Received-SPF: pass (google.com: domain of linux-kernel-owner@vger.kernel.org designates 2620:137:e000::1:20 as permitted sender) client-ip=2620:137:e000::1:20;
Message-ID: <d65bb452-80ca-7644-c38c-1bc0566661f0@kernel.org>
Date:   Tue, 23 May 2023 09:52:00 +0200
MIME-Version: 1.0
User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:102.0) Gecko/20100101
 Thunderbird/102.10.1
Subject: Re: [PATCH 2/2] serial: cpm_uart: Fix a COMPILE_TEST dependency
Content-Language: en-US
To:     Herve Codina <herve.codina@bootlin.com>,
        Qiang Zhao <qiang.zhao@nxp.com>, Li Yang <leoyang.li@nxp.com>,
        Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Cc:     linuxppc-dev@lists.ozlabs.org,
        linux-arm-kernel@lists.infradead.org, linux-kernel@vger.kernel.org,
        linux-serial@vger.kernel.org, Mark Brown <broonie@kernel.org>,
        Christophe Leroy <christophe.leroy@csgroup.eu>,
        Thomas Petazzoni <thomas.petazzoni@bootlin.com>,
        kernel test robot <lkp@intel.com>
References: <20230522082048.21216-1-herve.codina@bootlin.com>
 <20230522082048.21216-3-herve.codina@bootlin.com>
From:   Jiri Slaby <jirislaby@kernel.org>
In-Reply-To: <20230522082048.21216-3-herve.codina@bootlin.com>
Content-Type: text/plain; charset=UTF-8; format=flowed
Content-Transfer-Encoding: 7bit
Precedence: bulk

On 22. 05. 23, 10:20, Herve Codina wrote:
> In a COMPILE_TEST configuration, the cpm_uart driver uses symbols from
> the cpm_uart_cpm2.c file. This file is compiled only when CONFIG_CPM2 is
> set.
> 
> Without this dependency, the linker fails with some missing symbols for
> COMPILE_TEST configuration that needs SERIAL_CPM without enabling CPM2.
> 
> Signed-off-by: Herve Codina <herve.codina@bootlin.com>
> Reported-by: kernel test robot <lkp@intel.com>
> Link: https://lore.kernel.org/oe-kbuild-all/202305160221.9XgweObz-lkp@intel.com/
> Fixes: e3e7b13bffae ("serial: allow COMPILE_TEST for some drivers")
> ---
>   drivers/tty/serial/Kconfig | 2 +-
>   1 file changed, 1 insertion(+), 1 deletion(-)
> 
> diff --git a/drivers/tty/serial/Kconfig b/drivers/tty/serial/Kconfig
> index 625358f44419..68a9d9db9144 100644
> --- a/drivers/tty/serial/Kconfig
> +++ b/drivers/tty/serial/Kconfig
> @@ -769,7 +769,7 @@ config SERIAL_PMACZILOG_CONSOLE
>   
>   config SERIAL_CPM
>   	tristate "CPM SCC/SMC serial port support"
> -	depends on CPM2 || CPM1 || (PPC32 && COMPILE_TEST)
> +	depends on CPM2 || CPM1 || (PPC32 && CPM2 && COMPILE_TEST)

Actually, does this makes sense? I mean, the last part after "||" is now 
superfluous and doesn't help anything, right?

>   	select SERIAL_CORE
>   	help
>   	  This driver supports the SCC and SMC serial ports on Motorola

-- 
js