diff mbox series

[net] net: ag71xx: remove unnecessary MTU reservation

Message ID 20210218034514.3421-1-dqfext@gmail.com (mailing list archive)
State Accepted
Commit 04b385f325080157ab1b5f8ce1b1de07ce0d9e27
Delegated to: Netdev Maintainers
Headers show
Series [net] net: ag71xx: remove unnecessary MTU reservation | expand

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netdev/source_inline success Was 0 now: 0
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netdev/module_param success Was 0 now: 0
netdev/build_32bit success Errors and warnings before: 0 this patch: 0
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netdev/checkpatch success total: 0 errors, 0 warnings, 0 checks, 16 lines checked
netdev/build_allmodconfig_warn success Errors and warnings before: 0 this patch: 0
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netdev/stable success Stable not CCed

Commit Message

Qingfang Deng Feb. 18, 2021, 3:45 a.m. UTC
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>
---
 drivers/net/ethernet/atheros/ag71xx.c | 4 +---
 1 file changed, 1 insertion(+), 3 deletions(-)

Comments

Oleksij Rempel Feb. 18, 2021, 5:28 a.m. UTC | #1
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!

> ---
>  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
> 
>
patchwork-bot+netdevbpf@kernel.org Feb. 23, 2021, 1:50 a.m. UTC | #2
Hello:

This patch was applied to netdev/net.git (refs/heads/master):

On Thu, 18 Feb 2021 11:45:14 +0800 you 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>
> 
> [...]

Here is the summary with links:
  - [net] net: ag71xx: remove unnecessary MTU reservation
    https://git.kernel.org/netdev/net/c/04b385f32508

You are awesome, thank you!
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diff mbox series

Patch

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)