linux-kernel - [PATCH 02/15] mtd: omap2: allow bulding as a module

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Date:	Sat,  1 Jun 2013 00:22:39 +0200
From:	Arnd Bergmann <arnd@...db.de>
To:	linux-kernel@...r.kernel.org
Cc:	patches@...ts.linaro.org, linux-arm-kernel@...ts.infradead.org,
	Arnd Bergmann <arnd@...db.de>,
	David Woodhouse <dwmw2@...radead.org>,
	Artem Bityutskiy <artem.bityutskiy@...ux.intel.com>,
	Afzal Mohammed <afzal@...com>,
	Russell King <rmk+kernel@....linux.org.uk>,
	linux-mtd@...ts.infradead.org
Subject: [PATCH 02/15] mtd: omap2: allow bulding as a module

The omap2 nand device driver calls into the the elm code, which can
be a loadable module, and in that case it cannot be built-in itself.
I can see no reason why the omap2 driver cannot also be a module,
so let's make the option "tristate" in Kconfig to fix this allmodconfig
build error:

ERROR: "elm_config" [drivers/mtd/nand/omap2.ko] undefined!
ERROR: "elm_decode_bch_error_page" [drivers/mtd/nand/omap2.ko] undefined!

Signed-off-by: Arnd Bergmann <arnd@...db.de>
Acked-by: Tony Lindgren <tony@...mide.com>
Cc: David Woodhouse <dwmw2@...radead.org>
Cc: Artem Bityutskiy <artem.bityutskiy@...ux.intel.com>
Cc: Afzal Mohammed <afzal@...com>
Cc: Russell King <rmk+kernel@....linux.org.uk>
Cc: linux-mtd@...ts.infradead.org
---
 drivers/mtd/nand/Kconfig | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/mtd/nand/Kconfig b/drivers/mtd/nand/Kconfig
index 3ae9105..5ef8f5e 100644
--- a/drivers/mtd/nand/Kconfig
+++ b/drivers/mtd/nand/Kconfig
@@ -95,7 +95,7 @@ config MTD_NAND_OMAP2
 
 config MTD_NAND_OMAP_BCH
 	depends on MTD_NAND && MTD_NAND_OMAP2 && ARCH_OMAP3
-	bool "Enable support for hardware BCH error correction"
+	tristate "Enable support for hardware BCH error correction"
 	default n
 	select BCH
 	select BCH_CONST_PARAMS
-- 
1.8.1.2

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