linux: update 5.4.x

1 files changed, 0 insertions, 1265 deletions

diff --git a/target/linux/patches/5.4.69/startup.patch b/target/linux/patches/5.4.69/startup.patch
deleted file mode 100644
index e2f2ae65a..000000000
--- a/target/linux/patches/5.4.69/startup.patch
+++ /dev/null
@@ -1,1265 +0,0 @@
-diff -Nur linux-5.4.69.orig/init/initramfs.c linux-5.4.69/init/initramfs.c
---- linux-5.4.69.orig/init/initramfs.c	2020-10-01 13:19:27.000000000 +0200
-+++ linux-5.4.69/init/initramfs.c	2020-10-31 02:34:40.814412219 +0100
-@@ -674,6 +674,9 @@
- 	initrd_start = 0;
- 	initrd_end = 0;
- 
-+#ifdef CONFIG_DEVTMPFS_MOUNT
-+	devtmpfs_mount("dev");
-+#endif
- 	flush_delayed_fput();
- 	return 0;
- }
-diff -Nur linux-5.4.69.orig/init/main.c linux-5.4.69/init/main.c
---- linux-5.4.69.orig/init/main.c	2020-10-01 13:19:27.000000000 +0200
-+++ linux-5.4.69/init/main.c	2020-10-31 02:32:35.699678836 +0100
-@@ -1198,6 +1198,8 @@
- 	if (ksys_open((const char __user *) "/dev/console", O_RDWR, 0) < 0)
- 		pr_err("Warning: unable to open an initial console.\n");
- 
-+	printk(KERN_WARNING "Starting Linux (built with OpenADK).\n");
-+
- 	(void) ksys_dup(0);
- 	(void) ksys_dup(0);
- 	/*
-@@ -1206,7 +1208,7 @@
- 	 */
- 
- 	if (!ramdisk_execute_command)
--		ramdisk_execute_command = "/init";
-+		ramdisk_execute_command = "/sbin/init";
- 
- 	if (ksys_access((const char __user *)
- 			ramdisk_execute_command, 0) != 0) {
-diff -Nur linux-5.4.69.orig/init/main.c.orig linux-5.4.69/init/main.c.orig
---- linux-5.4.69.orig/init/main.c.orig	1970-01-01 01:00:00.000000000 +0100
-+++ linux-5.4.69/init/main.c.orig	2020-10-01 13:19:27.000000000 +0200
-@@ -0,0 +1,1227 @@
-+// SPDX-License-Identifier: GPL-2.0-only
-+/*
-+ *  linux/init/main.c
-+ *
-+ *  Copyright (C) 1991, 1992  Linus Torvalds
-+ *
-+ *  GK 2/5/95  -  Changed to support mounting root fs via NFS
-+ *  Added initrd & change_root: Werner Almesberger & Hans Lermen, Feb '96
-+ *  Moan early if gcc is old, avoiding bogus kernels - Paul Gortmaker, May '96
-+ *  Simplified starting of init:  Michael A. Griffith <grif@acm.org>
-+ */
-+
-+#define DEBUG		/* Enable initcall_debug */
-+
-+#include <linux/types.h>
-+#include <linux/extable.h>
-+#include <linux/module.h>
-+#include <linux/proc_fs.h>
-+#include <linux/binfmts.h>
-+#include <linux/kernel.h>
-+#include <linux/syscalls.h>
-+#include <linux/stackprotector.h>
-+#include <linux/string.h>
-+#include <linux/ctype.h>
-+#include <linux/delay.h>
-+#include <linux/ioport.h>
-+#include <linux/init.h>
-+#include <linux/initrd.h>
-+#include <linux/memblock.h>
-+#include <linux/acpi.h>
-+#include <linux/console.h>
-+#include <linux/nmi.h>
-+#include <linux/percpu.h>
-+#include <linux/kmod.h>
-+#include <linux/kprobes.h>
-+#include <linux/vmalloc.h>
-+#include <linux/kernel_stat.h>
-+#include <linux/start_kernel.h>
-+#include <linux/security.h>
-+#include <linux/smp.h>
-+#include <linux/profile.h>
-+#include <linux/rcupdate.h>
-+#include <linux/moduleparam.h>
-+#include <linux/kallsyms.h>
-+#include <linux/writeback.h>
-+#include <linux/cpu.h>
-+#include <linux/cpuset.h>
-+#include <linux/cgroup.h>
-+#include <linux/efi.h>
-+#include <linux/tick.h>
-+#include <linux/sched/isolation.h>
-+#include <linux/interrupt.h>
-+#include <linux/taskstats_kern.h>
-+#include <linux/delayacct.h>
-+#include <linux/unistd.h>
-+#include <linux/utsname.h>
-+#include <linux/rmap.h>
-+#include <linux/mempolicy.h>
-+#include <linux/key.h>
-+#include <linux/buffer_head.h>
-+#include <linux/page_ext.h>
-+#include <linux/debug_locks.h>
-+#include <linux/debugobjects.h>
-+#include <linux/lockdep.h>
-+#include <linux/kmemleak.h>
-+#include <linux/pid_namespace.h>
-+#include <linux/device.h>
-+#include <linux/kthread.h>
-+#include <linux/sched.h>
-+#include <linux/sched/init.h>
-+#include <linux/signal.h>
-+#include <linux/idr.h>
-+#include <linux/kgdb.h>
-+#include <linux/ftrace.h>
-+#include <linux/async.h>
-+#include <linux/sfi.h>
-+#include <linux/shmem_fs.h>
-+#include <linux/slab.h>
-+#include <linux/perf_event.h>
-+#include <linux/ptrace.h>
-+#include <linux/pti.h>
-+#include <linux/blkdev.h>
-+#include <linux/elevator.h>
-+#include <linux/sched/clock.h>
-+#include <linux/sched/task.h>
-+#include <linux/sched/task_stack.h>
-+#include <linux/context_tracking.h>
-+#include <linux/random.h>
-+#include <linux/list.h>
-+#include <linux/integrity.h>
-+#include <linux/proc_ns.h>
-+#include <linux/io.h>
-+#include <linux/cache.h>
-+#include <linux/rodata_test.h>
-+#include <linux/jump_label.h>
-+#include <linux/mem_encrypt.h>
-+
-+#include <asm/io.h>
-+#include <asm/bugs.h>
-+#include <asm/setup.h>
-+#include <asm/sections.h>
-+#include <asm/cacheflush.h>
-+
-+#define CREATE_TRACE_POINTS
-+#include <trace/events/initcall.h>
-+
-+static int kernel_init(void *);
-+
-+extern void init_IRQ(void);
-+extern void radix_tree_init(void);
-+
-+/*
-+ * Debug helper: via this flag we know that we are in 'early bootup code'
-+ * where only the boot processor is running with IRQ disabled.  This means
-+ * two things - IRQ must not be enabled before the flag is cleared and some
-+ * operations which are not allowed with IRQ disabled are allowed while the
-+ * flag is set.
-+ */
-+bool early_boot_irqs_disabled __read_mostly;
-+
-+enum system_states system_state __read_mostly;
-+EXPORT_SYMBOL(system_state);
-+
-+/*
-+ * Boot command-line arguments
-+ */
-+#define MAX_INIT_ARGS CONFIG_INIT_ENV_ARG_LIMIT
-+#define MAX_INIT_ENVS CONFIG_INIT_ENV_ARG_LIMIT
-+
-+extern void time_init(void);
-+/* Default late time init is NULL. archs can override this later. */
-+void (*__initdata late_time_init)(void);
-+
-+/* Untouched command line saved by arch-specific code. */
-+char __initdata boot_command_line[COMMAND_LINE_SIZE];
-+/* Untouched saved command line (eg. for /proc) */
-+char *saved_command_line;
-+/* Command line for parameter parsing */
-+static char *static_command_line;
-+/* Command line for per-initcall parameter parsing */
-+static char *initcall_command_line;
-+
-+static char *execute_command;
-+static char *ramdisk_execute_command;
-+
-+/*
-+ * Used to generate warnings if static_key manipulation functions are used
-+ * before jump_label_init is called.
-+ */
-+bool static_key_initialized __read_mostly;
-+EXPORT_SYMBOL_GPL(static_key_initialized);
-+
-+/*
-+ * If set, this is an indication to the drivers that reset the underlying
-+ * device before going ahead with the initialization otherwise driver might
-+ * rely on the BIOS and skip the reset operation.
-+ *
-+ * This is useful if kernel is booting in an unreliable environment.
-+ * For ex. kdump situation where previous kernel has crashed, BIOS has been
-+ * skipped and devices will be in unknown state.
-+ */
-+unsigned int reset_devices;
-+EXPORT_SYMBOL(reset_devices);
-+
-+static int __init set_reset_devices(char *str)
-+{
-+	reset_devices = 1;
-+	return 1;
-+}
-+
-+__setup("reset_devices", set_reset_devices);
-+
-+static const char *argv_init[MAX_INIT_ARGS+2] = { "init", NULL, };
-+const char *envp_init[MAX_INIT_ENVS+2] = { "HOME=/", "TERM=linux", NULL, };
-+static const char *panic_later, *panic_param;
-+
-+extern const struct obs_kernel_param __setup_start[], __setup_end[];
-+
-+static bool __init obsolete_checksetup(char *line)
-+{
-+	const struct obs_kernel_param *p;
-+	bool had_early_param = false;
-+
-+	p = __setup_start;
-+	do {
-+		int n = strlen(p->str);
-+		if (parameqn(line, p->str, n)) {
-+			if (p->early) {
-+				/* Already done in parse_early_param?
-+				 * (Needs exact match on param part).
-+				 * Keep iterating, as we can have early
-+				 * params and __setups of same names 8( */
-+				if (line[n] == '\0' || line[n] == '=')
-+					had_early_param = true;
-+			} else if (!p->setup_func) {
-+				pr_warn("Parameter %s is obsolete, ignored\n",
-+					p->str);
-+				return true;
-+			} else if (p->setup_func(line + n))
-+				return true;
-+		}
-+		p++;
-+	} while (p < __setup_end);
-+
-+	return had_early_param;
-+}
-+
-+/*
-+ * This should be approx 2 Bo*oMips to start (note initial shift), and will
-+ * still work even if initially too large, it will just take slightly longer
-+ */
-+unsigned long loops_per_jiffy = (1<<12);
-+EXPORT_SYMBOL(loops_per_jiffy);
-+
-+static int __init debug_kernel(char *str)
-+{
-+	console_loglevel = CONSOLE_LOGLEVEL_DEBUG;
-+	return 0;
-+}
-+
-+static int __init quiet_kernel(char *str)
-+{
-+	console_loglevel = CONSOLE_LOGLEVEL_QUIET;
-+	return 0;
-+}
-+
-+early_param("debug", debug_kernel);
-+early_param("quiet", quiet_kernel);
-+
-+static int __init loglevel(char *str)
-+{
-+	int newlevel;
-+
-+	/*
-+	 * Only update loglevel value when a correct setting was passed,
-+	 * to prevent blind crashes (when loglevel being set to 0) that
-+	 * are quite hard to debug
-+	 */
-+	if (get_option(&str, &newlevel)) {
-+		console_loglevel = newlevel;
-+		return 0;
-+	}
-+
-+	return -EINVAL;
-+}
-+
-+early_param("loglevel", loglevel);
-+
-+/* Change NUL term back to "=", to make "param" the whole string. */
-+static int __init repair_env_string(char *param, char *val,
-+				    const char *unused, void *arg)
-+{
-+	if (val) {
-+		/* param=val or param="val"? */
-+		if (val == param+strlen(param)+1)
-+			val[-1] = '=';
-+		else if (val == param+strlen(param)+2) {
-+			val[-2] = '=';
-+			memmove(val-1, val, strlen(val)+1);
-+			val--;
-+		} else
-+			BUG();
-+	}
-+	return 0;
-+}
-+
-+/* Anything after -- gets handed straight to init. */
-+static int __init set_init_arg(char *param, char *val,
-+			       const char *unused, void *arg)
-+{
-+	unsigned int i;
-+
-+	if (panic_later)
-+		return 0;
-+
-+	repair_env_string(param, val, unused, NULL);
-+
-+	for (i = 0; argv_init[i]; i++) {
-+		if (i == MAX_INIT_ARGS) {
-+			panic_later = "init";
-+			panic_param = param;
-+			return 0;
-+		}
-+	}
-+	argv_init[i] = param;
-+	return 0;
-+}
-+
-+/*
-+ * Unknown boot options get handed to init, unless they look like
-+ * unused parameters (modprobe will find them in /proc/cmdline).
-+ */
-+static int __init unknown_bootoption(char *param, char *val,
-+				     const char *unused, void *arg)
-+{
-+	repair_env_string(param, val, unused, NULL);
-+
-+	/* Handle obsolete-style parameters */
-+	if (obsolete_checksetup(param))
-+		return 0;
-+
-+	/* Unused module parameter. */
-+	if (strchr(param, '.') && (!val || strchr(param, '.') < val))
-+		return 0;
-+
-+	if (panic_later)
-+		return 0;
-+
-+	if (val) {
-+		/* Environment option */
-+		unsigned int i;
-+		for (i = 0; envp_init[i]; i++) {
-+			if (i == MAX_INIT_ENVS) {
-+				panic_later = "env";
-+				panic_param = param;
-+			}
-+			if (!strncmp(param, envp_init[i], val - param))
-+				break;
-+		}
-+		envp_init[i] = param;
-+	} else {
-+		/* Command line option */
-+		unsigned int i;
-+		for (i = 0; argv_init[i]; i++) {
-+			if (i == MAX_INIT_ARGS) {
-+				panic_later = "init";
-+				panic_param = param;
-+			}
-+		}
-+		argv_init[i] = param;
-+	}
-+	return 0;
-+}
-+
-+static int __init init_setup(char *str)
-+{
-+	unsigned int i;
-+
-+	execute_command = str;
-+	/*
-+	 * In case LILO is going to boot us with default command line,
-+	 * it prepends "auto" before the whole cmdline which makes
-+	 * the shell think it should execute a script with such name.
-+	 * So we ignore all arguments entered _before_ init=... [MJ]
-+	 */
-+	for (i = 1; i < MAX_INIT_ARGS; i++)
-+		argv_init[i] = NULL;
-+	return 1;
-+}
-+__setup("init=", init_setup);
-+
-+static int __init rdinit_setup(char *str)
-+{
-+	unsigned int i;
-+
-+	ramdisk_execute_command = str;
-+	/* See "auto" comment in init_setup */
-+	for (i = 1; i < MAX_INIT_ARGS; i++)
-+		argv_init[i] = NULL;
-+	return 1;
-+}
-+__setup("rdinit=", rdinit_setup);
-+
-+#ifndef CONFIG_SMP
-+static const unsigned int setup_max_cpus = NR_CPUS;
-+static inline void setup_nr_cpu_ids(void) { }
-+static inline void smp_prepare_cpus(unsigned int maxcpus) { }
-+#endif
-+
-+/*
-+ * We need to store the untouched command line for future reference.
-+ * We also need to store the touched command line since the parameter
-+ * parsing is performed in place, and we should allow a component to
-+ * store reference of name/value for future reference.
-+ */
-+static void __init setup_command_line(char *command_line)
-+{
-+	size_t len = strlen(boot_command_line) + 1;
-+
-+	saved_command_line = memblock_alloc(len, SMP_CACHE_BYTES);
-+	if (!saved_command_line)
-+		panic("%s: Failed to allocate %zu bytes\n", __func__, len);
-+
-+	initcall_command_line =	memblock_alloc(len, SMP_CACHE_BYTES);
-+	if (!initcall_command_line)
-+		panic("%s: Failed to allocate %zu bytes\n", __func__, len);
-+
-+	static_command_line = memblock_alloc(len, SMP_CACHE_BYTES);
-+	if (!static_command_line)
-+		panic("%s: Failed to allocate %zu bytes\n", __func__, len);
-+
-+	strcpy(saved_command_line, boot_command_line);
-+	strcpy(static_command_line, command_line);
-+}
-+
-+/*
-+ * 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
-+ * be reaped by free_initmem before the root thread has proceeded to
-+ * cpu_idle.
-+ *
-+ * gcc-3.4 accidentally inlines this function, so use noinline.
-+ */
-+
-+static __initdata DECLARE_COMPLETION(kthreadd_done);
-+
-+noinline void __ref rest_init(void)
-+{
-+	struct task_struct *tsk;
-+	int pid;
-+
-+	rcu_scheduler_starting();
-+	/*
-+	 * We need to spawn init first so that it obtains pid 1, however
-+	 * the init task will end up wanting to create kthreads, which, if
-+	 * we schedule it before we create kthreadd, will OOPS.
-+	 */
-+	pid = kernel_thread(kernel_init, NULL, CLONE_FS);
-+	/*
-+	 * Pin init on the boot CPU. Task migration is not properly working
-+	 * until sched_init_smp() has been run. It will set the allowed
-+	 * CPUs for init to the non isolated CPUs.
-+	 */
-+	rcu_read_lock();
-+	tsk = find_task_by_pid_ns(pid, &init_pid_ns);
-+	set_cpus_allowed_ptr(tsk, cpumask_of(smp_processor_id()));
-+	rcu_read_unlock();
-+
-+	numa_default_policy();
-+	pid = kernel_thread(kthreadd, NULL, CLONE_FS | CLONE_FILES);
-+	rcu_read_lock();
-+	kthreadd_task = find_task_by_pid_ns(pid, &init_pid_ns);
-+	rcu_read_unlock();
-+
-+	/*
-+	 * Enable might_sleep() and smp_processor_id() checks.
-+	 * They cannot be enabled earlier because with CONFIG_PREEMPTION=y
-+	 * kernel_thread() would trigger might_sleep() splats. With
-+	 * CONFIG_PREEMPT_VOLUNTARY=y the init task might have scheduled
-+	 * already, but it's stuck on the kthreadd_done completion.
-+	 */
-+	system_state = SYSTEM_SCHEDULING;
-+
-+	complete(&kthreadd_done);
-+
-+	/*
-+	 * The boot idle thread must execute schedule()
-+	 * at least once to get things moving:
-+	 */
-+	schedule_preempt_disabled();
-+	/* Call into cpu_idle with preempt disabled */
-+	cpu_startup_entry(CPUHP_ONLINE);
-+}
-+
-+/* Check for early params. */
-+static int __init do_early_param(char *param, char *val,
-+				 const char *unused, void *arg)
-+{
-+	const struct obs_kernel_param *p;
-+
-+	for (p = __setup_start; p < __setup_end; p++) {
-+		if ((p->early && parameq(param, p->str)) ||
-+		    (strcmp(param, "console") == 0 &&
-+		     strcmp(p->str, "earlycon") == 0)
-+		) {
-+			if (p->setup_func(val) != 0)
-+				pr_warn("Malformed early option '%s'\n", param);
-+		}
-+	}
-+	/* We accept everything at this stage. */
-+	return 0;
-+}
-+
-+void __init parse_early_options(char *cmdline)
-+{
-+	parse_args("early options", cmdline, NULL, 0, 0, 0, NULL,
-+		   do_early_param);
-+}
-+
-+/* Arch code calls this early on, or if not, just before other parsing. */
-+void __init parse_early_param(void)
-+{
-+	static int done __initdata;
-+	static char tmp_cmdline[COMMAND_LINE_SIZE] __initdata;
-+
-+	if (done)
-+		return;
-+
-+	/* All fall through to do_early_param. */
-+	strlcpy(tmp_cmdline, boot_command_line, COMMAND_LINE_SIZE);
-+	parse_early_options(tmp_cmdline);
-+	done = 1;
-+}
-+
-+void __init __weak arch_post_acpi_subsys_init(void) { }
-+
-+void __init __weak smp_setup_processor_id(void)
-+{
-+}
-+
-+# if THREAD_SIZE >= PAGE_SIZE
-+void __init __weak thread_stack_cache_init(void)
-+{
-+}
-+#endif
-+
-+void __init __weak mem_encrypt_init(void) { }
-+
-+void __init __weak poking_init(void) { }
-+
-+void __init __weak pgtable_cache_init(void) { }
-+
-+bool initcall_debug;
-+core_param(initcall_debug, initcall_debug, bool, 0644);
-+
-+#ifdef TRACEPOINTS_ENABLED
-+static void __init initcall_debug_enable(void);
-+#else
-+static inline void initcall_debug_enable(void)
-+{
-+}
-+#endif
-+
-+/* Report memory auto-initialization states for this boot. */
-+static void __init report_meminit(void)
-+{
-+	const char *stack;
-+
-+	if (IS_ENABLED(CONFIG_INIT_STACK_ALL))
-+		stack = "all";
-+	else if (IS_ENABLED(CONFIG_GCC_PLUGIN_STRUCTLEAK_BYREF_ALL))
-+		stack = "byref_all";
-+	else if (IS_ENABLED(CONFIG_GCC_PLUGIN_STRUCTLEAK_BYREF))
-+		stack = "byref";
-+	else if (IS_ENABLED(CONFIG_GCC_PLUGIN_STRUCTLEAK_USER))
-+		stack = "__user";
-+	else
-+		stack = "off";
-+
-+	pr_info("mem auto-init: stack:%s, heap alloc:%s, heap free:%s\n",
-+		stack, want_init_on_alloc(GFP_KERNEL) ? "on" : "off",
-+		want_init_on_free() ? "on" : "off");
-+	if (want_init_on_free())
-+		pr_info("mem auto-init: clearing system memory may take some time...\n");
-+}
-+
-+/*
-+ * Set up kernel memory allocators
-+ */
-+static void __init mm_init(void)
-+{
-+	/*
-+	 * page_ext requires contiguous pages,
-+	 * bigger than MAX_ORDER unless SPARSEMEM.
-+	 */
-+	page_ext_init_flatmem();
-+	init_debug_pagealloc();
-+	report_meminit();
-+	mem_init();
-+	kmem_cache_init();
-+	kmemleak_init();
-+	pgtable_init();
-+	debug_objects_mem_init();
-+	vmalloc_init();
-+	ioremap_huge_init();
-+	/* Should be run before the first non-init thread is created */
-+	init_espfix_bsp();
-+	/* Should be run after espfix64 is set up. */
-+	pti_init();
-+}
-+
-+void __init __weak arch_call_rest_init(void)
-+{
-+	rest_init();
-+}
-+
-+asmlinkage __visible void __init start_kernel(void)
-+{
-+	char *command_line;
-+	char *after_dashes;
-+
-+	set_task_stack_end_magic(&init_task);
-+	smp_setup_processor_id();
-+	debug_objects_early_init();
-+
-+	cgroup_init_early();
-+
-+	local_irq_disable();
-+	early_boot_irqs_disabled = true;
-+
-+	/*
-+	 * Interrupts are still disabled. Do necessary setups, then
-+	 * enable them.
-+	 */
-+	boot_cpu_init();
-+	page_address_init();
-+	pr_notice("%s", linux_banner);
-+	early_security_init();
-+	setup_arch(&command_line);
-+	setup_command_line(command_line);
-+	setup_nr_cpu_ids();
-+	setup_per_cpu_areas();
-+	smp_prepare_boot_cpu();	/* arch-specific boot-cpu hooks */
-+	boot_cpu_hotplug_init();
-+
-+	build_all_zonelists(NULL);
-+	page_alloc_init();
-+
-+	pr_notice("Kernel command line: %s\n", boot_command_line);
-+	/* parameters may set static keys */
-+	jump_label_init();
-+	parse_early_param();
-+	after_dashes = parse_args("Booting kernel",
-+				  static_command_line, __start___param,
-+				  __stop___param - __start___param,
-+				  -1, -1, NULL, &unknown_bootoption);
-+	if (!IS_ERR_OR_NULL(after_dashes))
-+		parse_args("Setting init args", after_dashes, NULL, 0, -1, -1,
-+			   NULL, set_init_arg);
-+
-+	/*
-+	 * These use large bootmem allocations and must precede
-+	 * kmem_cache_init()
-+	 */
-+	setup_log_buf(0);
-+	vfs_caches_init_early();
-+	sort_main_extable();
-+	trap_init();
-+	mm_init();
-+
-+	ftrace_init();
-+
-+	/* trace_printk can be enabled here */
-+	early_trace_init();
-+
-+	/*
-+	 * Set up the scheduler prior starting any interrupts (such as the
-+	 * timer interrupt). Full topology setup happens at smp_init()
-+	 * time - but meanwhile we still have a functioning scheduler.
-+	 */
-+	sched_init();
-+	/*
-+	 * Disable preemption - early bootup scheduling is extremely
-+	 * fragile until we cpu_idle() for the first time.
-+	 */
-+	preempt_disable();
-+	if (WARN(!irqs_disabled(),
-+		 "Interrupts were enabled *very* early, fixing it\n"))
-+		local_irq_disable();
-+	radix_tree_init();
-+
-+	/*
-+	 * Set up housekeeping before setting up workqueues to allow the unbound
-+	 * workqueue to take non-housekeeping into account.
-+	 */
-+	housekeeping_init();
-+
-+	/*
-+	 * Allow workqueue creation and work item queueing/cancelling
-+	 * early.  Work item execution depends on kthreads and starts after
-+	 * workqueue_init().
-+	 */
-+	workqueue_init_early();
-+
-+	rcu_init();
-+
-+	/* Trace events are available after this */
-+	trace_init();
-+
-+	if (initcall_debug)
-+		initcall_debug_enable();
-+
-+	context_tracking_init();
-+	/* init some links before init_ISA_irqs() */
-+	early_irq_init();
-+	init_IRQ();
-+	tick_init();
-+	rcu_init_nohz();
-+	init_timers();
-+	hrtimers_init();
-+	softirq_init();
-+	timekeeping_init();
-+
-+	/*
-+	 * For best initial stack canary entropy, prepare it after:
-+	 * - setup_arch() for any UEFI RNG entropy and boot cmdline access
-+	 * - timekeeping_init() for ktime entropy used in rand_initialize()
-+	 * - rand_initialize() to get any arch-specific entropy like RDRAND
-+	 * - add_latent_entropy() to get any latent entropy
-+	 * - adding command line entropy
-+	 */
-+	rand_initialize();
-+	add_latent_entropy();
-+	add_device_randomness(command_line, strlen(command_line));
-+	boot_init_stack_canary();
-+
-+	time_init();
-+	perf_event_init();
-+	profile_init();
-+	call_function_init();
-+	WARN(!irqs_disabled(), "Interrupts were enabled early\n");
-+
-+	early_boot_irqs_disabled = false;
-+	local_irq_enable();
-+
-+	kmem_cache_init_late();
-+
-+	/*
-+	 * HACK ALERT! This is early. We're enabling the console before
-+	 * we've done PCI setups etc, and console_init() must be aware of
-+	 * this. But we do want output early, in case something goes wrong.
-+	 */
-+	console_init();
-+	if (panic_later)
-+		panic("Too many boot %s vars at `%s'", panic_later,
-+		      panic_param);
-+
-+	lockdep_init();
-+
-+	/*
-+	 * Need to run this when irqs are enabled, because it wants
-+	 * to self-test [hard/soft]-irqs on/off lock inversion bugs
-+	 * too:
-+	 */
-+	locking_selftest();
-+
-+	/*
-+	 * This needs to be called before any devices perform DMA
-+	 * operations that might use the SWIOTLB bounce buffers. It will
-+	 * mark the bounce buffers as decrypted so that their usage will
-+	 * not cause "plain-text" data to be decrypted when accessed.
-+	 */
-+	mem_encrypt_init();
-+
-+#ifdef CONFIG_BLK_DEV_INITRD
-+	if (initrd_start && !initrd_below_start_ok &&
-+	    page_to_pfn(virt_to_page((void *)initrd_start)) < min_low_pfn) {
-+		pr_crit("initrd overwritten (0x%08lx < 0x%08lx) - disabling it.\n",
-+		    page_to_pfn(virt_to_page((void *)initrd_start)),
-+		    min_low_pfn);
-+		initrd_start = 0;
-+	}
-+#endif
-+	setup_per_cpu_pageset();
-+	numa_policy_init();
-+	acpi_early_init();
-+	if (late_time_init)
-+		late_time_init();
-+	sched_clock_init();
-+	calibrate_delay();
-+	pid_idr_init();
-+	anon_vma_init();
-+#ifdef CONFIG_X86
-+	if (efi_enabled(EFI_RUNTIME_SERVICES))
-+		efi_enter_virtual_mode();
-+#endif
-+	thread_stack_cache_init();
-+	cred_init();
-+	fork_init();
-+	proc_caches_init();
-+	uts_ns_init();
-+	buffer_init();
-+	key_init();
-+	security_init();
-+	dbg_late_init();
-+	vfs_caches_init();
-+	pagecache_init();
-+	signals_init();
-+	seq_file_init();
-+	proc_root_init();
-+	nsfs_init();
-+	cpuset_init();
-+	cgroup_init();
-+	taskstats_init_early();
-+	delayacct_init();
-+
-+	poking_init();
-+	check_bugs();
-+
-+	acpi_subsystem_init();
-+	arch_post_acpi_subsys_init();
-+	sfi_init_late();
-+
-+	/* Do the rest non-__init'ed, we're now alive */
-+	arch_call_rest_init();
-+
-+	prevent_tail_call_optimization();
-+}
-+
-+/* Call all constructor functions linked into the kernel. */
-+static void __init do_ctors(void)
-+{
-+#ifdef CONFIG_CONSTRUCTORS
-+	ctor_fn_t *fn = (ctor_fn_t *) __ctors_start;
-+
-+	for (; fn < (ctor_fn_t *) __ctors_end; fn++)
-+		(*fn)();
-+#endif
-+}
-+
-+#ifdef CONFIG_KALLSYMS
-+struct blacklist_entry {
-+	struct list_head next;
-+	char *buf;
-+};
-+
-+static __initdata_or_module LIST_HEAD(blacklisted_initcalls);
-+
-+static int __init initcall_blacklist(char *str)
-+{
-+	char *str_entry;
-+	struct blacklist_entry *entry;
-+
-+	/* str argument is a comma-separated list of functions */
-+	do {
-+		str_entry = strsep(&str, ",");
-+		if (str_entry) {
-+			pr_debug("blacklisting initcall %s\n", str_entry);
-+			entry = memblock_alloc(sizeof(*entry),
-+					       SMP_CACHE_BYTES);
-+			if (!entry)
-+				panic("%s: Failed to allocate %zu bytes\n",
-+				      __func__, sizeof(*entry));
-+			entry->buf = memblock_alloc(strlen(str_entry) + 1,
-+						    SMP_CACHE_BYTES);
-+			if (!entry->buf)
-+				panic("%s: Failed to allocate %zu bytes\n",
-+				      __func__, strlen(str_entry) + 1);
-+			strcpy(entry->buf, str_entry);
-+			list_add(&entry->next, &blacklisted_initcalls);
-+		}
-+	} while (str_entry);
-+
-+	return 0;
-+}
-+
-+static bool __init_or_module initcall_blacklisted(initcall_t fn)
-+{
-+	struct blacklist_entry *entry;
-+	char fn_name[KSYM_SYMBOL_LEN];
-+	unsigned long addr;
-+
-+	if (list_empty(&blacklisted_initcalls))
-+		return false;
-+
-+	addr = (unsigned long) dereference_function_descriptor(fn);
-+	sprint_symbol_no_offset(fn_name, addr);
-+
-+	/*
-+	 * fn will be "function_name [module_name]" where [module_name] is not
-+	 * displayed for built-in init functions.  Strip off the [module_name].
-+	 */
-+	strreplace(fn_name, ' ', '\0');
-+
-+	list_for_each_entry(entry, &blacklisted_initcalls, next) {
-+		if (!strcmp(fn_name, entry->buf)) {
-+			pr_debug("initcall %s blacklisted\n", fn_name);
-+			return true;
-+		}
-+	}
-+
-+	return false;
-+}
-+#else
-+static int __init initcall_blacklist(char *str)
-+{
-+	pr_warn("initcall_blacklist requires CONFIG_KALLSYMS\n");
-+	return 0;
-+}
-+
-+static bool __init_or_module initcall_blacklisted(initcall_t fn)
-+{
-+	return false;
-+}
-+#endif
-+__setup("initcall_blacklist=", initcall_blacklist);
-+
-+static __init_or_module void
-+trace_initcall_start_cb(void *data, initcall_t fn)
-+{
-+	ktime_t *calltime = (ktime_t *)data;
-+
-+	printk(KERN_DEBUG "calling  %pS @ %i\n", fn, task_pid_nr(current));
-+	*calltime = ktime_get();
-+}
-+
-+static __init_or_module void
-+trace_initcall_finish_cb(void *data, initcall_t fn, int ret)
-+{
-+	ktime_t *calltime = (ktime_t *)data;
-+	ktime_t delta, rettime;
-+	unsigned long long duration;
-+
-+	rettime = ktime_get();
-+	delta = ktime_sub(rettime, *calltime);
-+	duration = (unsigned long long) ktime_to_ns(delta) >> 10;
-+	printk(KERN_DEBUG "initcall %pS returned %d after %lld usecs\n",
-+		 fn, ret, duration);
-+}
-+
-+static ktime_t initcall_calltime;
-+
-+#ifdef TRACEPOINTS_ENABLED
-+static void __init initcall_debug_enable(void)
-+{
-+	int ret;
-+
-+	ret = register_trace_initcall_start(trace_initcall_start_cb,
-+					    &initcall_calltime);
-+	ret |= register_trace_initcall_finish(trace_initcall_finish_cb,
-+					      &initcall_calltime);
-+	WARN(ret, "Failed to register initcall tracepoints\n");
-+}
-+# define do_trace_initcall_start	trace_initcall_start
-+# define do_trace_initcall_finish	trace_initcall_finish
-+#else
-+static inline void do_trace_initcall_start(initcall_t fn)
-+{
-+	if (!initcall_debug)
-+		return;
-+	trace_initcall_start_cb(&initcall_calltime, fn);
-+}
-+static inline void do_trace_initcall_finish(initcall_t fn, int ret)
-+{
-+	if (!initcall_debug)
-+		return;
-+	trace_initcall_finish_cb(&initcall_calltime, fn, ret);
-+}
-+#endif /* !TRACEPOINTS_ENABLED */
-+
-+int __init_or_module do_one_initcall(initcall_t fn)
-+{
-+	int count = preempt_count();
-+	char msgbuf[64];
-+	int ret;
-+
-+	if (initcall_blacklisted(fn))
-+		return -EPERM;
-+
-+	do_trace_initcall_start(fn);
-+	ret = fn();
-+	do_trace_initcall_finish(fn, ret);
-+
-+	msgbuf[0] = 0;
-+
-+	if (preempt_count() != count) {
-+		sprintf(msgbuf, "preemption imbalance ");
-+		preempt_count_set(count);
-+	}
-+	if (irqs_disabled()) {
-+		strlcat(msgbuf, "disabled interrupts ", sizeof(msgbuf));
-+		local_irq_enable();
-+	}
-+	WARN(msgbuf[0], "initcall %pS returned with %s\n", fn, msgbuf);
-+
-+	add_latent_entropy();
-+	return ret;
-+}
-+
-+
-+extern initcall_entry_t __initcall_start[];
-+extern initcall_entry_t __initcall0_start[];
-+extern initcall_entry_t __initcall1_start[];
-+extern initcall_entry_t __initcall2_start[];
-+extern initcall_entry_t __initcall3_start[];
-+extern initcall_entry_t __initcall4_start[];
-+extern initcall_entry_t __initcall5_start[];
-+extern initcall_entry_t __initcall6_start[];
-+extern initcall_entry_t __initcall7_start[];
-+extern initcall_entry_t __initcall_end[];
-+
-+static initcall_entry_t *initcall_levels[] __initdata = {
-+	__initcall0_start,
-+	__initcall1_start,
-+	__initcall2_start,
-+	__initcall3_start,
-+	__initcall4_start,
-+	__initcall5_start,
-+	__initcall6_start,
-+	__initcall7_start,
-+	__initcall_end,
-+};
-+
-+/* Keep these in sync with initcalls in include/linux/init.h */
-+static const char *initcall_level_names[] __initdata = {
-+	"pure",
-+	"core",
-+	"postcore",
-+	"arch",
-+	"subsys",
-+	"fs",
-+	"device",
-+	"late",
-+};
-+
-+static void __init do_initcall_level(int level)
-+{
-+	initcall_entry_t *fn;
-+
-+	strcpy(initcall_command_line, saved_command_line);
-+	parse_args(initcall_level_names[level],
-+		   initcall_command_line, __start___param,
-+		   __stop___param - __start___param,
-+		   level, level,
-+		   NULL, &repair_env_string);
-+
-+	trace_initcall_level(initcall_level_names[level]);
-+	for (fn = initcall_levels[level]; fn < initcall_levels[level+1]; fn++)
-+		do_one_initcall(initcall_from_entry(fn));
-+}
-+
-+static void __init do_initcalls(void)
-+{
-+	int level;
-+
-+	for (level = 0; level < ARRAY_SIZE(initcall_levels) - 1; level++)
-+		do_initcall_level(level);
-+}
-+
-+/*
-+ * Ok, the machine is now initialized. None of the devices
-+ * have been touched yet, but the CPU subsystem is up and
-+ * running, and memory and process management works.
-+ *
-+ * Now we can finally start doing some real work..
-+ */
-+static void __init do_basic_setup(void)
-+{
-+	cpuset_init_smp();
-+	driver_init();
-+	init_irq_proc();
-+	do_ctors();
-+	usermodehelper_enable();
-+	do_initcalls();
-+}
-+
-+static void __init do_pre_smp_initcalls(void)
-+{
-+	initcall_entry_t *fn;
-+
-+	trace_initcall_level("early");
-+	for (fn = __initcall_start; fn < __initcall0_start; fn++)
-+		do_one_initcall(initcall_from_entry(fn));
-+}
-+
-+static int run_init_process(const char *init_filename)
-+{
-+	argv_init[0] = init_filename;
-+	pr_info("Run %s as init process\n", init_filename);
-+	return do_execve(getname_kernel(init_filename),
-+		(const char __user *const __user *)argv_init,
-+		(const char __user *const __user *)envp_init);
-+}
-+
-+static int try_to_run_init_process(const char *init_filename)
-+{
-+	int ret;
-+
-+	ret = run_init_process(init_filename);
-+
-+	if (ret && ret != -ENOENT) {
-+		pr_err("Starting init: %s exists but couldn't execute it (error %d)\n",
-+		       init_filename, ret);
-+	}
-+
-+	return ret;
-+}
-+
-+static noinline void __init kernel_init_freeable(void);
-+
-+#if defined(CONFIG_STRICT_KERNEL_RWX) || defined(CONFIG_STRICT_MODULE_RWX)
-+bool rodata_enabled __ro_after_init = true;
-+static int __init set_debug_rodata(char *str)
-+{
-+	return strtobool(str, &rodata_enabled);
-+}
-+__setup("rodata=", set_debug_rodata);
-+#endif
-+
-+#ifdef CONFIG_STRICT_KERNEL_RWX
-+static void mark_readonly(void)
-+{
-+	if (rodata_enabled) {
-+		/*
-+		 * load_module() results in W+X mappings, which are cleaned
-+		 * up with call_rcu().  Let's make sure that queued work is
-+		 * flushed so that we don't hit false positives looking for
-+		 * insecure pages which are W+X.
-+		 */
-+		rcu_barrier();
-+		mark_rodata_ro();
-+		rodata_test();
-+	} else
-+		pr_info("Kernel memory protection disabled.\n");
-+}
-+#else
-+static inline void mark_readonly(void)
-+{
-+	pr_warn("This architecture does not have kernel memory protection.\n");
-+}
-+#endif
-+
-+void __weak free_initmem(void)
-+{
-+	free_initmem_default(POISON_FREE_INITMEM);
-+}
-+
-+static int __ref kernel_init(void *unused)
-+{
-+	int ret;
-+
-+	kernel_init_freeable();
-+	/* need to finish all async __init code before freeing the memory */
-+	async_synchronize_full();
-+	kprobe_free_init_mem();
-+	ftrace_free_init_mem();
-+	free_initmem();
-+	mark_readonly();
-+
-+	/*
-+	 * Kernel mappings are now finalized - update the userspace page-table
-+	 * to finalize PTI.
-+	 */
-+	pti_finalize();
-+
-+	system_state = SYSTEM_RUNNING;
-+	numa_default_policy();
-+
-+	rcu_end_inkernel_boot();
-+
-+	if (ramdisk_execute_command) {
-+		ret = run_init_process(ramdisk_execute_command);
-+		if (!ret)
-+			return 0;
-+		pr_err("Failed to execute %s (error %d)\n",
-+		       ramdisk_execute_command, ret);
-+	}
-+
-+	/*
-+	 * We try each of these until one succeeds.
-+	 *
-+	 * The Bourne shell can be used instead of init if we are
-+	 * trying to recover a really broken machine.
-+	 */
-+	if (execute_command) {
-+		ret = run_init_process(execute_command);
-+		if (!ret)
-+			return 0;
-+		panic("Requested init %s failed (error %d).",
-+		      execute_command, ret);
-+	}
-+	if (!try_to_run_init_process("/sbin/init") ||
-+	    !try_to_run_init_process("/etc/init") ||
-+	    !try_to_run_init_process("/bin/init") ||
-+	    !try_to_run_init_process("/bin/sh"))
-+		return 0;
-+
-+	panic("No working init found.  Try passing init= option to kernel. "
-+	      "See Linux Documentation/admin-guide/init.rst for guidance.");
-+}
-+
-+static noinline void __init kernel_init_freeable(void)
-+{
-+	/*
-+	 * Wait until kthreadd is all set-up.
-+	 */
-+	wait_for_completion(&kthreadd_done);
-+
-+	/* Now the scheduler is fully set up and can do blocking allocations */
-+	gfp_allowed_mask = __GFP_BITS_MASK;
-+
-+	/*
-+	 * init can allocate pages on any node
-+	 */
-+	set_mems_allowed(node_states[N_MEMORY]);
-+
-+	cad_pid = task_pid(current);
-+
-+	smp_prepare_cpus(setup_max_cpus);
-+
-+	workqueue_init();
-+
-+	init_mm_internals();
-+
-+	do_pre_smp_initcalls();
-+	lockup_detector_init();
-+
-+	smp_init();
-+	sched_init_smp();
-+
-+	page_alloc_init_late();
-+	/* Initialize page ext after all struct pages are initialized. */
-+	page_ext_init();
-+
-+	do_basic_setup();
-+
-+	/* Open the /dev/console on the rootfs, this should never fail */
-+	if (ksys_open((const char __user *) "/dev/console", O_RDWR, 0) < 0)
-+		pr_err("Warning: unable to open an initial console.\n");
-+
-+	(void) ksys_dup(0);
-+	(void) ksys_dup(0);
-+	/*
-+	 * check if there is an early userspace init.  If yes, let it do all
-+	 * the work
-+	 */
-+
-+	if (!ramdisk_execute_command)
-+		ramdisk_execute_command = "/init";
-+
-+	if (ksys_access((const char __user *)
-+			ramdisk_execute_command, 0) != 0) {
-+		ramdisk_execute_command = NULL;
-+		prepare_namespace();
-+	}
-+
-+	/*
-+	 * Ok, we have completed the initial bootup, and
-+	 * we're essentially up and running. Get rid of the
-+	 * initmem segments and start the user-mode stuff..
-+	 *
-+	 * rootfs is available now, try loading the public keys
-+	 * and default modules
-+	 */
-+
-+	integrity_load_keys();
-+}