linux-kernel - Re: [PATCH v4 1/4] uapi: Provide DIV_ROUND

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Message-ID: <1b66343c76e5b66c696c1fd8a148df299cce60dd.camel@collabora.com>
Date: Mon, 26 Jan 2026 15:33:11 -0300
From: Nícolas "F. R. A. Prado" <nfraprado@...labora.com>
To: Cristian Ciocaltea <cristian.ciocaltea@...labora.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>, Sandy Huang	 <hjc@...k-chips.com>, Heiko
 Stübner <heiko@...ech.de>,  Andy Yan
 <andy.yan@...k-chips.com>, Louis Chauvet <louis.chauvet@...tlin.com>,
 Haneen Mohammed	 <hamohammed.sa@...il.com>, Melissa Wen
 <melissa.srw@...il.com>
Cc: Robert Mader <robert.mader@...labora.com>, kernel@...labora.com, 
	dri-devel@...ts.freedesktop.org, linux-kernel@...r.kernel.org, 
	linux-arm-kernel@...ts.infradead.org, linux-rockchip@...ts.infradead.org
Subject: Re: [PATCH v4 1/4] uapi: Provide DIV_ROUND_CLOSEST()

On Fri, 2025-12-19 at 23:46 +0200, Cristian Ciocaltea wrote:
> Currently DIV_ROUND_CLOSEST() is only available for the kernel via
> include/linux/math.h.
> 
> Expose it to userland as well by adding __KERNEL_DIV_ROUND_CLOSEST()
> as
> a common definition in uapi.
> 
> Additionally, ensure it allows building ISO C applications by
> switching
> from the 'typeof' GNU extension to the ISO-friendly __typeof__.
> 
> Signed-off-by: Cristian Ciocaltea <cristian.ciocaltea@...labora.com>

Reviewed-by: Nícolas F. R. A. Prado <nfraprado@...labora.com>

-- 
Thanks,

Nícolas