From mboxrd@z Thu Jan 1 00:00:00 1970 From: Akinobu Mita Subject: [PATCH 2/7] 3w-xxxx: fix transfer length 0 for 6-byte r/w commands Date: Sat, 16 May 2015 16:17:48 +0900 Message-ID: <1431760673-7180-3-git-send-email-akinobu.mita@gmail.com> References: <1431760673-7180-1-git-send-email-akinobu.mita@gmail.com> Return-path: Received: from mail-pd0-f169.google.com ([209.85.192.169]:33714 "EHLO mail-pd0-f169.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1753552AbbEPHSa (ORCPT ); Sat, 16 May 2015 03:18:30 -0400 Received: by pdbqa5 with SMTP id qa5so52169247pdb.0 for ; Sat, 16 May 2015 00:18:30 -0700 (PDT) In-Reply-To: <1431760673-7180-1-git-send-email-akinobu.mita@gmail.com> Sender: linux-scsi-owner@vger.kernel.org List-Id: linux-scsi@vger.kernel.org To: linux-scsi@vger.kernel.org, "James E.J. Bottomley" Cc: Akinobu Mita , Adam Radford For 6-byte r/w commands, transfer length 0 means 256 blocks of data, not 0 block. Signed-off-by: Akinobu Mita Cc: Adam Radford Cc: linux-scsi@vger.kernel.org --- drivers/scsi/3w-xxxx.c | 2 ++ 1 file changed, 2 insertions(+) diff --git a/drivers/scsi/3w-xxxx.c b/drivers/scsi/3w-xxxx.c index 2940bd7..e836aee 100644 --- a/drivers/scsi/3w-xxxx.c +++ b/drivers/scsi/3w-xxxx.c @@ -1727,6 +1727,8 @@ static int tw_scsiop_read_write(TW_Device_Extension *tw_dev, int request_id) if (srb->cmnd[0] == READ_6 || srb->cmnd[0] == WRITE_6) { lba = ((u32)srb->cmnd[1] << 16) | ((u32)srb->cmnd[2] << 8) | (u32)srb->cmnd[3]; num_sectors = (u32)srb->cmnd[4]; + if (num_sectors == 0) + num_sectors = 256; } else { lba = ((u32)srb->cmnd[2] << 24) | ((u32)srb->cmnd[3] << 16) | ((u32)srb->cmnd[4] << 8) | (u32)srb->cmnd[5]; num_sectors = (u32)srb->cmnd[8] | ((u32)srb->cmnd[7] << 8); -- 1.9.1