--- a/init/main.c +++ b/init/main.c @@ -368,6 +368,26 @@ static void __init setup_command_line(ch strcpy(static_command_line, command_line); } +#ifdef CONFIG_MANGLE_BOOTARGS +static void __init mangle_bootargs(char *command_line) +{ + char *rootdev; + char *rootfs; + + rootdev = strstr(command_line, "root=/dev/mtdblock"); + strncpy(rootdev, "mangled_rootblock=", 18); + + rootfs = strstr(command_line, "rootfstype"); + strncpy(rootfs, "mangled_fs", 10); + +} +#else +static void __init mangle_bootargs(char *command_line) +{ +} +#endif + + /* * We need to finalize in a non-__init function or else race conditions * between the root thread and the init thread may cause start_kernel to @@ -519,6 +539,7 @@ asmlinkage __visible void __init start_k pr_notice("%s", linux_banner); setup_arch(&command_line); mm_init_cpumask(&init_mm); + mangle_bootargs(command_line); setup_command_line(command_line); setup_nr_cpu_ids(); setup_per_cpu_areas(); --- a/init/Kconfig +++ b/init/Kconfig @@ -1583,6 +1583,15 @@ config EMBEDDED an embedded system so certain expert options are available for configuration. +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 penwrt-18.06'>openwrt-18.06 upstream openwrtJames
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path: root/target/linux/ipq806x/patches-4.4/097-1-usb-dwc3-add-generic-OF-glue-layer.patch
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