Re: git: a85dcd4ac4b0 - main - netlink: restrict default userland switch to netlink to i386/amd64.

From: Jessica Clarke <jrtc27_at_freebsd.org>
Date: Sun, 26 Mar 2023 16:45:07 UTC 
On 26 Mar 2023, at 17:17, Ed Maste <emaste@freebsd.org> wrote:
> 
> 
> On Sun, 26 Mar 2023 at 07:07, Alexander V. Chernikov
> <melifaro@freebsd.org> wrote:
>> 
>> The branch main has been updated by melifaro:
>> 
>> URL: https://cgit.FreeBSD.org/src/commit/?id=a85dcd4ac4b0612b63b5a71eeaaa707a09ae0003
>> 
>> commit a85dcd4ac4b0612b63b5a71eeaaa707a09ae0003
>> Author:     Alexander V. Chernikov <melifaro@FreeBSD.org>
>> AuthorDate: 2023-03-26 11:05:21 +0000
>> Commit:     Alexander V. Chernikov <melifaro@FreeBSD.org>
>> CommitDate: 2023-03-26 11:06:53 +0000
>> 
>>    netlink: restrict default userland switch to netlink to i386/amd64.
> 
> We should keep default options the same for all Tier-1 architectures,
> so amd64 and arm64 should be in sync.

But also, what’s the technical justification for this change? There
should not be gratuitous differences between architectures like this,
only when there is a reason something shouldn’t be enabled. Why should
x86 (and possibly arm64) get netlink, but not arm/powerpc/riscv? We
have very few machine-dependent defaults in src.opts.mk. If there is no
such justification then please revert this in its entirety, and if
there is such a justification it belongs in a comment above the if.

Jess