diff options
| -rw-r--r-- | target/linux/bcm53xx/patches-5.4/140-mtd-parsers-trx-parse-firmware-MTD-partitions-only.patch | 43 |
1 files changed, 43 insertions, 0 deletions
diff --git a/target/linux/bcm53xx/patches-5.4/140-mtd-parsers-trx-parse-firmware-MTD-partitions-only.patch b/target/linux/bcm53xx/patches-5.4/140-mtd-parsers-trx-parse-firmware-MTD-partitions-only.patch new file mode 100644 index 0000000000..fa86303637 --- /dev/null +++ b/target/linux/bcm53xx/patches-5.4/140-mtd-parsers-trx-parse-firmware-MTD-partitions-only.patch @@ -0,0 +1,43 @@ +From: =?UTF-8?q?Rafa=C5=82=20Mi=C5=82ecki?= <rafal@milecki.pl> +Date: Tue, 13 Apr 2021 18:25:20 +0200 +Subject: [PATCH] mtd: parsers: trx: parse "firmware" MTD partitions only +MIME-Version: 1.0 +Content-Type: text/plain; charset=UTF-8 +Content-Transfer-Encoding: 8bit + +Parsing every partition with "compatible" set to "brcm,trx" results in +parsing both: firmware partition and failsafe partition on devices that +implement failsafe booting. This affects e.g. Linksys EA9500 which has: + +partition@200000 { + reg = <0x0200000 0x01d00000>; + compatible = "linksys,ns-firmware", "brcm,trx"; +}; + +partition@1f00000 { + reg = <0x01f00000 0x01d00000>; + compatible = "linksys,ns-firmware", "brcm,trx"; +}; + +Check for MTD partition name "firmware" before parsing. Recently added +ofpart_linksys_ns.c creates "firmware" and "failsafe" depending on +bootloader setup. + +Signed-off-by: Rafał Miłecki <rafal@milecki.pl> +--- + drivers/mtd/parsers/parser_trx.c | 4 ++++ + 1 file changed, 4 insertions(+) + +--- a/drivers/mtd/parsers/parser_trx.c ++++ b/drivers/mtd/parsers/parser_trx.c +@@ -85,6 +85,10 @@ static int parser_trx_parse(struct mtd_i + uint8_t curr_part = 0, i = 0; + int err; + ++ /* Don't parse any failsafe / backup partitions */ ++ if (strcmp(mtd->name, "firmware")) ++ return -EINVAL; ++ + parts = kcalloc(TRX_PARSER_MAX_PARTS, sizeof(struct mtd_partition), + GFP_KERNEL); + if (!parts) |