1 files changed, 11 insertions, 2 deletions

diff --git a/net/rds/ib_cm.c b/net/rds/ib_cm.c
index 31b74f5e61ad..8a09ee7db3c1 100644
--- a/net/rds/ib_cm.c
+++ b/net/rds/ib_cm.c
@@ -183,8 +183,17 @@ void rds_ib_cm_connect_complete(struct rds_connection *conn, struct rdma_cm_even
 
         /* If the peer gave us the last packet it saw, process this as if
          * we had received a regular ACK. */
-        if (dp && dp->dp_ack_seq)
-                rds_send_drop_acked(conn, be64_to_cpu(dp->dp_ack_seq), NULL);
+        if (dp) {
+                /* dp structure start is not guaranteed to be 8 bytes aligned.
+                 * Since dp_ack_seq is 64-bit extended load operations can be
+                 * used so go through get_unaligned to avoid unaligned errors.
+                 */
+                __be64 dp_ack_seq = get_unaligned(&dp->dp_ack_seq);
+
+                if (dp_ack_seq)
+                        rds_send_drop_acked(conn, be64_to_cpu(dp_ack_seq),
+                                            NULL);
+        }
 
         rds_connect_complete(conn);
 }