linux-kernel - Re: [PATCH] drm/exynos: fix g2d_open/close helper function definitions

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Date:   Tue, 25 Apr 2023 18:56:18 +0200
From:   Andi Shyti <andi.shyti@...nel.org>
To:     Arnd Bergmann <arnd@...nel.org>
Cc:     Inki Dae <inki.dae@...sung.com>,
        Seung-Woo Kim <sw0312.kim@...sung.com>,
        Kyungmin Park <kyungmin.park@...sung.com>,
        David Airlie <airlied@...il.com>,
        Daniel Vetter <daniel@...ll.ch>,
        linux-samsung-soc@...r.kernel.org, Arnd Bergmann <arnd@...db.de>,
        linux-kernel@...r.kernel.org, dri-devel@...ts.freedesktop.org,
        Krzysztof Kozlowski <krzysztof.kozlowski@...aro.org>,
        Alim Akhtar <alim.akhtar@...sung.com>,
        linux-arm-kernel@...ts.infradead.org,
        Marek Szyprowski <m.szyprowski@...sung.com>
Subject: Re: [PATCH] drm/exynos: fix g2d_open/close helper function
 definitions

Hi Arnd,

On Mon, Apr 17, 2023 at 11:04:11PM +0200, Arnd Bergmann wrote:
> From: Arnd Bergmann <arnd@...db.de>
> 
> The empty stub functions are defined as global functions, which
> causes a warning because of missing prototypes:
> 
> drivers/gpu/drm/exynos/exynos_drm_g2d.h:37:5: error: no previous prototype for 'g2d_open'
> drivers/gpu/drm/exynos/exynos_drm_g2d.h:42:5: error: no previous prototype for 'g2d_close'
> 
> Mark them as 'static inline' to avoid the warning and to make
> them behave as intended.
> 
> Fixes: eb4d9796fa34 ("drm/exynos: g2d: Convert to driver component API")
> Signed-off-by: Arnd Bergmann <arnd@...db.de>

Cc: <stable@...r.kernel.org> # v4.19+

Reviewed-by: Andi Shyti <andi.shyti@...nel.org> 

Thanks,
Andi