linux-kernel - [PATCH 3/3] memblock tests: fix undefined reference to `BIT'

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Date: Tue,  2 Apr 2024 13:27:01 +0000
From: Wei Yang <richard.weiyang@...il.com>
To: akpm@...ux-foundation.org,
	rppt@...nel.org,
	rongtao@...tc.cn
Cc: linux-kernel@...r.kernel.org,
	linux-mm@...ck.org,
	Wei Yang <richard.weiyang@...il.com>,
	Suren Baghdasaryan <surenb@...gle.com>,
	Michal Hocko <mhocko@...e.com>
Subject: [PATCH 3/3] 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@...il.com>
CC: Suren Baghdasaryan <surenb@...gle.com>
CC: Michal Hocko <mhocko@...e.com>
---
 include/linux/gfp_types.h | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/include/linux/gfp_types.h b/include/linux/gfp_types.h
index 868c8fb1bbc1..13becafe41df 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
 /**
-- 
2.34.1