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From: Sebastian Andrzej Siewior <bigeasy@linutronix.de>
To: Runyu Xiao <runyu.xiao@seu.edu.cn>,
	Maarten Lankhorst <dev@lankhorst.se>
Cc: jani.nikula@linux.intel.com, rodrigo.vivi@intel.com,
	joonas.lahtinen@linux.intel.com, tursulin@ursulin.net,
	airlied@gmail.com, simona@ffwll.ch, clrkwllms@kernel.org,
	rostedt@goodmis.org, jerome.anand@intel.com,
	pierre-louis.bossart@linux.dev, tiwai@suse.de,
	intel-gfx@lists.freedesktop.org, intel-xe@lists.freedesktop.org,
	dri-devel@lists.freedesktop.org, linux-kernel@vger.kernel.org,
	linux-rt-devel@lists.linux.dev, jianhao.xu@seu.edu.cn,
	stable@vger.kernel.org
Subject: Re: [PATCH] drm/i915/audio: use generic_handle_irq_safe() for LPE
 audio irq
Message-ID: <20260529074816.k1K16jyy@linutronix.de>
References: <20260528154551.3708290-1-runyu.xiao@seu.edu.cn>
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In-Reply-To: <20260528154551.3708290-1-runyu.xiao@seu.edu.cn>

On 2026-05-28 23:45:51 [+0800], Runyu Xiao wrote:
> intel_lpe_audio_irq_handler() forwards the LPE audio child IRQ from the
> i915 parent IRQ path with generic_handle_irq(). The forwarded child top
> half is not an independent hardirq entry point; it inherits the context
> of the outer i915 interrupt dispatch path.
=E2=80=A6

This looks very familiar and is work in progress
	https://lore.kernel.org/all/20260310115709.2276203-16-dev@lankhorst.se/

Maarten, where do we stand on the i915 series?

> Fixes: eef57324d926 ("drm/i915: setup bridge for HDMI LPE audio driver")
> Cc: stable@vger.kernel.org

No stable fix needed because i915 can not be turned on PREEMPT_RT.

Sebastian