From: Thomas Bogendoerfer <tsbogend@alpha.franken.de>
To: "David S. Miller" <davem@davemloft.net>,
Jakub Kicinski <kuba@kernel.org>,
Rob Herring <robh+dt@kernel.org>,
netdev@vger.kernel.org, devicetree@vger.kernel.org,
linux-kernel@vger.kernel.org, linux-mips@vger.kernel.org
Cc: Andrew Lunn <andrew@lunn.ch>
Subject: [PATCH v6 net-next 03/10] net: korina: Remove not needed cache flushes
Date: Mon, 19 Apr 2021 00:19:41 +0200 [thread overview]
Message-ID: <20210418221949.130779-4-tsbogend@alpha.franken.de> (raw)
In-Reply-To: <20210418221949.130779-1-tsbogend@alpha.franken.de>
Descriptors are mapped uncached so there is no need to do any cache
handling for them.
Reviewed-by: Andrew Lunn <andrew@lunn.ch>
Signed-off-by: Thomas Bogendoerfer <tsbogend@alpha.franken.de>
---
drivers/net/ethernet/korina.c | 6 ------
1 file changed, 6 deletions(-)
diff --git a/drivers/net/ethernet/korina.c b/drivers/net/ethernet/korina.c
index b56de01f6bb8..c7abb4a8dd37 100644
--- a/drivers/net/ethernet/korina.c
+++ b/drivers/net/ethernet/korina.c
@@ -231,7 +231,6 @@ static int korina_send_packet(struct sk_buff *skb, struct net_device *dev)
dma_cache_wback((u32)skb->data, skb->len);
/* Setup the transmit descriptor. */
- dma_cache_inv((u32) td, sizeof(*td));
td->ca = CPHYSADDR(skb->data);
chain_prev = (lp->tx_chain_tail - 1) & KORINA_TDS_MASK;
chain_next = (lp->tx_chain_tail + 1) & KORINA_TDS_MASK;
@@ -284,7 +283,6 @@ static int korina_send_packet(struct sk_buff *skb, struct net_device *dev)
lp->tx_chain_tail = chain_next;
}
}
- dma_cache_wback((u32) td, sizeof(*td));
netif_trans_update(dev);
spin_unlock_irqrestore(&lp->lock, flags);
@@ -373,8 +371,6 @@ static int korina_rx(struct net_device *dev, int limit)
u32 devcs, pkt_len, dmas;
int count;
- dma_cache_inv((u32)rd, sizeof(*rd));
-
for (count = 0; count < limit; count++) {
skb = lp->rx_skb[lp->rx_next_done];
skb_new = NULL;
@@ -453,7 +449,6 @@ static int korina_rx(struct net_device *dev, int limit)
~DMA_DESC_COD;
lp->rx_next_done = (lp->rx_next_done + 1) & KORINA_RDS_MASK;
- dma_cache_wback((u32)rd, sizeof(*rd));
rd = &lp->rd_ring[lp->rx_next_done];
writel(~DMA_STAT_DONE, &lp->rx_dma_regs->dmas);
}
@@ -468,7 +463,6 @@ static int korina_rx(struct net_device *dev, int limit)
rd->devcs = 0;
skb = lp->rx_skb[lp->rx_next_done];
rd->ca = CPHYSADDR(skb->data);
- dma_cache_wback((u32)rd, sizeof(*rd));
korina_chain_rx(lp, rd);
}
--
2.29.2
next prev parent reply other threads:[~2021-04-18 22:20 UTC|newest]
Thread overview: 12+ messages / expand[flat|nested] mbox.gz Atom feed top
2021-04-18 22:19 [PATCH v6 net-next 00/10] net: Korina improvements Thomas Bogendoerfer
2021-04-18 22:19 ` [PATCH v6 net-next 01/10] net: korina: Fix MDIO functions Thomas Bogendoerfer
2021-04-18 22:19 ` [PATCH v6 net-next 02/10] net: korina: Use devres functions Thomas Bogendoerfer
2021-04-18 22:19 ` Thomas Bogendoerfer [this message]
2021-04-18 22:19 ` [PATCH v6 net-next 04/10] net: korina: Remove nested helpers Thomas Bogendoerfer
2021-04-18 22:19 ` [PATCH v6 net-next 05/10] net: korina: Use DMA API Thomas Bogendoerfer
2021-04-18 22:19 ` [PATCH v6 net-next 06/10] net: korina: Only pass mac address via platform data Thomas Bogendoerfer
2021-04-18 22:19 ` [PATCH v6 net-next 07/10] net: korina: Add support for device tree Thomas Bogendoerfer
2021-04-18 22:19 ` [PATCH v6 net-next 08/10] net: korina: Get mdio input clock via common clock framework Thomas Bogendoerfer
2021-04-18 22:19 ` [PATCH v6 net-next 09/10] net: korina: Make driver COMPILE_TESTable Thomas Bogendoerfer
2021-04-18 22:19 ` [PATCH v6 net-next 10/10] dt-bindings: net: korina: Add DT bindings for IDT 79RC3243x SoCs Thomas Bogendoerfer
2021-04-19 23:10 ` [PATCH v6 net-next 00/10] net: Korina improvements patchwork-bot+netdevbpf
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