Defined in 10 files as a prototype:

• Documentation/translations/zh_TW/process/4.Coding.rst, line 339 (as a prototype)
• arch/arm/boot/dts/nxp/imx/imx6q-dmo-edmqmx6.dts, line 274 (as a prototype)
• arch/arm/boot/dts/nxp/imx/imx6qdl-tx6-lvds.dtsi, line 295 (as a prototype)
• arch/arm64/boot/dts/amlogic/meson-sm1.dtsi, line 207 (as a prototype)
• drivers/accel/habanalabs/gaudi2/gaudi2_security.c, line 207 (as a prototype)
• drivers/iio/adc/nau7802.c, line 304 (as a prototype)
• drivers/iio/chemical/ams-iaq-core.c, line 207 (as a prototype)
• drivers/phy/samsung/phy-exynos5250-usb2.c, line 347 (as a prototype)
• drivers/pmdomain/renesas/rmobile-sysc.c, line 260 (as a prototype)
• fs/hfsplus/xattr.c, line 295 (as a prototype)

Defined in 11 files as a macro:

• arch/arm/include/asm/bitops.h, line 205 (as a macro)
• arch/arm/include/asm/bitops.h, line 214 (as a macro)
• arch/m68k/include/asm/bitops.h, line 462 (as a macro)
• drivers/clk/sophgo/Kconfig, line 262 (as a macro)
• drivers/clk/sophgo/Kconfig, line 281 (as a macro)
• drivers/pmdomain/renesas/rmobile-sysc.c, line 274 (as a macro)
• drivers/scsi/mpt3sas/mpt3sas_base.c, line 369 (as a macro)
• net/wireless/core.h, line 262 (as a macro)
• net/wireless/core.h, line 281 (as a macro)
• rust/kernel/sync/lock/mutex.rs, line 262 (as a macro)
• rust/kernel/sync/lock/mutex.rs, line 281 (as a macro)

Defined in 55 files as a function:

• Documentation/devicetree/bindings/arm/mediatek/mediatek,mipi0a.txt, line 362 (as a function)
• Documentation/power/regulator/consumer.rst, line 421 (as a function)
• arch/alpha/lib/ev6-memset.S, line 59 (as a function)
• arch/arm/boot/dts/marvell/armada-39x.dtsi, line 245 (as a function)
• arch/arm/configs/vexpress_defconfig, line 248 (as a function)
• arch/arm64/boot/dts/amlogic/meson-g12b-odroid-n2.dtsi, line 369 (as a function)
• arch/arm64/boot/dts/arm/vexpress-v2f-1xv7-ca53x2.dts, line 231 (as a function)
• arch/arm64/boot/dts/nvidia/tegra234-p3767.dtsi, line 734 (as a function)
• arch/m68k/include/asm/bitops.h, line 434 (as a function)
• arch/riscv/mm/kasan_init.c, line 412 (as a function)
• arch/um/drivers/chan_user.h, line 344 (as a function)
• arch/um/include/shared/registers.h, line 198 (as a function)
• arch/x86/crypto/sha1_ssse3_glue.c, line 364 (as a function)
• drivers/ata/pata_parport/on20.c, line 416 (as a function)
• drivers/block/zram/zcomp.h, line 646 (as a function)
• drivers/block/zram/zcomp.h, line 871 (as a function)
• drivers/clk/renesas/r8a77995-cpg-mssr.c, line 362 (as a function)
• drivers/clk/spear/spear1310_clock.c, line 198 (as a function)
• drivers/clk/sunxi-ng/ccu-sun6i-rtc.c, line 245 (as a function)
• drivers/cpufreq/intel_pstate.c, line 231 (as a function)
• drivers/crypto/intel/qat/qat_4xxx/Makefile, line 736 (as a function)
• drivers/gpio/gpio-rockchip.c, line 613 (as a function)
• drivers/gpio/gpio-zynq.c, line 628 (as a function)
• drivers/gpu/drm/amd/display/dc/dce/Makefile, line 412 (as a function)
• drivers/gpu/drm/amd/pm/swsmu/smu13/smu_v13_0_7_ppt.c, line 392 (as a function)
• drivers/iio/imu/inv_icm42600/inv_icm42600_gyro.c, line 392 (as a function)
• drivers/media/pci/intel/ivsc/Makefile, line 362 (as a function)
• drivers/net/ethernet/broadcom/bnxt/bnxt_xdp.c, line 51 (as a function)
• drivers/net/ethernet/google/gve/gve.h, line 112 (as a function)
• drivers/net/ethernet/via/via-velocity.c, line 356 (as a function)
• drivers/pci/access.c, line 237 (as a function)
• drivers/pinctrl/samsung/pinctrl-exynos-arm64.c, line 345 (as a function)
• drivers/power/supply/twl4030_madc_battery.c, line 392 (as a function)
• drivers/ptp/ptp_kvm_common.c, line 298 (as a function)
• fs/xfs/libxfs/xfs_rtbitmap.h, line 364 (as a function)
• fs/xfs/scrub/common.h, line 412 (as a function)
• fs/xfs/scrub/iscan.h, line 736 (as a function)
• fs/xfs/xfs_error.c, line 356 (as a function)
• include/linux/find.h, line 56 (as a function)
• include/linux/firmware/qcom/qcom_qseecom.h, line 420 (as a function)
• include/linux/memblock.h, line 505 (as a function)
• include/net/inet6_hashtables.h, line 430 (as a function)
• include/net/netfilter/nf_conntrack_helper.h, line 305 (as a function)
• lib/bitmap.c, line 369 (as a function)
• rust/kernel/block/mq/gen_disk.rs, line 510 (as a function)
• samples/acrn/vm-sample.c, line 245 (as a function)
• sound/soc/codecs/ak4613.c, line 237 (as a function)
• tools/include/linux/find.h, line 33 (as a function)
• tools/perf/pmu-events/arch/x86/ivytown/uncore-cache.json, line 51 (as a function)
• tools/perf/util/cgroup.h, line 421 (as a function)
• tools/perf/util/pmu.c, line 9 (as a function)
• tools/testing/selftests/alsa/alsa-local.h, line 613 (as a function)
• tools/testing/selftests/alsa/mixer-test.c, line 112 (as a function)
• tools/testing/selftests/net/so_txtime.sh, line 712 (as a function)
• tools/testing/selftests/tc-testing/config, line 356 (as a function)

Referenced in 130 files:

• arch/arm64/kernel/fpsimd.c, line 531
• arch/hexagon/kernel/smp.c, line 43
• arch/loongarch/kvm/exit.c, line 766
• arch/loongarch/kvm/interrupt.c, 2 times
• arch/mips/kvm/interrupt.c, 2 times
• arch/powerpc/kernel/iommu.c, 3 times
• arch/powerpc/kvm/book3s.c, line 412
• arch/powerpc/kvm/booke.c, line 700
• arch/powerpc/kvm/guest-state-buffer.c, line 467
• arch/powerpc/kvm/mpic.c, line 298
• arch/powerpc/platforms/pasemi/dma_lib.c, line 122
• arch/powerpc/platforms/powernv/pci-ioda.c, line 334
• arch/s390/kvm/kvm-s390.c, line 2241
• arch/x86/events/amd/ibs.c, line 1075
• arch/x86/kernel/cpu/resctrl/ctrlmondata.c, line 122
• arch/x86/kernel/cpu/resctrl/monitor.c, line 390
• arch/x86/kernel/cpu/topology.c, 2 times
• arch/x86/kvm/lapic.c, line 1114
• arch/x86/kvm/svm/sev.c, line 109
• drivers/block/mtip32xx/mtip32xx.c, line 2548
• drivers/block/rnbd/rnbd-clt.c, line 166
• drivers/block/xen-blkfront.c, line 470
• drivers/dma/ste_dma40.c, line 1682
• drivers/dma/ti/omap-dma.c, line 1536
• drivers/gpu/drm/display/drm_dp_tunnel.c, line 207
• drivers/gpu/drm/i915/gt/intel_sseu.h, line 144
• drivers/gpu/drm/omapdrm/tcm-sita.c, line 53
• drivers/gpu/drm/vmwgfx/vmwgfx_binding.c, 3 times
• drivers/gpu/drm/vmwgfx/vmwgfx_page_dirty.c, line 327
• drivers/gpu/drm/xe/xe_gt_topology.c, line 247
• drivers/hid/intel-ish-hid/ishtp/hbm.c, line 199
• drivers/iio/industrialio-buffer.c, 2 times
• drivers/infiniband/core/uverbs_ioctl.c, 2 times
• drivers/infiniband/hw/hfi1/fault.c, line 190
• drivers/input/rmi4/rmi_driver.c, 2 times
• drivers/md/bcache/journal.c, line 228
• drivers/md/bcache/writeback.c, line 666
• drivers/md/dm-clone-metadata.c, line 744
• drivers/md/dm-writecache.c, line 510
• drivers/md/dm-zoned-metadata.c, line 2657
• drivers/misc/mei/hbm.c, line 737
• drivers/net/dsa/mv88e6xxx/devlink.c, line 402
• drivers/net/ethernet/aquantia/atlantic/aq_filters.c, line 381
• drivers/net/ethernet/broadcom/bnxt/bnxt_sriov.c, line 1176
• drivers/net/ethernet/chelsio/cxgb4/cxgb4_filter.c, 2 times
• drivers/net/ethernet/chelsio/cxgb4/cxgb4_tc_u32.c, 2 times
• drivers/net/ethernet/huawei/hinic/hinic_main.c, 3 times
• drivers/net/ethernet/intel/fm10k/fm10k_netdev.c, line 915
• drivers/net/ethernet/intel/i40e/i40e_virtchnl_pf.c, line 434
• drivers/net/ethernet/marvell/octeontx2/af/rvu_cpt.c, line 53
• drivers/net/ethernet/marvell/octeontx2/af/rvu_npc.c, 4 times
• drivers/net/ethernet/mellanox/mlx4/cmd.c, line 2251
• drivers/net/ethernet/mellanox/mlx5/core/en_rx.c, 2 times
• drivers/net/ethernet/mellanox/mlxsw/spectrum1_kvdl.c, line 287
• drivers/net/ethernet/microchip/lan966x/lan966x_taprio.c, line 360
• drivers/net/wireless/realtek/rtw88/sec.c, line 113
• drivers/net/wireless/realtek/rtw89/chan.c, line 2460
• drivers/pci/controller/dwc/pci-dra7xx.c, line 221
• drivers/pci/controller/dwc/pcie-designware-host.c, line 76
• drivers/pnp/manager.c, line 161
• drivers/rapidio/rio-scan.c, line 141
• drivers/scsi/lpfc/lpfc_sli.c, line 20317
• drivers/scsi/scsi_debug.c, line 4133
• drivers/soc/qcom/rpmh-rsc.c, line 791
• drivers/staging/media/tegra-video/vi.c, line 408
• drivers/tty/n_tty.c, line 2040
• drivers/tty/vt/keyboard.c, 2 times
• drivers/tty/vt/vt.c, line 2259
• drivers/virtio/virtio_mem.c, line 566
• drivers/xen/grant-table.c, line 236
• fs/bcachefs/btree_iter.h, line 79
• fs/bcachefs/sb-members.h, line 76
• fs/btrfs/misc.h, line 162
• fs/btrfs/subpage.c, line 837
• fs/f2fs/gc.c, line 820
• fs/f2fs/segment.c, line 2171
• fs/f2fs/segment.h, 3 times
• fs/ocfs2/cluster/heartbeat.c, 4 times
• fs/ocfs2/cluster/netdebug.c, line 443
• fs/ocfs2/dlm/dlmcommon.h, line 1104
• fs/ocfs2/dlm/dlmdebug.c, 2 times
• fs/ocfs2/dlm/dlmdomain.c, 8 times
• fs/ocfs2/dlm/dlmmaster.c, 6 times
• fs/ocfs2/dlm/dlmrecovery.c, line 742
• fs/ocfs2/stack_o2cb.c, line 294
• fs/omfs/bitmap.c, line 33
• fs/xfs/scrub/attr.c, line 283
• include/linux/bitmap.h, 2 times
• include/linux/cpumask.h, line 222
• include/linux/find.h, 11 times
• include/linux/netdevice.h, 3 times
• include/linux/nodemask.h, line 272
• include/linux/sbitmap.h, line 283
• include/linux/xarray.h, line 1740
• kernel/bpf/helpers.c, line 2916
• kernel/irq/irq_sim.c, line 138
• kernel/locking/lockdep.c, line 3666
• kernel/power/snapshot.c, line 937
• kernel/rcu/rcu.h, line 421
• kernel/sched/topology.c, line 1890
• kernel/sysctl.c, line 1460
• kernel/time/timer.c, 2 times
• kernel/trace/pid_list.c, line 301
• lib/bitmap-str.c, line 505
• lib/bitmap.c, line 430
• lib/find_bit.c, 2 times
• lib/find_bit_benchmark.c, line 78
• lib/genalloc.c, line 765
• lib/math/prime_numbers.c, 2 times
• lib/test_bitmap.c, 2 times
• lib/xarray.c, line 136
• mm/cma.c, line 394
• mm/cma_debug.c, line 61
• mm/percpu-stats.c, 2 times
• mm/percpu.c, 5 times
• mm/vmscan.c, line 3502
• net/core/flow_dissector.c, line 490
• net/ethtool/ioctl.c, line 371
• net/mac802154/scan.c, line 122
• net/ncsi/ncsi-netlink.c, line 83
• net/netfilter/ipvs/ip_vs_est.c, line 439
• net/netfilter/nf_conncount.c, line 501
• net/sctp/tsnmap.c, line 284
• security/selinux/ss/ebitmap.h, line 72
• sound/soc/fsl/fsl_sai.c, line 1269
• tools/include/linux/bitops.h, 3 times
• tools/include/linux/find.h, line 22
• tools/lib/bitmap.c, line 42
• tools/lib/find_bit.c, line 102
• tools/testing/selftests/drivers/net/mlxsw/qos_mc_aware.sh, line 582