netdev - Re: [PATCH v2] net/phy: micrel: Reenable interrupts during resume

lists.openwall.net		lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC
Open Source and information security mailing list archives

Hash Suite: Windows password security audit tool. GUI, reports in PDF.

[<prev] [next>] [<thread-prev] [thread-next>] [day] [month] [year] [list]

Message-ID: <55BA665A.4080103@cogentembedded.com>
Date:	Thu, 30 Jul 2015 21:00:58 +0300
From:	Sergei Shtylyov <sergei.shtylyov@...entembedded.com>
To:	Nathan Sullivan <nathan.sullivan@...com>, f.fainelli@...il.com
Cc:	netdev@...r.kernel.org, linux-kernel@...r.kernel.org
Subject: Re: [PATCH v2] net/phy: micrel: Reenable interrupts during resume

Hello.

On 07/30/2015 06:15 PM, Nathan Sullivan wrote:

> The ksz9031 has a behavior where it will clear the interrupt enable bits
> when leaving power down.  To work around this, make sure the interrupt
> bits are in the state they are expected to be when resuming.

> Signed-off-by: Nathan Sullivan <nathan.sullivan@...com>
> ---

> Changes for V2: Actually make sure it compiles this time.

> ---
>   drivers/net/phy/micrel.c |   18 +++++++++++++++++-
>   1 file changed, 17 insertions(+), 1 deletion(-)
>
> diff --git a/drivers/net/phy/micrel.c b/drivers/net/phy/micrel.c
> index 499185e..9774582 100644
> --- a/drivers/net/phy/micrel.c
> +++ b/drivers/net/phy/micrel.c
> @@ -447,6 +447,22 @@ static int ksz9031_center_flp_timing(struct phy_device *phydev)
>   	return genphy_restart_aneg(phydev);
>   }
>
> +static int ksz9031_resume(struct phy_device *phydev)
> +{
> +	int result;
> +
> +	result = genphy_resume(phydev);
> +

    I don't think empty line is needed here. Sorry for missing it in the first 
posting...

> +	if (result)
> +		return result;
> +
> +	/* This phy will reset interrupt enables when leaving power down */
> +	if (PHY_INTERRUPT_ENABLED & phydev->interrupts)
> +		result = kszphy_config_intr(phydev);
> +
> +	return result;
> +}
> +
[...]

WBR, Sergei

--
To unsubscribe from this list: send the line "unsubscribe netdev" in
the body of a message to majordomo@...r.kernel.org
More majordomo info at  http://vger.kernel.org/majordomo-info.html