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From:   Javier Martinez Canillas <javierm@redhat.com>
To:     Thomas Zimmermann <tzimmermann@suse.de>, deller@gmx.de,
        sam@ravnborg.org, arnd@arndb.de, rdunlap@infradead.org,
        glaubitz@physik.fu-berlin.de
Cc:     linux-fbdev@vger.kernel.org, dri-devel@lists.freedesktop.org,
        linux-kernel@vger.kernel.org, oe-kbuild-all@lists.linux.dev,
        Thomas Zimmermann <tzimmermann@suse.de>,
        kernel test robot <lkp@intel.com>
Subject: Re: [PATCH] fbdev/sh7760fb: Depend on FB=y
In-Reply-To: <20230918090400.13264-1-tzimmermann@suse.de>
References: <20230918090400.13264-1-tzimmermann@suse.de>
Date:   Mon, 18 Sep 2023 11:30:54 +0200
Message-ID: <87o7hz4ylt.fsf@minerva.mail-host-address-is-not-set>
MIME-Version: 1.0
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Thomas Zimmermann <tzimmermann@suse.de> writes:

Hello Thomas,

> Fix linker error if FB=m about missing fb_io_read and fb_io_write. The
> linker's error message suggests that this config setting has already
> been broken for other symbols.
>
>   All errors (new ones prefixed by >>):
>
>      sh4-linux-ld: drivers/video/fbdev/sh7760fb.o: in function `sh7760fb_probe':
>      sh7760fb.c:(.text+0x374): undefined reference to `framebuffer_alloc'
>      sh4-linux-ld: sh7760fb.c:(.text+0x394): undefined reference to `fb_videomode_to_var'
>      sh4-linux-ld: sh7760fb.c:(.text+0x39c): undefined reference to `fb_alloc_cmap'
>      sh4-linux-ld: sh7760fb.c:(.text+0x3a4): undefined reference to `register_framebuffer'
>      sh4-linux-ld: sh7760fb.c:(.text+0x3ac): undefined reference to `fb_dealloc_cmap'
>      sh4-linux-ld: sh7760fb.c:(.text+0x434): undefined reference to `framebuffer_release'
>      sh4-linux-ld: drivers/video/fbdev/sh7760fb.o: in function `sh7760fb_remove':
>      sh7760fb.c:(.text+0x800): undefined reference to `unregister_framebuffer'
>      sh4-linux-ld: sh7760fb.c:(.text+0x804): undefined reference to `fb_dealloc_cmap'
>      sh4-linux-ld: sh7760fb.c:(.text+0x814): undefined reference to `framebuffer_release'
>   >> sh4-linux-ld: drivers/video/fbdev/sh7760fb.o:(.rodata+0xc): undefined reference to `fb_io_read'
>   >> sh4-linux-ld: drivers/video/fbdev/sh7760fb.o:(.rodata+0x10): undefined reference to `fb_io_write'
>      sh4-linux-ld: drivers/video/fbdev/sh7760fb.o:(.rodata+0x2c): undefined reference to `cfb_fillrect'
>      sh4-linux-ld: drivers/video/fbdev/sh7760fb.o:(.rodata+0x30): undefined reference to `cfb_copyarea'
>      sh4-linux-ld: drivers/video/fbdev/sh7760fb.o:(.rodata+0x34): undefined reference to `cfb_imageblit'
>
> Suggested-by: Randy Dunlap <rdunlap@infradead.org>
> Reported-by: kernel test robot <lkp@intel.com>
> Closes: https://lore.kernel.org/oe-kbuild-all/202309130632.LS04CPWu-lkp@intel.com/
> Signed-off-by: Thomas Zimmermann <tzimmermann@suse.de>
> ---

Agreed with your change.

Reviewed-by: Javier Martinez Canillas <javierm@redhat.com>

-- 
Best regards,

Javier Martinez Canillas
Core Platforms
Red Hat