diff options
Diffstat (limited to 'target/linux/generic/patches-4.0/404-mtd-add-more-helper-functions.patch')
| -rw-r--r-- | target/linux/generic/patches-4.0/404-mtd-add-more-helper-functions.patch | 101 |
1 files changed, 0 insertions, 101 deletions
diff --git a/target/linux/generic/patches-4.0/404-mtd-add-more-helper-functions.patch b/target/linux/generic/patches-4.0/404-mtd-add-more-helper-functions.patch deleted file mode 100644 index 3220391604..0000000000 --- a/target/linux/generic/patches-4.0/404-mtd-add-more-helper-functions.patch +++ /dev/null @@ -1,101 +0,0 @@ ---- a/drivers/mtd/mtdpart.c -+++ b/drivers/mtd/mtdpart.c -@@ -444,14 +444,12 @@ static struct mtd_part *allocate_partiti - if (slave->offset == MTDPART_OFS_APPEND) - slave->offset = cur_offset; - if (slave->offset == MTDPART_OFS_NXTBLK) { -- slave->offset = cur_offset; -- if (mtd_mod_by_eb(cur_offset, master) != 0) { -- /* Round up to next erasesize */ -- slave->offset = (mtd_div_by_eb(cur_offset, master) + 1) * master->erasesize; -+ /* Round up to next erasesize */ -+ slave->offset = mtd_roundup_to_eb(cur_offset, master); -+ if (slave->offset != cur_offset) - printk(KERN_NOTICE "Moving partition %d: " - "0x%012llx -> 0x%012llx\n", partno, - (unsigned long long)cur_offset, (unsigned long long)slave->offset); -- } - } - if (slave->offset == MTDPART_OFS_RETAIN) { - slave->offset = cur_offset; -@@ -671,6 +669,17 @@ run_parsers_by_type(struct mtd_part *sla - return nr_parts; - } - -+static inline unsigned long -+mtd_pad_erasesize(struct mtd_info *mtd, int offset, int len) -+{ -+ unsigned long mask = mtd->erasesize - 1; -+ -+ len += offset & mask; -+ len = (len + mask) & ~mask; -+ len -= offset & mask; -+ return len; -+} -+ - #ifdef CONFIG_MTD_SPLIT_FIRMWARE_NAME - #define SPLIT_FIRMWARE_NAME CONFIG_MTD_SPLIT_FIRMWARE_NAME - #else -@@ -912,6 +921,24 @@ int mtd_is_partition(const struct mtd_in - } - EXPORT_SYMBOL_GPL(mtd_is_partition); - -+struct mtd_info *mtdpart_get_master(const struct mtd_info *mtd) -+{ -+ if (!mtd_is_partition(mtd)) -+ return (struct mtd_info *)mtd; -+ -+ return PART(mtd)->master; -+} -+EXPORT_SYMBOL_GPL(mtdpart_get_master); -+ -+uint64_t mtdpart_get_offset(const struct mtd_info *mtd) -+{ -+ if (!mtd_is_partition(mtd)) -+ return 0; -+ -+ return PART(mtd)->offset; -+} -+EXPORT_SYMBOL_GPL(mtdpart_get_offset); -+ - /* Returns the size of the entire flash chip */ - uint64_t mtd_get_device_size(const struct mtd_info *mtd) - { ---- a/include/linux/mtd/partitions.h -+++ b/include/linux/mtd/partitions.h -@@ -90,6 +90,8 @@ int mtd_is_partition(const struct mtd_in - int mtd_add_partition(struct mtd_info *master, const char *name, - long long offset, long long length); - int mtd_del_partition(struct mtd_info *master, int partno); -+struct mtd_info *mtdpart_get_master(const struct mtd_info *mtd); -+uint64_t mtdpart_get_offset(const struct mtd_info *mtd); - uint64_t mtd_get_device_size(const struct mtd_info *mtd); - extern void __weak arch_split_mtd_part(struct mtd_info *master, - const char *name, int offset, int size); ---- a/include/linux/mtd/mtd.h -+++ b/include/linux/mtd/mtd.h -@@ -334,6 +334,24 @@ static inline uint32_t mtd_mod_by_eb(uin - return do_div(sz, mtd->erasesize); - } - -+static inline uint64_t mtd_roundup_to_eb(uint64_t sz, struct mtd_info *mtd) -+{ -+ if (mtd_mod_by_eb(sz, mtd) == 0) -+ return sz; -+ -+ /* Round up to next erase block */ -+ return (mtd_div_by_eb(sz, mtd) + 1) * mtd->erasesize; -+} -+ -+static inline uint64_t mtd_rounddown_to_eb(uint64_t sz, struct mtd_info *mtd) -+{ -+ if (mtd_mod_by_eb(sz, mtd) == 0) -+ return sz; -+ -+ /* Round down to the start of the current erase block */ -+ return (mtd_div_by_eb(sz, mtd)) * mtd->erasesize; -+} -+ - static inline uint32_t mtd_div_by_ws(uint64_t sz, struct mtd_info *mtd) - { - if (mtd->writesize_shift) |