openwrt/target/linux/generic/pending-6.6/920-mangle_bootargs.patch
John Audia dceb5938f8 kernel: bump 6.6 to 6.6.29
Changelog: https://cdn.kernel.org/pub/linux/kernel/v6.x/ChangeLog-6.6.29

Removed upstreamed:
	generic/backport-6.6/740-v6.9-01-netfilter-flowtable-validate-pppoe-header.patch[1]
	generic/backport-6.6/740-v6.9-02-netfilter-flowtable-incorrect-pppoe-tuple.patch[2]
	generic/backport-6.6/790-29-v6.9-net-dsa-mt7530-fix-improper-frames-on-all-25MHz-and-.patch[3]
	generic/backport-6.6/790-31-v6.10-net-dsa-mt7530-fix-enabling-EEE-on-MT7531-switch-on-.patch[4]
	generic/backport-6.6/790-34-v6.10-net-dsa-mt7530-fix-mirroring-frames-received-on-loca.patch[5]
	generic/backport-6.6/790-35-v6.10-net-dsa-mt7530-fix-port-mirroring-for-MT7988-SoC-swi.patch[6]
	mediatek/patches-6.6/963-net-ethernet-mtk_eth_soc-fix-WED-wifi-reset.patch[7]

Manually rebased:
	generic/backport-6.6/790-23-v6.9-net-dsa-mt7530-get-rid-of-priv-info-cpu_port_config.patch

All other patches automatically rebased.

1. https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git/commit/?h=v6.6.29&id=a2471d271042ea18e8a6babc132a8716bb2f08b9
2. https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git/commit/?h=v6.6.29&id=4ed82dd368ad883dc4284292937b882f044e625d
3. https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git/commit/?h=v6.6.29&id=21b9d89d93422221cdda1b82fd075fa3c94a11d9
4. https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git/commit/?h=v6.6.29&id=bd41ee1efd478852a0882ce5f136bc2b5e83eff2
5. https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git/commit/?h=v6.6.29&id=d1be3960539249a8690ed09a29d0e3bf34189dd2
6. https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git/commit/?h=v6.6.29&id=f8de1b6208bf71bd3102548d33dd8475573ad2ea
7. https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git/commit/?h=v6.6.29&id=6855f724f19620c3ddff57c349e0abba797475b1

Build system: x86/64
Build-tested: x86/64/AMD Cezanne, flogic/xiaomi_redmi-router-ax6000-ubootmod, ramips/tplink_archer-a6-v3
Run-tested: x86/64/AMD Cezanne, flogic/xiaomi_redmi-router-ax6000-ubootmod, ramips/tplink_archer-a6-v3

Signed-off-by: John Audia <therealgraysky@proton.me>
2024-04-28 21:51:03 +02:00

72 lines
1.8 KiB
Diff

From: Imre Kaloz <kaloz@openwrt.org>
Subject: init: add CONFIG_MANGLE_BOOTARGS and disable it by default
Enabling this option renames the bootloader supplied root=
and rootfstype= variables, which might have to be know but
would break the automatisms OpenWrt uses.
Signed-off-by: Imre Kaloz <kaloz@openwrt.org>
---
init/Kconfig | 9 +++++++++
init/main.c | 24 ++++++++++++++++++++++++
2 files changed, 33 insertions(+)
--- a/init/Kconfig
+++ b/init/Kconfig
@@ -1811,6 +1811,15 @@ config DEBUG_RSEQ
If unsure, say N.
+config MANGLE_BOOTARGS
+ bool "Rename offending bootargs"
+ depends on EXPERT
+ help
+ Sometimes the bootloader passed bogus root= and rootfstype=
+ parameters to the kernel, and while you want to ignore them,
+ you need to know the values f.e. to support dual firmware
+ layouts on the flash.
+
config HAVE_PERF_EVENTS
bool
help
--- a/init/main.c
+++ b/init/main.c
@@ -609,6 +609,29 @@ static inline void setup_nr_cpu_ids(void
static inline void smp_prepare_cpus(unsigned int maxcpus) { }
#endif
+#ifdef CONFIG_MANGLE_BOOTARGS
+static void __init mangle_bootargs(char *command_line)
+{
+ char *rootdev;
+ char *rootfs;
+
+ rootdev = strstr(command_line, "root=/dev/mtdblock");
+
+ if (rootdev)
+ strncpy(rootdev, "mangled_rootblock=", 18);
+
+ rootfs = strstr(command_line, "rootfstype");
+
+ if (rootfs)
+ strncpy(rootfs, "mangled_fs", 10);
+
+}
+#else
+static void __init mangle_bootargs(char *command_line)
+{
+}
+#endif
+
/*
* We need to store the untouched command line for future reference.
* We also need to store the touched command line since the parameter
@@ -898,6 +921,7 @@ void start_kernel(void)
pr_notice("%s", linux_banner);
early_security_init();
setup_arch(&command_line);
+ mangle_bootargs(command_line);
setup_boot_config();
setup_command_line(command_line);
setup_nr_cpu_ids();