From eac842c52b28a4fd42082f3ca8231f5874a57361 Mon Sep 17 00:00:00 2001 From: Imre Kaloz Date: Sun, 25 Jan 2015 15:20:39 +0000 Subject: generic: add preliminary 3.19 support Signed-off-by: Imre Kaloz git-svn-id: svn://svn.openwrt.org/openwrt/trunk@44126 3c298f89-4303-0410-b956-a3cf2f4a3e73 --- .../412-mtd-partial_eraseblock_unlock.patch | 18 ++++++++++++++++++ 1 file changed, 18 insertions(+) create mode 100644 target/linux/generic/patches-3.19/412-mtd-partial_eraseblock_unlock.patch (limited to 'target/linux/generic/patches-3.19/412-mtd-partial_eraseblock_unlock.patch') diff --git a/target/linux/generic/patches-3.19/412-mtd-partial_eraseblock_unlock.patch b/target/linux/generic/patches-3.19/412-mtd-partial_eraseblock_unlock.patch new file mode 100644 index 0000000000..ba45accd4b --- /dev/null +++ b/target/linux/generic/patches-3.19/412-mtd-partial_eraseblock_unlock.patch @@ -0,0 +1,18 @@ +--- a/drivers/mtd/mtdpart.c ++++ b/drivers/mtd/mtdpart.c +@@ -334,7 +334,14 @@ static int part_lock(struct mtd_info *mt + static int part_unlock(struct mtd_info *mtd, loff_t ofs, uint64_t len) + { + struct mtd_part *part = PART(mtd); +- return part->master->_unlock(part->master, ofs + part->offset, len); ++ ++ ofs += part->offset; ++ if (mtd->flags & MTD_ERASE_PARTIAL) { ++ /* round up len to next erasesize and round down offset to prev block */ ++ len = (mtd_div_by_eb(len, part->master) + 1) * part->master->erasesize; ++ ofs &= ~(part->master->erasesize - 1); ++ } ++ return part->master->_unlock(part->master, ofs, len); + } + + static int part_is_locked(struct mtd_info *mtd, loff_t ofs, uint64_t len) -- cgit v1.2.3