netdev - [PATCH net-next 3/5 v3] net: gemini: Allow multiple ports to instantiate

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Date:   Wed, 11 Jul 2018 21:32:43 +0200
From:   Linus Walleij <linus.walleij@...aro.org>
To:     netdev@...r.kernel.org, "David S . Miller" <davem@...emloft.net>
Cc:     Hans Ulli Kroll <ulli.kroll@...glemail.com>,
        Florian Fainelli <f.fainelli@...il.com>,
        Michał Mirosław <mirq-linux@...e.qmqm.pl>,
        Andrew Lunn <andrew@...n.ch>,
        Linus Walleij <linus.walleij@...aro.org>
Subject: [PATCH net-next 3/5 v3] net: gemini: Allow multiple ports to instantiate

The code was not tested with two ports actually in use at
the same time. (I blame this on lack of actual hardware using
that feature.) Now after locating a system using both ports,
add necessary fix to make both ports come up.

Signed-off-by: Linus Walleij <linus.walleij@...aro.org>
---
ChangeLog v2->v3:
- No changes, just resending with the rest.
ChangeLog v1->v2:
- No changes, just resending with the rest.
---
 drivers/net/ethernet/cortina/gemini.c | 5 ++++-
 1 file changed, 4 insertions(+), 1 deletion(-)

diff --git a/drivers/net/ethernet/cortina/gemini.c b/drivers/net/ethernet/cortina/gemini.c
index f0ab6426daca..2457a1239d69 100644
--- a/drivers/net/ethernet/cortina/gemini.c
+++ b/drivers/net/ethernet/cortina/gemini.c
@@ -1789,7 +1789,10 @@ static int gmac_open(struct net_device *netdev)
 	phy_start(netdev->phydev);
 
 	err = geth_resize_freeq(port);
-	if (err) {
+	/* It's fine if it's just busy, the other port has set up
+	 * the freeq in that case.
+	 */
+	if (err && (err != -EBUSY)) {
 		netdev_err(netdev, "could not resize freeq\n");
 		goto err_stop_phy;
 	}
-- 
2.17.1