Subject: Re: [PATCH] Added SIOCSMIIREG (mii write) support to intel igb driver

From: Jeff Kirsher <[email-masked]>
Date: Mon, 26 Jun 2017 14:11:52 -0700

On Thu, 2017-06-22 at 15:23 +0200, Michael Moese wrote:
> From: Andreas Werner <[email-masked]>
> 
> Signed-off-by: Andreas Werner <[email-masked]>
> ---
>  drivers/net/ethernet/intel/igb/igb_main.c | 4 ++++
>  1 file changed, 4 insertions(+)

NACK

Why?  Your lack of patch description does not provide a reasoning on why we
need this change.  I need a patch description that provides justification
on why we need this change, before I add this to my queue for testing and
acceptance upstream.

Please resubmit with the requested information/change.

> 
> diff --git a/drivers/net/ethernet/intel/igb/igb_main.c
> b/drivers/net/ethernet/intel/igb/igb_main.c
> index 1cf74aa4ebd9..87e496eeefb1 100644
> --- a/drivers/net/ethernet/intel/igb/igb_main.c
> +++ b/drivers/net/ethernet/intel/igb/igb_main.c
> @@ -7716,6 +7716,10 @@ static int igb_mii_ioctl(struct net_device
> *netdev, struct ifreq *ifr, int cmd)
>  			return -EIO;
>  		break;
>  	case SIOCSMIIREG:
> +		if (igb_write_phy_reg(&adapter->hw, data->reg_num &
> 0x1F,
> +				      data->val_in))
> +			return -EIO;
> +		break;
>  	default:
>  		return -EOPNOTSUPP;
>  	}