From 6229fda7bdc4c57e123ff4db3331820f2fef7b55 Mon Sep 17 00:00:00 2001
From: Martine Lenders <m.lenders@fu-berlin.de>
Date: Fri, 20 Nov 2020 13:42:43 +0100
Subject: [PATCH] lwip: use new mbox_unset() function

---
 pkg/lwip/include/arch/sys_arch.h | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/pkg/lwip/include/arch/sys_arch.h b/pkg/lwip/include/arch/sys_arch.h
index c9dda62357c0..64c38a3441a7 100644
--- a/pkg/lwip/include/arch/sys_arch.h
+++ b/pkg/lwip/include/arch/sys_arch.h
@@ -101,13 +101,13 @@ typedef struct {
 
 static inline bool sys_mbox_valid(sys_mbox_t *mbox)
 {
-    return (mbox != NULL) && (mbox->mbox.cib.mask != 0);
+    return (mbox != NULL) && (mbox_size(&mbox->mbox) != 0);
 }
 
 static inline void sys_mbox_set_invalid(sys_mbox_t *mbox)
 {
     if (mbox != NULL) {
-        mbox->mbox.cib.mask = 0;
+        mbox_unset(&mbox->mbox);
     }
 }