Re: [PATCH 00/11] PCI: Keystone: Enable loadable module support

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On Mon, Sep 08, 2025 at 09:09:08AM +0530, Manivannan Sadhasivam wrote:
> On Wed, Sep 03, 2025 at 06:14:41PM GMT, Siddharth Vadapalli wrote:
> > Hello,
> > 
> > This series enables support for the 'pci-keystone.c' driver to be built
> > as a loadable module. The motivation for the series is that PCIe is not
> > a necessity for booting Linux due to which the 'pci-keystone.c' driver
> > does not need to be built-in.
> > 
> 
> There are concerns from the irqchip maintainers that unloading an irqchip
> controller is a bad idea. We had a lot of previous discussions on this topic.

Ok, I wasn't aware of this. Thank you for pointing this out.

> 
> But I would certainly welcome the idea of building a controller driver as a
> module (tristate) and prevent unloading it during runtime (by keeping it as
> builtin_platform_driver).

I will update the series to retain 'builtin_platform_driver' while
enabling tristate support. Since the intent of the series is primarily
to convert the driver to support being built as a loadable module, and
unloading it is only a secondary requirement which is optional, I agree
with your suggestion.

> 
> > Series is based on linux-next tagged next-20250903.
> > 
> 
> No need to base your patches on top of linux-next. Either do it on top of -rc1
> or pci/next.

I will keep this in mind when I post the v2 series.

Thank you for your feedback.

Regards,
Siddharth.




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