From 411f5d591a29600119cf182aa33f28253bf910d9 Mon Sep 17 00:00:00 2001
From: Xiang Xiao <xiaoxiang@xiaomi.com>
Date: Mon, 21 Sep 2020 16:39:09 +0800
Subject: [PATCH] sched: Fix undefined reference to 'sched_cpu_count'

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

diff --git a/include/sched.h b/include/sched.h
index 250b658197..a652eb6571 100644
--- a/include/sched.h
+++ b/include/sched.h
@@ -30,6 +30,7 @@
 #include <sys/types.h>
 #include <stdint.h>
 #include <stdbool.h>
+#include <strings.h>
 
 #include <nuttx/sched.h>
 
@@ -90,7 +91,7 @@
 
 /* int CPU_COUNT(FAR const cpu_set_t *set); */
 
-#  define CPU_COUNT(s) sched_cpu_count(s)
+#  define CPU_COUNT(s) popcountl(*s)
 
 /* void CPU_AND(FAR cpu_set_t *destset, FAR const cpu_set_t *srcset1,
  *              FAR const cpu_set_t *srcset2);