ipv6: lockless IPV6_MULTICAST_HOPS implementation

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This fixes data-races around np->mcast_hops,
and make IPV6_MULTICAST_HOPS lockless.

Note that np->mcast_hops is never negative,
thus can fit an u8 field instead of s16.

Signed-off-by: Eric Dumazet <edumazet@google.com>
Reviewed-by: David Ahern <dsahern@kernel.org>
Signed-off-by: David S. Miller <davem@davemloft.net>

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Eric Dumazet 2023-09-12 16:02:01 +00:00 • committed by David S. Miller

parent d986f52124

commit 2da23eb07c

6 changed files with 21 additions and 25 deletions

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include/net/ipv6.h

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