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Date: Fri, 21 Oct 2022 22:55:01 +0200 From: Heiner Kallweit <hkallweit1@...il.com> To: Kunihiko Hayashi <hayashi.kunihiko@...ionext.com>, Andrew Lunn <andrew@...n.ch>, Russell King <linux@...linux.org.uk>, "David S. Miller" <davem@...emloft.net>, Eric Dumazet <edumazet@...gle.com>, Jakub Kicinski <kuba@...nel.org>, Paolo Abeni <pabeni@...hat.com> Cc: netdev@...r.kernel.org, linux-kernel@...r.kernel.org Subject: Re: [PATCH net] net: ethernet: ave: Remove duplicate suspend/resume calls for phy On 21.10.2022 19:45, Kunihiko Hayashi wrote: > Since AVE has its own suspend/resume functions, there is no need to call > mdio_bus suspend/resume functions. Set phydev->mac_managed_pm to true > to avoid the calls. > The commit description doesn't make clear (any longer) what the issue is that you're fixing. You should mention the WARN_ON() dump here like in your first attempt. > In addition, ave_open() executes __phy_resume() via phy_start() in > ave_resume(), so no need to call phy_resume() explicitly. Remove it. > This sounds like an improvement, being independent of the actual fix. The preferred approach would be: - submit the fix to net - submit the improvement in a separate patch to net-next > Suggested-by: Heiner Kallweit <hkallweit1@...il.com> > Fixes: 0ba78b4a4989 ("net: ethernet: ave: Add suspend/resume support") > Signed-off-by: Kunihiko Hayashi <hayashi.kunihiko@...ionext.com> > --- > drivers/net/ethernet/socionext/sni_ave.c | 8 ++------ > 1 file changed, 2 insertions(+), 6 deletions(-) > > diff --git a/drivers/net/ethernet/socionext/sni_ave.c b/drivers/net/ethernet/socionext/sni_ave.c > index 14cdd2e8373c..b4e0c57af7c3 100644 > --- a/drivers/net/ethernet/socionext/sni_ave.c > +++ b/drivers/net/ethernet/socionext/sni_ave.c > @@ -1271,6 +1271,8 @@ static int ave_init(struct net_device *ndev) > > phy_support_asym_pause(phydev); > > + phydev->mac_managed_pm = true; > + > phy_attached_info(phydev); > > return 0; > @@ -1806,12 +1808,6 @@ static int ave_resume(struct device *dev) > wol.wolopts = priv->wolopts; > __ave_ethtool_set_wol(ndev, &wol); > > - if (ndev->phydev) { > - ret = phy_resume(ndev->phydev); > - if (ret) > - return ret; > - } > - > if (netif_running(ndev)) { > ret = ave_open(ndev); > netif_device_attach(ndev);
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