Defined in 2 files as a prototype:

• arch/alpha/include/asm/delay.h, line 8 (as a prototype)
• arch/riscv/include/asm/delay.h, line 16 (as a prototype)

Defined in 12 files as a macro:

• arch/alpha/include/asm/delay.h, line 9 (as a macro)
• arch/loongarch/include/asm/delay.h, line 14 (as a macro)
• arch/m68k/include/asm/delay.h, line 123 (as a macro)
• arch/microblaze/include/asm/delay.h, line 71 (as a macro)
• arch/mips/include/asm/delay.h, line 20 (as a macro)
• arch/riscv/include/asm/delay.h, line 15 (as a macro)
• arch/s390/include/asm/delay.h, line 20 (as a macro)
• arch/sparc/include/asm/delay_32.h, line 33 (as a macro)
• arch/um/include/asm/delay.h, line 17 (as a macro)
• arch/xtensa/include/asm/delay.h, line 65 (as a macro)
• include/asm-generic/delay.h, line 33 (as a macro)
• include/linux/delay.h, line 54 (as a macro)

Defined in 5 files as a function:

• arch/alpha/lib/udelay.c, line 51 (as a function)
• arch/m68k/include/asm/delay.h, line 116 (as a function)
• arch/riscv/lib/delay.c, line 102 (as a function)
• arch/xtensa/include/asm/delay.h, line 67 (as a function)
• include/linux/delay.h, line 50 (as a function)

Referenced in 136 files:

• arch/alpha/lib/udelay.c, line 56
• arch/arm/mach-pxa/viper.c, line 596
• arch/arm/mach-qcom/platsmp.c, line 181
• arch/arm/mach-s3c/mach-rx1950.c, line 493
• arch/m68k/atari/config.c, line 664
• arch/mips/cavium-octeon/octeon-platform.c, 2 times
• arch/riscv/lib/delay.c, line 111
• arch/sh/boards/mach-se/7343/setup.c, line 100
• arch/um/include/asm/delay.h, 2 times
• arch/x86/kernel/cpu/mce/core.c, 4 times
• arch/x86/kernel/cpu/microcode/core.c, line 427
• arch/x86/kvm/lapic.c, line 1640
• drivers/acpi/apei/erst.c, line 107
• drivers/ata/libata-sff.c, line 160
• drivers/ata/pata_pdc202xx_old.c, line 42
• drivers/ata/sata_nv.c, 3 times
• drivers/bus/hisi_lpc.c, line 85
• drivers/clk/baikal-t1/ccu-div.c, line 101
• drivers/clk/mvebu/dove-divider.c, line 47
• drivers/clk/qcom/clk-spmi-pmic-div.c, 2 times
• drivers/cpufreq/s3c2440-cpufreq.c, line 205
• drivers/crypto/allwinner/sun4i-ss/sun4i-ss-hash.c, 2 times
• drivers/crypto/hifn_795x.c, line 761
• drivers/fsi/fsi-master-gpio.c, 4 times
• drivers/gpu/drm/amd/amdgpu/amdgpu_amdkfd_gfx_v10.c, 2 times
• drivers/gpu/drm/amd/amdgpu/amdgpu_amdkfd_gfx_v7.c, 2 times
• drivers/gpu/drm/amd/amdgpu/amdgpu_amdkfd_gfx_v8.c, 2 times
• drivers/gpu/drm/i915/display/intel_display_power.c, line 1247
• drivers/gpu/drm/kmb/kmb_dsi.c, 6 times
• drivers/gpu/drm/msm/dsi/phy/dsi_phy.h, line 18
• drivers/gpu/drm/msm/dsi/phy/dsi_phy_10nm.c, 2 times
• drivers/gpu/drm/msm/dsi/phy/dsi_phy_7nm.c, 2 times
• drivers/gpu/drm/nouveau/nouveau_display.c, line 109
• drivers/gpu/drm/panel/panel-samsung-s6e3ha2.c, line 405
• drivers/gpu/drm/tiny/repaper.c, line 138
• drivers/hwmon/sht15.c, 26 times
• drivers/hwspinlock/omap_hwspinlock.c, line 66
• drivers/hwspinlock/sprd_hwspinlock.c, line 70
• drivers/hwspinlock/stm32_hwspinlock.c, line 48
• drivers/hwspinlock/u8500_hsem.c, line 76
• drivers/i2c/busses/i2c-ibm_iic.c, 11 times
• drivers/i2c/busses/i2c-pca-platform.c, line 114
• drivers/i2c/busses/i2c-s3c2410.c, 2 times
• drivers/i2c/busses/i2c-synquacer.c, line 23
• drivers/i2c/i2c-core-base.c, 5 times
• drivers/iio/adc/ad7606.c, line 56
• drivers/iio/adc/aspeed_adc.c, line 250
• drivers/iio/adc/cc10001_adc.c, 3 times
• drivers/iio/adc/hx711.c, 2 times
• drivers/iio/dac/ad5766.c, 2 times
• drivers/infiniband/hw/hfi1/firmware.c, line 252
• drivers/input/touchscreen/pixcir_i2c_ts.c, line 225
• drivers/media/i2c/tvp5150.c, line 1888
• drivers/media/pci/ddbridge/ddbridge-ci.c, 2 times
• drivers/media/pci/ddbridge/ddbridge-core.c, line 2577
• drivers/media/rc/gpio-ir-tx.c, 2 times
• drivers/media/rc/serial_ir.c, 2 times
• drivers/memstick/host/jmb38x_ms.c, 2 times
• drivers/misc/eeprom/eeprom_93cx6.c, 2 times
• drivers/misc/eeprom/eeprom_93xx46.c, 2 times
• drivers/mmc/host/bcm2835.c, line 401
• drivers/mmc/host/mmci.c, line 362
• drivers/mmc/host/omap.c, 2 times
• drivers/mtd/nand/raw/ams-delta.c, 2 times
• drivers/mtd/nand/raw/au1550nd.c, line 205
• drivers/mtd/nand/raw/bcm47xxnflash/ops_bcm4706.c, line 228
• drivers/mtd/nand/raw/cafe_nand.c, line 278
• drivers/mtd/nand/raw/cs553x_nand.c, line 187
• drivers/mtd/nand/raw/davinci_nand.c, line 676
• drivers/mtd/nand/raw/diskonchip.c, 2 times
• drivers/mtd/nand/raw/fsl_upm.c, line 152
• drivers/mtd/nand/raw/fsmc_nand.c, line 686
• drivers/mtd/nand/raw/gpio.c, line 156
• drivers/mtd/nand/raw/ingenic/ingenic_nand_drv.c, line 333
• drivers/mtd/nand/raw/marvell_nand.c, line 498
• drivers/mtd/nand/raw/nand_base.c, line 662
• drivers/mtd/nand/raw/nand_legacy.c, 5 times
• drivers/mtd/nand/raw/omap2.c, line 2147
• drivers/mtd/nand/raw/pl35x-nand-controller.c, 2 times
• drivers/mtd/nand/raw/stm32_fmc2_nand.c, line 1287
• drivers/net/dsa/hirschmann/hellcreek.c, line 148
• drivers/net/dsa/realtek/realtek-smi.c, line 49
• drivers/net/ethernet/amd/xgbe/xgbe-phy-v2.c, line 1972
• drivers/net/ethernet/cavium/octeon/octeon_mgmt.c, 2 times
• drivers/net/ethernet/dnet.c, 4 times
• drivers/net/ethernet/engleder/tsnep_selftests.c, line 101
• drivers/net/ethernet/intel/ice/ice_base.c, line 955
• drivers/net/mdio/mdio-bitbang.c, 4 times
• drivers/net/wireless/marvell/libertas/if_spi.c, line 136
• drivers/pci/controller/dwc/pcie-fu740.c, line 165
• drivers/pci/controller/dwc/pcie-visconti.c, line 204
• drivers/phy/cadence/phy-cadence-torrent.c, 8 times
• drivers/platform/chrome/cros_ec_spi.c, 2 times
• drivers/pwm/pwm-bcm-iproc.c, 2 times
• drivers/pwm/pwm-bcm-kona.c, 2 times
• drivers/rtc/rtc-rs5c313.c, 9 times
• drivers/scsi/qla2xxx/qla_isr.c, line 4107
• drivers/scsi/scsi_debug.c, 16 times
• drivers/scsi/scsi_ioctl.c, 2 times
• drivers/siox/siox-bus-gpio.c, 4 times
• drivers/spi/spi-ath79.c, line 67
• drivers/spi/spi-bitbang.c, 2 times
• drivers/spi/spi-cadence-quadspi.c, line 979
• drivers/spi/spi-pic32.c, line 133
• drivers/spi/spi-ppc4xx.c, line 284
• drivers/spi/spi-pxa2xx.c, line 386
• drivers/spi/spi-sh-hspi.c, 4 times
• drivers/spi/spi-sh-sci.c, line 74
• drivers/spi/spi-uniphier.c, line 511
• drivers/spi/spi.c, line 1382
• drivers/tty/serial/8250/8250_dwlib.c, line 119
• drivers/tty/serial/sccnxp.c, 2 times
• drivers/tty/tty_io.c, 2 times
• drivers/usb/c67x00/c67x00-ll-hpi.c, 2 times
• drivers/usb/dwc3/ulpi.c, line 41
• drivers/usb/gadget/udc/m66592-udc.c, 3 times
• drivers/usb/gadget/udc/r8a66597-udc.c, 4 times
• drivers/usb/gadget/udc/tegra-xudc.c, line 1994
• drivers/usb/host/isp116x.h, line 350
• drivers/usb/host/isp1362.h, line 570
• drivers/usb/host/r8a66597-hcd.c, line 447
• drivers/usb/isp1760/isp1760-hcd.c, 7 times
• drivers/video/backlight/ktd253-backlight.c, 3 times
• drivers/w1/masters/ds2482.c, line 473
• drivers/watchdog/mena21_wdt.c, line 76
• drivers/watchdog/rzg2l_wdt.c, 2 times
• include/linux/delay.h, line 49
• include/scsi/scsi_ioctl.h, line 47
• kernel/dma/map_benchmark.c, line 73
• kernel/rcu/refscale.c, line 141
• lib/test_lockup.c, line 334
• sound/soc/codecs/adau1977.c, line 940
• sound/soc/codecs/cs4270.c, 2 times
• sound/soc/codecs/tlv320aic31xx.c, line 1226
• sound/soc/codecs/tlv320aic32x4.c, line 1390
• sound/soc/samsung/s3c2412-i2s.c, line 156