cifs: remove rfc1002 hardcoded constants from cifs_discard_remaining_data()

Signed-off-by: Ronnie Sahlberg <lsahlber@redhat.com>
Signed-off-by: Steve French <smfrench@gmail.com>
Reviewed-by: Pavel Shilovsky <pshilov@microsoft.com>

1 files changed, 3 insertions, 2 deletions

diff --git a/fs/cifs/cifssmb.c b/fs/cifs/cifssmb.c
index 890b3a40c79c..6d3e40d7029c 100644
--- a/fs/cifs/cifssmb.c
+++ b/fs/cifs/cifssmb.c
@@ -1418,8 +1418,9 @@ openRetry:
 int
 cifs_discard_remaining_data(struct TCP_Server_Info *server)
 {
-        unsigned int rfclen = get_rfc1002_length(server->smallbuf);
-        int remaining = rfclen + 4 - server->total_read;
+        unsigned int rfclen = server->pdu_size;
+        int remaining = rfclen + server->vals->header_preamble_size -
+                server->total_read;
 
         while (remaining > 0) {
                 int length;