netdev - [PATCH v3 net-next 09/12] net: stmmac: Remove uneeded check for GMAC version in stmmac

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Message-Id: <b31ff843db3ab3468b96ffc688c026487c3e5979.1526651009.git.joabreu@synopsys.com>
Date:   Fri, 18 May 2018 14:56:06 +0100
From:   Jose Abreu <Jose.Abreu@...opsys.com>
To:     netdev@...r.kernel.org
Cc:     Jose Abreu <Jose.Abreu@...opsys.com>,
        "David S. Miller" <davem@...emloft.net>,
        Joao Pinto <Joao.Pinto@...opsys.com>,
        Vitor Soares <Vitor.Soares@...opsys.com>,
        Giuseppe Cavallaro <peppe.cavallaro@...com>,
        Alexandre Torgue <alexandre.torgue@...com>
Subject: [PATCH v3 net-next 09/12] net: stmmac: Remove uneeded check for GMAC version in stmmac_xmit

We either have .enable_dma_transmission or .set_tx_tail_ptr in the HW
table callbacks, we can never have both so there is no need to check for
GMAC version.

Signed-off-by: Jose Abreu <joabreu@...opsys.com>
Cc: David S. Miller <davem@...emloft.net>
Cc: Joao Pinto <jpinto@...opsys.com>
Cc: Vitor Soares <soares@...opsys.com>
Cc: Giuseppe Cavallaro <peppe.cavallaro@...com>
Cc: Alexandre Torgue <alexandre.torgue@...com>
---
 drivers/net/ethernet/stmicro/stmmac/dwmac4_dma.h  |    1 -
 drivers/net/ethernet/stmicro/stmmac/stmmac_main.c |    7 ++-----
 2 files changed, 2 insertions(+), 6 deletions(-)

diff --git a/drivers/net/ethernet/stmicro/stmmac/dwmac4_dma.h b/drivers/net/ethernet/stmicro/stmmac/dwmac4_dma.h
index 8474bf9..c63c1fe 100644
--- a/drivers/net/ethernet/stmicro/stmmac/dwmac4_dma.h
+++ b/drivers/net/ethernet/stmicro/stmmac/dwmac4_dma.h
@@ -184,7 +184,6 @@
 #define DMA_CHAN0_DBG_STAT_RPS_SHIFT	8
 
 int dwmac4_dma_reset(void __iomem *ioaddr);
-void dwmac4_enable_dma_transmission(void __iomem *ioaddr, u32 tail_ptr);
 void dwmac4_enable_dma_irq(void __iomem *ioaddr, u32 chan);
 void dwmac410_enable_dma_irq(void __iomem *ioaddr, u32 chan);
 void dwmac4_disable_dma_irq(void __iomem *ioaddr, u32 chan);
diff --git a/drivers/net/ethernet/stmicro/stmmac/stmmac_main.c b/drivers/net/ethernet/stmicro/stmmac/stmmac_main.c
index 34c1fcc..1e7ded6 100644
--- a/drivers/net/ethernet/stmicro/stmmac/stmmac_main.c
+++ b/drivers/net/ethernet/stmicro/stmmac/stmmac_main.c
@@ -3166,11 +3166,8 @@ static netdev_tx_t stmmac_xmit(struct sk_buff *skb, struct net_device *dev)
 
 	netdev_tx_sent_queue(netdev_get_tx_queue(dev, queue), skb->len);
 
-	if (priv->synopsys_id < DWMAC_CORE_4_00)
-		stmmac_enable_dma_transmission(priv, priv->ioaddr);
-	else
-		stmmac_set_tx_tail_ptr(priv, priv->ioaddr, tx_q->tx_tail_addr,
-				queue);
+	stmmac_enable_dma_transmission(priv, priv->ioaddr);
+	stmmac_set_tx_tail_ptr(priv, priv->ioaddr, tx_q->tx_tail_addr, queue);
 
 	return NETDEV_TX_OK;
 
-- 
1.7.1