cifs: remove useless parameter 'is_fsctl' from SMB2_ioctl()

stable inclusion
from stable-v5.10.143
commit 98127f140bc4db0d19e6e32ed44ed09008a27df0
category: bugfix
bugzilla: https://gitee.com/openeuler/kernel/issues/I6D0U6

Reference: https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git/commit/?id=98127f140bc4db0d19e6e32ed44ed09008a27df0



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[ Upstream commit 400d0ad6 ]

SMB2_ioctl() is always called with is_fsctl = true, so doesn't make any
sense to have it at all.

Thus, always set SMB2_0_IOCTL_IS_FSCTL flag on the request.

Also, as per MS-SMB2 3.3.5.15 "Receiving an SMB2 IOCTL Request", servers
must fail the request if the request flags is zero anyway.

Signed-off-by: Enzo Matsumiya <ematsumiya@suse.de>
Reviewed-by: Tom Talpey <tom@talpey.com>
Signed-off-by: Steve French <stfrench@microsoft.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
Signed-off-by: Jialin Zhang <zhangjialin11@huawei.com>
Reviewed-by: Zheng Zengkai <zhengzengkai@huawei.com>