From: Edward Cree <ecree@solarflare.com>
Date: Tue, 30 Jun 2020 13:15:34 +0100
Subject: sfc: don't call tx_remove if there isn't one
Patch-mainline: v5.9-rc1
Git-commit: c72ae701ee34385c9d4a17b59d127ca6a428300c
References: jsc#SLE-16683

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 <ecree@solarflare.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Acked-by: Thomas Bogendoerfer <tbogendoerfer@suse.de>
---
 drivers/net/ethernet/sfc/nic_common.h |    3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

--- 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(struc
 }
 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)
 {