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Documented in 5 files:
- arch/s390/include/asm/bitops.h, line 367
- arch/x86/include/asm/bitops.h, line 313
- include/asm-generic/bitops/builtin-fls.h, line 5
- include/asm-generic/bitops/fls.h, line 5
- tools/include/asm-generic/bitops/fls.h, line 5
Defined in 1 files as a prototype:
Defined in 1 files as a macro:
Defined in 17 files as a function:
- arch/alpha/include/asm/bitops.h, line 394 (as a function)
- arch/arc/include/asm/bitops.h, line 256 (as a function)
- arch/arc/include/asm/bitops.h, line 299 (as a function)
- arch/csky/include/asm/bitops.h, line 42 (as a function)
- arch/hexagon/include/asm/bitops.h, line 200 (as a function)
- arch/ia64/include/asm/bitops.h, line 391 (as a function)
- arch/m68k/include/asm/bitops.h, line 503 (as a function)
- arch/mips/include/asm/bitops.h, line 387 (as a function)
- arch/openrisc/include/asm/bitops/fls.h, line 14 (as a function)
- arch/parisc/include/asm/bitops.h, line 176 (as a function)
- arch/powerpc/include/asm/bitops.h, line 217 (as a function)
- arch/s390/include/asm/bitops.h, line 374 (as a function)
- arch/sparc/lib/fls.S, line 14 (as a function)
- arch/x86/include/asm/bitops.h, line 324 (as a function)
- arch/xtensa/include/asm/bitops.h, line 70 (as a function)
- include/asm-generic/bitops/builtin-fls.h, line 12 (as a function)
- include/asm-generic/bitops/fls.h, line 13 (as a function)
Referenced in 350 files:
- arch/arc/include/asm/bitops.h, 2 times
- arch/arc/kernel/mcip.c, line 283
- arch/arm/include/asm/word-at-a-time.h, line 41
- arch/arm/kernel/setup.c, line 639
- arch/arm/mach-imx/tzic.c, line 136
- arch/arm/mach-pxa/irq.c, line 103
- arch/arm/plat-orion/pcie.c, line 171
- arch/arm/probes/uprobes/actions-arm.c, line 44
- arch/arm/vfp/vfpdouble.c, 4 times
- arch/arm/vfp/vfpsingle.c, 2 times
- arch/arm64/kernel/setup.c, line 129
- arch/arm64/lib/insn.c, line 1382
- arch/csky/include/asm/bitops.h, line 57
- arch/m68k/include/asm/bitops.h, line 515
- arch/m68k/mm/mcfmmu.c, line 191
- arch/m68k/mm/motorola.c, line 431
- arch/mips/cavium-octeon/octeon-irq.c, line 2972
- arch/mips/include/asm/bitops.h, line 445
- arch/mips/kernel/cpu-probe.c, line 792
- arch/mips/kernel/pm-cps.c, line 586
- arch/mips/kernel/traps.c, 2 times
- arch/mips/loongson2ef/common/mem.c, line 26
- arch/mips/pci/msi-xlp.c, 2 times
- arch/mips/pci/pci-lantiq.c, line 88
- arch/mips/rb532/irq.c, 2 times
- arch/powerpc/mm/book3s32/mmu.c, line 107
- arch/powerpc/net/bpf_jit_comp32.c, 4 times
- arch/powerpc/sysdev/xive/native.c, line 654
- arch/sparc/lib/NG4patch.S, line 60
- arch/sparc/lib/fls.S, 2 times
- arch/x86/crypto/camellia-x86_64-asm_64.S, 2 times
- arch/x86/events/intel/core.c, line 5573
- arch/x86/events/intel/lbr.c, line 1757
- arch/x86/kernel/apic/apic.c, line 2362
- drivers/acpi/pmic/intel_pmic_bxtwc.c, line 333
- drivers/ata/acard-ahci.c, line 414
- drivers/ata/ahci.c, line 1856
- drivers/ata/ahci_brcm.c, line 224
- drivers/ata/libahci_platform.c, line 610
- drivers/ata/libata-core.c, 7 times
- drivers/ata/libata-sata.c, line 441
- drivers/ata/libata-transport.c, 2 times
- drivers/ata/sata_highbank.c, line 521
- drivers/block/brd.c, line 461
- drivers/block/loop.c, line 2545
- drivers/block/nbd.c, line 2461
- drivers/bus/brcmstb_gisb.c, line 466
- drivers/bus/ti-sysc.c, 2 times
- drivers/char/random.c, line 1188
- drivers/clk/at91/clk-programmable.c, line 164
- drivers/clk/clk-milbeaut.c, line 297
- drivers/clk/clk-mux.c, line 164
- drivers/clk/qcom/clk-alpha-pll.c, 2 times
- drivers/clk/st/clkgen-pll.c, line 731
- drivers/clk/tegra/clk-tegra210.c, line 1631
- drivers/clk/ti/clkctrl.c, line 382
- drivers/clk/ti/divider.c, 2 times
- drivers/clk/ti/mux.c, 3 times
- drivers/clocksource/arm_arch_timer.c, line 849
- drivers/clocksource/samsung_pwm_timer.c, 3 times
- drivers/crypto/nx/nx-common-pseries.c, line 152
- drivers/dma/at_hdmac_regs.h, line 310
- drivers/dma/dw/dw.c, line 88
- drivers/dma/dw/idma32.c, line 85
- drivers/dma/imx-sdma.c, line 880
- drivers/dma/mpc512x_dma.c, line 325
- drivers/dma/tegra210-adma.c, line 545
- drivers/dma/xilinx/xilinx_dma.c, line 2803
- drivers/dma/xilinx/xilinx_dpdma.c, line 1683
- drivers/edac/amd64_edac.c, line 1900
- drivers/gpio/gpio-bcm-kona.c, line 283
- drivers/gpio/gpio-htc-egpio.c, 2 times
- drivers/gpio/gpio-menz127.c, line 53
- drivers/gpio/gpio-mxc.c, line 239
- drivers/gpio/gpio-mxs.c, line 156
- drivers/gpio/gpio-pca953x.c, line 218
- drivers/gpio/gpio-stp-xway.c, line 265
- drivers/gpu/drm/amd/amdgpu/amdgpu_device.c, line 1169
- drivers/gpu/drm/amd/amdkfd/kfd_device.c, line 766
- drivers/gpu/drm/amd/pm/powerplay/amd_powerplay.c, 2 times
- drivers/gpu/drm/amd/pm/powerplay/hwmgr/pp_psm.c, line 293
- drivers/gpu/drm/amd/pm/powerplay/hwmgr/smu10_hwmgr.c, line 971
- drivers/gpu/drm/amd/pm/powerplay/hwmgr/smu7_hwmgr.c, 2 times
- drivers/gpu/drm/amd/pm/powerplay/hwmgr/vega10_hwmgr.c, 3 times
- drivers/gpu/drm/amd/pm/powerplay/hwmgr/vega12_hwmgr.c, 3 times
- drivers/gpu/drm/amd/pm/powerplay/hwmgr/vega20_hwmgr.c, 5 times
- drivers/gpu/drm/amd/pm/swsmu/amdgpu_smu.c, 3 times
- drivers/gpu/drm/amd/pm/swsmu/smu11/arcturus_ppt.c, line 1008
- drivers/gpu/drm/amd/pm/swsmu/smu11/navi10_ppt.c, line 1453
- drivers/gpu/drm/amd/pm/swsmu/smu11/sienna_cichlid_ppt.c, line 1180
- drivers/gpu/drm/amd/pm/swsmu/smu11/vangogh_ppt.c, line 1173
- drivers/gpu/drm/amd/pm/swsmu/smu12/renoir_ppt.c, line 793
- drivers/gpu/drm/amd/pm/swsmu/smu13/aldebaran_ppt.c, line 988
- drivers/gpu/drm/amd/pm/swsmu/smu13/yellow_carp_ppt.c, line 1106
- drivers/gpu/drm/atmel-hlcdc/atmel_hlcdc_crtc.c, line 321
- drivers/gpu/drm/bridge/cadence/cdns-mhdp8546-core.c, line 637
- drivers/gpu/drm/exynos/exynos_drm_fimc.c, 2 times
- drivers/gpu/drm/i915/display/intel_tc.c, 2 times
- drivers/gpu/drm/i915/gem/i915_gem_internal.c, line 80
- drivers/gpu/drm/i915/gt/intel_gt_buffer_pool.c, line 27
- drivers/gpu/drm/i915/gt/intel_sseu_debugfs.c, 3 times
- drivers/gpu/drm/i915/gt/intel_workarounds.c, 3 times
- drivers/gpu/drm/i915/intel_pm.c, line 4066
- drivers/gpu/drm/msm/disp/dpu1/dpu_mdss.c, line 47
- drivers/gpu/drm/msm/disp/mdp5/mdp5_mdss.c, line 51
- drivers/gpu/drm/nouveau/dispnv50/disp.c, line 2753
- drivers/gpu/drm/nouveau/nvkm/engine/device/tegra.c, line 140
- drivers/hid/usbhid/hid-core.c, line 1109
- drivers/hwmon/nct6683.c, 2 times
- drivers/hwmon/nct6775.c, 3 times
- drivers/i2c/busses/i2c-at91-master.c, line 79
- drivers/iio/adc/stm32-dfsdm-adc.c, line 259
- drivers/iio/adc/vf610_adc.c, line 192
- drivers/iio/common/cros_ec_sensors/cros_ec_sensors_core.c, line 283
- drivers/iio/light/si1133.c, line 66
- drivers/iio/temperature/max31856.c, line 276
- drivers/infiniband/hw/hns/hns_roce_hw_v2.c, 3 times
- drivers/infiniband/hw/mlx4/qp.c, 2 times
- drivers/infiniband/hw/mthca/mthca_mr.c, 5 times
- drivers/infiniband/hw/mthca/mthca_qp.c, 2 times
- drivers/infiniband/hw/mthca/mthca_srq.c, line 662
- drivers/infiniband/hw/ocrdma/ocrdma_hw.c, line 557
- drivers/infiniband/hw/qedr/verbs.c, 2 times
- drivers/input/keyboard/pmic8xxx-keypad.c, line 434
- drivers/iommu/intel/iommu.c, line 706
- drivers/iommu/tegra-smmu.c, line 1118
- drivers/irqchip/irq-ath79-cpu.c, line 48
- drivers/irqchip/irq-clps711x.c, 2 times
- drivers/irqchip/irq-dw-apb-ictl.c, 2 times
- drivers/irqchip/irq-mips-cpu.c, line 141
- drivers/irqchip/irq-versatile-fpga.c, 2 times
- drivers/irqchip/irq-vic.c, 2 times
- drivers/md/bcache/bset.c, 2 times
- drivers/md/dm-integrity.c, line 3457
- drivers/md/dm-kcopyd.c, line 150
- drivers/md/dm-unstripe.c, line 89
- drivers/media/dvb-core/dvb_math.c, line 76
- drivers/media/dvb-frontends/dib8000.c, line 2033
- drivers/media/i2c/ad5820.c, line 35
- drivers/media/i2c/mt9v032.c, 2 times
- drivers/media/i2c/ov9650.c, line 877
- drivers/media/pci/cx88/cx88-input.c, line 546
- drivers/media/pci/tw5864/tw5864-h264.c, line 83
- drivers/media/platform/coda/coda-h264.c, line 208
- drivers/media/usb/uvc/uvc_status.c, line 281
- drivers/mfd/menelaus.c, line 777
- drivers/mfd/twl4030-irq.c, 2 times
- drivers/misc/echo/echo.c, line 140
- drivers/misc/sgi-gru/grutlbpurge.c, 3 times
- drivers/mmc/core/core.c, 2 times
- drivers/mmc/host/atmel-mci.c, line 685
- drivers/mmc/host/mvsdio.c, line 90
- drivers/mmc/host/pxamci.c, line 467
- drivers/mmc/host/sh_mmcif.c, 2 times
- drivers/mtd/nand/bbt.c, 3 times
- drivers/mtd/nand/core.c, 2 times
- drivers/mtd/nand/ecc-sw-bch.c, 4 times
- drivers/mtd/nand/raw/atmel/nand-controller.c, line 79
- drivers/mtd/nand/raw/atmel/pmecc.c, 3 times
- drivers/mtd/nand/raw/bcm47xxnflash/ops_bcm4706.c, line 430
- drivers/mtd/nand/raw/cadence-nand-controller.c, line 1057
- drivers/mtd/nand/raw/denali.c, line 918
- drivers/mtd/nand/raw/ingenic/ingenic_nand_drv.c, line 193
- drivers/mtd/nand/raw/intel-nand-controller.c, 3 times
- drivers/mtd/nand/raw/meson_nand.c, line 206
- drivers/mtd/nand/raw/mxc_nand.c, line 1291
- drivers/mtd/nand/raw/mxic_nand.c, 2 times
- drivers/mtd/nand/raw/nand_base.c, 2 times
- drivers/mtd/nand/raw/nand_jedec.c, 2 times
- drivers/mtd/nand/raw/nand_onfi.c, 2 times
- drivers/mtd/nand/raw/rockchip-nand-controller.c, 2 times
- drivers/mtd/nand/raw/sunxi_nand.c, 2 times
- drivers/mtd/nand/spi/core.c, line 848
- drivers/mtd/spi-nor/core.c, 2 times
- drivers/mux/mmio.c, line 93
- drivers/net/can/c_can/c_can_main.c, 2 times
- drivers/net/can/dev/rx-offload.c, line 312
- drivers/net/can/spi/mcp251xfd/mcp251xfd-core.c, line 471
- drivers/net/dsa/b53/b53_common.c, line 2638
- drivers/net/dsa/microchip/ksz8795.c, 2 times
- drivers/net/ethernet/aquantia/atlantic/aq_ring.c, line 175
- drivers/net/ethernet/atheros/ag71xx.c, line 399
- drivers/net/ethernet/chelsio/cxgb3/t3_hw.c, 6 times
- drivers/net/ethernet/chelsio/cxgb4/t4_hw.c, 4 times
- drivers/net/ethernet/chelsio/libcxgb/libcxgb_ppm.c, line 518
- drivers/net/ethernet/chelsio/libcxgb/libcxgb_ppm.h, line 296
- drivers/net/ethernet/cisco/enic/enic_main.c, line 2947
- drivers/net/ethernet/emulex/benet/be_cmds.c, 3 times
- drivers/net/ethernet/huawei/hinic/hinic_hw_api_cmd.c, line 34
- drivers/net/ethernet/intel/e1000/e1000_main.c, line 3139
- drivers/net/ethernet/intel/fm10k/fm10k_ethtool.c, line 1107
- drivers/net/ethernet/intel/fm10k/fm10k_iov.c, 2 times
- drivers/net/ethernet/intel/fm10k/fm10k_main.c, 4 times
- drivers/net/ethernet/intel/fm10k/fm10k_netdev.c, 6 times
- drivers/net/ethernet/intel/fm10k/fm10k_pci.c, 6 times
- drivers/net/ethernet/intel/i40e/i40e_main.c, line 7552
- drivers/net/ethernet/marvell/mv643xx_eth.c, line 2271
- drivers/net/ethernet/marvell/mvneta.c, 2 times
- drivers/net/ethernet/marvell/mvpp2/mvpp2_main.c, 2 times
- drivers/net/ethernet/marvell/octeontx2/af/rvu_nix.c, line 2840
- drivers/net/ethernet/mellanox/mlx4/mr.c, 2 times
- drivers/net/ethernet/mellanox/mlxsw/spectrum_dcb.c, 3 times
- drivers/net/ethernet/mellanox/mlxsw/spectrum_qdisc.c, line 761
- drivers/net/ethernet/netronome/nfp/bpf/jit.c, line 1568
- drivers/net/ethernet/netronome/nfp/nfpcore/nfp6000_pcie.c, line 590
- drivers/net/ethernet/pensando/ionic/ionic_phc.c, line 579
- drivers/net/ethernet/sfc/efx_common.c, line 881
- drivers/net/ethernet/sfc/falcon/efx.c, line 2517
- drivers/net/ipa/ipa_endpoint.c, 2 times
- drivers/net/netdevsim/ethtool.c, line 104
- drivers/net/wireguard/allowedips.c, line 88
- drivers/net/wireless/ath/ath10k/mac.c, 3 times
- drivers/net/wireless/ath/ath11k/dp.c, 2 times
- drivers/net/wireless/ath/ath11k/mac.c, 3 times
- drivers/net/wireless/ath/ath9k/ar9003_paprd.c, line 409
- drivers/net/wireless/broadcom/b43/phy_lp.c, 2 times
- drivers/net/wireless/broadcom/b43/phy_n.c, 3 times
- drivers/net/wireless/broadcom/brcm80211/brcmsmac/phy/phy_cmn.c, line 2509
- drivers/net/wireless/intel/iwlegacy/3945-rs.c, line 637
- drivers/net/wireless/intel/iwlegacy/4965-rs.c, line 2197
- drivers/net/wireless/intel/iwlegacy/common.c, line 1506
- drivers/net/wireless/intel/iwlwifi/dvm/rs.c, line 2699
- drivers/net/wireless/intel/iwlwifi/dvm/scan.c, line 912
- drivers/net/wireless/mediatek/mt76/mt7615/mcu.c, 2 times
- drivers/net/wireless/mediatek/mt76/mt76x02_util.c, 2 times
- drivers/net/wireless/mediatek/mt76/mt7915/mcu.c, 4 times
- drivers/net/wireless/mediatek/mt76/mt7921/mcu.c, 2 times
- drivers/net/wireless/mediatek/mt7601u/phy.c, line 609
- drivers/net/wireless/mediatek/mt7601u/tx.c, 2 times
- drivers/net/wireless/ralink/rt2x00/rt2x00mac.c, 2 times
- drivers/net/wireless/realtek/rtl818x/rtl8180/dev.c, 6 times
- drivers/net/wireless/realtek/rtl818x/rtl8187/dev.c, 2 times
- drivers/net/wireless/realtek/rtl8xxxu/rtl8xxxu_core.c, 2 times
- drivers/net/wireless/realtek/rtlwifi/base.c, 2 times
- drivers/net/wireless/realtek/rtw88/coex.c, 5 times
- drivers/ntb/hw/mscc/ntb_hw_switchtec.c, line 880
- drivers/pci/controller/dwc/pci-meson.c, line 257
- drivers/pci/controller/pci-mvebu.c, 3 times
- drivers/pci/controller/pcie-mediatek-gen3.c, line 228
- drivers/pci/controller/pcie-mediatek.c, line 732
- drivers/pci/endpoint/pci-epc-mem.c, line 31
- drivers/pinctrl/pinctrl-falcon.c, 2 times
- drivers/pinctrl/pinctrl-single.c, line 731
- drivers/pinctrl/samsung/pinctrl-exynos.c, line 492
- drivers/pinctrl/samsung/pinctrl-s3c64xx.c, 3 times
- drivers/pinctrl/stm32/pinctrl-stm32.c, line 1346
- drivers/platform/chrome/cros_ec_proto.c, 2 times
- drivers/pwm/pwm-atmel.c, line 144
- drivers/pwm/pwm-samsung.c, line 128
- drivers/pwm/pwm-visconti.c, line 90
- drivers/regulator/rtmv20-regulator.c, line 241
- drivers/reset/reset-k210.c, line 112
- drivers/rtc/rtc-ds1307.c, line 298
- drivers/rtc/rtc-max8997.c, line 87
- drivers/scsi/be2iscsi/be_cmds.c, line 844
- drivers/scsi/csiostor/csio_wr.c, line 1376
- drivers/soc/dove/pmu.c, line 241
- drivers/spi/spi-fsl-qspi.c, line 159
- drivers/spi/spi-imx.c, 2 times
- drivers/spi/spi-mxic.c, 5 times
- drivers/spi/spi-nxp-fspi.c, line 294
- drivers/spi/spi-orion.c, 2 times
- drivers/spi/spi-stm32.c, 2 times
- drivers/spi/spi.c, line 293
- drivers/staging/greybus/audio_topology.c, line 455
- drivers/staging/media/atomisp/pci/hmm/hmm_bo.c, line 55
- drivers/staging/media/ipu3/ipu3-css-params.c, 2 times
- drivers/staging/media/ipu3/ipu3-css.c, 2 times
- drivers/staging/vt6656/card.c, 2 times
- drivers/thermal/armada_thermal.c, line 383
- drivers/tty/serial/8250/8250_dwlib.c, line 103
- drivers/tty/serial/fsl_lpuart.c, line 1230
- drivers/tty/serial/max310x.c, line 840
- drivers/tty/serial/sh-sci.c, line 95
- drivers/usb/cdns3/cdnsp-gadget.c, line 756
- drivers/usb/cdns3/cdnsp-mem.c, line 819
- drivers/usb/core/config.c, 3 times
- drivers/usb/gadget/udc/atmel_usba_udc.c, 2 times
- drivers/usb/gadget/udc/bdc/bdc_cmd.c, line 197
- drivers/usb/gadget/udc/bdc/bdc_core.c, line 235
- drivers/usb/host/xhci-mem.c, 2 times
- drivers/usb/host/xhci.c, line 1469
- drivers/vfio/pci/vfio_pci_intrs.c, line 282
- drivers/video/backlight/pwm_bl.c, line 206
- drivers/video/fbdev/aty/atyfb.h, line 351
- drivers/xen/balloon.c, line 117
- drivers/xen/mem-reservation.c, line 26
- fs/9p/vfs_super.c, line 66
- fs/ceph/inode.c, line 859
- fs/ext4/mballoc.c, 4 times
- fs/fscache/object.c, 2 times
- fs/nfs/flexfilelayout/flexfilelayout.c, 49 times
- fs/nfs/flexfilelayout/flexfilelayout.h, 3 times
- fs/ubifs/lpt.c, 6 times
- fs/ubifs/super.c, 2 times
- fs/xfs/libxfs/xfs_bit.h, line 32
- include/asm-generic/bitops/fls64.h, 2 times
- include/asm-generic/getorder.h, line 44
- include/linux/bitops.h, 3 times
- include/linux/count_zeros.h, line 26
- include/linux/log2.h, line 24
- include/linux/sched.h, line 1542
- include/net/red.h, 2 times
- kernel/bpf/lpm_trie.c, 3 times
- kernel/sched/fair.c, 2 times
- kernel/time/timekeeping_debug.c, line 49
- kernel/trace/ftrace.c, 2 times
- kernel/trace/tracing_map.c, 2 times
- lib/bch.c, line 345
- lib/clz_ctz.c, 2 times
- lib/math/div64.c, 2 times
- lib/math/reciprocal_div.c, 2 times
- lib/test_vmalloc.c, line 215
- mm/percpu.c, line 236
- mm/slab.c, 2 times
- mm/slab_common.c, line 744
- mm/slub.c, line 3546
- mm/vmalloc.c, line 1594
- mm/vmstat.c, 2 times
- net/mac80211/sta_info.c, 2 times
- net/netfilter/ipset/ip_set_hash_gen.h, line 1518
- net/netfilter/ipvs/ip_vs_mh.c, line 369
- net/netfilter/xt_recent.c, line 745
- net/sched/cls_flow.c, line 425
- net/sched/sch_qfq.c, line 808
- net/smc/smc_stats.h, line 142
- net/sunrpc/auth.c, line 70
- net/vmw_vsock/vmci_transport.c, line 1075
- sound/core/jack.c, 2 times
- sound/drivers/pcsp/pcsp.c, line 70
- sound/pci/hda/patch_ca0132.c, 19 times
- sound/soc/atmel/mchp-i2s-mcc.c, 3 times
- sound/soc/bcm/bcm2835-i2s.c, line 325
- sound/soc/codecs/88pm860x-codec.c, 2 times
- sound/soc/codecs/ab8500-codec.c, 2 times
- sound/soc/codecs/da7218.c, line 2038
- sound/soc/codecs/da7219.c, line 1442
- sound/soc/codecs/max98090.c, 2 times
- sound/soc/codecs/nau8825.c, line 364
- sound/soc/codecs/pcm512x.c, line 719
- sound/soc/codecs/rt715-sdca.c, line 358
- sound/soc/codecs/tlv320aic3x.c, line 162
- sound/soc/codecs/twl4030.c, 4 times
- sound/soc/codecs/wsa881x.c, line 747
- sound/soc/meson/axg-card.c, 2 times
- sound/soc/soc-dapm.c, 5 times
- sound/soc/soc-ops.c, 6 times
- tools/include/asm-generic/bitops/fls64.h, 2 times
- tools/include/linux/bitops.h, line 60
- tools/include/linux/log2.h, line 23