[PATCH] mm: Constify __dump_folio() arguments

["Matthew Wilcox (Oracle)" <willy@infradead.org>]

These arguments aren't modified by the function; mark them as const to
help the compiler.

Signed-off-by: Matthew Wilcox (Oracle) <willy@infradead.org>
---
 mm/debug.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/mm/debug.c b/mm/debug.c
index 64ddb0c4b4be..81f03e185d29 100644
--- a/mm/debug.c
+++ b/mm/debug.c
@@ -67,7 +67,7 @@ static const char *page_type_name(unsigned int page_type)
 	return page_type_names[i];
 }
 
-static void __dump_folio(struct folio *folio, struct page *page,
+static void __dump_folio(const struct folio *folio, struct page *page,
 		unsigned long pfn, unsigned long idx)
 {
 	struct address_space *mapping = folio_mapping(folio);
-- 
2.47.2