[RFC PATCH 4/4] io_uring: let io_uring_cmd_getsockopt() allow level other than SOL_SOCKET

do_sock_getsockopt() works with a kernel pointer for optlen now.

Link: https://lore.kernel.org/io-uring/86b1dce5-4bb4-4a0b-9cff-e72f488bf57d-eUNUBHrolfbYtjvyW6yDsg@public.gmane.org/T/#t
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Signed-off-by: Stefan Metzmacher <[email protected]>
---
 io_uring/uring_cmd.c | 3 ---
 1 file changed, 3 deletions(-)

diff --git a/io_uring/uring_cmd.c b/io_uring/uring_cmd.c
index f2cfc371f3d0..8b0cc919a60c 100644
--- a/io_uring/uring_cmd.c
+++ b/io_uring/uring_cmd.c
@@ -312,9 +312,6 @@ static inline int io_uring_cmd_getsockopt(struct socket *sock,
 	void __user *optval;
 
 	level = READ_ONCE(cmd->sqe->level);
-	if (level != SOL_SOCKET)
-		return -EOPNOTSUPP;
-
 	optval = u64_to_user_ptr(READ_ONCE(cmd->sqe->optval));
 	optname = READ_ONCE(cmd->sqe->optname);
 	optlen = READ_ONCE(cmd->sqe->optlen);
-- 
2.34.1