linux-ext4 - [PATCH v2 2/7] f2fs: reject test_dummy_encryption when !CONFIG_FS

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Message-Id: <20220501050857.538984-3-ebiggers@kernel.org>
Date:   Sat, 30 Apr 2022 22:08:52 -0700
From:   Eric Biggers <ebiggers@...nel.org>
To:     linux-fscrypt@...r.kernel.org, linux-ext4@...r.kernel.org,
        linux-f2fs-devel@...ts.sourceforge.net
Cc:     Lukas Czerner <lczerner@...hat.com>, Theodore Ts'o <tytso@....edu>,
        Jaegeuk Kim <jaegeuk@...nel.org>,
        Jeff Layton <jlayton@...nel.org>
Subject: [PATCH v2 2/7] f2fs: reject test_dummy_encryption when !CONFIG_FS_ENCRYPTION

From: Eric Biggers <ebiggers@...gle.com>

There is no good reason to allow this mount option when the kernel isn't
configured with encryption support.  Since this option is only for
testing, we can just fix this; we don't really need to worry about
breaking anyone who might be counting on this option being ignored.

Signed-off-by: Eric Biggers <ebiggers@...gle.com>
---
 fs/f2fs/super.c | 5 +++--
 1 file changed, 3 insertions(+), 2 deletions(-)

diff --git a/fs/f2fs/super.c b/fs/f2fs/super.c
index 4368f90571bd6..6f69491aa5731 100644
--- a/fs/f2fs/super.c
+++ b/fs/f2fs/super.c
@@ -525,10 +525,11 @@ static int f2fs_set_test_dummy_encryption(struct super_block *sb,
 		return -EINVAL;
 	}
 	f2fs_warn(sbi, "Test dummy encryption mode enabled");
+	return 0;
 #else
-	f2fs_warn(sbi, "Test dummy encryption mount option ignored");
+	f2fs_warn(sbi, "test_dummy_encryption option not supported");
+	return -EINVAL;
 #endif
-	return 0;
 }
 
 #ifdef CONFIG_F2FS_FS_COMPRESSION
-- 
2.36.0