From: Christoph Hellwig hch@lst.de
[ Upstream commit 222013f9ac30b9cec44301daa8dbd0aae38abffb ]
Support for cryptoloop has been officially marked broken and deprecated in favor of dm-crypt (which supports the same broken algorithms if needed) in Linux 2.6.4 (released in March 2004), and support for it has been entirely removed from losetup in util-linux 2.23 (released in April 2013). Add a warning and a deprecation schedule.
Signed-off-by: Christoph Hellwig hch@lst.de Link: https://lore.kernel.org/r/20210827163250.255325-1-hch@lst.de Signed-off-by: Jens Axboe axboe@kernel.dk Signed-off-by: Sasha Levin sashal@kernel.org --- drivers/block/Kconfig | 4 ++-- drivers/block/cryptoloop.c | 2 ++ 2 files changed, 4 insertions(+), 2 deletions(-)
diff --git a/drivers/block/Kconfig b/drivers/block/Kconfig index 894102fd5a06..b701c79f07e5 100644 --- a/drivers/block/Kconfig +++ b/drivers/block/Kconfig @@ -257,7 +257,7 @@ config BLK_DEV_LOOP_MIN_COUNT dynamically allocated with the /dev/loop-control interface.
config BLK_DEV_CRYPTOLOOP - tristate "Cryptoloop Support" + tristate "Cryptoloop Support (DEPRECATED)" select CRYPTO select CRYPTO_CBC depends on BLK_DEV_LOOP @@ -269,7 +269,7 @@ config BLK_DEV_CRYPTOLOOP WARNING: This device is not safe for journaled file systems like ext3 or Reiserfs. Please use the Device Mapper crypto module instead, which can be configured to be on-disk compatible with the - cryptoloop device. + cryptoloop device. cryptoloop support will be removed in Linux 5.16.
source "drivers/block/drbd/Kconfig"
diff --git a/drivers/block/cryptoloop.c b/drivers/block/cryptoloop.c index 3d31761c0ed0..adbfd3e2a60f 100644 --- a/drivers/block/cryptoloop.c +++ b/drivers/block/cryptoloop.c @@ -203,6 +203,8 @@ init_cryptoloop(void)
if (rc) printk(KERN_ERR "cryptoloop: loop_register_transfer failed\n"); + else + pr_warn("the cryptoloop driver has been deprecated and will be removed in in Linux 5.16\n"); return rc; }