Documented in 2 files:

• arch/x86/boot/string.c, line 189
• lib/string.c, line 401

Defined in 10 files as a prototype:

• arch/alpha/include/asm/string.h, line 57 (as a prototype)
• arch/arc/include/asm/string.h, line 29 (as a prototype)
• arch/arm/include/asm/string.h, line 14 (as a prototype)
• arch/arm64/include/asm/string.h, line 13 (as a prototype)
• arch/powerpc/boot/string.h, line 9 (as a prototype)
• arch/unicore32/include/asm/string.h, line 21 (as a prototype)
• arch/x86/boot/boot.h, line 332 (as a prototype)
• arch/x86/boot/string.h, line 26 (as a prototype)
• arch/x86/include/asm/string_32.h, line 28 (as a prototype)
• include/linux/string.h, line 60 (as a prototype)

Defined in 3 files as a label:

• arch/alpha/lib/ev67-strchr.S, line 28 (as a label)
• arch/alpha/lib/strchr.S, line 18 (as a label)
• arch/powerpc/boot/string.S, line 49 (as a label)

Defined in 7 files as a function:

• arch/arm/boot/compressed/string.c, line 116 (as a function)
• arch/arm/lib/strchr.S, line 14 (as a function)
• arch/parisc/boot/compressed/misc.c, line 110 (as a function)
• arch/x86/boot/string.c, line 194 (as a function)
• arch/x86/lib/string_32.c, line 143 (as a function)
• lib/string.c, line 409 (as a function)
• tools/include/nolibc/nolibc.h, line 2328 (as a function)

Referenced in 412 files:

• arch/alpha/kernel/smp.c, line 274
• arch/alpha/lib/ev67-strchr.S, 4 times
• arch/alpha/lib/strchr.S, 4 times
• arch/arc/kernel/arcksyms.c, line 51
• arch/arc/lib/strchr-700.S, 2 times
• arch/arm/kernel/armksyms.c, line 84
• arch/arm/kernel/vdso.c, line 145
• arch/arm/lib/strchr.S, line 24
• arch/arm64/lib/strchr.S, 3 times
• arch/ia64/kernel/mca.c, 2 times
• arch/mips/alchemy/common/prom.c, line 65
• arch/mips/cavium-octeon/setup.c, 2 times
• arch/mips/fw/arc/cmdline.c, line 51
• arch/mips/fw/lib/cmdline.c, line 62
• arch/mips/txx9/generic/setup.c, line 137
• arch/parisc/boot/compressed/misc.c, line 124
• arch/powerpc/boot/string.S, line 48
• arch/powerpc/kernel/vdso.c, 2 times
• arch/powerpc/platforms/pseries/lparcfg.c, line 614
• arch/powerpc/platforms/pseries/reconfig.c, 5 times
• arch/powerpc/xmon/nonstdio.c, line 51
• arch/s390/kernel/perf_cpum_sf.c, line 2102
• arch/s390/kernel/sysinfo.c, line 390
• arch/sh/kernel/machvec.c, 2 times
• arch/sh/kernel/nmi_debug.c, line 55
• arch/sparc/kernel/process_32.c, line 100
• arch/sparc/kernel/reboot.c, line 45
• arch/sparc/vdso/vdso2c.c, line 205
• arch/um/drivers/chan_kern.c, line 504
• arch/um/drivers/net_user.c, line 259
• arch/um/drivers/ubd_kern.c, 2 times
• arch/um/drivers/virtio_uml.c, line 1039
• arch/um/drivers/xterm.c, 2 times
• arch/um/os-Linux/execvp.c, 3 times
• arch/um/os-Linux/start_up.c, line 352
• arch/unicore32/kernel/ksyms.c, line 33
• arch/x86/boot/compressed/kaslr.c, line 185
• arch/x86/boot/tools/build.c, line 326
• arch/x86/entry/vdso/vdso2c.c, line 226
• arch/x86/kernel/acpi/sleep.c, line 142
• arch/x86/kernel/apm_32.c, line 1895
• arch/x86/kernel/cpu/mce/dev-mcelog.c, line 107
• arch/x86/kernel/cpu/resctrl/rdtgroup.c, line 2853
• arch/x86/kernel/e820.c, line 971
• arch/x86/kernel/hpet.c, line 102
• arch/x86/lib/string_32.c, line 161
• arch/x86/mm/numa_emulation.c, 3 times
• arch/x86/platform/geode/alix.c, 2 times
• arch/x86/platform/uv/uv_nmi.c, line 193
• arch/x86/tools/insn_decoder_test.c, 2 times
• arch/x86/xen/platform-pci-unplug.c, line 183
• arch/xtensa/mm/init.c, line 243
• arch/xtensa/platforms/iss/network.c, 2 times
• block/blk-iocost.c, line 2077
• block/cmdline-parser.c, 4 times
• crypto/essiv.c, line 413
• drivers/acpi/acpi_tad.c, line 145
• drivers/acpi/bus.c, line 678
• drivers/amba/bus.c, line 111
• drivers/ata/libata-core.c, 2 times
• drivers/auxdisplay/charlcd.c, line 495
• drivers/auxdisplay/panel.c, line 1444
• drivers/base/core.c, line 2473
• drivers/base/devtmpfs.c, 2 times
• drivers/base/platform.c, line 995
• drivers/block/aoe/aoeblk.c, line 203
• drivers/block/drbd/drbd_nl.c, line 4267
• drivers/block/null_blk_main.c, line 368
• drivers/block/xen-blkback/xenbus.c, line 728
• drivers/char/apm-emulation.c, line 694
• drivers/char/ipmi/ipmi_si_hardcode.c, line 129
• drivers/char/ipmi/ipmi_si_hotmod.c, 5 times
• drivers/clk/sunxi/clk-sunxi.c, line 979
• drivers/dma-buf/selftest.c, line 65
• drivers/firmware/broadcom/bcm47xx_nvram.c, line 183
• drivers/gpu/drm/amd/amdgpu/amdgpu_gfx.c, line 171
• drivers/gpu/drm/amd/amdgpu/amdgpu_virt.c, line 389
• drivers/gpu/drm/drm_edid_load.c, line 289
• drivers/gpu/drm/drm_modes.c, 6 times
• drivers/gpu/drm/i915/i915_debugfs.c, 2 times
• drivers/gpu/drm/i915/selftests/i915_selftest.c, line 220
• drivers/gpu/drm/nouveau/nouveau_debugfs.c, line 159
• drivers/gpu/drm/rcar-du/rcar_du_of.c, line 230
• drivers/hv/vmbus_drv.c, line 557
• drivers/hwmon/ibmpowernv.c, 2 times
• drivers/hwmon/mc13783-adc.c, line 240
• drivers/i2c/busses/i2c-taos-evm.c, line 191
• drivers/i2c/i2c-core-base.c, line 1053
• drivers/i2c/i2c-core-of.c, line 198
• drivers/iio/imu/inv_mpu6050/inv_mpu_acpi.c, line 167
• drivers/infiniband/core/device.c, line 1146
• drivers/infiniband/core/nldev.c, line 1471
• drivers/infiniband/hw/hfi1/fault.c, 2 times
• drivers/infiniband/hw/hfi1/verbs.c, line 1683
• drivers/infiniband/hw/qib/qib_iba6120.c, 2 times
• drivers/infiniband/hw/qib/qib_iba7220.c, 2 times
• drivers/infiniband/hw/qib/qib_iba7322.c, 2 times
• drivers/infiniband/ulp/srp/ib_srp.c, line 3470
• drivers/input/touchscreen/edt-ft5x06.c, 2 times
• drivers/leds/uleds.c, line 105
• drivers/md/dm-crypt.c, 4 times
• drivers/md/dm-init.c, line 89
• drivers/md/dm-integrity.c, 3 times
• drivers/md/dm-ioctl.c, line 669
• drivers/md/dm-log-userspace-base.c, line 814
• drivers/md/dm-stats.c, line 939
• drivers/media/cec/cec-pin-error-inj.c, line 145
• drivers/media/pci/cx18/cx18-mailbox.c, line 329
• drivers/misc/eeprom/idt_89hpesx.c, line 1104
• drivers/misc/habanalabs/debugfs.c, line 480
• drivers/misc/kgdbts.c, 4 times
• drivers/mtd/parsers/cmdlinepart.c, 2 times
• drivers/net/bonding/bond_options.c, 4 times
• drivers/net/ethernet/8390/etherh.c, line 514
• drivers/net/ethernet/hisilicon/hns3/hns3_debugfs.c, line 345
• drivers/net/ethernet/intel/i40e/i40e_debugfs.c, 2 times
• drivers/net/ethernet/myricom/myri10ge/myri10ge.c, line 1634
• drivers/net/ethernet/seeq/ether3.c, line 201
• drivers/net/ethernet/sfc/ethtool.c, line 239
• drivers/net/ethernet/sfc/falcon/ethtool.c, line 221
• drivers/net/hamradio/baycom_par.c, line 405
• drivers/net/hamradio/baycom_ser_fdx.c, 2 times
• drivers/net/hamradio/baycom_ser_hdx.c, 3 times
• drivers/net/wireless/broadcom/brcm80211/brcmfmac/firmware.c, 2 times
• drivers/net/wireless/intel/ipw2x00/ipw2200.c, line 1851
• drivers/net/wireless/marvell/libertas/debugfs.c, 2 times
• drivers/of/base.c, 3 times
• drivers/of/device.c, line 228
• drivers/of/resolver.c, 2 times
• drivers/parisc/eisa.c, line 456
• drivers/parisc/pdc_stable.c, line 404
• drivers/parport/parport_pc.c, 2 times
• drivers/parport/probe.c, 2 times
• drivers/pci/hotplug/rpadlpar_sysfs.c, 2 times
• drivers/pci/pci-sysfs.c, line 566
• drivers/pci/pci.c, line 6258
• drivers/pinctrl/tegra/pinctrl-tegra-xusb.c, line 412
• drivers/pinctrl/tegra/pinctrl-tegra.c, line 531
• drivers/platform/x86/thinkpad_acpi.c, line 924
• drivers/pnp/pnpbios/core.c, line 412
• drivers/power/supply/power_supply_hwmon.c, line 339
• drivers/power/supply/power_supply_sysfs.c, line 419
• drivers/s390/block/dasd_devmap.c, line 287
• drivers/s390/char/sclp_cpi_sys.c, line 194
• drivers/s390/char/tape_class.c, 4 times
• drivers/s390/cio/ccwgroup.c, 2 times
• drivers/s390/cio/css.c, line 347
• drivers/s390/net/netiucv.c, line 1434
• drivers/s390/net/qeth_l3_sys.c, line 478
• drivers/scsi/aic7xxx/aic79xx_osm.c, 3 times
• drivers/scsi/aic7xxx/aic7xxx_osm.c, 3 times
• drivers/scsi/gdth.c, 4 times
• drivers/scsi/ipr.c, line 4090
• drivers/scsi/ips.c, line 514
• drivers/scsi/lpfc/lpfc_attr.c, line 1804
• drivers/scsi/ncr53c8xx.c, 3 times
• drivers/scsi/qla1280.c, 3 times
• drivers/scsi/qla2xxx/tcm_qla2xxx.c, line 1728
• drivers/scsi/sim710.c, 2 times
• drivers/scsi/st.c, line 4141
• drivers/scsi/wd33c93.c, line 1783
• drivers/soc/renesas/renesas-soc.c, line 359
• drivers/staging/isdn/avm/b1.c, 2 times
• drivers/staging/isdn/avm/b1dma.c, 2 times
• drivers/staging/isdn/avm/b1isa.c, 2 times
• drivers/staging/isdn/avm/b1pci.c, 2 times
• drivers/staging/isdn/avm/b1pcmcia.c, 2 times
• drivers/staging/isdn/avm/c4.c, 2 times
• drivers/staging/isdn/avm/t1isa.c, 2 times
• drivers/staging/isdn/avm/t1pci.c, 2 times
• drivers/staging/isdn/gigaset/ev-layer.c, 2 times
• drivers/staging/speakup/i18n.c, 3 times
• drivers/staging/speakup/kobjects.c, 5 times
• drivers/staging/speakup/speakup_decext.c, line 191
• drivers/staging/speakup/speakup_decpc.c, line 409
• drivers/staging/speakup/speakup_dectlk.c, line 259
• drivers/target/iscsi/iscsi_target.c, 2 times
• drivers/target/iscsi/iscsi_target_parameters.c, 5 times
• drivers/target/target_core_configfs.c, 3 times
• drivers/tty/hvc/hvc_iucv.c, 2 times
• drivers/tty/hvc/hvc_xen.c, line 635
• drivers/tty/serial/serial_core.c, line 2008
• drivers/tty/serial/suncore.c, 4 times
• drivers/usb/early/ehci-dbgp.c, line 1055
• drivers/usb/gadget/configfs.c, 2 times
• drivers/usb/gadget/function/f_mass_storage.c, line 3151
• drivers/usb/host/uhci-debug.c, line 33
• drivers/usb/usbip/vhci_hcd.c, line 1117
• drivers/usb/usbip/vhci_sysfs.c, line 136
• drivers/video/console/sticore.c, 3 times
• drivers/video/fbdev/core/fb_cmdline.c, line 89
• drivers/video/fbdev/omap2/omapfb/omapfb-main.c, line 2169
• drivers/xen/xenbus/xenbus_probe.c, line 573
• drivers/xen/xenbus/xenbus_probe_backend.c, line 65
• drivers/xen/xenbus/xenbus_probe_frontend.c, 3 times
• drivers/xen/xenbus/xenbus_xs.c, line 701
• drivers/zorro/gen-devlist.c, 2 times
• fs/affs/symlink.c, line 34
• fs/afs/cell.c, line 338
• fs/afs/proc.c, 2 times
• fs/afs/super.c, line 262
• fs/autofs/dev-ioctl.c, line 31
• fs/binfmt_misc.c, 8 times
• fs/btrfs/ioctl.c, 6 times
• fs/cachefiles/daemon.c, 2 times
• fs/ceph/super.c, line 508
• fs/cifs/cache.c, line 73
• fs/cifs/cifs_dfs_ref.c, line 196
• fs/cifs/cifsglob.h, line 1463
• fs/cifs/cifsroot.c, line 50
• fs/cifs/connect.c, 6 times
• fs/cifs/dfs_cache.c, 7 times
• fs/crypto/fname.c, line 165
• fs/ext4/super.c, 2 times
• fs/f2fs/super.c, line 319
• fs/fat/namei_msdos.c, 4 times
• fs/filesystems.c, 2 times
• fs/fs_context.c, 3 times
• fs/gfs2/lock_dlm.c, line 1226
• fs/gfs2/ops_fstype.c, line 380
• fs/hostfs/hostfs_kern.c, 2 times
• fs/namespace.c, line 2797
• fs/nfs/nfs4namespace.c, 2 times
• fs/nfs/nfs4proc.c, line 6027
• fs/nfs/nfs4super.c, line 142
• fs/nfs/super.c, 3 times
• fs/nfsd/fault_inject.c, line 61
• fs/ntfs/super.c, line 177
• fs/orangefs/orangefs-debugfs.c, line 546
• fs/overlayfs/super.c, line 1446
• fs/overlayfs/util.c, line 928
• fs/proc/generic.c, line 169
• fs/proc/proc_sysctl.c, line 1350
• fs/reiserfs/bitmap.c, line 582
• fs/reiserfs/prints.c, line 178
• fs/reiserfs/procfs.c, 2 times
• fs/reiserfs/super.c, 2 times
• fs/seq_file.c, line 440
• include/acpi/platform/acgccex.h, 2 times
• include/linux/netdevice.h, line 4679
• include/linux/wimax/debug.h, line 474
• init/do_mounts.c, 2 times
• init/do_mounts_md.c, 2 times
• init/main.c, 2 times
• kernel/bpf/inode.c, line 345
• kernel/cgroup/cgroup.c, line 5362
• kernel/crash_core.c, 3 times
• kernel/debug/kdb/kdb_io.c, 2 times
• kernel/debug/kdb/kdb_main.c, 3 times
• kernel/gcov/fs.c, line 577
• kernel/kprobes.c, line 1434
• kernel/module.c, line 4034
• kernel/params.c, line 823
• kernel/printk/braille.c, line 26
• kernel/printk/printk.c, line 2181
• kernel/reboot.c, line 588
• kernel/sysctl_binary.c, line 1156
• kernel/trace/trace.c, 2 times
• kernel/trace/trace_dynevent.c, 2 times
• kernel/trace/trace_events.c, line 1246
• kernel/trace/trace_events_filter.c, 3 times
• kernel/trace/trace_events_hist.c, 7 times
• kernel/trace/trace_kprobe.c, 5 times
• kernel/trace/trace_probe.c, 7 times
• kernel/trace/trace_uprobe.c, 3 times
• kernel/user_namespace.c, line 907
• lib/dynamic_debug.c, 2 times
• lib/kasprintf.c, line 45
• lib/kobject.c, line 299
• lib/parser.c, line 34
• lib/string.c, line 416
• lib/test_kasan.c, line 644
• lib/test_string.c, 4 times
• mm/kasan/report.c, line 212
• mm/mempolicy.c, 2 times
• mm/shmem.c, 2 times
• mm/slab.c, line 4128
• mm/slab_common.c, line 94
• net/batman-adv/gateway_common.c, line 109
• net/batman-adv/sysfs.c, line 698
• net/bridge/br_sysfs_if.c, line 207
• net/core/dev.c, 4 times
• net/core/dev_ioctl.c, line 390
• net/core/netpoll.c, 6 times
• net/ipv4/devinet.c, 2 times
• net/ipv4/fib_frontend.c, line 539
• net/ipv4/ipconfig.c, 3 times
• net/ipv4/sysctl_net_ipv4.c, line 350
• net/netfilter/nf_tables_api.c, 2 times
• net/netfilter/x_tables.c, line 451
• net/sunrpc/auth_gss/auth_gss.c, line 479
• net/sunrpc/auth_gss/gss_rpc_upcall.c, 2 times
• net/tipc/bearer.c, 2 times
• net/tipc/node.c, line 1082
• net/wireless/wext-core.c, line 1102
• samples/mic/mpssd/mpssd.c, 2 times
• scripts/asn1_compiler.c, line 632
• scripts/conmakehash.c, line 116
• scripts/dtc/checks.c, line 328
• scripts/dtc/dtc.c, line 38
• scripts/dtc/fdtput.c, line 162
• scripts/dtc/libfdt/fdt_overlay.c, line 742
• scripts/dtc/livetree.c, 3 times
• scripts/dtc/treesource.c, line 46
• scripts/dtc/util.c, 2 times
• scripts/insert-sys-cert.c, 2 times
• scripts/kallsyms.c, line 85
• scripts/kconfig/confdata.c, 4 times
• scripts/kconfig/lxdialog/menubox.c, line 275
• scripts/kconfig/lxdialog/textbox.c, line 253
• scripts/kconfig/lxdialog/util.c, 3 times
• scripts/mod/modpost.c, 6 times
• scripts/mod/sumversion.c, line 412
• scripts/unifdef.c, line 1011
• security/apparmor/apparmorfs.c, 2 times
• security/apparmor/lib.c, line 48
• security/keys/user_defined.c, line 199
• security/safesetid/securityfs.c, 2 times
• security/selinux/hooks.c, line 1085
• security/selinux/ss/mls.c, 4 times
• security/selinux/ss/services.c, line 3312
• security/smack/smack_lsm.c, line 727
• security/tomoyo/common.c, 5 times
• security/tomoyo/condition.c, 4 times
• security/tomoyo/environ.c, line 100
• security/tomoyo/network.c, line 58
• security/tomoyo/util.c, 7 times
• sound/pci/hda/hda_generic.c, 2 times
• sound/pci/hda/hda_sysfs.c, 2 times
• sound/soc/intel/atom/sst-atom-controls.c, line 1419
• tools/bpf/bpf_dbg.c, line 1020
• tools/bpf/bpftool/common.c, line 317
• tools/bpf/bpftool/feature.c, line 297
• tools/bpf/bpftool/main.c, 3 times
• tools/hv/hv_fcopy_daemon.c, line 43
• tools/hv/hv_kvp_daemon.c, 10 times
• tools/lib/bpf/libbpf.c, 2 times
• tools/lib/subcmd/help.c, line 210
• tools/lib/subcmd/parse-options.c, line 363
• tools/lib/subcmd/run-command.c, line 117
• tools/lib/traceevent/event-parse.c, 3 times
• tools/lib/traceevent/parse-filter.c, 2 times
• tools/perf/arch/arm64/annotate/instructions.c, 3 times
• tools/perf/arch/powerpc/util/header.c, line 30
• tools/perf/arch/s390/annotate/instructions.c, 8 times
• tools/perf/arch/s390/util/header.c, 2 times
• tools/perf/arch/s390/util/machine.c, 2 times
• tools/perf/arch/x86/util/header.c, 2 times
• tools/perf/arch/x86/util/perf_regs.c, 2 times
• tools/perf/builtin-config.c, 2 times
• tools/perf/builtin-diff.c, 4 times
• tools/perf/builtin-kvm.c, line 1312
• tools/perf/builtin-list.c, line 88
• tools/perf/builtin-mem.c, line 357
• tools/perf/builtin-probe.c, 2 times
• tools/perf/builtin-record.c, line 1955
• tools/perf/builtin-script.c, 7 times
• tools/perf/builtin-top.c, 2 times
• tools/perf/builtin-trace.c, line 3927
• tools/perf/tests/code-reading.c, line 112
• tools/perf/tests/parse-events.c, line 1896
• tools/perf/tests/time-utils-test.c, line 84
• tools/perf/ui/browser.c, line 593
• tools/perf/ui/browsers/header.c, 2 times
• tools/perf/ui/gtk/helpline.c, line 39
• tools/perf/ui/gtk/util.c, line 94
• tools/perf/ui/tui/util.c, 4 times
• tools/perf/util/annotate.c, 16 times
• tools/perf/util/bpf-loader.c, 6 times
• tools/perf/util/cgroup.c, line 218
• tools/perf/util/cputopo.c, 6 times
• tools/perf/util/debug.c, line 192
• tools/perf/util/evsel.c, 2 times
• tools/perf/util/header.c, 3 times
• tools/perf/util/machine.c, 2 times
• tools/perf/util/parse-branch-options.c, line 61
• tools/perf/util/parse-events.c, 6 times
• tools/perf/util/parse-events.h, 2 times
• tools/perf/util/parse-regs-options.c, line 43
• tools/perf/util/probe-event.c, 18 times
• tools/perf/util/probe-file.c, 4 times
• tools/perf/util/probe-finder.c, 2 times
• tools/perf/util/scripting-engines/trace-event-python.c, line 1349
• tools/perf/util/session.c, line 2242
• tools/perf/util/sort.c, 7 times
• tools/perf/util/srcline.c, 2 times
• tools/perf/util/stat-display.c, line 526
• tools/perf/util/stat-shadow.c, line 771
• tools/perf/util/string.c, 2 times
• tools/perf/util/strlist.c, line 147
• tools/perf/util/symbol-elf.c, 2 times
• tools/perf/util/symbol.c, 4 times
• tools/perf/util/synthetic-events.c, line 108
• tools/perf/util/time-utils.c, 10 times
• tools/perf/util/trace-event-info.c, line 420
• tools/perf/util/units.c, line 15
• tools/perf/util/util.c, line 87
• tools/power/acpi/common/getopt.c, line 111
• tools/power/cpupower/utils/helpers/bitmask.c, 2 times
• tools/power/x86/turbostat/turbostat.c, 6 times
• tools/testing/selftests/bpf/test_progs.c, 2 times
• tools/testing/selftests/bpf/test_verifier.c, line 871
• tools/testing/selftests/bpf/test_verifier_log.c, line 110
• tools/testing/selftests/gpio/gpio-mockup-chardev.c, line 96
• tools/testing/selftests/mqueue/mq_perf_tests.c, line 572
• tools/testing/selftests/net/nettest.c, line 1466
• tools/testing/selftests/powerpc/benchmarks/null_syscall.c, 2 times
• tools/testing/selftests/vm/mlock2-tests.c, 2 times
• tools/usb/usbip/libsrc/names.c, 2 times
• tools/usb/usbip/libsrc/vhci_driver.c, 3 times
• tools/vm/page-types.c, 4 times
• usr/gen_init_cpio.c, line 389