/*
* try to support NOMMU mmaps on concatenated devices
* - we don't support subdev spanning as we can't guarantee it'll work
*/
static unsigned long concat_get_unmapped_area(struct mtd_info *mtd,
unsigned long len,
unsigned long offset,
unsigned long flags)
{
struct mtd_concat *concat = CONCAT(mtd);
int i;
for (i = 0; i < concat->num_subdev; i++) {
struct mtd_info *subdev = concat->subdev[i];
if (offset >= subdev->size) {
offset -= subdev->size;
continue;
}
/* we've found the subdev over which the mapping will reside */
if (offset + len > subdev->size)
return (unsigned long) -EINVAL;
return mtd_get_unmapped_area(subdev, len, offset, flags);
}
return (unsigned long) -ENOSYS;
}
/*
* try to support NOMMU mmaps on concatenated devices
* - we don't support subdev spanning as we can't guarantee it'll work
*/
static unsigned long concat_get_unmapped_area(struct mtd_info *mtd,
unsigned long len,
unsigned long offset,
unsigned long flags)
{
struct mtd_concat *concat = CONCAT(mtd);
int i;
for (i = 0; i < concat->num_subdev; i++) {
struct mtd_info *subdev = concat->subdev[i];
if (offset >= subdev->size) {
offset -= subdev->size;
continue;
}
return mtd_get_unmapped_area(subdev, len, offset, flags);
}
return (unsigned long) -ENOSYS;
}
