[PATCH] udp_flow: Remove obsolete comment

[David Gibson <david@gibson.dropbear.id.au>]

This comment was true - although the upshot was not particularly clear -
when it was introduced.  However, for other reaosns we now *do* always
populate ini->oaddr from flow_initiate_sa().  So rather than explaning
why we can't, we can actually validate ini->oaddr.

Signed-off-by: David Gibson <david@gibson.dropbear.id.au>
---
 udp_flow.c | 5 +----
 1 file changed, 1 insertion(+), 4 deletions(-)

diff --git a/udp_flow.c b/udp_flow.c
index f59649f6..a29f3562 100644
--- a/udp_flow.c
+++ b/udp_flow.c
@@ -247,11 +247,8 @@ flow_sidx_t udp_flow_from_sock(const struct ctx *c, uint8_t pif,
 	ini = flow_initiate_sa(flow, pif, s_in, dst, port);
 
 	if (!inany_is_unicast(&ini->eaddr) ||
+	    inany_is_unspecified(&ini->oaddr) ||
 	    ini->eport == 0 || ini->oport == 0) {
-		/* In principle ini->oddr also must be specified, but when we've
-		 * been initiated from a socket bound to 0.0.0.0 or ::, we don't
-		 * know our address, so we have to leave it unpopulated.
-		 */
 		flow_err_ratelimit(flow, now,
 				   "Invalid endpoint on UDP recvfrom()");
 		flow_alloc_cancel(flow);
-- 
2.55.0