mirror of
https://github.com/openwrt/openwrt.git
synced 2024-11-23 01:45:38 +08:00
kernel: mtd: parser: cmdline: Fix parsing of part-names with colons
Some devices (especially QCA ones) are already using hardcoded partition
names with colons in it. The OpenMesh A62 for example provides following
mtd relevant information via cmdline:
root=31:11 mtdparts=spi0.0:256k(0:SBL1),128k(0:MIBIB),384k(0:QSEE),64k(0:CDT),64k(0:DDRPARAMS),64k(0:APPSBLENV),512k(0:APPSBL),64k(0:ART),64k(custom),64k(0:KEYS),0x002b0000(kernel),0x00c80000(rootfs),15552k(inactive) rootfsname=rootfs rootwait
The change to split only on the last colon between mtd-id and partitions
will cause newpart to see following string for the first partition:
KEYS),0x002b0000(kernel),0x00c80000(rootfs),15552k(inactive)
Such a partition list cannot be parsed and thus the device fails to boot.
Avoid this behavior by making sure that the start of the first part-name
("(") will also be the last byte the mtd-id split algorithm is using for
its colon search.
Fixes: 5d01d05608 ("kernel: Update kernel 4.14 to version 4.14.202")
Fixes: edda06c7b4 ("kernel: Update kernel 4.9 to version 4.9.240")
Signed-off-by: Sven Eckelmann <sven@narfation.org>
(backported from commit 223eec7e81)
This commit is contained in:
Sven Eckelmann
parent
0e25552dd8
commit
9f2a40c72f
@ -0,0 +1,63 @@
|
||||
From: Sven Eckelmann <sven@narfation.org>
|
||||
Date: Sun, 22 Nov 2020 00:48:33 +0100
|
||||
Subject: [PATCH RFC] mtd: parser: cmdline: Fix parsing of part-names with colons
|
||||
|
||||
Some devices (especially QCA ones) are already using hardcoded partition
|
||||
names with colons in it. The OpenMesh A62 for example provides following
|
||||
mtd relevant information via cmdline:
|
||||
|
||||
root=31:11 mtdparts=spi0.0:256k(0:SBL1),128k(0:MIBIB),384k(0:QSEE),64k(0:CDT),64k(0:DDRPARAMS),64k(0:APPSBLENV),512k(0:APPSBL),64k(0:ART),64k(custom),64k(0:KEYS),0x002b0000(kernel),0x00c80000(rootfs),15552k(inactive) rootfsname=rootfs rootwait
|
||||
|
||||
The change to split only on the last colon between mtd-id and partitions
|
||||
will cause newpart to see following string for the first partition:
|
||||
|
||||
KEYS),0x002b0000(kernel),0x00c80000(rootfs),15552k(inactive)
|
||||
|
||||
Such a partition list cannot be parsed and thus the device fails to boot.
|
||||
|
||||
Avoid this behavior by making sure that the start of the first part-name
|
||||
("(") will also be the last byte the mtd-id split algorithm is using for
|
||||
its colon search.
|
||||
|
||||
Forwarded: https://patchwork.ozlabs.org/project/linux-mtd/patch/20201122001533.985641-1-sven@narfation.org/
|
||||
Fixes: eb13fa022741 ("mtd: parser: cmdline: Support MTD names containing one or more colons")
|
||||
Signed-off-by: Sven Eckelmann <sven@narfation.org>
|
||||
|
||||
diff --git a/drivers/mtd/cmdlinepart.c b/drivers/mtd/cmdlinepart.c
|
||||
index 0625b25620ca766318ea4646a6e3761ff4d3a4cc..22881ea4c132ea5a5ba7aebd025d91bf1cd023af 100644
|
||||
--- a/drivers/mtd/cmdlinepart.c
|
||||
+++ b/drivers/mtd/cmdlinepart.c
|
||||
@@ -218,7 +218,7 @@ static int mtdpart_setup_real(char *s)
|
||||
struct cmdline_mtd_partition *this_mtd;
|
||||
struct mtd_partition *parts;
|
||||
int mtd_id_len, num_parts;
|
||||
- char *p, *mtd_id, *semicol;
|
||||
+ char *p, *mtd_id, *semicol, *open_parenth;
|
||||
|
||||
/*
|
||||
* Replace the first ';' by a NULL char so strrchr can work
|
||||
@@ -228,6 +228,13 @@ static int mtdpart_setup_real(char *s)
|
||||
if (semicol)
|
||||
*semicol = '\0';
|
||||
|
||||
+ /* make sure that part-names with ":" will not be handled as
|
||||
+ * part of the mtd-id with an ":"
|
||||
+ */
|
||||
+ open_parenth = strchr(s, '(');
|
||||
+ if (open_parenth)
|
||||
+ *open_parenth = '\0';
|
||||
+
|
||||
mtd_id = s;
|
||||
|
||||
/*
|
||||
@@ -237,6 +244,10 @@ static int mtdpart_setup_real(char *s)
|
||||
*/
|
||||
p = strrchr(s, ':');
|
||||
|
||||
+ /* Restore the '(' now. */
|
||||
+ if (open_parenth)
|
||||
+ *open_parenth = '(';
|
||||
+
|
||||
/* Restore the ';' now. */
|
||||
if (semicol)
|
||||
*semicol = ';';
|
||||
@ -0,0 +1,63 @@
|
||||
From: Sven Eckelmann <sven@narfation.org>
|
||||
Date: Sun, 22 Nov 2020 00:48:33 +0100
|
||||
Subject: [PATCH RFC] mtd: parser: cmdline: Fix parsing of part-names with colons
|
||||
|
||||
Some devices (especially QCA ones) are already using hardcoded partition
|
||||
names with colons in it. The OpenMesh A62 for example provides following
|
||||
mtd relevant information via cmdline:
|
||||
|
||||
root=31:11 mtdparts=spi0.0:256k(0:SBL1),128k(0:MIBIB),384k(0:QSEE),64k(0:CDT),64k(0:DDRPARAMS),64k(0:APPSBLENV),512k(0:APPSBL),64k(0:ART),64k(custom),64k(0:KEYS),0x002b0000(kernel),0x00c80000(rootfs),15552k(inactive) rootfsname=rootfs rootwait
|
||||
|
||||
The change to split only on the last colon between mtd-id and partitions
|
||||
will cause newpart to see following string for the first partition:
|
||||
|
||||
KEYS),0x002b0000(kernel),0x00c80000(rootfs),15552k(inactive)
|
||||
|
||||
Such a partition list cannot be parsed and thus the device fails to boot.
|
||||
|
||||
Avoid this behavior by making sure that the start of the first part-name
|
||||
("(") will also be the last byte the mtd-id split algorithm is using for
|
||||
its colon search.
|
||||
|
||||
Forwarded: https://patchwork.ozlabs.org/project/linux-mtd/patch/20201122001533.985641-1-sven@narfation.org/
|
||||
Fixes: eb13fa022741 ("mtd: parser: cmdline: Support MTD names containing one or more colons")
|
||||
Signed-off-by: Sven Eckelmann <sven@narfation.org>
|
||||
|
||||
diff --git a/drivers/mtd/cmdlinepart.c b/drivers/mtd/cmdlinepart.c
|
||||
index 0625b25620ca766318ea4646a6e3761ff4d3a4cc..22881ea4c132ea5a5ba7aebd025d91bf1cd023af 100644
|
||||
--- a/drivers/mtd/cmdlinepart.c
|
||||
+++ b/drivers/mtd/cmdlinepart.c
|
||||
@@ -218,7 +218,7 @@ static int mtdpart_setup_real(char *s)
|
||||
struct cmdline_mtd_partition *this_mtd;
|
||||
struct mtd_partition *parts;
|
||||
int mtd_id_len, num_parts;
|
||||
- char *p, *mtd_id, *semicol;
|
||||
+ char *p, *mtd_id, *semicol, *open_parenth;
|
||||
|
||||
/*
|
||||
* Replace the first ';' by a NULL char so strrchr can work
|
||||
@@ -228,6 +228,13 @@ static int mtdpart_setup_real(char *s)
|
||||
if (semicol)
|
||||
*semicol = '\0';
|
||||
|
||||
+ /* make sure that part-names with ":" will not be handled as
|
||||
+ * part of the mtd-id with an ":"
|
||||
+ */
|
||||
+ open_parenth = strchr(s, '(');
|
||||
+ if (open_parenth)
|
||||
+ *open_parenth = '\0';
|
||||
+
|
||||
mtd_id = s;
|
||||
|
||||
/*
|
||||
@@ -237,6 +244,10 @@ static int mtdpart_setup_real(char *s)
|
||||
*/
|
||||
p = strrchr(s, ':');
|
||||
|
||||
+ /* Restore the '(' now. */
|
||||
+ if (open_parenth)
|
||||
+ *open_parenth = '(';
|
||||
+
|
||||
/* Restore the ';' now. */
|
||||
if (semicol)
|
||||
*semicol = ';';
|
||||
Loading…
Reference in New Issue
Block a user