From f28c1c851bca884e24b681eb485b9f8477e4d76e Mon Sep 17 00:00:00 2001
From: Joel Cunningham <joel.cunningham@me.com>
Date: Sat, 15 Apr 2017 11:27:34 -0500
Subject: [PATCH] loopif: set pbuf if_idx during poll

This sets the pbuf's if_idx during the loopif poll function (the
equivalent netif input function).  This was found during IP_PKTINFO
development where p->if_idx is read and was uninitialized
---
 src/core/netif.c | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/src/core/netif.c b/src/core/netif.c
index a32101bc..e9627271 100644
--- a/src/core/netif.c
+++ b/src/core/netif.c
@@ -1057,6 +1057,8 @@ netif_poll(struct netif *netif)
     in_end->next = NULL;
     SYS_ARCH_UNPROTECT(lev);
 
+    in->if_idx = netif_get_index(netif);
+
     LINK_STATS_INC(link.recv);
     MIB2_STATS_NETIF_ADD(stats_if, ifinoctets, in->tot_len);
     MIB2_STATS_NETIF_INC(stats_if, ifinucastpkts);