netdev - Re: [PATCH resend 1/3] Revert "net: fec: fix missing napi

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Message-ID: <CAHrpEqQLkjCOq0doaM0zNMkgjNkE_pOLxjoFJWNPuQ6CRHCbBw@mail.gmail.com>
Date:	Fri, 26 Apr 2013 17:32:02 +0800
From:	Frank Li <lznuaa@...il.com>
To:	Lucas Stach <l.stach@...gutronix.de>
Cc:	"netdev@...r.kernel.org" <netdev@...r.kernel.org>,
	David Miller <davem@...emloft.net>,
	Frank Li <Frank.Li@...escale.com>,
	Fabio Estevam <festevam@...il.com>,
	Shawn Guo <shawn.guo@...aro.org>
Subject: Re: [PATCH resend 1/3] Revert "net: fec: fix missing napi_disable call"

2013/4/26 Lucas Stach <l.stach@...gutronix.de>:
> This reverts commit 3f104c38259dcb3e5443c246f0805bc04d887cc3.
>
> In preparaton to revert the other NAPI related changes.
>
> Signed-off-by: Lucas Stach <l.stach@...gutronix.de>

David:

Please hold apply this patch for some days.
Let me found a good way to fix the issue that lucas met.

This patch may cause spin_lock dead lock when using 1588 ptp.

best regards
Frank Li

> ---
>  drivers/net/ethernet/freescale/fec.c | 1 -
>  1 file changed, 1 deletion(-)
>
> diff --git a/drivers/net/ethernet/freescale/fec.c b/drivers/net/ethernet/freescale/fec.c
> index 73195f6..afb52eb 100644
> --- a/drivers/net/ethernet/freescale/fec.c
> +++ b/drivers/net/ethernet/freescale/fec.c
> @@ -1490,7 +1490,6 @@ fec_enet_close(struct net_device *ndev)
>         struct fec_enet_private *fep = netdev_priv(ndev);
>
>         /* Don't know what to do yet. */
> -       napi_disable(&fep->napi);
>         fep->opened = 0;
>         netif_stop_queue(ndev);
>         fec_stop(ndev);
> --
> 1.8.2.rc2
>
> --
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