From 112e378fccf13b091a7f761395d390b2eaabebde Mon Sep 17 00:00:00 2001
From: Benjamin Valentin <benjamin.valentin@ml-pa.com>
Date: Tue, 9 Jan 2024 19:00:22 +0100
Subject: [PATCH] cpu/avr8_common: fix build with !core_thread

---
 cpu/avr8_common/thread_arch.c | 7 ++++++-
 1 file changed, 6 insertions(+), 1 deletion(-)

diff --git a/cpu/avr8_common/thread_arch.c b/cpu/avr8_common/thread_arch.c
index 1806db364b..f6529c9fb4 100644
--- a/cpu/avr8_common/thread_arch.c
+++ b/cpu/avr8_common/thread_arch.c
@@ -260,6 +260,10 @@ void NORETURN avr8_enter_thread_mode(void)
 
 void thread_yield_higher(void)
 {
+    if (!IS_USED(MODULE_CORE_THREAD)) {
+        return;
+    }
+
     if (irq_is_in() == 0) {
         avr8_context_save();
         sched_run();
@@ -278,7 +282,8 @@ void avr8_exit_isr(void)
     __asm__ volatile ("" : : : "memory");
 
     /* schedule should switch context when returning from a non nested interrupt */
-    if (sched_context_switch_request && avr8_state_irq_count == 0) {
+    if (sched_context_switch_request && avr8_state_irq_count == 0 &&
+        IS_USED(MODULE_CORE_THREAD)) {
         avr8_context_save();
         sched_run();
         avr8_context_restore();