[PATCH v4] xen: update pvcalls_front_accept prototype

[Stefano Stabellini <sstabellini@xxxxxxxxxx>]

While currently there are no in-tree callers of these functions, it is
best to keep them up-to-date with the latest network API.

In addition, add the missing EXPORT_SYMBOL_GPL to the functions listed
in pvcalls-front.h.

Signed-off-by: Stefano Stabellini <stefano.stabellini@xxxxxxx>
---
Changes in v4:
- add the missing EXPORT_SYMBOL_GPL

Changes in v3:
- expand commit message
---
 drivers/xen/pvcalls-front.c | 14 ++++++++++++--
 drivers/xen/pvcalls-front.h |  2 +-
 2 files changed, 13 insertions(+), 3 deletions(-)

diff --git a/drivers/xen/pvcalls-front.c b/drivers/xen/pvcalls-front.c
index b72ee9379d77..4926d4badc57 100644
--- a/drivers/xen/pvcalls-front.c
+++ b/drivers/xen/pvcalls-front.c
@@ -341,6 +341,7 @@ int pvcalls_front_socket(struct socket *sock)
        pvcalls_exit();
        return ret;
 }
+EXPORT_SYMBOL_GPL(pvcalls_front_socket);
 
 static void free_active_ring(struct sock_mapping *map)
 {
@@ -486,6 +487,7 @@ int pvcalls_front_connect(struct socket *sock, struct 
sockaddr *addr,
        pvcalls_exit_sock(sock);
        return ret;
 }
+EXPORT_SYMBOL_GPL(pvcalls_front_connect);
 
 static int __write_ring(struct pvcalls_data_intf *intf,
                        struct pvcalls_data *data,
@@ -581,6 +583,7 @@ int pvcalls_front_sendmsg(struct socket *sock, struct 
msghdr *msg,
        pvcalls_exit_sock(sock);
        return tot_sent;
 }
+EXPORT_SYMBOL_GPL(pvcalls_front_sendmsg);
 
 static int __read_ring(struct pvcalls_data_intf *intf,
                       struct pvcalls_data *data,
@@ -666,6 +669,7 @@ int pvcalls_front_recvmsg(struct socket *sock, struct 
msghdr *msg, size_t len,
        pvcalls_exit_sock(sock);
        return ret;
 }
+EXPORT_SYMBOL_GPL(pvcalls_front_recvmsg);
 
 int pvcalls_front_bind(struct socket *sock, struct sockaddr *addr, int 
addr_len)
 {
@@ -719,6 +723,7 @@ int pvcalls_front_bind(struct socket *sock, struct sockaddr 
*addr, int addr_len)
        pvcalls_exit_sock(sock);
        return 0;
 }
+EXPORT_SYMBOL_GPL(pvcalls_front_bind);
 
 int pvcalls_front_listen(struct socket *sock, int backlog)
 {
@@ -768,8 +773,10 @@ int pvcalls_front_listen(struct socket *sock, int backlog)
        pvcalls_exit_sock(sock);
        return ret;
 }
+EXPORT_SYMBOL_GPL(pvcalls_front_listen);
 
-int pvcalls_front_accept(struct socket *sock, struct socket *newsock, int 
flags)
+int pvcalls_front_accept(struct socket *sock, struct socket *newsock,
+                        struct proto_accept_arg *arg)
 {
        struct pvcalls_bedata *bedata;
        struct sock_mapping *map;
@@ -788,7 +795,7 @@ int pvcalls_front_accept(struct socket *sock, struct socket 
*newsock, int flags)
                return -EINVAL;
        }
 
-       nonblock = flags & SOCK_NONBLOCK;
+       nonblock = arg->flags & SOCK_NONBLOCK;
        /*
         * Backend only supports 1 inflight accept request, will return
         * errors for the others
@@ -904,6 +911,7 @@ int pvcalls_front_accept(struct socket *sock, struct socket 
*newsock, int flags)
        pvcalls_exit_sock(sock);
        return ret;
 }
+EXPORT_SYMBOL_GPL(pvcalls_front_accept);
 
 static __poll_t pvcalls_front_poll_passive(struct file *file,
                                               struct pvcalls_bedata *bedata,
@@ -1004,6 +1012,7 @@ __poll_t pvcalls_front_poll(struct file *file, struct 
socket *sock,
        pvcalls_exit_sock(sock);
        return ret;
 }
+EXPORT_SYMBOL_GPL(pvcalls_front_poll);
 
 int pvcalls_front_release(struct socket *sock)
 {
@@ -1087,6 +1096,7 @@ int pvcalls_front_release(struct socket *sock)
        pvcalls_exit();
        return 0;
 }
+EXPORT_SYMBOL_GPL(pvcalls_front_release);
 
 static const struct xenbus_device_id pvcalls_front_ids[] = {
        { "pvcalls" },
diff --git a/drivers/xen/pvcalls-front.h b/drivers/xen/pvcalls-front.h
index f694ad77379f..881ef14660bc 100644
--- a/drivers/xen/pvcalls-front.h
+++ b/drivers/xen/pvcalls-front.h
@@ -12,7 +12,7 @@ int pvcalls_front_bind(struct socket *sock,
 int pvcalls_front_listen(struct socket *sock, int backlog);
 int pvcalls_front_accept(struct socket *sock,
                         struct socket *newsock,
-                        int flags);
+                        struct proto_accept_arg *arg);
 int pvcalls_front_sendmsg(struct socket *sock,
                          struct msghdr *msg,
                          size_t len);
-- 
2.25.1