[U-Boot] [u-boot PATCH v4 04/10] ti: common: board_detect: commodify ethaddr environment setting code

[Felipe Balbi <felipe.balbi@linux.intel.com>]

Hi,

Roger Quadros <rogerq@ti.com> writes:
> +void board_ti_set_ethaddr(int index)
> +{
> +	uint8_t mac_addr[6];
> +	int i;
> +	u64 mac1, mac2;
> +	u8 mac_addr1[6], mac_addr2[6];
> +	int num_macs;
> +	/*
> +	 * Export any Ethernet MAC addresses from EEPROM.
> +	 * The 2 MAC addresses in EEPROM define the address range.
> +	 */
> +	board_ti_get_eth_mac_addr(0, mac_addr1);
> +	board_ti_get_eth_mac_addr(1, mac_addr2);
> +
> +	if (is_valid_ethaddr(mac_addr1) && is_valid_ethaddr(mac_addr2)) {
> +		mac1 = mac_to_u64(mac_addr1);
> +		mac2 = mac_to_u64(mac_addr2);
> +
> +		/* must contain an address range */
> +		num_macs = mac2 - mac1 + 1;
> +		/* <= 50 to protect against user programming error */
> +		if (num_macs > 0 && num_macs <= 50) {

if user programs a range > 50, then you do nothing. How about allowing
up to 50 addresses?

Something like:

	if (num_macs < 0)
        	bail_out();

	if (num_macs > 50) {
		printf("Too many addresses. %d > 50\n", num_macs);
                num_macs = 50;
	}

this also mean you can reduce indentation level for the for loop.

-- 
balbi
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