From 14d2ccb0dec10370f5d53bfb331ae14376155c37 Mon Sep 17 00:00:00 2001
From: Liam Girdwood <liam.r.girdwood@linux.intel.com>
Date: Fri, 23 Oct 2026 14:11:51 +0100
Subject: [PATCH] schedule: dp: include the mailbox header in the application
 scheduler

zephyr_dp_schedule_application.c maps the IPC host box into the DP
thread memory domain using MAILBOX_HOSTBOX_BASE and MAILBOX_HOSTBOX_SIZE,
but it got their definitions from sof/audio/pipeline.h, which no longer
includes sof/lib/mailbox.h. Builds with CONFIG_SOF_USERSPACE_APPLICATION,
i.e. CONFIG_USERSPACE without CONFIG_SOF_USERSPACE_PROXY, fail since:

  error: use of undeclared identifier 'MAILBOX_HOSTBOX_BASE'

Include sof/lib/mailbox.h directly.

Fixes: c8d05c20f1e9 ("audio: pipeline: do not include the mailbox header from pipeline.h")
Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
Signed-off-by: Liam Girdwood <liam.r.girdwood@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>