From mboxrd@z Thu Jan 1 00:00:00 1970 From: Yoshihiro Shimoda Date: Mon, 09 Jun 2014 10:39:24 +0000 Subject: [PATCH 2/2] net: sh_eth: Fix timing of RACT setting in sh_eth_rx() Message-Id: <53958EDC.1070307@renesas.com> List-Id: MIME-Version: 1.0 Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit To: "netdev@vger.kernel.org" Cc: SH-Linux , Sergei Shtylyov This patch fixes an issue that we cannot use nfs rootfs correctly on r8a7790 when the command below runs on a host PC. $ sudo ping -f -l 8 $BOARD_IP_ADDR Since the driver sets the RACT to 1 in the first while loop of sh_eth_rx(), the controller accepts a next frame into the next RX descriptor during the while loop. But, in the first while loop doesn't allocate a next skb. So, this patch removes the RACT setting in the first while loop of sh_eth_rx(). Signed-off-by: Yoshihiro Shimoda --- drivers/net/ethernet/renesas/sh_eth.c | 1 - 1 file changed, 1 deletion(-) diff --git a/drivers/net/ethernet/renesas/sh_eth.c b/drivers/net/ethernet/renesas/sh_eth.c index ad0b5bd..2e1835f 100644 --- a/drivers/net/ethernet/renesas/sh_eth.c +++ b/drivers/net/ethernet/renesas/sh_eth.c @@ -1460,7 +1460,6 @@ static int sh_eth_rx(struct net_device *ndev, u32 intr_status, int *quota) ndev->stats.rx_packets++; ndev->stats.rx_bytes += pkt_len; } - rxdesc->status |= cpu_to_edmac(mdp, RD_RACT); entry = (++mdp->cur_rx) % mdp->num_rx_ring; rxdesc = &mdp->rx_ring[entry]; } -- 1.7.9.5