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

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Message-ID: <2gzqupa7i7qhiscwm4uin2jmdb6qowp55mzk7w4o3f73ob64e7@taf5vjd7lhc5>
Date: Mon, 8 Sep 2025 09:09:08 +0530
From: Manivannan Sadhasivam <mani@...nel.org>
To: Siddharth Vadapalli <s-vadapalli@...com>
Cc: lpieralisi@...nel.org, kwilczynski@...nel.org, robh@...nel.org, 
	bhelgaas@...gle.com, jingoohan1@...il.com, fan.ni@...sung.com, 
	quic_wenbyao@...cinc.com, namcao@...utronix.de, mayank.rana@....qualcomm.com, 
	thippeswamy.havalige@....com, quic_schintav@...cinc.com, shradha.t@...sung.com, 
	inochiama@...il.com, cassel@...nel.org, kishon@...nel.org, 18255117159@....com, 
	rongqianfeng@...o.com, jirislaby@...nel.org, linux-pci@...r.kernel.org, 
	linux-kernel@...r.kernel.org, linux-arm-kernel@...ts.infradead.org, srk@...com
Subject: Re: [PATCH 00/11] PCI: Keystone: Enable loadable module support

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.

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).

> 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.

- Mani

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