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| author | Miquel Raynal <miquel.raynal@bootlin.com> | 2020-09-30 02:01:22 +0300 |
|---|---|---|
| committer | Miquel Raynal <miquel.raynal@bootlin.com> | 2020-12-11 00:37:30 +0300 |
| commit | 5180a62c12497aa491a7c79c062a9e3a884c9762 (patch) | |
| tree | 7ae6004732955f249137207d547a729b3c5adc97 /include/linux/mtd | |
| parent | eb08376a5dd943cf2a7360f236fe20bbd709fa95 (diff) | |
| download | linux-5180a62c12497aa491a7c79c062a9e3a884c9762.tar.xz | |
mtd: nand: ecc-hamming: Let the software Hamming ECC engine be unselected
There is no reason to always embed the software Hamming ECC engine
implementation. By default it is (with raw NAND), but we can let the
user decide.
Signed-off-by: Miquel Raynal <miquel.raynal@bootlin.com>
Link: https://lore.kernel.org/linux-mtd/20200929230124.31491-19-miquel.raynal@bootlin.com
Diffstat (limited to 'include/linux/mtd')
| -rw-r--r-- | include/linux/mtd/nand-ecc-sw-hamming.h | 36 |
1 files changed, 36 insertions, 0 deletions
diff --git a/include/linux/mtd/nand-ecc-sw-hamming.h b/include/linux/mtd/nand-ecc-sw-hamming.h index 9d4b4d623741..5a39e96c3546 100644 --- a/include/linux/mtd/nand-ecc-sw-hamming.h +++ b/include/linux/mtd/nand-ecc-sw-hamming.h @@ -32,6 +32,8 @@ struct nand_ecc_sw_hamming_conf { unsigned int sm_order; }; +#if IS_ENABLED(CONFIG_MTD_NAND_ECC_SW_HAMMING) + int ecc_sw_hamming_calculate(const unsigned char *buf, unsigned int step_size, unsigned char *code, bool sm_order); int nand_ecc_sw_hamming_calculate(struct nand_device *nand, @@ -44,4 +46,38 @@ int nand_ecc_sw_hamming_correct(struct nand_device *nand, unsigned char *buf, unsigned char *read_ecc, unsigned char *calc_ecc); +#else /* !CONFIG_MTD_NAND_ECC_SW_HAMMING */ + +static inline int ecc_sw_hamming_calculate(const unsigned char *buf, + unsigned int step_size, + unsigned char *code, bool sm_order) +{ + return -ENOTSUPP; +} + +static inline int nand_ecc_sw_hamming_calculate(struct nand_device *nand, + const unsigned char *buf, + unsigned char *code) +{ + return -ENOTSUPP; +} + +static inline int ecc_sw_hamming_correct(unsigned char *buf, + unsigned char *read_ecc, + unsigned char *calc_ecc, + unsigned int step_size, bool sm_order) +{ + return -ENOTSUPP; +} + +static inline int nand_ecc_sw_hamming_correct(struct nand_device *nand, + unsigned char *buf, + unsigned char *read_ecc, + unsigned char *calc_ecc) +{ + return -ENOTSUPP; +} + +#endif /* CONFIG_MTD_NAND_ECC_SW_HAMMING */ + #endif /* __MTD_NAND_ECC_SW_HAMMING_H__ */ |