On Wed, Nov 03, 2021 at 12:02:38AM -0500, Bob Pearson wrote:
> + if (mgid->raw[10] == 0xff && mgid->raw[11] == 0xff) {
> + if ((mgid->raw[12] & 0xf0) != 0xe0)
> + pr_info("mgid is not an ipv4 mc address\n");
> +
> + /* mgid is a mapped IPV4 multicast address
> + * use the 32 bits as an index which will be
> + * unique
> + */
> + index = be32_to_cpu(val32[3]);
> + } else {
> + if (mgid->raw[0] != 0xff)
> + pr_info("mgid is not an ipv6 mc address\n");
> +
> + /* mgid is an IPV6 multicast address which won't
> + * fit into the index so construct the index
> + * from the four 32 bit words in mgid.
> + * If there is a collision treat it like
> + * no memory and return NULL
> + */
> + index = be32_to_cpu(val32[0] ^ val32[1]);
> + index = (index << 32) | be32_to_cpu(val32[2] ^ val32[3]);
I'm not sure failing is such a good thing, can it chain them on a
linked list or something?
Jason
