netdev - [PATCH net-next 2/5] net: dsa: loop: Support 4K VLANs

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Date:   Mon,  3 Aug 2020 13:03:51 -0700
From:   Florian Fainelli <f.fainelli@...il.com>
To:     netdev@...r.kernel.org
Cc:     Florian Fainelli <f.fainelli@...il.com>,
        Andrew Lunn <andrew@...n.ch>,
        Vivien Didelot <vivien.didelot@...il.com>,
        "David S. Miller" <davem@...emloft.net>,
        Jakub Kicinski <kuba@...nel.org>
Subject: [PATCH net-next 2/5] net: dsa: loop: Support 4K VLANs

Allocate a 4K array of VLANs instead of limiting ourselves to just 5
which is arbitrary.

Signed-off-by: Florian Fainelli <f.fainelli@...il.com>
---
 drivers/net/dsa/dsa_loop.c | 6 ++----
 1 file changed, 2 insertions(+), 4 deletions(-)

diff --git a/drivers/net/dsa/dsa_loop.c b/drivers/net/dsa/dsa_loop.c
index 4a57238cdfd8..6e97b44c6f3f 100644
--- a/drivers/net/dsa/dsa_loop.c
+++ b/drivers/net/dsa/dsa_loop.c
@@ -48,12 +48,10 @@ struct dsa_loop_port {
 	u16 pvid;
 };
 
-#define DSA_LOOP_VLANS	5
-
 struct dsa_loop_priv {
 	struct mii_bus	*bus;
 	unsigned int	port_base;
-	struct dsa_loop_vlan vlans[DSA_LOOP_VLANS];
+	struct dsa_loop_vlan vlans[VLAN_N_VID];
 	struct net_device *netdev;
 	struct dsa_loop_port ports[DSA_MAX_PORTS];
 };
@@ -191,7 +189,7 @@ dsa_loop_port_vlan_prepare(struct dsa_switch *ds, int port,
 	/* Just do a sleeping operation to make lockdep checks effective */
 	mdiobus_read(bus, ps->port_base + port, MII_BMSR);
 
-	if (vlan->vid_end > DSA_LOOP_VLANS)
+	if (vlan->vid_end > ARRAY_SIZE(ps->vlans))
 		return -ERANGE;
 
 	return 0;
-- 
2.25.1