linux-kernel - [RFC][PATCH 1/3] staging: ion: Add HAVE

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Date:	Mon, 16 Dec 2013 13:32:42 -0800
From:	John Stultz <john.stultz@...aro.org>
To:	LKML <linux-kernel@...r.kernel.org>
Cc:	John Stultz <john.stultz@...aro.org>,
	Colin Cross <ccross@...roid.com>,
	Android Kernel Team <kernel-team@...roid.com>,
	Greg KH <gregkh@...uxfoundation.org>,
	kbuild test robot <fengguang.wu@...el.com>
Subject: [RFC][PATCH 1/3] staging: ion: Add HAVE_MEMBLOCK config dependency

The kbuild test robot reported a build issue w/ ION on m68k:

drivers/staging/android/ion/ion.c: In function 'ion_reserve':
drivers/staging/android/ion/ion.c:1526:4: error: implicit declaration of function 'memblock_alloc_base' [-Werror=implicit-function-declaration]
drivers/staging/android/ion/ion.c:1528:11: error: 'MEMBLOCK_ALLOC_ANYWHERE' undeclared (first use in this function)
drivers/staging/android/ion/ion.c:1528:11: note: each undeclared identifier is reported only once for each function it appears in
drivers/staging/android/ion/ion.c:1537:4: error: implicit declaration of function 'memblock_reserve' [-Werror=implicit-function-declaration]
   cc1: some warnings being treated as errors

This is caused by ION using memblock functionality which m68k doesn't support.

This patch adds a HAVE_MEMBLOCK dependency to the ION config.

Cc: Colin Cross <ccross@...roid.com>
Cc: Android Kernel Team <kernel-team@...roid.com>
Cc: Greg KH <gregkh@...uxfoundation.org>
Cc: kbuild test robot <fengguang.wu@...el.com>
Reported-by: kbuild test robot <fengguang.wu@...el.com>
Signed-off-by: John Stultz <john.stultz@...aro.org>
---
 drivers/staging/android/ion/Kconfig | 1 +
 1 file changed, 1 insertion(+)

diff --git a/drivers/staging/android/ion/Kconfig b/drivers/staging/android/ion/Kconfig
index b95281e..a9a64ea 100644
--- a/drivers/staging/android/ion/Kconfig
+++ b/drivers/staging/android/ion/Kconfig
@@ -1,5 +1,6 @@
 menuconfig ION
 	bool "Ion Memory Manager"
+	depends on HAVE_MEMBLOCK
 	select GENERIC_ALLOCATOR
 	select DMA_SHARED_BUFFER
 	---help---
-- 
1.8.3.2

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