btrfs: fix 64bit compat send ioctl arguments not initializing version member

stable inclusion
from stable-v6.6.5
commit 4a1a4bf2261e0772d780a98fabfbed718b83ba3a
category: bugfix
bugzilla: https://gitee.com/openeuler/kernel/issues/I8N21P

Reference: https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git/commit/?id=4a1a4bf2261e0772d780a98fabfbed718b83ba3a

--------------------------------

commit 5de0434bc064606d6b7467ec3e5ad22963a18c04 upstream.

When the send protocol versioning was added in 5.16 e77fbf99
("btrfs: send: prepare for v2 protocol"), the 32/64bit compat code was
not updated (added by 2351f431 ("btrfs: fix send ioctl on 32bit with
64bit kernel")), missing the version struct member. The compat code is
probably rarely used, nobody reported any bugs.

Found by tool https://github.com/jirislaby/clang-struct

 .

Fixes: e77fbf99 ("btrfs: send: prepare for v2 protocol")
CC: stable@vger.kernel.org # 6.1+
Reviewed-by: Filipe Manana <fdmanana@suse.com>
Signed-off-by: David Sterba <dsterba@suse.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Signed-off-by: Zheng Zengkai <zhengzengkai@huawei.com>