linux-kernel - Re: [PATCH] Add iSCSI IBFT support (v0.4.5)

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Date:	Tue, 29 Jan 2008 13:15:15 -0600
From:	Mike Christie <michaelc@...wisc.edu>
To:	Konrad Rzeszutek <konrad@...nok.org>
CC:	Andrew Morton <akpm@...ux-foundation.org>,
	linux-kernel@...r.kernel.org, Greg KH <greg@...ah.com>,
	dwm@...yolf.org, darnok@....org, pjones@...hat.com,
	konradr@...hat.com, konradr@...ux.vnet.ibm.com,
	randy.dunlap@...cle.com, hpa@...or.com, lenb@...nel.org,
	mike.anderson@...ibm.com, dwm@...tin.ibm.com, arjan@...radead.org,
	Andy Whitcroft <apw@...dowen.org>,
	James.Bottomley@...senpartnership.com
Subject: Re: [PATCH] Add iSCSI IBFT support (v0.4.5) - fixes to the header
 files.

Konrad Rzeszutek wrote:
> +/*
> + * Helper functions to parse data properly.
> + */
> +static ssize_t sprintf_ipaddr(char *buf, u8 *ip)
> +{
> +	if (ip[0] == 0 && ip[1] == 0 && ip[2] == 0 && ip[3] == 0 &&
> +	    ip[4] == 0 && ip[5] == 0 && ip[6] == 0 && ip[7] == 0 &&
> +	    ip[8] == 0 && ip[9] == 0 && ip[10] == 0xff && ip[11] == 0xff) {
> +		/*
> +		 * IPV4
> +		 */
> +		return sprintf(buf, "%d.%d.%d.%d\n", ip[12],
> +			       ip[13], ip[14], ip[15]);
> +	} else
> +		return 0;
> +}

You probably just want to use the NIPQUAD_FMT and NIP6_FMT macros here. 
Also why isn't ipv6 supported?
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