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sh_eth: fix wakeup event reporting from MagicPacket 

If a link change interrupt happens along side the MagicPacket interrupt
and the link change interrupt is ignored the interrupt handler will
return and the wakeup event is not registered. Fix this by moving the
MagicPacket check before the link change check.

Signed-off-by: Niklas Söderlund <niklas.soderlund+renesas@ragnatech.se>
Reported-by: Sergei Shtylyov <sergei.shtylyov@cogentembedded.com>
Acked-by: Sergei Shtylyov <sergei.shtylyov@cogentembedded.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
Niklas Söderlund 2017-02-01 15:41:55 +01:00 committed by David S. Miller
parent 5e2ed1329e
commit 0cf45a3b1e
1 changed files with 2 additions and 2 deletions
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4
drivers/net/ethernet/renesas/sh_eth.c
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@ -1605,6 +1605,8 @@ static void sh_eth_emac_interrupt(struct net_device *ndev)
sh_eth_write(ndev, felic_stat, ECSR); /* clear int */
if (felic_stat & ECSR_ICD)
ndev->stats.tx_carrier_errors++;
if (felic_stat & ECSR_MPD)
pm_wakeup_event(&mdp->pdev->dev, 0);
if (felic_stat & ECSR_LCHNG) {
/* Link Changed */
if (mdp->cd->no_psr || mdp->no_ether_link)
@ -1624,8 +1626,6 @@ static void sh_eth_emac_interrupt(struct net_device *ndev)
sh_eth_rcv_snd_enable(ndev);
}
}
if (felic_stat & ECSR_MPD)
pm_wakeup_event(&mdp->pdev->dev, 0);
}
/* error control function */