ixgbe: invalidate FCoE DDP context when no error status is available

The hw automatically invalidates the context if DDP is successful or there is
error detected. In case there is no error status available from the hw,
initializing the per context error status to be 1 allows the DDP context to be
still invalidated via the upper layer call to ddp_put().

Signed-off-by: Yi Zou <yi.zou@intel.com>
Tested-by: Ross Brattain <ross.b.brattain@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>

drivers/net/ixgbe/ixgbe_fcoe.c

@@ -68,7 +68,7 @@ static inline bool ixgbe_rx_is_fcoe(union ixgbe_adv_rx_desc *rx_desc)
 static inline void ixgbe_fcoe_clear_ddp(struct ixgbe_fcoe_ddp *ddp)
 {
 	ddp->len = 0;
-	ddp->err = 0;
+	ddp->err = 1;
 	ddp->udl = NULL;
 	ddp->udp = 0UL;
 	ddp->sgl = NULL;