Defined in 1 files as a macro:

• include/uapi/linux/in.h, line 158 (as a macro)

Referenced in 4 files:

• net/ipv4/igmp.c
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• net/ipv4/ip_sockglue.c
  • line 995
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• net/ipv6/ipv6_sockglue.c
  • line 711
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• net/ipv6/mcast.c
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