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 commitdc0fe7d47f
. Remove the unnecessary reservation. Fixes:d51b6ce441
("net: ethernet: add ag71xx driver") Signed-off-by: DENG Qingfang <dqfext@gmail.com> Reviewed-by: Oleksij Rempel <o.rempel@pengutronix.de> Link: https://lore.kernel.org/r/20210218034514.3421-1-dqfext@gmail.com Signed-off-by: Jakub Kicinski <kuba@kernel.org>
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@ -223,8 +223,6 @@
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#define AG71XX_REG_RX_SM 0x01b0
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#define AG71XX_REG_TX_SM 0x01b4
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#define ETH_SWITCH_HEADER_LEN 2
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#define AG71XX_DEFAULT_MSG_ENABLE \
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(NETIF_MSG_DRV \
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| NETIF_MSG_PROBE \
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@ -933,7 +931,7 @@ static void ag71xx_hw_setup(struct ag71xx *ag)
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static unsigned int ag71xx_max_frame_len(unsigned int mtu)
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{
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return ETH_SWITCH_HEADER_LEN + ETH_HLEN + VLAN_HLEN + mtu + ETH_FCS_LEN;
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return ETH_HLEN + VLAN_HLEN + mtu + ETH_FCS_LEN;
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}
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static void ag71xx_hw_set_macaddr(struct ag71xx *ag, unsigned char *mac)
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