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From: Sascha Hauer <s.hauer@pengutronix.de>
To: barebox@lists.infradead.org
Subject: [PATCH 1/2] mdiobus: return existing phydev in mdiobus_scan
Date: Tue, 30 Oct 2012 17:32:36 +0100	[thread overview]
Message-ID: <1351614757-20520-2-git-send-email-s.hauer@pengutronix.de> (raw)
In-Reply-To: <1351614757-20520-1-git-send-email-s.hauer@pengutronix.de>

Test if we already found a phy device on an address earlier and return
it if it exists. This makes it possible to call mdiobus_scan multiple
times.

Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
---
 drivers/net/phy/mdio_bus.c |    3 +++
 1 file changed, 3 insertions(+)

diff --git a/drivers/net/phy/mdio_bus.c b/drivers/net/phy/mdio_bus.c
index b49f714..5025e3f 100644
--- a/drivers/net/phy/mdio_bus.c
+++ b/drivers/net/phy/mdio_bus.c
@@ -101,6 +101,9 @@ struct phy_device *mdiobus_scan(struct mii_bus *bus, int addr)
 {
 	struct phy_device *phydev;
 
+	if (bus->phy_map[addr])
+		return bus->phy_map[addr];
+
 	phydev = get_phy_device(bus, addr);
 	if (IS_ERR(phydev) || phydev == NULL)
 		return phydev;
-- 
1.7.10.4


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  reply	other threads:[~2012-10-30 16:32 UTC|newest]

Thread overview: 3+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2012-10-30 16:32 [PATCH] phylib delayed scan Sascha Hauer
2012-10-30 16:32 ` Sascha Hauer [this message]
2012-10-30 16:32 ` [PATCH 2/2] mdiobus: do not scan the bus at registration time Sascha Hauer

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