[LEDE-DEV] [PATCH] b53: allow ports with higher numbers than CPU port

[Rafał Miłecki]

Our code was assuming CPU port uses the highest number. My BCM53573
device has eth0 connected to port 8 and eth1 connected to port 5. While
working on support for it I tried to:
1) Enable all ports (including port 8)
2) Set CPU port to 5

I noticed port 8 is not accessible anymore. It was just a development
process but it seems like something worth fixing anyway.

Signed-off-by: Rafał Miłecki <zajec5 at gmail.com>
---
 target/linux/generic/files/drivers/net/phy/b53/b53_common.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/target/linux/generic/files/drivers/net/phy/b53/b53_common.c b/target/linux/generic/files/drivers/net/phy/b53/b53_common.c
index 676e301..e3d4f60 100644
--- a/target/linux/generic/files/drivers/net/phy/b53/b53_common.c
+++ b/target/linux/generic/files/drivers/net/phy/b53/b53_common.c
@@ -1371,8 +1371,8 @@ static int b53_switch_init(struct b53_device *dev)
 	}
 
 	/* cpu port is always last */
-	sw_dev->ports = sw_dev->cpu_port + 1;
 	dev->enabled_ports |= BIT(sw_dev->cpu_port);
+	sw_dev->ports = fls(dev->enabled_ports);
 
 	dev->ports = devm_kzalloc(dev->dev,
 				  sizeof(struct b53_port) * sw_dev->ports,
-- 
1.8.4.5