[PATCH v4 141/145] smb: smbdirect: introduce smbdirect_socket_bind()

[Stefan Metzmacher]

This will be used by the server in the next steps.

Cc: Steve French <smfrench at gmail.com>
Cc: Tom Talpey <tom at talpey.com>
Cc: Long Li <longli at microsoft.com>
Cc: Namjae Jeon <linkinjeon at kernel.org>
Cc: linux-cifs at vger.kernel.org
Cc: samba-technical at lists.samba.org
Signed-off-by: Stefan Metzmacher <metze at samba.org>
---
 fs/smb/common/smbdirect/smbdirect_public.h |  3 +++
 fs/smb/common/smbdirect/smbdirect_socket.c | 16 ++++++++++++++++
 2 files changed, 19 insertions(+)

diff --git a/fs/smb/common/smbdirect/smbdirect_public.h b/fs/smb/common/smbdirect/smbdirect_public.h
index a5b15fce840c..7404f7e5bf52 100644
--- a/fs/smb/common/smbdirect/smbdirect_public.h
+++ b/fs/smb/common/smbdirect/smbdirect_public.h
@@ -85,6 +85,9 @@ bool smbdirect_connection_is_connected(struct smbdirect_socket *sc);
 __SMBDIRECT_PUBLIC__
 int smbdirect_connection_wait_for_connected(struct smbdirect_socket *sc);
 
+__SMBDIRECT_PUBLIC__
+int smbdirect_socket_bind(struct smbdirect_socket *sc, struct sockaddr *addr);
+
 __SMBDIRECT_PUBLIC__
 void smbdirect_socket_shutdown(struct smbdirect_socket *sc);
 
diff --git a/fs/smb/common/smbdirect/smbdirect_socket.c b/fs/smb/common/smbdirect/smbdirect_socket.c
index cb57ed994c6c..b04ee8f2bd2a 100644
--- a/fs/smb/common/smbdirect/smbdirect_socket.c
+++ b/fs/smb/common/smbdirect/smbdirect_socket.c
@@ -663,6 +663,22 @@ void smbdirect_socket_destroy_sync(struct smbdirect_socket *sc)
 		SMBDIRECT_DEBUG_ERR_PTR(sc->first_error));
 }
 
+__SMBDIRECT_PUBLIC__
+int smbdirect_socket_bind(struct smbdirect_socket *sc, struct sockaddr *addr)
+{
+	int ret;
+
+	if (sc->status != SMBDIRECT_SOCKET_CREATED)
+		return -EINVAL;
+
+	ret = rdma_bind_addr(sc->rdma.cm_id, addr);
+	if (ret)
+		return ret;
+
+	return 0;
+}
+__SMBDIRECT_EXPORT_SYMBOL__(smbdirect_socket_bind);
+
 __SMBDIRECT_PUBLIC__
 void smbdirect_socket_shutdown(struct smbdirect_socket *sc)
 {
-- 
2.43.0