linux-kernel - [PATCH 01/10] hugetlb: make hugetlb_cma

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Date:   Fri, 26 Aug 2022 17:24:13 +0800
From:   Miaohe Lin <linmiaohe@...wei.com>
To:     <akpm@...ux-foundation.org>, <mike.kravetz@...cle.com>,
        <songmuchun@...edance.com>
CC:     <linux-mm@...ck.org>, <linux-kernel@...r.kernel.org>,
        <linmiaohe@...wei.com>
Subject: [PATCH 01/10] hugetlb: make hugetlb_cma_check() static

Make hugetlb_cma_check() static as it's only used inside mm/hugetlb.c.

Signed-off-by: Miaohe Lin <linmiaohe@...wei.com>
---
 include/linux/hugetlb.h |  4 ----
 mm/hugetlb.c            | 10 +++++++++-
 2 files changed, 9 insertions(+), 5 deletions(-)

diff --git a/include/linux/hugetlb.h b/include/linux/hugetlb.h
index 852f911d676e..c2abbd7950de 100644
--- a/include/linux/hugetlb.h
+++ b/include/linux/hugetlb.h
@@ -1155,14 +1155,10 @@ static inline spinlock_t *huge_pte_lock(struct hstate *h,
 
 #if defined(CONFIG_HUGETLB_PAGE) && defined(CONFIG_CMA)
 extern void __init hugetlb_cma_reserve(int order);
-extern void __init hugetlb_cma_check(void);
 #else
 static inline __init void hugetlb_cma_reserve(int order)
 {
 }
-static inline __init void hugetlb_cma_check(void)
-{
-}
 #endif
 
 bool want_pmd_share(struct vm_area_struct *vma, unsigned long addr);
diff --git a/mm/hugetlb.c b/mm/hugetlb.c
index f1dc80f47dd6..10d84abb1ca7 100644
--- a/mm/hugetlb.c
+++ b/mm/hugetlb.c
@@ -4058,6 +4058,14 @@ static void hugetlb_register_all_nodes(void) { }
 
 #endif
 
+#ifdef CONFIG_CMA
+static void __init hugetlb_cma_check(void);
+#else
+static inline __init void hugetlb_cma_check(void)
+{
+}
+#endif
+
 static int __init hugetlb_init(void)
 {
 	int i;
@@ -7546,7 +7554,7 @@ void __init hugetlb_cma_reserve(int order)
 		hugetlb_cma_size = 0;
 }
 
-void __init hugetlb_cma_check(void)
+static void __init hugetlb_cma_check(void)
 {
 	if (!hugetlb_cma_size || cma_reserve_called)
 		return;
-- 
2.23.0