From: Heiner Kallweit <hkallweit1@gmail.com>
To: Realtek linux nic maintainers <nic_swsd@realtek.com>,
David Miller <davem@davemloft.net>
Cc: "netdev@vger.kernel.org" <netdev@vger.kernel.org>,
Aaro Koskinen <aaro.koskinen@iki.fi>
Subject: [PATCH net] Revert "r8169: remove not needed call to dma_sync_single_for_device"
Date: Fri, 23 Aug 2019 19:57:49 +0200 [thread overview]
Message-ID: <573e5947-3a12-f69d-d1b3-1b0d1c49f367@gmail.com> (raw)
This reverts commit f072218cca5b076dd99f3dfa3aaafedfd0023a51.
As reported by Aaro this patch causes network problems on
MIPS Loongson platform. Therefore revert it.
Fixes: f072218cca5b ("r8169: remove not needed call to dma_sync_single_for_device")
Signed-off-by: Heiner Kallweit <hkallweit1@gmail.com>
Reported-by: Aaro Koskinen <aaro.koskinen@iki.fi>
---
This fix doesn't apply cleanly on net-next, I'll provide a separate one for net-next.
---
drivers/net/ethernet/realtek/r8169_main.c | 1 +
1 file changed, 1 insertion(+)
diff --git a/drivers/net/ethernet/realtek/r8169_main.c b/drivers/net/ethernet/realtek/r8169_main.c
index e1dd6ea60..bae0074ab 100644
--- a/drivers/net/ethernet/realtek/r8169_main.c
+++ b/drivers/net/ethernet/realtek/r8169_main.c
@@ -5921,6 +5921,7 @@ static struct sk_buff *rtl8169_try_rx_copy(void *data,
skb = napi_alloc_skb(&tp->napi, pkt_size);
if (skb)
skb_copy_to_linear_data(skb, data, pkt_size);
+ dma_sync_single_for_device(d, addr, pkt_size, DMA_FROM_DEVICE);
return skb;
}
--
2.23.0
next reply other threads:[~2019-08-23 18:03 UTC|newest]
Thread overview: 2+ messages / expand[flat|nested] mbox.gz Atom feed top
2019-08-23 17:57 Heiner Kallweit [this message]
2019-08-23 22:12 ` [PATCH net] Revert "r8169: remove not needed call to dma_sync_single_for_device" David Miller
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