diff options
| author | Carlos Llamas <cmllamas@google.com> | 2022-03-29 23:18:15 +0300 |
|---|---|---|
| committer | Jens Axboe <axboe@kernel.dk> | 2022-03-30 17:54:32 +0300 |
| commit | f941c51eeac7ebe0f8ec30943bf78e7f60aad039 (patch) | |
| tree | d39cb8cab63c284cb6db354b1d9606a243a6a411 /drivers/block | |
| parent | 1e06b3e71e07e0dd8801edc4f26ea1411d1d34c2 (diff) | |
| download | linux-f941c51eeac7ebe0f8ec30943bf78e7f60aad039.tar.xz | |
loop: fix ioctl calls using compat_loop_info
Support for cryptoloop was deleted in commit 47e9624616c8 ("block:
remove support for cryptoloop and the xor transfer"), making the usage
of loop_info->lo_encrypt_type obsolete. However, this member was also
removed from the compat_loop_info definition and this breaks userspace
ioctl calls for 32-bit binaries and CONFIG_COMPAT=y.
This patch restores the compat_loop_info->lo_encrypt_type member and
marks it obsolete as well as in the uapi header definitions.
Fixes: 47e9624616c8 ("block: remove support for cryptoloop and the xor transfer")
Signed-off-by: Carlos Llamas <cmllamas@google.com>
Reviewed-by: Christoph Hellwig <hch@lst.de>
Link: https://lore.kernel.org/r/20220329201815.1347500-1-cmllamas@google.com
Signed-off-by: Jens Axboe <axboe@kernel.dk>
Diffstat (limited to 'drivers/block')
| -rw-r--r-- | drivers/block/loop.c | 1 |
1 files changed, 1 insertions, 0 deletions
diff --git a/drivers/block/loop.c b/drivers/block/loop.c index e733c48de2e9..39e7650f89b1 100644 --- a/drivers/block/loop.c +++ b/drivers/block/loop.c @@ -1592,6 +1592,7 @@ struct compat_loop_info { compat_ulong_t lo_inode; /* ioctl r/o */ compat_dev_t lo_rdevice; /* ioctl r/o */ compat_int_t lo_offset; + compat_int_t lo_encrypt_type; /* obsolete, ignored */ compat_int_t lo_encrypt_key_size; /* ioctl w/o */ compat_int_t lo_flags; /* ioctl r/o */ char lo_name[LO_NAME_SIZE]; |