[PATCH] mm/swap: Fix swap_cluster_lock() !CONFIG_SWAP stub signature mismatch

[Hongfu Li <hongfu.li@linux.dev>]

From: Hongfu Li <lihongfu@kylinos.cn>

The !CONFIG_SWAP stub for swap_cluster_lock() has mismatched prototype:
it has an extra unused irq argument and uses pgoff_t instead of unsigned
long for offset. All callers are under CONFIG_SWAP so the extra parameter
is dead.

Sync the stub signature with the real function.

Fixes: 8578e0c00dcf ("mm, swap: use the swap table for the swap cache and switch API")
Signed-off-by: Hongfu Li <lihongfu@kylinos.cn>
---
 mm/swap.h | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/mm/swap.h b/mm/swap.h
index 77d2d14eda42..2c4667662601 100644
--- a/mm/swap.h
+++ b/mm/swap.h
@@ -337,7 +337,7 @@ static inline unsigned int folio_swap_flags(struct folio *folio)
 #else /* CONFIG_SWAP */
 struct swap_iocb;
 static inline struct swap_cluster_info *swap_cluster_lock(
-	struct swap_info_struct *si, pgoff_t offset, bool irq)
+		struct swap_info_struct *si, unsigned long offset)
 {
 	return NULL;
 }
-- 
2.54.0