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| author | Hauke Mehrtens <hauke@hauke-m.de> | 2020-02-23 13:20:11 +0100 |
|---|---|---|
| committer | Koen Vandeputte <koen.vandeputte@ncentric.com> | 2020-02-28 17:50:45 +0100 |
| commit | c16517d26de30c90dabce1e456615fd7fbdce07c (patch) | |
| tree | e7371ee12a3c413a064885b634ee4c975ad7f96a /target/linux/generic/pending-5.4/431-mtd-bcm47xxpart-check-for-bad-blocks-when-calculatin.patch | |
| parent | 955634b473284847e3c8281a6ac85655329d8b06 (diff) | |
| download | upstream-c16517d26de30c90dabce1e456615fd7fbdce07c.tar.gz upstream-c16517d26de30c90dabce1e456615fd7fbdce07c.tar.bz2 upstream-c16517d26de30c90dabce1e456615fd7fbdce07c.zip | |
kernel: copy kernel 4.19 code to 5.4
No changes were done to the patches while coping them. Currently they do
not apply on top of kernel 5.4.
Signed-off-by: Hauke Mehrtens <hauke@hauke-m.de>
Diffstat (limited to 'target/linux/generic/pending-5.4/431-mtd-bcm47xxpart-check-for-bad-blocks-when-calculatin.patch')
| -rw-r--r-- | target/linux/generic/pending-5.4/431-mtd-bcm47xxpart-check-for-bad-blocks-when-calculatin.patch | 68 |
1 files changed, 68 insertions, 0 deletions
diff --git a/target/linux/generic/pending-5.4/431-mtd-bcm47xxpart-check-for-bad-blocks-when-calculatin.patch b/target/linux/generic/pending-5.4/431-mtd-bcm47xxpart-check-for-bad-blocks-when-calculatin.patch new file mode 100644 index 0000000000..d54c284c34 --- /dev/null +++ b/target/linux/generic/pending-5.4/431-mtd-bcm47xxpart-check-for-bad-blocks-when-calculatin.patch @@ -0,0 +1,68 @@ +From: =?UTF-8?q?Rafa=C5=82=20Mi=C5=82ecki?= <zajec5@gmail.com> +Subject: [PATCH] mtd: bcm47xxpart: check for bad blocks when calculating offsets + +Signed-off-by: Rafał Miłecki <zajec5@gmail.com> +--- + +--- a/drivers/mtd/parsers/parser_trx.c ++++ b/drivers/mtd/parsers/parser_trx.c +@@ -29,6 +29,33 @@ struct trx_header { + uint32_t offset[3]; + } __packed; + ++/* ++ * Calculate real end offset (address) for a given amount of data. It checks ++ * all blocks skipping bad ones. ++ */ ++static size_t parser_trx_real_offset(struct mtd_info *mtd, size_t bytes) ++{ ++ size_t real_offset = 0; ++ ++ if (mtd_block_isbad(mtd, real_offset)) ++ pr_warn("Base offset shouldn't be at bad block"); ++ ++ while (bytes >= mtd->erasesize) { ++ bytes -= mtd->erasesize; ++ real_offset += mtd->erasesize; ++ while (mtd_block_isbad(mtd, real_offset)) { ++ real_offset += mtd->erasesize; ++ ++ if (real_offset >= mtd->size) ++ return real_offset - mtd->erasesize; ++ } ++ } ++ ++ real_offset += bytes; ++ ++ return real_offset; ++} ++ + static const char *parser_trx_data_part_name(struct mtd_info *master, + size_t offset) + { +@@ -83,21 +110,21 @@ static int parser_trx_parse(struct mtd_i + if (trx.offset[2]) { + part = &parts[curr_part++]; + part->name = "loader"; +- part->offset = trx.offset[i]; ++ part->offset = parser_trx_real_offset(mtd, trx.offset[i]); + i++; + } + + if (trx.offset[i]) { + part = &parts[curr_part++]; + part->name = "linux"; +- part->offset = trx.offset[i]; ++ part->offset = parser_trx_real_offset(mtd, trx.offset[i]); + i++; + } + + if (trx.offset[i]) { + part = &parts[curr_part++]; +- part->name = parser_trx_data_part_name(mtd, trx.offset[i]); +- part->offset = trx.offset[i]; ++ part->offset = parser_trx_real_offset(mtd, trx.offset[i]); ++ part->name = parser_trx_data_part_name(mtd, part->offset); + i++; + } + |