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Date:   Wed, 20 Dec 2017 19:59:52 +0100
From:   Thierry Reding <>
To:     Arnd Bergmann <>
Cc:     David Airlie <>,
        Jonathan Hunter <>,
        Daniel Vetter <>,,,
Subject: Re: [PATCH] drm/tegra: fix non-debugfs builds

On Mon, Dec 18, 2017 at 02:44:46PM +0100, Arnd Bergmann wrote:
> The new debugfs registration fails to build when CONFIG_DEBUGFS is
> disabled, because the drm_crtc structure is lacking a member in that
> configuration:
> drivers/gpu/drm/tegra/dc.c: In function 'tegra_dc_late_register':
> drivers/gpu/drm/tegra/dc.c:1204:28: error: 'struct drm_crtc' has no member named 'debugfs_entry'
> Without CONFIG_DEBUGFS, the rest of the function already degrades
> into nothing, so we just avoid the one assignment.
> Fixes: b95800eeef09 ("drm/tegra: dc: Register debugfs in ->late_register()")
> Signed-off-by: Arnd Bergmann <>
> ---
>  drivers/gpu/drm/tegra/dc.c | 8 +++++++-
>  1 file changed, 7 insertions(+), 1 deletion(-)

I don't think I replied, but I had applied this yesterday, so this
should be fixed in linux-next today.


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