netdev - [PATCH RFC net-next 10/23] net: phylink: add phylink_link_is

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

Message-Id: <E1tFv3u-005yiF-76@rmk-PC.armlinux.org.uk>
Date: Tue, 26 Nov 2024 12:53:02 +0000
From: "Russell King (Oracle)" <rmk+kernel@...linux.org.uk>
To: Andrew Lunn <andrew@...n.ch>,
	Heiner Kallweit <hkallweit1@...il.com>
Cc: Alexandre Torgue <alexandre.torgue@...s.st.com>,
	Andrew Lunn <andrew+netdev@...n.ch>,
	Bryan Whitehead <bryan.whitehead@...rochip.com>,
	"David S. Miller" <davem@...emloft.net>,
	Eric Dumazet <edumazet@...gle.com>,
	Florian Fainelli <florian.fainelli@...adcom.com>,
	Jakub Kicinski <kuba@...nel.org>,
	Jose Abreu <joabreu@...opsys.com>,
	linux-arm-kernel@...ts.infradead.org,
	linux-stm32@...md-mailman.stormreply.com,
	Marcin Wojtas <marcin.s.wojtas@...il.com>,
	Maxime Coquelin <mcoquelin.stm32@...il.com>,
	netdev@...r.kernel.org,
	Oleksij Rempel <o.rempel@...gutronix.de>,
	Paolo Abeni <pabeni@...hat.com>,
	UNGLinuxDriver@...rochip.com
Subject: [PATCH RFC net-next 10/23] net: phylink: add phylink_link_is_up()
 helper

Add a helper to determine whether the link is up or down. Currently
this is only used in one location, but becomes necessary to test
when reconfiguring EEE.

Signed-off-by: Russell King (Oracle) <rmk+kernel@...linux.org.uk>
---
 drivers/net/phy/phylink.c | 11 ++++++-----
 1 file changed, 6 insertions(+), 5 deletions(-)

diff --git a/drivers/net/phy/phylink.c b/drivers/net/phy/phylink.c
index 30a654e98352..1d68809403de 100644
--- a/drivers/net/phy/phylink.c
+++ b/drivers/net/phy/phylink.c
@@ -1442,20 +1442,21 @@ static void phylink_link_down(struct phylink *pl)
 	phylink_info(pl, "Link is Down\n");
 }
 
+static bool phylink_link_is_up(struct phylink *pl)
+{
+	return pl->netdev ? netif_carrier_ok(pl->netdev) : pl->old_link_state;
+}
+
 static void phylink_resolve(struct work_struct *w)
 {
 	struct phylink *pl = container_of(w, struct phylink, resolve);
 	struct phylink_link_state link_state;
-	struct net_device *ndev = pl->netdev;
 	bool mac_config = false;
 	bool retrigger = false;
 	bool cur_link_state;
 
 	mutex_lock(&pl->state_mutex);
-	if (pl->netdev)
-		cur_link_state = netif_carrier_ok(ndev);
-	else
-		cur_link_state = pl->old_link_state;
+	cur_link_state = phylink_link_is_up(pl);
 
 	if (pl->phylink_disable_state) {
 		pl->link_failed = false;
-- 
2.30.2