2024-02-23 21:02:52

by Pawel Dembicki

Subject: [PATCH net-next v5 04/16] net: dsa: vsc73xx: Add define for max num of ports

This patch introduces a new define: VSC73XX_MAX_NUM_PORTS, which can be
used in the future instead of a hardcoded value.

Currently, the only hardcoded value is vsc->ds->num_ports. It is being
replaced with the new define.

Suggested-by: Vladimir Oltean <[email protected]>
Signed-off-by: Pawel Dembicki <[email protected]>
Reviewed-by: Vladimir Oltean <[email protected]>
---
v5:
- added 'Reviewed-by' only
v4:
- Resend patch
v3:
- Introduce patch

drivers/net/dsa/vitesse-vsc73xx-core.c | 13 +------------
drivers/net/dsa/vitesse-vsc73xx.h | 11 +++++++++++
2 files changed, 12 insertions(+), 12 deletions(-)

diff --git a/drivers/net/dsa/vitesse-vsc73xx-core.c b/drivers/net/dsa/vitesse-vsc73xx-core.c
index 8ed8fc997d6d..425999d7bf41 100644
--- a/drivers/net/dsa/vitesse-vsc73xx-core.c
+++ b/drivers/net/dsa/vitesse-vsc73xx-core.c
@@ -1180,23 +1180,12 @@ int vsc73xx_probe(struct vsc73xx *vsc)
vsc->addr[0], vsc->addr[1], vsc->addr[2],
vsc->addr[3], vsc->addr[4], vsc->addr[5]);

- /* The VSC7395 switch chips have 5+1 ports which means 5
- * ordinary ports and a sixth CPU port facing the processor
- * with an RGMII interface. These ports are numbered 0..4
- * and 6, so they leave a "hole" in the port map for port 5,
- * which is invalid.
- *
- * The VSC7398 has 8 ports, port 7 is again the CPU port.
- *
- * We allocate 8 ports and avoid access to the nonexistant
- * ports.
- */
vsc->ds = devm_kzalloc(dev, sizeof(*vsc->ds), GFP_KERNEL);
if (!vsc->ds)
return -ENOMEM;

vsc->ds->dev = dev;
- vsc->ds->num_ports = 8;
+ vsc->ds->num_ports = VSC73XX_MAX_NUM_PORTS;
vsc->ds->priv = vsc;

vsc->ds->ops = &vsc73xx_ds_ops;
diff --git a/drivers/net/dsa/vitesse-vsc73xx.h b/drivers/net/dsa/vitesse-vsc73xx.h
index 30b1f0a36566..fee1378508b5 100644
--- a/drivers/net/dsa/vitesse-vsc73xx.h
+++ b/drivers/net/dsa/vitesse-vsc73xx.h
@@ -3,6 +3,17 @@
#include <linux/etherdevice.h>
#include <linux/gpio/driver.h>

+/* The VSC7395 switch chips have 5+1 ports which means 5 ordinary ports and
+ * a sixth CPU port facing the processor with an RGMII interface. These ports
+ * are numbered 0..4 and 6, so they leave a "hole" in the port map for port 5,
+ * which is invalid.
+ *
+ * The VSC7398 has 8 ports, port 7 is again the CPU port.
+ *
+ * We allocate 8 ports and avoid access to the nonexistent ports.
+ */
+#define VSC73XX_MAX_NUM_PORTS 8
+
/**
* struct vsc73xx - VSC73xx state container
*/
--
2.34.1

2024-02-23 22:51:02

by Linus Walleij

Subject: Re: [PATCH net-next v5 04/16] net: dsa: vsc73xx: Add define for max num of ports

On Fri, Feb 23, 2024 at 10:02 PM Pawel Dembicki <[email protected]> wrote:

> This patch introduces a new define: VSC73XX_MAX_NUM_PORTS, which can be
> used in the future instead of a hardcoded value.
>
> Currently, the only hardcoded value is vsc->ds->num_ports. It is being
> replaced with the new define.
>
> Suggested-by: Vladimir Oltean <[email protected]>
> Signed-off-by: Pawel Dembicki <[email protected]>
> Reviewed-by: Vladimir Oltean <[email protected]>

Reviewed-by: Linus Walleij <[email protected]>

Yours,
Linus Walleij