From b5f96d2040ca92bb1dcbb6f190124f30bada69ac Mon Sep 17 00:00:00 2001
From: Erik Ekman <eekman@google.com>
Date: Thu, 25 Nov 2021 11:09:15 +0100
Subject: [PATCH] cpu/cortexm_common: Suppress cppcheck errors

cpu/cortexm_common/thread_arch.c:262: error (comparePointers): Comparing pointers that point to different objects
cpu/cortexm_common/thread_arch.c:266: error (comparePointers): Subtracting pointers that point to different objects
---
 cpu/cortexm_common/thread_arch.c | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/cpu/cortexm_common/thread_arch.c b/cpu/cortexm_common/thread_arch.c
index 23af0bf701..48358e8a86 100644
--- a/cpu/cortexm_common/thread_arch.c
+++ b/cpu/cortexm_common/thread_arch.c
@@ -259,10 +259,12 @@ int thread_isr_stack_usage(void)
 {
     uint32_t *ptr = &_sstack;
 
-    while(((*ptr) == STACK_CANARY_WORD) && (ptr < &_estack)) {
+    /* cppcheck-suppress comparePointers */
+    while (((*ptr) == STACK_CANARY_WORD) && (ptr < &_estack)) {
         ++ptr;
     }
 
+    /* cppcheck-suppress comparePointers */
     ptrdiff_t num_used_words = &_estack - ptr;
     return num_used_words * sizeof(*ptr);
 }