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From: Brice Goglin <brice.goglin@gmail.com>
To: Cyril Roelandt <tipecaml@gmail.com>,
	Alan Stern <stern@rowland.harvard.edu>
Cc: USB list <linux-usb@vger.kernel.org>,
	sellis@redhat.com, pachoramos@gmail.com,
	labbott@fedoraproject.org, gregkh@linuxfoundation.org,
	javhera@gmx.com
Subject: Re: [BUG] Regression in Linux 5.4.17 for JMicron JMS566 enclosure
Date: Mon, 24 Aug 2020 00:14:38 +0200	[thread overview]
Message-ID: <558e1879-e17a-6185-70db-b45c3f640596@gmail.com> (raw)
In-Reply-To: <20200823180837.GA3448@Susan>


Le 23/08/2020 à 20:08, Cyril Roelandt a écrit :
> Hello,
>
> On 2020-08-23 10:47, Alan Stern wrote:
>> Yes; it looks like the problem is that there are entries for this device 
>> in both unusual_devs.h and unusual_uas.h -- and it doesn't help that the 
>> two entries aren't identical.
>>
>> The unusual_devs.h entry tells usb-storage not to use FUA, but it 
>> doesn't rule out the uas driver.  And since the device claims to support 
>> UAS, usb-storage bows out.  But then the unusual_uas.h entry tells uas 
>> not to handle the drive, so the end result is that it doesn't get 
>> handled at all.
>>
>> To fix the immediate problem you should add the US_FL_IGNORE_UAS flag to 
>> the entry in unusual_devs.h.
> That did the trick[1]. Do you think this patch could be suitable for a
> future version of the kernel?


It fixes my issue too (on top of 5.7.17).

Brice


  reply	other threads:[~2020-08-23 22:14 UTC|newest]

Thread overview: 23+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2020-04-15 20:56 [BUG] Regression in Linux 5.4.17 for JMicron JMS566 enclosure Cyril Roelandt
2020-04-16  1:21 ` Alan Stern
     [not found]   ` <CABLbxQ2Hoq8zt--w2FwuMa6FRCC72E5a-tvGRQOm=C0YF7bfqA@mail.gmail.com>
2020-04-16 14:43     ` Pacho Ramos
2020-04-17 18:32   ` Cyril Roelandt
2020-04-17 20:06     ` Alan Stern
2020-04-17 22:09       ` Cyril Roelandt
2020-04-19 16:03         ` Alan Stern
2020-04-21  3:01           ` Cyril Roelandt
2020-04-21 13:58             ` Alan Stern
2020-08-15  0:18             ` Cyril Roelandt
2020-08-15  2:19               ` Alan Stern
2020-08-15 23:23                 ` Cyril Roelandt
2020-08-16 16:26                   ` Alan Stern
2020-08-18  4:13                     ` Cyril Roelandt
2020-08-18 14:57                       ` Alan Stern
2020-08-23  1:30                         ` Cyril Roelandt
2020-08-23 14:47                           ` Alan Stern
2020-08-23 18:08                             ` Cyril Roelandt
2020-08-23 22:14                               ` Brice Goglin [this message]
2020-08-24  7:40                               ` Greg KH
2020-08-24 17:31                                 ` [PATCH] Ignore UAS for JMicron JMS567 ATA/ATAPI Bridge Cyril Roelandt
2020-08-24 20:18                                   ` Alan Stern
2020-08-25 21:22                                     ` [PATCH v2] " Cyril Roelandt

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