All of lore.kernel.org
 help / color / mirror / Atom feed
* [PATCH] x86: fix -Wmissing-prototypes warning
@ 2018-11-22  2:04 ` Yi Wang
  0 siblings, 0 replies; 16+ messages in thread
From: Yi Wang @ 2018-11-22  2:04 UTC (permalink / raw)
  To: tglx
  Cc: mingo, bp, hpa, x86, wang.yi59, linux-kernel, ard.biesheuvel,
	linux-efi, pbonzini, rkrcmar, kvm, jgross, akataria,
	virtualization, m.mizuma, peterz, prarit, douly.fnst, dwmw, luto,
	pasha.tatashin, rajvi.jingar, zhe.he, akpm, dyoung,
	takahiro.akashi, ebiederm, bhe, ivan.gorinov, robh,
	andy.shevchenko, frank.rowand, jan.kiszka, jailhouse-dev,
	konrad.wilk, thomas.lendacky, pravin.shedge4linux, namit,
	jroedel, bhelgaas, linux-pci, keescook, anton, ccross, tony.luck,
	rostedt, kexec, robh+dt, frowand.list, devicetree, oleg,
	zhong.weidong, up2wing

We may get -Wmissing-prototypes warnings when building
kernel with W=1, it's better to fix them as global function
signature can be changed and caller who use the old unchanged
prototypes will be hosed.

This patch fixes most of -Wmissing-prototypes warnings which
are in the root directory of arch/x86/kernel, not including
the subdirectories.

These are the warnings fixed in this patch:
arch/x86/kernel/signal.c:865:17: warning: no previous prototype for ‘sys32_x32_rt_sigreturn’ [-Wmissing-prototypes]
arch/x86/kernel/signal_compat.c:164:6: warning: no previous prototype for ‘sigaction_compat_abi’ [-Wmissing-prototypes]
arch/x86/kernel/traps.c:625:46: warning: no previous prototype for ‘sync_regs’ [-Wmissing-prototypes]
arch/x86/kernel/traps.c:640:24: warning: no previous prototype for ‘fixup_bad_iret’ [-Wmissing-prototypes]
arch/x86/kernel/traps.c:929:13: warning: no previous prototype for ‘trap_init’ [-Wmissing-prototypes]
arch/x86/kernel/irq.c:270:28: warning: no previous prototype for ‘smp_x86_platform_ipi’ [-Wmissing-prototypes]
arch/x86/kernel/irq.c:301:16: warning: no previous prototype for ‘smp_kvm_posted_intr_ipi’ [-Wmissing-prototypes]
arch/x86/kernel/irq.c:314:16: warning: no previous prototype for ‘smp_kvm_posted_intr_wakeup_ipi’ [-Wmissing-prototypes]
arch/x86/kernel/irq.c:328:16: warning: no previous prototype for ‘smp_kvm_posted_intr_nested_ipi’ [-Wmissing-prototypes]
arch/x86/kernel/irq_work.c:16:28: warning: no previous prototype for ‘smp_irq_work_interrupt’ [-Wmissing-prototypes]
arch/x86/kernel/irqinit.c:79:13: warning: no previous prototype for ‘init_IRQ’ [-Wmissing-prototypes]
arch/x86/kernel/quirks.c:672:13: warning: no previous prototype for ‘early_platform_quirks’ [-Wmissing-prototypes]
arch/x86/kernel/tsc.c:1499:15: warning: no previous prototype for ‘calibrate_delay_is_known’ [-Wmissing-prototypes]
arch/x86/kernel/process.c:653:13: warning: no previous prototype for ‘arch_post_acpi_subsys_init’ [-Wmissing-prototypes]
arch/x86/kernel/process.c:717:15: warning: no previous prototype for ‘arch_randomize_brk’ [-Wmissing-prototypes]
arch/x86/kernel/process.c:784:6: warning: no previous prototype for ‘do_arch_prctl_common’ [-Wmissing-prototypes]
arch/x86/kernel/reboot.c:869:6: warning: no previous prototype for ‘nmi_panic_self_stop’ [-Wmissing-prototypes]
arch/x86/kernel/smp.c:176:27: warning: no previous prototype for ‘smp_reboot_interrupt’ [-Wmissing-prototypes]
arch/x86/kernel/smp.c:260:28: warning: no previous prototype for ‘smp_reschedule_interrupt’ [-Wmissing-prototypes]
arch/x86/kernel/smp.c:281:28: warning: no previous prototype for ‘smp_call_function_interrupt’ [-Wmissing-prototypes]
arch/x86/kernel/smp.c:291:28: warning: no previous prototype for ‘smp_call_function_single_interrupt’ [-Wmissing-prototypes]
arch/x86/kernel/ftrace.c:840:6: warning: no previous prototype for ‘arch_ftrace_update_trampoline’ [-Wmissing-prototypes]
arch/x86/kernel/ftrace.c:934:7: warning: no previous prototype for ‘arch_ftrace_trampoline_func’ [-Wmissing-prototypes]
arch/x86/kernel/ftrace.c:946:6: warning: no previous prototype for ‘arch_ftrace_trampoline_free’ [-Wmissing-prototypes]
arch/x86/kernel/crash.c:114:6: warning: no previous prototype for ‘crash_smp_send_stop’ [-Wmissing-prototypes]
arch/x86/kernel/crash.c:351:5: warning: no previous prototype for ‘crash_setup_memmap_entries’ [-Wmissing-prototypes]
arch/x86/kernel/crash.c:424:5: warning: no previous prototype for ‘crash_load_segments’ [-Wmissing-prototypes]
arch/x86/kernel/machine_kexec_64.c:372:7: warning: no previous prototype for ‘arch_kexec_kernel_image_load’ [-Wmissing-prototypes]
arch/x86/kernel/paravirt-spinlocks.c:12:16: warning: no previous prototype for ‘__native_queued_spin_unlock’ [-Wmissing-prototypes]
arch/x86/kernel/paravirt-spinlocks.c:18:6: warning: no previous prototype for ‘pv_is_native_spin_unlock’ [-Wmissing-prototypes]
arch/x86/kernel/paravirt-spinlocks.c:24:16: warning: no previous prototype for ‘__native_vcpu_is_preempted’ [-Wmissing-prototypes]
arch/x86/kernel/paravirt-spinlocks.c:30:6: warning: no previous prototype for ‘pv_is_native_vcpu_is_preempted’ [-Wmissing-prototypes]
arch/x86/kernel/kvm.c:258:1: warning: no previous prototype for ‘do_async_page_fault’ [-Wmissing-prototypes]
arch/x86/kernel/jailhouse.c:200:6: warning: no previous prototype for ‘jailhouse_paravirt’ [-Wmissing-prototypes]
arch/x86/kernel/check.c:91:13: warning: no previous prototype for ‘setup_bios_corruption_check’ [-Wmissing-prototypes]
arch/x86/kernel/check.c:139:6: warning: no previous prototype for ‘check_for_bios_corruption’ [-Wmissing-prototypes]
arch/x86/kernel/devicetree.c:32:13: warning: no previous prototype for ‘early_init_dt_scan_chosen_arch’ [-Wmissing-prototypes]
arch/x86/kernel/devicetree.c:42:13: warning: no previous prototype for ‘add_dtb’ [-Wmissing-prototypes]
arch/x86/kernel/devicetree.c:108:6: warning: no previous prototype for ‘x86_of_pci_init’ [-Wmissing-prototypes]
arch/x86/kernel/devicetree.c:314:13: warning: no previous prototype for ‘x86_dtb_init’ [-Wmissing-prototypes]
arch/x86/kernel/tracepoint.c:16:5: warning: no previous prototype for ‘trace_pagefault_reg’ [-Wmissing-prototypes]
arch/x86/kernel/tracepoint.c:22:6: warning: no previous prototype for ‘trace_pagefault_unreg’ [-Wmissing-prototypes]
arch/x86/kernel/head64.c:113:22: warning: no previous prototype for ‘__startup_64’ [-Wmissing-prototypes]
arch/x86/kernel/head64.c:262:15: warning: no previous prototype for ‘__startup_secondary_64’ [-Wmissing-prototypes]
arch/x86/kernel/head64.c:350:12: warning: no previous prototype for ‘early_make_pgtable’ [-Wmissing-prototypes]

Signed-off-by: Yi Wang <wang.yi59@zte.com.cn>
---
 arch/x86/include/asm/crash.h       | 1 +
 arch/x86/include/asm/efi.h         | 2 --
 arch/x86/include/asm/irq.h         | 7 +++++++
 arch/x86/include/asm/irq_work.h    | 1 +
 arch/x86/include/asm/kvm_para.h    | 1 +
 arch/x86/include/asm/paravirt.h    | 5 +++++
 arch/x86/include/asm/reboot.h      | 1 +
 arch/x86/include/asm/setup.h       | 5 +++++
 arch/x86/include/asm/sighandling.h | 5 +++++
 arch/x86/include/asm/smp.h         | 6 ++++++
 arch/x86/include/asm/traps.h       | 4 ++++
 arch/x86/include/asm/tsc.h         | 1 +
 arch/x86/kernel/check.c            | 3 ++-
 arch/x86/kernel/crash.c            | 1 +
 arch/x86/kernel/devicetree.c       | 1 +
 arch/x86/kernel/jailhouse.c        | 1 +
 arch/x86/kernel/process.c          | 3 +++
 arch/x86/kernel/quirks.c           | 1 +
 arch/x86/kernel/tracepoint.c       | 1 +
 include/linux/efi.h                | 2 ++
 include/linux/ftrace.h             | 3 +++
 include/linux/kexec.h              | 1 +
 include/linux/of_fdt.h             | 1 +
 include/linux/ptrace.h             | 1 +
 24 files changed, 55 insertions(+), 3 deletions(-)

diff --git a/arch/x86/include/asm/crash.h b/arch/x86/include/asm/crash.h
index a7adb2bfb..0acf5ee 100644
--- a/arch/x86/include/asm/crash.h
+++ b/arch/x86/include/asm/crash.h
@@ -6,5 +6,6 @@
 int crash_copy_backup_region(struct kimage *image);
 int crash_setup_memmap_entries(struct kimage *image,
 		struct boot_params *params);
+void crash_smp_send_stop(void);
 
 #endif /* _ASM_X86_CRASH_H */
diff --git a/arch/x86/include/asm/efi.h b/arch/x86/include/asm/efi.h
index eea40d5..063f1d4 100644
--- a/arch/x86/include/asm/efi.h
+++ b/arch/x86/include/asm/efi.h
@@ -173,8 +173,6 @@ static inline bool efi_runtime_supported(void)
 extern struct console early_efi_console;
 extern void parse_efi_setup(u64 phys_addr, u32 data_len);
 
-extern void efifb_setup_from_dmi(struct screen_info *si, const char *opt);
-
 #ifdef CONFIG_EFI_MIXED
 extern void efi_thunk_runtime_setup(void);
 extern efi_status_t efi_thunk_set_virtual_address_map(
diff --git a/arch/x86/include/asm/irq.h b/arch/x86/include/asm/irq.h
index 2395bb7..fbb16e6 100644
--- a/arch/x86/include/asm/irq.h
+++ b/arch/x86/include/asm/irq.h
@@ -30,6 +30,9 @@ static inline int irq_canonicalize(int irq)
 
 #ifdef CONFIG_HAVE_KVM
 extern void kvm_set_posted_intr_wakeup_handler(void (*handler)(void));
+extern __visible void smp_kvm_posted_intr_ipi(struct pt_regs *regs);
+extern __visible void smp_kvm_posted_intr_wakeup_ipi(struct pt_regs *regs);
+extern __visible void smp_kvm_posted_intr_nested_ipi(struct pt_regs *regs);
 #endif
 
 extern void (*x86_platform_ipi_callback)(void);
@@ -41,9 +44,13 @@ static inline int irq_canonicalize(int irq)
 
 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);
+
+extern __visible void smp_x86_platform_ipi(struct pt_regs *regs);
 #define arch_trigger_cpumask_backtrace arch_trigger_cpumask_backtrace
 #endif
 
diff --git a/arch/x86/include/asm/irq_work.h b/arch/x86/include/asm/irq_work.h
index 800ffce..80b35e3 100644
--- a/arch/x86/include/asm/irq_work.h
+++ b/arch/x86/include/asm/irq_work.h
@@ -10,6 +10,7 @@ static inline bool arch_irq_work_has_interrupt(void)
 	return boot_cpu_has(X86_FEATURE_APIC);
 }
 extern void arch_irq_work_raise(void);
+extern __visible void smp_irq_work_interrupt(struct pt_regs *regs);
 #else
 static inline bool arch_irq_work_has_interrupt(void)
 {
diff --git a/arch/x86/include/asm/kvm_para.h b/arch/x86/include/asm/kvm_para.h
index 4c72363..5ed3cf1 100644
--- a/arch/x86/include/asm/kvm_para.h
+++ b/arch/x86/include/asm/kvm_para.h
@@ -92,6 +92,7 @@ static inline long kvm_hypercall4(unsigned int nr, unsigned long p1,
 void kvm_async_pf_task_wake(u32 token);
 u32 kvm_read_and_reset_pf_reason(void);
 extern void kvm_disable_steal_time(void);
+void do_async_page_fault(struct pt_regs *regs, unsigned long error_code);
 
 #ifdef CONFIG_PARAVIRT_SPINLOCKS
 void __init kvm_spinlock_init(void);
diff --git a/arch/x86/include/asm/paravirt.h b/arch/x86/include/asm/paravirt.h
index 4bf42f9..a97f28d 100644
--- a/arch/x86/include/asm/paravirt.h
+++ b/arch/x86/include/asm/paravirt.h
@@ -26,6 +26,11 @@ static inline unsigned long long paravirt_sched_clock(void)
 extern struct static_key paravirt_steal_enabled;
 extern struct static_key paravirt_steal_rq_enabled;
 
+__visible void __native_queued_spin_unlock(struct qspinlock *lock);
+bool pv_is_native_spin_unlock(void);
+__visible bool __native_vcpu_is_preempted(long cpu);
+bool pv_is_native_vcpu_is_preempted(void);
+
 static inline u64 paravirt_steal_clock(int cpu)
 {
 	return PVOP_CALL1(u64, time.steal_clock, cpu);
diff --git a/arch/x86/include/asm/reboot.h b/arch/x86/include/asm/reboot.h
index a671a11..04c17be 100644
--- a/arch/x86/include/asm/reboot.h
+++ b/arch/x86/include/asm/reboot.h
@@ -26,6 +26,7 @@ struct machine_ops {
 #define MRR_APM		1
 
 typedef void (*nmi_shootdown_cb)(int, struct pt_regs*);
+void nmi_panic_self_stop(struct pt_regs *regs);
 void nmi_shootdown_cpus(nmi_shootdown_cb callback);
 void run_crash_ipi_callback(struct pt_regs *regs);
 
diff --git a/arch/x86/include/asm/setup.h b/arch/x86/include/asm/setup.h
index ae13bc9..d85f5fa 100644
--- a/arch/x86/include/asm/setup.h
+++ b/arch/x86/include/asm/setup.h
@@ -26,6 +26,11 @@
 #define OLD_CL_ADDRESS		0x020	/* Relative to real mode data */
 #define NEW_CL_POINTER		0x228	/* Relative to real mode data */
 
+
+unsigned long __startup_64(unsigned long physaddr, struct boot_params *bp);
+unsigned long __startup_secondary_64(void);
+int __init early_make_pgtable(unsigned long address);
+
 #ifndef __ASSEMBLY__
 #include <asm/bootparam.h>
 #include <asm/x86_init.h>
diff --git a/arch/x86/include/asm/sighandling.h b/arch/x86/include/asm/sighandling.h
index bd26834..2fcbd6f 100644
--- a/arch/x86/include/asm/sighandling.h
+++ b/arch/x86/include/asm/sighandling.h
@@ -17,4 +17,9 @@
 int setup_sigcontext(struct sigcontext __user *sc, void __user *fpstate,
 		     struct pt_regs *regs, unsigned long mask);
 
+
+#ifdef CONFIG_X86_X32_ABI
+asmlinkage long sys32_x32_rt_sigreturn(void);
+#endif
+
 #endif /* _ASM_X86_SIGHANDLING_H */
diff --git a/arch/x86/include/asm/smp.h b/arch/x86/include/asm/smp.h
index 547c4fe..2e95b6c 100644
--- a/arch/x86/include/asm/smp.h
+++ b/arch/x86/include/asm/smp.h
@@ -148,6 +148,12 @@ static inline void arch_send_call_function_ipi_mask(const struct cpumask *mask)
 
 void smp_store_boot_cpu_info(void);
 void smp_store_cpu_info(int id);
+
+asmlinkage __visible void smp_reboot_interrupt(void);
+__visible void smp_reschedule_interrupt(struct pt_regs *regs);
+__visible void smp_call_function_interrupt(struct pt_regs *regs);
+__visible void smp_call_function_single_interrupt(struct pt_regs *r);
+
 #define cpu_physical_id(cpu)	per_cpu(x86_cpu_to_apicid, cpu)
 #define cpu_acpi_id(cpu)	per_cpu(x86_cpu_to_acpiid, cpu)
 
diff --git a/arch/x86/include/asm/traps.h b/arch/x86/include/asm/traps.h
index 7a4db72..c950d3d 100644
--- a/arch/x86/include/asm/traps.h
+++ b/arch/x86/include/asm/traps.h
@@ -75,6 +75,10 @@
 dotraplinkage void do_stack_segment(struct pt_regs *regs, long error_code);
 #ifdef CONFIG_X86_64
 dotraplinkage void do_double_fault(struct pt_regs *regs, long error_code);
+asmlinkage __visible notrace struct pt_regs *sync_regs(struct pt_regs *eregs);
+asmlinkage __visible notrace
+struct bad_iret_stack *fixup_bad_iret(struct bad_iret_stack *s);
+void __init trap_init(void);
 #endif
 dotraplinkage void do_general_protection(struct pt_regs *regs, long error_code);
 dotraplinkage void do_page_fault(struct pt_regs *regs, unsigned long error_code);
diff --git a/arch/x86/include/asm/tsc.h b/arch/x86/include/asm/tsc.h
index eb5bbfe..8a0c25c 100644
--- a/arch/x86/include/asm/tsc.h
+++ b/arch/x86/include/asm/tsc.h
@@ -35,6 +35,7 @@ static inline cycles_t get_cycles(void)
 
 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/arch/x86/kernel/check.c b/arch/x86/kernel/check.c
index 1979a76..5136e68 100644
--- a/arch/x86/kernel/check.c
+++ b/arch/x86/kernel/check.c
@@ -9,6 +9,7 @@
 #include <linux/memblock.h>
 
 #include <asm/proto.h>
+#include <asm/setup.h>
 
 /*
  * Some BIOSes seem to corrupt the low 64k of memory during events
@@ -136,7 +137,7 @@ void __init setup_bios_corruption_check(void)
 }
 
 
-void check_for_bios_corruption(void)
+static void check_for_bios_corruption(void)
 {
 	int i;
 	int corruption = 0;
diff --git a/arch/x86/kernel/crash.c b/arch/x86/kernel/crash.c
index f631a3f..c8b07d8 100644
--- a/arch/x86/kernel/crash.c
+++ b/arch/x86/kernel/crash.c
@@ -37,6 +37,7 @@
 #include <asm/reboot.h>
 #include <asm/virtext.h>
 #include <asm/intel_pt.h>
+#include <asm/crash.h>
 
 /* Used while preparing memory map entries for second kernel */
 struct crash_memmap_data {
diff --git a/arch/x86/kernel/devicetree.c b/arch/x86/kernel/devicetree.c
index 7299dcb..8d85e00 100644
--- a/arch/x86/kernel/devicetree.c
+++ b/arch/x86/kernel/devicetree.c
@@ -23,6 +23,7 @@
 #include <asm/pci_x86.h>
 #include <asm/setup.h>
 #include <asm/i8259.h>
+#include <asm/prom.h>
 
 __initdata u64 initial_dtb;
 char __initdata cmd_line[COMMAND_LINE_SIZE];
diff --git a/arch/x86/kernel/jailhouse.c b/arch/x86/kernel/jailhouse.c
index 108c48d..1b2ee55 100644
--- a/arch/x86/kernel/jailhouse.c
+++ b/arch/x86/kernel/jailhouse.c
@@ -19,6 +19,7 @@
 #include <asm/pci_x86.h>
 #include <asm/reboot.h>
 #include <asm/setup.h>
+#include <asm/jailhouse_para.h>
 
 static __initdata struct jailhouse_setup_data setup_data;
 static unsigned int precalibrated_tsc_khz;
diff --git a/arch/x86/kernel/process.c b/arch/x86/kernel/process.c
index c93fcfd..8a33d4a 100644
--- a/arch/x86/kernel/process.c
+++ b/arch/x86/kernel/process.c
@@ -22,6 +22,8 @@
 #include <linux/utsname.h>
 #include <linux/stackprotector.h>
 #include <linux/cpuidle.h>
+#include <linux/acpi.h>
+#include <linux/elf-randomize.h>
 #include <trace/events/power.h>
 #include <linux/hw_breakpoint.h>
 #include <asm/cpu.h>
@@ -39,6 +41,7 @@
 #include <asm/desc.h>
 #include <asm/prctl.h>
 #include <asm/spec-ctrl.h>
+#include <asm/proto.h>
 
 /*
  * per-CPU TSS segments. Threads are completely 'soft' on Linux,
diff --git a/arch/x86/kernel/quirks.c b/arch/x86/kernel/quirks.c
index 736348e..8451f38 100644
--- a/arch/x86/kernel/quirks.c
+++ b/arch/x86/kernel/quirks.c
@@ -7,6 +7,7 @@
 #include <linux/irq.h>
 
 #include <asm/hpet.h>
+#include <asm/setup.h>
 
 #if defined(CONFIG_X86_IO_APIC) && defined(CONFIG_SMP) && defined(CONFIG_PCI)
 
diff --git a/arch/x86/kernel/tracepoint.c b/arch/x86/kernel/tracepoint.c
index 5bd30c4..2e85f4d 100644
--- a/arch/x86/kernel/tracepoint.c
+++ b/arch/x86/kernel/tracepoint.c
@@ -10,6 +10,7 @@
 
 #include <asm/hw_irq.h>
 #include <asm/desc.h>
+#include <asm/trace/exceptions.h>
 
 DEFINE_STATIC_KEY_FALSE(trace_pagefault_key);
 
diff --git a/include/linux/efi.h b/include/linux/efi.h
index 845174e..890c4cb 100644
--- a/include/linux/efi.h
+++ b/include/linux/efi.h
@@ -1053,6 +1053,8 @@ extern void efi_initialize_iomem_resources(struct resource *code_resource,
 extern int efi_reboot_quirk_mode;
 extern bool efi_poweroff_required(void);
 
+extern void efifb_setup_from_dmi(struct screen_info *si, const char *opt);
+
 #ifdef CONFIG_EFI_FAKE_MEMMAP
 extern void __init efi_fake_memmap(void);
 #else
diff --git a/include/linux/ftrace.h b/include/linux/ftrace.h
index a397907..182d669 100644
--- a/include/linux/ftrace.h
+++ b/include/linux/ftrace.h
@@ -420,6 +420,9 @@ enum {
 };
 
 void arch_ftrace_update_code(int command);
+void arch_ftrace_update_trampoline(struct ftrace_ops *ops);
+void *arch_ftrace_trampoline_func(struct ftrace_ops *ops, struct dyn_ftrace *rec);
+void arch_ftrace_trampoline_free(struct ftrace_ops *ops);
 
 struct ftrace_rec_iter;
 
diff --git a/include/linux/kexec.h b/include/linux/kexec.h
index 9e4e638..53efeda 100644
--- a/include/linux/kexec.h
+++ b/include/linux/kexec.h
@@ -174,6 +174,7 @@ int kexec_purgatory_get_set_symbol(struct kimage *image, const char *name,
 				   bool get_value);
 void *kexec_purgatory_get_symbol_addr(struct kimage *image, const char *name);
 
+void * __weak arch_kexec_kernel_image_load(struct kimage *image);
 int __weak arch_kexec_apply_relocations_add(struct purgatory_info *pi,
 					    Elf_Shdr *section,
 					    const Elf_Shdr *relsec,
diff --git a/include/linux/of_fdt.h b/include/linux/of_fdt.h
index b9cd9eb..a713e5d 100644
--- a/include/linux/of_fdt.h
+++ b/include/linux/of_fdt.h
@@ -76,6 +76,7 @@ extern int early_init_dt_scan_memory(unsigned long node, const char *uname,
 extern int early_init_dt_scan_chosen_stdout(void);
 extern void early_init_fdt_scan_reserved_mem(void);
 extern void early_init_fdt_reserve_self(void);
+extern void __init early_init_dt_scan_chosen_arch(unsigned long node);
 extern void early_init_dt_add_memory_arch(u64 base, u64 size);
 extern int early_init_dt_mark_hotplug_memory_arch(u64 base, u64 size);
 extern int early_init_dt_reserve_memory_arch(phys_addr_t base, phys_addr_t size,
diff --git a/include/linux/ptrace.h b/include/linux/ptrace.h
index 6c2ffed..a37d7c0 100644
--- a/include/linux/ptrace.h
+++ b/include/linux/ptrace.h
@@ -428,4 +428,5 @@ extern int task_current_syscall(struct task_struct *target, long *callno,
 				unsigned long args[6], unsigned int maxargs,
 				unsigned long *sp, unsigned long *pc);
 
+extern void sigaction_compat_abi(struct k_sigaction *act, struct k_sigaction *oact);
 #endif
-- 
1.8.3.1


^ permalink raw reply related	[flat|nested] 16+ messages in thread
* [PATCH] x86: fix -Wmissing-prototypes warning
@ 2018-11-22  2:04 ` Yi Wang
  0 siblings, 0 replies; 16+ messages in thread
From: Yi Wang @ 2018-11-22  2:04 UTC (permalink / raw)
  To: tglx
  Cc: mingo, bp, hpa, x86, wang.yi59, linux-kernel, ard.biesheuvel,
	linux-efi, pbonzini, rkrcmar, kvm, jgross, akataria,
	virtualization, m.mizuma, peterz, prarit, douly.fnst, dwmw, luto,
	pasha.tatashin, rajvi.jingar, zhe.he, akpm, dyoung,
	takahiro.akashi, ebiederm, bhe, ivan.gorinov, robh,
	andy.shevchenko, frank.rowand, jan.kiszka, jailhouse-dev,
	konrad.wilk

We may get -Wmissing-prototypes warnings when building
kernel with W=1, it's better to fix them as global function
signature can be changed and caller who use the old unchanged
prototypes will be hosed.

This patch fixes most of -Wmissing-prototypes warnings which
are in the root directory of arch/x86/kernel, not including
the subdirectories.

These are the warnings fixed in this patch:
arch/x86/kernel/signal.c:865:17: warning: no previous prototype for ‘sys32_x32_rt_sigreturn’ [-Wmissing-prototypes]
arch/x86/kernel/signal_compat.c:164:6: warning: no previous prototype for ‘sigaction_compat_abi’ [-Wmissing-prototypes]
arch/x86/kernel/traps.c:625:46: warning: no previous prototype for ‘sync_regs’ [-Wmissing-prototypes]
arch/x86/kernel/traps.c:640:24: warning: no previous prototype for ‘fixup_bad_iret’ [-Wmissing-prototypes]
arch/x86/kernel/traps.c:929:13: warning: no previous prototype for ‘trap_init’ [-Wmissing-prototypes]
arch/x86/kernel/irq.c:270:28: warning: no previous prototype for ‘smp_x86_platform_ipi’ [-Wmissing-prototypes]
arch/x86/kernel/irq.c:301:16: warning: no previous prototype for ‘smp_kvm_posted_intr_ipi’ [-Wmissing-prototypes]
arch/x86/kernel/irq.c:314:16: warning: no previous prototype for ‘smp_kvm_posted_intr_wakeup_ipi’ [-Wmissing-prototypes]
arch/x86/kernel/irq.c:328:16: warning: no previous prototype for ‘smp_kvm_posted_intr_nested_ipi’ [-Wmissing-prototypes]
arch/x86/kernel/irq_work.c:16:28: warning: no previous prototype for ‘smp_irq_work_interrupt’ [-Wmissing-prototypes]
arch/x86/kernel/irqinit.c:79:13: warning: no previous prototype for ‘init_IRQ’ [-Wmissing-prototypes]
arch/x86/kernel/quirks.c:672:13: warning: no previous prototype for ‘early_platform_quirks’ [-Wmissing-prototypes]
arch/x86/kernel/tsc.c:1499:15: warning: no previous prototype for ‘calibrate_delay_is_known’ [-Wmissing-prototypes]
arch/x86/kernel/process.c:653:13: warning: no previous prototype for ‘arch_post_acpi_subsys_init’ [-Wmissing-prototypes]
arch/x86/kernel/process.c:717:15: warning: no previous prototype for ‘arch_randomize_brk’ [-Wmissing-prototypes]
arch/x86/kernel/process.c:784:6: warning: no previous prototype for ‘do_arch_prctl_common’ [-Wmissing-prototypes]
arch/x86/kernel/reboot.c:869:6: warning: no previous prototype for ‘nmi_panic_self_stop’ [-Wmissing-prototypes]
arch/x86/kernel/smp.c:176:27: warning: no previous prototype for ‘smp_reboot_interrupt’ [-Wmissing-prototypes]
arch/x86/kernel/smp.c:260:28: warning: no previous prototype for ‘smp_reschedule_interrupt’ [-Wmissing-prototypes]
arch/x86/kernel/smp.c:281:28: warning: no previous prototype for ‘smp_call_function_interrupt’ [-Wmissing-prototypes]
arch/x86/kernel/smp.c:291:28: warning: no previous prototype for ‘smp_call_function_single_interrupt’ [-Wmissing-prototypes]
arch/x86/kernel/ftrace.c:840:6: warning: no previous prototype for ‘arch_ftrace_update_trampoline’ [-Wmissing-prototypes]
arch/x86/kernel/ftrace.c:934:7: warning: no previous prototype for ‘arch_ftrace_trampoline_func’ [-Wmissing-prototypes]
arch/x86/kernel/ftrace.c:946:6: warning: no previous prototype for ‘arch_ftrace_trampoline_free’ [-Wmissing-prototypes]
arch/x86/kernel/crash.c:114:6: warning: no previous prototype for ‘crash_smp_send_stop’ [-Wmissing-prototypes]
arch/x86/kernel/crash.c:351:5: warning: no previous prototype for ‘crash_setup_memmap_entries’ [-Wmissing-prototypes]
arch/x86/kernel/crash.c:424:5: warning: no previous prototype for ‘crash_load_segments’ [-Wmissing-prototypes]
arch/x86/kernel/machine_kexec_64.c:372:7: warning: no previous prototype for ‘arch_kexec_kernel_image_load’ [-Wmissing-prototypes]
arch/x86/kernel/paravirt-spinlocks.c:12:16: warning: no previous prototype for ‘__native_queued_spin_unlock’ [-Wmissing-prototypes]
arch/x86/kernel/paravirt-spinlocks.c:18:6: warning: no previous prototype for ‘pv_is_native_spin_unlock’ [-Wmissing-prototypes]
arch/x86/kernel/paravirt-spinlocks.c:24:16: warning: no previous prototype for ‘__native_vcpu_is_preempted’ [-Wmissing-prototypes]
arch/x86/kernel/paravirt-spinlocks.c:30:6: warning: no previous prototype for ‘pv_is_native_vcpu_is_preempted’ [-Wmissing-prototypes]
arch/x86/kernel/kvm.c:258:1: warning: no previous prototype for ‘do_async_page_fault’ [-Wmissing-prototypes]
arch/x86/kernel/jailhouse.c:200:6: warning: no previous prototype for ‘jailhouse_paravirt’ [-Wmissing-prototypes]
arch/x86/kernel/check.c:91:13: warning: no previous prototype for ‘setup_bios_corruption_check’ [-Wmissing-prototypes]
arch/x86/kernel/check.c:139:6: warning: no previous prototype for ‘check_for_bios_corruption’ [-Wmissing-prototypes]
arch/x86/kernel/devicetree.c:32:13: warning: no previous prototype for ‘early_init_dt_scan_chosen_arch’ [-Wmissing-prototypes]
arch/x86/kernel/devicetree.c:42:13: warning: no previous prototype for ‘add_dtb’ [-Wmissing-prototypes]
arch/x86/kernel/devicetree.c:108:6: warning: no previous prototype for ‘x86_of_pci_init’ [-Wmissing-prototypes]
arch/x86/kernel/devicetree.c:314:13: warning: no previous prototype for ‘x86_dtb_init’ [-Wmissing-prototypes]
arch/x86/kernel/tracepoint.c:16:5: warning: no previous prototype for ‘trace_pagefault_reg’ [-Wmissing-prototypes]
arch/x86/kernel/tracepoint.c:22:6: warning: no previous prototype for ‘trace_pagefault_unreg’ [-Wmissing-prototypes]
arch/x86/kernel/head64.c:113:22: warning: no previous prototype for ‘__startup_64’ [-Wmissing-prototypes]
arch/x86/kernel/head64.c:262:15: warning: no previous prototype for ‘__startup_secondary_64’ [-Wmissing-prototypes]
arch/x86/kernel/head64.c:350:12: warning: no previous prototype for ‘early_make_pgtable’ [-Wmissing-prototypes]

Signed-off-by: Yi Wang <wang.yi59@zte.com.cn>
---
 arch/x86/include/asm/crash.h       | 1 +
 arch/x86/include/asm/efi.h         | 2 --
 arch/x86/include/asm/irq.h         | 7 +++++++
 arch/x86/include/asm/irq_work.h    | 1 +
 arch/x86/include/asm/kvm_para.h    | 1 +
 arch/x86/include/asm/paravirt.h    | 5 +++++
 arch/x86/include/asm/reboot.h      | 1 +
 arch/x86/include/asm/setup.h       | 5 +++++
 arch/x86/include/asm/sighandling.h | 5 +++++
 arch/x86/include/asm/smp.h         | 6 ++++++
 arch/x86/include/asm/traps.h       | 4 ++++
 arch/x86/include/asm/tsc.h         | 1 +
 arch/x86/kernel/check.c            | 3 ++-
 arch/x86/kernel/crash.c            | 1 +
 arch/x86/kernel/devicetree.c       | 1 +
 arch/x86/kernel/jailhouse.c        | 1 +
 arch/x86/kernel/process.c          | 3 +++
 arch/x86/kernel/quirks.c           | 1 +
 arch/x86/kernel/tracepoint.c       | 1 +
 include/linux/efi.h                | 2 ++
 include/linux/ftrace.h             | 3 +++
 include/linux/kexec.h              | 1 +
 include/linux/of_fdt.h             | 1 +
 include/linux/ptrace.h             | 1 +
 24 files changed, 55 insertions(+), 3 deletions(-)

diff --git a/arch/x86/include/asm/crash.h b/arch/x86/include/asm/crash.h
index a7adb2bfb..0acf5ee 100644
--- a/arch/x86/include/asm/crash.h
+++ b/arch/x86/include/asm/crash.h
@@ -6,5 +6,6 @@
 int crash_copy_backup_region(struct kimage *image);
 int crash_setup_memmap_entries(struct kimage *image,
 		struct boot_params *params);
+void crash_smp_send_stop(void);
 
 #endif /* _ASM_X86_CRASH_H */
diff --git a/arch/x86/include/asm/efi.h b/arch/x86/include/asm/efi.h
index eea40d5..063f1d4 100644
--- a/arch/x86/include/asm/efi.h
+++ b/arch/x86/include/asm/efi.h
@@ -173,8 +173,6 @@ static inline bool efi_runtime_supported(void)
 extern struct console early_efi_console;
 extern void parse_efi_setup(u64 phys_addr, u32 data_len);
 
-extern void efifb_setup_from_dmi(struct screen_info *si, const char *opt);
-
 #ifdef CONFIG_EFI_MIXED
 extern void efi_thunk_runtime_setup(void);
 extern efi_status_t efi_thunk_set_virtual_address_map(
diff --git a/arch/x86/include/asm/irq.h b/arch/x86/include/asm/irq.h
index 2395bb7..fbb16e6 100644
--- a/arch/x86/include/asm/irq.h
+++ b/arch/x86/include/asm/irq.h
@@ -30,6 +30,9 @@ static inline int irq_canonicalize(int irq)
 
 #ifdef CONFIG_HAVE_KVM
 extern void kvm_set_posted_intr_wakeup_handler(void (*handler)(void));
+extern __visible void smp_kvm_posted_intr_ipi(struct pt_regs *regs);
+extern __visible void smp_kvm_posted_intr_wakeup_ipi(struct pt_regs *regs);
+extern __visible void smp_kvm_posted_intr_nested_ipi(struct pt_regs *regs);
 #endif
 
 extern void (*x86_platform_ipi_callback)(void);
@@ -41,9 +44,13 @@ static inline int irq_canonicalize(int irq)
 
 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);
+
+extern __visible void smp_x86_platform_ipi(struct pt_regs *regs);
 #define arch_trigger_cpumask_backtrace arch_trigger_cpumask_backtrace
 #endif
 
diff --git a/arch/x86/include/asm/irq_work.h b/arch/x86/include/asm/irq_work.h
index 800ffce..80b35e3 100644
--- a/arch/x86/include/asm/irq_work.h
+++ b/arch/x86/include/asm/irq_work.h
@@ -10,6 +10,7 @@ static inline bool arch_irq_work_has_interrupt(void)
 	return boot_cpu_has(X86_FEATURE_APIC);
 }
 extern void arch_irq_work_raise(void);
+extern __visible void smp_irq_work_interrupt(struct pt_regs *regs);
 #else
 static inline bool arch_irq_work_has_interrupt(void)
 {
diff --git a/arch/x86/include/asm/kvm_para.h b/arch/x86/include/asm/kvm_para.h
index 4c72363..5ed3cf1 100644
--- a/arch/x86/include/asm/kvm_para.h
+++ b/arch/x86/include/asm/kvm_para.h
@@ -92,6 +92,7 @@ static inline long kvm_hypercall4(unsigned int nr, unsigned long p1,
 void kvm_async_pf_task_wake(u32 token);
 u32 kvm_read_and_reset_pf_reason(void);
 extern void kvm_disable_steal_time(void);
+void do_async_page_fault(struct pt_regs *regs, unsigned long error_code);
 
 #ifdef CONFIG_PARAVIRT_SPINLOCKS
 void __init kvm_spinlock_init(void);
diff --git a/arch/x86/include/asm/paravirt.h b/arch/x86/include/asm/paravirt.h
index 4bf42f9..a97f28d 100644
--- a/arch/x86/include/asm/paravirt.h
+++ b/arch/x86/include/asm/paravirt.h
@@ -26,6 +26,11 @@ static inline unsigned long long paravirt_sched_clock(void)
 extern struct static_key paravirt_steal_enabled;
 extern struct static_key paravirt_steal_rq_enabled;
 
+__visible void __native_queued_spin_unlock(struct qspinlock *lock);
+bool pv_is_native_spin_unlock(void);
+__visible bool __native_vcpu_is_preempted(long cpu);
+bool pv_is_native_vcpu_is_preempted(void);
+
 static inline u64 paravirt_steal_clock(int cpu)
 {
 	return PVOP_CALL1(u64, time.steal_clock, cpu);
diff --git a/arch/x86/include/asm/reboot.h b/arch/x86/include/asm/reboot.h
index a671a11..04c17be 100644
--- a/arch/x86/include/asm/reboot.h
+++ b/arch/x86/include/asm/reboot.h
@@ -26,6 +26,7 @@ struct machine_ops {
 #define MRR_APM		1
 
 typedef void (*nmi_shootdown_cb)(int, struct pt_regs*);
+void nmi_panic_self_stop(struct pt_regs *regs);
 void nmi_shootdown_cpus(nmi_shootdown_cb callback);
 void run_crash_ipi_callback(struct pt_regs *regs);
 
diff --git a/arch/x86/include/asm/setup.h b/arch/x86/include/asm/setup.h
index ae13bc9..d85f5fa 100644
--- a/arch/x86/include/asm/setup.h
+++ b/arch/x86/include/asm/setup.h
@@ -26,6 +26,11 @@
 #define OLD_CL_ADDRESS		0x020	/* Relative to real mode data */
 #define NEW_CL_POINTER		0x228	/* Relative to real mode data */
 
+
+unsigned long __startup_64(unsigned long physaddr, struct boot_params *bp);
+unsigned long __startup_secondary_64(void);
+int __init early_make_pgtable(unsigned long address);
+
 #ifndef __ASSEMBLY__
 #include <asm/bootparam.h>
 #include <asm/x86_init.h>
diff --git a/arch/x86/include/asm/sighandling.h b/arch/x86/include/asm/sighandling.h
index bd26834..2fcbd6f 100644
--- a/arch/x86/include/asm/sighandling.h
+++ b/arch/x86/include/asm/sighandling.h
@@ -17,4 +17,9 @@
 int setup_sigcontext(struct sigcontext __user *sc, void __user *fpstate,
 		     struct pt_regs *regs, unsigned long mask);
 
+
+#ifdef CONFIG_X86_X32_ABI
+asmlinkage long sys32_x32_rt_sigreturn(void);
+#endif
+
 #endif /* _ASM_X86_SIGHANDLING_H */
diff --git a/arch/x86/include/asm/smp.h b/arch/x86/include/asm/smp.h
index 547c4fe..2e95b6c 100644
--- a/arch/x86/include/asm/smp.h
+++ b/arch/x86/include/asm/smp.h
@@ -148,6 +148,12 @@ static inline void arch_send_call_function_ipi_mask(const struct cpumask *mask)
 
 void smp_store_boot_cpu_info(void);
 void smp_store_cpu_info(int id);
+
+asmlinkage __visible void smp_reboot_interrupt(void);
+__visible void smp_reschedule_interrupt(struct pt_regs *regs);
+__visible void smp_call_function_interrupt(struct pt_regs *regs);
+__visible void smp_call_function_single_interrupt(struct pt_regs *r);
+
 #define cpu_physical_id(cpu)	per_cpu(x86_cpu_to_apicid, cpu)
 #define cpu_acpi_id(cpu)	per_cpu(x86_cpu_to_acpiid, cpu)
 
diff --git a/arch/x86/include/asm/traps.h b/arch/x86/include/asm/traps.h
index 7a4db72..c950d3d 100644
--- a/arch/x86/include/asm/traps.h
+++ b/arch/x86/include/asm/traps.h
@@ -75,6 +75,10 @@
 dotraplinkage void do_stack_segment(struct pt_regs *regs, long error_code);
 #ifdef CONFIG_X86_64
 dotraplinkage void do_double_fault(struct pt_regs *regs, long error_code);
+asmlinkage __visible notrace struct pt_regs *sync_regs(struct pt_regs *eregs);
+asmlinkage __visible notrace
+struct bad_iret_stack *fixup_bad_iret(struct bad_iret_stack *s);
+void __init trap_init(void);
 #endif
 dotraplinkage void do_general_protection(struct pt_regs *regs, long error_code);
 dotraplinkage void do_page_fault(struct pt_regs *regs, unsigned long error_code);
diff --git a/arch/x86/include/asm/tsc.h b/arch/x86/include/asm/tsc.h
index eb5bbfe..8a0c25c 100644
--- a/arch/x86/include/asm/tsc.h
+++ b/arch/x86/include/asm/tsc.h
@@ -35,6 +35,7 @@ static inline cycles_t get_cycles(void)
 
 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/arch/x86/kernel/check.c b/arch/x86/kernel/check.c
index 1979a76..5136e68 100644
--- a/arch/x86/kernel/check.c
+++ b/arch/x86/kernel/check.c
@@ -9,6 +9,7 @@
 #include <linux/memblock.h>
 
 #include <asm/proto.h>
+#include <asm/setup.h>
 
 /*
  * Some BIOSes seem to corrupt the low 64k of memory during events
@@ -136,7 +137,7 @@ void __init setup_bios_corruption_check(void)
 }
 
 
-void check_for_bios_corruption(void)
+static void check_for_bios_corruption(void)
 {
 	int i;
 	int corruption = 0;
diff --git a/arch/x86/kernel/crash.c b/arch/x86/kernel/crash.c
index f631a3f..c8b07d8 100644
--- a/arch/x86/kernel/crash.c
+++ b/arch/x86/kernel/crash.c
@@ -37,6 +37,7 @@
 #include <asm/reboot.h>
 #include <asm/virtext.h>
 #include <asm/intel_pt.h>
+#include <asm/crash.h>
 
 /* Used while preparing memory map entries for second kernel */
 struct crash_memmap_data {
diff --git a/arch/x86/kernel/devicetree.c b/arch/x86/kernel/devicetree.c
index 7299dcb..8d85e00 100644
--- a/arch/x86/kernel/devicetree.c
+++ b/arch/x86/kernel/devicetree.c
@@ -23,6 +23,7 @@
 #include <asm/pci_x86.h>
 #include <asm/setup.h>
 #include <asm/i8259.h>
+#include <asm/prom.h>
 
 __initdata u64 initial_dtb;
 char __initdata cmd_line[COMMAND_LINE_SIZE];
diff --git a/arch/x86/kernel/jailhouse.c b/arch/x86/kernel/jailhouse.c
index 108c48d..1b2ee55 100644
--- a/arch/x86/kernel/jailhouse.c
+++ b/arch/x86/kernel/jailhouse.c
@@ -19,6 +19,7 @@
 #include <asm/pci_x86.h>
 #include <asm/reboot.h>
 #include <asm/setup.h>
+#include <asm/jailhouse_para.h>
 
 static __initdata struct jailhouse_setup_data setup_data;
 static unsigned int precalibrated_tsc_khz;
diff --git a/arch/x86/kernel/process.c b/arch/x86/kernel/process.c
index c93fcfd..8a33d4a 100644
--- a/arch/x86/kernel/process.c
+++ b/arch/x86/kernel/process.c
@@ -22,6 +22,8 @@
 #include <linux/utsname.h>
 #include <linux/stackprotector.h>
 #include <linux/cpuidle.h>
+#include <linux/acpi.h>
+#include <linux/elf-randomize.h>
 #include <trace/events/power.h>
 #include <linux/hw_breakpoint.h>
 #include <asm/cpu.h>
@@ -39,6 +41,7 @@
 #include <asm/desc.h>
 #include <asm/prctl.h>
 #include <asm/spec-ctrl.h>
+#include <asm/proto.h>
 
 /*
  * per-CPU TSS segments. Threads are completely 'soft' on Linux,
diff --git a/arch/x86/kernel/quirks.c b/arch/x86/kernel/quirks.c
index 736348e..8451f38 100644
--- a/arch/x86/kernel/quirks.c
+++ b/arch/x86/kernel/quirks.c
@@ -7,6 +7,7 @@
 #include <linux/irq.h>
 
 #include <asm/hpet.h>
+#include <asm/setup.h>
 
 #if defined(CONFIG_X86_IO_APIC) && defined(CONFIG_SMP) && defined(CONFIG_PCI)
 
diff --git a/arch/x86/kernel/tracepoint.c b/arch/x86/kernel/tracepoint.c
index 5bd30c4..2e85f4d 100644
--- a/arch/x86/kernel/tracepoint.c
+++ b/arch/x86/kernel/tracepoint.c
@@ -10,6 +10,7 @@
 
 #include <asm/hw_irq.h>
 #include <asm/desc.h>
+#include <asm/trace/exceptions.h>
 
 DEFINE_STATIC_KEY_FALSE(trace_pagefault_key);
 
diff --git a/include/linux/efi.h b/include/linux/efi.h
index 845174e..890c4cb 100644
--- a/include/linux/efi.h
+++ b/include/linux/efi.h
@@ -1053,6 +1053,8 @@ extern void efi_initialize_iomem_resources(struct resource *code_resource,
 extern int efi_reboot_quirk_mode;
 extern bool efi_poweroff_required(void);
 
+extern void efifb_setup_from_dmi(struct screen_info *si, const char *opt);
+
 #ifdef CONFIG_EFI_FAKE_MEMMAP
 extern void __init efi_fake_memmap(void);
 #else
diff --git a/include/linux/ftrace.h b/include/linux/ftrace.h
index a397907..182d669 100644
--- a/include/linux/ftrace.h
+++ b/include/linux/ftrace.h
@@ -420,6 +420,9 @@ enum {
 };
 
 void arch_ftrace_update_code(int command);
+void arch_ftrace_update_trampoline(struct ftrace_ops *ops);
+void *arch_ftrace_trampoline_func(struct ftrace_ops *ops, struct dyn_ftrace *rec);
+void arch_ftrace_trampoline_free(struct ftrace_ops *ops);
 
 struct ftrace_rec_iter;
 
diff --git a/include/linux/kexec.h b/include/linux/kexec.h
index 9e4e638..53efeda 100644
--- a/include/linux/kexec.h
+++ b/include/linux/kexec.h
@@ -174,6 +174,7 @@ int kexec_purgatory_get_set_symbol(struct kimage *image, const char *name,
 				   bool get_value);
 void *kexec_purgatory_get_symbol_addr(struct kimage *image, const char *name);
 
+void * __weak arch_kexec_kernel_image_load(struct kimage *image);
 int __weak arch_kexec_apply_relocations_add(struct purgatory_info *pi,
 					    Elf_Shdr *section,
 					    const Elf_Shdr *relsec,
diff --git a/include/linux/of_fdt.h b/include/linux/of_fdt.h
index b9cd9eb..a713e5d 100644
--- a/include/linux/of_fdt.h
+++ b/include/linux/of_fdt.h
@@ -76,6 +76,7 @@ extern int early_init_dt_scan_memory(unsigned long node, const char *uname,
 extern int early_init_dt_scan_chosen_stdout(void);
 extern void early_init_fdt_scan_reserved_mem(void);
 extern void early_init_fdt_reserve_self(void);
+extern void __init early_init_dt_scan_chosen_arch(unsigned long node);
 extern void early_init_dt_add_memory_arch(u64 base, u64 size);
 extern int early_init_dt_mark_hotplug_memory_arch(u64 base, u64 size);
 extern int early_init_dt_reserve_memory_arch(phys_addr_t base, phys_addr_t size,
diff --git a/include/linux/ptrace.h b/include/linux/ptrace.h
index 6c2ffed..a37d7c0 100644
--- a/include/linux/ptrace.h
+++ b/include/linux/ptrace.h
@@ -428,4 +428,5 @@ extern int task_current_syscall(struct task_struct *target, long *callno,
 				unsigned long args[6], unsigned int maxargs,
 				unsigned long *sp, unsigned long *pc);
 
+extern void sigaction_compat_abi(struct k_sigaction *act, struct k_sigaction *oact);
 #endif
-- 
1.8.3.1

-- 
You received this message because you are subscribed to the Google Groups "Jailhouse" group.
To unsubscribe from this group and stop receiving emails from it, send an email to jailhouse-dev+unsubscribe@googlegroups.com.
For more options, visit https://groups.google.com/d/optout.

^ permalink raw reply related	[flat|nested] 16+ messages in thread
* [PATCH] x86: fix -Wmissing-prototypes warning
@ 2018-11-22  2:04 ` Yi Wang
  0 siblings, 0 replies; 16+ messages in thread
From: Yi Wang @ 2018-11-22  2:04 UTC (permalink / raw)
  To: tglx
  Cc: m.mizuma, linux-efi, anton, kvm, rkrcmar, peterz, jan.kiszka,
	virtualization, pravin.shedge4linux, namit, hpa, frowand.list,
	prarit, robh, zhong.weidong, bhe, devicetree, x86,
	pasha.tatashin, takahiro.akashi, andy.shevchenko, mingo,
	linux-pci, dyoung, wang.yi59, jailhouse-dev, jroedel, keescook,
	konrad.wilk, rostedt, rajvi.jingar, tony.luck, bp, luto, oleg,
	bhelgaas, akataria, frank.rowand, jgross, douly.fnst,
	thomas.lendacky, zhe.he, ard.biesheuvel, kexec, linux-kernel,
	robh+dt, ebiederm, ccross, pbonzini, akpm, up2wing, dwmw,
	ivan.gorinov

We may get -Wmissing-prototypes warnings when building
kernel with W=1, it's better to fix them as global function
signature can be changed and caller who use the old unchanged
prototypes will be hosed.

This patch fixes most of -Wmissing-prototypes warnings which
are in the root directory of arch/x86/kernel, not including
the subdirectories.

These are the warnings fixed in this patch:
arch/x86/kernel/signal.c:865:17: warning: no previous prototype for ‘sys32_x32_rt_sigreturn’ [-Wmissing-prototypes]
arch/x86/kernel/signal_compat.c:164:6: warning: no previous prototype for ‘sigaction_compat_abi’ [-Wmissing-prototypes]
arch/x86/kernel/traps.c:625:46: warning: no previous prototype for ‘sync_regs’ [-Wmissing-prototypes]
arch/x86/kernel/traps.c:640:24: warning: no previous prototype for ‘fixup_bad_iret’ [-Wmissing-prototypes]
arch/x86/kernel/traps.c:929:13: warning: no previous prototype for ‘trap_init’ [-Wmissing-prototypes]
arch/x86/kernel/irq.c:270:28: warning: no previous prototype for ‘smp_x86_platform_ipi’ [-Wmissing-prototypes]
arch/x86/kernel/irq.c:301:16: warning: no previous prototype for ‘smp_kvm_posted_intr_ipi’ [-Wmissing-prototypes]
arch/x86/kernel/irq.c:314:16: warning: no previous prototype for ‘smp_kvm_posted_intr_wakeup_ipi’ [-Wmissing-prototypes]
arch/x86/kernel/irq.c:328:16: warning: no previous prototype for ‘smp_kvm_posted_intr_nested_ipi’ [-Wmissing-prototypes]
arch/x86/kernel/irq_work.c:16:28: warning: no previous prototype for ‘smp_irq_work_interrupt’ [-Wmissing-prototypes]
arch/x86/kernel/irqinit.c:79:13: warning: no previous prototype for ‘init_IRQ’ [-Wmissing-prototypes]
arch/x86/kernel/quirks.c:672:13: warning: no previous prototype for ‘early_platform_quirks’ [-Wmissing-prototypes]
arch/x86/kernel/tsc.c:1499:15: warning: no previous prototype for ‘calibrate_delay_is_known’ [-Wmissing-prototypes]
arch/x86/kernel/process.c:653:13: warning: no previous prototype for ‘arch_post_acpi_subsys_init’ [-Wmissing-prototypes]
arch/x86/kernel/process.c:717:15: warning: no previous prototype for ‘arch_randomize_brk’ [-Wmissing-prototypes]
arch/x86/kernel/process.c:784:6: warning: no previous prototype for ‘do_arch_prctl_common’ [-Wmissing-prototypes]
arch/x86/kernel/reboot.c:869:6: warning: no previous prototype for ‘nmi_panic_self_stop’ [-Wmissing-prototypes]
arch/x86/kernel/smp.c:176:27: warning: no previous prototype for ‘smp_reboot_interrupt’ [-Wmissing-prototypes]
arch/x86/kernel/smp.c:260:28: warning: no previous prototype for ‘smp_reschedule_interrupt’ [-Wmissing-prototypes]
arch/x86/kernel/smp.c:281:28: warning: no previous prototype for ‘smp_call_function_interrupt’ [-Wmissing-prototypes]
arch/x86/kernel/smp.c:291:28: warning: no previous prototype for ‘smp_call_function_single_interrupt’ [-Wmissing-prototypes]
arch/x86/kernel/ftrace.c:840:6: warning: no previous prototype for ‘arch_ftrace_update_trampoline’ [-Wmissing-prototypes]
arch/x86/kernel/ftrace.c:934:7: warning: no previous prototype for ‘arch_ftrace_trampoline_func’ [-Wmissing-prototypes]
arch/x86/kernel/ftrace.c:946:6: warning: no previous prototype for ‘arch_ftrace_trampoline_free’ [-Wmissing-prototypes]
arch/x86/kernel/crash.c:114:6: warning: no previous prototype for ‘crash_smp_send_stop’ [-Wmissing-prototypes]
arch/x86/kernel/crash.c:351:5: warning: no previous prototype for ‘crash_setup_memmap_entries’ [-Wmissing-prototypes]
arch/x86/kernel/crash.c:424:5: warning: no previous prototype for ‘crash_load_segments’ [-Wmissing-prototypes]
arch/x86/kernel/machine_kexec_64.c:372:7: warning: no previous prototype for ‘arch_kexec_kernel_image_load’ [-Wmissing-prototypes]
arch/x86/kernel/paravirt-spinlocks.c:12:16: warning: no previous prototype for ‘__native_queued_spin_unlock’ [-Wmissing-prototypes]
arch/x86/kernel/paravirt-spinlocks.c:18:6: warning: no previous prototype for ‘pv_is_native_spin_unlock’ [-Wmissing-prototypes]
arch/x86/kernel/paravirt-spinlocks.c:24:16: warning: no previous prototype for ‘__native_vcpu_is_preempted’ [-Wmissing-prototypes]
arch/x86/kernel/paravirt-spinlocks.c:30:6: warning: no previous prototype for ‘pv_is_native_vcpu_is_preempted’ [-Wmissing-prototypes]
arch/x86/kernel/kvm.c:258:1: warning: no previous prototype for ‘do_async_page_fault’ [-Wmissing-prototypes]
arch/x86/kernel/jailhouse.c:200:6: warning: no previous prototype for ‘jailhouse_paravirt’ [-Wmissing-prototypes]
arch/x86/kernel/check.c:91:13: warning: no previous prototype for ‘setup_bios_corruption_check’ [-Wmissing-prototypes]
arch/x86/kernel/check.c:139:6: warning: no previous prototype for ‘check_for_bios_corruption’ [-Wmissing-prototypes]
arch/x86/kernel/devicetree.c:32:13: warning: no previous prototype for ‘early_init_dt_scan_chosen_arch’ [-Wmissing-prototypes]
arch/x86/kernel/devicetree.c:42:13: warning: no previous prototype for ‘add_dtb’ [-Wmissing-prototypes]
arch/x86/kernel/devicetree.c:108:6: warning: no previous prototype for ‘x86_of_pci_init’ [-Wmissing-prototypes]
arch/x86/kernel/devicetree.c:314:13: warning: no previous prototype for ‘x86_dtb_init’ [-Wmissing-prototypes]
arch/x86/kernel/tracepoint.c:16:5: warning: no previous prototype for ‘trace_pagefault_reg’ [-Wmissing-prototypes]
arch/x86/kernel/tracepoint.c:22:6: warning: no previous prototype for ‘trace_pagefault_unreg’ [-Wmissing-prototypes]
arch/x86/kernel/head64.c:113:22: warning: no previous prototype for ‘__startup_64’ [-Wmissing-prototypes]
arch/x86/kernel/head64.c:262:15: warning: no previous prototype for ‘__startup_secondary_64’ [-Wmissing-prototypes]
arch/x86/kernel/head64.c:350:12: warning: no previous prototype for ‘early_make_pgtable’ [-Wmissing-prototypes]

Signed-off-by: Yi Wang <wang.yi59@zte.com.cn>
---
 arch/x86/include/asm/crash.h       | 1 +
 arch/x86/include/asm/efi.h         | 2 --
 arch/x86/include/asm/irq.h         | 7 +++++++
 arch/x86/include/asm/irq_work.h    | 1 +
 arch/x86/include/asm/kvm_para.h    | 1 +
 arch/x86/include/asm/paravirt.h    | 5 +++++
 arch/x86/include/asm/reboot.h      | 1 +
 arch/x86/include/asm/setup.h       | 5 +++++
 arch/x86/include/asm/sighandling.h | 5 +++++
 arch/x86/include/asm/smp.h         | 6 ++++++
 arch/x86/include/asm/traps.h       | 4 ++++
 arch/x86/include/asm/tsc.h         | 1 +
 arch/x86/kernel/check.c            | 3 ++-
 arch/x86/kernel/crash.c            | 1 +
 arch/x86/kernel/devicetree.c       | 1 +
 arch/x86/kernel/jailhouse.c        | 1 +
 arch/x86/kernel/process.c          | 3 +++
 arch/x86/kernel/quirks.c           | 1 +
 arch/x86/kernel/tracepoint.c       | 1 +
 include/linux/efi.h                | 2 ++
 include/linux/ftrace.h             | 3 +++
 include/linux/kexec.h              | 1 +
 include/linux/of_fdt.h             | 1 +
 include/linux/ptrace.h             | 1 +
 24 files changed, 55 insertions(+), 3 deletions(-)

diff --git a/arch/x86/include/asm/crash.h b/arch/x86/include/asm/crash.h
index a7adb2bfb..0acf5ee 100644
--- a/arch/x86/include/asm/crash.h
+++ b/arch/x86/include/asm/crash.h
@@ -6,5 +6,6 @@
 int crash_copy_backup_region(struct kimage *image);
 int crash_setup_memmap_entries(struct kimage *image,
 		struct boot_params *params);
+void crash_smp_send_stop(void);
 
 #endif /* _ASM_X86_CRASH_H */
diff --git a/arch/x86/include/asm/efi.h b/arch/x86/include/asm/efi.h
index eea40d5..063f1d4 100644
--- a/arch/x86/include/asm/efi.h
+++ b/arch/x86/include/asm/efi.h
@@ -173,8 +173,6 @@ static inline bool efi_runtime_supported(void)
 extern struct console early_efi_console;
 extern void parse_efi_setup(u64 phys_addr, u32 data_len);
 
-extern void efifb_setup_from_dmi(struct screen_info *si, const char *opt);
-
 #ifdef CONFIG_EFI_MIXED
 extern void efi_thunk_runtime_setup(void);
 extern efi_status_t efi_thunk_set_virtual_address_map(
diff --git a/arch/x86/include/asm/irq.h b/arch/x86/include/asm/irq.h
index 2395bb7..fbb16e6 100644
--- a/arch/x86/include/asm/irq.h
+++ b/arch/x86/include/asm/irq.h
@@ -30,6 +30,9 @@ static inline int irq_canonicalize(int irq)
 
 #ifdef CONFIG_HAVE_KVM
 extern void kvm_set_posted_intr_wakeup_handler(void (*handler)(void));
+extern __visible void smp_kvm_posted_intr_ipi(struct pt_regs *regs);
+extern __visible void smp_kvm_posted_intr_wakeup_ipi(struct pt_regs *regs);
+extern __visible void smp_kvm_posted_intr_nested_ipi(struct pt_regs *regs);
 #endif
 
 extern void (*x86_platform_ipi_callback)(void);
@@ -41,9 +44,13 @@ static inline int irq_canonicalize(int irq)
 
 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);
+
+extern __visible void smp_x86_platform_ipi(struct pt_regs *regs);
 #define arch_trigger_cpumask_backtrace arch_trigger_cpumask_backtrace
 #endif
 
diff --git a/arch/x86/include/asm/irq_work.h b/arch/x86/include/asm/irq_work.h
index 800ffce..80b35e3 100644
--- a/arch/x86/include/asm/irq_work.h
+++ b/arch/x86/include/asm/irq_work.h
@@ -10,6 +10,7 @@ static inline bool arch_irq_work_has_interrupt(void)
 	return boot_cpu_has(X86_FEATURE_APIC);
 }
 extern void arch_irq_work_raise(void);
+extern __visible void smp_irq_work_interrupt(struct pt_regs *regs);
 #else
 static inline bool arch_irq_work_has_interrupt(void)
 {
diff --git a/arch/x86/include/asm/kvm_para.h b/arch/x86/include/asm/kvm_para.h
index 4c72363..5ed3cf1 100644
--- a/arch/x86/include/asm/kvm_para.h
+++ b/arch/x86/include/asm/kvm_para.h
@@ -92,6 +92,7 @@ static inline long kvm_hypercall4(unsigned int nr, unsigned long p1,
 void kvm_async_pf_task_wake(u32 token);
 u32 kvm_read_and_reset_pf_reason(void);
 extern void kvm_disable_steal_time(void);
+void do_async_page_fault(struct pt_regs *regs, unsigned long error_code);
 
 #ifdef CONFIG_PARAVIRT_SPINLOCKS
 void __init kvm_spinlock_init(void);
diff --git a/arch/x86/include/asm/paravirt.h b/arch/x86/include/asm/paravirt.h
index 4bf42f9..a97f28d 100644
--- a/arch/x86/include/asm/paravirt.h
+++ b/arch/x86/include/asm/paravirt.h
@@ -26,6 +26,11 @@ static inline unsigned long long paravirt_sched_clock(void)
 extern struct static_key paravirt_steal_enabled;
 extern struct static_key paravirt_steal_rq_enabled;
 
+__visible void __native_queued_spin_unlock(struct qspinlock *lock);
+bool pv_is_native_spin_unlock(void);
+__visible bool __native_vcpu_is_preempted(long cpu);
+bool pv_is_native_vcpu_is_preempted(void);
+
 static inline u64 paravirt_steal_clock(int cpu)
 {
 	return PVOP_CALL1(u64, time.steal_clock, cpu);
diff --git a/arch/x86/include/asm/reboot.h b/arch/x86/include/asm/reboot.h
index a671a11..04c17be 100644
--- a/arch/x86/include/asm/reboot.h
+++ b/arch/x86/include/asm/reboot.h
@@ -26,6 +26,7 @@ struct machine_ops {
 #define MRR_APM		1
 
 typedef void (*nmi_shootdown_cb)(int, struct pt_regs*);
+void nmi_panic_self_stop(struct pt_regs *regs);
 void nmi_shootdown_cpus(nmi_shootdown_cb callback);
 void run_crash_ipi_callback(struct pt_regs *regs);
 
diff --git a/arch/x86/include/asm/setup.h b/arch/x86/include/asm/setup.h
index ae13bc9..d85f5fa 100644
--- a/arch/x86/include/asm/setup.h
+++ b/arch/x86/include/asm/setup.h
@@ -26,6 +26,11 @@
 #define OLD_CL_ADDRESS		0x020	/* Relative to real mode data */
 #define NEW_CL_POINTER		0x228	/* Relative to real mode data */
 
+
+unsigned long __startup_64(unsigned long physaddr, struct boot_params *bp);
+unsigned long __startup_secondary_64(void);
+int __init early_make_pgtable(unsigned long address);
+
 #ifndef __ASSEMBLY__
 #include <asm/bootparam.h>
 #include <asm/x86_init.h>
diff --git a/arch/x86/include/asm/sighandling.h b/arch/x86/include/asm/sighandling.h
index bd26834..2fcbd6f 100644
--- a/arch/x86/include/asm/sighandling.h
+++ b/arch/x86/include/asm/sighandling.h
@@ -17,4 +17,9 @@
 int setup_sigcontext(struct sigcontext __user *sc, void __user *fpstate,
 		     struct pt_regs *regs, unsigned long mask);
 
+
+#ifdef CONFIG_X86_X32_ABI
+asmlinkage long sys32_x32_rt_sigreturn(void);
+#endif
+
 #endif /* _ASM_X86_SIGHANDLING_H */
diff --git a/arch/x86/include/asm/smp.h b/arch/x86/include/asm/smp.h
index 547c4fe..2e95b6c 100644
--- a/arch/x86/include/asm/smp.h
+++ b/arch/x86/include/asm/smp.h
@@ -148,6 +148,12 @@ static inline void arch_send_call_function_ipi_mask(const struct cpumask *mask)
 
 void smp_store_boot_cpu_info(void);
 void smp_store_cpu_info(int id);
+
+asmlinkage __visible void smp_reboot_interrupt(void);
+__visible void smp_reschedule_interrupt(struct pt_regs *regs);
+__visible void smp_call_function_interrupt(struct pt_regs *regs);
+__visible void smp_call_function_single_interrupt(struct pt_regs *r);
+
 #define cpu_physical_id(cpu)	per_cpu(x86_cpu_to_apicid, cpu)
 #define cpu_acpi_id(cpu)	per_cpu(x86_cpu_to_acpiid, cpu)
 
diff --git a/arch/x86/include/asm/traps.h b/arch/x86/include/asm/traps.h
index 7a4db72..c950d3d 100644
--- a/arch/x86/include/asm/traps.h
+++ b/arch/x86/include/asm/traps.h
@@ -75,6 +75,10 @@
 dotraplinkage void do_stack_segment(struct pt_regs *regs, long error_code);
 #ifdef CONFIG_X86_64
 dotraplinkage void do_double_fault(struct pt_regs *regs, long error_code);
+asmlinkage __visible notrace struct pt_regs *sync_regs(struct pt_regs *eregs);
+asmlinkage __visible notrace
+struct bad_iret_stack *fixup_bad_iret(struct bad_iret_stack *s);
+void __init trap_init(void);
 #endif
 dotraplinkage void do_general_protection(struct pt_regs *regs, long error_code);
 dotraplinkage void do_page_fault(struct pt_regs *regs, unsigned long error_code);
diff --git a/arch/x86/include/asm/tsc.h b/arch/x86/include/asm/tsc.h
index eb5bbfe..8a0c25c 100644
--- a/arch/x86/include/asm/tsc.h
+++ b/arch/x86/include/asm/tsc.h
@@ -35,6 +35,7 @@ static inline cycles_t get_cycles(void)
 
 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/arch/x86/kernel/check.c b/arch/x86/kernel/check.c
index 1979a76..5136e68 100644
--- a/arch/x86/kernel/check.c
+++ b/arch/x86/kernel/check.c
@@ -9,6 +9,7 @@
 #include <linux/memblock.h>
 
 #include <asm/proto.h>
+#include <asm/setup.h>
 
 /*
  * Some BIOSes seem to corrupt the low 64k of memory during events
@@ -136,7 +137,7 @@ void __init setup_bios_corruption_check(void)
 }
 
 
-void check_for_bios_corruption(void)
+static void check_for_bios_corruption(void)
 {
 	int i;
 	int corruption = 0;
diff --git a/arch/x86/kernel/crash.c b/arch/x86/kernel/crash.c
index f631a3f..c8b07d8 100644
--- a/arch/x86/kernel/crash.c
+++ b/arch/x86/kernel/crash.c
@@ -37,6 +37,7 @@
 #include <asm/reboot.h>
 #include <asm/virtext.h>
 #include <asm/intel_pt.h>
+#include <asm/crash.h>
 
 /* Used while preparing memory map entries for second kernel */
 struct crash_memmap_data {
diff --git a/arch/x86/kernel/devicetree.c b/arch/x86/kernel/devicetree.c
index 7299dcb..8d85e00 100644
--- a/arch/x86/kernel/devicetree.c
+++ b/arch/x86/kernel/devicetree.c
@@ -23,6 +23,7 @@
 #include <asm/pci_x86.h>
 #include <asm/setup.h>
 #include <asm/i8259.h>
+#include <asm/prom.h>
 
 __initdata u64 initial_dtb;
 char __initdata cmd_line[COMMAND_LINE_SIZE];
diff --git a/arch/x86/kernel/jailhouse.c b/arch/x86/kernel/jailhouse.c
index 108c48d..1b2ee55 100644
--- a/arch/x86/kernel/jailhouse.c
+++ b/arch/x86/kernel/jailhouse.c
@@ -19,6 +19,7 @@
 #include <asm/pci_x86.h>
 #include <asm/reboot.h>
 #include <asm/setup.h>
+#include <asm/jailhouse_para.h>
 
 static __initdata struct jailhouse_setup_data setup_data;
 static unsigned int precalibrated_tsc_khz;
diff --git a/arch/x86/kernel/process.c b/arch/x86/kernel/process.c
index c93fcfd..8a33d4a 100644
--- a/arch/x86/kernel/process.c
+++ b/arch/x86/kernel/process.c
@@ -22,6 +22,8 @@
 #include <linux/utsname.h>
 #include <linux/stackprotector.h>
 #include <linux/cpuidle.h>
+#include <linux/acpi.h>
+#include <linux/elf-randomize.h>
 #include <trace/events/power.h>
 #include <linux/hw_breakpoint.h>
 #include <asm/cpu.h>
@@ -39,6 +41,7 @@
 #include <asm/desc.h>
 #include <asm/prctl.h>
 #include <asm/spec-ctrl.h>
+#include <asm/proto.h>
 
 /*
  * per-CPU TSS segments. Threads are completely 'soft' on Linux,
diff --git a/arch/x86/kernel/quirks.c b/arch/x86/kernel/quirks.c
index 736348e..8451f38 100644
--- a/arch/x86/kernel/quirks.c
+++ b/arch/x86/kernel/quirks.c
@@ -7,6 +7,7 @@
 #include <linux/irq.h>
 
 #include <asm/hpet.h>
+#include <asm/setup.h>
 
 #if defined(CONFIG_X86_IO_APIC) && defined(CONFIG_SMP) && defined(CONFIG_PCI)
 
diff --git a/arch/x86/kernel/tracepoint.c b/arch/x86/kernel/tracepoint.c
index 5bd30c4..2e85f4d 100644
--- a/arch/x86/kernel/tracepoint.c
+++ b/arch/x86/kernel/tracepoint.c
@@ -10,6 +10,7 @@
 
 #include <asm/hw_irq.h>
 #include <asm/desc.h>
+#include <asm/trace/exceptions.h>
 
 DEFINE_STATIC_KEY_FALSE(trace_pagefault_key);
 
diff --git a/include/linux/efi.h b/include/linux/efi.h
index 845174e..890c4cb 100644
--- a/include/linux/efi.h
+++ b/include/linux/efi.h
@@ -1053,6 +1053,8 @@ extern void efi_initialize_iomem_resources(struct resource *code_resource,
 extern int efi_reboot_quirk_mode;
 extern bool efi_poweroff_required(void);
 
+extern void efifb_setup_from_dmi(struct screen_info *si, const char *opt);
+
 #ifdef CONFIG_EFI_FAKE_MEMMAP
 extern void __init efi_fake_memmap(void);
 #else
diff --git a/include/linux/ftrace.h b/include/linux/ftrace.h
index a397907..182d669 100644
--- a/include/linux/ftrace.h
+++ b/include/linux/ftrace.h
@@ -420,6 +420,9 @@ enum {
 };
 
 void arch_ftrace_update_code(int command);
+void arch_ftrace_update_trampoline(struct ftrace_ops *ops);
+void *arch_ftrace_trampoline_func(struct ftrace_ops *ops, struct dyn_ftrace *rec);
+void arch_ftrace_trampoline_free(struct ftrace_ops *ops);
 
 struct ftrace_rec_iter;
 
diff --git a/include/linux/kexec.h b/include/linux/kexec.h
index 9e4e638..53efeda 100644
--- a/include/linux/kexec.h
+++ b/include/linux/kexec.h
@@ -174,6 +174,7 @@ int kexec_purgatory_get_set_symbol(struct kimage *image, const char *name,
 				   bool get_value);
 void *kexec_purgatory_get_symbol_addr(struct kimage *image, const char *name);
 
+void * __weak arch_kexec_kernel_image_load(struct kimage *image);
 int __weak arch_kexec_apply_relocations_add(struct purgatory_info *pi,
 					    Elf_Shdr *section,
 					    const Elf_Shdr *relsec,
diff --git a/include/linux/of_fdt.h b/include/linux/of_fdt.h
index b9cd9eb..a713e5d 100644
--- a/include/linux/of_fdt.h
+++ b/include/linux/of_fdt.h
@@ -76,6 +76,7 @@ extern int early_init_dt_scan_memory(unsigned long node, const char *uname,
 extern int early_init_dt_scan_chosen_stdout(void);
 extern void early_init_fdt_scan_reserved_mem(void);
 extern void early_init_fdt_reserve_self(void);
+extern void __init early_init_dt_scan_chosen_arch(unsigned long node);
 extern void early_init_dt_add_memory_arch(u64 base, u64 size);
 extern int early_init_dt_mark_hotplug_memory_arch(u64 base, u64 size);
 extern int early_init_dt_reserve_memory_arch(phys_addr_t base, phys_addr_t size,
diff --git a/include/linux/ptrace.h b/include/linux/ptrace.h
index 6c2ffed..a37d7c0 100644
--- a/include/linux/ptrace.h
+++ b/include/linux/ptrace.h
@@ -428,4 +428,5 @@ extern int task_current_syscall(struct task_struct *target, long *callno,
 				unsigned long args[6], unsigned int maxargs,
 				unsigned long *sp, unsigned long *pc);
 
+extern void sigaction_compat_abi(struct k_sigaction *act, struct k_sigaction *oact);
 #endif
-- 
1.8.3.1


_______________________________________________
kexec mailing list
kexec@lists.infradead.org
http://lists.infradead.org/mailman/listinfo/kexec

^ permalink raw reply related	[flat|nested] 16+ messages in thread
* Re: [PATCH] x86: fix -Wmissing-prototypes warning
  2018-11-22  2:04 ` Yi Wang
  (?)
@ 2018-11-22  8:48   ` Ingo Molnar
  -1 siblings, 0 replies; 16+ messages in thread
From: Ingo Molnar @ 2018-11-22  8:48 UTC (permalink / raw)
  To: Yi Wang
  Cc: tglx, mingo, bp, hpa, x86, linux-kernel, ard.biesheuvel,
	linux-efi, pbonzini, rkrcmar, kvm, jgross, akataria,
	virtualization, m.mizuma, peterz, prarit, douly.fnst, dwmw, luto,
	pasha.tatashin, rajvi.jingar, zhe.he, akpm, dyoung,
	takahiro.akashi, ebiederm, bhe, ivan.gorinov, robh,
	andy.shevchenko, frank.rowand, jan.kiszka, jailhouse-dev,
	konrad.wilk, thomas.lendacky, pravin.shedge4linux, namit,
	jroedel, bhelgaas, linux-pci, keescook, anton, ccross, tony.luck,
	rostedt, kexec, robh+dt, frowand.list, devicetree, oleg,
	zhong.weidong, up2wing


* Yi Wang <wang.yi59@zte.com.cn> wrote:

> We may get -Wmissing-prototypes warnings when building
> kernel with W=1, it's better to fix them as global function
> signature can be changed and caller who use the old unchanged
> prototypes will be hosed.
> 
> This patch fixes most of -Wmissing-prototypes warnings which
> are in the root directory of arch/x86/kernel, not including
> the subdirectories.
> 
> These are the warnings fixed in this patch:
> arch/x86/kernel/signal.c:865:17: warning: no previous prototype for ‘sys32_x32_rt_sigreturn’ [-Wmissing-prototypes]
> arch/x86/kernel/signal_compat.c:164:6: warning: no previous prototype for ‘sigaction_compat_abi’ [-Wmissing-prototypes]
> arch/x86/kernel/traps.c:625:46: warning: no previous prototype for ‘sync_regs’ [-Wmissing-prototypes]
> arch/x86/kernel/traps.c:640:24: warning: no previous prototype for ‘fixup_bad_iret’ [-Wmissing-prototypes]
> arch/x86/kernel/traps.c:929:13: warning: no previous prototype for ‘trap_init’ [-Wmissing-prototypes]
> arch/x86/kernel/irq.c:270:28: warning: no previous prototype for ‘smp_x86_platform_ipi’ [-Wmissing-prototypes]
> arch/x86/kernel/irq.c:301:16: warning: no previous prototype for ‘smp_kvm_posted_intr_ipi’ [-Wmissing-prototypes]
> arch/x86/kernel/irq.c:314:16: warning: no previous prototype for ‘smp_kvm_posted_intr_wakeup_ipi’ [-Wmissing-prototypes]
> arch/x86/kernel/irq.c:328:16: warning: no previous prototype for ‘smp_kvm_posted_intr_nested_ipi’ [-Wmissing-prototypes]
> arch/x86/kernel/irq_work.c:16:28: warning: no previous prototype for ‘smp_irq_work_interrupt’ [-Wmissing-prototypes]
> arch/x86/kernel/irqinit.c:79:13: warning: no previous prototype for ‘init_IRQ’ [-Wmissing-prototypes]
> arch/x86/kernel/quirks.c:672:13: warning: no previous prototype for ‘early_platform_quirks’ [-Wmissing-prototypes]
> arch/x86/kernel/tsc.c:1499:15: warning: no previous prototype for ‘calibrate_delay_is_known’ [-Wmissing-prototypes]
> arch/x86/kernel/process.c:653:13: warning: no previous prototype for ‘arch_post_acpi_subsys_init’ [-Wmissing-prototypes]
> arch/x86/kernel/process.c:717:15: warning: no previous prototype for ‘arch_randomize_brk’ [-Wmissing-prototypes]
> arch/x86/kernel/process.c:784:6: warning: no previous prototype for ‘do_arch_prctl_common’ [-Wmissing-prototypes]
> arch/x86/kernel/reboot.c:869:6: warning: no previous prototype for ‘nmi_panic_self_stop’ [-Wmissing-prototypes]
> arch/x86/kernel/smp.c:176:27: warning: no previous prototype for ‘smp_reboot_interrupt’ [-Wmissing-prototypes]
> arch/x86/kernel/smp.c:260:28: warning: no previous prototype for ‘smp_reschedule_interrupt’ [-Wmissing-prototypes]
> arch/x86/kernel/smp.c:281:28: warning: no previous prototype for ‘smp_call_function_interrupt’ [-Wmissing-prototypes]
> arch/x86/kernel/smp.c:291:28: warning: no previous prototype for ‘smp_call_function_single_interrupt’ [-Wmissing-prototypes]
> arch/x86/kernel/ftrace.c:840:6: warning: no previous prototype for ‘arch_ftrace_update_trampoline’ [-Wmissing-prototypes]
> arch/x86/kernel/ftrace.c:934:7: warning: no previous prototype for ‘arch_ftrace_trampoline_func’ [-Wmissing-prototypes]
> arch/x86/kernel/ftrace.c:946:6: warning: no previous prototype for ‘arch_ftrace_trampoline_free’ [-Wmissing-prototypes]
> arch/x86/kernel/crash.c:114:6: warning: no previous prototype for ‘crash_smp_send_stop’ [-Wmissing-prototypes]
> arch/x86/kernel/crash.c:351:5: warning: no previous prototype for ‘crash_setup_memmap_entries’ [-Wmissing-prototypes]
> arch/x86/kernel/crash.c:424:5: warning: no previous prototype for ‘crash_load_segments’ [-Wmissing-prototypes]
> arch/x86/kernel/machine_kexec_64.c:372:7: warning: no previous prototype for ‘arch_kexec_kernel_image_load’ [-Wmissing-prototypes]
> arch/x86/kernel/paravirt-spinlocks.c:12:16: warning: no previous prototype for ‘__native_queued_spin_unlock’ [-Wmissing-prototypes]
> arch/x86/kernel/paravirt-spinlocks.c:18:6: warning: no previous prototype for ‘pv_is_native_spin_unlock’ [-Wmissing-prototypes]
> arch/x86/kernel/paravirt-spinlocks.c:24:16: warning: no previous prototype for ‘__native_vcpu_is_preempted’ [-Wmissing-prototypes]
> arch/x86/kernel/paravirt-spinlocks.c:30:6: warning: no previous prototype for ‘pv_is_native_vcpu_is_preempted’ [-Wmissing-prototypes]
> arch/x86/kernel/kvm.c:258:1: warning: no previous prototype for ‘do_async_page_fault’ [-Wmissing-prototypes]
> arch/x86/kernel/jailhouse.c:200:6: warning: no previous prototype for ‘jailhouse_paravirt’ [-Wmissing-prototypes]
> arch/x86/kernel/check.c:91:13: warning: no previous prototype for ‘setup_bios_corruption_check’ [-Wmissing-prototypes]
> arch/x86/kernel/check.c:139:6: warning: no previous prototype for ‘check_for_bios_corruption’ [-Wmissing-prototypes]
> arch/x86/kernel/devicetree.c:32:13: warning: no previous prototype for ‘early_init_dt_scan_chosen_arch’ [-Wmissing-prototypes]
> arch/x86/kernel/devicetree.c:42:13: warning: no previous prototype for ‘add_dtb’ [-Wmissing-prototypes]
> arch/x86/kernel/devicetree.c:108:6: warning: no previous prototype for ‘x86_of_pci_init’ [-Wmissing-prototypes]
> arch/x86/kernel/devicetree.c:314:13: warning: no previous prototype for ‘x86_dtb_init’ [-Wmissing-prototypes]
> arch/x86/kernel/tracepoint.c:16:5: warning: no previous prototype for ‘trace_pagefault_reg’ [-Wmissing-prototypes]
> arch/x86/kernel/tracepoint.c:22:6: warning: no previous prototype for ‘trace_pagefault_unreg’ [-Wmissing-prototypes]
> arch/x86/kernel/head64.c:113:22: warning: no previous prototype for ‘__startup_64’ [-Wmissing-prototypes]
> arch/x86/kernel/head64.c:262:15: warning: no previous prototype for ‘__startup_secondary_64’ [-Wmissing-prototypes]
> arch/x86/kernel/head64.c:350:12: warning: no previous prototype for ‘early_make_pgtable’ [-Wmissing-prototypes]
> 
> Signed-off-by: Yi Wang <wang.yi59@zte.com.cn>
> ---
>  arch/x86/include/asm/crash.h       | 1 +
>  arch/x86/include/asm/efi.h         | 2 --
>  arch/x86/include/asm/irq.h         | 7 +++++++
>  arch/x86/include/asm/irq_work.h    | 1 +
>  arch/x86/include/asm/kvm_para.h    | 1 +
>  arch/x86/include/asm/paravirt.h    | 5 +++++
>  arch/x86/include/asm/reboot.h      | 1 +
>  arch/x86/include/asm/setup.h       | 5 +++++
>  arch/x86/include/asm/sighandling.h | 5 +++++
>  arch/x86/include/asm/smp.h         | 6 ++++++
>  arch/x86/include/asm/traps.h       | 4 ++++
>  arch/x86/include/asm/tsc.h         | 1 +
>  arch/x86/kernel/check.c            | 3 ++-
>  arch/x86/kernel/crash.c            | 1 +
>  arch/x86/kernel/devicetree.c       | 1 +
>  arch/x86/kernel/jailhouse.c        | 1 +
>  arch/x86/kernel/process.c          | 3 +++
>  arch/x86/kernel/quirks.c           | 1 +
>  arch/x86/kernel/tracepoint.c       | 1 +
>  include/linux/efi.h                | 2 ++
>  include/linux/ftrace.h             | 3 +++
>  include/linux/kexec.h              | 1 +
>  include/linux/of_fdt.h             | 1 +
>  include/linux/ptrace.h             | 1 +
>  24 files changed, 55 insertions(+), 3 deletions(-)

Breaks 32-bit compilation:

./arch/x86/include/asm/setup.h: Assembler messages:
./arch/x86/include/asm/setup.h:30: Error: no such instruction: `unsigned long __startup_64(unsigned long physaddr,struct boot_params *bp)'

I'll skip the setup.h bits - let's hope that's the only bug.

Thanks,

	Ingo

^ permalink raw reply	[flat|nested] 16+ messages in thread
* Re: [PATCH] x86: fix -Wmissing-prototypes warning
@ 2018-11-22  8:48   ` Ingo Molnar
  0 siblings, 0 replies; 16+ messages in thread
From: Ingo Molnar @ 2018-11-22  8:48 UTC (permalink / raw)
  To: Yi Wang
  Cc: tglx, mingo, bp, hpa, x86, linux-kernel, ard.biesheuvel,
	linux-efi, pbonzini, rkrcmar, kvm, jgross, akataria,
	virtualization, m.mizuma, peterz, prarit, douly.fnst, dwmw, luto,
	pasha.tatashin, rajvi.jingar, zhe.he, akpm, dyoung,
	takahiro.akashi, ebiederm, bhe, ivan.gorinov, robh,
	andy.shevchenko, frank.rowand, jan.kiszka, jailhouse-dev,
	konrad.wilk, thomas.lendacky, pravin.shedge4linux, namit,
	jroedel


* Yi Wang <wang.yi59@zte.com.cn> wrote:

> We may get -Wmissing-prototypes warnings when building
> kernel with W=1, it's better to fix them as global function
> signature can be changed and caller who use the old unchanged
> prototypes will be hosed.
> 
> This patch fixes most of -Wmissing-prototypes warnings which
> are in the root directory of arch/x86/kernel, not including
> the subdirectories.
> 
> These are the warnings fixed in this patch:
> arch/x86/kernel/signal.c:865:17: warning: no previous prototype for ‘sys32_x32_rt_sigreturn’ [-Wmissing-prototypes]
> arch/x86/kernel/signal_compat.c:164:6: warning: no previous prototype for ‘sigaction_compat_abi’ [-Wmissing-prototypes]
> arch/x86/kernel/traps.c:625:46: warning: no previous prototype for ‘sync_regs’ [-Wmissing-prototypes]
> arch/x86/kernel/traps.c:640:24: warning: no previous prototype for ‘fixup_bad_iret’ [-Wmissing-prototypes]
> arch/x86/kernel/traps.c:929:13: warning: no previous prototype for ‘trap_init’ [-Wmissing-prototypes]
> arch/x86/kernel/irq.c:270:28: warning: no previous prototype for ‘smp_x86_platform_ipi’ [-Wmissing-prototypes]
> arch/x86/kernel/irq.c:301:16: warning: no previous prototype for ‘smp_kvm_posted_intr_ipi’ [-Wmissing-prototypes]
> arch/x86/kernel/irq.c:314:16: warning: no previous prototype for ‘smp_kvm_posted_intr_wakeup_ipi’ [-Wmissing-prototypes]
> arch/x86/kernel/irq.c:328:16: warning: no previous prototype for ‘smp_kvm_posted_intr_nested_ipi’ [-Wmissing-prototypes]
> arch/x86/kernel/irq_work.c:16:28: warning: no previous prototype for ‘smp_irq_work_interrupt’ [-Wmissing-prototypes]
> arch/x86/kernel/irqinit.c:79:13: warning: no previous prototype for ‘init_IRQ’ [-Wmissing-prototypes]
> arch/x86/kernel/quirks.c:672:13: warning: no previous prototype for ‘early_platform_quirks’ [-Wmissing-prototypes]
> arch/x86/kernel/tsc.c:1499:15: warning: no previous prototype for ‘calibrate_delay_is_known’ [-Wmissing-prototypes]
> arch/x86/kernel/process.c:653:13: warning: no previous prototype for ‘arch_post_acpi_subsys_init’ [-Wmissing-prototypes]
> arch/x86/kernel/process.c:717:15: warning: no previous prototype for ‘arch_randomize_brk’ [-Wmissing-prototypes]
> arch/x86/kernel/process.c:784:6: warning: no previous prototype for ‘do_arch_prctl_common’ [-Wmissing-prototypes]
> arch/x86/kernel/reboot.c:869:6: warning: no previous prototype for ‘nmi_panic_self_stop’ [-Wmissing-prototypes]
> arch/x86/kernel/smp.c:176:27: warning: no previous prototype for ‘smp_reboot_interrupt’ [-Wmissing-prototypes]
> arch/x86/kernel/smp.c:260:28: warning: no previous prototype for ‘smp_reschedule_interrupt’ [-Wmissing-prototypes]
> arch/x86/kernel/smp.c:281:28: warning: no previous prototype for ‘smp_call_function_interrupt’ [-Wmissing-prototypes]
> arch/x86/kernel/smp.c:291:28: warning: no previous prototype for ‘smp_call_function_single_interrupt’ [-Wmissing-prototypes]
> arch/x86/kernel/ftrace.c:840:6: warning: no previous prototype for ‘arch_ftrace_update_trampoline’ [-Wmissing-prototypes]
> arch/x86/kernel/ftrace.c:934:7: warning: no previous prototype for ‘arch_ftrace_trampoline_func’ [-Wmissing-prototypes]
> arch/x86/kernel/ftrace.c:946:6: warning: no previous prototype for ‘arch_ftrace_trampoline_free’ [-Wmissing-prototypes]
> arch/x86/kernel/crash.c:114:6: warning: no previous prototype for ‘crash_smp_send_stop’ [-Wmissing-prototypes]
> arch/x86/kernel/crash.c:351:5: warning: no previous prototype for ‘crash_setup_memmap_entries’ [-Wmissing-prototypes]
> arch/x86/kernel/crash.c:424:5: warning: no previous prototype for ‘crash_load_segments’ [-Wmissing-prototypes]
> arch/x86/kernel/machine_kexec_64.c:372:7: warning: no previous prototype for ‘arch_kexec_kernel_image_load’ [-Wmissing-prototypes]
> arch/x86/kernel/paravirt-spinlocks.c:12:16: warning: no previous prototype for ‘__native_queued_spin_unlock’ [-Wmissing-prototypes]
> arch/x86/kernel/paravirt-spinlocks.c:18:6: warning: no previous prototype for ‘pv_is_native_spin_unlock’ [-Wmissing-prototypes]
> arch/x86/kernel/paravirt-spinlocks.c:24:16: warning: no previous prototype for ‘__native_vcpu_is_preempted’ [-Wmissing-prototypes]
> arch/x86/kernel/paravirt-spinlocks.c:30:6: warning: no previous prototype for ‘pv_is_native_vcpu_is_preempted’ [-Wmissing-prototypes]
> arch/x86/kernel/kvm.c:258:1: warning: no previous prototype for ‘do_async_page_fault’ [-Wmissing-prototypes]
> arch/x86/kernel/jailhouse.c:200:6: warning: no previous prototype for ‘jailhouse_paravirt’ [-Wmissing-prototypes]
> arch/x86/kernel/check.c:91:13: warning: no previous prototype for ‘setup_bios_corruption_check’ [-Wmissing-prototypes]
> arch/x86/kernel/check.c:139:6: warning: no previous prototype for ‘check_for_bios_corruption’ [-Wmissing-prototypes]
> arch/x86/kernel/devicetree.c:32:13: warning: no previous prototype for ‘early_init_dt_scan_chosen_arch’ [-Wmissing-prototypes]
> arch/x86/kernel/devicetree.c:42:13: warning: no previous prototype for ‘add_dtb’ [-Wmissing-prototypes]
> arch/x86/kernel/devicetree.c:108:6: warning: no previous prototype for ‘x86_of_pci_init’ [-Wmissing-prototypes]
> arch/x86/kernel/devicetree.c:314:13: warning: no previous prototype for ‘x86_dtb_init’ [-Wmissing-prototypes]
> arch/x86/kernel/tracepoint.c:16:5: warning: no previous prototype for ‘trace_pagefault_reg’ [-Wmissing-prototypes]
> arch/x86/kernel/tracepoint.c:22:6: warning: no previous prototype for ‘trace_pagefault_unreg’ [-Wmissing-prototypes]
> arch/x86/kernel/head64.c:113:22: warning: no previous prototype for ‘__startup_64’ [-Wmissing-prototypes]
> arch/x86/kernel/head64.c:262:15: warning: no previous prototype for ‘__startup_secondary_64’ [-Wmissing-prototypes]
> arch/x86/kernel/head64.c:350:12: warning: no previous prototype for ‘early_make_pgtable’ [-Wmissing-prototypes]
> 
> Signed-off-by: Yi Wang <wang.yi59@zte.com.cn>
> ---
>  arch/x86/include/asm/crash.h       | 1 +
>  arch/x86/include/asm/efi.h         | 2 --
>  arch/x86/include/asm/irq.h         | 7 +++++++
>  arch/x86/include/asm/irq_work.h    | 1 +
>  arch/x86/include/asm/kvm_para.h    | 1 +
>  arch/x86/include/asm/paravirt.h    | 5 +++++
>  arch/x86/include/asm/reboot.h      | 1 +
>  arch/x86/include/asm/setup.h       | 5 +++++
>  arch/x86/include/asm/sighandling.h | 5 +++++
>  arch/x86/include/asm/smp.h         | 6 ++++++
>  arch/x86/include/asm/traps.h       | 4 ++++
>  arch/x86/include/asm/tsc.h         | 1 +
>  arch/x86/kernel/check.c            | 3 ++-
>  arch/x86/kernel/crash.c            | 1 +
>  arch/x86/kernel/devicetree.c       | 1 +
>  arch/x86/kernel/jailhouse.c        | 1 +
>  arch/x86/kernel/process.c          | 3 +++
>  arch/x86/kernel/quirks.c           | 1 +
>  arch/x86/kernel/tracepoint.c       | 1 +
>  include/linux/efi.h                | 2 ++
>  include/linux/ftrace.h             | 3 +++
>  include/linux/kexec.h              | 1 +
>  include/linux/of_fdt.h             | 1 +
>  include/linux/ptrace.h             | 1 +
>  24 files changed, 55 insertions(+), 3 deletions(-)

Breaks 32-bit compilation:

./arch/x86/include/asm/setup.h: Assembler messages:
./arch/x86/include/asm/setup.h:30: Error: no such instruction: `unsigned long __startup_64(unsigned long physaddr,struct boot_params *bp)'

I'll skip the setup.h bits - let's hope that's the only bug.

Thanks,

	Ingo

-- 
You received this message because you are subscribed to the Google Groups "Jailhouse" group.
To unsubscribe from this group and stop receiving emails from it, send an email to jailhouse-dev+unsubscribe@googlegroups.com.
For more options, visit https://groups.google.com/d/optout.

^ permalink raw reply	[flat|nested] 16+ messages in thread
* Re: [PATCH] x86: fix -Wmissing-prototypes warning
  2018-11-22  2:04 ` Yi Wang
  (?)
  (?)
@ 2018-11-22  8:48 ` Ingo Molnar
  -1 siblings, 0 replies; 16+ messages in thread
From: Ingo Molnar @ 2018-11-22  8:48 UTC (permalink / raw)
  To: Yi Wang
  Cc: linux-efi, anton, kvm, rkrcmar, peterz, jan.kiszka,
	virtualization, pravin.shedge4linux, namit, hpa, akataria,
	prarit, robh, zhong.weidong, bhe, devicetree, x86,
	pasha.tatashin, takahiro.akashi, andy.shevchenko, mingo,
	linux-pci, dyoung, m.mizuma, jailhouse-dev, jroedel, keescook,
	konrad.wilk, rostedt, rajvi.jingar, tony.luck, bp, luto, oleg,
	bhelgaas, tglx, frank.rowand, jgross, douly.fnst, thomas.le


* Yi Wang <wang.yi59@zte.com.cn> wrote:

> We may get -Wmissing-prototypes warnings when building
> kernel with W=1, it's better to fix them as global function
> signature can be changed and caller who use the old unchanged
> prototypes will be hosed.
> 
> This patch fixes most of -Wmissing-prototypes warnings which
> are in the root directory of arch/x86/kernel, not including
> the subdirectories.
> 
> These are the warnings fixed in this patch:
> arch/x86/kernel/signal.c:865:17: warning: no previous prototype for ‘sys32_x32_rt_sigreturn’ [-Wmissing-prototypes]
> arch/x86/kernel/signal_compat.c:164:6: warning: no previous prototype for ‘sigaction_compat_abi’ [-Wmissing-prototypes]
> arch/x86/kernel/traps.c:625:46: warning: no previous prototype for ‘sync_regs’ [-Wmissing-prototypes]
> arch/x86/kernel/traps.c:640:24: warning: no previous prototype for ‘fixup_bad_iret’ [-Wmissing-prototypes]
> arch/x86/kernel/traps.c:929:13: warning: no previous prototype for ‘trap_init’ [-Wmissing-prototypes]
> arch/x86/kernel/irq.c:270:28: warning: no previous prototype for ‘smp_x86_platform_ipi’ [-Wmissing-prototypes]
> arch/x86/kernel/irq.c:301:16: warning: no previous prototype for ‘smp_kvm_posted_intr_ipi’ [-Wmissing-prototypes]
> arch/x86/kernel/irq.c:314:16: warning: no previous prototype for ‘smp_kvm_posted_intr_wakeup_ipi’ [-Wmissing-prototypes]
> arch/x86/kernel/irq.c:328:16: warning: no previous prototype for ‘smp_kvm_posted_intr_nested_ipi’ [-Wmissing-prototypes]
> arch/x86/kernel/irq_work.c:16:28: warning: no previous prototype for ‘smp_irq_work_interrupt’ [-Wmissing-prototypes]
> arch/x86/kernel/irqinit.c:79:13: warning: no previous prototype for ‘init_IRQ’ [-Wmissing-prototypes]
> arch/x86/kernel/quirks.c:672:13: warning: no previous prototype for ‘early_platform_quirks’ [-Wmissing-prototypes]
> arch/x86/kernel/tsc.c:1499:15: warning: no previous prototype for ‘calibrate_delay_is_known’ [-Wmissing-prototypes]
> arch/x86/kernel/process.c:653:13: warning: no previous prototype for ‘arch_post_acpi_subsys_init’ [-Wmissing-prototypes]
> arch/x86/kernel/process.c:717:15: warning: no previous prototype for ‘arch_randomize_brk’ [-Wmissing-prototypes]
> arch/x86/kernel/process.c:784:6: warning: no previous prototype for ‘do_arch_prctl_common’ [-Wmissing-prototypes]
> arch/x86/kernel/reboot.c:869:6: warning: no previous prototype for ‘nmi_panic_self_stop’ [-Wmissing-prototypes]
> arch/x86/kernel/smp.c:176:27: warning: no previous prototype for ‘smp_reboot_interrupt’ [-Wmissing-prototypes]
> arch/x86/kernel/smp.c:260:28: warning: no previous prototype for ‘smp_reschedule_interrupt’ [-Wmissing-prototypes]
> arch/x86/kernel/smp.c:281:28: warning: no previous prototype for ‘smp_call_function_interrupt’ [-Wmissing-prototypes]
> arch/x86/kernel/smp.c:291:28: warning: no previous prototype for ‘smp_call_function_single_interrupt’ [-Wmissing-prototypes]
> arch/x86/kernel/ftrace.c:840:6: warning: no previous prototype for ‘arch_ftrace_update_trampoline’ [-Wmissing-prototypes]
> arch/x86/kernel/ftrace.c:934:7: warning: no previous prototype for ‘arch_ftrace_trampoline_func’ [-Wmissing-prototypes]
> arch/x86/kernel/ftrace.c:946:6: warning: no previous prototype for ‘arch_ftrace_trampoline_free’ [-Wmissing-prototypes]
> arch/x86/kernel/crash.c:114:6: warning: no previous prototype for ‘crash_smp_send_stop’ [-Wmissing-prototypes]
> arch/x86/kernel/crash.c:351:5: warning: no previous prototype for ‘crash_setup_memmap_entries’ [-Wmissing-prototypes]
> arch/x86/kernel/crash.c:424:5: warning: no previous prototype for ‘crash_load_segments’ [-Wmissing-prototypes]
> arch/x86/kernel/machine_kexec_64.c:372:7: warning: no previous prototype for ‘arch_kexec_kernel_image_load’ [-Wmissing-prototypes]
> arch/x86/kernel/paravirt-spinlocks.c:12:16: warning: no previous prototype for ‘__native_queued_spin_unlock’ [-Wmissing-prototypes]
> arch/x86/kernel/paravirt-spinlocks.c:18:6: warning: no previous prototype for ‘pv_is_native_spin_unlock’ [-Wmissing-prototypes]
> arch/x86/kernel/paravirt-spinlocks.c:24:16: warning: no previous prototype for ‘__native_vcpu_is_preempted’ [-Wmissing-prototypes]
> arch/x86/kernel/paravirt-spinlocks.c:30:6: warning: no previous prototype for ‘pv_is_native_vcpu_is_preempted’ [-Wmissing-prototypes]
> arch/x86/kernel/kvm.c:258:1: warning: no previous prototype for ‘do_async_page_fault’ [-Wmissing-prototypes]
> arch/x86/kernel/jailhouse.c:200:6: warning: no previous prototype for ‘jailhouse_paravirt’ [-Wmissing-prototypes]
> arch/x86/kernel/check.c:91:13: warning: no previous prototype for ‘setup_bios_corruption_check’ [-Wmissing-prototypes]
> arch/x86/kernel/check.c:139:6: warning: no previous prototype for ‘check_for_bios_corruption’ [-Wmissing-prototypes]
> arch/x86/kernel/devicetree.c:32:13: warning: no previous prototype for ‘early_init_dt_scan_chosen_arch’ [-Wmissing-prototypes]
> arch/x86/kernel/devicetree.c:42:13: warning: no previous prototype for ‘add_dtb’ [-Wmissing-prototypes]
> arch/x86/kernel/devicetree.c:108:6: warning: no previous prototype for ‘x86_of_pci_init’ [-Wmissing-prototypes]
> arch/x86/kernel/devicetree.c:314:13: warning: no previous prototype for ‘x86_dtb_init’ [-Wmissing-prototypes]
> arch/x86/kernel/tracepoint.c:16:5: warning: no previous prototype for ‘trace_pagefault_reg’ [-Wmissing-prototypes]
> arch/x86/kernel/tracepoint.c:22:6: warning: no previous prototype for ‘trace_pagefault_unreg’ [-Wmissing-prototypes]
> arch/x86/kernel/head64.c:113:22: warning: no previous prototype for ‘__startup_64’ [-Wmissing-prototypes]
> arch/x86/kernel/head64.c:262:15: warning: no previous prototype for ‘__startup_secondary_64’ [-Wmissing-prototypes]
> arch/x86/kernel/head64.c:350:12: warning: no previous prototype for ‘early_make_pgtable’ [-Wmissing-prototypes]
> 
> Signed-off-by: Yi Wang <wang.yi59@zte.com.cn>
> ---
>  arch/x86/include/asm/crash.h       | 1 +
>  arch/x86/include/asm/efi.h         | 2 --
>  arch/x86/include/asm/irq.h         | 7 +++++++
>  arch/x86/include/asm/irq_work.h    | 1 +
>  arch/x86/include/asm/kvm_para.h    | 1 +
>  arch/x86/include/asm/paravirt.h    | 5 +++++
>  arch/x86/include/asm/reboot.h      | 1 +
>  arch/x86/include/asm/setup.h       | 5 +++++
>  arch/x86/include/asm/sighandling.h | 5 +++++
>  arch/x86/include/asm/smp.h         | 6 ++++++
>  arch/x86/include/asm/traps.h       | 4 ++++
>  arch/x86/include/asm/tsc.h         | 1 +
>  arch/x86/kernel/check.c            | 3 ++-
>  arch/x86/kernel/crash.c            | 1 +
>  arch/x86/kernel/devicetree.c       | 1 +
>  arch/x86/kernel/jailhouse.c        | 1 +
>  arch/x86/kernel/process.c          | 3 +++
>  arch/x86/kernel/quirks.c           | 1 +
>  arch/x86/kernel/tracepoint.c       | 1 +
>  include/linux/efi.h                | 2 ++
>  include/linux/ftrace.h             | 3 +++
>  include/linux/kexec.h              | 1 +
>  include/linux/of_fdt.h             | 1 +
>  include/linux/ptrace.h             | 1 +
>  24 files changed, 55 insertions(+), 3 deletions(-)

Breaks 32-bit compilation:

./arch/x86/include/asm/setup.h: Assembler messages:
./arch/x86/include/asm/setup.h:30: Error: no such instruction: `unsigned long __startup_64(unsigned long physaddr,struct boot_params *bp)'

I'll skip the setup.h bits - let's hope that's the only bug.

Thanks,

	Ingo
_______________________________________________
Virtualization mailing list
Virtualization@lists.linux-foundation.org
https://lists.linuxfoundation.org/mailman/listinfo/virtualization

^ permalink raw reply	[flat|nested] 16+ messages in thread
* Re: [PATCH] x86: fix -Wmissing-prototypes warning
@ 2018-11-22  8:48   ` Ingo Molnar
  0 siblings, 0 replies; 16+ messages in thread
From: Ingo Molnar @ 2018-11-22  8:48 UTC (permalink / raw)
  To: Yi Wang
  Cc: linux-efi, anton, kvm, rkrcmar, peterz, jan.kiszka,
	virtualization, pravin.shedge4linux, namit, hpa, frowand.list,
	akataria, prarit, robh, zhong.weidong, bhe, devicetree, x86,
	pasha.tatashin, takahiro.akashi, andy.shevchenko, mingo,
	linux-pci, dyoung, m.mizuma, jailhouse-dev, jroedel, keescook,
	konrad.wilk, rostedt, rajvi.jingar, tony.luck, bp, luto, oleg,
	bhelgaas, tglx, frank.rowand, jgross, douly.fnst,
	thomas.lendacky, zhe.he, ard.biesheuvel, kexec, linux-kernel,
	robh+dt, ebiederm, ccross, pbonzini, akpm, up2wing, dwmw,
	ivan.gorinov


* Yi Wang <wang.yi59@zte.com.cn> wrote:

> We may get -Wmissing-prototypes warnings when building
> kernel with W=1, it's better to fix them as global function
> signature can be changed and caller who use the old unchanged
> prototypes will be hosed.
> 
> This patch fixes most of -Wmissing-prototypes warnings which
> are in the root directory of arch/x86/kernel, not including
> the subdirectories.
> 
> These are the warnings fixed in this patch:
> arch/x86/kernel/signal.c:865:17: warning: no previous prototype for ‘sys32_x32_rt_sigreturn’ [-Wmissing-prototypes]
> arch/x86/kernel/signal_compat.c:164:6: warning: no previous prototype for ‘sigaction_compat_abi’ [-Wmissing-prototypes]
> arch/x86/kernel/traps.c:625:46: warning: no previous prototype for ‘sync_regs’ [-Wmissing-prototypes]
> arch/x86/kernel/traps.c:640:24: warning: no previous prototype for ‘fixup_bad_iret’ [-Wmissing-prototypes]
> arch/x86/kernel/traps.c:929:13: warning: no previous prototype for ‘trap_init’ [-Wmissing-prototypes]
> arch/x86/kernel/irq.c:270:28: warning: no previous prototype for ‘smp_x86_platform_ipi’ [-Wmissing-prototypes]
> arch/x86/kernel/irq.c:301:16: warning: no previous prototype for ‘smp_kvm_posted_intr_ipi’ [-Wmissing-prototypes]
> arch/x86/kernel/irq.c:314:16: warning: no previous prototype for ‘smp_kvm_posted_intr_wakeup_ipi’ [-Wmissing-prototypes]
> arch/x86/kernel/irq.c:328:16: warning: no previous prototype for ‘smp_kvm_posted_intr_nested_ipi’ [-Wmissing-prototypes]
> arch/x86/kernel/irq_work.c:16:28: warning: no previous prototype for ‘smp_irq_work_interrupt’ [-Wmissing-prototypes]
> arch/x86/kernel/irqinit.c:79:13: warning: no previous prototype for ‘init_IRQ’ [-Wmissing-prototypes]
> arch/x86/kernel/quirks.c:672:13: warning: no previous prototype for ‘early_platform_quirks’ [-Wmissing-prototypes]
> arch/x86/kernel/tsc.c:1499:15: warning: no previous prototype for ‘calibrate_delay_is_known’ [-Wmissing-prototypes]
> arch/x86/kernel/process.c:653:13: warning: no previous prototype for ‘arch_post_acpi_subsys_init’ [-Wmissing-prototypes]
> arch/x86/kernel/process.c:717:15: warning: no previous prototype for ‘arch_randomize_brk’ [-Wmissing-prototypes]
> arch/x86/kernel/process.c:784:6: warning: no previous prototype for ‘do_arch_prctl_common’ [-Wmissing-prototypes]
> arch/x86/kernel/reboot.c:869:6: warning: no previous prototype for ‘nmi_panic_self_stop’ [-Wmissing-prototypes]
> arch/x86/kernel/smp.c:176:27: warning: no previous prototype for ‘smp_reboot_interrupt’ [-Wmissing-prototypes]
> arch/x86/kernel/smp.c:260:28: warning: no previous prototype for ‘smp_reschedule_interrupt’ [-Wmissing-prototypes]
> arch/x86/kernel/smp.c:281:28: warning: no previous prototype for ‘smp_call_function_interrupt’ [-Wmissing-prototypes]
> arch/x86/kernel/smp.c:291:28: warning: no previous prototype for ‘smp_call_function_single_interrupt’ [-Wmissing-prototypes]
> arch/x86/kernel/ftrace.c:840:6: warning: no previous prototype for ‘arch_ftrace_update_trampoline’ [-Wmissing-prototypes]
> arch/x86/kernel/ftrace.c:934:7: warning: no previous prototype for ‘arch_ftrace_trampoline_func’ [-Wmissing-prototypes]
> arch/x86/kernel/ftrace.c:946:6: warning: no previous prototype for ‘arch_ftrace_trampoline_free’ [-Wmissing-prototypes]
> arch/x86/kernel/crash.c:114:6: warning: no previous prototype for ‘crash_smp_send_stop’ [-Wmissing-prototypes]
> arch/x86/kernel/crash.c:351:5: warning: no previous prototype for ‘crash_setup_memmap_entries’ [-Wmissing-prototypes]
> arch/x86/kernel/crash.c:424:5: warning: no previous prototype for ‘crash_load_segments’ [-Wmissing-prototypes]
> arch/x86/kernel/machine_kexec_64.c:372:7: warning: no previous prototype for ‘arch_kexec_kernel_image_load’ [-Wmissing-prototypes]
> arch/x86/kernel/paravirt-spinlocks.c:12:16: warning: no previous prototype for ‘__native_queued_spin_unlock’ [-Wmissing-prototypes]
> arch/x86/kernel/paravirt-spinlocks.c:18:6: warning: no previous prototype for ‘pv_is_native_spin_unlock’ [-Wmissing-prototypes]
> arch/x86/kernel/paravirt-spinlocks.c:24:16: warning: no previous prototype for ‘__native_vcpu_is_preempted’ [-Wmissing-prototypes]
> arch/x86/kernel/paravirt-spinlocks.c:30:6: warning: no previous prototype for ‘pv_is_native_vcpu_is_preempted’ [-Wmissing-prototypes]
> arch/x86/kernel/kvm.c:258:1: warning: no previous prototype for ‘do_async_page_fault’ [-Wmissing-prototypes]
> arch/x86/kernel/jailhouse.c:200:6: warning: no previous prototype for ‘jailhouse_paravirt’ [-Wmissing-prototypes]
> arch/x86/kernel/check.c:91:13: warning: no previous prototype for ‘setup_bios_corruption_check’ [-Wmissing-prototypes]
> arch/x86/kernel/check.c:139:6: warning: no previous prototype for ‘check_for_bios_corruption’ [-Wmissing-prototypes]
> arch/x86/kernel/devicetree.c:32:13: warning: no previous prototype for ‘early_init_dt_scan_chosen_arch’ [-Wmissing-prototypes]
> arch/x86/kernel/devicetree.c:42:13: warning: no previous prototype for ‘add_dtb’ [-Wmissing-prototypes]
> arch/x86/kernel/devicetree.c:108:6: warning: no previous prototype for ‘x86_of_pci_init’ [-Wmissing-prototypes]
> arch/x86/kernel/devicetree.c:314:13: warning: no previous prototype for ‘x86_dtb_init’ [-Wmissing-prototypes]
> arch/x86/kernel/tracepoint.c:16:5: warning: no previous prototype for ‘trace_pagefault_reg’ [-Wmissing-prototypes]
> arch/x86/kernel/tracepoint.c:22:6: warning: no previous prototype for ‘trace_pagefault_unreg’ [-Wmissing-prototypes]
> arch/x86/kernel/head64.c:113:22: warning: no previous prototype for ‘__startup_64’ [-Wmissing-prototypes]
> arch/x86/kernel/head64.c:262:15: warning: no previous prototype for ‘__startup_secondary_64’ [-Wmissing-prototypes]
> arch/x86/kernel/head64.c:350:12: warning: no previous prototype for ‘early_make_pgtable’ [-Wmissing-prototypes]
> 
> Signed-off-by: Yi Wang <wang.yi59@zte.com.cn>
> ---
>  arch/x86/include/asm/crash.h       | 1 +
>  arch/x86/include/asm/efi.h         | 2 --
>  arch/x86/include/asm/irq.h         | 7 +++++++
>  arch/x86/include/asm/irq_work.h    | 1 +
>  arch/x86/include/asm/kvm_para.h    | 1 +
>  arch/x86/include/asm/paravirt.h    | 5 +++++
>  arch/x86/include/asm/reboot.h      | 1 +
>  arch/x86/include/asm/setup.h       | 5 +++++
>  arch/x86/include/asm/sighandling.h | 5 +++++
>  arch/x86/include/asm/smp.h         | 6 ++++++
>  arch/x86/include/asm/traps.h       | 4 ++++
>  arch/x86/include/asm/tsc.h         | 1 +
>  arch/x86/kernel/check.c            | 3 ++-
>  arch/x86/kernel/crash.c            | 1 +
>  arch/x86/kernel/devicetree.c       | 1 +
>  arch/x86/kernel/jailhouse.c        | 1 +
>  arch/x86/kernel/process.c          | 3 +++
>  arch/x86/kernel/quirks.c           | 1 +
>  arch/x86/kernel/tracepoint.c       | 1 +
>  include/linux/efi.h                | 2 ++
>  include/linux/ftrace.h             | 3 +++
>  include/linux/kexec.h              | 1 +
>  include/linux/of_fdt.h             | 1 +
>  include/linux/ptrace.h             | 1 +
>  24 files changed, 55 insertions(+), 3 deletions(-)

Breaks 32-bit compilation:

./arch/x86/include/asm/setup.h: Assembler messages:
./arch/x86/include/asm/setup.h:30: Error: no such instruction: `unsigned long __startup_64(unsigned long physaddr,struct boot_params *bp)'

I'll skip the setup.h bits - let's hope that's the only bug.

Thanks,

	Ingo

_______________________________________________
kexec mailing list
kexec@lists.infradead.org
http://lists.infradead.org/mailman/listinfo/kexec

^ permalink raw reply	[flat|nested] 16+ messages in thread
* [tip:x86/cleanups] x86/headers: Fix -Wmissing-prototypes warning
  2018-11-22  2:04 ` Yi Wang
                   ` (3 preceding siblings ...)
  (?)
@ 2018-11-22 10:15 ` tip-bot for Yi Wang
  2018-11-23  7:03   ` Ingo Molnar
  -1 siblings, 1 reply; 16+ messages in thread
From: tip-bot for Yi Wang @ 2018-11-22 10:15 UTC (permalink / raw)
  To: linux-tip-commits
  Cc: peterz, hpa, linux-kernel, tglx, torvalds, mingo, wang.yi59

Commit-ID:  d37904c5b14317a2c76efec6b9e4dbcaa17380e5
Gitweb:     https://git.kernel.org/tip/d37904c5b14317a2c76efec6b9e4dbcaa17380e5
Author:     Yi Wang <wang.yi59@zte.com.cn>
AuthorDate: Thu, 22 Nov 2018 10:04:09 +0800
Committer:  Ingo Molnar <mingo@kernel.org>
CommitDate: Thu, 22 Nov 2018 09:52:28 +0100

x86/headers: Fix -Wmissing-prototypes warning

When building the kernel with W=1 we get a lot of -Wmissing-prototypes
warnings, which are trivial in nature and easy to fix - and which may
mask some real future bugs if the prototypes get out of sync with
the function definition.

This patch fixes most of -Wmissing-prototypes warnings which
are in the root directory of arch/x86/kernel, not including
the subdirectories.

These are the warnings fixed in this patch:

  arch/x86/kernel/signal.c:865:17: warning: no previous prototype for ‘sys32_x32_rt_sigreturn’ [-Wmissing-prototypes]
  arch/x86/kernel/signal_compat.c:164:6: warning: no previous prototype for ‘sigaction_compat_abi’ [-Wmissing-prototypes]
  arch/x86/kernel/traps.c:625:46: warning: no previous prototype for ‘sync_regs’ [-Wmissing-prototypes]
  arch/x86/kernel/traps.c:640:24: warning: no previous prototype for ‘fixup_bad_iret’ [-Wmissing-prototypes]
  arch/x86/kernel/traps.c:929:13: warning: no previous prototype for ‘trap_init’ [-Wmissing-prototypes]
  arch/x86/kernel/irq.c:270:28: warning: no previous prototype for ‘smp_x86_platform_ipi’ [-Wmissing-prototypes]
  arch/x86/kernel/irq.c:301:16: warning: no previous prototype for ‘smp_kvm_posted_intr_ipi’ [-Wmissing-prototypes]
  arch/x86/kernel/irq.c:314:16: warning: no previous prototype for ‘smp_kvm_posted_intr_wakeup_ipi’ [-Wmissing-prototypes]
  arch/x86/kernel/irq.c:328:16: warning: no previous prototype for ‘smp_kvm_posted_intr_nested_ipi’ [-Wmissing-prototypes]
  arch/x86/kernel/irq_work.c:16:28: warning: no previous prototype for ‘smp_irq_work_interrupt’ [-Wmissing-prototypes]
  arch/x86/kernel/irqinit.c:79:13: warning: no previous prototype for ‘init_IRQ’ [-Wmissing-prototypes]
  arch/x86/kernel/quirks.c:672:13: warning: no previous prototype for ‘early_platform_quirks’ [-Wmissing-prototypes]
  arch/x86/kernel/tsc.c:1499:15: warning: no previous prototype for ‘calibrate_delay_is_known’ [-Wmissing-prototypes]
  arch/x86/kernel/process.c:653:13: warning: no previous prototype for ‘arch_post_acpi_subsys_init’ [-Wmissing-prototypes]
  arch/x86/kernel/process.c:717:15: warning: no previous prototype for ‘arch_randomize_brk’ [-Wmissing-prototypes]
  arch/x86/kernel/process.c:784:6: warning: no previous prototype for ‘do_arch_prctl_common’ [-Wmissing-prototypes]
  arch/x86/kernel/reboot.c:869:6: warning: no previous prototype for ‘nmi_panic_self_stop’ [-Wmissing-prototypes]
  arch/x86/kernel/smp.c:176:27: warning: no previous prototype for ‘smp_reboot_interrupt’ [-Wmissing-prototypes]
  arch/x86/kernel/smp.c:260:28: warning: no previous prototype for ‘smp_reschedule_interrupt’ [-Wmissing-prototypes]
  arch/x86/kernel/smp.c:281:28: warning: no previous prototype for ‘smp_call_function_interrupt’ [-Wmissing-prototypes]
  arch/x86/kernel/smp.c:291:28: warning: no previous prototype for ‘smp_call_function_single_interrupt’ [-Wmissing-prototypes]
  arch/x86/kernel/ftrace.c:840:6: warning: no previous prototype for ‘arch_ftrace_update_trampoline’ [-Wmissing-prototypes]
  arch/x86/kernel/ftrace.c:934:7: warning: no previous prototype for ‘arch_ftrace_trampoline_func’ [-Wmissing-prototypes]
  arch/x86/kernel/ftrace.c:946:6: warning: no previous prototype for ‘arch_ftrace_trampoline_free’ [-Wmissing-prototypes]
  arch/x86/kernel/crash.c:114:6: warning: no previous prototype for ‘crash_smp_send_stop’ [-Wmissing-prototypes]
  arch/x86/kernel/crash.c:351:5: warning: no previous prototype for ‘crash_setup_memmap_entries’ [-Wmissing-prototypes]
  arch/x86/kernel/crash.c:424:5: warning: no previous prototype for ‘crash_load_segments’ [-Wmissing-prototypes]
  arch/x86/kernel/machine_kexec_64.c:372:7: warning: no previous prototype for ‘arch_kexec_kernel_image_load’ [-Wmissing-prototypes]
  arch/x86/kernel/paravirt-spinlocks.c:12:16: warning: no previous prototype for ‘__native_queued_spin_unlock’ [-Wmissing-prototypes]
  arch/x86/kernel/paravirt-spinlocks.c:18:6: warning: no previous prototype for ‘pv_is_native_spin_unlock’ [-Wmissing-prototypes]
  arch/x86/kernel/paravirt-spinlocks.c:24:16: warning: no previous prototype for ‘__native_vcpu_is_preempted’ [-Wmissing-prototypes]
  arch/x86/kernel/paravirt-spinlocks.c:30:6: warning: no previous prototype for ‘pv_is_native_vcpu_is_preempted’ [-Wmissing-prototypes]
  arch/x86/kernel/kvm.c:258:1: warning: no previous prototype for ‘do_async_page_fault’ [-Wmissing-prototypes]
  arch/x86/kernel/jailhouse.c:200:6: warning: no previous prototype for ‘jailhouse_paravirt’ [-Wmissing-prototypes]
  arch/x86/kernel/check.c:91:13: warning: no previous prototype for ‘setup_bios_corruption_check’ [-Wmissing-prototypes]
  arch/x86/kernel/check.c:139:6: warning: no previous prototype for ‘check_for_bios_corruption’ [-Wmissing-prototypes]
  arch/x86/kernel/devicetree.c:32:13: warning: no previous prototype for ‘early_init_dt_scan_chosen_arch’ [-Wmissing-prototypes]
  arch/x86/kernel/devicetree.c:42:13: warning: no previous prototype for ‘add_dtb’ [-Wmissing-prototypes]
  arch/x86/kernel/devicetree.c:108:6: warning: no previous prototype for ‘x86_of_pci_init’ [-Wmissing-prototypes]
  arch/x86/kernel/devicetree.c:314:13: warning: no previous prototype for ‘x86_dtb_init’ [-Wmissing-prototypes]
  arch/x86/kernel/tracepoint.c:16:5: warning: no previous prototype for ‘trace_pagefault_reg’ [-Wmissing-prototypes]
  arch/x86/kernel/tracepoint.c:22:6: warning: no previous prototype for ‘trace_pagefault_unreg’ [-Wmissing-prototypes]
  arch/x86/kernel/head64.c:113:22: warning: no previous prototype for ‘__startup_64’ [-Wmissing-prototypes]
  arch/x86/kernel/head64.c:262:15: warning: no previous prototype for ‘__startup_secondary_64’ [-Wmissing-prototypes]
  arch/x86/kernel/head64.c:350:12: warning: no previous prototype for ‘early_make_pgtable’ [-Wmissing-prototypes]

[ mingo: rewrote the changelog, fixed build errors. ]

Signed-off-by: Yi Wang <wang.yi59@zte.com.cn>
Cc: Linus Torvalds <torvalds@linux-foundation.org>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Thomas Gleixner <tglx@linutronix.de>
Cc: akataria@vmware.com
Cc: akpm@linux-foundation.org
Cc: andy.shevchenko@gmail.com
Cc: anton@enomsg.org
Cc: ard.biesheuvel@linaro.org
Cc: bhe@redhat.com
Cc: bhelgaas@google.com
Cc: bp@alien8.de
Cc: ccross@android.com
Cc: devicetree@vger.kernel.org
Cc: douly.fnst@cn.fujitsu.com
Cc: dwmw@amazon.co.uk
Cc: dyoung@redhat.com
Cc: ebiederm@xmission.com
Cc: frank.rowand@sony.com
Cc: frowand.list@gmail.com
Cc: ivan.gorinov@intel.com
Cc: jailhouse-dev@googlegroups.com
Cc: jan.kiszka@siemens.com
Cc: jgross@suse.com
Cc: jroedel@suse.de
Cc: keescook@chromium.org
Cc: kexec@lists.infradead.org
Cc: konrad.wilk@oracle.com
Cc: kvm@vger.kernel.org
Cc: linux-efi@vger.kernel.org
Cc: linux-pci@vger.kernel.org
Cc: luto@kernel.org
Cc: m.mizuma@jp.fujitsu.com
Cc: namit@vmware.com
Cc: oleg@redhat.com
Cc: pasha.tatashin@oracle.com
Cc: pbonzini@redhat.com
Cc: prarit@redhat.com
Cc: pravin.shedge4linux@gmail.com
Cc: rajvi.jingar@intel.com
Cc: rkrcmar@redhat.com
Cc: robh+dt@kernel.org
Cc: robh@kernel.org
Cc: rostedt@goodmis.org
Cc: takahiro.akashi@linaro.org
Cc: thomas.lendacky@amd.com
Cc: tony.luck@intel.com
Cc: up2wing@gmail.com
Cc: virtualization@lists.linux-foundation.org
Cc: zhe.he@windriver.com
Cc: zhong.weidong@zte.com.cn
Link: http://lkml.kernel.org/r/1542852249-19820-1-git-send-email-wang.yi59@zte.com.cn
Signed-off-by: Ingo Molnar <mingo@kernel.org>
---
 arch/x86/include/asm/crash.h       | 1 +
 arch/x86/include/asm/efi.h         | 2 --
 arch/x86/include/asm/irq.h         | 7 +++++++
 arch/x86/include/asm/irq_work.h    | 1 +
 arch/x86/include/asm/kvm_para.h    | 1 +
 arch/x86/include/asm/paravirt.h    | 5 +++++
 arch/x86/include/asm/reboot.h      | 1 +
 arch/x86/include/asm/sighandling.h | 5 +++++
 arch/x86/include/asm/smp.h         | 6 ++++++
 arch/x86/include/asm/traps.h       | 4 ++++
 arch/x86/include/asm/tsc.h         | 1 +
 arch/x86/kernel/check.c            | 3 ++-
 arch/x86/kernel/crash.c            | 1 +
 arch/x86/kernel/devicetree.c       | 1 +
 arch/x86/kernel/jailhouse.c        | 1 +
 arch/x86/kernel/process.c          | 3 +++
 arch/x86/kernel/quirks.c           | 1 +
 arch/x86/kernel/tracepoint.c       | 1 +
 include/linux/efi.h                | 2 ++
 include/linux/ftrace.h             | 3 +++
 include/linux/kexec.h              | 1 +
 include/linux/of_fdt.h             | 1 +
 include/linux/ptrace.h             | 1 +
 23 files changed, 50 insertions(+), 3 deletions(-)

diff --git a/arch/x86/include/asm/crash.h b/arch/x86/include/asm/crash.h
index a7adb2bfbf0b..0acf5ee45a21 100644
--- a/arch/x86/include/asm/crash.h
+++ b/arch/x86/include/asm/crash.h
@@ -6,5 +6,6 @@ int crash_load_segments(struct kimage *image);
 int crash_copy_backup_region(struct kimage *image);
 int crash_setup_memmap_entries(struct kimage *image,
 		struct boot_params *params);
+void crash_smp_send_stop(void);
 
 #endif /* _ASM_X86_CRASH_H */
diff --git a/arch/x86/include/asm/efi.h b/arch/x86/include/asm/efi.h
index eea40d52ca78..063f1d4d698e 100644
--- a/arch/x86/include/asm/efi.h
+++ b/arch/x86/include/asm/efi.h
@@ -173,8 +173,6 @@ static inline bool efi_runtime_supported(void)
 extern struct console early_efi_console;
 extern void parse_efi_setup(u64 phys_addr, u32 data_len);
 
-extern void efifb_setup_from_dmi(struct screen_info *si, const char *opt);
-
 #ifdef CONFIG_EFI_MIXED
 extern void efi_thunk_runtime_setup(void);
 extern efi_status_t efi_thunk_set_virtual_address_map(
diff --git a/arch/x86/include/asm/irq.h b/arch/x86/include/asm/irq.h
index 2395bb794c7b..fbb16e6b6c18 100644
--- a/arch/x86/include/asm/irq.h
+++ b/arch/x86/include/asm/irq.h
@@ -30,6 +30,9 @@ extern void fixup_irqs(void);
 
 #ifdef CONFIG_HAVE_KVM
 extern void kvm_set_posted_intr_wakeup_handler(void (*handler)(void));
+extern __visible void smp_kvm_posted_intr_ipi(struct pt_regs *regs);
+extern __visible void smp_kvm_posted_intr_wakeup_ipi(struct pt_regs *regs);
+extern __visible void smp_kvm_posted_intr_nested_ipi(struct pt_regs *regs);
 #endif
 
 extern void (*x86_platform_ipi_callback)(void);
@@ -41,9 +44,13 @@ extern __visible unsigned int do_IRQ(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);
+
+extern __visible void smp_x86_platform_ipi(struct pt_regs *regs);
 #define arch_trigger_cpumask_backtrace arch_trigger_cpumask_backtrace
 #endif
 
diff --git a/arch/x86/include/asm/irq_work.h b/arch/x86/include/asm/irq_work.h
index 800ffce0db29..80b35e3adf03 100644
--- a/arch/x86/include/asm/irq_work.h
+++ b/arch/x86/include/asm/irq_work.h
@@ -10,6 +10,7 @@ static inline bool arch_irq_work_has_interrupt(void)
 	return boot_cpu_has(X86_FEATURE_APIC);
 }
 extern void arch_irq_work_raise(void);
+extern __visible void smp_irq_work_interrupt(struct pt_regs *regs);
 #else
 static inline bool arch_irq_work_has_interrupt(void)
 {
diff --git a/arch/x86/include/asm/kvm_para.h b/arch/x86/include/asm/kvm_para.h
index 4c723632c036..5ed3cf1c3934 100644
--- a/arch/x86/include/asm/kvm_para.h
+++ b/arch/x86/include/asm/kvm_para.h
@@ -92,6 +92,7 @@ void kvm_async_pf_task_wait(u32 token, int interrupt_kernel);
 void kvm_async_pf_task_wake(u32 token);
 u32 kvm_read_and_reset_pf_reason(void);
 extern void kvm_disable_steal_time(void);
+void do_async_page_fault(struct pt_regs *regs, unsigned long error_code);
 
 #ifdef CONFIG_PARAVIRT_SPINLOCKS
 void __init kvm_spinlock_init(void);
diff --git a/arch/x86/include/asm/paravirt.h b/arch/x86/include/asm/paravirt.h
index 4bf42f9e4eea..a97f28d914d5 100644
--- a/arch/x86/include/asm/paravirt.h
+++ b/arch/x86/include/asm/paravirt.h
@@ -26,6 +26,11 @@ struct static_key;
 extern struct static_key paravirt_steal_enabled;
 extern struct static_key paravirt_steal_rq_enabled;
 
+__visible void __native_queued_spin_unlock(struct qspinlock *lock);
+bool pv_is_native_spin_unlock(void);
+__visible bool __native_vcpu_is_preempted(long cpu);
+bool pv_is_native_vcpu_is_preempted(void);
+
 static inline u64 paravirt_steal_clock(int cpu)
 {
 	return PVOP_CALL1(u64, time.steal_clock, cpu);
diff --git a/arch/x86/include/asm/reboot.h b/arch/x86/include/asm/reboot.h
index a671a1145906..04c17be9b5fd 100644
--- a/arch/x86/include/asm/reboot.h
+++ b/arch/x86/include/asm/reboot.h
@@ -26,6 +26,7 @@ void __noreturn machine_real_restart(unsigned int type);
 #define MRR_APM		1
 
 typedef void (*nmi_shootdown_cb)(int, struct pt_regs*);
+void nmi_panic_self_stop(struct pt_regs *regs);
 void nmi_shootdown_cpus(nmi_shootdown_cb callback);
 void run_crash_ipi_callback(struct pt_regs *regs);
 
diff --git a/arch/x86/include/asm/sighandling.h b/arch/x86/include/asm/sighandling.h
index bd26834724e5..2fcbd6f33ef7 100644
--- a/arch/x86/include/asm/sighandling.h
+++ b/arch/x86/include/asm/sighandling.h
@@ -17,4 +17,9 @@ void signal_fault(struct pt_regs *regs, void __user *frame, char *where);
 int setup_sigcontext(struct sigcontext __user *sc, void __user *fpstate,
 		     struct pt_regs *regs, unsigned long mask);
 
+
+#ifdef CONFIG_X86_X32_ABI
+asmlinkage long sys32_x32_rt_sigreturn(void);
+#endif
+
 #endif /* _ASM_X86_SIGHANDLING_H */
diff --git a/arch/x86/include/asm/smp.h b/arch/x86/include/asm/smp.h
index 547c4fe50711..2e95b6c1bca3 100644
--- a/arch/x86/include/asm/smp.h
+++ b/arch/x86/include/asm/smp.h
@@ -148,6 +148,12 @@ void x86_idle_thread_init(unsigned int cpu, struct task_struct *idle);
 
 void smp_store_boot_cpu_info(void);
 void smp_store_cpu_info(int id);
+
+asmlinkage __visible void smp_reboot_interrupt(void);
+__visible void smp_reschedule_interrupt(struct pt_regs *regs);
+__visible void smp_call_function_interrupt(struct pt_regs *regs);
+__visible void smp_call_function_single_interrupt(struct pt_regs *r);
+
 #define cpu_physical_id(cpu)	per_cpu(x86_cpu_to_apicid, cpu)
 #define cpu_acpi_id(cpu)	per_cpu(x86_cpu_to_acpiid, cpu)
 
diff --git a/arch/x86/include/asm/traps.h b/arch/x86/include/asm/traps.h
index 877afdedbbc5..5fcdf5687406 100644
--- a/arch/x86/include/asm/traps.h
+++ b/arch/x86/include/asm/traps.h
@@ -75,6 +75,10 @@ dotraplinkage void do_segment_not_present(struct pt_regs *regs, long error_code)
 dotraplinkage void do_stack_segment(struct pt_regs *regs, long error_code);
 #ifdef CONFIG_X86_64
 dotraplinkage void do_double_fault(struct pt_regs *regs, long error_code);
+asmlinkage __visible notrace struct pt_regs *sync_regs(struct pt_regs *eregs);
+asmlinkage __visible notrace
+struct bad_iret_stack *fixup_bad_iret(struct bad_iret_stack *s);
+void __init trap_init(void);
 #endif
 dotraplinkage void do_general_protection(struct pt_regs *regs, long error_code);
 dotraplinkage void do_page_fault(struct pt_regs *regs, unsigned long error_code);
diff --git a/arch/x86/include/asm/tsc.h b/arch/x86/include/asm/tsc.h
index eb5bbfeccb66..8a0c25c6bf09 100644
--- a/arch/x86/include/asm/tsc.h
+++ b/arch/x86/include/asm/tsc.h
@@ -35,6 +35,7 @@ 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/arch/x86/kernel/check.c b/arch/x86/kernel/check.c
index 1979a76bfadd..5136e6818da8 100644
--- a/arch/x86/kernel/check.c
+++ b/arch/x86/kernel/check.c
@@ -9,6 +9,7 @@
 #include <linux/memblock.h>
 
 #include <asm/proto.h>
+#include <asm/setup.h>
 
 /*
  * Some BIOSes seem to corrupt the low 64k of memory during events
@@ -136,7 +137,7 @@ void __init setup_bios_corruption_check(void)
 }
 
 
-void check_for_bios_corruption(void)
+static void check_for_bios_corruption(void)
 {
 	int i;
 	int corruption = 0;
diff --git a/arch/x86/kernel/crash.c b/arch/x86/kernel/crash.c
index f631a3f15587..c8b07d8ea5a2 100644
--- a/arch/x86/kernel/crash.c
+++ b/arch/x86/kernel/crash.c
@@ -37,6 +37,7 @@
 #include <asm/reboot.h>
 #include <asm/virtext.h>
 #include <asm/intel_pt.h>
+#include <asm/crash.h>
 
 /* Used while preparing memory map entries for second kernel */
 struct crash_memmap_data {
diff --git a/arch/x86/kernel/devicetree.c b/arch/x86/kernel/devicetree.c
index 7299dcbf8e85..8d85e00bb40a 100644
--- a/arch/x86/kernel/devicetree.c
+++ b/arch/x86/kernel/devicetree.c
@@ -23,6 +23,7 @@
 #include <asm/pci_x86.h>
 #include <asm/setup.h>
 #include <asm/i8259.h>
+#include <asm/prom.h>
 
 __initdata u64 initial_dtb;
 char __initdata cmd_line[COMMAND_LINE_SIZE];
diff --git a/arch/x86/kernel/jailhouse.c b/arch/x86/kernel/jailhouse.c
index 108c48d0d40e..1b2ee55a2dfb 100644
--- a/arch/x86/kernel/jailhouse.c
+++ b/arch/x86/kernel/jailhouse.c
@@ -19,6 +19,7 @@
 #include <asm/pci_x86.h>
 #include <asm/reboot.h>
 #include <asm/setup.h>
+#include <asm/jailhouse_para.h>
 
 static __initdata struct jailhouse_setup_data setup_data;
 static unsigned int precalibrated_tsc_khz;
diff --git a/arch/x86/kernel/process.c b/arch/x86/kernel/process.c
index c93fcfdf1673..8a33d4ad9661 100644
--- a/arch/x86/kernel/process.c
+++ b/arch/x86/kernel/process.c
@@ -22,6 +22,8 @@
 #include <linux/utsname.h>
 #include <linux/stackprotector.h>
 #include <linux/cpuidle.h>
+#include <linux/acpi.h>
+#include <linux/elf-randomize.h>
 #include <trace/events/power.h>
 #include <linux/hw_breakpoint.h>
 #include <asm/cpu.h>
@@ -39,6 +41,7 @@
 #include <asm/desc.h>
 #include <asm/prctl.h>
 #include <asm/spec-ctrl.h>
+#include <asm/proto.h>
 
 /*
  * per-CPU TSS segments. Threads are completely 'soft' on Linux,
diff --git a/arch/x86/kernel/quirks.c b/arch/x86/kernel/quirks.c
index 736348ead421..8451f38ad399 100644
--- a/arch/x86/kernel/quirks.c
+++ b/arch/x86/kernel/quirks.c
@@ -7,6 +7,7 @@
 #include <linux/irq.h>
 
 #include <asm/hpet.h>
+#include <asm/setup.h>
 
 #if defined(CONFIG_X86_IO_APIC) && defined(CONFIG_SMP) && defined(CONFIG_PCI)
 
diff --git a/arch/x86/kernel/tracepoint.c b/arch/x86/kernel/tracepoint.c
index 5bd30c442794..2e85f4dcf77b 100644
--- a/arch/x86/kernel/tracepoint.c
+++ b/arch/x86/kernel/tracepoint.c
@@ -10,6 +10,7 @@
 
 #include <asm/hw_irq.h>
 #include <asm/desc.h>
+#include <asm/trace/exceptions.h>
 
 DEFINE_STATIC_KEY_FALSE(trace_pagefault_key);
 
diff --git a/include/linux/efi.h b/include/linux/efi.h
index 845174e113ce..890c4cb37502 100644
--- a/include/linux/efi.h
+++ b/include/linux/efi.h
@@ -1053,6 +1053,8 @@ extern struct kobject *efi_kobj;
 extern int efi_reboot_quirk_mode;
 extern bool efi_poweroff_required(void);
 
+extern void efifb_setup_from_dmi(struct screen_info *si, const char *opt);
+
 #ifdef CONFIG_EFI_FAKE_MEMMAP
 extern void __init efi_fake_memmap(void);
 #else
diff --git a/include/linux/ftrace.h b/include/linux/ftrace.h
index a397907e8d72..182d669cc918 100644
--- a/include/linux/ftrace.h
+++ b/include/linux/ftrace.h
@@ -420,6 +420,9 @@ enum {
 };
 
 void arch_ftrace_update_code(int command);
+void arch_ftrace_update_trampoline(struct ftrace_ops *ops);
+void *arch_ftrace_trampoline_func(struct ftrace_ops *ops, struct dyn_ftrace *rec);
+void arch_ftrace_trampoline_free(struct ftrace_ops *ops);
 
 struct ftrace_rec_iter;
 
diff --git a/include/linux/kexec.h b/include/linux/kexec.h
index 9e4e638fb505..53efedae3d5b 100644
--- a/include/linux/kexec.h
+++ b/include/linux/kexec.h
@@ -174,6 +174,7 @@ int kexec_purgatory_get_set_symbol(struct kimage *image, const char *name,
 				   bool get_value);
 void *kexec_purgatory_get_symbol_addr(struct kimage *image, const char *name);
 
+void * __weak arch_kexec_kernel_image_load(struct kimage *image);
 int __weak arch_kexec_apply_relocations_add(struct purgatory_info *pi,
 					    Elf_Shdr *section,
 					    const Elf_Shdr *relsec,
diff --git a/include/linux/of_fdt.h b/include/linux/of_fdt.h
index b9cd9ebdf9b9..a713e5d156d8 100644
--- a/include/linux/of_fdt.h
+++ b/include/linux/of_fdt.h
@@ -76,6 +76,7 @@ extern int early_init_dt_scan_memory(unsigned long node, const char *uname,
 extern int early_init_dt_scan_chosen_stdout(void);
 extern void early_init_fdt_scan_reserved_mem(void);
 extern void early_init_fdt_reserve_self(void);
+extern void __init early_init_dt_scan_chosen_arch(unsigned long node);
 extern void early_init_dt_add_memory_arch(u64 base, u64 size);
 extern int early_init_dt_mark_hotplug_memory_arch(u64 base, u64 size);
 extern int early_init_dt_reserve_memory_arch(phys_addr_t base, phys_addr_t size,
diff --git a/include/linux/ptrace.h b/include/linux/ptrace.h
index 6c2ffed907f5..a37d7c00da65 100644
--- a/include/linux/ptrace.h
+++ b/include/linux/ptrace.h
@@ -428,4 +428,5 @@ extern int task_current_syscall(struct task_struct *target, long *callno,
 				unsigned long args[6], unsigned int maxargs,
 				unsigned long *sp, unsigned long *pc);
 
+extern void sigaction_compat_abi(struct k_sigaction *act, struct k_sigaction *oact);
 #endif

^ permalink raw reply related	[flat|nested] 16+ messages in thread
* Re: [PATCH] x86: fix -Wmissing-prototypes warning
  2018-11-22  8:48   ` Ingo Molnar
@ 2018-11-22 11:04     ` wang.yi59
  -1 siblings, 0 replies; 16+ messages in thread
From: wang.yi59 @ 2018-11-22 11:04 UTC (permalink / raw)
  To: mingo
  Cc: tglx, mingo, bp, hpa, x86, linux-kernel, ard.biesheuvel,
	linux-efi, pbonzini, rkrcmar, kvm, jgross, akataria,
	virtualization, m.mizuma, peterz, prarit, douly.fnst, dwmw, luto,
	pasha.tatashin, rajvi.jingar, zhe.he, akpm, dyoung,
	takahiro.akashi, ebiederm, bhe, ivan.gorinov, robh,
	andy.shevchenko, frank.rowand, jan.kiszka


[-- Attachment #1.1: Type: text/plain, Size: 1722 bytes --]

Hi Ingo,

> * Yi Wang <wang.yi59@zte.com.cn> wrote:
>
> > We may get -Wmissing-prototypes warnings when building
> > kernel with W=1, it's better to fix them as global function
> > signature can be changed and caller who use the old unchanged
> > prototypes will be hosed.
> >
> > This patch fixes most of -Wmissing-prototypes warnings which
> > are in the root directory of arch/x86/kernel, not including
> > the subdirectories.
> >
> > These are the warnings fixed in this patch:
> > arch/x86/kernel/signal.c:865:17: warning: no previous prototype for ‘sys32_x32_rt_sigreturn’ [-Wmissing-prototypes]

......

> >  include/linux/ftrace.h             | 3 +++
> >  include/linux/kexec.h              | 1 +
> >  include/linux/of_fdt.h             | 1 +
> >  include/linux/ptrace.h             | 1 +
> >  24 files changed, 55 insertions(+), 3 deletions(-)
>
> Breaks 32-bit compilation:
>
> ../arch/x86/include/asm/setup.h: Assembler messages:
> ../arch/x86/include/asm/setup.h:30: Error: no such instruction: `unsigned long __startup_64(unsigned long physaddr,struct boot_params *bp)'
>
> I'll skip the setup.h bits - let's hope that's the only bug.

Sorry for the inconvenience, though I have checked carefully :-)

How do you produce this error? I tested this way but did not reproduce
that error:
# make allmodconfig
# make -j8

Thanks for your time again!


---
Best wishes
Yi Wang

-- 
You received this message because you are subscribed to the Google Groups "Jailhouse" group.
To unsubscribe from this group and stop receiving emails from it, send an email to jailhouse-dev+unsubscribe@googlegroups.com.
For more options, visit https://groups.google.com/d/optout.

^ permalink raw reply	[flat|nested] 16+ messages in thread
* Re: [PATCH] x86: fix -Wmissing-prototypes warning
@ 2018-11-22 11:04     ` wang.yi59
  0 siblings, 0 replies; 16+ messages in thread
From: wang.yi59 @ 2018-11-22 11:04 UTC (permalink / raw)
  To: mingo
  Cc: tglx, mingo, bp, hpa, x86, linux-kernel, ard.biesheuvel,
	linux-efi, pbonzini, rkrcmar, kvm, jgross, akataria,
	virtualization, m.mizuma, peterz, prarit, douly.fnst, dwmw, luto,
	pasha.tatashin, rajvi.jingar, zhe.he, akpm, dyoung,
	takahiro.akashi, ebiederm, bhe, ivan.gorinov, robh,
	andy.shevchenko, frank.rowand, jan.kiszka


[-- Attachment #1.1: Type: text/plain, Size: 1722 bytes --]

Hi Ingo,

> * Yi Wang <wang.yi59@zte.com.cn> wrote:
>
> > We may get -Wmissing-prototypes warnings when building
> > kernel with W=1, it's better to fix them as global function
> > signature can be changed and caller who use the old unchanged
> > prototypes will be hosed.
> >
> > This patch fixes most of -Wmissing-prototypes warnings which
> > are in the root directory of arch/x86/kernel, not including
> > the subdirectories.
> >
> > These are the warnings fixed in this patch:
> > arch/x86/kernel/signal.c:865:17: warning: no previous prototype for ‘sys32_x32_rt_sigreturn’ [-Wmissing-prototypes]

......

> >  include/linux/ftrace.h             | 3 +++
> >  include/linux/kexec.h              | 1 +
> >  include/linux/of_fdt.h             | 1 +
> >  include/linux/ptrace.h             | 1 +
> >  24 files changed, 55 insertions(+), 3 deletions(-)
>
> Breaks 32-bit compilation:
>
> ../arch/x86/include/asm/setup.h: Assembler messages:
> ../arch/x86/include/asm/setup.h:30: Error: no such instruction: `unsigned long __startup_64(unsigned long physaddr,struct boot_params *bp)'
>
> I'll skip the setup.h bits - let's hope that's the only bug.

Sorry for the inconvenience, though I have checked carefully :-)

How do you produce this error? I tested this way but did not reproduce
that error:
# make allmodconfig
# make -j8

Thanks for your time again!


---
Best wishes
Yi Wang

-- 
You received this message because you are subscribed to the Google Groups "Jailhouse" group.
To unsubscribe from this group and stop receiving emails from it, send an email to jailhouse-dev+unsubscribe@googlegroups.com.
For more options, visit https://groups.google.com/d/optout.

^ permalink raw reply	[flat|nested] 16+ messages in thread
* Re: [PATCH] x86: fix -Wmissing-prototypes warning
  2018-11-22 11:04     ` wang.yi59
  (?)
@ 2018-11-22 11:14       ` Ingo Molnar
  -1 siblings, 0 replies; 16+ messages in thread
From: Ingo Molnar @ 2018-11-22 11:14 UTC (permalink / raw)
  To: wang.yi59
  Cc: tglx, mingo, bp, hpa, x86, linux-kernel, ard.biesheuvel,
	linux-efi, pbonzini, rkrcmar, kvm, jgross, akataria,
	virtualization, m.mizuma, peterz, prarit, douly.fnst, dwmw, luto,
	pasha.tatashin, rajvi.jingar, zhe.he, akpm, dyoung,
	takahiro.akashi, ebiederm, bhe, ivan.gorinov, robh,
	andy.shevchenko, frank.rowand, jan.kiszka, jailhouse-dev,
	konrad.wilk, thomas.lendacky, pravin.shedge4linux, namit,
	jroedel, bhelgaas, linux-pci, keescook, anton, ccross, tony.luck,
	rostedt, kexec, robh+dt, frowand.list, devicetree, oleg,
	zhong.weidong, up2wing


* wang.yi59@zte.com.cn <wang.yi59@zte.com.cn> wrote:

> Hi Ingo,
> 
> > * Yi Wang <wang.yi59@zte.com.cn> wrote:
> >
> > > We may get -Wmissing-prototypes warnings when building
> > > kernel with W=1, it's better to fix them as global function
> > > signature can be changed and caller who use the old unchanged
> > > prototypes will be hosed.
> > >
> > > This patch fixes most of -Wmissing-prototypes warnings which
> > > are in the root directory of arch/x86/kernel, not including
> > > the subdirectories.
> > >
> > > These are the warnings fixed in this patch:
> > > arch/x86/kernel/signal.c:865:17: warning: no previous prototype for ‘sys32_x32_rt_sigreturn’ [-Wmissing-prototypes]
> 
> ......
> 
> > >  include/linux/ftrace.h             | 3 +++
> > >  include/linux/kexec.h              | 1 +
> > >  include/linux/of_fdt.h             | 1 +
> > >  include/linux/ptrace.h             | 1 +
> > >  24 files changed, 55 insertions(+), 3 deletions(-)
> >
> > Breaks 32-bit compilation:
> >
> > ../arch/x86/include/asm/setup.h: Assembler messages:
> > ../arch/x86/include/asm/setup.h:30: Error: no such instruction: `unsigned long __startup_64(unsigned long physaddr,struct boot_params *bp)'
> >
> > I'll skip the setup.h bits - let's hope that's the only bug.
> 
> Sorry for the inconvenience, though I have checked carefully :-)
> 
> How do you produce this error? I tested this way but did not reproduce
> that error:
> # make allmodconfig
> # make -j8
> 
> Thanks for your time again!

I don't remember the exact config, but you could try the 32-bit 
allnoconfig and defconfig.

Note that the commands you used above will use the 64-bit kernel, not the 
32-bit kernel.

Thanks,

	Ingo

^ permalink raw reply	[flat|nested] 16+ messages in thread
* Re: [PATCH] x86: fix -Wmissing-prototypes warning
@ 2018-11-22 11:14       ` Ingo Molnar
  0 siblings, 0 replies; 16+ messages in thread
From: Ingo Molnar @ 2018-11-22 11:14 UTC (permalink / raw)
  To: wang.yi59
  Cc: tglx, mingo, bp, hpa, x86, linux-kernel, ard.biesheuvel,
	linux-efi, pbonzini, rkrcmar, kvm, jgross, akataria,
	virtualization, m.mizuma, peterz, prarit, douly.fnst, dwmw, luto,
	pasha.tatashin, rajvi.jingar, zhe.he, akpm, dyoung,
	takahiro.akashi, ebiederm, bhe, ivan.gorinov, robh,
	andy.shevchenko, frank.rowand, jan.kiszka, jailhouse-dev,
	konrad.wilk, thomas.lendacky, pravin.shedge4linux, namit,
	jroedel


* wang.yi59@zte.com.cn <wang.yi59@zte.com.cn> wrote:

> Hi Ingo,
> 
> > * Yi Wang <wang.yi59@zte.com.cn> wrote:
> >
> > > We may get -Wmissing-prototypes warnings when building
> > > kernel with W=1, it's better to fix them as global function
> > > signature can be changed and caller who use the old unchanged
> > > prototypes will be hosed.
> > >
> > > This patch fixes most of -Wmissing-prototypes warnings which
> > > are in the root directory of arch/x86/kernel, not including
> > > the subdirectories.
> > >
> > > These are the warnings fixed in this patch:
> > > arch/x86/kernel/signal.c:865:17: warning: no previous prototype for ‘sys32_x32_rt_sigreturn’ [-Wmissing-prototypes]
> 
> ......
> 
> > >  include/linux/ftrace.h             | 3 +++
> > >  include/linux/kexec.h              | 1 +
> > >  include/linux/of_fdt.h             | 1 +
> > >  include/linux/ptrace.h             | 1 +
> > >  24 files changed, 55 insertions(+), 3 deletions(-)
> >
> > Breaks 32-bit compilation:
> >
> > ../arch/x86/include/asm/setup.h: Assembler messages:
> > ../arch/x86/include/asm/setup.h:30: Error: no such instruction: `unsigned long __startup_64(unsigned long physaddr,struct boot_params *bp)'
> >
> > I'll skip the setup.h bits - let's hope that's the only bug.
> 
> Sorry for the inconvenience, though I have checked carefully :-)
> 
> How do you produce this error? I tested this way but did not reproduce
> that error:
> # make allmodconfig
> # make -j8
> 
> Thanks for your time again!

I don't remember the exact config, but you could try the 32-bit 
allnoconfig and defconfig.

Note that the commands you used above will use the 64-bit kernel, not the 
32-bit kernel.

Thanks,

	Ingo

-- 
You received this message because you are subscribed to the Google Groups "Jailhouse" group.
To unsubscribe from this group and stop receiving emails from it, send an email to jailhouse-dev+unsubscribe@googlegroups.com.
For more options, visit https://groups.google.com/d/optout.

^ permalink raw reply	[flat|nested] 16+ messages in thread
* Re: [PATCH] x86: fix -Wmissing-prototypes warning
  2018-11-22 11:04     ` wang.yi59
  (?)
  (?)
@ 2018-11-22 11:14     ` Ingo Molnar
  -1 siblings, 0 replies; 16+ messages in thread
From: Ingo Molnar @ 2018-11-22 11:14 UTC (permalink / raw)
  To: wang.yi59
  Cc: linux-efi, anton, kvm, rkrcmar, peterz, jan.kiszka,
	virtualization, pravin.shedge4linux, namit, hpa, akataria,
	prarit, robh, zhong.weidong, bhe, devicetree, x86,
	pasha.tatashin, takahiro.akashi, andy.shevchenko, mingo,
	linux-pci, dyoung, m.mizuma, jailhouse-dev, jroedel, keescook,
	konrad.wilk, rostedt, rajvi.jingar, tony.luck, bp, luto, oleg,
	bhelgaas, tglx, frank.rowand, jgross, douly.fnst, thomas.le


* wang.yi59@zte.com.cn <wang.yi59@zte.com.cn> wrote:

> Hi Ingo,
> 
> > * Yi Wang <wang.yi59@zte.com.cn> wrote:
> >
> > > We may get -Wmissing-prototypes warnings when building
> > > kernel with W=1, it's better to fix them as global function
> > > signature can be changed and caller who use the old unchanged
> > > prototypes will be hosed.
> > >
> > > This patch fixes most of -Wmissing-prototypes warnings which
> > > are in the root directory of arch/x86/kernel, not including
> > > the subdirectories.
> > >
> > > These are the warnings fixed in this patch:
> > > arch/x86/kernel/signal.c:865:17: warning: no previous prototype for ‘sys32_x32_rt_sigreturn’ [-Wmissing-prototypes]
> 
> ......
> 
> > >  include/linux/ftrace.h             | 3 +++
> > >  include/linux/kexec.h              | 1 +
> > >  include/linux/of_fdt.h             | 1 +
> > >  include/linux/ptrace.h             | 1 +
> > >  24 files changed, 55 insertions(+), 3 deletions(-)
> >
> > Breaks 32-bit compilation:
> >
> > ../arch/x86/include/asm/setup.h: Assembler messages:
> > ../arch/x86/include/asm/setup.h:30: Error: no such instruction: `unsigned long __startup_64(unsigned long physaddr,struct boot_params *bp)'
> >
> > I'll skip the setup.h bits - let's hope that's the only bug.
> 
> Sorry for the inconvenience, though I have checked carefully :-)
> 
> How do you produce this error? I tested this way but did not reproduce
> that error:
> # make allmodconfig
> # make -j8
> 
> Thanks for your time again!

I don't remember the exact config, but you could try the 32-bit 
allnoconfig and defconfig.

Note that the commands you used above will use the 64-bit kernel, not the 
32-bit kernel.

Thanks,

	Ingo
_______________________________________________
Virtualization mailing list
Virtualization@lists.linux-foundation.org
https://lists.linuxfoundation.org/mailman/listinfo/virtualization

^ permalink raw reply	[flat|nested] 16+ messages in thread
* Re: [PATCH] x86: fix -Wmissing-prototypes warning
@ 2018-11-22 11:14       ` Ingo Molnar
  0 siblings, 0 replies; 16+ messages in thread
From: Ingo Molnar @ 2018-11-22 11:14 UTC (permalink / raw)
  To: wang.yi59
  Cc: linux-efi, anton, kvm, rkrcmar, peterz, jan.kiszka,
	virtualization, pravin.shedge4linux, namit, hpa, frowand.list,
	akataria, prarit, robh, zhong.weidong, bhe, devicetree, x86,
	pasha.tatashin, takahiro.akashi, andy.shevchenko, mingo,
	linux-pci, dyoung, m.mizuma, jailhouse-dev, jroedel, keescook,
	konrad.wilk, rostedt, rajvi.jingar, tony.luck, bp, luto, oleg,
	bhelgaas, tglx, frank.rowand, jgross, douly.fnst,
	thomas.lendacky, zhe.he, ard.biesheuvel, kexec, linux-kernel,
	robh+dt, ebiederm, ccross, pbonzini, akpm, up2wing, dwmw,
	ivan.gorinov


* wang.yi59@zte.com.cn <wang.yi59@zte.com.cn> wrote:

> Hi Ingo,
> 
> > * Yi Wang <wang.yi59@zte.com.cn> wrote:
> >
> > > We may get -Wmissing-prototypes warnings when building
> > > kernel with W=1, it's better to fix them as global function
> > > signature can be changed and caller who use the old unchanged
> > > prototypes will be hosed.
> > >
> > > This patch fixes most of -Wmissing-prototypes warnings which
> > > are in the root directory of arch/x86/kernel, not including
> > > the subdirectories.
> > >
> > > These are the warnings fixed in this patch:
> > > arch/x86/kernel/signal.c:865:17: warning: no previous prototype for ‘sys32_x32_rt_sigreturn’ [-Wmissing-prototypes]
> 
> ......
> 
> > >  include/linux/ftrace.h             | 3 +++
> > >  include/linux/kexec.h              | 1 +
> > >  include/linux/of_fdt.h             | 1 +
> > >  include/linux/ptrace.h             | 1 +
> > >  24 files changed, 55 insertions(+), 3 deletions(-)
> >
> > Breaks 32-bit compilation:
> >
> > ../arch/x86/include/asm/setup.h: Assembler messages:
> > ../arch/x86/include/asm/setup.h:30: Error: no such instruction: `unsigned long __startup_64(unsigned long physaddr,struct boot_params *bp)'
> >
> > I'll skip the setup.h bits - let's hope that's the only bug.
> 
> Sorry for the inconvenience, though I have checked carefully :-)
> 
> How do you produce this error? I tested this way but did not reproduce
> that error:
> # make allmodconfig
> # make -j8
> 
> Thanks for your time again!

I don't remember the exact config, but you could try the 32-bit 
allnoconfig and defconfig.

Note that the commands you used above will use the 64-bit kernel, not the 
32-bit kernel.

Thanks,

	Ingo

_______________________________________________
kexec mailing list
kexec@lists.infradead.org
http://lists.infradead.org/mailman/listinfo/kexec

^ permalink raw reply	[flat|nested] 16+ messages in thread
* Re: [tip:x86/cleanups] x86/headers: Fix -Wmissing-prototypes warning
  2018-11-22 10:15 ` [tip:x86/cleanups] x86/headers: Fix " tip-bot for Yi Wang
@ 2018-11-23  7:03   ` Ingo Molnar
  0 siblings, 0 replies; 16+ messages in thread
From: Ingo Molnar @ 2018-11-23  7:03 UTC (permalink / raw)
  To: wang.yi59, torvalds, tglx, linux-kernel, hpa, peterz; +Cc: linux-tip-commits


* tip-bot for Yi Wang <tipbot@zytor.com> wrote:

> Commit-ID:  d37904c5b14317a2c76efec6b9e4dbcaa17380e5
> Gitweb:     https://git.kernel.org/tip/d37904c5b14317a2c76efec6b9e4dbcaa17380e5
> Author:     Yi Wang <wang.yi59@zte.com.cn>
> AuthorDate: Thu, 22 Nov 2018 10:04:09 +0800
> Committer:  Ingo Molnar <mingo@kernel.org>
> CommitDate: Thu, 22 Nov 2018 09:52:28 +0100
> 
> x86/headers: Fix -Wmissing-prototypes warning


>  #endif /* _ASM_X86_CRASH_H */
> diff --git a/arch/x86/include/asm/efi.h b/arch/x86/include/asm/efi.h
> index eea40d52ca78..063f1d4d698e 100644
> --- a/arch/x86/include/asm/efi.h
> +++ b/arch/x86/include/asm/efi.h
> @@ -173,8 +173,6 @@ static inline bool efi_runtime_supported(void)
>  extern struct console early_efi_console;
>  extern void parse_efi_setup(u64 phys_addr, u32 data_len);
>  
> -extern void efifb_setup_from_dmi(struct screen_info *si, const char *opt);
> -
>  #ifdef CONFIG_EFI_MIXED
>  extern void efi_thunk_runtime_setup(void);
>  extern efi_status_t efi_thunk_set_virtual_address_map(

> diff --git a/include/linux/efi.h b/include/linux/efi.h
> index 845174e113ce..890c4cb37502 100644
> --- a/include/linux/efi.h
> +++ b/include/linux/efi.h
> @@ -1053,6 +1053,8 @@ extern struct kobject *efi_kobj;
>  extern int efi_reboot_quirk_mode;
>  extern bool efi_poweroff_required(void);
>  
> +extern void efifb_setup_from_dmi(struct screen_info *si, const char *opt);
> +
>  #ifdef CONFIG_EFI_FAKE_MEMMAP
>  extern void __init efi_fake_memmap(void);
>  #else

These efifb_setup_from_dmi() changes were completely bogus and broke 
every non-x86 EFI architecture, which a simple:

  git grep efifb_setup_from_dmi

should have already exposed.

Did you actually check the usage of every single prototype and think 
about them case by case? It doesn't seem to be the case.

Thanks,

	Ingo

^ permalink raw reply	[flat|nested] 16+ messages in thread
* [tip:x86/cleanups] x86/headers: Fix -Wmissing-prototypes warning
  2018-11-22  2:04 ` Yi Wang
                   ` (4 preceding siblings ...)
  (?)
@ 2018-11-23  7:04 ` tip-bot for Yi Wang
  -1 siblings, 0 replies; 16+ messages in thread
From: tip-bot for Yi Wang @ 2018-11-23  7:04 UTC (permalink / raw)
  To: linux-tip-commits
  Cc: tglx, linux-kernel, hpa, torvalds, wang.yi59, mingo, peterz

Commit-ID:  89f579ce99f7e028e81885d3965f973c0f787611
Gitweb:     https://git.kernel.org/tip/89f579ce99f7e028e81885d3965f973c0f787611
Author:     Yi Wang <wang.yi59@zte.com.cn>
AuthorDate: Thu, 22 Nov 2018 10:04:09 +0800
Committer:  Ingo Molnar <mingo@kernel.org>
CommitDate: Fri, 23 Nov 2018 07:59:59 +0100

x86/headers: Fix -Wmissing-prototypes warning

When building the kernel with W=1 we get a lot of -Wmissing-prototypes
warnings, which are trivial in nature and easy to fix - and which may
mask some real future bugs if the prototypes get out of sync with
the function definition.

This patch fixes most of -Wmissing-prototypes warnings which
are in the root directory of arch/x86/kernel, not including
the subdirectories.

These are the warnings fixed in this patch:

  arch/x86/kernel/signal.c:865:17: warning: no previous prototype for ‘sys32_x32_rt_sigreturn’ [-Wmissing-prototypes]
  arch/x86/kernel/signal_compat.c:164:6: warning: no previous prototype for ‘sigaction_compat_abi’ [-Wmissing-prototypes]
  arch/x86/kernel/traps.c:625:46: warning: no previous prototype for ‘sync_regs’ [-Wmissing-prototypes]
  arch/x86/kernel/traps.c:640:24: warning: no previous prototype for ‘fixup_bad_iret’ [-Wmissing-prototypes]
  arch/x86/kernel/traps.c:929:13: warning: no previous prototype for ‘trap_init’ [-Wmissing-prototypes]
  arch/x86/kernel/irq.c:270:28: warning: no previous prototype for ‘smp_x86_platform_ipi’ [-Wmissing-prototypes]
  arch/x86/kernel/irq.c:301:16: warning: no previous prototype for ‘smp_kvm_posted_intr_ipi’ [-Wmissing-prototypes]
  arch/x86/kernel/irq.c:314:16: warning: no previous prototype for ‘smp_kvm_posted_intr_wakeup_ipi’ [-Wmissing-prototypes]
  arch/x86/kernel/irq.c:328:16: warning: no previous prototype for ‘smp_kvm_posted_intr_nested_ipi’ [-Wmissing-prototypes]
  arch/x86/kernel/irq_work.c:16:28: warning: no previous prototype for ‘smp_irq_work_interrupt’ [-Wmissing-prototypes]
  arch/x86/kernel/irqinit.c:79:13: warning: no previous prototype for ‘init_IRQ’ [-Wmissing-prototypes]
  arch/x86/kernel/quirks.c:672:13: warning: no previous prototype for ‘early_platform_quirks’ [-Wmissing-prototypes]
  arch/x86/kernel/tsc.c:1499:15: warning: no previous prototype for ‘calibrate_delay_is_known’ [-Wmissing-prototypes]
  arch/x86/kernel/process.c:653:13: warning: no previous prototype for ‘arch_post_acpi_subsys_init’ [-Wmissing-prototypes]
  arch/x86/kernel/process.c:717:15: warning: no previous prototype for ‘arch_randomize_brk’ [-Wmissing-prototypes]
  arch/x86/kernel/process.c:784:6: warning: no previous prototype for ‘do_arch_prctl_common’ [-Wmissing-prototypes]
  arch/x86/kernel/reboot.c:869:6: warning: no previous prototype for ‘nmi_panic_self_stop’ [-Wmissing-prototypes]
  arch/x86/kernel/smp.c:176:27: warning: no previous prototype for ‘smp_reboot_interrupt’ [-Wmissing-prototypes]
  arch/x86/kernel/smp.c:260:28: warning: no previous prototype for ‘smp_reschedule_interrupt’ [-Wmissing-prototypes]
  arch/x86/kernel/smp.c:281:28: warning: no previous prototype for ‘smp_call_function_interrupt’ [-Wmissing-prototypes]
  arch/x86/kernel/smp.c:291:28: warning: no previous prototype for ‘smp_call_function_single_interrupt’ [-Wmissing-prototypes]
  arch/x86/kernel/ftrace.c:840:6: warning: no previous prototype for ‘arch_ftrace_update_trampoline’ [-Wmissing-prototypes]
  arch/x86/kernel/ftrace.c:934:7: warning: no previous prototype for ‘arch_ftrace_trampoline_func’ [-Wmissing-prototypes]
  arch/x86/kernel/ftrace.c:946:6: warning: no previous prototype for ‘arch_ftrace_trampoline_free’ [-Wmissing-prototypes]
  arch/x86/kernel/crash.c:114:6: warning: no previous prototype for ‘crash_smp_send_stop’ [-Wmissing-prototypes]
  arch/x86/kernel/crash.c:351:5: warning: no previous prototype for ‘crash_setup_memmap_entries’ [-Wmissing-prototypes]
  arch/x86/kernel/crash.c:424:5: warning: no previous prototype for ‘crash_load_segments’ [-Wmissing-prototypes]
  arch/x86/kernel/machine_kexec_64.c:372:7: warning: no previous prototype for ‘arch_kexec_kernel_image_load’ [-Wmissing-prototypes]
  arch/x86/kernel/paravirt-spinlocks.c:12:16: warning: no previous prototype for ‘__native_queued_spin_unlock’ [-Wmissing-prototypes]
  arch/x86/kernel/paravirt-spinlocks.c:18:6: warning: no previous prototype for ‘pv_is_native_spin_unlock’ [-Wmissing-prototypes]
  arch/x86/kernel/paravirt-spinlocks.c:24:16: warning: no previous prototype for ‘__native_vcpu_is_preempted’ [-Wmissing-prototypes]
  arch/x86/kernel/paravirt-spinlocks.c:30:6: warning: no previous prototype for ‘pv_is_native_vcpu_is_preempted’ [-Wmissing-prototypes]
  arch/x86/kernel/kvm.c:258:1: warning: no previous prototype for ‘do_async_page_fault’ [-Wmissing-prototypes]
  arch/x86/kernel/jailhouse.c:200:6: warning: no previous prototype for ‘jailhouse_paravirt’ [-Wmissing-prototypes]
  arch/x86/kernel/check.c:91:13: warning: no previous prototype for ‘setup_bios_corruption_check’ [-Wmissing-prototypes]
  arch/x86/kernel/check.c:139:6: warning: no previous prototype for ‘check_for_bios_corruption’ [-Wmissing-prototypes]
  arch/x86/kernel/devicetree.c:32:13: warning: no previous prototype for ‘early_init_dt_scan_chosen_arch’ [-Wmissing-prototypes]
  arch/x86/kernel/devicetree.c:42:13: warning: no previous prototype for ‘add_dtb’ [-Wmissing-prototypes]
  arch/x86/kernel/devicetree.c:108:6: warning: no previous prototype for ‘x86_of_pci_init’ [-Wmissing-prototypes]
  arch/x86/kernel/devicetree.c:314:13: warning: no previous prototype for ‘x86_dtb_init’ [-Wmissing-prototypes]
  arch/x86/kernel/tracepoint.c:16:5: warning: no previous prototype for ‘trace_pagefault_reg’ [-Wmissing-prototypes]
  arch/x86/kernel/tracepoint.c:22:6: warning: no previous prototype for ‘trace_pagefault_unreg’ [-Wmissing-prototypes]
  arch/x86/kernel/head64.c:113:22: warning: no previous prototype for ‘__startup_64’ [-Wmissing-prototypes]
  arch/x86/kernel/head64.c:262:15: warning: no previous prototype for ‘__startup_secondary_64’ [-Wmissing-prototypes]
  arch/x86/kernel/head64.c:350:12: warning: no previous prototype for ‘early_make_pgtable’ [-Wmissing-prototypes]

[ mingo: rewrote the changelog, fixed build errors. ]

Signed-off-by: Yi Wang <wang.yi59@zte.com.cn>
Cc: Linus Torvalds <torvalds@linux-foundation.org>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Thomas Gleixner <tglx@linutronix.de>
Cc: akataria@vmware.com
Cc: akpm@linux-foundation.org
Cc: andy.shevchenko@gmail.com
Cc: anton@enomsg.org
Cc: ard.biesheuvel@linaro.org
Cc: bhe@redhat.com
Cc: bhelgaas@google.com
Cc: bp@alien8.de
Cc: ccross@android.com
Cc: devicetree@vger.kernel.org
Cc: douly.fnst@cn.fujitsu.com
Cc: dwmw@amazon.co.uk
Cc: dyoung@redhat.com
Cc: ebiederm@xmission.com
Cc: frank.rowand@sony.com
Cc: frowand.list@gmail.com
Cc: ivan.gorinov@intel.com
Cc: jailhouse-dev@googlegroups.com
Cc: jan.kiszka@siemens.com
Cc: jgross@suse.com
Cc: jroedel@suse.de
Cc: keescook@chromium.org
Cc: kexec@lists.infradead.org
Cc: konrad.wilk@oracle.com
Cc: kvm@vger.kernel.org
Cc: linux-efi@vger.kernel.org
Cc: linux-pci@vger.kernel.org
Cc: luto@kernel.org
Cc: m.mizuma@jp.fujitsu.com
Cc: namit@vmware.com
Cc: oleg@redhat.com
Cc: pasha.tatashin@oracle.com
Cc: pbonzini@redhat.com
Cc: prarit@redhat.com
Cc: pravin.shedge4linux@gmail.com
Cc: rajvi.jingar@intel.com
Cc: rkrcmar@redhat.com
Cc: robh+dt@kernel.org
Cc: robh@kernel.org
Cc: rostedt@goodmis.org
Cc: takahiro.akashi@linaro.org
Cc: thomas.lendacky@amd.com
Cc: tony.luck@intel.com
Cc: up2wing@gmail.com
Cc: virtualization@lists.linux-foundation.org
Cc: zhe.he@windriver.com
Cc: zhong.weidong@zte.com.cn
Link: http://lkml.kernel.org/r/1542852249-19820-1-git-send-email-wang.yi59@zte.com.cn
Signed-off-by: Ingo Molnar <mingo@kernel.org>
---
 arch/x86/include/asm/crash.h       | 1 +
 arch/x86/include/asm/irq.h         | 7 +++++++
 arch/x86/include/asm/irq_work.h    | 1 +
 arch/x86/include/asm/kvm_para.h    | 1 +
 arch/x86/include/asm/paravirt.h    | 5 +++++
 arch/x86/include/asm/reboot.h      | 1 +
 arch/x86/include/asm/sighandling.h | 5 +++++
 arch/x86/include/asm/smp.h         | 6 ++++++
 arch/x86/include/asm/traps.h       | 4 ++++
 arch/x86/include/asm/tsc.h         | 1 +
 arch/x86/kernel/check.c            | 3 ++-
 arch/x86/kernel/crash.c            | 1 +
 arch/x86/kernel/devicetree.c       | 1 +
 arch/x86/kernel/jailhouse.c        | 1 +
 arch/x86/kernel/process.c          | 3 +++
 arch/x86/kernel/quirks.c           | 1 +
 arch/x86/kernel/tracepoint.c       | 1 +
 include/linux/ftrace.h             | 3 +++
 include/linux/kexec.h              | 1 +
 include/linux/of_fdt.h             | 1 +
 include/linux/ptrace.h             | 1 +
 21 files changed, 48 insertions(+), 1 deletion(-)

diff --git a/arch/x86/include/asm/crash.h b/arch/x86/include/asm/crash.h
index a7adb2bfbf0b..0acf5ee45a21 100644
--- a/arch/x86/include/asm/crash.h
+++ b/arch/x86/include/asm/crash.h
@@ -6,5 +6,6 @@ int crash_load_segments(struct kimage *image);
 int crash_copy_backup_region(struct kimage *image);
 int crash_setup_memmap_entries(struct kimage *image,
 		struct boot_params *params);
+void crash_smp_send_stop(void);
 
 #endif /* _ASM_X86_CRASH_H */
diff --git a/arch/x86/include/asm/irq.h b/arch/x86/include/asm/irq.h
index 2395bb794c7b..fbb16e6b6c18 100644
--- a/arch/x86/include/asm/irq.h
+++ b/arch/x86/include/asm/irq.h
@@ -30,6 +30,9 @@ extern void fixup_irqs(void);
 
 #ifdef CONFIG_HAVE_KVM
 extern void kvm_set_posted_intr_wakeup_handler(void (*handler)(void));
+extern __visible void smp_kvm_posted_intr_ipi(struct pt_regs *regs);
+extern __visible void smp_kvm_posted_intr_wakeup_ipi(struct pt_regs *regs);
+extern __visible void smp_kvm_posted_intr_nested_ipi(struct pt_regs *regs);
 #endif
 
 extern void (*x86_platform_ipi_callback)(void);
@@ -41,9 +44,13 @@ extern __visible unsigned int do_IRQ(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);
+
+extern __visible void smp_x86_platform_ipi(struct pt_regs *regs);
 #define arch_trigger_cpumask_backtrace arch_trigger_cpumask_backtrace
 #endif
 
diff --git a/arch/x86/include/asm/irq_work.h b/arch/x86/include/asm/irq_work.h
index 800ffce0db29..80b35e3adf03 100644
--- a/arch/x86/include/asm/irq_work.h
+++ b/arch/x86/include/asm/irq_work.h
@@ -10,6 +10,7 @@ static inline bool arch_irq_work_has_interrupt(void)
 	return boot_cpu_has(X86_FEATURE_APIC);
 }
 extern void arch_irq_work_raise(void);
+extern __visible void smp_irq_work_interrupt(struct pt_regs *regs);
 #else
 static inline bool arch_irq_work_has_interrupt(void)
 {
diff --git a/arch/x86/include/asm/kvm_para.h b/arch/x86/include/asm/kvm_para.h
index 4c723632c036..5ed3cf1c3934 100644
--- a/arch/x86/include/asm/kvm_para.h
+++ b/arch/x86/include/asm/kvm_para.h
@@ -92,6 +92,7 @@ void kvm_async_pf_task_wait(u32 token, int interrupt_kernel);
 void kvm_async_pf_task_wake(u32 token);
 u32 kvm_read_and_reset_pf_reason(void);
 extern void kvm_disable_steal_time(void);
+void do_async_page_fault(struct pt_regs *regs, unsigned long error_code);
 
 #ifdef CONFIG_PARAVIRT_SPINLOCKS
 void __init kvm_spinlock_init(void);
diff --git a/arch/x86/include/asm/paravirt.h b/arch/x86/include/asm/paravirt.h
index 4bf42f9e4eea..a97f28d914d5 100644
--- a/arch/x86/include/asm/paravirt.h
+++ b/arch/x86/include/asm/paravirt.h
@@ -26,6 +26,11 @@ struct static_key;
 extern struct static_key paravirt_steal_enabled;
 extern struct static_key paravirt_steal_rq_enabled;
 
+__visible void __native_queued_spin_unlock(struct qspinlock *lock);
+bool pv_is_native_spin_unlock(void);
+__visible bool __native_vcpu_is_preempted(long cpu);
+bool pv_is_native_vcpu_is_preempted(void);
+
 static inline u64 paravirt_steal_clock(int cpu)
 {
 	return PVOP_CALL1(u64, time.steal_clock, cpu);
diff --git a/arch/x86/include/asm/reboot.h b/arch/x86/include/asm/reboot.h
index a671a1145906..04c17be9b5fd 100644
--- a/arch/x86/include/asm/reboot.h
+++ b/arch/x86/include/asm/reboot.h
@@ -26,6 +26,7 @@ void __noreturn machine_real_restart(unsigned int type);
 #define MRR_APM		1
 
 typedef void (*nmi_shootdown_cb)(int, struct pt_regs*);
+void nmi_panic_self_stop(struct pt_regs *regs);
 void nmi_shootdown_cpus(nmi_shootdown_cb callback);
 void run_crash_ipi_callback(struct pt_regs *regs);
 
diff --git a/arch/x86/include/asm/sighandling.h b/arch/x86/include/asm/sighandling.h
index bd26834724e5..2fcbd6f33ef7 100644
--- a/arch/x86/include/asm/sighandling.h
+++ b/arch/x86/include/asm/sighandling.h
@@ -17,4 +17,9 @@ void signal_fault(struct pt_regs *regs, void __user *frame, char *where);
 int setup_sigcontext(struct sigcontext __user *sc, void __user *fpstate,
 		     struct pt_regs *regs, unsigned long mask);
 
+
+#ifdef CONFIG_X86_X32_ABI
+asmlinkage long sys32_x32_rt_sigreturn(void);
+#endif
+
 #endif /* _ASM_X86_SIGHANDLING_H */
diff --git a/arch/x86/include/asm/smp.h b/arch/x86/include/asm/smp.h
index 547c4fe50711..2e95b6c1bca3 100644
--- a/arch/x86/include/asm/smp.h
+++ b/arch/x86/include/asm/smp.h
@@ -148,6 +148,12 @@ void x86_idle_thread_init(unsigned int cpu, struct task_struct *idle);
 
 void smp_store_boot_cpu_info(void);
 void smp_store_cpu_info(int id);
+
+asmlinkage __visible void smp_reboot_interrupt(void);
+__visible void smp_reschedule_interrupt(struct pt_regs *regs);
+__visible void smp_call_function_interrupt(struct pt_regs *regs);
+__visible void smp_call_function_single_interrupt(struct pt_regs *r);
+
 #define cpu_physical_id(cpu)	per_cpu(x86_cpu_to_apicid, cpu)
 #define cpu_acpi_id(cpu)	per_cpu(x86_cpu_to_acpiid, cpu)
 
diff --git a/arch/x86/include/asm/traps.h b/arch/x86/include/asm/traps.h
index 877afdedbbc5..5fcdf5687406 100644
--- a/arch/x86/include/asm/traps.h
+++ b/arch/x86/include/asm/traps.h
@@ -75,6 +75,10 @@ dotraplinkage void do_segment_not_present(struct pt_regs *regs, long error_code)
 dotraplinkage void do_stack_segment(struct pt_regs *regs, long error_code);
 #ifdef CONFIG_X86_64
 dotraplinkage void do_double_fault(struct pt_regs *regs, long error_code);
+asmlinkage __visible notrace struct pt_regs *sync_regs(struct pt_regs *eregs);
+asmlinkage __visible notrace
+struct bad_iret_stack *fixup_bad_iret(struct bad_iret_stack *s);
+void __init trap_init(void);
 #endif
 dotraplinkage void do_general_protection(struct pt_regs *regs, long error_code);
 dotraplinkage void do_page_fault(struct pt_regs *regs, unsigned long error_code);
diff --git a/arch/x86/include/asm/tsc.h b/arch/x86/include/asm/tsc.h
index eb5bbfeccb66..8a0c25c6bf09 100644
--- a/arch/x86/include/asm/tsc.h
+++ b/arch/x86/include/asm/tsc.h
@@ -35,6 +35,7 @@ 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/arch/x86/kernel/check.c b/arch/x86/kernel/check.c
index 1979a76bfadd..5136e6818da8 100644
--- a/arch/x86/kernel/check.c
+++ b/arch/x86/kernel/check.c
@@ -9,6 +9,7 @@
 #include <linux/memblock.h>
 
 #include <asm/proto.h>
+#include <asm/setup.h>
 
 /*
  * Some BIOSes seem to corrupt the low 64k of memory during events
@@ -136,7 +137,7 @@ void __init setup_bios_corruption_check(void)
 }
 
 
-void check_for_bios_corruption(void)
+static void check_for_bios_corruption(void)
 {
 	int i;
 	int corruption = 0;
diff --git a/arch/x86/kernel/crash.c b/arch/x86/kernel/crash.c
index f631a3f15587..c8b07d8ea5a2 100644
--- a/arch/x86/kernel/crash.c
+++ b/arch/x86/kernel/crash.c
@@ -37,6 +37,7 @@
 #include <asm/reboot.h>
 #include <asm/virtext.h>
 #include <asm/intel_pt.h>
+#include <asm/crash.h>
 
 /* Used while preparing memory map entries for second kernel */
 struct crash_memmap_data {
diff --git a/arch/x86/kernel/devicetree.c b/arch/x86/kernel/devicetree.c
index 7299dcbf8e85..8d85e00bb40a 100644
--- a/arch/x86/kernel/devicetree.c
+++ b/arch/x86/kernel/devicetree.c
@@ -23,6 +23,7 @@
 #include <asm/pci_x86.h>
 #include <asm/setup.h>
 #include <asm/i8259.h>
+#include <asm/prom.h>
 
 __initdata u64 initial_dtb;
 char __initdata cmd_line[COMMAND_LINE_SIZE];
diff --git a/arch/x86/kernel/jailhouse.c b/arch/x86/kernel/jailhouse.c
index 108c48d0d40e..1b2ee55a2dfb 100644
--- a/arch/x86/kernel/jailhouse.c
+++ b/arch/x86/kernel/jailhouse.c
@@ -19,6 +19,7 @@
 #include <asm/pci_x86.h>
 #include <asm/reboot.h>
 #include <asm/setup.h>
+#include <asm/jailhouse_para.h>
 
 static __initdata struct jailhouse_setup_data setup_data;
 static unsigned int precalibrated_tsc_khz;
diff --git a/arch/x86/kernel/process.c b/arch/x86/kernel/process.c
index 3c3ee8982577..b7cb5348f37f 100644
--- a/arch/x86/kernel/process.c
+++ b/arch/x86/kernel/process.c
@@ -22,6 +22,8 @@
 #include <linux/utsname.h>
 #include <linux/stackprotector.h>
 #include <linux/cpuidle.h>
+#include <linux/acpi.h>
+#include <linux/elf-randomize.h>
 #include <trace/events/power.h>
 #include <linux/hw_breakpoint.h>
 #include <asm/cpu.h>
@@ -39,6 +41,7 @@
 #include <asm/desc.h>
 #include <asm/prctl.h>
 #include <asm/spec-ctrl.h>
+#include <asm/proto.h>
 
 /*
  * per-CPU TSS segments. Threads are completely 'soft' on Linux,
diff --git a/arch/x86/kernel/quirks.c b/arch/x86/kernel/quirks.c
index 736348ead421..8451f38ad399 100644
--- a/arch/x86/kernel/quirks.c
+++ b/arch/x86/kernel/quirks.c
@@ -7,6 +7,7 @@
 #include <linux/irq.h>
 
 #include <asm/hpet.h>
+#include <asm/setup.h>
 
 #if defined(CONFIG_X86_IO_APIC) && defined(CONFIG_SMP) && defined(CONFIG_PCI)
 
diff --git a/arch/x86/kernel/tracepoint.c b/arch/x86/kernel/tracepoint.c
index 5bd30c442794..2e85f4dcf77b 100644
--- a/arch/x86/kernel/tracepoint.c
+++ b/arch/x86/kernel/tracepoint.c
@@ -10,6 +10,7 @@
 
 #include <asm/hw_irq.h>
 #include <asm/desc.h>
+#include <asm/trace/exceptions.h>
 
 DEFINE_STATIC_KEY_FALSE(trace_pagefault_key);
 
diff --git a/include/linux/ftrace.h b/include/linux/ftrace.h
index a397907e8d72..182d669cc918 100644
--- a/include/linux/ftrace.h
+++ b/include/linux/ftrace.h
@@ -420,6 +420,9 @@ enum {
 };
 
 void arch_ftrace_update_code(int command);
+void arch_ftrace_update_trampoline(struct ftrace_ops *ops);
+void *arch_ftrace_trampoline_func(struct ftrace_ops *ops, struct dyn_ftrace *rec);
+void arch_ftrace_trampoline_free(struct ftrace_ops *ops);
 
 struct ftrace_rec_iter;
 
diff --git a/include/linux/kexec.h b/include/linux/kexec.h
index 9e4e638fb505..53efedae3d5b 100644
--- a/include/linux/kexec.h
+++ b/include/linux/kexec.h
@@ -174,6 +174,7 @@ int kexec_purgatory_get_set_symbol(struct kimage *image, const char *name,
 				   bool get_value);
 void *kexec_purgatory_get_symbol_addr(struct kimage *image, const char *name);
 
+void * __weak arch_kexec_kernel_image_load(struct kimage *image);
 int __weak arch_kexec_apply_relocations_add(struct purgatory_info *pi,
 					    Elf_Shdr *section,
 					    const Elf_Shdr *relsec,
diff --git a/include/linux/of_fdt.h b/include/linux/of_fdt.h
index b9cd9ebdf9b9..a713e5d156d8 100644
--- a/include/linux/of_fdt.h
+++ b/include/linux/of_fdt.h
@@ -76,6 +76,7 @@ extern int early_init_dt_scan_memory(unsigned long node, const char *uname,
 extern int early_init_dt_scan_chosen_stdout(void);
 extern void early_init_fdt_scan_reserved_mem(void);
 extern void early_init_fdt_reserve_self(void);
+extern void __init early_init_dt_scan_chosen_arch(unsigned long node);
 extern void early_init_dt_add_memory_arch(u64 base, u64 size);
 extern int early_init_dt_mark_hotplug_memory_arch(u64 base, u64 size);
 extern int early_init_dt_reserve_memory_arch(phys_addr_t base, phys_addr_t size,
diff --git a/include/linux/ptrace.h b/include/linux/ptrace.h
index 6c2ffed907f5..a37d7c00da65 100644
--- a/include/linux/ptrace.h
+++ b/include/linux/ptrace.h
@@ -428,4 +428,5 @@ extern int task_current_syscall(struct task_struct *target, long *callno,
 				unsigned long args[6], unsigned int maxargs,
 				unsigned long *sp, unsigned long *pc);
 
+extern void sigaction_compat_abi(struct k_sigaction *act, struct k_sigaction *oact);
 #endif

^ permalink raw reply related	[flat|nested] 16+ messages in thread
end of thread, other threads:[~2018-11-23  7:05 UTC | newest]

Thread overview: 16+ messages (download: mbox.gz / follow: Atom feed)
-- links below jump to the message on this page --
2018-11-22  2:04 [PATCH] x86: fix -Wmissing-prototypes warning Yi Wang
2018-11-22  2:04 ` Yi Wang
2018-11-22  2:04 ` Yi Wang
2018-11-22  8:48 ` Ingo Molnar
2018-11-22  8:48 ` Ingo Molnar
2018-11-22  8:48   ` Ingo Molnar
2018-11-22  8:48   ` Ingo Molnar
2018-11-22 11:04   ` wang.yi59
2018-11-22 11:04     ` wang.yi59
2018-11-22 11:14     ` Ingo Molnar
2018-11-22 11:14       ` Ingo Molnar
2018-11-22 11:14       ` Ingo Molnar
2018-11-22 11:14     ` Ingo Molnar
2018-11-22 10:15 ` [tip:x86/cleanups] x86/headers: Fix " tip-bot for Yi Wang
2018-11-23  7:03   ` Ingo Molnar
2018-11-23  7:04 ` tip-bot for Yi Wang

This is an external index of several public inboxes,
see mirroring instructions on how to clone and mirror
all data and code used by this external index.