From mboxrd@z Thu Jan 1 00:00:00 1970 From: Sergei Shtylyov Subject: Re: [PATCH v3 3/3] usb: storage: update usb devices for write cache quirk in quirk list. Date: Sat, 09 Jun 2012 22:44:40 +0400 Message-ID: <4FD39998.4020903@mvista.com> References: <1339263678-4075-1-git-send-email-linkinjeon@gmail.com> Mime-Version: 1.0 Content-Type: text/plain; charset=ISO-8859-1; format=flowed Content-Transfer-Encoding: 7bit Return-path: Received: from mail-lpp01m010-f46.google.com ([209.85.215.46]:39639 "EHLO mail-lpp01m010-f46.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1755386Ab2FISqA (ORCPT ); Sat, 9 Jun 2012 14:46:00 -0400 Received: by lahd3 with SMTP id d3so1968406lah.19 for ; Sat, 09 Jun 2012 11:45:58 -0700 (PDT) In-Reply-To: <1339263678-4075-1-git-send-email-linkinjeon@gmail.com> Sender: linux-scsi-owner@vger.kernel.org List-Id: linux-scsi@vger.kernel.org To: Namjae Jeon Cc: James.Bottomley@HansenPartnership.com, gregkh@linuxfoundation.org, mdharm-usb@one-eyed-alien.net, stern@rowland.harvard.edu, bvanassche@acm.org, linux-usb@vger.kernel.org, linux-scsi@vger.kernel.org, linux-kernel@vger.kernel.org, Namjae Jeon , Pankaj Kumar , Amit Sahrawat Hello. On 06/09/2012 09:41 PM, Namjae Jeon wrote: > Update information of Seagate Portable HDD and WD My Passport HDD in > quirk list. > Signed-off-by: Namjae Jeon > Signed-off-by: Pankaj Kumar > Signed-off-by: Amit Sahrawat > --- > drivers/usb/storage/unusual_devs.h | 24 ++++++++++++++++++++++++ > 1 file changed, 24 insertions(+) > diff --git a/drivers/usb/storage/unusual_devs.h b/drivers/usb/storage/unusual_devs.h > index 1719886..64f0369 100644 > --- a/drivers/usb/storage/unusual_devs.h > +++ b/drivers/usb/storage/unusual_devs.h > @@ -1267,6 +1267,18 @@ UNUSUAL_DEV( 0x0af0, 0xd357, 0x0000, 0x0000, > USB_SC_DEVICE, USB_PR_DEVICE, NULL, > 0 ), > > +/* Reported by Namjae Jeon > + * Even though write cache is enabled by default, > + * SCSI driver assume that cache is not enabled > + * which in turn might lead loss of data ^ to the > + * since data still will be in cache. > + * So this entry is needed for assuming that cache is enabled. > + */ > +UNUSUAL_DEV(0x0bc2, 0x2300, 0x0000, 0x9999, > + "Seagate", > + "Portable HDD", > + USB_SC_DEVICE, USB_PR_DEVICE, NULL, US_FL_WRITE_CACHE), > + > /* Reported by Ben Efros */ > UNUSUAL_DEV( 0x0bc2, 0x3010, 0x0000, 0x0000, > "Seagate", > @@ -1468,6 +1480,18 @@ UNUSUAL_DEV( 0x1058, 0x0704, 0x0000, 0x9999, > USB_SC_DEVICE, USB_PR_DEVICE, NULL, > US_FL_SANE_SENSE), > > +/* Reported by Namjae Jeon > + * Even though write cache is enabled by default, > + * SCSI driver assume that cache is not enabled > + * which in turn might lead loss of data ^ to the WBR, Sergei