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authorJeff Westfahl <jeff.westfahl@ni.com>2017-01-10 13:30:17 -0600
committerBrian Norris <computersforpeace@gmail.com>2017-02-08 13:53:52 -0800
commit6080ef6e7c0a0592cbcca11200d879faf65e27d4 (patch)
tree509d57287040d86a9fe5459bd501ec0cbe6da66f /drivers/mtd
parent7da0fffb3a4cb76a4869bf12acb750a4f9e2f2c1 (diff)
downloadlinux-6080ef6e7c0a0592cbcca11200d879faf65e27d4.tar.bz2
mtd: introduce function max_bad_blocks
If implemented, 'max_bad_blocks' returns the maximum number of bad blocks to reserve for a MTD. An implementation for NAND is coming soon. Signed-off-by: Jeff Westfahl <jeff.westfahl@ni.com> Signed-off-by: Zach Brown <zach.brown@ni.com> Acked-by: Boris Brezillon <boris.brezillon@free-electron.com> Acked-by: Brian Norris <computersforpeace@gmail.com> Signed-off-by: Brian Norris <computersforpeace@gmail.com>
Diffstat (limited to 'drivers/mtd')
-rw-r--r--drivers/mtd/mtdpart.c10
1 files changed, 10 insertions, 0 deletions
diff --git a/drivers/mtd/mtdpart.c b/drivers/mtd/mtdpart.c
index fccdd49bb964..08925bb68fd6 100644
--- a/drivers/mtd/mtdpart.c
+++ b/drivers/mtd/mtdpart.c
@@ -349,6 +349,14 @@ static const struct mtd_ooblayout_ops part_ooblayout_ops = {
.free = part_ooblayout_free,
};
+static int part_max_bad_blocks(struct mtd_info *mtd, loff_t ofs, size_t len)
+{
+ struct mtd_part *part = mtd_to_part(mtd);
+
+ return part->master->_max_bad_blocks(part->master,
+ ofs + part->offset, len);
+}
+
static inline void free_partition(struct mtd_part *p)
{
kfree(p->mtd.name);
@@ -475,6 +483,8 @@ static struct mtd_part *allocate_partition(struct mtd_info *master,
slave->mtd._block_isbad = part_block_isbad;
if (master->_block_markbad)
slave->mtd._block_markbad = part_block_markbad;
+ if (master->_max_bad_blocks)
+ slave->mtd._max_bad_blocks = part_max_bad_blocks;
if (master->_get_device)
slave->mtd._get_device = part_get_device;