[PATCH v4 05/11] net: dsa: microchip: ksz8795: dynamic allocate memory for flush_dyn_mac_table

[Michael Grzeschik]

To get the driver working with other chips using different port counts
the dyn_mac_table should be flushed depending on the amount of physical
ports.

Signed-off-by: Michael Grzeschik <m.grzesc...@pengutronix.de>

---
v1 -> v4: - extracted this change from bigger previous patch

 drivers/net/dsa/microchip/ksz8795.c | 5 +++--
 1 file changed, 3 insertions(+), 2 deletions(-)

diff --git a/drivers/net/dsa/microchip/ksz8795.c 
b/drivers/net/dsa/microchip/ksz8795.c
index 947ea1e45f5b2c6..ba722f730bf0f7b 100644
--- a/drivers/net/dsa/microchip/ksz8795.c
+++ b/drivers/net/dsa/microchip/ksz8795.c
@@ -750,11 +750,11 @@ static void ksz8795_port_stp_state_set(struct dsa_switch 
*ds, int port,
 
 static void ksz8795_flush_dyn_mac_table(struct ksz_device *dev, int port)
 {
-       u8 learn[TOTAL_PORT_NUM];
+       u8 *learn = kzalloc(dev->mib_port_cnt, GFP_KERNEL);
        int first, index, cnt;
        struct ksz_port *p;
 
-       if ((uint)port < TOTAL_PORT_NUM) {
+       if ((uint)port < dev->mib_port_cnt) {
                first = port;
                cnt = port + 1;
        } else {
@@ -779,6 +779,7 @@ static void ksz8795_flush_dyn_mac_table(struct ksz_device 
*dev, int port)
                if (!(learn[index] & PORT_LEARN_DISABLE))
                        ksz_pwrite8(dev, index, P_STP_CTRL, learn[index]);
        }
+       kfree(learn);
 }
 
 static int ksz8795_port_vlan_filtering(struct dsa_switch *ds, int port,
-- 
2.28.0