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: Tue, 18 Sep 2018 13:02:08 -0700 Message-ID: References: Mime-Version: 1.0 Content-Type: text/plain; charset=utf-8 Content-Transfer-Encoding: 8bit Cc: "netdev@vger.kernel.org" To: Heiner Kallweit , Andrew Lunn , David Miller Return-path: Received: from mail-wr1-f68.google.com ([209.85.221.68]:44737 "EHLO mail-wr1-f68.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1730017AbeISBg3 (ORCPT ); Tue, 18 Sep 2018 21:36:29 -0400 Received: by mail-wr1-f68.google.com with SMTP id v16-v6so3397370wro.11 for ; Tue, 18 Sep 2018 13:02:19 -0700 (PDT) In-Reply-To: Content-Language: en-US Sender: netdev-owner@vger.kernel.org List-ID: 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/ I prefer your version, though the comment in the original patch explains why. > > 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