e72b2464b1
This bumps the 4.4. kernel in master to 4.4.119. Includes more Meltdown & Spectre mitigation. * Refresh patches. * Refresh x86/config for RETPOLINE. * Deleted 8049-PCI-layerscape-Add-fsl-ls2085a-pcie-compatible-ID.patch (accepted upstream) * Deleted 8050-PCI-layerscape-Fix-MSG-TLP-drop-setting.patch (accepted upstream) * Deleted 650-pppoe_header_pad.patch (does not apply anymore (code was replaced)). Bumps from 4.4.112 to 4.4.115 were handled by Kevin Darbyshire-Bryant. Compile-tested on: ar71xx & oxnas. Signed-off-by: Stijn Segers <foss@volatilesystems.org> Tested-by: Rosen Penev <rosenp@gmail.com>
59 lines
1.5 KiB
Diff
59 lines
1.5 KiB
Diff
--- a/init/main.c
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+++ b/init/main.c
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@@ -356,6 +356,29 @@ static inline void setup_nr_cpu_ids(void
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static inline void smp_prepare_cpus(unsigned int maxcpus) { }
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#endif
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+#ifdef CONFIG_MANGLE_BOOTARGS
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+static void __init mangle_bootargs(char *command_line)
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+{
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+ char *rootdev;
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+ char *rootfs;
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+
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+ rootdev = strstr(command_line, "root=/dev/mtdblock");
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+
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+ if (rootdev)
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+ strncpy(rootdev, "mangled_rootblock=", 18);
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+
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+ rootfs = strstr(command_line, "rootfstype");
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+
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+ if (rootfs)
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+ strncpy(rootfs, "mangled_fs", 10);
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+
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+}
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+#else
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+static void __init mangle_bootargs(char *command_line)
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+{
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+}
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+#endif
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+
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/*
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* We need to store the untouched command line for future reference.
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* We also need to store the touched command line since the parameter
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@@ -529,6 +552,7 @@ asmlinkage __visible void __init start_k
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pr_notice("%s", linux_banner);
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setup_arch(&command_line);
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mm_init_cpumask(&init_mm);
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+ mangle_bootargs(command_line);
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setup_command_line(command_line);
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setup_nr_cpu_ids();
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setup_per_cpu_areas();
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--- a/init/Kconfig
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+++ b/init/Kconfig
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@@ -1655,6 +1655,15 @@ config EMBEDDED
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an embedded system so certain expert options are available
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for configuration.
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+config MANGLE_BOOTARGS
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+ bool "Rename offending bootargs"
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+ depends on EXPERT
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+ help
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+ Sometimes the bootloader passed bogus root= and rootfstype=
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+ parameters to the kernel, and while you want to ignore them,
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+ you need to know the values f.e. to support dual firmware
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+ layouts on the flash.
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+
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config HAVE_PERF_EVENTS
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bool
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help
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