linux-kernel - [ 02/82] microblaze: Do not select GENERIC

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Date:	Thu, 07 Jun 2012 13:03:38 +0900
From:	Greg KH <gregkh@...uxfoundation.org>
To:	linux-kernel@...r.kernel.org, stable@...r.kernel.org
Cc:	torvalds@...ux-foundation.org, akpm@...ux-foundation.org,
	alan@...rguk.ukuu.org.uk, Lars-Peter Clausen <lars@...afoo.de>,
	Michal Simek <monstr@...str.eu>
Subject: [ 02/82] microblaze: Do not select GENERIC_GPIO by default

3.4-stable review patch.  If anyone has any objections, please let me know.

------------------

From: Lars-Peter Clausen <lars@...afoo.de>

commit 59516b07b4ffa7e607a5787674ea3c405f1b390c upstream.

The microblaze architecture does not provide a native GPIO API implementation
nor requires GPIOLIB, but still selects GENERIC_GPIO by default. As a result the
following build error occurs, if GPIOLIB is not selected:

	include/asm-generic/gpio.h: In function 'gpio_get_value_cansleep':
	include/asm-generic/gpio.h:218: error: implicit declaration of function '__gpio_get_value'
	include/asm-generic/gpio.h: In function 'gpio_set_value_cansleep':
	include/asm-generic/gpio.h:224: error: implicit declaration of function '__gpio_set_value'

This patch addresses the issue by not selecting GENERIC_GPIO by default. This
causes the GPIO API to be stubbed out if no implementation is provided.

Signed-off-by: Lars-Peter Clausen <lars@...afoo.de>
Tested-by: Michal Simek <monstr@...str.eu>
Signed-off-by: Greg Kroah-Hartman <gregkh@...uxfoundation.org>

---
 arch/microblaze/Kconfig |    2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

--- a/arch/microblaze/Kconfig
+++ b/arch/microblaze/Kconfig
@@ -57,7 +57,7 @@ config GENERIC_CLOCKEVENTS
 	def_bool y
 
 config GENERIC_GPIO
-	def_bool y
+	bool
 
 config GENERIC_CSUM
 	def_bool y


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