From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from mail.linuxfoundation.org ([140.211.169.12]:48320 "EHLO mail.linuxfoundation.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1751542AbcKIIfy (ORCPT ); Wed, 9 Nov 2016 03:35:54 -0500 Subject: Patch "scsi: arcmsr: Send SYNCHRONIZE_CACHE command to firmware" has been added to the 4.4-stable tree To: ching2048@areca.com.tw, gregkh@linuxfoundation.org, martin.petersen@oracle.com, thenzl@redhat.com Cc: , From: Date: Wed, 09 Nov 2016 09:35:35 +0100 Message-ID: <1478680535230102@kroah.com> MIME-Version: 1.0 Content-Type: text/plain; charset=ANSI_X3.4-1968 Content-Transfer-Encoding: 8bit Sender: stable-owner@vger.kernel.org List-ID: This is a note to let you know that I've just added the patch titled scsi: arcmsr: Send SYNCHRONIZE_CACHE command to firmware to the 4.4-stable tree which can be found at: http://www.kernel.org/git/?p=linux/kernel/git/stable/stable-queue.git;a=summary The filename of the patch is: scsi-arcmsr-send-synchronize_cache-command-to-firmware.patch and it can be found in the queue-4.4 subdirectory. If you, or anyone else, feels it should not be added to the stable tree, please let know about it. >>From 2bf7dc8443e113844d078fd6541b7f4aa544f92f Mon Sep 17 00:00:00 2001 From: Ching Huang Date: Wed, 19 Oct 2016 17:50:26 +0800 Subject: scsi: arcmsr: Send SYNCHRONIZE_CACHE command to firmware From: Ching Huang commit 2bf7dc8443e113844d078fd6541b7f4aa544f92f upstream. The arcmsr driver failed to pass SYNCHRONIZE CACHE to controller firmware. Depending on how drive caches are handled internally by controller firmware this could potentially lead to data integrity problems. Ensure that cache flushes are passed to the controller. [mkp: applied by hand and removed unused vars] Signed-off-by: Ching Huang Reported-by: Tomas Henzl Signed-off-by: Martin K. Petersen Signed-off-by: Greg Kroah-Hartman --- drivers/scsi/arcmsr/arcmsr_hba.c | 9 --------- 1 file changed, 9 deletions(-) --- a/drivers/scsi/arcmsr/arcmsr_hba.c +++ b/drivers/scsi/arcmsr/arcmsr_hba.c @@ -2545,18 +2545,9 @@ static int arcmsr_queue_command_lck(stru struct AdapterControlBlock *acb = (struct AdapterControlBlock *) host->hostdata; struct CommandControlBlock *ccb; int target = cmd->device->id; - int lun = cmd->device->lun; - uint8_t scsicmd = cmd->cmnd[0]; cmd->scsi_done = done; cmd->host_scribble = NULL; cmd->result = 0; - if ((scsicmd == SYNCHRONIZE_CACHE) ||(scsicmd == SEND_DIAGNOSTIC)){ - if(acb->devstate[target][lun] == ARECA_RAID_GONE) { - cmd->result = (DID_NO_CONNECT << 16); - } - cmd->scsi_done(cmd); - return 0; - } if (target == 16) { /* virtual device for iop message transfer */ arcmsr_handle_virtual_command(acb, cmd); Patches currently in stable-queue which might be from ching2048@areca.com.tw are queue-4.4/scsi-arcmsr-send-synchronize_cache-command-to-firmware.patch