diff options
Diffstat (limited to 'pkgs/patches-linux-5.15/431-mtd-bcm47xxpart-check-for-bad-blocks-when-calculatin.patch')
| -rw-r--r-- | pkgs/patches-linux-5.15/431-mtd-bcm47xxpart-check-for-bad-blocks-when-calculatin.patch | 68 |
1 files changed, 68 insertions, 0 deletions
diff --git a/pkgs/patches-linux-5.15/431-mtd-bcm47xxpart-check-for-bad-blocks-when-calculatin.patch b/pkgs/patches-linux-5.15/431-mtd-bcm47xxpart-check-for-bad-blocks-when-calculatin.patch new file mode 100644 index 0000000..bcea45d --- /dev/null +++ b/pkgs/patches-linux-5.15/431-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 +@@ -25,6 +25,33 @@ 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) + { +@@ -86,21 +113,21 @@ 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++; + } + |