linux-kernel - Re: [PATCH] media: staging: davinci_vpfe: disallow building with COMPILE

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Date:   Tue, 5 Mar 2019 09:04:46 +0100
From:   Geert Uytterhoeven <geert@...ux-m68k.org>
To:     Arnd Bergmann <arnd@...db.de>
Cc:     Mauro Carvalho Chehab <mchehab@...nel.org>,
        Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
        Mark Brown <broonie@...nel.org>,
        Robin Murphy <robin.murphy@....com>,
        Linux Media Mailing List <linux-media@...r.kernel.org>,
        driverdevel <devel@...verdev.osuosl.org>,
        Linux Kernel Mailing List <linux-kernel@...r.kernel.org>
Subject: Re: [PATCH] media: staging: davinci_vpfe: disallow building with COMPILE_TEST

Hi Arnd,

On Mon, Mar 4, 2019 at 9:30 PM Arnd Bergmann <arnd@...db.de> wrote:
> The driver should really call dm365_isif_setup_pinmux() through a callback,
> but it runs platform specific code by itself, which never actually compiled:
>
> /git/arm-soc/drivers/staging/media/davinci_vpfe/dm365_isif.c:2028:2: error: implicit declaration of function 'davinci_cfg_reg' [-Werror,-Wimplicit-function-declaration]
>         davinci_cfg_reg(DM365_VIN_CAM_WEN);
>         ^
> /git/arm-soc/drivers/staging/media/davinci_vpfe/dm365_isif.c:2028:2: error: this function declaration is not a prototype [-Werror,-Wstrict-prototypes]
> /git/arm-soc/drivers/staging/media/davinci_vpfe/dm365_isif.c:2028:18: error: use of undeclared identifier 'DM365_VIN_CAM_WEN'
>         davinci_cfg_reg(DM365_VIN_CAM_WEN);
>                         ^
> /git/arm-soc/drivers/staging/media/davinci_vpfe/dm365_isif.c:2029:18: error: use of undeclared identifier 'DM365_VIN_CAM_VD'
>         davinci_cfg_reg(DM365_VIN_CAM_VD);
>                         ^
> /git/arm-soc/drivers/staging/media/davinci_vpfe/dm365_isif.c:2030:18: error: use of undeclared identifier 'DM365_VIN_CAM_HD'
>         davinci_cfg_reg(DM365_VIN_CAM_HD);
>                         ^
> /git/arm-soc/drivers/staging/media/davinci_vpfe/dm365_isif.c:2031:18: error: use of undeclared identifier 'DM365_VIN_YIN4_7_EN'
>         davinci_cfg_reg(DM365_VIN_YIN4_7_EN);
>                         ^
> /git/arm-soc/drivers/staging/media/davinci_vpfe/dm365_isif.c:2032:18: error: use of undeclared identifier 'DM365_VIN_YIN0_3_EN'
>         davinci_cfg_reg(DM365_VIN_YIN0_3_EN);
>                         ^
> 7 errors generated.

Which tree and which config is this?
This driver compiles fine with m68k/allmodconfig on v5.0?

Gr{oetje,eeting}s,

                        Geert

-- 
Geert Uytterhoeven -- There's lots of Linux beyond ia32 -- geert@...ux-m68k.org

In personal conversations with technical people, I call myself a hacker. But
when I'm talking to journalists I just say "programmer" or something like that.
                                -- Linus Torvalds