Re: [PATCH 1/2] igc: Wait for MAC passthrough after reset

[Andrew Lunn]

> +static void igc_wait_for_lmvp_mac_passthrough(struct pci_dev *pdev,
> +					      struct igc_hw *hw)
> +{
> +	u8 addr[ETH_ALEN] __aligned(2);
> +	u32 orig_ral, orig_rah;
> +	u32 ral, rah;
> +	int i;
> +
> +	if (!igc_is_lmvp_device(pdev))
> +		return;
> +
> +	igc_read_rar0(hw, addr, &orig_ral, &orig_rah);
> +
> +	for (i = 0; i < 100; i++) {
> +		msleep(100);
> +		igc_read_rar0(hw, addr, &ral, &rah);
> +		if ((ral != orig_ral || rah != orig_rah) &&
> +		    is_valid_ether_addr(addr))
> +			return;
> +	}

Please use one of the helpers from iopoll.h

       Andrew