From 74d00a8c3849c1340efd713eb94b786e304c201f Mon Sep 17 00:00:00 2001 From: John Crispin Date: Sun, 25 Dec 2016 20:11:34 +0100 Subject: kernel: split patches folder up into backport, pending and hack folders * properly format/comment all patches * merge debloat patches * merge Kconfig patches * merge swconfig patches * merge hotplug patches * drop 200-fix_localversion.patch - upstream * drop 222-arm_zimage_none.patch - unused * drop 252-mv_cesa_depends.patch - no longer required * drop 410-mtd-move-forward-declaration-of-struct-mtd_info.patch - unused * drop 661-fq_codel_keep_dropped_stats.patch - outdated * drop 702-phy_add_aneg_done_function.patch - upstream * drop 840-rtc7301.patch - unused * drop 841-rtc_pt7c4338.patch - upstream * drop 921-use_preinit_as_init.patch - unused * drop spio-gpio-old and gpio-mmc - unused Signed-off-by: John Crispin --- .../494-mtd-ubi-add-EOF-marker-support.patch | 67 ++++++++++++++++++++++ 1 file changed, 67 insertions(+) create mode 100644 target/linux/generic/pending-4.9/494-mtd-ubi-add-EOF-marker-support.patch (limited to '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 new file mode 100644 index 0000000000..b681fc6a07 --- /dev/null +++ b/target/linux/generic/pending-4.9/494-mtd-ubi-add-EOF-marker-support.patch @@ -0,0 +1,67 @@ +From: Gabor Juhos +Subject: mtd: add EOF marker support to the UBI layer + +Signed-off-by: Gabor Juhos +--- + drivers/mtd/ubi/attach.c | 25 ++++++++++++++++++++++--- + drivers/mtd/ubi/ubi.h | 1 + + 2 files changed, 23 insertions(+), 3 deletions(-) + +diff --git a/drivers/mtd/ubi/attach.c b/drivers/mtd/ubi/attach.c +index 93ceea4f27d5..a4f849d69104 100644 +--- 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 *ubi, struct ubi_attach_info *ai, + 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; +diff --git a/drivers/mtd/ubi/ubi.h b/drivers/mtd/ubi/ubi.h +index 697dbcba7371..92d207ff2458 100644 +--- 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; +-- +2.11.0 + -- cgit v1.2.3