<p></p>
<p><b>@fjmolinas</b> commented on this pull request.</p>

<hr>

<p>In <a href="https://github.com/RIOT-OS/RIOT/pull/11117#discussion_r693922887">cpu/cortexm_common/include/irq_arch.h</a>:</p>
<pre style='color:#555'>> @@ -60,6 +60,14 @@ static inline __attribute__((always_inline)) void irq_restore(
     __set_PRIMASK(state);
 }
 
+static inline __attribute__((always_inline)) int irq_is_enabled(void)
</pre>
<p>Can you add a small comment so</p>

⬇️ Suggested change
<pre style="color: #555">-static inline __attribute__((always_inline)) int irq_is_enabled(void)
+/**
+ * @brief See if IRQs are currently enabled
+ */
+static inline __attribute__((always_inline)) int irq_is_enabled(void)
</pre>


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