linux-kernel - [PATCH] mtd/nand/docg4: Add missing HAS

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Date:	Sat, 15 Sep 2012 00:41:09 +0200
From:	Peter Huewe <peterhuewe@....de>
To:	David Woodhouse <dwmw2@...radead.org>
Cc:	Artem Bityutskiy <artem.bityutskiy@...ux.intel.com>,
	Huang Shijie <b32955@...escale.com>,
	Arnd Bergmann <arnd@...db.de>,
	Shubhrajyoti D <shubhrajyoti@...com>,
	linux-mtd@...ts.infradead.org, linux-kernel@...r.kernel.org,
	Peter Huewe <peterhuewe@....de>
Subject: [PATCH] mtd/nand/docg4: Add missing HAS_IOMEM dependency

While building an allyesconfig for UML I received this error message(s):
 drivers/mtd/nand/docg4.c: In function 'probe_docg4':
 drivers/mtd/nand/docg4.c:1272:2: error: implicit declaration of function
 'ioremap' [-Werror=implicit-function-declaration]
 drivers/mtd/nand/docg4.c:1272:10: warning: assignment makes pointer from
 integer without a cast [enabled by default]
 drivers/mtd/nand/docg4.c:1327:2: error: implicit declaration of function
 'iounmap' [-Werror=implicit-function-declaration]

which is caused by the missing implementations on UML.

This patch adds this missing HAS_IOMEM dependency and prevents the driver from
being build on platforms with no HAS_IOMEM

Signed-off-by: Peter Huewe <peterhuewe@....de>
---
 drivers/mtd/nand/Kconfig |    2 +-
 1 files changed, 1 insertions(+), 1 deletions(-)

diff --git a/drivers/mtd/nand/Kconfig b/drivers/mtd/nand/Kconfig
index 8ca4176..3e2f75d 100644
--- a/drivers/mtd/nand/Kconfig
+++ b/drivers/mtd/nand/Kconfig
@@ -356,7 +356,7 @@ config MTD_NAND_DISKONCHIP_BBTWRITE
 
 config MTD_NAND_DOCG4
 	tristate "Support for DiskOnChip G4 (EXPERIMENTAL)"
-	depends on EXPERIMENTAL
+	depends on EXPERIMENTAL && HAS_IOMEM
 	select BCH
 	select BITREVERSE
 	help
-- 
1.7.8.6

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