Re: [PATCH net] net: stmmac: enable the MAC on link up at 10G on 10GBASE-R

[Andrew Lunn <andrew@lunn.ch>]

> I suggest that instead of this fix (that is ommiting the 5G case btw), we rewrite
> the whole ctrl assignment as :
> 
> 	switch (speed) {
> 	case SPEED_100000:
> 		ctrl |= priv->hw->link.xlgmii.speed100000;
> 		break;
> 	case SPEED_50000:
> 		ctrl |= priv->hw->link.xlgmii.speed50000;
> 		break;
> 	case SPEED_40000:
> 		ctrl |= priv->hw->link.xlgmii.speed40000;
> 		break;
> 	case SPEED_25000:
> 		ctrl |= priv->hw->link.xlgmii.speed25000;
> 		break;
> 	case SPEED_10000:
> 		ctrl |= priv->hw->link.xgmii.speed10000;
> 		break;
> 	case SPEED_5000:
> 		ctrl |= priv->hw->link.xgmii.speed5000;
> 		break;
> 	case SPEED_2500:
> 		if (interface == PHY_INTERFACE_MODE_USXGMII)
> 			ctrl |= priv->hw->link.xgmii.speed2500;
> 		else
> 			ctrl |= priv->hw->link.speed2500;
> 		break;
> 	case SPEED_1000:
> 		ctrl |= priv->hw->link.speed1000;
> 	case SPEED_100:
> 		ctrl |= priv->hw->link.speed100;
> 		break;
> 	case SPEED_10:
> 		ctrl |= priv->hw->link.speed10;
> 		break;
> 	default:
> 		return;
> 	}

The bug description makes it sound like it was not obvious to
debug. So maybe put an error message in the default: to aid the next
developer who hits it with SPEED_14000, or whatever comes next.

	  Andrew