rootfs: fix USE_APK detection
[openwrt/openwrt.git] / target / linux / generic / pending-4.9 / 494-mtd-ubi-add-EOF-marker-support.patch
diff --git a/target/linux/generic/pending-4.9/494-mtd-ubi-add-EOF-marker-support.patch b/target/linux/generic/pending-4.9/494-mtd-ubi-add-EOF-marker-support.patch
deleted file mode 100644 (file)
index c6ba444..0000000
+++ /dev/null
@@ -1,60 +0,0 @@
-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",
-+                              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
-@@ -779,6 +779,7 @@ 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;