Defined in 10 files as a macro:

• Documentation/ABI/obsolete/sysfs-gpio, line 17 (as a macro)
• Documentation/ABI/testing/configfs-usb-gadget-uac2, line 17 (as a macro)
• Documentation/ABI/testing/sysfs-bus-i2c-devices-lm3533, line 17 (as a macro)
• Documentation/core-api/printk-basics.rst, line 17 (as a macro)
• drivers/iio/buffer/kfifo_buf.c, line 46 (as a macro)
• drivers/media/rc/keymaps/rc-apac-viewcomp.c, line 23 (as a macro)
• include/linux/ctype.h, line 26 (as a macro)
• include/linux/remoteproc/mtk_scp.h, line 34 (as a macro)
• include/net/ila.h, line 42 (as a macro)
• tools/include/linux/ctype.h, line 26 (as a macro)

Defined in 1 files as a function:

• tools/include/nolibc/ctype.h, line 82 (as a function)

Referenced in 54 files:

• arch/arm/plat-orion/gpio.c, line 2792
• arch/arm64/boot/dts/renesas/r8a779g0-white-hawk-cpu.dtsi, line 648
• arch/mips/generic/init.c, line 351
• arch/mips/include/asm/octeon/cvmx-led-defs.h, line 202
• arch/mips/include/asm/octeon/cvmx-lmcx-defs.h, line 353
• arch/parisc/include/asm/prefetch.h, line 202
• arch/powerpc/include/asm/delay.h, line 353
• arch/powerpc/kernel/rtas-proc.c, line 678
• arch/riscv/kernel/cpufeature.c, line 250
• arch/s390/kernel/ipl.c, line 881
• arch/x86/include/asm/vmx.h
  • line 153
  • line 656
• drivers/accessibility/speakup/main.c
  • line 501
  • line 733
• drivers/acpi/acpica/rsutils.c, line 210
• drivers/firmware/efi/runtime-wrappers.c, line 2781
• drivers/gpu/drm/amd/amdgpu/amdgpu_vcn.h, line 787
• drivers/gpu/drm/drm_of.c, line 497
• drivers/gpu/drm/mediatek/mtk_dp.c, line 492
• drivers/net/team/team.c, line 419
• drivers/net/wireless/marvell/mwifiex/cfg80211.c
  • line 4287
  • line 4287
• drivers/net/wireless/quantenna/qtnfmac/cfg80211.c
  • line 1200
  • line 1201
• drivers/net/wireless/realtek/rtlwifi/rtl8192de/led.c, line 497
• drivers/platform/mellanox/mlxbf-pmc.c, line 1090
• drivers/ptp/Makefile, line 2781
• drivers/s390/char/sclp_cpi_sys.c, line 193
• drivers/staging/media/atomisp/pci/css_receiver_2400_defs.h, line 266
• fs/fat/namei_vfat.c, line 307
• fs/nfsd/nfsctl.c, line 772
• include/crypto/acompress.h
  • line 173
  • line 946
• include/drm/drm_atomic.h
  • line 171
  • line 901
• include/dt-bindings/reset/actions,s900-reset.h, line 122
• include/scsi/libiscsi.h, line 657
• kernel/bpf/btf.c, line 757
• kernel/sched/isolation.c
  • line 198
  • line 222
• kernel/trace/trace.h
  • line 1994
  • line 1997
• kernel/trace/trace_events.c
  • line 2631
  • line 2713
• kernel/trace/trace_probe.c, line 816
• lib/dynamic_debug.c, line 439
• lib/vsprintf.c
  • line 1495
  • line 1554
• net/netfilter/nf_conntrack_sip.c
  • line 71
  • line 398
  • line 1488
• net/wireless/reg.c
  • line 408
  • line 408
• scripts/asn1_compiler.c, line 411
• scripts/kconfig/lxdialog/menubox.c, line 264
• scripts/kconfig/lxdialog/util.c, line 531
• sound/core/init.c, line 692
• sound/sh/aica.c, line 2781
• tools/include/nolibc/ctype.h, line 90
• tools/perf/builtin-trace.c
  • line 621
  • line 3759
  • line 3772
• tools/perf/pmu-events/arch/x86/skylakex/floating-point.json, line 657
• tools/perf/tests/bpf-script-test-prologue.c, line 2261
• tools/perf/util/config.c, line 281
• tools/perf/util/demangle-java.c, line 124
• tools/perf/util/probe-event.c
  • line 1315
  • line 1318
• tools/perf/util/probe-finder.h, line 21
• tools/testing/selftests/bpf/DENYLIST.s390x, line 492