Subject: linux-next: build failure after merge of the block tree

From: Stephen Rothwell <[email-masked]>
Date: Mon, 7 Dec 2020 14:09:51 +1100

Hi all,

After merging the block tree, today's linux-next build (powerpc
ppc64_defconfig) failed like this:

fs/io_uring.c: In function 'io_shutdown':
fs/io_uring.c:3782:9: error: too many arguments to function 'sock_from_file'
 3782 |  sock = sock_from_file(req->file, &ret);
      |         ^~~~~~~~~~~~~~
In file included from fs/io_uring.c:63:
include/linux/net.h:243:16: note: declared here
  243 | struct socket *sock_from_file(struct file *file);
      |                ^~~~~~~~~~~~~~

Caused by commit

  36f4fa6886a8 ("io_uring: add support for shutdown(2)")

interacting with commit

  dba4a9256bb4 ("net: Remove the err argument from sock_from_file")

from the bpf-next tree.

I have applied the following merge fix patch.

From: Stephen Rothwell <[email-masked]>
Date: Mon, 7 Dec 2020 14:04:10 +1100
Subject: [PATCH] fixup for "net: Remove the err argument from sock_from_file"

Signed-off-by: Stephen Rothwell <[email-masked]>
---
 fs/io_uring.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/fs/io_uring.c b/fs/io_uring.c
index cd997264dbab..91d08408f1fe 100644
--- a/fs/io_uring.c
+++ b/fs/io_uring.c
@@ -3779,9 +3779,9 @@ static int io_shutdown(struct io_kiocb *req, bool force_nonblock)
 	if (force_nonblock)
 		return -EAGAIN;
 
-	sock = sock_from_file(req->file, &ret);
+	sock = sock_from_file(req->file);
 	if (unlikely(!sock))
-		return ret;
+		return -ENOTSOCK;
 
 	ret = __sys_shutdown_sock(sock, req->shutdown.how);
 	io_req_complete(req, ret);
-- 
2.29.2

-- 
Cheers,
Stephen Rothwell