netdev - Re: [PATCH v4 1/5] net: macb: fix wakeup test in runtime suspend/resume routines

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Message-ID: <e43e7ed6-c78a-7995-3f46-0bdbf32f361c@microchip.com>
Date:   Mon, 25 May 2020 10:18:16 +0200
From:   Nicolas Ferre <nicolas.ferre@...rochip.com>
To:     Jakub Kicinski <kuba@...nel.org>, <netdev@...r.kernel.org>,
        "David S. Miller" <davem@...emloft.net>, <f.fainelli@...il.com>,
        "Russell King - ARM Linux admin" <linux@...linux.org.uk>
CC:     Alexandre Belloni <alexandre.belloni@...tlin.com>,
        <antoine.tenart@...tlin.com>, <linux-kernel@...r.kernel.org>,
        <harini.katakam@...inx.com>,
        Claudiu Beznea <claudiu.beznea@...rochip.com>,
        <linux-arm-kernel@...ts.infradead.org>
Subject: Re: [PATCH v4 1/5] net: macb: fix wakeup test in runtime
 suspend/resume routines

On 07/05/2020 at 12:03, Nicolas Ferre wrote:
> On 06/05/2020 at 22:18, Jakub Kicinski wrote:
>> EXTERNAL EMAIL: Do not click links or open attachments unless you know the content is safe
>>
>> On Wed, 6 May 2020 13:37:37 +0200 nicolas.ferre@...rochip.com wrote:
>>> From: Nicolas Ferre <nicolas.ferre@...rochip.com>
>>>
>>> Use the proper struct device pointer to check if the wakeup flag
>>> and wakeup source are positioned.
>>> Use the one passed by function call which is equivalent to
>>> &bp->dev->dev.parent.
>>>
>>> It's preventing the trigger of a spurious interrupt in case the
>>> Wake-on-Lan feature is used.
>>>
>>> Fixes: bc1109d04c39 ("net: macb: Add pm runtime support")
>>
>>           Fixes tag: Fixes: bc1109d04c39 ("net: macb: Add pm runtime support")
>>           Has these problem(s):
>>                   - Target SHA1 does not exist
> 
> Indeed, it's:
> Fixes: d54f89af6cc4 ("net: macb: Add pm runtime support")
> 
> David: do I have to respin or you can modify it?

David, all, I'm about to resend this series (alternative to "ping"), 
however:

1/ Now that it's late in the cycle, I'd like that you tell me if I 
rebase on net-next because it isn't not sensible to queue such (non 
urgeent) changes at rc7

2/ I didn't get answers from Russell and can't tell if there's a better 
way of handling underlying phylink error of phylink_ethtool_set_wol() in 
patch 3/5

Best regards,
   Nicolas

>>> Signed-off-by: Nicolas Ferre <nicolas.ferre@...rochip.com>
>>> Reviewed-by: Florian Fainelli <f.fainelli@...il.com>
>>> Cc: Claudiu Beznea <claudiu.beznea@...rochip.com>
>>> Cc: Harini Katakam <harini.katakam@...inx.com>
>>> ---
>>>    drivers/net/ethernet/cadence/macb_main.c | 4 ++--
>>>    1 file changed, 2 insertions(+), 2 deletions(-)
>>>
>>> diff --git a/drivers/net/ethernet/cadence/macb_main.c b/drivers/net/ethernet/cadence/macb_main.c
>>> index 36290a8e2a84..d11fae37d46b 100644
>>> --- a/drivers/net/ethernet/cadence/macb_main.c
>>> +++ b/drivers/net/ethernet/cadence/macb_main.c
>>> @@ -4616,7 +4616,7 @@ static int __maybe_unused macb_runtime_suspend(struct device *dev)
>>>         struct net_device *netdev = dev_get_drvdata(dev);
>>>         struct macb *bp = netdev_priv(netdev);
>>>
>>> -     if (!(device_may_wakeup(&bp->dev->dev))) {
>>> +     if (!(device_may_wakeup(dev))) {
>>>                 clk_disable_unprepare(bp->tx_clk);
>>>                 clk_disable_unprepare(bp->hclk);
>>>                 clk_disable_unprepare(bp->pclk);
>>> @@ -4632,7 +4632,7 @@ static int __maybe_unused macb_runtime_resume(struct device *dev)
>>>         struct net_device *netdev = dev_get_drvdata(dev);
>>>         struct macb *bp = netdev_priv(netdev);
>>>
>>> -     if (!(device_may_wakeup(&bp->dev->dev))) {
>>> +     if (!(device_may_wakeup(dev))) {
>>>                 clk_prepare_enable(bp->pclk);
>>>                 clk_prepare_enable(bp->hclk);
>>>                 clk_prepare_enable(bp->tx_clk);
>>
> 
> 


-- 
Nicolas Ferre