Re: [RFC PATCH 2/4] net: pass 'optlen_t' to proto[ops].getsockopt() hooks

[Stefan Metzmacher]

diff --git a/net/socket.c b/net/socket.c
index 9a0e720f0859..fa2de12c10e6 100644
--- a/net/socket.c
+++ b/net/socket.c
@@ -2350,12 +2350,15 @@ int do_sock_getsockopt(struct socket *sock, bool 
compat, int level,
        } else if (unlikely(!ops->getsockopt)) {
                err = -EOPNOTSUPP;
        } else {
-               if (WARN_ONCE(optval.is_kernel || optlen.is_kernel,
+               optlen_t _optlen = { .up = NULL, };
+
+               if (WARN_ONCE(optval.is_kernel,

Sorry, the removal of '|| optlen.is_kernel' should be in the next commit...

                              "Invalid argument type"))
                        return -EOPNOTSUPP;