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[PATCH v2] wireless: carl9170: fix LEDS build errors & warnings

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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 always set/enabled if certain
conditions are met: LEDS_CLASS=y or LEDS_CLASS=CARL9170, just as
this is done for Mediatek MT76.

Fixes: 1d7e1e6b1b8ed ("carl9170: Makefile, Kconfig files and MAINTAINERS")
Signed-off-by: Randy Dunlap <rdunlap@xxxxxxxxxxxxx>
Reported-by: kernel test robot <lkp@xxxxxxxxx>
Cc: Kalle Valo <kvalo@xxxxxxxxxxxxxx>
Cc: Christian Lamparter <chunkeey@xxxxxxxxxxxxxx>
Cc: linux-wireless@xxxxxxxxxxxxxxx
Cc: Arnd Bergmann <arnd@xxxxxxxx>
Suggested-by: Arnd Bergmann <arnd@xxxxxxxx>
---
v2: modify as suggesed by Arnd

 drivers/net/wireless/ath/carl9170/Kconfig |   12 +++---------
 1 file changed, 3 insertions(+), 9 deletions(-)

--- linux-next-20210528.orig/drivers/net/wireless/ath/carl9170/Kconfig
+++ linux-next-20210528/drivers/net/wireless/ath/carl9170/Kconfig
@@ -15,16 +15,10 @@ config CARL9170
 	  If you choose to build a module, it'll be called carl9170.
 
 config CARL9170_LEDS
-	bool "SoftLED Support"
-	depends on CARL9170
-	select MAC80211_LEDS
-	select LEDS_CLASS
-	select NEW_LEDS
+	bool
 	default y
-	help
-	  This option is necessary, if you want your device' LEDs to blink
-
-	  Say Y, unless you need the LEDs for firmware debugging.
+	depends on CARL9170
+	depends on LEDS_CLASS=y || LEDS_CLASS=CARL9170
 
 config CARL9170_DEBUGFS
 	bool "DebugFS Support"



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