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, 60 insertions, 0 deletions

diff --git a/target/linux/generic/pending-4.19/494-mtd-ubi-add-EOF-marker-support.patch b/target/linux/generic/pending-4.19/494-mtd-ubi-add-EOF-marker-support.patch
new file mode 100644
index 0000000000..a3b58dd66f
--- /dev/null
+++ b/target/linux/generic/pending-4.19/494-mtd-ubi-add-EOF-marker-support.patch
@@ -0,0 +1,60 @@
+From: Gabor Juhos <juhosg@openwrt.org>
+Subject: mtd: add EOF marker support to the UBI layer
+
+Signed-off-by: Gabor Juhos <juhosg@openwrt.org>
+---
+ drivers/mtd/ubi/attach.c | 25 ++++++++++++++++++++++---
+ drivers/mtd/ubi/ubi.h    |  1 +
+ 2 files changed, 23 insertions(+), 3 deletions(-)
+
+--- a/drivers/mtd/ubi/attach.c
++++ b/drivers/mtd/ubi/attach.c
+@@ -939,6 +939,13 @@ static bool vol_ignored(int vol_id)
+ #endif
+ }
+ 
++static bool ec_hdr_has_eof(struct ubi_ec_hdr *ech)
++{
++	return ech->padding1[0] == 'E' &&
++	       ech->padding1[1] == 'O' &&
++	       ech->padding1[2] == 'F';
++}
++
+ /**
+  * scan_peb - scan and process UBI headers of a PEB.
+  * @ubi: UBI device description object
+@@ -971,9 +978,21 @@ static int scan_peb(struct ubi_device *u
+ 		return 0;
+ 	}
+ 
+-	err = ubi_io_read_ec_hdr(ubi, pnum, ech, 0);
+-	if (err < 0)
+-		return err;
++	if (!ai->eof_found) {
++		err = ubi_io_read_ec_hdr(ubi, pnum, ech, 0);
++		if (err < 0)
++			return err;
++
++		if (ec_hdr_has_eof(ech)) {
++			pr_notice("UBI: EOF marker found, PEBs from %d will be erased\n",
++				pnum);
++			ai->eof_found = true;
++		}
++	}
++
++	if (ai->eof_found)
++		err = UBI_IO_FF_BITFLIPS;
++
+ 	switch (err) {
+ 	case 0:
+ 		break;
+--- a/drivers/mtd/ubi/ubi.h
++++ b/drivers/mtd/ubi/ubi.h
+@@ -785,6 +785,7 @@ struct ubi_attach_info {
+ 	int mean_ec;
+ 	uint64_t ec_sum;
+ 	int ec_count;
++	bool eof_found;
+ 	struct kmem_cache *aeb_slab_cache;
+ 	struct ubi_ec_hdr *ech;
+ 	struct ubi_vid_io_buf *vidb;