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mtd: introduce mtd_can_have_bb helper

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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>
This commit is contained in:
Artem Bityutskiy
2012-01-02 13:48:54 +02:00
committed by David Woodhouse
parent 079c985e7a
commit 8f461a7302
12 changed files with 21 additions and 20 deletions
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7
include/linux/mtd/mtd.h
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@@ -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;