Re: vendor imports beyond the committers guide?

On Wed, 6 Mar 2024, Warner Losh wrote:

> On Wed, Mar 6, 2024 at 10:19 AM Bjoern A. Zeeb <bz@freebsd.org> wrote:
>
>> On Wed, 6 Mar 2024, Warner Losh wrote:
>>
>>> On Wed, Mar 6, 2024 at 8:59 AM Gleb Smirnoff <glebius@freebsd.org>
>> wrote:
>>>
>>>>   Bjoern,
>>>>
>>>> On Wed, Mar 06, 2024 at 12:37:07AM +0000, Bjoern A. Zeeb wrote:
>>>> B> > These details likely need to be documented, but what's the details
>>>> here that
>>>> B> > you need to do?
>>>> B>
>>>> B> I may want to track the (unchanged) versions of the LinuxKPI based
>> wifi
>>>> drivers
>>>> B> in sys/contrib/dev so we can more easily diff against the latest
>>>> upstream
>>>> B> import and ship changes back etc.
>>>>
>>>> Can you please give an example, e.g. this the the directory in our tree
>> and
>>>> this is the origin we want to make the vendor import from.  I will
>>>> experiment
>>>> and produce a sequence of git commands you'd need to do to make proper
>>>> subtree import. Warner will check me :)
>>>>
>>>
>>> He wants to do this with the Linux drivers we have in the tree...
>>>
>>> So we should get the version he started with, import that into the vendor
>>> branch (for each driver, since they are separately released and
>> versioned).
>>> Once we do that, we can do a subtree merge, but we may have to jump
>> through
>>> some hoops so we wind up back to the current files. I have ideas how to
>> do
>>> this, but haven't done it yet. Once we have those, we can switch to
>> updating
>>> them via the standard vendor import stuff....
>>>
>>> So I know I skipped an email in this change... if you, Bjorn, have the
>>> files / pointers
>>> or whatever that you started with, I can import those, do the merge, then
>>> we can look
>>> at updating. I'm hoping the number of changes are relatively small...
>>
>> I can probably produce (for each driver) a set of the original
>> unmodified files which then went into FreeBSD with modifications
>> if we do need the entire history and not just the set from the latest
>> import?
>>
>
> How many versions are there?

- iwlwifi I think it is 5 full versions (and 3 or 4 "remote cherry picks" in
   between in case it matters)

- rtw88 probably 3 versions

- the others {rtw89, ath10k, ath11k, ath12k, mt76} I think it was only 2 each.



-- 
Bjoern A. Zeeb                                                     r15:7