RE: [PATCH v6 net-next 3/6] net: fec: update MAX_FL based on the current MTU

[Wei Fang]

> Configure the MAX_FL (Maximum Frame Length) register according to the
> current MTU value, which ensures that packets exceeding the configured MTU
> trigger an RX error.
> 
> Signed-off-by: Shenwei Wang <shenwei.wang@xxxxxxx>
> ---
>  drivers/net/ethernet/freescale/fec_main.c | 3 +--
>  1 file changed, 1 insertion(+), 2 deletions(-)
> 
> diff --git a/drivers/net/ethernet/freescale/fec_main.c
> b/drivers/net/ethernet/freescale/fec_main.c
> index 642e19187128..5b71c4cf86bc 100644
> --- a/drivers/net/ethernet/freescale/fec_main.c
> +++ b/drivers/net/ethernet/freescale/fec_main.c
> @@ -1147,9 +1147,8 @@ fec_restart(struct net_device *ndev)
>  	u32 ecntl = FEC_ECR_ETHEREN;
> 
>  #ifdef OPT_ARCH_HAS_MAX_FL
> -	rcntl |= fep->max_buf_size << 16;
> +	rcntl |= (fep->netdev->mtu + ETH_HLEN + ETH_FCS_LEN) << 16;
>  #endif
> -
>  	if (fep->bufdesc_ex)
>  		fec_ptp_save_state(fep);
> 
> --
> 2.43.0

Reviewed-by: Wei Fang <wei.fang@xxxxxxx>