From 648f1d01710c2e9d5bb3e296d9553120e5bbe51e Mon Sep 17 00:00:00 2001 From: Imre Kaloz Date: Tue, 23 Oct 2012 12:21:34 +0000 Subject: [generic]: linux 3.6 support (work in progress) git-svn-id: svn://svn.openwrt.org/openwrt/trunk@33897 3c298f89-4303-0410-b956-a3cf2f4a3e73 --- .../478-mtd-partial_eraseblock_unlock.patch | 18 ++++++++++++++++++ 1 file changed, 18 insertions(+) create mode 100644 target/linux/generic/patches-3.6/478-mtd-partial_eraseblock_unlock.patch (limited to 'target/linux/generic/patches-3.6/478-mtd-partial_eraseblock_unlock.patch') diff --git a/target/linux/generic/patches-3.6/478-mtd-partial_eraseblock_unlock.patch b/target/linux/generic/patches-3.6/478-mtd-partial_eraseblock_unlock.patch new file mode 100644 index 0000000000..d60a428f09 --- /dev/null +++ b/target/linux/generic/patches-3.6/478-mtd-partial_eraseblock_unlock.patch @@ -0,0 +1,18 @@ +--- a/drivers/mtd/mtdpart.c ++++ b/drivers/mtd/mtdpart.c +@@ -356,7 +356,14 @@ static int part_unlock(struct mtd_info * + 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