linux-kernel - [PATCH] f2fs: fix unused function warning

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Message-Id: <20210125122457.4119313-1-arnd@kernel.org>
Date:   Mon, 25 Jan 2021 13:24:45 +0100
From:   Arnd Bergmann <arnd@...nel.org>
To:     Jaegeuk Kim <jaegeuk@...nel.org>, Chao Yu <chao@...nel.org>
Cc:     Arnd Bergmann <arnd@...db.de>, Eric Biggers <ebiggers@...gle.com>,
        Daeho Jeong <daehojeong@...gle.com>, Jan Kara <jack@...e.cz>,
        linux-f2fs-devel@...ts.sourceforge.net,
        linux-kernel@...r.kernel.org
Subject: [PATCH] f2fs: fix unused function warning

From: Arnd Bergmann <arnd@...db.de>

The f2fs_compress_set_level() function is only used for zstd and
lz4 compression modes, and otherwise causes a compile-time warning
for having no users.

Change the #ifdef check to match what calls it.

Fixes: c08e95fc6466 ("f2fs: compress: support compress level")
Signed-off-by: Arnd Bergmann <arnd@...db.de>
---
 fs/f2fs/super.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/fs/f2fs/super.c b/fs/f2fs/super.c
index 178bbb79bbcc..c5a69b0543c1 100644
--- a/fs/f2fs/super.c
+++ b/fs/f2fs/super.c
@@ -467,7 +467,7 @@ static int f2fs_set_test_dummy_encryption(struct super_block *sb,
 	return 0;
 }
 
-#ifdef CONFIG_F2FS_FS_COMPRESSION
+#if defined(CONFIG_F2FS_FS_LZ4) || defined(CONFIG_F2FS_FS_ZSTD)
 static int f2fs_compress_set_level(struct f2fs_sb_info *sbi, const char *str,
 						int type)
 {
-- 
2.29.2