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Deleted (upstreamed): generic/backport-5.15/400-mtdblock-warn-if-opened-on-NAND.patch [01] generic/backport-5.15/420-v5.19-01-mtd-spinand-gigadevice-fix-Quad-IO-for-GD5F1GQ5UExxG.patch [02] bcm27xx/patches-5.15/950-0029-Revert-mailbox-avoid-timer-start-from-callback.patch [03] bcm27xx/patches-5.15/950-0417-bcm2711_thermal-Don-t-clamp-temperature-at-zero.patch [04] bcm27xx/patches-5.15/950-0740-drm-vc4-hvs-Fix-frame-count-register-readout.patch [05] bcm27xx/patches-5.15/950-0755-drm-vc4-hvs-Reset-muxes-at-probe-time.patch [06] bcm27xx/patches-5.15/950-0759-drm-vc4-txp-Don-t-set-TXP_VSTART_AT_EOF.patch [07] bcm27xx/patches-5.15/950-0760-drm-vc4-txp-Force-alpha-to-be-0xff-if-it-s-disabled.patch [08] bcm53xx/patches-5.15/031-v5.17-0005-ARM-dts-BCM5301X-update-CRU-block-description.patch [09] mediatek/patches-5.15/102-mt7629-enable-arch-timer.patch [10] Manually rebased: bcm27xx/patches-5.15/950-0741-drm-vc4-hvs-Use-pointer-to-HVS-in-HVS_READ-and-HVS_W.patch [01] https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git/commit/?h=v5.15.46&id=f41c9418c5898c01634675150696da290fb86796 [02] https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git/commit/?h=v5.15.46&id=d5b66645305c6f3a1b2cf75cee4157b07f293309 [03] https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git/commit/?h=v5.15.46&id=119f99209d8531359bcb935f252ec435f9d21b13 [04] https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git/commit/?h=v5.15.46&id=c4e1280abead1552e1764684079a43e222ccd163 [05] https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git/commit/?h=v5.15.46&id=08465a1889cb48ec64431e9db745b5be15399251 [06] https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git/commit/?h=v5.15.46&id=0e26a6da02e63b75b629573d13966c36aa6264f0 [07] https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git/commit/?h=v5.15.46&id=01c9020b2e7c85e394879f34851805179ac3d1d8 [08] https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git/commit/?h=v5.15.46&id=d47f85cc0171a5d3c5bd8cbb8a98983ca3357cbd [09] https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git/commit/?h=v5.15.46&id=5151f24ac937ff7eb1f078257c66e3c0f0296010 [10] https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git/commit/?h=v5.15.46&id=ffea838686b82fbb2801cdfad6ba5309d15c032d Signed-off-by: Rui Salvaterra <rsalvaterra@gmail.com>
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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@@ -1810,6 +1810,15 @@ 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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@@ -615,6 +615,29 @@ 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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@@ -955,6 +978,7 @@ 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();
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setup_command_line(command_line);
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setup_nr_cpu_ids();
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