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Subject: Re: [PATCH v2 0/4] fpga: reorganize to subdirs
To:     Greg KH <gregkh@linuxfoundation.org>
Cc:     mdf@kernel.org, hao.wu@intel.com, michal.simek@xilinx.com,
        nava.manne@xilinx.com, dinguyen@kernel.org,
        krzysztof.kozlowski@canonical.com, yilun.xu@intel.com,
        arnd@arndb.de, fpacheco@redhat.com, richard.gong@intel.com,
        luca@lucaceresoli.net, linux-kernel@vger.kernel.org,
        linux-fpga@vger.kernel.org, linux-arm-kernel@lists.infradead.org
References: <20210609142208.3085451-1-trix@redhat.com>
 <YMDV7R52QUTFhpHH@kroah.com>
 <2738ee7a-448f-c327-c430-13fb44da45ec@redhat.com>
 <YMDueTEHGWuAcknP@kroah.com>
From:   Tom Rix <trix@redhat.com>
Message-ID: <a35f5fda-a202-dc66-4445-b3ce333a55e6@redhat.com>
Date:   Wed, 9 Jun 2021 09:50:39 -0700
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On 6/9/21 9:38 AM, Greg KH wrote:
> On Wed, Jun 09, 2021 at 08:08:06AM -0700, Tom Rix wrote:
>> On 6/9/21 7:53 AM, Greg KH wrote:
>>> On Wed, Jun 09, 2021 at 07:22:03AM -0700, trix@redhat.com wrote:
>>>> From: Tom Rix <trix@redhat.com>
>>>>
>>>> The incoming xrt patchset has a toplevel subdir xrt/
>>>> The current fpga/ uses a single dir with filename prefixes to subdivide owners
>>>> For consistency, there should be only one way to organize the fpga/ dir.
>>>> Because the subdir model scales better, refactor to use it.
>>>> The discussion wrt xrt is here:
>>>> https://lore.kernel.org/linux-fpga/68e85a4f-4a10-1ff9-0443-aa565878c855@redhat.com/
>>>>
>>>> Follow drivers/net/ethernet/ which has control configs
>>>> NET_VENDOR_BLA that map to drivers/net/ethernet/bla
>>>> Since fpgas do not have many vendors, drop the 'VENDOR' and use
>>>> FPGA_BLA.
>>>>
>>>> There are several new subdirs
>>>> altera/
>>>> dfl/
>>>> lattice/
>>>> xilinx/
>>>>
>>>> Each subdir has a Kconfig that has a new/reused
>>>>
>>>> if FPGA_BLA
>>>>     ... existing configs ...
>>>> endif FPGA_BLA
>>>>
>>>> Which is sourced into the main fpga/Kconfig
>>>>
>>>> Each subdir has a Makefile whose transversal is controlled in the
>>>> fpga/Makefile by
>>>>
>>>> obj-$(CONFIG_FPGA_BLA) += bla/
>>>>
>>>> Some cleanup to arrange thing alphabetically and make fpga/Makefile's
>>>> whitespace look more like net/'s
>>>>
>>>> Changes from
>>>> v1
>>>>     Drop renaming files
>>>>     Cleanup makefiles
>>> You can rename the files, you just can not rename the .ko objects
>>> without everyone knowing what you are doing and you trying to bury it in
>>> the middle of a differently described patch.
>>>
>>> If you want to do that, do you?  I don't really understand why you want
>>> to move things around right now other than "we have 40 files in one
>>> directory, ick!".
>> I am trying to resolve the layout inconsistency between what we have and
>> what the xrt patchset does.
> Why does it matter?  New stuff can be added to a new dir, why worry
> about old stuff?  What does it hurt?
>
>> The big issue is the files vs dirs.
>>
>> Over specified filenames is secondary, so I dropped them.
>>
>> 40 files in one dir is itself not a problem.
>>
>> having 40 files and an xrt/ is.
> Why is that a "problem"?
>
>> fpga/ layout should be consistent so the Makefile and Kconfig are easier to
>> maintain.
> Is it somehow hard to maintain today?  Seems pretty trivial to me...

This change was to help move xrt along.

If you are fine with xrt/, I will drop this patchset.

Tom

>
> thanks,
>
> greg k-h
>