linux-kernel - [PATCH V2 6/6] mm/sparse: remove one duplicated #ifdef CONFIG_SPARSEMEM

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Date:   Mon, 31 May 2021 17:19:08 +0800
From:   Dong Aisheng <aisheng.dong@....com>
To:     linux-mm@...ck.org
Cc:     linux-kernel@...r.kernel.org, dongas86@...il.com,
        Dong Aisheng <aisheng.dong@....com>
Subject: [PATCH V2 6/6] mm/sparse: remove one duplicated #ifdef CONFIG_SPARSEMEM_EXTREME

Those two blocks of code contained by #ifdef CONFIG_SPARSEMEM_EXTREME
condition are right along with each other. Not need using another #ifdef
condition.

Signed-off-by: Dong Aisheng <aisheng.dong@....com>
---
ChangeLog:
 *new patch
---
 mm/sparse.c | 18 ++++++++----------
 1 file changed, 8 insertions(+), 10 deletions(-)

diff --git a/mm/sparse.c b/mm/sparse.c
index 6412010478f7..2905ee9fde10 100644
--- a/mm/sparse.c
+++ b/mm/sparse.c
@@ -114,16 +114,7 @@ static int __meminit sparse_index_init(unsigned long section_nr, int nid)
 
 	return 0;
 }
-#else /* !SPARSEMEM_EXTREME */
-static inline int sparse_index_init(unsigned long section_nr, int nid)
-{
-	return 0;
-}
 
-static inline void sparse_alloc_section_roots(void) {}
-#endif
-
-#ifdef CONFIG_SPARSEMEM_EXTREME
 unsigned long __section_nr(struct mem_section *ms)
 {
 	unsigned long root_nr;
@@ -142,11 +133,18 @@ unsigned long __section_nr(struct mem_section *ms)
 
 	return (root_nr * SECTIONS_PER_ROOT) + (ms - root);
 }
-#else
+#else /* !SPARSEMEM_EXTREME */
+static inline int sparse_index_init(unsigned long section_nr, int nid)
+{
+	return 0;
+}
+
 unsigned long __section_nr(struct mem_section *ms)
 {
 	return (unsigned long)(ms - mem_sections[0]);
 }
+
+static inline void sparse_alloc_section_roots(void) {}
 #endif
 
 /*
-- 
2.25.1