From df1ffd9680ba72eace3241b0af52da0bbd41ed34 Mon Sep 17 00:00:00 2001
From: Xiang Xiao <xiaoxiang@xiaomi.com>
Date: Thu, 5 Aug 2021 14:29:17 +0800
Subject: [PATCH] signal: Allow SIG_EVTHREAD selectable in protected mode

since we can delivery signal through libs/libc/wqueue

Signed-off-by: Xiang Xiao <xiaoxiang@xiaomi.com>
---
 sched/Kconfig | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/sched/Kconfig b/sched/Kconfig
index b9a066d5664..49417539414 100644
--- a/sched/Kconfig
+++ b/sched/Kconfig
@@ -1356,7 +1356,8 @@ config SIG_PREALLOC_IRQ_ACTIONS
 config SIG_EVTHREAD
 	bool "Support SIGEV_THHREAD"
 	default n
-	depends on BUILD_FLAT && SCHED_WORKQUEUE
+	depends on !BUILD_KERNEL && SCHED_WORKQUEUE
+	select LIB_USRWORK if BUILD_PROTECTED
 	---help---
 		Built in support for the SIGEV_THREAD signal deliver method.