[Bug 213081] New: usb-storage / uas Genesys Logic Card Reader no longer working on 5.12

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https://bugzilla.kernel.org/show_bug.cgi?id=213081

            Bug ID: 213081
           Summary: usb-storage / uas Genesys Logic Card Reader no longer
                    working on 5.12
           Product: Drivers
           Version: 2.5
    Kernel Version: 5.12.4
          Hardware: All
                OS: Linux
              Tree: Mainline
            Status: NEW
          Severity: normal
          Priority: P1
         Component: USB
          Assignee: drivers_usb@xxxxxxxxxxxxxxxxxxxxxx
          Reporter: peter.ganzhorn@xxxxxxxxxxxxxx
        Regression: No

Created attachment 296763
  --> https://bugzilla.kernel.org/attachment.cgi?id=296763&action=edit
dmesg log after plugging in card reader and inserting card

Hello,

my USB SD card reader is no longer working with Linux 5.12.
Up to Linux 5.11.21 the device is working flawlessly.

T:  Bus=06 Lev=03 Prnt=03 Port=00 Cnt=01 Dev#=  4 Spd=5000 MxCh= 0
D:  Ver= 3.00 Cls=00(>ifc ) Sub=00 Prot=00 MxPS= 9 #Cfgs=  1
P:  Vendor=05e3 ProdID=0749 Rev=15.31
S:  Manufacturer=Generic
S:  Product=USB3.0 Card Reader
S:  SerialNumber=000000001531
C:  #Ifs= 1 Cfg#= 1 Atr=80 MxPwr=896mA
I:  If#=0x0 Alt= 0 #EPs= 2 Cls=08(stor.) Sub=06 Prot=50 Driver=usb-storage

It is integrated in my display and probably made by Genesys Logic (display type
is Benq PD3200U).

My system is a x86_64 (Intel Haswell).

After inserting a SD card into the reader usb-devices output hangs when
accessing the device.
Also reading data from a inserted SD card is not possible (e.g. cfdisk /dev/sdb
will hang forever).

I've attached my dmesg output. It begins after plugging in the USB cable into
the display and the hub and card reader being detected. After this I inserted a
SD card into the reader and tried to run cfdisk.

I've tried multiple cards and the result is the same with all of them. All the
cards are working with the same reader and Linux 5.11.21.
Another USB card reader (Realtek VID 0x0BDA PID 0x0301) I own works without any
issues with 5.12.

Some change after Linux 5.11 must have broken the support for this card reader.

Please tell me if I can provide further information to investigate and fix the
issue.

Peter

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