From 53552d22bfe1f83f69f18eddae2f1d96249440f3 Mon Sep 17 00:00:00 2001 From: Artem Bityutskiy Date: Thu, 14 Mar 2013 09:57:23 +0200 Subject: [PATCH] mtd: introduce a macro for max NAND ID sequence length Introduce a helpful macro for the maximum NAND ID sequence length instead of using the "8" magic number. Signed-off-by: Artem Bityutskiy Acked-by: Huang Shijie Signed-off-by: David Woodhouse --- include/linux/mtd/nand.h | 5 ++++- 1 file changed, 4 insertions(+), 1 deletion(-) diff --git a/include/linux/mtd/nand.h b/include/linux/mtd/nand.h index d5903c0a0fe7..0f78d19303c5 100644 --- a/include/linux/mtd/nand.h +++ b/include/linux/mtd/nand.h @@ -546,6 +546,9 @@ struct nand_chip { #define NAND_MFR_MACRONIX 0xc2 #define NAND_MFR_EON 0x92 +/* The maximum expected count of bytes in the NAND ID sequence */ +#define NAND_MAX_ID_LEN 8 + /* * A helper for defining older NAND chips where the second ID byte fully * defined the chip, including the geometry (chip size, eraseblock size, page @@ -593,7 +596,7 @@ struct nand_flash_dev { uint8_t mfr_id; uint8_t dev_id; }; - uint8_t id[8]; + uint8_t id[NAND_MAX_ID_LEN]; }; unsigned int pagesize; unsigned int chipsize; -- 2.20.1