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commitf902b21650upstream. The idea of the warning in ext4_update_dx_flag() is that we should warn when we are clearing EXT4_INODE_INDEX on a filesystem with metadata checksums enabled since after clearing the flag, checksums for internal htree nodes will become invalid. So there's no need to warn (or actually do anything) when EXT4_INODE_INDEX is not set. Link: https://lore.kernel.org/r/20201118153032.17281-1-jack@suse.cz Fixes:48a3431195("ext4: fix checksum errors with indexed dirs") Reported-by: Eric Biggers <ebiggers@kernel.org> Reviewed-by: Eric Biggers <ebiggers@google.com> Signed-off-by: Jan Kara <jack@suse.cz> Signed-off-by: Theodore Ts'o <tytso@mit.edu> Cc: stable@kernel.org Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>