From fff2dd2627e78fc187b47074436de524db393ac2 Mon Sep 17 00:00:00 2001
From: Paul Sokolovsky <pfalcon@users.sourceforge.net>
Date: Tue, 29 Dec 2015 21:00:52 +0200
Subject: [PATCH] extmod/modlwip: Mark some lwip_socket_obj_t's fields as
volatile.
Any fields changed by asynchronous callbacks must be volatile.
---
extmod/modlwip.c | 4 ++--
1 file changed, 2 insertions(+), 2 deletions(-)
diff --git a/extmod/modlwip.c b/extmod/modlwip.c
index afd606729..afe5ca9e7 100644
--- a/extmod/modlwip.c
+++ b/extmod/modlwip.c
@@ -183,11 +183,11 @@ static const int error_lookup_table[] = {
typedef struct _lwip_socket_obj_t {
mp_obj_base_t base;
- union {
+ volatile union {
struct tcp_pcb *tcp;
struct udp_pcb *udp;
} pcb;
- union {
+ volatile union {
struct pbuf *pbuf;
struct tcp_pcb *connection;
} incoming;
--
GitLab