From 8f7e13796755cecc4f367b82dc9b1295dd083b7a Mon Sep 17 00:00:00 2001
From: Kai Vehmanen <kai.vehmanen@linux.intel.com>
Date: Fri, 23 Oct 2026 16:11:53 +0300
Subject: [PATCH] schedule: zephyr_dp_schedule_application: include
 sof/lib/mailbox.h

The code uses MAILBOX_HOSTBOX_BASE and MAILBOX_HOSTBOX_SIZE, but
relies on <sof/lib/mailbox.h> to be included indirectly. This breaks
when the indirect include chain changes. With latest Zephyr, the PTL
build fails with:

error: use of undeclared identifier 'MAILBOX_HOSTBOX_BASE'

Fix by including the header explicitly.

Signed-off-by: Kai Vehmanen <kai.vehmanen@linux.intel.com>
---
 src/schedule/zephyr_dp_schedule_application.c | 1 +
 1 file changed, 1 insertion(+)

diff --git a/src/schedule/zephyr_dp_schedule_application.c b/src/schedule/zephyr_dp_schedule_application.c
index 80fe50be31de..b7c4eac5626b 100644
--- a/src/schedule/zephyr_dp_schedule_application.c
+++ b/src/schedule/zephyr_dp_schedule_application.c
@@ -12,6 +12,7 @@
 #include <sof/audio/component.h>
 #include <sof/common.h>
 #include <sof/ipc/common.h>
+#include <sof/lib/mailbox.h>
 #include <sof/list.h>
 #include <sof/llext_manager.h>
 #include <sof/objpool.h>