Defined in 8 files as a prototype:

• contrib/binutils/bfd/sysdep.h, line 114 (as a prototype)
• contrib/binutils/gas/as.h, line 168 (as a prototype)
• contrib/binutils/include/libiberty.h, line 177 (as a prototype)
• contrib/libpcap/lbl/os-aix4.h, line 23 (as a prototype)
• contrib/libpcap/lbl/os-aix7.h, line 23 (as a prototype)
• contrib/libpcap/lbl/os-hpux11.h, line 23 (as a prototype)
• include/strings.h, line 52 (as a prototype)
• sys/sys/libkern.h, line 136 (as a prototype)

Defined in 1 files as a member:

• contrib/netbsd-tests/include/sys/t_bitops.c, line 46 (as a member)

Defined in 2 files as a macro:

• stand/kshim/bsd_kernel.h, line 134 (as a macro)
• sys/amd64/include/cpufunc.h, line 163 (as a macro)

Defined in 10 files as a function:

• contrib/binutils/libiberty/ffs.c, line 14 (as a function)
• lib/libc/arm/string/ffs.S, line 47 (as a function)
• lib/libc/i386/string/ffs.S, line 45 (as a function)
• lib/libc/string/ffs.c, line 44 (as a function)
• sys/arm/include/cpufunc.h, line 365 (as a function)
• sys/arm64/include/cpufunc.h, line 44 (as a function)
• sys/i386/include/cpufunc.h, line 216 (as a function)
• sys/libkern/arm/ffs.S, line 49 (as a function)
• sys/libkern/ffs.c, line 41 (as a function)
• usr.sbin/makefs/makefs.c, line 78 (as a function)

Referenced in 140 files:

• bin/pax/options.c, line 1289
• contrib/binutils/bfd/elflink.c, line 4134
• contrib/binutils/gas/config/tc-alpha.c, 2 times
• contrib/binutils/gas/config/tc-arm.c, 2 times
• contrib/binutils/gas/config/tc-score.c, line 6503
• contrib/binutils/gas/dwarf2dbg.c, 3 times
• contrib/bmake/targ.c, line 393
• contrib/jemalloc/include/jemalloc/internal/bit_util.h, 3 times
• contrib/jemalloc/include/jemalloc/jemalloc.h, 3 times
• contrib/libedit/tty.c, line 1269
• contrib/libpcap/optimize.c, 2 times
• contrib/netbsd-tests/fs/common/h_fsmacros.h, 5 times
• contrib/netbsd-tests/fs/ffs/t_mount.c, 2 times
• contrib/netbsd-tests/include/sys/t_bitops.c, 7 times
• contrib/ofed/libmlx4/mlx4.c, line 183
• contrib/ofed/libmlx4/srq.c, line 179
• lib/libc/arm/string/ffs.S, line 83
• lib/libc/i386/string/ffs.S, line 54
• lib/libc/locale/xlocale.c, line 356
• lib/libc/mips/string/ffs.S, 2 times
• lib/libifconfig/libifconfig_inet.c, line 52
• lib/libifconfig/libifconfig_inet6.c, line 53
• lib/libpmc/libpmc.c, line 1620
• sbin/dump/main.c, 2 times
• stand/kshim/bsd_kernel.h, line 133
• stand/libsa/dosfs.c, line 512
• sys/arm/allwinner/a10_dmac.c, line 187
• sys/arm/arm/pmap-v6.c, 3 times
• sys/arm/broadcom/bcm2835/bcm2835_gpio.c, line 919
• sys/arm/broadcom/bcm2835/bcm2835_intr.c, 3 times
• sys/arm/broadcom/bcm2835/bcm2838_pci.c, line 398
• sys/arm/include/runq.h, line 41
• sys/arm/mv/ic.c, 3 times
• sys/arm/mv/mpic.c, 3 times
• sys/arm/nvidia/as3722_regulators.c, 3 times
• sys/arm/nvidia/tegra124/tegra124_clk_pll.c, line 446
• sys/arm/nvidia/tegra_pcie.c, line 567
• sys/cam/ctl/ctl_error.c, 2 times
• sys/cam/scsi/scsi_enc.c, line 771
• sys/cam/scsi/scsi_sa.c, 2 times
• sys/compat/linuxkpi/common/include/linux/bitops.h, line 69
• sys/contrib/ck/include/ck_cc.h, line 122
• sys/contrib/ena-com/ena_plat.h, line 406
• sys/contrib/zstd/lib/freebsd/zstd_kfreebsd.c, line 72
• sys/dev/acpica/acpi_hpet.c, line 665
• sys/dev/agp/agp_amd.c, line 329
• sys/dev/agp/agp_ati.c, line 308
• sys/dev/agp/agp_sis.c, line 220
• sys/dev/ahci/ahci.c, 3 times
• sys/dev/aic7xxx/aic79xx.c, line 10170
• sys/dev/aic7xxx/aic7xxx.c, line 7673
• sys/dev/ath/ath_rate/sample/sample.c, line 1377
• sys/dev/bnxt/bnxt_sysctl.c, line 960
• sys/dev/cfi/cfi_core.c, line 670
• sys/dev/cxgbe/iw_cxgbe/mem.c, line 491
• sys/dev/cxgbe/t4_main.c, 2 times
• sys/dev/cxgbe/t4_netmap.c, line 775
• sys/dev/cxgbe/t4_sge.c, line 5810
• sys/dev/cxgbe/t4_vf.c, line 652
• sys/dev/esp/ncr53c9x.c, line 1679
• sys/dev/gpio/pl061.c, line 431
• sys/dev/hyperv/netvsc/hn_rndis.c, line 499
• sys/dev/iwm/if_iwm.c, line 4398
• sys/dev/ixl/ixl_pf_iov.c, 2 times
• sys/dev/le/am7990.c, 2 times
• sys/dev/le/am79900.c, 2 times
• sys/dev/mlx4/mlx4_core/mlx4_fw.c, line 1522
• sys/dev/mlx4/mlx4_core/mlx4_mr.c, line 1058
• sys/dev/mlx5/mlx5_core/mlx5_cmd.c, line 1198
• sys/dev/mn/if_mn.c, line 474
• sys/dev/mthca/mthca_allocator.c, line 85
• sys/dev/mthca/mthca_cmd.c, line 678
• sys/dev/mthca/mthca_cq.c, line 831
• sys/dev/mthca/mthca_eq.c, line 535
• sys/dev/mthca/mthca_profile.c, 5 times
• sys/dev/mthca/mthca_provider.c, line 938
• sys/dev/mvs/mvs.c, 3 times
• sys/dev/pci/pci.c, line 2624
• sys/dev/qat/qat.c, line 1135
• sys/dev/sdhci/fsl_sdhci.c, line 599
• sys/dev/sound/pci/hda/hdaa.c, 2 times
• sys/dev/sound/pcm/mixer.c, line 363
• sys/dev/sume/if_sume.c, line 247
• sys/dev/usb/controller/dwc_otg.c, line 2706
• sys/dev/usb/controller/saf1761_otg.c, 3 times
• sys/dev/virtio/network/if_vtnet.c, line 3524
• sys/dev/vt/hw/efifb/efifb.c, 3 times
• sys/fs/cd9660/cd9660_vfsops.c, line 369
• sys/fs/ext2fs/ext2_alloc.c, 3 times
• sys/fs/msdosfs/msdosfs_fat.c, 4 times
• sys/fs/msdosfs/msdosfs_vfsops.c, 2 times
• sys/fs/udf/udf_vfsops.c, line 417
• sys/geom/cache/g_cache.c, line 496
• sys/geom/part/g_part.c, 2 times
• sys/geom/raid/md_ddf.c, line 2780
• sys/geom/raid/md_nvidia.c, line 1450
• sys/geom/raid/md_promise.c, line 1764
• sys/i386/i386/k6_mem.c, 2 times
• sys/i386/include/cpufunc.h, line 232
• sys/i386/include/runq.h, line 41
• sys/i386/pci/pci_pir.c, line 521
• sys/isa/isa_common.c, line 268
• sys/isa/pnp.c, 2 times
• sys/kern/kern_sig.c, line 665
• sys/kern/subr_blist.c, line 218
• sys/libkern/arm/ffs.S, line 86
• sys/mips/include/runq.h, line 50
• sys/mips/mips/mp_machdep.c, line 131
• sys/mips/mips/support.S, 2 times
• sys/mips/nlm/dev/net/ucore/ucore.h, 2 times
• sys/net/netisr.c, line 963
• sys/net/route/route_ddb.c, line 155
• sys/netpfil/ipfw/dn_sched_prio.c, line 126
• sys/netpfil/ipfw/dn_sched_qfq.c, 2 times
• sys/netpfil/ipfw/nat64/nat64lsn.c, line 1102
• sys/netpfil/ipfw/test/main.c, line 673
• sys/powerpc/aim/mmu_oea.c, line 1753
• sys/powerpc/aim/mmu_oea64.c, line 2480
• sys/powerpc/mpc85xx/fsl_sata.c, 2 times
• sys/powerpc/powerpc/mp_machdep.c, line 310
• sys/riscv/riscv/mp_machdep.c, line 334
• sys/security/mac/mac_framework.c, line 537
• sys/ufs/ffs/ffs_alloc.c, 2 times
• sys/ufs/ffs/ffs_softdep.c, line 2543
• sys/ufs/ffs/ffs_vfsops.c, line 2660
• sys/vm/vm_phys.c, line 722
• sys/x86/iommu/intel_qi.c, line 297
• sys/x86/x86/local_apic.c, 2 times
• sys/x86/x86/mptable.c, line 993
• tools/tools/cxgbtool/cxgbtool.c, line 1316
• usr.sbin/bhyve/pci_e82545.c, line 375
• usr.sbin/bhyve/pci_emul.c, line 785
• usr.sbin/makefs/ffs/ufs_bmap.c, line 79
• usr.sbin/makefs/makefs.h, line 187
• usr.sbin/makefs/msdos/msdosfs_fat.c, 4 times
• usr.sbin/makefs/msdos/msdosfs_vfsops.c, 2 times
• usr.sbin/mfiutil/mfi_config.c, line 527
• usr.sbin/mptutil/mpt_config.c, line 863
• usr.sbin/mptutil/mpt_show.c, line 376
• usr.sbin/pciconf/cap.c, line 992