kernel: Copy patches from kernel 4.14 to 4.19

This just copies the files from the kernel 4.14 specific folders into
the kernel 4.19 specific folder, no changes are done to the files in
this commit.

Signed-off-by: Hauke Mehrtens <hauke@hauke-m.de>

1 files changed, 55 insertions, 0 deletions

diff --git a/target/linux/generic/backport-4.19/048-v4.21-mtd-improve-calculating-partition-boundaries-when-ch.patch b/target/linux/generic/backport-4.19/048-v4.21-mtd-improve-calculating-partition-boundaries-when-ch.patch
new file mode 100644
index 0000000000..58163e6935
--- /dev/null
+++ b/target/linux/generic/backport-4.19/048-v4.21-mtd-improve-calculating-partition-boundaries-when-ch.patch
@@ -0,0 +1,55 @@
+From 6750f61a13a0197c40e4a40739117493b15f19e8 Mon Sep 17 00:00:00 2001
+From: =?UTF-8?q?Rafa=C5=82=20Mi=C5=82ecki?= <rafal@milecki.pl>
+Date: Tue, 20 Nov 2018 10:24:09 +0100
+Subject: [PATCH] mtd: improve calculating partition boundaries when checking
+ for alignment
+MIME-Version: 1.0
+Content-Type: text/plain; charset=UTF-8
+Content-Transfer-Encoding: 8bit
+
+When checking for alignment mtd should check absolute offsets. It's
+important for subpartitions as it doesn't make sense to check their
+relative addresses.
+
+Signed-off-by: Rafał Miłecki <rafal@milecki.pl>
+Signed-off-by: Boris Brezillon <boris.brezillon@bootlin.com>
+---
+ drivers/mtd/mtdpart.c | 13 +++++++++++--
+ 1 file changed, 11 insertions(+), 2 deletions(-)
+
+--- a/drivers/mtd/mtdpart.c
++++ b/drivers/mtd/mtdpart.c
+@@ -61,6 +61,15 @@ static inline struct mtd_part *mtd_to_pa
+ 	return container_of(mtd, struct mtd_part, mtd);
+ }
+ 
++static u64 part_absolute_offset(struct mtd_info *mtd)
++{
++	struct mtd_part *part = mtd_to_part(mtd);
++
++	if (!mtd_is_partition(mtd))
++		return 0;
++
++	return part_absolute_offset(part->parent) + part->offset;
++}
+ 
+ /*
+  * MTD methods which simply translate the effective address and pass through
+@@ -562,7 +571,7 @@ static struct mtd_part *allocate_partiti
+ 	if (!(slave->mtd.flags & MTD_NO_ERASE))
+ 		wr_alignment = slave->mtd.erasesize;
+ 
+-	tmp = slave->offset;
++	tmp = part_absolute_offset(parent) + 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 */
+@@ -573,7 +582,7 @@ static struct mtd_part *allocate_partiti
+ 			part->name);
+ 	}
+ 
+-	tmp = slave->mtd.size;
++	tmp = part_absolute_offset(parent) + slave->mtd.size;
+ 	remainder = do_div(tmp, wr_alignment);
+ 	if ((slave->mtd.flags & MTD_WRITEABLE) && remainder) {
+ 		slave->mtd.flags &= ~MTD_WRITEABLE;