From f0d1b2e1e02c11e29c953f22a485449e3da2a575 Mon Sep 17 00:00:00 2001
From: Namjae Jeon <linkinjeon@kernel.org>
Date: Wed, 13 May 2026 10:44:46 +0900
Subject: [PATCH] exfat: fix implicit declaration of brelse()
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exfat_cluster_walk() calls brelse(bh) without including the header that
declares the function, causing the following build error:

    fs/exfat/exfat_fs.h:542:9: error: implicit declaration of function ‘brelse’ [-Werror=implicit-function-declaration]

Fix this by adding the missing buffer_head.h in exfat_fs.h.

Acked-by: Christoph Hellwig <hch@lst.de>
Acked-by: "Darrick J. Wong" <djwong@kernel.org>
Signed-off-by: Namjae Jeon <linkinjeon@kernel.org>
---
 fs/exfat/exfat_fs.h | 1 +
 1 file changed, 1 insertion(+)

diff --git a/fs/exfat/exfat_fs.h b/fs/exfat/exfat_fs.h
index e60b955da0d0..86ae468c965b 100644
--- a/fs/exfat/exfat_fs.h
+++ b/fs/exfat/exfat_fs.h
@@ -12,6 +12,7 @@
 #include <linux/blkdev.h>
 #include <linux/backing-dev.h>
 #include <uapi/linux/exfat.h>
+#include <linux/buffer_head.h>
 
 #define EXFAT_ROOT_INO		1