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From: Randy Dunlap <rdunlap@infradead.org>
To: linux-kernel@vger.kernel.org
Cc: Randy Dunlap <rdunlap@infradead.org>,
	kernel test robot <lkp@intel.com>,
	Kalle Valo <kvalo@codeaurora.org>,
	Christian Lamparter <chunkeey@googlemail.com>,
	linux-wireless@vger.kernel.org, Arnd Bergmann <arnd@arndb.de>
Subject: [PATCH v3] wireless: carl9170: fix LEDS build errors & warnings
Date: Sat, 29 May 2021 20:11:34 -0700
Message-ID: <20210530031134.23274-1-rdunlap@infradead.org> (raw)

kernel test robot reports over 200 build errors and warnings
that are due to this Kconfig problem when CARL9170=m,
MAC80211=y, and LEDS_CLASS=m.

WARNING: unmet direct dependencies detected for MAC80211_LEDS
  Depends on [n]: NET [=y] && WIRELESS [=y] && MAC80211 [=y] && (LEDS_CLASS [=m]=y || LEDS_CLASS [=m]=MAC80211 [=y])
  Selected by [m]:
  - CARL9170_LEDS [=y] && NETDEVICES [=y] && WLAN [=y] && WLAN_VENDOR_ATH [=y] && CARL9170 [=m]

CARL9170_LEDS selects MAC80211_LEDS even though its kconfig
dependencies are not met. This happens because 'select' does not follow
any Kconfig dependency chains.

Fix this by making CARL9170_LEDS depend on MAC80211_LEDS, where
the latter supplies any needed dependencies on LEDS_CLASS.

Fixes: 1d7e1e6b1b8ed ("carl9170: Makefile, Kconfig files and MAINTAINERS")
Signed-off-by: Randy Dunlap <rdunlap@infradead.org>
Reported-by: kernel test robot <lkp@intel.com>
Cc: Kalle Valo <kvalo@codeaurora.org>
Cc: Christian Lamparter <chunkeey@googlemail.com>
Cc: linux-wireless@vger.kernel.org
Cc: Arnd Bergmann <arnd@arndb.de>
Suggested-by: Christian Lamparter <chunkeey@googlemail.com>
---
v2: modify as suggesed by Arnd
v3: modify as suggested by Christian

 drivers/net/wireless/ath/carl9170/Kconfig |    8 +++-----
 1 file changed, 3 insertions(+), 5 deletions(-)

--- linux-next-20210528.orig/drivers/net/wireless/ath/carl9170/Kconfig
+++ linux-next-20210528/drivers/net/wireless/ath/carl9170/Kconfig
@@ -16,13 +16,11 @@ config CARL9170
 
 config CARL9170_LEDS
 	bool "SoftLED Support"
-	depends on CARL9170
-	select MAC80211_LEDS
-	select LEDS_CLASS
-	select NEW_LEDS
 	default y
+	depends on CARL9170
+	depends on MAC80211_LEDS
 	help
-	  This option is necessary, if you want your device' LEDs to blink
+	  This option is necessary, if you want your device's LEDs to blink.
 
 	  Say Y, unless you need the LEDs for firmware debugging.
 

             reply index

Thread overview: 8+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2021-05-30  3:11 Randy Dunlap [this message]
2021-05-30  9:07 ` Arnd Bergmann
2021-05-30  9:31 ` Christian Lamparter
2021-05-30 14:32   ` Randy Dunlap
2021-06-03  9:46     ` Kalle Valo
2021-06-03 15:20       ` Randy Dunlap
2021-06-03 18:10         ` Christian Lamparter
2021-06-12 10:38 ` Kalle Valo

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