Defined in 4 files as a macro:

• arch/arc/include/asm/checksum.h, line 92 (as a macro)
• arch/arm64/include/asm/checksum.h, line 21 (as a macro)
• arch/csky/include/asm/checksum.h, line 23 (as a macro)
• arch/mips/include/asm/checksum.h, line 88 (as a macro)

Defined in 22 files as a function:

• arch/alpha/include/asm/checksum.h, line 62 (as a function)
• arch/arc/include/asm/checksum.h, line 25 (as a function)
• arch/arm/include/asm/checksum.h, line 57 (as a function)
• arch/arm64/include/asm/checksum.h, line 15 (as a function)
• arch/csky/include/asm/checksum.h, line 9 (as a function)
• arch/ia64/include/asm/checksum.h, line 49 (as a function)
• arch/m68k/include/asm/checksum.h, line 67 (as a function)
• arch/mips/include/asm/checksum.h, line 77 (as a function)
• arch/nios2/include/asm/checksum.h, line 21 (as a function)
• arch/parisc/include/asm/checksum.h, line 63 (as a function)
• arch/powerpc/include/asm/checksum.h, line 39 (as a function)
• arch/s390/include/asm/checksum.h, line 45 (as a function)
• arch/sh/include/asm/checksum_32.h, line 62 (as a function)
• arch/sparc/include/asm/checksum_32.h, line 118 (as a function)
• arch/sparc/include/asm/checksum_64.h, line 51 (as a function)
• arch/x86/include/asm/checksum_32.h, line 99 (as a function)
• arch/x86/include/asm/checksum_64.h, line 23 (as a function)
• arch/x86/um/asm/checksum.h, line 31 (as a function)
• arch/xtensa/include/asm/checksum.h, line 67 (as a function)
• include/asm-generic/checksum.h, line 31 (as a function)
• samples/bpf/xdpsock_user.c, line 650 (as a function)
• tools/testing/selftests/bpf/xdpxceiver.c, line 150 (as a function)

Documented in 2 files:

• arch/x86/include/asm/checksum_64.h, line 15
• arch/x86/um/asm/checksum.h, line 23

Referenced in 65 files:

• arch/arc/include/asm/checksum.h, line 62
• arch/arm/include/asm/checksum.h
  • line 95
  • line 139
  • line 150
  • line 162
• arch/arm64/include/asm/checksum.h, line 40
• arch/arm64/lib/csum.c, line 155
• arch/m68k/include/asm/checksum.h
  • line 105
  • line 115
  • line 146
• arch/mips/include/asm/checksum.h
  • line 125
  • line 182
  • line 249
• arch/nios2/include/asm/checksum.h, line 67
• arch/parisc/include/asm/checksum.h
  • line 96
  • line 105
  • line 173
• arch/powerpc/include/asm/checksum.h
  • line 90
  • line 149
  • line 205
• arch/s390/include/asm/checksum.h
  • line 71
  • line 98
  • line 106
  • line 127
• arch/sh/include/asm/checksum_32.h
  • line 110
  • line 143
  • line 152
  • line 187
• arch/sparc/include/asm/checksum_32.h
  • line 155
  • line 189
  • line 195
• arch/sparc/include/asm/checksum_64.h
  • line 89
  • line 123
  • line 129
• arch/x86/include/asm/checksum_32.h
  • line 131
  • line 141
  • line 165
• arch/x86/include/asm/checksum_64.h, line 117
• arch/x86/lib/csum-partial_64.c, line 147
• arch/x86/lib/csum-wrappers_64.c, line 96
• arch/x86/um/asm/checksum.h, line 75
• arch/x86/um/asm/checksum_32.h
  • line 10
  • line 35
• arch/xtensa/include/asm/checksum.h
  • line 120
  • line 160
  • line 170
  • line 233
• drivers/net/ethernet/3com/typhoon.c, line 1421
• drivers/net/ethernet/broadcom/bnx2x/bnx2x_cmn.c
  • line 3330
  • line 3334
  • line 3671
• drivers/net/ethernet/intel/igb/igb_main.c, line 5909
• drivers/net/ethernet/intel/igbvf/netdev.c, line 2041
• drivers/net/ethernet/intel/igc/igc_main.c, line 1283
• drivers/net/ethernet/intel/ixgbe/ixgbe_main.c, line 7997
• drivers/net/ethernet/intel/ixgbevf/ixgbevf_main.c, line 3798
• drivers/net/ethernet/sgi/ioc3-eth.c, line 1013
• drivers/net/ethernet/sun/cassini.c, line 2116
• drivers/net/thunderbolt.c, line 1017
• drivers/net/usb/smsc95xx.c, line 1918
• drivers/staging/gdm724x/gdm_lte.c, line 209
• include/asm-generic/checksum.h
  • line 27
  • line 55
• include/linux/netdevice.h, line 3075
• include/linux/skbuff.h
  • line 4073
  • line 4519
• include/net/checksum.h
  • line 121
  • line 128
  • line 169
  • line 171
  • line 178
• include/net/gre.h, line 139
• net/core/datagram.c, line 768
• net/core/dev.c
  • line 3319
  • line 6359
• net/core/skbuff.c
  • line 2913
  • line 2942
  • line 3119
• net/core/utils.c
  • line 435
  • line 467
  • line 470
  • line 479
  • line 483
• net/ipv4/gre_offload.c, line 102
• net/ipv4/icmp.c
  • line 391
  • line 1274
• net/ipv4/ip_output.c, line 1725
• net/ipv4/ipmr.c, line 2218
• net/ipv4/netfilter/nf_nat_snmp_basic_main.c, line 91
• net/ipv4/netfilter/nf_reject_ipv4.c, line 128
• net/ipv4/ping.c, line 633
• net/ipv4/tcp_offload.c
  • line 121
  • line 170
• net/ipv4/udp_offload.c, line 134
• net/ipv6/ila/ila_common.c
  • line 53
  • line 71
• net/ipv6/ip6_checksum.c, line 60
• net/ipv6/ip6mr.c, line 543
• net/ipv6/netfilter/ip6t_NPT.c
  • line 35
  • line 71
• net/netfilter/ipvs/ip_vs_core.c, line 694
• net/netfilter/ipvs/ip_vs_proto_tcp.c
  • line 113
  • line 119
  • line 134
  • line 140
• net/netfilter/ipvs/ip_vs_proto_udp.c
  • line 101
  • line 107
  • line 123
  • line 129
• net/netfilter/nf_nat_proto.c, line 610
• net/netfilter/nft_payload.c
  • line 485
  • line 566
• net/netfilter/utils.c, line 21
• net/sched/act_csum.c
  • line 157
  • line 175
• net/sunrpc/socklib.c, line 190
• net/unix/af_unix.c, line 174
• samples/bpf/xdpsock_user.c, line 702
• tools/testing/selftests/bpf/xdpxceiver.c, line 196