netdev - Re: [build bug] drivers/built-in.o: In function `rt2x00leds_resume': : undefined reference to `led_classdev

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Message-Id: <20080420.020557.231970202.davem@davemloft.net>
Date:	Sun, 20 Apr 2008 02:05:57 -0700 (PDT)
From:	David Miller <davem@...emloft.net>
To:	mingo@...e.hu
Cc:	linville@...driver.com, tomas.winkler@...el.com,
	linux-kernel@...r.kernel.org, kaber@...sh.net,
	torvalds@...ux-foundation.org, akpm@...ux-foundation.org,
	netdev@...r.kernel.org, netfilter-devel@...r.kernel.org,
	mabbas@...ux.intel.com, ischram@...enet.be, rjw@...k.pl,
	ivdoorn@...il.com
Subject: Re: [build bug] drivers/built-in.o: In function
 `rt2x00leds_resume': : undefined reference to `led_classdev_resume'

From: Ingo Molnar <mingo@...e.hu>
Date: Sun, 20 Apr 2008 10:13:02 +0200

>   drivers/built-in.o: In function `rt2x00leds_resume':
>   : undefined reference to `led_classdev_resume'
>   drivers/built-in.o: In function `rt2x00leds_resume':
>   : undefined reference to `led_classdev_resume'
>   [...]
> 
> config:
> 
>   http://redhat.com/~mingo/misc/config-Sun_Apr_20_09_43_01_CEST_2008.bad

Thanks for your report.

This is a similar case to the iwlwifi build failure you reported
earlier today (where the leds infrastructure knob is modular but the
driver using the interfaces is built-in).  Therefore, it likely should
use select too.

This should fix it:

rt2x00: Select LEDS_CLASS instead of using 'depends'.

Based upon a build failure reported by Ingo Molnar.

Signed-off-by: David S. Miller <davem@...emloft.net>

diff --git a/drivers/net/wireless/rt2x00/Kconfig b/drivers/net/wireless/rt2x00/Kconfig
index a1e3938..ab1029e 100644
--- a/drivers/net/wireless/rt2x00/Kconfig
+++ b/drivers/net/wireless/rt2x00/Kconfig
@@ -60,7 +60,8 @@ config RT2400PCI_RFKILL
 
 config RT2400PCI_LEDS
 	bool "RT2400 leds support"
-	depends on RT2400PCI && LEDS_CLASS
+	depends on RT2400PCI
+	select LEDS_CLASS
 	select RT2X00_LIB_LEDS
 	---help---
 	  This adds support for led triggers provided my mac80211.
@@ -86,7 +87,8 @@ config RT2500PCI_RFKILL
 
 config RT2500PCI_LEDS
 	bool "RT2500 leds support"
-	depends on RT2500PCI && LEDS_CLASS
+	depends on RT2500PCI
+	select LEDS_CLASS
 	select RT2X00_LIB_LEDS
 	---help---
 	  This adds support for led triggers provided my mac80211.
@@ -114,7 +116,8 @@ config RT61PCI_RFKILL
 
 config RT61PCI_LEDS
 	bool "RT61 leds support"
-	depends on RT61PCI && LEDS_CLASS
+	depends on RT61PCI
+	select LEDS_CLASS
 	select RT2X00_LIB_LEDS
 	---help---
 	  This adds support for led triggers provided my mac80211.
@@ -130,7 +133,8 @@ config RT2500USB
 
 config RT2500USB_LEDS
 	bool "RT2500 leds support"
-	depends on RT2500USB && LEDS_CLASS
+	depends on RT2500USB
+	select LEDS_CLASS
 	select RT2X00_LIB_LEDS
 	---help---
 	  This adds support for led triggers provided my mac80211.
@@ -148,7 +152,8 @@ config RT73USB
 
 config RT73USB_LEDS
 	bool "RT73 leds support"
-	depends on RT73USB && LEDS_CLASS
+	depends on RT73USB
+	select LEDS_CLASS
 	select RT2X00_LIB_LEDS
 	---help---
 	  This adds support for led triggers provided my mac80211.
--
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