Re: [PATCH v7] usbip: make remote list honor parsable output

[Shuah Khan <skhan@linuxfoundation.org>]

On 10/1/26 06:49, Shuah Khan wrote:
> On 9/26/26 22:00, Jason Colapietro wrote:
>> Hi Shuah and all,
>>
>> The exact v7 patch has now been built and tested with a native Linux
>> USB/IP stack.
>>
>> Test setup: Alpine Linux 3.23.4 on aarch64, kernel 6.18.53-0-lts,
>> usbip-utils 2.0. A QEMU USB mass-storage device (46f4:0001, busid 2-1)
>> was bound to usbip-host and exported by usbipd. The client connected
>> to 127.0.0.1:3240.
>>
>> With the unpatched client, "usbip list -p -r 127.0.0.1" still printed
>> the human-readable "Exportable USB devices" report, reproducing the
>> bug. With the v7 client, the same command returned:
>>
>>      busid=2-1#usbid=46f4:0001#
>>
>> "usbip list -r 127.0.0.1" retained its human-readable output,
>> including the device path and interface details. After unbinding the
>> device, the parsable command exited successfully with zero bytes on
>> stdout; rebinding restored the record.
>>
>> I also attached busid 2-1 through the v7 client. "usbip port" showed
>> it imported through vhci_hcd at port 08, and lsusb showed the device
>> on both the original and virtual host buses. Detach succeeded, leaving
>> no imported port. The build, list, attach, and detach commands all
>> exited successfully.
>>
>> This was one Linux VM with an emulated USB device and TCP loopback. I
>> have not tested physical USB hardware or two separate machines. The
>> existing option-order behavior is unchanged: -p must precede -r.
> 
> Please test this with two systems hots running on one and client on the
> other. Send me before and after output that shows the bug and that it is
> fixed by your change.

Another thing. This needs to be reproduced and tested on the latest kenel,
Linux 7.3-rc5

thanks,
-- Shuah