Re: [PATCH net] net: ag71xx: remove unnecessary MTU reservation
From: Oleksij Rempel <o.rempel@pengutronix.de>
Date: 2021-02-18 05:33:17
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On Thu, Feb 18, 2021 at 11:45:14AM +0800, DENG Qingfang wrote:
2 bytes of the MTU are reserved for Atheros DSA tag, but DSA core
has already handled that since commit dc0fe7d47f9f.
Remove the unnecessary reservation.
Fixes: d51b6ce441d3 ("net: ethernet: add ag71xx driver")
Signed-off-by: DENG Qingfang <dqfext@gmail.com>Reviewed-by: Oleksij Rempel <o.rempel@pengutronix.de> Thank you!
quoted hunk ↗ jump to hunk
--- drivers/net/ethernet/atheros/ag71xx.c | 4 +--- 1 file changed, 1 insertion(+), 3 deletions(-)diff --git a/drivers/net/ethernet/atheros/ag71xx.c b/drivers/net/ethernet/atheros/ag71xx.c index dd5c8a9038bb..a60ce9030581 100644 --- a/drivers/net/ethernet/atheros/ag71xx.c +++ b/drivers/net/ethernet/atheros/ag71xx.c@@ -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)-- 2.25.1
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