[PATCH net-next] net: dsa: felix: Don't error out on disabled ports with no phy-mode

[PATCH net-next] net: dsa: felix: Don't error out on disabled ports with no phy-mode

[Vladimir Oltean]

From: Vladimir Oltean <vladimir.oltean@nxp.com>

The felix_parse_ports_node function was tested only on device trees
where all ports were enabled. Fix this check so that the driver
continues to probe only with the ports where status is not "disabled",
as expected.

Fixes: bdeced75b13f ("net: dsa: felix: Add PCS operations for PHYLINK")
Signed-off-by: Vladimir Oltean <vladimir.oltean@nxp.com>
---
 drivers/net/dsa/ocelot/felix.c | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/drivers/net/dsa/ocelot/felix.c b/drivers/net/dsa/ocelot/felix.c
index feccb6201660..d6ee089dbfe1 100644
--- a/drivers/net/dsa/ocelot/felix.c
+++ b/drivers/net/dsa/ocelot/felix.c
@@ -328,6 +328,9 @@ static int felix_parse_ports_node(struct felix *felix,
 		u32 port;
 		int err;
 
+		if (!of_device_is_available(child))
+			continue;
+
 		/* Get switch port number from DT */
 		if (of_property_read_u32(child, "reg", &port) < 0) {
 			dev_err(dev, "Port number not defined in device tree "
-- 
2.17.1

Re: [PATCH net-next] net: dsa: felix: Don't error out on disabled ports with no phy-mode

[Andrew Lunn]

On Thu, Jan 16, 2020 at 08:34:49PM +0200, Vladimir Oltean wrote:
> From: Vladimir Oltean <vladimir.oltean@nxp.com>
> 
> The felix_parse_ports_node function was tested only on device trees
> where all ports were enabled. Fix this check so that the driver
> continues to probe only with the ports where status is not "disabled",
> as expected.
> 
> Fixes: bdeced75b13f ("net: dsa: felix: Add PCS operations for PHYLINK")
> Signed-off-by: Vladimir Oltean <vladimir.oltean@nxp.com>
> ---
>  drivers/net/dsa/ocelot/felix.c | 3 +++
>  1 file changed, 3 insertions(+)
> 
> diff --git a/drivers/net/dsa/ocelot/felix.c b/drivers/net/dsa/ocelot/felix.c
> index feccb6201660..d6ee089dbfe1 100644
> --- a/drivers/net/dsa/ocelot/felix.c
> +++ b/drivers/net/dsa/ocelot/felix.c
> @@ -328,6 +328,9 @@ static int felix_parse_ports_node(struct felix *felix,
>  		u32 port;
>  		int err;
>  
> +		if (!of_device_is_available(child))
> +			continue;
> +

Hi Vladimir

for_each_available_child_of_node() is i think a better fix.

	   Andrew