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author | Karel Kočí <cynerd@email.cz> | 2022-10-15 23:01:29 +0200 |
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committer | Karel Kočí <cynerd@email.cz> | 2022-10-16 13:20:32 +0200 |
commit | 462a088c474832b19ff2730de1e6bea66d399c23 (patch) | |
tree | a512b3b451afde09a9cb06449bd7a3bdc5a8bdb4 /pkgs/patches-linux-5.15/494-mtd-ubi-add-EOF-marker-support.patch | |
parent | d5514ca4aeddc711639f46024528becfff7c2a70 (diff) | |
download | nixturris-462a088c474832b19ff2730de1e6bea66d399c23.tar.gz nixturris-462a088c474832b19ff2730de1e6bea66d399c23.tar.bz2 nixturris-462a088c474832b19ff2730de1e6bea66d399c23.zip |
Add Turris kernel (includes patches from OpenWrt)
Diffstat (limited to 'pkgs/patches-linux-5.15/494-mtd-ubi-add-EOF-marker-support.patch')
-rw-r--r-- | pkgs/patches-linux-5.15/494-mtd-ubi-add-EOF-marker-support.patch | 60 |
1 files changed, 60 insertions, 0 deletions
diff --git a/pkgs/patches-linux-5.15/494-mtd-ubi-add-EOF-marker-support.patch b/pkgs/patches-linux-5.15/494-mtd-ubi-add-EOF-marker-support.patch new file mode 100644 index 0000000..4134317 --- /dev/null +++ b/pkgs/patches-linux-5.15/494-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 +@@ -926,6 +926,13 @@ 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 +@@ -958,9 +965,21 @@ 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 +@@ -778,6 +778,7 @@ 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; |