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authorGavin Li <gavinl@nvidia.com>2023-03-16 09:07:57 +0200
committerJakub Kicinski <kuba@kernel.org>2023-03-17 22:41:16 -0700
commitbc9d003dc48c381763c3a6309bfc5eecf9962b9c (patch)
tree3ebd82ebb5de7c1752a02fc52619db2631ccb13d /include/net/ip_tunnels.h
parent58de53c1025836529af9e22e96375d0874e2baca (diff)
ip_tunnel: Preserve pointer const in ip_tunnel_info_opts
Change ip_tunnel_info_opts( ) from static function to macro to cast return value and preserve the const-ness of the pointer. Signed-off-by: Gavin Li <gavinl@nvidia.com> Reviewed-by: Eric Dumazet <edumazet@google.com> Reviewed-by: Simon Horman <simon.horman@corigine.com> Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Diffstat (limited to 'include/net/ip_tunnels.h')
-rw-r--r--include/net/ip_tunnels.h11
1 files changed, 6 insertions, 5 deletions
diff --git a/include/net/ip_tunnels.h b/include/net/ip_tunnels.h
index fca357679816..255b32a90850 100644
--- a/include/net/ip_tunnels.h
+++ b/include/net/ip_tunnels.h
@@ -67,6 +67,12 @@ struct ip_tunnel_key {
GENMASK((sizeof_field(struct ip_tunnel_info, \
options_len) * BITS_PER_BYTE) - 1, 0)
+#define ip_tunnel_info_opts(info) \
+ _Generic(info, \
+ const struct ip_tunnel_info * : ((const void *)((info) + 1)),\
+ struct ip_tunnel_info * : ((void *)((info) + 1))\
+ )
+
struct ip_tunnel_info {
struct ip_tunnel_key key;
#ifdef CONFIG_DST_CACHE
@@ -485,11 +491,6 @@ static inline void iptunnel_xmit_stats(struct net_device *dev, int pkt_len)
}
}
-static inline void *ip_tunnel_info_opts(struct ip_tunnel_info *info)
-{
- return info + 1;
-}
-
static inline void ip_tunnel_info_opts_get(void *to,
const struct ip_tunnel_info *info)
{