linux-kernel - Re: [PATCH] Revert "serdev: simplify Makefile"

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Date:   Wed, 18 Dec 2019 15:00:16 +0100
From:   Greg Kroah-Hartman <gregkh@...uxfoundation.org>
To:     Johan Hovold <johan@...nel.org>
Cc:     Uwe Kleine-König 
        <u.kleine-koenig@...gutronix.de>, Rob Herring <robh@...nel.org>,
        Jiri Slaby <jslaby@...e.com>, linux-serial@...r.kernel.org,
        linux-kernel@...r.kernel.org, kbuild test robot <lkp@...el.com>
Subject: Re: [PATCH] Revert "serdev: simplify Makefile"

On Wed, Dec 18, 2019 at 02:11:54PM +0100, Johan Hovold wrote:
> This reverts commit 54edb425346a4d5e17f7e54e8c97c0d0eac26315.
> 
> The offending commit caused serdev core to always be built-in, something
> which breaks the build of dependent modules when serdev is being built
> as a module:
> 
> ERROR: "__serdev_device_driver_register" [drivers/gnss/gnss-ubx.ko] undefined!
> ...
> make[2]: *** [/home/johan/work/omicron/src/linux/scripts/Makefile.modpost:94: __modpost] Error 1
> 
> Reported-by: kbuild test robot <lkp@...el.com>
> Signed-off-by: Johan Hovold <johan@...nel.org>
> ---
>  drivers/tty/serdev/Makefile | 2 +-
>  1 file changed, 1 insertion(+), 1 deletion(-)

Heh, give me a chance to catch up here, I would have reverted it on my
own :)

I'll go queue this up now, thanks.

greg k-h