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| author | Jean-Louis Thekekara <jeanlouis.thekekara@parrot.com> | 2017-06-29 19:08:30 +0200 |
|---|---|---|
| committer | Boris Brezillon <boris.brezillon@free-electrons.com> | 2017-08-23 16:49:13 +0200 |
| commit | 5158bd5597e4c0939db3ecefbcbf492c425e611c (patch) | |
| tree | 0a4c1e150f26e53033f8955a7e27ceacb547c011 | |
| parent | f84674b82af2c3ea68b9032d1244f364e46cc75d (diff) | |
| download | op-kernel-dev-5158bd5597e4c0939db3ecefbcbf492c425e611c.zip op-kernel-dev-5158bd5597e4c0939db3ecefbcbf492c425e611c.tar.gz | |
mtd: nand: remove hard-coded NAND ids length
This commit removes hard-coded '8' used for looping into
struct nand_chip.id.data array.
NAND_MAX_ID_LEN has been introduced by Artem Bityutskiy in
53552d22bfe1f for defining ids length in nand_flash_ids[] list.
This commit unifies ids length in nand base driver.
Signed-off-by: Jean-Louis Thekekara <jeanlouis.thekekara@parrot.com>
Signed-off-by: Boris Brezillon <boris.brezillon@free-electrons.com>
| -rw-r--r-- | drivers/mtd/nand/nand_base.c | 4 | ||||
| -rw-r--r-- | include/linux/mtd/nand.h | 10 |
2 files changed, 7 insertions, 7 deletions
diff --git a/drivers/mtd/nand/nand_base.c b/drivers/mtd/nand/nand_base.c index abcb15f..ab28043 100644 --- a/drivers/mtd/nand/nand_base.c +++ b/drivers/mtd/nand/nand_base.c @@ -3886,7 +3886,7 @@ static int nand_detect(struct nand_chip *chip, struct nand_flash_dev *type) chip->cmdfunc(mtd, NAND_CMD_READID, 0x00, -1); /* Read entire ID string */ - for (i = 0; i < 8; i++) + for (i = 0; i < ARRAY_SIZE(chip->id.data); i++) id_data[i] = chip->read_byte(mtd); if (id_data[0] != maf_id || id_data[1] != dev_id) { @@ -3895,7 +3895,7 @@ static int nand_detect(struct nand_chip *chip, struct nand_flash_dev *type) return -ENODEV; } - chip->id.len = nand_id_len(id_data, 8); + chip->id.len = nand_id_len(id_data, ARRAY_SIZE(chip->id.data)); /* Try to identify manufacturer */ manufacturer = nand_get_manufacturer(maf_id); diff --git a/include/linux/mtd/nand.h b/include/linux/mtd/nand.h index 8a6522e..2976840 100644 --- a/include/linux/mtd/nand.h +++ b/include/linux/mtd/nand.h @@ -439,14 +439,16 @@ struct nand_jedec_params { __le16 crc; } __packed; +/* The maximum expected count of bytes in the NAND ID sequence */ +#define NAND_MAX_ID_LEN 8 + /** * struct nand_id - NAND id structure - * @data: buffer containing the id bytes. Currently 8 bytes large, but can - * be extended if required. + * @data: buffer containing the id bytes. * @len: ID length. */ struct nand_id { - u8 data[8]; + u8 data[NAND_MAX_ID_LEN]; int len; }; @@ -1018,8 +1020,6 @@ static inline void *nand_get_manufacturer_data(struct nand_chip *chip) #define NAND_MFR_ATO 0x9b #define NAND_MFR_WINBOND 0xef -/* 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 |
