io_uring/net: initialize struct msghdr more sanely for io_recv()

We only need to clear the input fields on the first invocation, not
when potentially doing a retry.

Signed-off-by: Jens Axboe <axboe@kernel.dk>

diff --git a/io_uring/net.c b/io_uring/net.c
index 89e8390..08fe426 100644 (file)
--- a/io_uring/net.c
+++ b/io_uring/net.c
@@ -860,6 +860,14 @@ int io_recv(struct io_kiocb *req, unsigned int issue_flags)
        if (unlikely(!sock))
                return -ENOTSOCK;
 
+       msg.msg_name = NULL;
+       msg.msg_namelen = 0;
+       msg.msg_control = NULL;
+       msg.msg_get_inq = 1;
+       msg.msg_controllen = 0;
+       msg.msg_iocb = NULL;
+       msg.msg_ubuf = NULL;
+
 retry_multishot:
        if (io_do_buffer_select(req)) {
                void __user *buf;
@@ -874,14 +882,7 @@ retry_multishot:
        if (unlikely(ret))
                goto out_free;
 
-       msg.msg_name = NULL;
-       msg.msg_namelen = 0;
-       msg.msg_control = NULL;
-       msg.msg_get_inq = 1;
        msg.msg_flags = 0;
-       msg.msg_controllen = 0;
-       msg.msg_iocb = NULL;
-       msg.msg_ubuf = NULL;
 
        flags = sr->msg_flags;
        if (force_nonblock)