Re: [Qemu-devel] [PATCH v3 2/2] bitops: fix types

[Blue Swirl <blauwirbel@gmail.com>]

On Tue, Jul 24, 2012 at 9:26 AM, Markus Armbruster <armbru@redhat.com> wrote:
> Peter Maydell <peter.maydell@linaro.org> writes:
>
>> On 23 July 2012 18:33, Blue Swirl <blauwirbel@gmail.com> wrote:
>>> I'm getting a strong feeling that it's a bad idea to reuse any Linux
>>> kernel sources since they are seen as divine and untouchable, unlike
>>> for example BSD queue macros.
>
> Reusing good code that solves the problem at hand can be a bad idea if
> you can't resist the temptation to tinker with it, yet can't be bothered
> to upstream your improvements.  Then you might as well build your own
> bikeshed from scratch :)

There's nothing wrong in tinkering with reused good code. As I
explained, there's little point to upstream these changes, so 'not
bothering' is false accusation.

>
>> We should also try to avoid deviations in our queue macros,
>
> Agree.

Avoiding "deviations" can be secondary to many other needs.

>
>> and I think we do (eg commit 6095aa8 added functionality by
>> moving us closer into sync with the BSD macros rather than
>> by reinventing the wheel which was IIRC what the initial pre-code-review
>> patch did).