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From: Michael Grzeschik <m.grzeschik@pengutronix.de>
To: netdev@vger.kernel.org
Cc: andrew@lunn.ch, f.fainelli@gmail.com, davem@davemloft.net,
	kernel@pengutronix.de, matthias.schiffer@ew.tq-group.com,
	woojung.huh@microchip.com, UNGLinuxDriver@microchip.com
Subject: [PATCH 10/11] net: dsa: microchip: ksz8795: dynamic allocate memory for flush_dyn_mac_table
Date: Wed, 18 Nov 2020 23:03:56 +0100	[thread overview]
Message-ID: <20201118220357.22292-11-m.grzeschik@pengutronix.de> (raw)
In-Reply-To: <20201118220357.22292-1-m.grzeschik@pengutronix.de>

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.grzeschik@pengutronix.de>

---
v1: - based on "[PATCH v4 05/11] net: dsa: microchip: ksz8795: dynamica allocate memory for flush_dyn_mac_table"
    - lore: https://lore.kernel.org/netdev/20200803054442.20089-6-m.grzeschik@pengutronix.de/
---
 drivers/net/dsa/microchip/ksz8795.c     | 8 ++++++--
 drivers/net/dsa/microchip/ksz8795_reg.h | 2 --
 2 files changed, 6 insertions(+), 4 deletions(-)

diff --git a/drivers/net/dsa/microchip/ksz8795.c b/drivers/net/dsa/microchip/ksz8795.c
index 9ea5ec61513023f..418f71e5b90761c 100644
--- a/drivers/net/dsa/microchip/ksz8795.c
+++ b/drivers/net/dsa/microchip/ksz8795.c
@@ -750,11 +750,14 @@ 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];
 	int first, index, cnt;
 	struct ksz_port *p;
+	u8 *learn = kzalloc(dev->port_cnt, GFP_KERNEL);
 
-	if ((uint)port < TOTAL_PORT_NUM) {
+	if (!learn)
+		return;
+
+	if ((uint)port < dev->port_cnt) {
 		first = port;
 		cnt = port + 1;
 	} else {
@@ -779,6 +782,7 @@ 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,
diff --git a/drivers/net/dsa/microchip/ksz8795_reg.h b/drivers/net/dsa/microchip/ksz8795_reg.h
index 6377165a236fdf3..681d19ab27b89da 100644
--- a/drivers/net/dsa/microchip/ksz8795_reg.h
+++ b/drivers/net/dsa/microchip/ksz8795_reg.h
@@ -846,8 +846,6 @@
 
 #define KS_PRIO_IN_REG			4
 
-#define TOTAL_PORT_NUM			5
-
 #define KSZ8795_COUNTER_NUM		0x20
 
 /* Common names used by other drivers */
-- 
2.29.2


  parent reply	other threads:[~2020-11-18 22:04 UTC|newest]

Thread overview: 39+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2020-11-18 22:03 [PATCH 00/11] net: dsa: microchip: make ksz8795 driver more dynamic Michael Grzeschik
2020-11-18 22:03 ` [PATCH 01/11] net: dsa: microchip: ksz8795: remove unused last_port variable Michael Grzeschik
2020-11-19  0:05   ` Andrew Lunn
2020-11-19  3:06   ` Florian Fainelli
2020-11-18 22:03 ` [PATCH 02/11] net: dsa: microchip: ksz8795: remove superfluous port_cnt assignment Michael Grzeschik
2020-11-19  0:10   ` Andrew Lunn
2020-11-19  3:07   ` Florian Fainelli
2020-11-18 22:03 ` [PATCH 03/11] net: dsa: microchip: ksz8795: move variable assignments from detect to init Michael Grzeschik
2020-11-19  0:14   ` Andrew Lunn
2020-11-19  3:07   ` Florian Fainelli
2020-11-18 22:03 ` [PATCH 04/11] net: dsa: microchip: ksz8795: use reg_mib_cnt where possible Michael Grzeschik
2020-11-19  0:16   ` Andrew Lunn
2020-11-19  3:08   ` Florian Fainelli
2020-11-18 22:03 ` [PATCH 05/11] net: dsa: microchip: ksz8795: use mib_cnt " Michael Grzeschik
2020-11-19  0:20   ` Andrew Lunn
2020-11-19  7:36     ` Michael Grzeschik
2020-11-19  3:09   ` Florian Fainelli
2020-11-19  7:01   ` kernel test robot
2020-11-18 22:03 ` [PATCH 06/11] net: dsa: microchip: ksz8795: use phy_port_cnt " Michael Grzeschik
2020-11-19  0:29   ` Andrew Lunn
2020-11-19  8:40     ` Michael Grzeschik
2020-11-19 13:59       ` Andrew Lunn
2020-11-19  3:13   ` Florian Fainelli
2020-11-18 22:03 ` [PATCH 07/11] net: dsa: microchip: remove superfluous num_ports asignment Michael Grzeschik
2020-11-19  0:32   ` Andrew Lunn
2020-11-19  3:10   ` Florian Fainelli
2020-11-18 22:03 ` [PATCH 08/11] net: dsa: microchip: ksz8795: align port_cnt usage with other microchip drivers Michael Grzeschik
2020-11-19  0:35   ` Andrew Lunn
2020-11-19 18:06     ` Tristram.Ha
2020-11-19  3:13   ` Florian Fainelli
2020-11-18 22:03 ` [PATCH 09/11] net: dsa: microchip: remove usage of mib_port_count Michael Grzeschik
2020-11-19  1:13   ` Andrew Lunn
2020-11-19  3:12   ` Florian Fainelli
2020-11-18 22:03 ` Michael Grzeschik [this message]
2020-11-19  1:21   ` [PATCH 10/11] net: dsa: microchip: ksz8795: dynamic allocate memory for flush_dyn_mac_table Andrew Lunn
2020-11-19  3:12   ` Florian Fainelli
2020-11-18 22:03 ` [PATCH 11/11] net: dsa: microchip: ksz8795: use num_vlans where possible Michael Grzeschik
2020-11-19  1:22   ` Andrew Lunn
2020-11-19  3:11   ` Florian Fainelli

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