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ipv6: introduce dst_rt6_info() helper

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Instead of (struct rt6_info *)dst casts, we can use :

 #define dst_rt6_info(_ptr) \
         container_of_const(_ptr, struct rt6_info, dst)

Some places needed missing const qualifiers :

ip6_confirm_neigh(), ipv6_anycast_destination(),
ipv6_unicast_destination(), has_gateway()

v2: added missing parts (David Ahern)

Signed-off-by: Eric Dumazet <edumazet@google.com>
Reviewed-by: David Ahern <dsahern@kernel.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
Eric Dumazet
2024-04-26 15:19:52 +00:00
committed by David S. Miller
parent fac87d32a0
commit e8dfd42c17
30 changed files with 77 additions and 86 deletions
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2
net/sctp/ipv6.c
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@ -415,7 +415,7 @@ out:
if (!IS_ERR_OR_NULL(dst)) {
struct rt6_info *rt;
rt = (struct rt6_info *)dst;
rt = dst_rt6_info(dst);
t->dst_cookie = rt6_get_cookie(rt);
pr_debug("rt6_dst:%pI6/%d rt6_src:%pI6\n",
&rt->rt6i_dst.addr, rt->rt6i_dst.plen,