From: Geert Uytterhoeven <geert+renesas@glider.be>
To: Sergey Shtylyov <s.shtylyov@omp.ru>,
"David S . Miller" <davem@davemloft.net>,
Eric Dumazet <edumazet@google.com>,
Jakub Kicinski <kuba@kernel.org>, Paolo Abeni <pabeni@redhat.com>,
Heiner Kallweit <hkallweit1@gmail.com>,
Florian Fainelli <f.fainelli@gmail.com>
Cc: netdev@vger.kernel.org, linux-renesas-soc@vger.kernel.org,
linux-kernel@vger.kernel.org,
Geert Uytterhoeven <geert+renesas@glider.be>
Subject: [PATCH] net: ravb: Fix PHY state warning splat during system resume
Date: Mon, 19 Sep 2022 16:48:00 +0200 [thread overview]
Message-ID: <8ec796f47620980fdd0403e21bd8b7200b4fa1d4.1663598796.git.geert+renesas@glider.be> (raw)
Since commit 744d23c71af39c7d ("net: phy: Warn about incorrect
mdio_bus_phy_resume() state"), a warning splat is printed during system
resume with Wake-on-LAN disabled:
WARNING: CPU: 0 PID: 1197 at drivers/net/phy/phy_device.c:323 mdio_bus_phy_resume+0xbc/0xc8
As the Renesas Ethernet AVB driver already calls phy_{stop,start}() in
its suspend/resume callbacks, it is sufficient to just mark the MAC
responsible for managing the power state of the PHY.
Fixes: fba863b816049b03 ("net: phy: make PHY PM ops a no-op if MAC driver manages PHY PM")
Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be>
---
drivers/net/ethernet/renesas/ravb_main.c | 2 ++
1 file changed, 2 insertions(+)
diff --git a/drivers/net/ethernet/renesas/ravb_main.c b/drivers/net/ethernet/renesas/ravb_main.c
index d013cc1c8a0ad007..abe6f570fe102636 100644
--- a/drivers/net/ethernet/renesas/ravb_main.c
+++ b/drivers/net/ethernet/renesas/ravb_main.c
@@ -1449,6 +1449,8 @@ static int ravb_phy_init(struct net_device *ndev)
phy_remove_link_mode(phydev, ETHTOOL_LINK_MODE_100baseT_Half_BIT);
}
+ /* Indicate that the MAC is responsible for managing PHY PM */
+ phydev->mac_managed_pm = true;
phy_attached_info(phydev);
return 0;
--
2.25.1
next reply other threads:[~2022-09-19 14:48 UTC|newest]
Thread overview: 7+ messages / expand[flat|nested] mbox.gz Atom feed top
2022-09-19 14:48 Geert Uytterhoeven [this message]
2022-09-19 16:55 ` [PATCH] net: ravb: Fix PHY state warning splat during system resume Florian Fainelli
2022-09-19 18:40 ` Sergey Shtylyov
2022-09-20 7:07 ` Geert Uytterhoeven
2022-09-20 12:43 ` Sergey Shtylyov
2022-09-19 18:41 ` Sergey Shtylyov
2022-09-21 0:10 ` patchwork-bot+netdevbpf
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