[PATCH v3 4/5] memblock test: fix implicit declaration of function 'isspace'

[Wei Yang <richard.weiyang@xxxxxxxxx>]

Commit 1e4c64b71c9b ("mm/memblock: Add "reserve_mem" to reserved named
memory at boot up") introduce usage of isspace().

Let's include <linux/ctype.h> in kernel.h to fix this.

Signed-off-by: Wei Yang <richard.weiyang@xxxxxxxxx>

---
v2: include ctype.h in kernel.h
---
 tools/testing/memblock/linux/kernel.h | 1 +
 1 file changed, 1 insertion(+)

diff --git a/tools/testing/memblock/linux/kernel.h b/tools/testing/memblock/linux/kernel.h
index c16d9cd2d1ae..4d1012d5be6e 100644
--- a/tools/testing/memblock/linux/kernel.h
+++ b/tools/testing/memblock/linux/kernel.h
@@ -9,5 +9,6 @@
 #include <linux/linkage.h>
 #include <linux/kconfig.h>
 #include <linux/string.h>
+#include <linux/ctype.h>
 
 #endif
-- 
2.34.1