linux-kernel - Re: [PATCH 06/18] drm: use ARRAY

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Message-ID: <20171002082703.GA24250@ulmo>
Date:   Mon, 2 Oct 2017 10:27:03 +0200
From:   Thierry Reding <thierry.reding@...il.com>
To:     Jérémy Lefaure <jeremy.lefaure@....epita.fr>
Cc:     Alex Deucher <alexander.deucher@....com>,
        Christian König <christian.koenig@....com>,
        David Airlie <airlied@...ux.ie>,
        Patrik Jakobsson <patrik.r.jakobsson@...il.com>,
        Zhenyu Wang <zhenyuw@...ux.intel.com>,
        Zhi Wang <zhi.a.wang@...el.com>,
        Jani Nikula <jani.nikula@...ux.intel.com>,
        Joonas Lahtinen <joonas.lahtinen@...ux.intel.com>,
        Rodrigo Vivi <rodrigo.vivi@...el.com>,
        Ben Skeggs <bskeggs@...hat.com>, amd-gfx@...ts.freedesktop.org,
        dri-devel@...ts.freedesktop.org, linux-kernel@...r.kernel.org,
        intel-gvt-dev@...ts.freedesktop.org,
        intel-gfx@...ts.freedesktop.org, nouveau@...ts.freedesktop.org
Subject: Re: [PATCH 06/18] drm: use ARRAY_SIZE

On Sun, Oct 01, 2017 at 03:30:44PM -0400, Jérémy Lefaure wrote:
> Using the ARRAY_SIZE macro improves the readability of the code. Also,
> it is not always useful to use a variable to store this constant
> calculated at compile time nor to re-invent the ARRAY_SIZE macro.
> 
> Found with Coccinelle with the following semantic patch:
> @r depends on (org || report)@
> type T;
> T[] E;
> position p;
> @@
> (
>  (sizeof(E)@p /sizeof(*E))
> |
>  (sizeof(E)@p /sizeof(E[...]))
> |
>  (sizeof(E)@p /sizeof(T))
> )
> 
> Signed-off-by: Jérémy Lefaure <jeremy.lefaure@....epita.fr>
> ---
>  drivers/gpu/drm/amd/amdgpu/gfx_v8_0.c           |  9 +++++----
>  drivers/gpu/drm/amd/amdgpu/gfx_v9_0.c           |  9 +++++----
>  drivers/gpu/drm/gma500/psb_intel_sdvo.c         |  9 ++++-----
>  drivers/gpu/drm/i915/gvt/vgpu.c                 |  3 ++-
>  drivers/gpu/drm/nouveau/nvkm/subdev/bios/init.c |  7 ++++---
>  drivers/gpu/drm/via/via_verifier.c              | 10 ++++------
>  6 files changed, 24 insertions(+), 23 deletions(-)

Reviewed-by: Thierry Reding <treding@...dia.com>

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