Re: [RFC][PATCH v3 09/16] genirq/irqdesc: Have nr_irqs as non-static

From: Thomas Gleixner
Date: Tue Sep 16 2025 - 17:16:54 EST


On Tue, Sep 16 2025 at 23:10, Thomas Gleixner wrote:
> On Fri, Sep 12 2025 at 18:08, Eugen Hristev wrote:
>> nr_irqs is required for debugging the kernel, and needs to be
>> accessible for kmemdump into vmcoreinfo.
>
> That's a patently bad idea.
>
> Care to grep how many instances of 'nr_irqs' variables are in the
> kernel?
>
> That name is way too generic to be made global.

Aside of that there is _ZERO_ justification to expose variables globaly,
which have been made file local with a lot of effort in the past.

I pointed you to a solution for that and just because David does not
like it means that it's acceptable to fiddle in subsystems and expose
their carefully localized variables.

Thanks

tglx