linux-kernel - Re: [PATCH v7 2/4] drm/panthor: Add driver IOCTL for setting BO labels

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Message-ID: <CAPj87rNiKyXTO-+2F71ZKU9rTjYfeLKvxxd2bGwZo7tZ=3tjvg@mail.gmail.com>
Date: Tue, 15 Apr 2025 12:07:56 +0100
From: Daniel Stone <daniel@...ishbar.org>
To: Adrián Larumbe <adrian.larumbe@...labora.com>
Cc: "To : Boris Brezillon" <boris.brezillon@...labora.com>, Steven Price <steven.price@....com>, 
	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>, 
	Sumit Semwal <sumit.semwal@...aro.org>, Christian König <christian.koenig@....com>, 
	kernel@...labora.com, dri-devel@...ts.freedesktop.org, 
	linux-kernel@...r.kernel.org, linux-media@...r.kernel.org, 
	linaro-mm-sig@...ts.linaro.org
Subject: Re: [PATCH v7 2/4] drm/panthor: Add driver IOCTL for setting BO labels

Hi,

On Fri, 11 Apr 2025 at 16:05, Adrián Larumbe
<adrian.larumbe@...labora.com> wrote:
> +#define PANTHOR_BO_LABEL_MAXLEN        PAGE_SIZE

PAGE_SIZE can change between kernel builds with a config setting.

If the thinking here is '4KiB is big enough' (which I agree with),
then just define it to 4096.

Cheers,
Daniel