Re: [Qemu-devel] [PATCH 18/18] usb: add ehci adapter

[David Ahern <daahern@cisco.com>]

On 05/17/11 01:20, Gerd Hoffmann wrote:
>> On 05/16/11 13:56, Gerd Hoffmann wrote:
>>> This patch finally merges the EHCI host adapter aka USB 2.0 support.
>>>
>>> Based on git://git.kiszka.org/qemu.git ehci
>>>
>>> Changes:
>>>    - Adapt to recent changes in the usb subsystem.
>>>    - Don't create device automagically, use -device instead.
>>>    - Add quickstart text file, see docs/usb2.txt.
>>>    - A bunch of codestyle fixups.
>>>    - Add authors+contributers list.
>>>    - Zap EHCI_NOMICROFRAMES, qemu can't handle a 8 kHz
>>>      wakeup rate anyway.
>>>    - A few bug fixes.
>>>
>>> Signed-off-by: Gerd Hoffmann<kraxel@redhat.com>
>>
>> As someone who spent a significant amount of time working on the EHCI
>> code last year I am absolutely not ok with this. The entire contribution
>> history for EHCI lost - and for no reason.
> 
> There is a reason.  I've tried to keep the history, but it was a big
> mess with conflicts and build errors due to ehci being out-of-tree for a
> loooooong time.

Not true. Back in March it took me less 2-1/2 hours to see a request for
a 0.14 version, update my git repo, merge master onto ehci, fix merges,
test and send out:

http://comments.gmane.org/gmane.comp.emulators.kvm.devel/68898

Again, most of the changes are to the EHCI code. The rest are
sprinklings to add the adapter and adhere to USB API.

> 
>> The inclusion of EHCI into
>> qemu can be done in such a way as to maintain the history.
> 
> Prove it.  Give me a git tree with ehci history I can use as replacement
> for patch 18 and I'll pull it in.

Jan's tree that was started for the EHCI development. That's my repo
locally is based on. You chose to not work with it or even get a pull
request to pull in the patches. Instead you opted to pick up the code
and plop into your repo.

David

> 
> cheers,
>   Gerd