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authorArnd Bergmann <arnd@arndb.de>2023-05-17 15:10:59 +0200
committerAndrew Morton <akpm@linux-foundation.org>2023-06-09 17:44:16 -0700
commitad1a48301f659a02df5bff0a121d4a5c0411d36b (patch)
treef5bcc7b73db30d9131e904b5b83c7deefac5b351
parent23108f6aac4c86f822db59b89d64da0e70bad5fe (diff)
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init: consolidate prototypes in linux/init.h
The init/main.c file contains some extern declarations for functions defined in architecture code, and it defines some other functions that are called from architecture code with a custom prototype. Both of those result in warnings with 'make W=1': init/calibrate.c:261:37: error: no previous prototype for 'calibrate_delay_is_known' [-Werror=missing-prototypes] init/main.c:790:20: error: no previous prototype for 'mem_encrypt_init' [-Werror=missing-prototypes] init/main.c:792:20: error: no previous prototype for 'poking_init' [-Werror=missing-prototypes] arch/arm64/kernel/irq.c:122:13: error: no previous prototype for 'init_IRQ' [-Werror=missing-prototypes] arch/arm64/kernel/time.c:55:13: error: no previous prototype for 'time_init' [-Werror=missing-prototypes] arch/x86/kernel/process.c:935:13: error: no previous prototype for 'arch_post_acpi_subsys_init' [-Werror=missing-prototypes] init/calibrate.c:261:37: error: no previous prototype for 'calibrate_delay_is_known' [-Werror=missing-prototypes] kernel/fork.c:991:20: error: no previous prototype for 'arch_task_cache_init' [-Werror=missing-prototypes] Add prototypes for all of these in include/linux/init.h or another appropriate header, and remove the duplicate declarations from architecture specific code. [sfr@canb.auug.org.au: declare time_init_early()] Link: https://lkml.kernel.org/r/20230519124311.5167221c@canb.auug.org.au Link: https://lkml.kernel.org/r/20230517131102.934196-12-arnd@kernel.org Signed-off-by: Arnd Bergmann <arnd@arndb.de> Signed-off-by: Stephen Rothwell <sfr@canb.auug.org.au> Cc: Boqun Feng <boqun.feng@gmail.com> Cc: Catalin Marinas <catalin.marinas@arm.com> Cc: Christoph Lameter <cl@linux.com> Cc: Dennis Zhou <dennis@kernel.org> Cc: Eric Paris <eparis@redhat.com> Cc: Heiko Carstens <hca@linux.ibm.com> Cc: Helge Deller <deller@gmx.de> Cc: Ingo Molnar <mingo@redhat.com> Cc: Michael Ellerman <mpe@ellerman.id.au> Cc: Michal Simek <monstr@monstr.eu> Cc: Palmer Dabbelt <palmer@dabbelt.com> Cc: Paul Moore <paul@paul-moore.com> Cc: Pavel Machek <pavel@ucw.cz> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Rafael J. Wysocki <rafael@kernel.org> Cc: Russell King <linux@armlinux.org.uk> Cc: Tejun Heo <tj@kernel.org> Cc: Thomas Bogendoerfer <tsbogend@alpha.franken.de> Cc: Thomas Gleixner <tglx@linutronix.de> Cc: Waiman Long <longman@redhat.com> Cc: Will Deacon <will@kernel.org> Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
-rw-r--r--arch/arm/include/asm/irq.h1
-rw-r--r--arch/microblaze/include/asm/setup.h2
-rw-r--r--arch/mips/include/asm/irq.h1
-rw-r--r--arch/parisc/kernel/smp.c1
-rw-r--r--arch/powerpc/include/asm/irq.h1
-rw-r--r--arch/riscv/include/asm/irq.h2
-rw-r--r--arch/riscv/include/asm/timex.h2
-rw-r--r--arch/s390/kernel/entry.h2
-rw-r--r--arch/sh/include/asm/irq.h1
-rw-r--r--arch/sh/include/asm/rtc.h2
-rw-r--r--arch/sparc/include/asm/irq_32.h1
-rw-r--r--arch/sparc/include/asm/irq_64.h1
-rw-r--r--arch/sparc/include/asm/timer_64.h1
-rw-r--r--arch/sparc/kernel/kernel.h1
-rw-r--r--arch/x86/include/asm/irq.h2
-rw-r--r--arch/x86/include/asm/mem_encrypt.h3
-rw-r--r--arch/x86/include/asm/time.h1
-rw-r--r--arch/x86/include/asm/tsc.h1
-rw-r--r--include/linux/acpi.h3
-rw-r--r--include/linux/delay.h1
-rw-r--r--include/linux/init.h20
-rw-r--r--init/main.c18
22 files changed, 23 insertions, 45 deletions
diff --git a/arch/arm/include/asm/irq.h b/arch/arm/include/asm/irq.h
index a7c2337b0c7d..18605f1b3580 100644
--- a/arch/arm/include/asm/irq.h
+++ b/arch/arm/include/asm/irq.h
@@ -27,7 +27,6 @@ struct irqaction;
struct pt_regs;
void handle_IRQ(unsigned int, struct pt_regs *);
-void init_IRQ(void);
#ifdef CONFIG_SMP
#include <linux/cpumask.h>
diff --git a/arch/microblaze/include/asm/setup.h b/arch/microblaze/include/asm/setup.h
index a06cc1f97aa9..3657f5e78a3d 100644
--- a/arch/microblaze/include/asm/setup.h
+++ b/arch/microblaze/include/asm/setup.h
@@ -16,8 +16,6 @@ extern char *klimit;
extern void mmu_reset(void);
-void time_init(void);
-void init_IRQ(void);
void machine_early_init(const char *cmdline, unsigned int ram,
unsigned int fdt, unsigned int msr, unsigned int tlb0,
unsigned int tlb1);
diff --git a/arch/mips/include/asm/irq.h b/arch/mips/include/asm/irq.h
index 44f9824c1d8c..75abfa834ab7 100644
--- a/arch/mips/include/asm/irq.h
+++ b/arch/mips/include/asm/irq.h
@@ -19,7 +19,6 @@
#define IRQ_STACK_SIZE THREAD_SIZE
#define IRQ_STACK_START (IRQ_STACK_SIZE - 16)
-extern void __init init_IRQ(void);
extern void *irq_stack[NR_CPUS];
/*
diff --git a/arch/parisc/kernel/smp.c b/arch/parisc/kernel/smp.c
index b7fc859fa87d..83348125b524 100644
--- a/arch/parisc/kernel/smp.c
+++ b/arch/parisc/kernel/smp.c
@@ -271,7 +271,6 @@ void arch_send_call_function_single_ipi(int cpu)
static void
smp_cpu_init(int cpunum)
{
- extern void init_IRQ(void); /* arch/parisc/kernel/irq.c */
extern void start_cpu_itimer(void); /* arch/parisc/kernel/time.c */
/* Set modes and Enable floating point coprocessor */
diff --git a/arch/powerpc/include/asm/irq.h b/arch/powerpc/include/asm/irq.h
index deadd2149426..94dffa1dd223 100644
--- a/arch/powerpc/include/asm/irq.h
+++ b/arch/powerpc/include/asm/irq.h
@@ -50,7 +50,6 @@ extern void *hardirq_ctx[NR_CPUS];
extern void *softirq_ctx[NR_CPUS];
void __do_IRQ(struct pt_regs *regs);
-extern void __init init_IRQ(void);
int irq_choose_cpu(const struct cpumask *mask);
diff --git a/arch/riscv/include/asm/irq.h b/arch/riscv/include/asm/irq.h
index 43b9ebfbd943..8e10a94430a2 100644
--- a/arch/riscv/include/asm/irq.h
+++ b/arch/riscv/include/asm/irq.h
@@ -16,6 +16,4 @@ void riscv_set_intc_hwnode_fn(struct fwnode_handle *(*fn)(void));
struct fwnode_handle *riscv_get_intc_hwnode(void);
-extern void __init init_IRQ(void);
-
#endif /* _ASM_RISCV_IRQ_H */
diff --git a/arch/riscv/include/asm/timex.h b/arch/riscv/include/asm/timex.h
index d6a7428f6248..a06697846e69 100644
--- a/arch/riscv/include/asm/timex.h
+++ b/arch/riscv/include/asm/timex.h
@@ -88,6 +88,4 @@ static inline int read_current_timer(unsigned long *timer_val)
return 0;
}
-extern void time_init(void);
-
#endif /* _ASM_RISCV_TIMEX_H */
diff --git a/arch/s390/kernel/entry.h b/arch/s390/kernel/entry.h
index 34674e38826b..9f41853f36b9 100644
--- a/arch/s390/kernel/entry.h
+++ b/arch/s390/kernel/entry.h
@@ -34,14 +34,12 @@ void kernel_stack_overflow(struct pt_regs * regs);
void handle_signal32(struct ksignal *ksig, sigset_t *oldset,
struct pt_regs *regs);
-void __init init_IRQ(void);
void do_io_irq(struct pt_regs *regs);
void do_ext_irq(struct pt_regs *regs);
void do_restart(void *arg);
void __init startup_init(void);
void die(struct pt_regs *regs, const char *str);
int setup_profiling_timer(unsigned int multiplier);
-void __init time_init(void);
unsigned long prepare_ftrace_return(unsigned long parent, unsigned long sp, unsigned long ip);
struct s390_mmap_arg_struct;
diff --git a/arch/sh/include/asm/irq.h b/arch/sh/include/asm/irq.h
index 1c4923502fd4..0f384b1f45ca 100644
--- a/arch/sh/include/asm/irq.h
+++ b/arch/sh/include/asm/irq.h
@@ -22,7 +22,6 @@ extern unsigned short *irq_mask_register;
/*
* PINT IRQs
*/
-void init_IRQ_pint(void);
void make_imask_irq(unsigned int irq);
static inline int generic_irq_demux(int irq)
diff --git a/arch/sh/include/asm/rtc.h b/arch/sh/include/asm/rtc.h
index 69dbae2949b0..7fe7002d1d50 100644
--- a/arch/sh/include/asm/rtc.h
+++ b/arch/sh/include/asm/rtc.h
@@ -2,8 +2,6 @@
#ifndef _ASM_RTC_H
#define _ASM_RTC_H
-void time_init(void);
-
#define RTC_CAP_4_DIGIT_YEAR (1 << 0)
struct sh_rtc_platform_info {
diff --git a/arch/sparc/include/asm/irq_32.h b/arch/sparc/include/asm/irq_32.h
index 43ec2609b811..6ee48321cbc2 100644
--- a/arch/sparc/include/asm/irq_32.h
+++ b/arch/sparc/include/asm/irq_32.h
@@ -17,7 +17,6 @@
#define irq_canonicalize(irq) (irq)
-void __init init_IRQ(void);
void __init sun4d_init_sbi_irq(void);
#define NO_IRQ 0xffffffff
diff --git a/arch/sparc/include/asm/irq_64.h b/arch/sparc/include/asm/irq_64.h
index 154df2cf19f4..b436029f1ced 100644
--- a/arch/sparc/include/asm/irq_64.h
+++ b/arch/sparc/include/asm/irq_64.h
@@ -61,7 +61,6 @@ void sun4u_destroy_msi(unsigned int irq);
unsigned int irq_alloc(unsigned int dev_handle, unsigned int dev_ino);
void irq_free(unsigned int irq);
-void __init init_IRQ(void);
void fixup_irqs(void);
static inline void set_softint(unsigned long bits)
diff --git a/arch/sparc/include/asm/timer_64.h b/arch/sparc/include/asm/timer_64.h
index dcfad4613e18..ffff52c8b760 100644
--- a/arch/sparc/include/asm/timer_64.h
+++ b/arch/sparc/include/asm/timer_64.h
@@ -34,7 +34,6 @@ extern struct sparc64_tick_ops *tick_ops;
unsigned long sparc64_get_clock_tick(unsigned int cpu);
void setup_sparc64_timer(void);
-void __init time_init(void);
#define TICK_PRIV_BIT BIT(63)
#define TICKCMP_IRQ_BIT BIT(63)
diff --git a/arch/sparc/kernel/kernel.h b/arch/sparc/kernel/kernel.h
index 9cd09a3ef35f..15da3c0597a5 100644
--- a/arch/sparc/kernel/kernel.h
+++ b/arch/sparc/kernel/kernel.h
@@ -91,7 +91,6 @@ extern int static_irq_count;
extern spinlock_t irq_action_lock;
void unexpected_irq(int irq, void *dev_id, struct pt_regs * regs);
-void init_IRQ(void);
/* sun4m_irq.c */
void sun4m_init_IRQ(void);
diff --git a/arch/x86/include/asm/irq.h b/arch/x86/include/asm/irq.h
index 768aa234cbb4..29e083b92813 100644
--- a/arch/x86/include/asm/irq.h
+++ b/arch/x86/include/asm/irq.h
@@ -40,8 +40,6 @@ extern void __handle_irq(struct irq_desc *desc, struct pt_regs *regs);
extern void init_ISA_irqs(void);
-extern void __init init_IRQ(void);
-
#ifdef CONFIG_X86_LOCAL_APIC
void arch_trigger_cpumask_backtrace(const struct cpumask *mask,
bool exclude_self);
diff --git a/arch/x86/include/asm/mem_encrypt.h b/arch/x86/include/asm/mem_encrypt.h
index b7126701574c..1c22c86d13e6 100644
--- a/arch/x86/include/asm/mem_encrypt.h
+++ b/arch/x86/include/asm/mem_encrypt.h
@@ -87,9 +87,6 @@ static inline void mem_encrypt_free_decrypted_mem(void) { }
#endif /* CONFIG_AMD_MEM_ENCRYPT */
-/* Architecture __weak replacement functions */
-void __init mem_encrypt_init(void);
-
void add_encrypt_protection_map(void);
/*
diff --git a/arch/x86/include/asm/time.h b/arch/x86/include/asm/time.h
index a53961c64a56..f360104ed172 100644
--- a/arch/x86/include/asm/time.h
+++ b/arch/x86/include/asm/time.h
@@ -6,7 +6,6 @@
#include <asm/mc146818rtc.h>
extern void hpet_time_init(void);
-extern void time_init(void);
extern bool pit_timer_init(void);
extern bool tsc_clocksource_watchdog_disabled(void);
diff --git a/arch/x86/include/asm/tsc.h b/arch/x86/include/asm/tsc.h
index fbdc3d951494..1992ef5e41a9 100644
--- a/arch/x86/include/asm/tsc.h
+++ b/arch/x86/include/asm/tsc.h
@@ -32,7 +32,6 @@ extern struct system_counterval_t convert_art_ns_to_tsc(u64 art_ns);
extern void tsc_early_init(void);
extern void tsc_init(void);
-extern unsigned long calibrate_delay_is_known(void);
extern void mark_tsc_unstable(char *reason);
extern int unsynchronized_tsc(void);
extern int check_tsc_unstable(void);
diff --git a/include/linux/acpi.h b/include/linux/acpi.h
index 7b71dd74baeb..f4c2a87d02c1 100644
--- a/include/linux/acpi.h
+++ b/include/linux/acpi.h
@@ -712,7 +712,6 @@ int acpi_match_platform_list(const struct acpi_platform_list *plat);
extern void acpi_early_init(void);
extern void acpi_subsystem_init(void);
-extern void arch_post_acpi_subsys_init(void);
extern int acpi_nvs_register(__u64 start, __u64 size);
@@ -1084,6 +1083,8 @@ static inline bool acpi_sleep_state_supported(u8 sleep_state)
#endif /* !CONFIG_ACPI */
+extern void arch_post_acpi_subsys_init(void);
+
#ifdef CONFIG_ACPI_HOTPLUG_IOAPIC
int acpi_ioapic_add(acpi_handle root);
#else
diff --git a/include/linux/delay.h b/include/linux/delay.h
index 039e7e0c7378..ff9cda975e30 100644
--- a/include/linux/delay.h
+++ b/include/linux/delay.h
@@ -56,6 +56,7 @@ static inline void ndelay(unsigned long x)
extern unsigned long lpj_fine;
void calibrate_delay(void);
+unsigned long calibrate_delay_is_known(void);
void __attribute__((weak)) calibration_delay_done(void);
void msleep(unsigned int msecs);
unsigned long msleep_interruptible(unsigned int msecs);
diff --git a/include/linux/init.h b/include/linux/init.h
index c5fe6d26f5b1..1200fa99e848 100644
--- a/include/linux/init.h
+++ b/include/linux/init.h
@@ -152,6 +152,24 @@ extern unsigned int reset_devices;
void setup_arch(char **);
void prepare_namespace(void);
void __init init_rootfs(void);
+
+void init_IRQ(void);
+void time_init(void);
+void mem_encrypt_init(void);
+void poking_init(void);
+void pgtable_cache_init(void);
+
+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[];
+
extern struct file_system_type rootfs_fs_type;
#if defined(CONFIG_STRICT_KERNEL_RWX) || defined(CONFIG_STRICT_MODULE_RWX)
@@ -309,6 +327,8 @@ struct obs_kernel_param {
int early;
};
+extern const struct obs_kernel_param __setup_start[], __setup_end[];
+
/*
* Only for really core code. See moduleparam.h for the normal way.
*
diff --git a/init/main.c b/init/main.c
index af50044deed5..d4400efbef0a 100644
--- a/init/main.c
+++ b/init/main.c
@@ -115,10 +115,6 @@
static int kernel_init(void *);
-extern void init_IRQ(void);
-extern void radix_tree_init(void);
-extern void maple_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
@@ -137,7 +133,6 @@ EXPORT_SYMBOL(system_state);
#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);
@@ -196,8 +191,6 @@ 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;
@@ -1263,17 +1256,6 @@ int __init_or_module do_one_initcall(initcall_t fn)
}
-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,