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0621d89c62
Removed because they are upstream: generic/backport-5.10/702-v5.19-01-arm64-dts-mediatek-mt7622-add-support-for-coherent-D.patch https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git/commit/?h=linux-5.10.y&id=57ff09043fa1e5ed53c7bb33da595a84a1b7d4c5 generic/backport-5.10/702-v5.19-04-arm64-dts-mediatek-mt7622-introduce-nodes-for-Wirele.patch https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git/commit/?h=linux-5.10.y&id=136c8e0169dfda05dc1b882aba88f89c0c2fa169 Manually adapted: generic/pending-5.10/680-NET-skip-GRO-for-foreign-MAC-addresses.patch Signed-off-by: Hauke Mehrtens <hauke@hauke-m.de>
72 lines
1.9 KiB
Diff
72 lines
1.9 KiB
Diff
From: Imre Kaloz <kaloz@openwrt.org>
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Subject: init: add CONFIG_MANGLE_BOOTARGS and disable it by default
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Enabling this option renames the bootloader supplied root=
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and rootfstype= variables, which might have to be know but
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would break the automatisms OpenWrt uses.
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Signed-off-by: Imre Kaloz <kaloz@openwrt.org>
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---
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init/Kconfig | 9 +++++++++
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init/main.c | 24 ++++++++++++++++++++++++
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2 files changed, 33 insertions(+)
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--- a/init/Kconfig
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+++ b/init/Kconfig
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@@ -1817,6 +1817,15 @@ 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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--- a/init/main.c
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+++ b/init/main.c
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@@ -606,6 +606,29 @@ 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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@@ -868,6 +891,7 @@ asmlinkage __visible void __init __no_sa
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pr_notice("%s", linux_banner);
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early_security_init();
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setup_arch(&command_line);
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+ mangle_bootargs(command_line);
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setup_boot_config(command_line);
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setup_command_line(command_line);
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setup_nr_cpu_ids();
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