diff options
Diffstat (limited to 'target/linux/generic/pending-4.9/494-mtd-ubi-add-EOF-marker-support.patch')
-rw-r--r-- | target/linux/generic/pending-4.9/494-mtd-ubi-add-EOF-marker-support.patch | 60 |
1 files changed, 0 insertions, 60 deletions
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 index 0b2314955b..0000000000 --- a/target/linux/generic/pending-4.9/494-mtd-ubi-add-EOF-marker-support.patch +++ /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\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 -@@ -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; |