Date:   Thu, 9 Mar 2023 17:17:41 +0100
From:   Greg Kroah-Hartman <gregkh@linuxfoundation.org>
To:     Nick Alcock <nick.alcock@oracle.com>
Cc:     mcgrof@kernel.org, linux-modules@vger.kernel.org,
        linux-kernel@vger.kernel.org,
        Hitomi Hasegawa <hasegawa-hitomi@fujitsu.com>,
        Manivannan Sadhasivam <mani@kernel.org>,
        Jiri Slaby <jirislaby@kernel.org>,
        linux-arm-kernel@lists.infradead.org,
        linux-unisoc@lists.infradead.org, linux-serial@vger.kernel.org
Subject: Re: [PATCH 21/24] kbuild, serial: remove MODULE_LICENSE in
 non-modules
Message-ID: <ZAoGpW+TnpRPMRdR@kroah.com>
References: <20230217141059.392471-1-nick.alcock@oracle.com>
 <20230217141059.392471-22-nick.alcock@oracle.com>
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On Fri, Feb 17, 2023 at 02:10:56PM +0000, Nick Alcock wrote:
> Since commit 8b41fc4454e ("kbuild: create modules.builtin without
> Makefile.modbuiltin or tristate.conf"), MODULE_LICENSE declarations
> are used to identify modules. As a consequence, uses of the macro
> in non-modules will cause modprobe to misidentify their containing
> object file as a module when it is not (false positives), and modprobe
> might succeed rather than failing with a suitable error message.
> 
> So remove it in the files in this commit, none of which can be built as
> modules.
> 
> Signed-off-by: Nick Alcock <nick.alcock@oracle.com>
> Suggested-by: Luis Chamberlain <mcgrof@kernel.org>
> Cc: Luis Chamberlain <mcgrof@kernel.org>
> Cc: linux-modules@vger.kernel.org
> Cc: linux-kernel@vger.kernel.org
> Cc: Hitomi Hasegawa <hasegawa-hitomi@fujitsu.com>
> Cc: Manivannan Sadhasivam <mani@kernel.org>
> Cc: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
> Cc: Jiri Slaby <jirislaby@kernel.org>
> Cc: linux-arm-kernel@lists.infradead.org
> Cc: linux-unisoc@lists.infradead.org
> Cc: linux-serial@vger.kernel.org
> ---
>  drivers/tty/serial/rda-uart.c | 1 -
>  1 file changed, 1 deletion(-)
> 
> diff --git a/drivers/tty/serial/rda-uart.c b/drivers/tty/serial/rda-uart.c
> index be5c842b5ba9..c3b29d124759 100644
> --- a/drivers/tty/serial/rda-uart.c
> +++ b/drivers/tty/serial/rda-uart.c
> @@ -825,4 +825,3 @@ module_exit(rda_uart_exit);
>  
>  MODULE_AUTHOR("Manivannan Sadhasivam <manivannan.sadhasivam@linaro.org>");
>  MODULE_DESCRIPTION("RDA8810PL serial device driver");
> -MODULE_LICENSE("GPL");

No, this should be fine, either force remove all MODULE_* macros from
built-in code, or none.

thanks,

greg k-h