cifs: remove header_preamble_size where it is always 0

Since header_preamble_size is 0 for SMB2+ we can remove it in those
code paths that are only invoked from SMB2.

Signed-off-by: Ronnie Sahlberg <lsahlber@redhat.com>
Signed-off-by: Steve French <stfrench@microsoft.com>
This commit is contained in:
Ronnie Sahlberg 2018-06-01 10:53:07 +10:00 • committed by Steve French
commit 1fc6ad2f10
3 changed files with 48 additions and 68 deletions