linux-kernel - [PATCH linux-next] mm/hugetlb: replace get_hwpoison_huge_page() with get_hwpoison_hugetlb_folio() when !CONFIG

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Date:   Fri, 20 Jan 2023 10:36:09 +0800 (CST)
From:   <yang.yang29@....com.cn>
To:     <mike.kravetz@...cle.com>, <muchun.song@...ux.dev>
Cc:     <linux-mm@...ck.org>, <linux-kernel@...r.kernel.org>,
        <sidhartha.kumar@...cle.com>, <akpm@...ux-foundation.org>
Subject: [PATCH linux-next] mm/hugetlb: replace get_hwpoison_huge_page() with get_hwpoison_hugetlb_folio() when !CONFIG_HUGETLBFS

From: Yang Yang <yang.yang29@....com.cn>

When CONFIG_HUGETLBFS is not set, there are two problems. One
is implicit declaration of function get_hwpoison_hugetlb_folio(),
the other is get_hwpoison_huge_page() is defined but not used.
Fix them all by defining get_hwpoison_hugetlb_folio() instead of
get_hwpoison_huge_page() when !CONFIG_HUGETLB_PAGE.

Fixes: 92e109a2c5a7 ("mm/hugetlb: convert get_hwpoison_huge_page() to folios")
Signed-off-by: Yang Yang <yang.yang29@....com.cn>
---
 include/linux/hugetlb.h | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/include/linux/hugetlb.h b/include/linux/hugetlb.h
index f14a6bd2a6ed..9189cc359c64 100644
--- a/include/linux/hugetlb.h
+++ b/include/linux/hugetlb.h
@@ -417,7 +417,8 @@ static inline int isolate_hugetlb(struct folio *folio, struct list_head *list)
 	return -EBUSY;
 }

-static inline int get_hwpoison_huge_page(struct page *page, bool *hugetlb, bool unpoison)
+static inline int get_hwpoison_hugetlb_folio(struct folio *folio, bool *hugetlb,
+			bool unpoison)
 {
 	return 0;
 }
-- 
2.25.1