[PATCH net-next 14/14] sfc: don't call tx_remove if there isn't one

[Edward Cree]

EF100 won't have an efx->type->tx_remove method, because there's
 nothing for it to do.  So make the call conditional.

Signed-off-by: Edward Cree <ec...@solarflare.com>
---
 drivers/net/ethernet/sfc/nic_common.h | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/drivers/net/ethernet/sfc/nic_common.h 
b/drivers/net/ethernet/sfc/nic_common.h
index 197ecac5e005..fd474d9e55e4 100644
--- a/drivers/net/ethernet/sfc/nic_common.h
+++ b/drivers/net/ethernet/sfc/nic_common.h
@@ -163,7 +163,8 @@ static inline void efx_nic_init_tx(struct efx_tx_queue 
*tx_queue)
 }
 static inline void efx_nic_remove_tx(struct efx_tx_queue *tx_queue)
 {
-       tx_queue->efx->type->tx_remove(tx_queue);
+       if (tx_queue->efx->type->tx_remove)
+               tx_queue->efx->type->tx_remove(tx_queue);
 }
 static inline void efx_nic_push_buffers(struct efx_tx_queue *tx_queue)
 {