Commit c718a0ba authored by Bibo Mao's avatar Bibo Mao Committed by Huacai Chen
Browse files

LoongArch: Fix some build warnings with W=1 



There are some building warnings when building LoongArch kernel with W=1
as following, this patch fixes them.

arch/loongarch/kernel/acpi.c:284:13: warning: no previous prototype for ‘acpi_numa_arch_fixup’ [-Wmissing-prototypes]
  284 | void __init acpi_numa_arch_fixup(void) {}
      |             ^~~~~~~~~~~~~~~~~~~~
arch/loongarch/kernel/time.c:32:13: warning: no previous prototype for ‘constant_timer_interrupt’ [-Wmissing-prototypes]
   32 | irqreturn_t constant_timer_interrupt(int irq, void *data)
      |             ^~~~~~~~~~~~~~~~~~~~~~~~
arch/loongarch/kernel/traps.c:496:25: warning: no previous prototype for 'do_fpe' [-Wmissing-prototypes]
  496 | asmlinkage void noinstr do_fpe(struct pt_regs *regs
      |                         ^~~~~~
arch/loongarch/kernel/traps.c:813:22: warning: variable ‘opcode’ set but not used [-Wunused-but-set-variable]
  813 |         unsigned int opcode;
      |                      ^~~~~~
arch/loongarch/kernel/signal.c:895:14: warning: no previous prototype for ‘get_sigframe’ [-Wmissing-prototypes]
  895 | void __user *get_sigframe(struct ksignal *ksig, struct pt_regs *regs,
      |              ^~~~~~~~~~~~
arch/loongarch/kernel/syscall.c:21:40: warning: initialized field overwritten [-Woverride-init]
   21 | #define __SYSCALL(nr, call)     [nr] = (call),
      |                                        ^
arch/loongarch/kernel/syscall.c:40:14: warning: no previous prototype for ‘do_syscall’ [-Wmissing-prototypes]
   40 | void noinstr do_syscall(struct pt_regs *regs)
      |              ^~~~~~~~~~
arch/loongarch/kernel/smp.c:502:17: warning: no previous prototype for ‘start_secondary’ [-Wmissing-prototypes]
  502 | asmlinkage void start_secondary(void)
      |                 ^~~~~~~~~~~~~~~
arch/loongarch/kernel/process.c:309:15: warning: no previous prototype for ‘arch_align_stack’ [-Wmissing-prototypes]
  309 | unsigned long arch_align_stack(unsigned long sp)
      |               ^~~~~~~~~~~~~~~~
arch/loongarch/kernel/topology.c:13:5: warning: no previous prototype for ‘arch_register_cpu’ [-Wmissing-prototypes]
   13 | int arch_register_cpu(int cpu)
      |     ^~~~~~~~~~~~~~~~~
arch/loongarch/kernel/topology.c:27:6: warning: no previous prototype for ‘arch_unregister_cpu’ [-Wmissing-prototypes]
   27 | void arch_unregister_cpu(int cpu)
      |      ^~~~~~~~~~~~~~~~~~~
arch/loongarch/kernel/module-sections.c:103:5: warning: no previous prototype for ‘module_frob_arch_sections’ [-Wmissing-prototypes]
  103 | int module_frob_arch_sections(Elf_Ehdr *ehdr, Elf_Shdr *sechdrs,
      |     ^~~~~~~~~~~~~~~~~~~~~~~~~
arch/loongarch/mm/hugetlbpage.c:56:5: warning: no previous prototype for ‘is_aligned_hugepage_range’ [-Wmissing-prototypes]
   56 | int is_aligned_hugepage_range(unsigned long addr, unsigned long len)
      |     ^~~~~~~~~~~~~~~~~~~~~~~~~

Signed-off-by: default avatarBibo Mao <maobibo@loongson.cn>
Signed-off-by: default avatarHuacai Chen <chenhuacai@loongson.cn>
parent 68ffa230

arch/loongarch/include/asm/exception.h

0 → 100644
+45 −0
Original line number Diff line number Diff line 
/* SPDX-License-Identifier: GPL-2.0-only */



#ifndef __ASM_EXCEPTION_H

#define __ASM_EXCEPTION_H



#include <asm/ptrace.h>

#include <linux/kprobes.h>



void show_registers(struct pt_regs *regs);



asmlinkage void cache_parity_error(void);

asmlinkage void noinstr do_ade(struct pt_regs *regs);

asmlinkage void noinstr do_ale(struct pt_regs *regs);

asmlinkage void noinstr do_bce(struct pt_regs *regs);

asmlinkage void noinstr do_bp(struct pt_regs *regs);

asmlinkage void noinstr do_ri(struct pt_regs *regs);

asmlinkage void noinstr do_fpu(struct pt_regs *regs);

asmlinkage void noinstr do_fpe(struct pt_regs *regs, unsigned long fcsr);

asmlinkage void noinstr do_lsx(struct pt_regs *regs);

asmlinkage void noinstr do_lasx(struct pt_regs *regs);

asmlinkage void noinstr do_lbt(struct pt_regs *regs);

asmlinkage void noinstr do_watch(struct pt_regs *regs);

asmlinkage void noinstr do_syscall(struct pt_regs *regs);

asmlinkage void noinstr do_reserved(struct pt_regs *regs);

asmlinkage void noinstr do_vint(struct pt_regs *regs, unsigned long sp);

asmlinkage void __kprobes do_page_fault(struct pt_regs *regs,

				unsigned long write, unsigned long address);



asmlinkage void handle_ade(void);

asmlinkage void handle_ale(void);

asmlinkage void handle_bce(void);

asmlinkage void handle_sys(void);

asmlinkage void handle_bp(void);

asmlinkage void handle_ri(void);

asmlinkage void handle_fpu(void);

asmlinkage void handle_fpe(void);

asmlinkage void handle_lsx(void);

asmlinkage void handle_lasx(void);

asmlinkage void handle_lbt(void);

asmlinkage void handle_watch(void);

asmlinkage void handle_reserved(void);

asmlinkage void handle_vint(void);

asmlinkage void noinstr handle_loongarch_irq(struct pt_regs *regs);



#endif	/* __ASM_EXCEPTION_H */

arch/loongarch/include/asm/smp.h

+1 −0
Original line number Diff line number Diff line
@@ -70,6 +70,7 @@ struct secondary_data { 
extern struct secondary_data cpuboot_data;



extern asmlinkage void smpboot_entry(void);

extern asmlinkage void start_secondary(void);



extern void calculate_cpu_foreign_map(void);

arch/loongarch/kernel/Makefile

+4 −0
Original line number Diff line number Diff line
@@ -19,6 +19,10 @@ obj-$(CONFIG_CPU_HAS_LBT) += lbt.o 


obj-$(CONFIG_ARCH_STRICT_ALIGN)	+= unaligned.o



CFLAGS_module.o		+= $(call cc-option,-Wno-override-init,)

CFLAGS_syscall.o	+= $(call cc-option,-Wno-override-init,)

CFLAGS_perf_event.o	+= $(call cc-option,-Wno-override-init,)



ifdef CONFIG_FUNCTION_TRACER

  ifndef CONFIG_DYNAMIC_FTRACE

    obj-y += mcount.o ftrace.o

arch/loongarch/kernel/acpi.c

+0 −1
Original line number Diff line number Diff line
@@ -281,7 +281,6 @@ acpi_numa_processor_affinity_init(struct acpi_srat_cpu_affinity *pa) 
	pr_info("SRAT: PXM %u -> CPU 0x%02x -> Node %u\n", pxm, pa->apic_id, node);

}



void __init acpi_numa_arch_fixup(void) {}

#endif



void __init arch_reserve_mem_area(acpi_physical_address addr, size_t size)

arch/loongarch/kernel/module-sections.c

+1 −0
Original line number Diff line number Diff line
@@ -6,6 +6,7 @@ 
#include <linux/elf.h>

#include <linux/kernel.h>

#include <linux/module.h>

#include <linux/moduleloader.h>

#include <linux/ftrace.h>



Elf_Addr module_emit_got_entry(struct module *mod, Elf_Shdr *sechdrs, Elf_Addr val)