linux-kernel - Re: [PATCH v1 4/5] drm/panthor: Propagate VM-level faults to groups

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Message-ID: <20251215134618.22e92624@fedora>
Date: Mon, 15 Dec 2025 13:46:18 +0100
From: Boris Brezillon <boris.brezillon@...labora.com>
To: Lukas Zapolskas <lukas.zapolskas@....com>
Cc: Liviu Dudau <liviu.dudau@....com>, Maarten Lankhorst
 <maarten.lankhorst@...ux.intel.com>, Maxime Ripard <mripard@...nel.org>,
 Thomas Zimmermann <tzimmermann@...e.de>, David Airlie <airlied@...il.com>,
 Simona Vetter <simona@...ll.ch>, nd@....com,
 dri-devel@...ts.freedesktop.org, linux-kernel@...r.kernel.org
Subject: Re: [PATCH v1 4/5] drm/panthor: Propagate VM-level faults to groups

On Mon, 15 Dec 2025 11:54:56 +0000
Lukas Zapolskas <lukas.zapolskas@....com> wrote:

>  			 group->task_info.pid, group->task_info.comm);
>  
>  		group->fatal_queues |= BIT(cs_id);
> +
> +		if (panthor_vm_has_unhandled_faults(group->vm)) {
> +			struct panthor_vm_fault *fault;
> +
> +			fault = panthor_vm_get_fault(group->vm);
> +			if (fault)
> +				group->fatal = *fault;

group->vm can't be NULL, meaning fault can't be NULL either.

> +		}
>  	}