From 65d8429d291c0bbad57c2ebe53a5d1f12c7327d1 Mon Sep 17 00:00:00 2001
From: Jukka Rissanen <jukka.rissanen@linux.intel.com>
Date: Fri, 6 Mar 2020 15:19:50 +0200
Subject: [PATCH] net: pkt: Print caller and line when allocation fails

It is useful to know who called the net_pkt allocator when
we run out of buffers.

Signed-off-by: Jukka Rissanen <jukka.rissanen@linux.intel.com>
---
 subsys/net/ip/net_pkt.c | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/subsys/net/ip/net_pkt.c b/subsys/net/ip/net_pkt.c
index 8345649f96b..9cf619f142e 100644
--- a/subsys/net/ip/net_pkt.c
+++ b/subsys/net/ip/net_pkt.c
@@ -1150,7 +1150,11 @@ int net_pkt_alloc_buffer(struct net_pkt *pkt,
 #endif
 
 	if (!buf) {
+#if NET_LOG_LEVEL >= LOG_LEVEL_DBG
+		NET_ERR("Data buffer allocation failed (%s:%d)", caller, line);
+#else
 		NET_ERR("Data buffer allocation failed.");
+#endif
 		return -ENOMEM;
 	}