ping: move ping_group_range out of CONFIG_SYSCTL
Similarly, when CONFIG_SYSCTL is not set, ping_group_range should still work, just that no one can change it. Therefore we should move it out of sysctl_net_ipv4.c. And, it should not share the same seqlock with ip_local_port_range. BTW, rename it to ->ping_group_range instead. Cc: David S. Miller <davem@davemloft.net> Cc: Francois Romieu <romieu@fr.zoreil.com> Reported-by: NStefan de Konink <stefan@konink.de> Signed-off-by: NCong Wang <xiyou.wangcong@gmail.com> Signed-off-by: NDavid S. Miller <davem@davemloft.net>
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