ip*_mc_gsfget(): lift copyout of struct group_filter into callers
pass the userland pointer to the array in its tail, so that part
gets copied out by our functions; copyout of everything else is
done in the callers. Rationale: reuse for compat; the array
is the same in native and compat, the layout of parts before it
is different for compat.
Signed-off-by: Al Viro <[email protected]>
diff --git a/include/net/ipv6.h b/include/net/ipv6.h
index 5fc3a9d..c45eb78d 100644
--- a/include/net/ipv6.h
+++ b/include/net/ipv6.h
@@ -1138,7 +1138,7 @@ int ip6_mc_source(int add, int omode, struct sock *sk,
struct group_source_req *pgsr);
int ip6_mc_msfilter(struct sock *sk, struct group_filter *gsf);
int ip6_mc_msfget(struct sock *sk, struct group_filter *gsf,
- struct group_filter __user *optval, int __user *optlen);
+ struct sockaddr_storage __user *p);
#ifdef CONFIG_PROC_FS
int ac6_proc_init(struct net *net);
