Defined in 5 files as a prototype:

• arch/alpha/include/asm/checksum.h, line 20 (as a prototype)
• arch/hexagon/include/asm/checksum.h, line 17 (as a prototype)
• arch/x86/pci/ce4100.c, line 25 (as a prototype)
• drivers/net/ethernet/chelsio/cxgb4/t4_values.h, line 21 (as a prototype)
• include/asm-generic/checksum.h, line 46 (as a prototype)

Defined in 6 files as a macro:

• arch/arc/include/asm/checksum.h, line 94 (as a macro)
• arch/csky/include/asm/checksum.h, line 45 (as a macro)
• arch/hexagon/include/asm/checksum.h, line 16 (as a macro)
• arch/microblaze/include/asm/checksum.h, line 14 (as a macro)
• arch/mips/include/asm/checksum.h, line 171 (as a macro)
• arch/nios2/include/asm/checksum.h, line 39 (as a macro)

Defined in 58 files as a function:

• Documentation/ABI/testing/sysfs-platform-asus-wmi, line 44 (as a function)
• Documentation/admin-guide/abi-stable.rst, line 126 (as a function)
• Documentation/devicetree/bindings/clock/google,gs101-clock.yaml, line 136 (as a function)
• Documentation/devicetree/bindings/iio/potentiometer/renesas,x9250.yaml, line 125 (as a function)
• Documentation/devicetree/bindings/leds/backlight/kinetic,ktz8866.yaml, line 188 (as a function)
• Documentation/devicetree/bindings/phy/ingenic,phy-usb.yaml, line 121 (as a function)
• Documentation/translations/sp_SP/process/email-clients.rst, line 136 (as a function)
• arch/alpha/lib/checksum.c, line 54 (as a function)
• arch/arc/include/asm/checksum.h, line 70 (as a function)
• arch/arm/include/asm/checksum.h, line 100 (as a function)
• arch/arm/mach-omap2/pm34xx.c, line 80 (as a function)
• arch/csky/include/asm/checksum.h, line 25 (as a function)
• arch/hexagon/lib/checksum.c, line 58 (as a function)
• arch/m68k/include/asm/checksum.h, line 82 (as a function)
• arch/microblaze/include/asm/checksum.h, line 16 (as a function)
• arch/mips/include/asm/checksum.h, line 129 (as a function)
• arch/nios2/include/asm/checksum.h, line 40 (as a function)
• arch/parisc/include/asm/checksum.h, line 74 (as a function)
• arch/powerpc/include/asm/checksum.h, line 57 (as a function)
• arch/powerpc/platforms/powernv/opal-prd.c, line 71 (as a function)
• arch/s390/include/asm/checksum.h, line 81 (as a function)
• arch/s390/kernel/setup.c, line 188 (as a function)
• arch/sh/include/asm/checksum_32.h, line 115 (as a function)
• arch/sparc/include/asm/checksum_32.h, line 132 (as a function)
• arch/sparc/include/asm/checksum_64.h, line 66 (as a function)
• arch/x86/include/asm/checksum_32.h, line 109 (as a function)
• arch/x86/include/asm/checksum_64.h, line 87 (as a function)
• arch/x86/um/asm/checksum.h, line 55 (as a function)
• arch/xtensa/include/asm/checksum.h, line 123 (as a function)
• drivers/gpu/drm/i915/display/intel_fdi_regs.h, line 98 (as a function)
• drivers/gpu/drm/i915/i915_config.h, line 148 (as a function)
• drivers/gpu/drm/nouveau/nvkm/engine/nvdec/gm107.c, line 124 (as a function)
• drivers/hid/hid-kye.c, line 100 (as a function)
• drivers/iio/adc/ad7292.c, line 180 (as a function)
• drivers/infiniband/hw/bnxt_re/main.c, line 143 (as a function)
• drivers/md/dm-sysfs.c, line 55 (as a function)
• drivers/md/dm-verity-verify-sig.h, line 115 (as a function)
• drivers/md/persistent-data/dm-space-map-metadata.h, line 147 (as a function)
• drivers/net/ethernet/chelsio/cxgb4/sched.c, line 40 (as a function)
• drivers/net/ethernet/chelsio/cxgb4/t4fw_version.h, line 132 (as a function)
• drivers/net/ethernet/chelsio/cxgb4vf/t4vf_common.h, line 176 (as a function)
• drivers/net/ethernet/chelsio/cxgb4vf/t4vf_defs.h, line 135 (as a function)
• drivers/net/ethernet/intel/igc/igc_mac.h, line 116 (as a function)
• drivers/net/ethernet/qualcomm/emac/emac-mac.h, line 95 (as a function)
• drivers/net/wireless/marvell/mwifiex/11n_aggr.c, line 128 (as a function)
• drivers/net/wireless/zydas/zd1211rw/zd_rf_al7230b.c, line 132 (as a function)
• drivers/phy/qualcomm/phy-qcom-qmp-pcs-usb-v6.h, line 84 (as a function)
• drivers/pnp/pnpacpi/pnpacpi.h, line 131 (as a function)
• drivers/scsi/sym53c8xx_2/sym_fw.c, line 133 (as a function)
• include/media/i2c/wm8775.h, line 116 (as a function)
• include/uapi/linux/bsg.h, line 139 (as a function)
• kernel/bpf/preload/bpf_preload_kern.c, line 180 (as a function)
• lib/checksum.c, line 158 (as a function)
• sound/pci/hda/patch_cs8409.h, line 150 (as a function)
• sound/soc/codecs/twl6040.h, line 138 (as a function)
• sound/soc/intel/boards/sof_pcm512x.c, line 124 (as a function)
• tools/testing/selftests/drivers/net/mlxsw/rif_mac_profiles_occ.sh, line 144 (as a function)
• tools/testing/selftests/tc-testing/tc-tests/qdiscs/fq.json, line 54 (as a function)

Referenced in 108 files:

• Documentation/admin-guide/abi-stable.rst, line 158
• Documentation/admin-guide/hw-vuln/spectre.rst, line 893
• Documentation/devicetree/bindings/dma/allwinner,sun4i-a10-dma.yaml, 2 times
• Documentation/devicetree/bindings/iio/potentiometer/renesas,x9250.yaml, line 158
• Documentation/devicetree/bindings/leds/backlight/kinetic,ktz8866.yaml, line 215
• Documentation/devicetree/bindings/phy/ingenic,phy-usb.yaml, line 153
• Documentation/devicetree/bindings/sound/ti,tlv320aic3x.yaml, line 890
• Documentation/translations/sp_SP/process/email-clients.rst, line 163
• arch/alpha/lib/checksum.c, line 70
• arch/arm/include/asm/checksum.h, line 140
• arch/hexagon/lib/checksum.c, line 74
• arch/loongarch/kernel/irq.c, 2 times
• arch/m68k/include/asm/checksum.h, line 105
• arch/nios2/include/asm/checksum.h, line 67
• arch/parisc/include/asm/checksum.h, line 96
• arch/powerpc/include/asm/checksum.h, line 91
• arch/s390/include/asm/checksum.h, line 101
• arch/sh/include/asm/checksum_32.h, line 145
• arch/sparc/include/asm/checksum_32.h, line 155
• arch/sparc/include/asm/checksum_64.h, line 89
• arch/x86/include/asm/checksum_32.h, line 131
• arch/x86/include/asm/checksum_64.h, line 116
• arch/x86/um/asm/checksum.h, line 75
• arch/xtensa/include/asm/checksum.h, line 160
• drivers/gpu/drm/i915/i915_config.h, line 186
• drivers/gpu/drm/mxsfb/lcdif_regs.h, 2 times
• drivers/iio/adc/ad7292.c, line 207
• drivers/infiniband/hw/Makefile, 2 times
• drivers/macintosh/adb.c, 2 times
• drivers/md/dm-sysfs.c, line 99
• drivers/md/dm-verity-verify-sig.h, line 142
• drivers/md/persistent-data/dm-space-map-metadata.h, line 184
• drivers/media/platform/mediatek/vpu/mtk_vpu.h, line 893
• drivers/media/platform/sunxi/sun6i-csi/sun6i_csi_reg.h, 2 times
• drivers/net/ethernet/chelsio/cxgb4/t4fw_version.h, line 159
• drivers/net/ethernet/chelsio/cxgb4vf/t4vf_common.h, line 203
• drivers/net/ethernet/chelsio/cxgb4vf/t4vf_defs.h, line 162
• drivers/net/ethernet/chelsio/inline_crypto/ch_ipsec/Makefile, line 897
• drivers/net/ethernet/chelsio/libcxgb/libcxgb_cm.c, line 895
• drivers/net/ethernet/cisco/enic/vnic_cq.c, line 912
• drivers/net/ethernet/intel/igc/igc_mac.h, line 136
• drivers/net/ethernet/marvell/octeontx2/nic/otx2_ptp.h, line 912
• drivers/net/ethernet/mellanox/mlx4/en_rx.c, line 590
• drivers/net/ethernet/qualcomm/emac/emac-mac.h, line 113
• drivers/net/ethernet/sgi/ioc3-eth.c, line 1013
• drivers/net/ethernet/ti/cpsw_ale.h, 2 times
• drivers/net/wireless/broadcom/b43/sysfs.h, line 912
• drivers/net/wireless/intel/iwlegacy/Makefile, line 913
• drivers/net/wireless/marvell/mwifiex/11n_aggr.c, line 171
• drivers/net/wireless/ti/wl12xx/debugfs.c, line 973
• drivers/net/wireless/ti/wl12xx/event.c, line 1248
• drivers/net/wireless/zydas/zd1211rw/zd_rf_al7230b.c, line 159
• drivers/net/wwan/iosm/iosm_ipc_devlink.c, line 1159
• drivers/pci/pcie/rcec.c, line 974
• drivers/pmdomain/renesas/r8a774a1-sysc.c, line 999
• drivers/pnp/pnpacpi/pnpacpi.h, line 174
• drivers/s390/char/tape_proc.c, line 1164
• drivers/scsi/sym53c8xx_2/sym_fw.c, line 160
• drivers/spi/spi-tle62x0.c, line 999
• drivers/staging/vt6656/wcmd.h, line 999
• drivers/staging/wlan-ng/Kconfig, line 1175
• drivers/uio/uio_pci_generic.c, line 1002
• drivers/usb/gadget/function/uvc_queue.h, line 1002
• drivers/usb/serial/cypress_m8.h, line 1175
• drivers/watchdog/iTCO_wdt.c, line 863
• fs/configfs/dir.c, 2 times
• fs/cramfs/Makefile, line 1113
• fs/hfsplus/btree.c, 2 times
• fs/nilfs2/the_nilfs.c, 2 times
• fs/ocfs2/buffer_head_io.h, 2 times
• include/asm-generic/checksum.h, 2 times
• include/linux/bpf_trace.h, line 1114
• include/linux/iio/sysfs.h, line 899
• include/linux/mfd/mt6331/registers.h, 2 times
• include/linux/sunrpc/addr.h, 2 times
• include/media/drv-intf/saa7146.h, line 997
• include/media/i2c/wm8775.h, line 136
• include/net/gro.h, line 190
• include/net/ip.h, line 582
• include/trace/events/mmc.h, 2 times
• include/uapi/linux/bsg.h, line 171
• include/uapi/xen/gntdev.h, line 1118
• include/xen/acpi.h, line 1118
• kernel/bpf/preload/bpf_preload_kern.c, line 207
• lib/checksum.c, 2 times
• net/hsr/hsr_framereg.h, 2 times
• net/ipv4/tcp_ipv4.c, 2 times
• net/ipv6/netfilter/ip6table_security.c, line 1002
• net/netfilter/utils.c, 2 times
• net/sched/act_meta_mark.c, line 1151
• net/strparser/Kconfig, line 1030
• samples/vfio-mdev/Makefile, line 1121
• scripts/checkversion.pl, line 1117
• sound/hda/Kconfig, line 1024
• sound/hda/array.c, line 1052
• sound/pci/ctxfi/ctamixer.h, line 1024
• sound/pci/ctxfi/ctatc.c, line 1052
• sound/pci/hda/patch_cs8409.h, line 182
• sound/soc/codecs/twl6040.h, line 165
• tools/arch/xtensa/include/asm/barrier.h, line 1023
• tools/arch/xtensa/include/uapi/asm/mman.h, line 1052
• tools/lib/perf/include/perf/bpf_perf.h, 2 times
• tools/perf/util/color.c, 2 times
• tools/power/x86/x86_energy_perf_policy/x86_energy_perf_policy.c, 2 times
• tools/testing/selftests/bpf/progs/test_stacktrace_map.c, 2 times
• tools/testing/selftests/bpf/progs/test_tracepoint.c, line 884
• tools/testing/selftests/drivers/net/mlxsw/rif_mac_profiles_occ.sh, line 176
• tools/testing/selftests/drivers/net/netdevsim/fib_notifications.sh, 2 times