udp: introduce udp->udp_flags
[ Upstream commit 81b36803 ] According to syzbot, it is time to use proper atomic flags for various UDP flags. Add udp_flags field, and convert udp->corkflag to first bit in it. Signed-off-by: Eric Dumazet <edumazet@google.com> Reviewed-by: Willem de Bruijn <willemb@google.com> Signed-off-by: Paolo Abeni <pabeni@redhat.com> Stable-dep-of: a0002127 ("udp: move udp->no_check6_tx to udp->udp_flags") Signed-off-by: Sasha Levin <sashal@kernel.org>
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