fifo) ||

drivers/platform/surface/surface_aggregator_cdev.c

593

if (kfifo_is_empty(&client->buffer)) {

drivers/platform/surface/surface_aggregator_cdev.c

600

!kfifo_is_empty(&client->buffer) ||

drivers/platform/surface/surface_aggregator_cdev.c

651

if (!kfifo_is_empty(&client->buffer))

drivers/platform/surface/surface_dtx.c

478

if (kfifo_is_empty(&client->buffer)) {

drivers/platform/surface/surface_dtx.c

485

!kfifo_is_empty(&client->buffer) ||

drivers/platform/surface/surface_dtx.c

536

if (!kfifo_is_empty(&client->buffer))

drivers/rapidio/devices/rio_mport_cdev.c

2258

if (kfifo_is_empty(&priv->event_fifo) &&

drivers/soc/aspeed/aspeed-lpc-snoop.c

120

if (kfifo_is_empty(&chan->fifo)) {

drivers/soc/aspeed/aspeed-lpc-snoop.c

124

!kfifo_is_empty(&chan->fifo));

drivers/soc/aspeed/aspeed-lpc-snoop.c

141

return !kfifo_is_empty(&chan->fifo) ? EPOLLIN : 0;

drivers/tty/hvc/hvc_dcc.c

192

if (smp_processor_id() || (!kfifo_is_empty(&outbuf))) {

drivers/tty/hvc/hvc_dcc.c

232

if (smp_processor_id() || (!kfifo_is_empty(&inbuf))) {

drivers/tty/mxser.c

1309

if (!kfifo_is_empty(&info->port.xmit_fifo))

drivers/tty/mxser.c

1529

if (kfifo_is_empty(&port->port.xmit_fifo) || tty->flow.stopped ||

drivers/tty/mxser.c

1549

if (kfifo_is_empty(&port->port.xmit_fifo))

drivers/tty/mxser.c

898

is_empty = kfifo_is_empty(&info->port.xmit_fifo);

drivers/tty/mxser.c

921

if (kfifo_is_empty(&info->port.xmit_fifo) || tty->flow.stopped ||

drivers/tty/serial/8250/8250_bcm7271.c

420

kfifo_is_empty(&tport->xmit_fifo)) {

drivers/tty/serial/8250/8250_bcm7271.c

549

if (!kfifo_is_empty(&tport->xmit_fifo) && !uart_tx_stopped(up))

drivers/tty/serial/8250/8250_core.c

244

(!kfifo_is_empty(&up->port.state->port.xmit_fifo) ||

drivers/tty/serial/8250/8250_dma.c

108

if (uart_tx_stopped(&p->port) || kfifo_is_empty(&tport->xmit_fifo)) {

drivers/tty/serial/8250/8250_exar.c

494

} while (!kfifo_is_empty(&tport->xmit_fifo) &&

drivers/tty/serial/8250/8250_omap.c

1102

if (!kfifo_is_empty(&tport->xmit_fifo) && !uart_tx_stopped(&p->port)) {

drivers/tty/serial/8250/8250_omap.c

1130

if (uart_tx_stopped(&p->port) || kfifo_is_empty(&tport->xmit_fifo)) {

drivers/tty/serial/8250/8250_omap.c

1322

kfifo_is_empty(&port->state->port.xmit_fifo)) {

drivers/tty/serial/8250/8250_pci1xxxx.c

500

if ((uart_tx_stopped(port)) || kfifo_is_empty(&tport->xmit_fifo)) {

drivers/tty/serial/8250/8250_pci1xxxx.c

513

if (kfifo_is_empty(&tport->xmit_fifo))

drivers/tty/serial/8250/8250_pci1xxxx.c

526

if (kfifo_is_empty(&tport->xmit_fifo) &&

drivers/tty/serial/8250/8250_port.c

1527

if (!port->x_char && kfifo_is_empty(&port->state->port.xmit_fifo))

drivers/tty/serial/8250/8250_port.c

1685

if (kfifo_is_empty(&tport->xmit_fifo)) {

drivers/tty/serial/8250/8250_port.c

1728

if (kfifo_is_empty(&tport->xmit_fifo) &&

drivers/tty/serial/amba-pl011.c

1515

if (kfifo_is_empty(&tport->xmit_fifo) || uart_tx_stopped(&uap->port)) {

drivers/tty/serial/amba-pl011.c

1542

if (kfifo_is_empty(&tport->xmit_fifo)) {

drivers/tty/serial/amba-pl011.c

572

kfifo_is_empty(&tport->xmit_fifo)) {

drivers/tty/serial/ar933x_uart.c

402

(up->port.x_char || !kfifo_is_empty(&tport->xmit_fifo))) {

drivers/tty/serial/ar933x_uart.c

433

if (!kfifo_is_empty(&tport->xmit_fifo)) {

drivers/tty/serial/atmel_serial.c

1459

if (!kfifo_is_empty(&tport->xmit_fifo) && !uart_tx_stopped(port)) {

drivers/tty/serial/atmel_serial.c

886

if (!kfifo_is_empty(&tport->xmit_fifo))

drivers/tty/serial/atmel_serial.c

935

if (!kfifo_is_empty(&tport->xmit_fifo) && !uart_tx_stopped(port)) {

drivers/tty/serial/clps711x.c

159

if (kfifo_is_empty(&tport->xmit_fifo) || uart_tx_stopped(port)) {

drivers/tty/serial/cpm_uart.c

676

if (kfifo_is_empty(&tport->xmit_fifo) || uart_tx_stopped(port)) {

drivers/tty/serial/cpm_uart.c

685

!kfifo_is_empty(&tport->xmit_fifo)) {

drivers/tty/serial/cpm_uart.c

701

if (kfifo_is_empty(&tport->xmit_fifo)) {

drivers/tty/serial/digicolor-usart.c

198

if (kfifo_is_empty(&tport->xmit_fifo) || uart_tx_stopped(port)) {

drivers/tty/serial/dz.c

288

if (kfifo_is_empty(&tport->xmit_fifo)) {

drivers/tty/serial/fsl_linflexuart.c

188

if (kfifo_is_empty(&tport->xmit_fifo))

drivers/tty/serial/fsl_linflexuart.c

214

if (kfifo_is_empty(&tport->xmit_fifo) || uart_tx_stopped(sport)) {

drivers/tty/serial/fsl_lpuart.c

520

return kfifo_is_empty(&port->state->port.xmit_fifo) ||

drivers/tty/serial/fsl_lpuart.c

784

if (kfifo_is_empty(&tport->xmit_fifo))

drivers/tty/serial/imx.c

548

if (kfifo_is_empty(&tport->xmit_fifo) ||

drivers/tty/serial/imx.c

580

if (kfifo_is_empty(&tport->xmit_fifo))

drivers/tty/serial/imx.c

609

if (!kfifo_is_empty(&tport->xmit_fifo) &&

drivers/tty/serial/imx.c

680

if (!sport->port.x_char && kfifo_is_empty(&tport->xmit_fifo))

drivers/tty/serial/imx.c

756

if (!kfifo_is_empty(&tport->xmit_fifo) &&

drivers/tty/serial/jsm/jsm_cls.c

479

if (kfifo_is_empty(&tport->xmit_fifo))

drivers/tty/serial/jsm/jsm_neo.c

491

if (kfifo_is_empty(&tport->xmit_fifo))

drivers/tty/serial/jsm/jsm_neo.c

542

if (kfifo_is_empty(&tport->xmit_fifo))

drivers/tty/serial/max3100.c

297

(!kfifo_is_empty(&tport->xmit_fifo) &&

drivers/tty/serial/max310x.c

761

if (kfifo_is_empty(&tport->xmit_fifo) || uart_tx_stopped(port))

drivers/tty/serial/max310x.c

768

while (!kfifo_is_empty(&tport->xmit_fifo)) {

drivers/tty/serial/men_z135_uart.c

303

if (kfifo_is_empty(&tport->xmit_fifo))

drivers/tty/serial/men_z135_uart.c

356

if (!kfifo_is_empty(&tport->xmit_fifo))

drivers/tty/serial/meson_uart.c

167

if (!kfifo_is_empty(&tport->xmit_fifo)) {

drivers/tty/serial/milbeaut_usio.c

117

if (kfifo_is_empty(&tport->xmit_fifo))

drivers/tty/serial/milbeaut_usio.c

90

if (kfifo_is_empty(&tport->xmit_fifo) || uart_tx_stopped(port)) {

drivers/tty/serial/msm_serial.c

882

if (kfifo_is_empty(&tport->xmit_fifo))

drivers/tty/serial/msm_serial.c

916

if (kfifo_is_empty(&tport->xmit_fifo) || uart_tx_stopped(port)) {

drivers/tty/serial/pic32_uart.c

359

if (kfifo_is_empty(&tport->xmit_fifo))

drivers/tty/serial/pic32_uart.c

386

if (kfifo_is_empty(&tport->xmit_fifo))

drivers/tty/serial/pmac_zilog.c

389

if (kfifo_is_empty(&tport->xmit_fifo)) {

drivers/tty/serial/qcom_geni_serial.c

1039

if (!kfifo_is_empty(&tport->xmit_fifo))

drivers/tty/serial/qcom_geni_serial.c

680

if (kfifo_is_empty(&tport->xmit_fifo))

drivers/tty/serial/rda-uart.c

357

if (!kfifo_is_empty(&tport->xmit_fifo)) {

drivers/tty/serial/rsci.c

442

if (kfifo_is_empty(&tport->xmit_fifo))

drivers/tty/serial/rsci.c

471

if (kfifo_is_empty(&tport->xmit_fifo)) {

drivers/tty/serial/samsung_tty.c

505

if (!kfifo_is_empty(&tport->xmit_fifo) &&

drivers/tty/serial/samsung_tty.c

896

if (kfifo_is_empty(&tport->xmit_fifo) || uart_tx_stopped(port)) {

drivers/tty/serial/samsung_tty.c

926

if (kfifo_is_empty(&tport->xmit_fifo))

drivers/tty/serial/sb1250-duart.c

411

if (stop_tx || kfifo_is_empty(&tport->xmit_fifo)) {

drivers/tty/serial/sc16is7xx.c

665

if (kfifo_is_empty(&tport->xmit_fifo) || uart_tx_stopped(port)) {

drivers/tty/serial/sc16is7xx.c

689

if (kfifo_is_empty(&tport->xmit_fifo))

drivers/tty/serial/sccnxp.c

452

if (kfifo_is_empty(&tport->xmit_fifo) || uart_tx_stopped(port)) {

drivers/tty/serial/serial-tegra.c

597

if (!kfifo_is_empty(&tport->xmit_fifo) && !tup->tx_in_progress)

drivers/tty/serial/serial_core.c

1074

(!kfifo_is_empty(&state->port.xmit_fifo) &&

drivers/tty/serial/serial_port.c

27

!kfifo_is_empty(&port->state->port.xmit_fifo);

drivers/tty/serial/sh-sci.c

1022

if (kfifo_is_empty(&tport->xmit_fifo))

drivers/tty/serial/sh-sci.c

1040

kfifo_is_empty(&tport->xmit_fifo)) {

drivers/tty/serial/sh-sci.c

1059

if (kfifo_is_empty(&tport->xmit_fifo)) {

drivers/tty/serial/sh-sci.c

1427

if (!kfifo_is_empty(&tport->xmit_fifo)) {

drivers/tty/serial/sh-sci.c

772

if (s->chan_tx && !kfifo_is_empty(&port->state->port.xmit_fifo) &&

drivers/tty/serial/sprd_serial.c

281

if (kfifo_is_empty(&tport->xmit_fifo) || sprd_tx_buf_remap(port) ||

drivers/tty/serial/sprd_serial.c

353

if (kfifo_is_empty(&tport->xmit_fifo) || uart_tx_stopped(port)) {

drivers/tty/serial/st-asc.c

392

if (!kfifo_is_empty(&tport->xmit_fifo))

drivers/tty/serial/stm32-usart.c

715

if (kfifo_is_empty(&tport->xmit_fifo))

drivers/tty/serial/stm32-usart.c

790

!(kfifo_is_empty(&tport->xmit_fifo) || uart_tx_stopped(port)))) {

drivers/tty/serial/stm32-usart.c

817

if (kfifo_is_empty(&tport->xmit_fifo) || uart_tx_stopped(port)) {

drivers/tty/serial/stm32-usart.c

835

if (kfifo_is_empty(&tport->xmit_fifo)) {

drivers/tty/serial/stm32-usart.c

968

if (kfifo_is_empty(&tport->xmit_fifo) && !port->x_char)

drivers/tty/serial/sunhv.c

210

if (kfifo_is_empty(&tport->xmit_fifo) || uart_tx_stopped(port))

drivers/tty/serial/sunhv.c

59

while (!kfifo_is_empty(&tport->xmit_fifo)) {

drivers/tty/serial/sunplus-uart.c

212

if (kfifo_is_empty(&tport->xmit_fifo) || uart_tx_stopped(port)) {

drivers/tty/serial/sunplus-uart.c

229

if (kfifo_is_empty(&tport->xmit_fifo))

drivers/tty/serial/sunsab.c

255

if (kfifo_is_empty(&tport->xmit_fifo) || uart_tx_stopped(&up->port)) {

drivers/tty/serial/sunsab.c

283

if (kfifo_is_empty(&tport->xmit_fifo))

drivers/tty/serial/sunsab.c

442

if (kfifo_is_empty(&tport->xmit_fifo) || uart_tx_stopped(port))

drivers/tty/serial/sunsu.c

389

if (kfifo_is_empty(&tport->xmit_fifo)) {

drivers/tty/serial/sunsu.c

405

if (kfifo_is_empty(&tport->xmit_fifo))

drivers/tty/serial/timbuart.c

119

if (kfifo_is_empty(&tport->xmit_fifo) || uart_tx_stopped(port))

drivers/tty/serial/timbuart.c

141

if (!kfifo_is_empty(&tport->xmit_fifo))

drivers/tty/serial/ucc_uart.c

361

if (kfifo_is_empty(&tport->xmit_fifo) || uart_tx_stopped(port)) {

drivers/tty/serial/ucc_uart.c

370

!kfifo_is_empty(&tport->xmit_fifo)) {

drivers/tty/serial/ucc_uart.c

388

if (kfifo_is_empty(&tport->xmit_fifo)) {

drivers/tty/serial/xilinx_uartps.c

433

if (kfifo_is_empty(&tport->xmit_fifo) || uart_tx_stopped(port)) {

drivers/tty/serial/xilinx_uartps.c

726

if (kfifo_is_empty(&port->state->port.xmit_fifo))

drivers/tty/serial/zs.c

634

if (kfifo_is_empty(&tport->xmit_fifo))

drivers/usb/gadget/function/u_serial.c

267

req->zero = kfifo_is_empty(&port->port_write_buf);

drivers/usb/serial/f81534.c

510

if (kfifo_is_empty(&port->write_fifo)) {

include/linux/kfifo.h

265

__ret = kfifo_is_empty(fifo); \

include/linux/kfifo.h

280

__ret = kfifo_is_empty(fifo); \

include/linux/kfifo.h

489

__ret = !kfifo_is_empty(__tmp); \

include/linux/kfifo.h

528

__ret = !kfifo_is_empty(__tmp); \

lib/tests/kfifo_kunit.c

115

KUNIT_EXPECT_TRUE(test, kfifo_is_empty(&my_fifo));

lib/tests/kfifo_kunit.c

145

KUNIT_EXPECT_EQ(test, kfifo_is_empty(&my_fifo1),

lib/tests/kfifo_kunit.c

146

kfifo_is_empty(&my_fifo2));

lib/tests/kfifo_kunit.c

26

KUNIT_EXPECT_TRUE(test, kfifo_is_empty(&my_fifo));

lib/tests/kfifo_kunit.c

34

KUNIT_EXPECT_TRUE(test, kfifo_is_empty(&my_fifo));

samples/kfifo/record-example.c

102

while (!kfifo_is_empty(&test)) {

sound/soc/intel/avs/debugfs.c

215

if (kfifo_is_empty(fifo)) {