[patch 176/178] mm/page_alloc: redundant definition variables of pfn in for loop

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From: huxiang <huxiang@xxxxxxxxxxxxx>
Subject: mm/page_alloc: redundant definition variables of pfn in for loop

This variable pfn is defined repeatedly, so it can be deleted.

Link: https://lkml.kernel.org/r/20210401022802.10358-1-huxiang@xxxxxxxxxxxxx
Signed-off-by: huxiang <huxiang@xxxxxxxxxxxxx>
Signed-off-by: Andrew Morton <akpm@xxxxxxxxxxxxxxxxxxxx>
---

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

--- a/mm/page_alloc.c~mm-page_alloc-redundant-definition-variables-of-pfn-in-for-loop
+++ a/mm/page_alloc.c
@@ -3322,7 +3322,7 @@ void free_unref_page_list(struct list_he
 
 	local_irq_save(flags);
 	list_for_each_entry_safe(page, next, list, lru) {
-		unsigned long pfn = page_private(page);
+		pfn = page_private(page);
 
 		set_page_private(page, 0);
 		trace_mm_page_free_batched(page);
_




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