netdev - [PATCH for-5.18 v1 2/3] net: Make `move_addr_to

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Date:   Sat, 29 Jan 2022 19:50:20 +0700
From:   Ammar Faizi <ammarfaizi2@...weeb.org>
To:     Jens Axboe <axboe@...nel.dk>
Cc:     Ammar Faizi <ammarfaizi2@...weeb.org>,
        io-uring Mailing List <io-uring@...r.kernel.org>,
        netdev Mailing List <netdev@...r.kernel.org>,
        GNU/Weeb Mailing List <gwml@...weeb.org>,
        Tea Inside Mailing List <timl@...r.teainside.org>,
        Linux Kernel Mailing List <linux-kernel@...r.kernel.org>,
        Pavel Begunkov <asml.silence@...il.com>,
        "David S. Miller" <davem@...emloft.net>,
        Jakub Kicinski <kuba@...nel.org>, Nugra <richiisei@...il.com>,
        Praveen Kumar <kpraveen.lkml@...il.com>,
        Alviro Iskandar Setiawan <alviro.iskandar@...il.com>,
        Ammar Faizi <ammarfaizi2@...il.com>
Subject: [PATCH for-5.18 v1 2/3] net: Make `move_addr_to_user()` be a non static function

To add recvfrom() support for io_uring, we need to call
move_addr_to_user() from fs/io_uring.c.

This makes move_addr_to_user() be a non static function so we can call
it from io_uring.

Cc: "David S. Miller" <davem@...emloft.net>
Cc: Jakub Kicinski <kuba@...nel.org>
Cc: netdev@...r.kernel.org
Cc: Nugra <richiisei@...il.com>
Cc: Alviro Iskandar Setiawan <alviro.iskandar@...il.com>
Signed-off-by: Ammar Faizi <ammarfaizi2@...weeb.org>
---
v1:
  - Add Alviro Iskandar Setiawan to CC list (tester).

RFC v4:
  * No changes *

RFC v3:
  * No changes *

RFC v2:
  - Added Nugra to CC list (tester).

---
---
 include/linux/socket.h | 2 ++
 net/socket.c           | 4 ++--
 2 files changed, 4 insertions(+), 2 deletions(-)

diff --git a/include/linux/socket.h b/include/linux/socket.h
index 8ef26d89ef49..0d0bc1ace50c 100644
--- a/include/linux/socket.h
+++ b/include/linux/socket.h
@@ -371,6 +371,8 @@ struct ucred {
 #define IPX_TYPE	1
 
 extern int move_addr_to_kernel(void __user *uaddr, int ulen, struct sockaddr_storage *kaddr);
+extern int move_addr_to_user(struct sockaddr_storage *kaddr, int klen,
+			     void __user *uaddr, int __user *ulen);
 extern int put_cmsg(struct msghdr*, int level, int type, int len, void *data);
 
 struct timespec64;
diff --git a/net/socket.c b/net/socket.c
index 50cf75730fd7..9bc586ab4e93 100644
--- a/net/socket.c
+++ b/net/socket.c
@@ -268,8 +268,8 @@ int move_addr_to_kernel(void __user *uaddr, int ulen, struct sockaddr_storage *k
  *	specified. Zero is returned for a success.
  */
 
-static int move_addr_to_user(struct sockaddr_storage *kaddr, int klen,
-			     void __user *uaddr, int __user *ulen)
+int move_addr_to_user(struct sockaddr_storage *kaddr, int klen,
+		      void __user *uaddr, int __user *ulen)
 {
 	int err;
 	int len;
-- 
2.32.0