On 12/03/2015 03:47 PM, Matan Barak wrote:
> +static int addr_resolve_neigh(struct dst_entry *dst,
> +                           const struct sockaddr *dst_in,
> +                           struct rdma_dev_addr *addr)
> +{
> +     if (dst->dev->flags & IFF_LOOPBACK) {
> +             int ret;
> +
> +             ret = rdma_translate_ip(dst_in, addr, NULL);
> +             if (!ret)
> +                     memcpy(addr->dst_dev_addr, addr->src_dev_addr,
> +                            MAX_ADDR_LEN);
> +
> +             return ret;
> +     }
> +
> +     /* If the device does ARP internally */
You mean "doesn't do ARP internally" right?

> +     if (!(dst->dev->flags & IFF_NOARP)) {
> +             const struct sockaddr_in *dst_in4 =
> +                     (const struct sockaddr_in *)dst_in;
> +             const struct sockaddr_in6 *dst_in6 =
> +                     (const struct sockaddr_in6 *)dst_in;
> +
> +             return dst_fetch_ha(dst, addr,
> +                                 dst_in->sa_family == AF_INET ?
> +                                 (const void *)&dst_in4->sin_addr.s_addr :
> +                                 (const void *)&dst_in6->sin6_addr);
> +     }
> +
> +     return rdma_copy_addr(addr, dst->dev, NULL);
> +}

> +int rdma_resolve_ip_route(struct sockaddr *src_addr,
> +                       const struct sockaddr *dst_addr,
> +                       struct rdma_dev_addr *addr)
> +{
> +     struct sockaddr_storage ssrc_addr;
> +     struct sockaddr *src_in = (struct sockaddr *)&ssrc_addr;
> +
> +     if (src_addr->sa_family != dst_addr->sa_family)
> +             return -EINVAL;
> +
> +     if (src_addr)
> +             memcpy(src_in, src_addr, rdma_addr_size(src_addr));
> +     else
> +             src_in->sa_family = dst_addr->sa_family;
Don't you need to clear the rest of src_in? I believe you pass
uninitialized memory to it.

> +
> +     return addr_resolve(src_in, dst_addr, addr, false);
> +}
> +EXPORT_SYMBOL(rdma_resolve_ip_route);

Haggai
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