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| author | Rafał Miłecki <rafal@milecki.pl> | 2017-06-23 08:59:46 +0200 |
|---|---|---|
| committer | Rafał Miłecki <rafal@milecki.pl> | 2017-06-23 10:09:57 +0200 |
| commit | 4052443a235433fb97af9711bf6429cd05820ba9 (patch) | |
| tree | 64644f1ea40fc2b97631abbba55c0bcd6f9f35bc /target/linux/generic/patches-4.9/404-mtd-add-more-helper-functions.patch | |
| parent | b91a38d6479ec7ca028352013e3f27e05491cc95 (diff) | |
| download | upstream-4052443a235433fb97af9711bf6429cd05820ba9.tar.gz upstream-4052443a235433fb97af9711bf6429cd05820ba9.tar.bz2 upstream-4052443a235433fb97af9711bf6429cd05820ba9.zip | |
kernel: don't switch allocate_partition to use mtd_roundup_to_eb
This mtd_roundup_to_eb helper was introduced years ago in the commit
daec7ad768841 ("kernel/3.10: add separate rootfs partition parser") and
it was probably supposed to simplify code a bit.
With the recent upstream commit 1eeef2d7483a7 ("mtd: handle partitioning
on devices with 0 erasesize") the logic in allocate_partition got
slightly more complex and we can't use this simple helper anymore as it
doesn't support MTD_NO_ERASE properly.
There also isn't any real gain from this helper, so it's probably easier
to just don't use it *or* work on upstreaming it to avoid maintenance
cost.
Signed-off-by: Rafał Miłecki <rafal@milecki.pl>
Diffstat (limited to 'target/linux/generic/patches-4.9/404-mtd-add-more-helper-functions.patch')
| -rw-r--r-- | target/linux/generic/patches-4.9/404-mtd-add-more-helper-functions.patch | 22 |
1 files changed, 2 insertions, 20 deletions
diff --git a/target/linux/generic/patches-4.9/404-mtd-add-more-helper-functions.patch b/target/linux/generic/patches-4.9/404-mtd-add-more-helper-functions.patch index c632912294..6ecd6a1a34 100644 --- a/target/linux/generic/patches-4.9/404-mtd-add-more-helper-functions.patch +++ b/target/linux/generic/patches-4.9/404-mtd-add-more-helper-functions.patch @@ -1,24 +1,6 @@ --- a/drivers/mtd/mtdpart.c +++ b/drivers/mtd/mtdpart.c -@@ -493,14 +493,12 @@ 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; -@@ -717,6 +715,17 @@ run_parsers_by_type(struct mtd_part *sla +@@ -717,6 +717,17 @@ run_parsers_by_type(struct mtd_part *sla return nr_parts; } @@ -36,7 +18,7 @@ #ifdef CONFIG_MTD_SPLIT_FIRMWARE_NAME #define SPLIT_FIRMWARE_NAME CONFIG_MTD_SPLIT_FIRMWARE_NAME #else -@@ -1055,6 +1064,24 @@ int mtd_is_partition(const struct mtd_in +@@ -1055,6 +1066,24 @@ int mtd_is_partition(const struct mtd_in } EXPORT_SYMBOL_GPL(mtd_is_partition); |