memblock tests: fix undefined reference to `BIT'
commit 772dd0342727 ("mm: enumerate all gfp flags") define gfp flags
with the help of BIT, while gfp_types.h doesn't include header file for
the definition. This through an error on building memblock tests.
Let's include linux/bits.h to fix it.
Signed-off-by: Wei Yang <richard.weiyang@gmail.com>
CC: Suren Baghdasaryan <surenb@google.com>
CC: Michal Hocko <mhocko@suse.com>
Link: https://lore.kernel.org/r/20240402132701.29744-4-richard.weiyang@gmail.com
Signed-off-by: Mike Rapoport (IBM) <rppt@kernel.org>
diff --git a/include/linux/gfp_types.h b/include/linux/gfp_types.h
index 868c8fb..13becaf 100644
--- a/include/linux/gfp_types.h
+++ b/include/linux/gfp_types.h
@@ -2,6 +2,8 @@
#ifndef __LINUX_GFP_TYPES_H
#define __LINUX_GFP_TYPES_H
+#include <linux/bits.h>
+
/* The typedef is in types.h but we want the documentation here */
#if 0
/**
