Commit 04b385f3 authored by DENG Qingfang's avatar DENG Qingfang Committed by Jakub Kicinski
Browse files

net: ag71xx: remove unnecessary MTU reservation 



2 bytes of the MTU are reserved for Atheros DSA tag, but DSA core
has already handled that since commit dc0fe7d4.
Remove the unnecessary reservation.

Fixes: d51b6ce4 ("net: ethernet: add ag71xx driver")
Signed-off-by: default avatarDENG Qingfang <dqfext@gmail.com>
Reviewed-by: default avatarOleksij Rempel <o.rempel@pengutronix.de>
Link: https://lore.kernel.org/r/20210218034514.3421-1-dqfext@gmail.com


Signed-off-by: default avatarJakub Kicinski <kuba@kernel.org>
parent 3a2eb515

drivers/net/ethernet/atheros/ag71xx.c

+1 −3
Original line number Diff line number Diff line
@@ -223,8 +223,6 @@ 
#define AG71XX_REG_RX_SM	0x01b0

#define AG71XX_REG_TX_SM	0x01b4



#define ETH_SWITCH_HEADER_LEN	2



#define AG71XX_DEFAULT_MSG_ENABLE	\

	(NETIF_MSG_DRV			\

	| NETIF_MSG_PROBE		\
@@ -933,7 +931,7 @@ static void ag71xx_hw_setup(struct ag71xx *ag) 


static unsigned int ag71xx_max_frame_len(unsigned int mtu)

{

	return ETH_SWITCH_HEADER_LEN + ETH_HLEN + VLAN_HLEN + mtu + ETH_FCS_LEN;

	return ETH_HLEN + VLAN_HLEN + mtu + ETH_FCS_LEN;

}



static void ag71xx_hw_set_macaddr(struct ag71xx *ag, unsigned char *mac)