[RFC PATCH 16/27] mtd: nand: ecc: Let the software BCH ECC engine be a module

[Miquel Raynal <miquel.raynal@xxxxxxxxxxx>]

There is no reason to prevent the software BCH ECC engine
implementation to be compiled as a module, so change the 'bool' into a
'tristate'.

Signed-off-by: Miquel Raynal <miquel.raynal@xxxxxxxxxxx>
---
 drivers/mtd/nand/ecc/Kconfig           | 2 +-
 include/linux/mtd/nand-sw-bch-engine.h | 2 +-
 2 files changed, 2 insertions(+), 2 deletions(-)

diff --git a/drivers/mtd/nand/ecc/Kconfig b/drivers/mtd/nand/ecc/Kconfig
index 6ce9007e1d9b..e0106b3a7ec1 100644
--- a/drivers/mtd/nand/ecc/Kconfig
+++ b/drivers/mtd/nand/ecc/Kconfig
@@ -12,7 +12,7 @@ config MTD_NAND_ECC_SW_HAMMING_SMC
 	  The original Linux implementation had byte 0 and 1 swapped.
 
 config MTD_NAND_ECC_SW_BCH
-	bool "Software BCH ECC engine"
+	tristate "Software BCH ECC engine"
 	select BCH
 	default n
 	help
diff --git a/include/linux/mtd/nand-sw-bch-engine.h b/include/linux/mtd/nand-sw-bch-engine.h
index d8abfc9fc288..5d0b98e34a3a 100644
--- a/include/linux/mtd/nand-sw-bch-engine.h
+++ b/include/linux/mtd/nand-sw-bch-engine.h
@@ -33,7 +33,7 @@ struct ecc_sw_bch_conf {
 	unsigned char *eccmask;
 };
 
-#if defined(CONFIG_MTD_NAND_ECC_SW_BCH)
+#if IS_ENABLED(CONFIG_MTD_NAND_ECC_SW_BCH)
 
 int ecc_sw_bch_calculate(struct nand_device *nand, const unsigned char *buf,
 			 unsigned char *code);
-- 
2.19.1


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