linux-kernel - [PATCH AUTOSEL 6.8 10/43] memblock tests: fix undefined reference to `early_pfn_to

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Date: Mon, 22 Apr 2024 19:13:56 -0400
From: Sasha Levin <sashal@...nel.org>
To: linux-kernel@...r.kernel.org,
	stable@...r.kernel.org
Cc: Wei Yang <richard.weiyang@...il.com>,
	Yajun Deng <yajun.deng@...ux.dev>,
	Mike Rapoport <rppt@...nel.org>,
	Sasha Levin <sashal@...nel.org>,
	rongtao@...tc.cn
Subject: [PATCH AUTOSEL 6.8 10/43] memblock tests: fix undefined reference to `early_pfn_to_nid'

From: Wei Yang <richard.weiyang@...il.com>

[ Upstream commit 7d8ed162e6a92268d4b2b84d364a931216102c8e ]

commit 6a9531c3a880 ("memblock: fix crash when reserved memory is not
added to memory") introduce the usage of early_pfn_to_nid, which is not
defined in memblock tests.

The original definition of early_pfn_to_nid is defined in mm.h, so let
add this in the corresponding mm.h.

Signed-off-by: Wei Yang <richard.weiyang@...il.com>
CC: Yajun Deng <yajun.deng@...ux.dev>
CC: Mike Rapoport <rppt@...nel.org>
Link: https://lore.kernel.org/r/20240402132701.29744-2-richard.weiyang@gmail.com
Signed-off-by: Mike Rapoport (IBM) <rppt@...nel.org>
Signed-off-by: Sasha Levin <sashal@...nel.org>
---
 tools/include/linux/mm.h | 5 +++++
 1 file changed, 5 insertions(+)

diff --git a/tools/include/linux/mm.h b/tools/include/linux/mm.h
index f3c82ab5b14cd..7d73da0980473 100644
--- a/tools/include/linux/mm.h
+++ b/tools/include/linux/mm.h
@@ -37,4 +37,9 @@ static inline void totalram_pages_add(long count)
 {
 }
 
+static inline int early_pfn_to_nid(unsigned long pfn)
+{
+	return 0;
+}
+
 #endif
-- 
2.43.0