linux-kernel - [PATCH net] net: ethernet: ave: Remove duplicate suspend/resume calls for phy

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-next>] [day] [month] [year] [list]

Date:   Sat, 22 Oct 2022 02:45:52 +0900
From:   Kunihiko Hayashi <hayashi.kunihiko@...ionext.com>
To:     Andrew Lunn <andrew@...n.ch>,
        Heiner Kallweit <hkallweit1@...il.com>,
        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,
        Kunihiko Hayashi <hayashi.kunihiko@...ionext.com>
Subject: [PATCH net] net: ethernet: ave: Remove duplicate suspend/resume calls for phy

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.

In addition, ave_open() executes __phy_resume() via phy_start() in
ave_resume(), so no need to call phy_resume() explicitly. Remove it.

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);
-- 
2.25.1