linux-kernel - Re: [PATCH] gpio: ljca: Fix duplicated IRQ mapping

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Message-ID: <aPnr66W9J_VnpYgE@smile.fi.intel.com>
Date: Thu, 23 Oct 2025 11:48:43 +0300
From: Andy Shevchenko <andriy.shevchenko@...ux.intel.com>
To: Bartosz Golaszewski <brgl@...ev.pl>
Cc: Haotian Zhang <vulab@...as.ac.cn>, Lixu Zhang <lixu.zhang@...el.com>,
	Sakari Ailus <sakari.ailus@...ux.intel.com>,
	Linus Walleij <linus.walleij@...aro.org>,
	linux-gpio@...r.kernel.org, linux-kernel@...r.kernel.org
Subject: Re: [PATCH] gpio: ljca: Fix duplicated IRQ mapping

On Thu, Oct 23, 2025 at 10:09:05AM +0200, Bartosz Golaszewski wrote:
> On Thu, Oct 23, 2025 at 9:02 AM Haotian Zhang <vulab@...as.ac.cn> wrote:
> >
> > The generic_handle_domain_irq() function resolves the hardware IRQ
> > internally. The driver performed a duplicative mapping by calling
> > irq_find_mapping() first, which could lead to an RCU stall.
> >
> > Delete the redundant irq_find_mapping() call and pass the hardware IRQ
> > directly to generic_handle_domain_irq().
> 
> Andy: this looks correct to me and you already sent your PR with
> fixes, should I take it directly into my fixes tree for v6.18-rc3?

Yes, please. This driver is out of my scope, it should have its own maintainers
(from Intel). If not, I may rise this problem internally.

-- 
With Best Regards,
Andy Shevchenko