linux-kernel - [PATCH] drivers/leds/leds-netxbig: make LEDS_NETXBIG depend on LEDS

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Message-ID: <1310224038.14501.1.camel@phoenix>
Date:	Sat, 09 Jul 2011 23:07:18 +0800
From:	Axel Lin <axel.lin@...il.com>
To:	linux-kernel@...r.kernel.org
Cc:	Simon Guinot <sguinot@...ie.com>,
	Richard Purdie <rpurdie@...ys.net>,
	Andrew Morton <akpm@...ux-foundation.org>
Subject: [PATCH] drivers/leds/leds-netxbig: make LEDS_NETXBIG depend on
 LEDS_CLASS

We call led_classdev_register/led_classdev_unregister in
create_netxbig_led/delete_netxbig_led, thus make LEDS_NETXBIG
depend on LEDS_CLASS.

This patch fixes below build error if LEDS_CLASS is not configured.

  LD      .tmp_vmlinux1
drivers/built-in.o: In function `create_netxbig_led':
drivers/leds/leds-netxbig.c:350: undefined reference to `led_classdev_register'
drivers/leds/leds-netxbig.c:361: undefined reference to `led_classdev_unregister'
drivers/built-in.o: In function `delete_netxbig_led':
drivers/leds/leds-netxbig.c:313: undefined reference to `led_classdev_unregister'
make: *** [.tmp_vmlinux1] Error 1

Signed-off-by: Axel Lin <axel.lin@...il.com>
---
 drivers/leds/Kconfig |    1 +
 1 files changed, 1 insertions(+), 0 deletions(-)

diff --git a/drivers/leds/Kconfig b/drivers/leds/Kconfig
index 6cb0708..8974d27 100644
--- a/drivers/leds/Kconfig
+++ b/drivers/leds/Kconfig
@@ -357,6 +357,7 @@ config LEDS_NS2
 config LEDS_NETXBIG
 	tristate "LED support for Big Network series LEDs"
 	depends on MACH_NET2BIG_V2 || MACH_NET5BIG_V2
+	depends on LEDS_CLASS
 	default y
 	help
 	  This option enable support for LEDs found on the LaCie 2Big
-- 
1.7.4.1



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