Use ksmbd_req_buf_next() in ksmbd_verify_smb_message().
Acked-by: Namjae Jeon <linkinjeon@kernel.org>
Signed-off-by: Ralph Boehme <slow@samba.org>
Signed-off-by: Steve French <stfrench@microsoft.com>
  */
 int ksmbd_verify_smb_message(struct ksmbd_work *work)
 {
-       struct smb2_hdr *smb2_hdr = work->request_buf + work->next_smb2_rcv_hdr_off;
+       struct smb2_hdr *smb2_hdr = ksmbd_req_buf_next(work);
        struct smb_hdr *hdr;
 
        if (smb2_hdr->ProtocolId == SMB2_PROTO_NUMBER)