From mboxrd@z Thu Jan 1 00:00:00 1970 From: Florian Fainelli Subject: Re: [PATCH] net: phy: don't reschedule state machine when PHY is halted Date: Wed, 19 Sep 2018 17:04:04 -0700 Message-ID: References: Mime-Version: 1.0 Content-Type: text/plain; charset=utf-8 Content-Transfer-Encoding: 7bit Cc: "netdev@vger.kernel.org" To: Heiner Kallweit , Andrew Lunn , David Miller Return-path: Received: from mail-wr1-f66.google.com ([209.85.221.66]:40515 "EHLO mail-wr1-f66.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1726180AbeITFoc (ORCPT ); Thu, 20 Sep 2018 01:44:32 -0400 Received: by mail-wr1-f66.google.com with SMTP id y8-v6so3855012wrh.7 for ; Wed, 19 Sep 2018 17:04:08 -0700 (PDT) In-Reply-To: Content-Language: en-US Sender: netdev-owner@vger.kernel.org List-ID: On 09/18/2018 01:17 PM, Heiner Kallweit wrote: > On 18.09.2018 22:02, Florian Fainelli wrote: >> On 09/18/2018 12:12 PM, Heiner Kallweit wrote: >>> I think I've seen a similar or same patch before, not sure why it >>> didn't make it yet. When being in state PHY_HALTED we don't have to >>> reschedule the state machine, phy_start() will start it again. >> >> Yes, this is conceptually the same patch as as this one: >> >> https://patchwork.ozlabs.org/patch/830415/ >> > Thanks for the link, this is what I was referring to. > >> I prefer your version, though the comment in the original patch explains >> why. >> > To be sure I understand you correctly: > You're fine with the patch as is or would you prefer to add a comment > like in the original patch ? Correct, unless you think this does not warrant a comment and it is clear enough as-is? > >>> >>> Signed-off-by: Heiner Kallweit >>> --- >>> drivers/net/phy/phy.c | 2 +- >>> 1 file changed, 1 insertion(+), 1 deletion(-) >>> >>> diff --git a/drivers/net/phy/phy.c b/drivers/net/phy/phy.c >>> index 1ee25877c..c78203b25 100644 >>> --- a/drivers/net/phy/phy.c >>> +++ b/drivers/net/phy/phy.c >>> @@ -1123,7 +1123,7 @@ void phy_state_machine(struct work_struct *work) >>> * PHY, if PHY_IGNORE_INTERRUPT is set, then we will be moving >>> * between states from phy_mac_interrupt() >>> */ >>> - if (phy_polling_mode(phydev)) >>> + if (phy_polling_mode(phydev) && old_state != PHY_HALTED) >>> queue_delayed_work(system_power_efficient_wq, &phydev->state_queue, >>> PHY_STATE_TIME * HZ); >>> } >>> >> >> > -- Florian