[PATCH] bootp: use the ipv* version given by the dhcp server

[Josef Bacik <jbacik@fb.com>]

We were setting DNS_OPTION_PREVER_IPV* based on which version of the dhcp
request we go back.  However this would mean that we would mistakenly fall back
on ipv4 in an ipv6 only system, or vice versa.  For the sake of simplicity lets
only use the ip version for the dns server we got in our dhcp response.  Thanks,

Signed-off-by: Josef Bacik <jbacik@fb.com>
---
 grub-core/net/bootp.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/grub-core/net/bootp.c b/grub-core/net/bootp.c
index 345ad7a..cde818c 100644
--- a/grub-core/net/bootp.c
+++ b/grub-core/net/bootp.c
@@ -95,7 +95,7 @@ parse_dhcp_vendor (const char *name, const void *vend, int limit, int *mask)
 		struct grub_net_network_level_address s;
 		s.type = GRUB_NET_NETWORK_LEVEL_PROTOCOL_IPV4;
 		s.ipv4 = grub_get_unaligned32 (ptr);
-		s.option = DNS_OPTION_PREFER_IPV4;
+		s.option = DNS_OPTION_IPV4;
 		grub_net_add_dns_server (&s);
 		ptr += 4;
 	      }
@@ -492,7 +492,7 @@ get_dhcpv6_dns_address (const struct grub_net_dhcpv6_packet *packet,
       (la + i)->type = GRUB_NET_NETWORK_LEVEL_PROTOCOL_IPV6;
       (la + i)->ipv6[0] = grub_get_unaligned64 (pa);
       (la + i)->ipv6[1] = grub_get_unaligned64 (pa + 8);
-      (la + i)->option = DNS_OPTION_PREFER_IPV6;
+      (la + i)->option = DNS_OPTION_IPV6;
     }
 
   *addr = la;
-- 
2.5.0