kernel: remove support for kernel 4.9

[openwrt/openwrt.git] / target / linux / generic / backport-4.9 / 065-v4.13-0001-mtd-handle-partitioning-on-devices-with-0-erasesize.patch

diff --git a/target/linux/generic/backport-4.9/065-v4.13-0001-mtd-handle-partitioning-on-devices-with-0-erasesize.patch b/target/linux/generic/backport-4.9/065-v4.13-0001-mtd-handle-partitioning-on-devices-with-0-erasesize.patch
deleted file mode 100644 (file)
index d912811..0000000
--- a/target/linux/generic/backport-4.9/065-v4.13-0001-mtd-handle-partitioning-on-devices-with-0-erasesize.patch
+++ /dev/null
@@ -1,77 +0,0 @@
-From 1eeef2d7483a7e3f8d2dd2a5b9939b3b814dc549 Mon Sep 17 00:00:00 2001
-From: Chris Packham <chris.packham@alliedtelesis.co.nz>
-Date: Fri, 9 Jun 2017 15:58:31 +1200
-Subject: [PATCH] mtd: handle partitioning on devices with 0 erasesize
-
-erasesize is meaningful for flash devices but for SRAM there is no
-concept of an erase block so erasesize is set to 0. When partitioning
-these devices instead of ensuring partitions fall on erasesize
-boundaries we ensure they fall on writesize boundaries.
-
-Helped-by: Boris Brezillon <boris.brezillon@free-electrons.com>
-Signed-off-by: Chris Packham <chris.packham@alliedtelesis.co.nz>
-Acked-by: Boris Brezillon <boris.brezillon@free-electrons.com>
-Signed-off-by: Brian Norris <computersforpeace@gmail.com>
----
- drivers/mtd/mtdpart.c | 26 +++++++++++++++++---------
- 1 file changed, 17 insertions(+), 9 deletions(-)
-
---- a/drivers/mtd/mtdpart.c
-+++ b/drivers/mtd/mtdpart.c
-@@ -393,8 +393,12 @@ static struct mtd_part *allocate_partiti
-                       const struct mtd_partition *part, int partno,
-                       uint64_t cur_offset)
- {
-+      int wr_alignment = (master->flags & MTD_NO_ERASE) ? master->writesize:
-+                                                          master->erasesize;
-       struct mtd_part *slave;
-+      u32 remainder;
-       char *name;
-+      u64 tmp;
- 
-       /* allocate the partition structure */
-       slave = kzalloc(sizeof(*slave), GFP_KERNEL);
-@@ -499,10 +503,11 @@ static struct mtd_part *allocate_partiti
-       if (slave->offset == MTDPART_OFS_APPEND)
-               slave->offset = cur_offset;
-       if (slave->offset == MTDPART_OFS_NXTBLK) {
-+              tmp = cur_offset;
-               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;
-+              remainder = do_div(tmp, wr_alignment);
-+              if (remainder) {
-+                      slave->offset += wr_alignment - remainder;
-                       printk(KERN_NOTICE "Moving partition %d: "
-                              "0x%012llx -> 0x%012llx\n", partno,
-                              (unsigned long long)cur_offset, (unsigned long long)slave->offset);
-@@ -567,19 +572,22 @@ static struct mtd_part *allocate_partiti
-               slave->mtd.erasesize = master->erasesize;
-       }
- 
--      if ((slave->mtd.flags & MTD_WRITEABLE) &&
--          mtd_mod_by_eb(slave->offset, &slave->mtd)) {
-+      tmp = slave->offset;
-+      remainder = do_div(tmp, wr_alignment);
-+      if ((slave->mtd.flags & MTD_WRITEABLE) && remainder) {
-               /* Doesn't start on a boundary of major erase size */
-               /* FIXME: Let it be writable if it is on a boundary of
-                * _minor_ erase size though */
-               slave->mtd.flags &= ~MTD_WRITEABLE;
--              printk(KERN_WARNING"mtd: partition \"%s\" doesn't start on an erase block boundary -- force read-only\n",
-+              printk(KERN_WARNING"mtd: partition \"%s\" doesn't start on an erase/write block boundary -- force read-only\n",
-                       part->name);
-       }
--      if ((slave->mtd.flags & MTD_WRITEABLE) &&
--          mtd_mod_by_eb(slave->mtd.size, &slave->mtd)) {
-+
-+      tmp = slave->mtd.size;
-+      remainder = do_div(tmp, wr_alignment);
-+      if ((slave->mtd.flags & MTD_WRITEABLE) && remainder) {
-               slave->mtd.flags &= ~MTD_WRITEABLE;
--              printk(KERN_WARNING"mtd: partition \"%s\" doesn't end on an erase block -- force read-only\n",
-+              printk(KERN_WARNING"mtd: partition \"%s\" doesn't end on an erase/write block -- force read-only\n",
-                       part->name);
-       }
-