From dbb7c00aa59d3d6865ec5e41197fecd4c8c02d17 Mon Sep 17 00:00:00 2001
From: Sylvain Rochet <gradator@gradator.net>
Date: Wed, 21 Oct 2020 01:43:57 +0200
Subject: [PATCH] PPP: add LWIP_ASSERT_CORE_LOCKED to
 ppp_set_notify_phase_callback

This function call the notify phase callback that should be called from
the lwIP core thread. This is especially true if the user callback
is not designed to be reentrant.
---
 src/netif/ppp/ppp.c | 1 +
 1 file changed, 1 insertion(+)

diff --git a/src/netif/ppp/ppp.c b/src/netif/ppp/ppp.c
index fef080fc..27078f30 100644
--- a/src/netif/ppp/ppp.c
+++ b/src/netif/ppp/ppp.c
@@ -251,6 +251,7 @@ void ppp_set_mppe(ppp_pcb *pcb, u8_t flags) {
 
 #if PPP_NOTIFY_PHASE
 void ppp_set_notify_phase_callback(ppp_pcb *pcb, ppp_notify_phase_cb_fn notify_phase_cb) {
+  LWIP_ASSERT_CORE_LOCKED();
   pcb->notify_phase_cb = notify_phase_cb;
   notify_phase_cb(pcb, pcb->phase, pcb->ctx_cb);
 }