+ mm-page_alloc-remove-unnecessary-__maybe_unused-in-order_to_pindex.patch added to mm-unstable branch

+ mm-page_alloc-remove-unnecessary-__maybe_unused-in-order_to_pindex.patch added to mm-unstable branch

[Andrew Morton]

The patch titled
     Subject: mm/page_alloc: remove unnecessary __maybe_unused in order_to_pindex()
has been added to the -mm mm-unstable branch.  Its filename is
     mm-page_alloc-remove-unnecessary-__maybe_unused-in-order_to_pindex.patch

This patch will shortly appear at
     https://git.kernel.org/pub/scm/linux/kernel/git/akpm/25-new.git/tree/patches/mm-page_alloc-remove-unnecessary-__maybe_unused-in-order_to_pindex.patch

This patch will later appear in the mm-unstable branch at
    git://git.kernel.org/pub/scm/linux/kernel/git/akpm/mm

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------------------------------------------------------
From: Liu Ye <liuye@kylinos.cn>
Subject: mm/page_alloc: remove unnecessary __maybe_unused in order_to_pindex()
Date: Wed, 19 Mar 2025 17:17:26 +0800

The `movable` variable is always used when `CONFIG_TRANSPARENT_HUGEPAGE`
is enabled, so the `__maybe_unused` attribute is not necessary.  This
patch removes it and keeps the variable declaration within the `#ifdef`
block for better clarity.

Link: https://lkml.kernel.org/r/20250319091726.401158-1-liuyerd@163.com
Signed-off-by: Liu Ye<liuye@kylinos.cn>

Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
---

 mm/page_alloc.c |    2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

--- a/mm/page_alloc.c~mm-page_alloc-remove-unnecessary-__maybe_unused-in-order_to_pindex
+++ a/mm/page_alloc.c
@@ -509,9 +509,9 @@ out:
 
 static inline unsigned int order_to_pindex(int migratetype, int order)
 {
-	bool __maybe_unused movable;
 
 #ifdef CONFIG_TRANSPARENT_HUGEPAGE
+	bool movable;
 	if (order > PAGE_ALLOC_COSTLY_ORDER) {
 		VM_BUG_ON(order != HPAGE_PMD_ORDER);
 
_

Patches currently in -mm which might be from liuye@kylinos.cn are

mm-page_alloc-remove-unnecessary-__maybe_unused-in-order_to_pindex.patch