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ip_tunnel, bpf: ip_tunnel_info_opts_{get, set} depends on CONFIG_INET

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Helpers like ip_tunnel_info_opts_{get,set}() are only available if
CONFIG_INET is set, thus add an empty definition into the header for
the !CONFIG_INET case, where already other empty inline helpers are
defined.

This avoids ifdef kludge inside filter.c, but also vxlan and geneve
themself where this facility can only be used with, depend on INET
being set. For the !INET case TUNNEL_OPTIONS_PRESENT would never be
set in flags.

Fixes: 14ca0751c9 ("bpf: support for access to tunnel options")
Reported-by: Fengguang Wu <fengguang.wu@intel.com>
Signed-off-by: Daniel Borkmann <daniel@iogearbox.net>
Acked-by: Alexei Starovoitov <ast@kernel.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
Daniel Borkmann 2016-03-08 23:36:03 +01:00 committed by David S. Miller
parent f14b488d50
commit e28e87ed47
1 changed files with 11 additions and 0 deletions
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11
include/net/ip_tunnels.h
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@ -369,6 +369,17 @@ static inline void ip_tunnel_unneed_metadata(void)
{
}
static inline void ip_tunnel_info_opts_get(void *to,
const struct ip_tunnel_info *info)
{
}
static inline void ip_tunnel_info_opts_set(struct ip_tunnel_info *info,
const void *from, int len)
{
info->options_len = 0;
}
#endif /* CONFIG_INET */
#endif /* __NET_IP_TUNNELS_H */