[PATCH 5.10 006/145] net: systemport: set dev->max_mtu to UMAC_MAX_MTU_SIZE

[Greg Kroah-Hartman]

From: Florian Fainelli <f.faine...@gmail.com>

[ Upstream commit 54ddbdb024882e226055cc4c3c246592ddde2ee5 ]

The driver is already allocating receive buffers of 2KiB and the
Ethernet MAC is configured to accept frames up to UMAC_MAX_MTU_SIZE.

Fixes: bfcb813203e6 ("net: dsa: configure the MTU for switch ports")
Signed-off-by: Florian Fainelli <f.faine...@gmail.com>
Reviewed-by: Vladimir Oltean <olte...@gmail.com>
Link: https://lore.kernel.org/r/20201218173843.141046-1-f.faine...@gmail.com
Signed-off-by: Jakub Kicinski <k...@kernel.org>
Signed-off-by: Greg Kroah-Hartman <gre...@linuxfoundation.org>
---
 drivers/net/ethernet/broadcom/bcmsysport.c |    1 +
 1 file changed, 1 insertion(+)

--- a/drivers/net/ethernet/broadcom/bcmsysport.c
+++ b/drivers/net/ethernet/broadcom/bcmsysport.c
@@ -2577,6 +2577,7 @@ static int bcm_sysport_probe(struct plat
                         NETIF_F_HW_VLAN_CTAG_TX;
        dev->hw_features |= dev->features;
        dev->vlan_features |= dev->features;
+       dev->max_mtu = UMAC_MAX_MTU_SIZE;
 
        /* Request the WOL interrupt and advertise suspend if available */
        priv->wol_irq_disabled = 1;