[PATCH] davinci: da850/omap-l138: Add Carrier Link OK check in Davinci RX Handler
Sergei Shtylyov
sshtylyov at mvista.com
Fri Feb 25 06:55:45 EST 2011
Hello.
On 25-02-2011 12:56, Hegde, Vinay wrote:
This is not a patch to arch/arm/mach-davinci/, so the summary prefix
should not be "davinci: da850/omap-l138:" but rather "davinci_emac:" as you're
patching this driver.
> This patch adds an additional check in the Davinci EMAC RX Handler,
> which tests the __LINK_STATE_NOCARRIER flag along with the
> __LINK_STATE_START flag as part EMAC shutting down procedure.
> This avoids
> WARNING: at drivers/net/davinci_emac.c:1040 emac_rx_handler+0xf8/0x120()
> during rtcwake used to suspend the target for a specified duration.
> Signed-off-by: Hegde, Vinay <vinay.hegde at ti.com>
> diff --git a/drivers/net/davinci_emac.c b/drivers/net/davinci_emac.c
> index 2a628d1..7018bfe 100644
> --- a/drivers/net/davinci_emac.c
> +++ b/drivers/net/davinci_emac.c
> @@ -1008,7 +1008,7 @@ static void emac_rx_handler(void *token, int len, int status)
> int ret;
>
> /* free and bail if we are shutting down */
> - if (unlikely(!netif_running(ndev))) {
> + if (unlikely(!netif_running(ndev) || !netif_carrier_ok(ndev))) {
> dev_kfree_skb_any(skb);
> return;
> }
WBR, Sergei
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