linux-kernel - Re: [PATCH 1/5] fbdev/atafb: Remove unused extern variables

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Date:   Tue, 27 Oct 2020 19:44:42 +0100
From:   Daniel Vetter <daniel@...ll.ch>
To:     Peilin Ye <yepeilin.cs@...il.com>
Cc:     Daniel Vetter <daniel.vetter@...ll.ch>,
        Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
        Bartlomiej Zolnierkiewicz <b.zolnierkie@...sung.com>,
        Mike Rapoport <rppt@...nel.org>,
        Andrew Morton <akpm@...ux-foundation.org>,
        dri-devel@...ts.freedesktop.org, linux-fbdev@...r.kernel.org,
        linux-kernel@...r.kernel.org
Subject: Re: [PATCH 1/5] fbdev/atafb: Remove unused extern variables

On Tue, Oct 27, 2020 at 12:31:08PM -0400, Peilin Ye wrote:
> Remove 6 unused extern variables to reduce confusion. It is worth
> mentioning that lib/fonts/font_8x8.c and lib/fonts/font_8x16.c also
> declare `fontdata_8x8` and `fontdata_8x16` respectively, and this file
> has nothing to do with them.
> 
> Signed-off-by: Peilin Ye <yepeilin.cs@...il.com>

This was unused ever since this driver was merged into 2.1.67 (I looked at
historical linux git trees quickly). Save to delete I'd say, probably just
copypasted from some outdated driver template that was even older.

Applied to drm-misc-next.
-Daniel
> ---
> $ # Build-tested (Ubuntu 20.04)
> $ sudo apt install gcc-m68k-linux-gnu
> $ cp arch/m68k/configs/atari_defconfig .config
> $ make ARCH=m68k menuconfig
> $ make ARCH=m68k CROSS_COMPILE=m68k-linux-gnu- -j`nproc` all
> 
>  drivers/video/fbdev/atafb.c | 8 --------
>  1 file changed, 8 deletions(-)
> 
> diff --git a/drivers/video/fbdev/atafb.c b/drivers/video/fbdev/atafb.c
> index f253daa05d9d..e3812a8ff55a 100644
> --- a/drivers/video/fbdev/atafb.c
> +++ b/drivers/video/fbdev/atafb.c
> @@ -240,14 +240,6 @@ static int *MV300_reg = MV300_reg_8bit;
>  
>  static int inverse;
>  
> -extern int fontheight_8x8;
> -extern int fontwidth_8x8;
> -extern unsigned char fontdata_8x8[];
> -
> -extern int fontheight_8x16;
> -extern int fontwidth_8x16;
> -extern unsigned char fontdata_8x16[];
> -
>  /*
>   * struct fb_ops {
>   *	* open/release and usage marking
> -- 
> 2.25.1
> 

-- 
Daniel Vetter
Software Engineer, Intel Corporation
http://blog.ffwll.ch