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| author | Artem Bityutskiy <artem.bityutskiy@linux.intel.com> | 2012-01-02 13:48:54 +0200 |
|---|---|---|
| committer | David Woodhouse <David.Woodhouse@intel.com> | 2012-01-09 18:26:24 +0000 |
| commit | 8f461a730242c528ca221948edceca49266a3ffb (patch) | |
| tree | 232b1d9ac6a74df87a84c9e1e6a61415afc9f583 /include/linux/mtd | |
| parent | 079c985e7a6f4ce60f931cebfdd5ee3c38347e31 (diff) | |
| download | linux-stable-8f461a730242c528ca221948edceca49266a3ffb.tar.gz linux-stable-8f461a730242c528ca221948edceca49266a3ffb.tar.bz2 linux-stable-8f461a730242c528ca221948edceca49266a3ffb.zip | |
mtd: introduce mtd_can_have_bb helper
This patch introduces new 'mtd_can_have_bb()' helper function which checks
whether the flash can have bad eraseblocks. Then it changes all the
direct 'mtd->block_isbad' use cases with 'mtd_can_have_bb()'.
Signed-off-by: Artem Bityutskiy <artem.bityutskiy@linux.intel.com>
Signed-off-by: David Woodhouse <David.Woodhouse@intel.com>
Diffstat (limited to 'include/linux/mtd')
| -rw-r--r-- | include/linux/mtd/mtd.h | 7 |
1 files changed, 7 insertions, 0 deletions
diff --git a/include/linux/mtd/mtd.h b/include/linux/mtd/mtd.h index 089370758fc9..7e35755f6931 100644 --- a/include/linux/mtd/mtd.h +++ b/include/linux/mtd/mtd.h @@ -440,6 +440,8 @@ static inline void mtd_resume(struct mtd_info *mtd) static inline int mtd_block_isbad(struct mtd_info *mtd, loff_t ofs) { + if (!mtd->block_isbad) + return -EOPNOTSUPP; return mtd->block_isbad(mtd, ofs); } @@ -483,6 +485,11 @@ static inline int mtd_has_oob(const struct mtd_info *mtd) return mtd->read_oob && mtd->write_oob; } +static inline int mtd_can_have_bb(const struct mtd_info *mtd) +{ + return !!mtd->block_isbad; +} + /* Kernel-side ioctl definitions */ struct mtd_partition; |