diff mbox series

[v2,3/7] net: macb: fix macb_get/set_wol() when moving to phylink

Message ID 77a2227ac02b432f42ed454e1ad94e15863ae2ff.1587463802.git.nicolas.ferre@microchip.com (mailing list archive)
State New, archived
Headers show
Series net: macb: Wake-on-Lan magic packet fixes and GEM handling | expand

Commit Message

Nicolas Ferre April 21, 2020, 10:41 a.m. UTC 
From: Nicolas Ferre <nicolas.ferre@microchip.com>

Keep previous function goals and integrate phylink actions to them.

phylink_ethtool_get_wol() is not enough to figure out if Ethernet driver
supports Wake-on-Lan.
Initialization of "supported" and "wolopts" members is done in phylink
function, no need to keep them in calling function.

phylink_ethtool_set_wol() return value is not enough to determine
if WoL is enabled for the calling Ethernet driver. Call it first
but don't rely on its return value as most of simple PHY drivers
don't implement a set_wol() function.

Fixes: 7897b071ac3b ("net: macb: convert to phylink")
Cc: Claudiu Beznea <claudiu.beznea@microchip.com>
Cc: Harini Katakam <harini.katakam@xilinx.com>
Cc: Antoine Tenart <antoine.tenart@bootlin.com>
Reviewed-by: Florian Fainelli <f.fainelli@gmail.com>
Signed-off-by: Nicolas Ferre <nicolas.ferre@microchip.com>
---
 drivers/net/ethernet/cadence/macb_main.c | 18 ++++++++++--------
 1 file changed, 10 insertions(+), 8 deletions(-)
diff mbox series

Patch

diff --git a/drivers/net/ethernet/cadence/macb_main.c b/drivers/net/ethernet/cadence/macb_main.c
index 629660d9f17e..b17a33c60cd4 100644
--- a/drivers/net/ethernet/cadence/macb_main.c
+++ b/drivers/net/ethernet/cadence/macb_main.c
@@ -2813,21 +2813,23 @@  static void macb_get_wol(struct net_device *netdev, struct ethtool_wolinfo *wol)
 {
 	struct macb *bp = netdev_priv(netdev);
 
-	wol->supported = 0;
-	wol->wolopts = 0;
-
-	if (bp->wol & MACB_WOL_HAS_MAGIC_PACKET)
+	if (bp->wol & MACB_WOL_HAS_MAGIC_PACKET) {
 		phylink_ethtool_get_wol(bp->phylink, wol);
+		wol->supported |= WAKE_MAGIC;
+
+		if (bp->wol & MACB_WOL_ENABLED)
+			wol->wolopts |= WAKE_MAGIC;
+	}
 }
 
 static int macb_set_wol(struct net_device *netdev, struct ethtool_wolinfo *wol)
 {
 	struct macb *bp = netdev_priv(netdev);
-	int ret;
 
-	ret = phylink_ethtool_set_wol(bp->phylink, wol);
-	if (!ret)
-		return 0;
+	/* Pass the order to phylink layer.
+	 * Don't test return value as set_wol() is often not supported.
+	 */
+	phylink_ethtool_set_wol(bp->phylink, wol);
 
 	if (!(bp->wol & MACB_WOL_HAS_MAGIC_PACKET) ||
 	    (wol->wolopts & ~WAKE_MAGIC))