const golang.org/x/sys/unix.IFLA_GENEVE_PORT

one use

	golang.org/x/sys/unix (current package)
		ztypes_linux.go#L1802: 	IFLA_GENEVE_PORT                           = 0x5

The pages are generated with Golds v0.7.6. (GOOS=linux GOARCH=amd64)