CONFIG_MTD_NAND_ECC_SW_BCH 1725 drivers/mtd/nand/raw/omap2.c 	if (ecc_needs_bch && !IS_ENABLED(CONFIG_MTD_NAND_ECC_SW_BCH)) {
CONFIG_MTD_NAND_ECC_SW_BCH   15 include/linux/mtd/nand_bch.h #if IS_ENABLED(CONFIG_MTD_NAND_ECC_SW_BCH)