linux-kernel - [PATCH] ASoC: ti: rename CONFIG_SND_SOC_DM365_VOICE_CODEC

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Message-Id: <20210901164009.1546967-1-masahiroy@kernel.org>
Date:   Thu,  2 Sep 2021 01:40:09 +0900
From:   Masahiro Yamada <masahiroy@...nel.org>
To:     ALSA Development Mailing List <alsa-devel@...a-project.org>
Cc:     P«±ter Ujfalusi <peter.ujfalusi@...il.com>,
        Arnd Bergmann <arnd@...db.de>,
        Masahiro Yamada <masahiroy@...nel.org>,
        Jaroslav Kysela <perex@...ex.cz>,
        Liam Girdwood <lgirdwood@...il.com>,
        Mark Brown <broonie@...nel.org>, Takashi Iwai <tiwai@...e.com>,
        linux-kernel@...r.kernel.org
Subject: [PATCH] ASoC: ti: rename CONFIG_SND_SOC_DM365_VOICE_CODEC_MODULE

Kconfig generates include/generated/autoconf.h to make CONFIG options
available to the pre-processor. Symbols with the value 'm' are suffixed
with '_MODULE'

Here is a conflict; CONFIG_FOO=m results in '#define CONFIG_FOO_MODULE 1',
but CONFIG_FOO_MODULE=y also results in the same define.

Also, CONFIG options that end with '_MODULE' confuse the Kconfig/fixdep
interaction; fixdep always assumes CONFIG_FOO_MODULE comes from
CONFIG_FOO=m, so the dependency is not properly tracked for symbols
that end with '_MODULE'.

For these reasons, CONFIG options that end with '_MODULE' should be
avoided in general. (I am planning on adding a check in Kconfig.)

This is the only case in the current kernel.

The new option name was suggested by PÃ©ter Ujfalusi. [1]

[1] https://lore.kernel.org/all/d9e777dc-d274-92ee-4d77-711bfd553611@gmail.com/

Fixes: 147162f57515 ("ASoC: ti: fix SND_SOC_DM365_VOICE_CODEC dependencies")
Signed-off-by: Masahiro Yamada <masahiroy@...nel.org>
---

 sound/soc/ti/Kconfig | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/sound/soc/ti/Kconfig b/sound/soc/ti/Kconfig
index 698d7bc84dcf..3260a30d3d54 100644
--- a/sound/soc/ti/Kconfig
+++ b/sound/soc/ti/Kconfig
@@ -211,7 +211,7 @@ config SND_SOC_DM365_VOICE_CODEC
 	  Say Y if you want to add support for SoC On-chip voice codec
 endchoice

-config SND_SOC_DM365_VOICE_CODEC_MODULE
+config SND_SOC_DM365_SELECT_VOICE_CODECS
 	def_tristate y
 	depends on SND_SOC_DM365_VOICE_CODEC && SND_SOC
 	select MFD_DAVINCI_VOICECODEC
-- 
2.30.2