Commit ffaee272 authored by Paul Walmsley's avatar Paul Walmsley
Browse files

riscv: add prototypes for assembly language functions from head.S 



Add prototypes for assembly language functions defined in head.S,
and include these prototypes into C source files that call those
functions.

This patch resolves the following warnings from sparse:

arch/riscv/kernel/setup.c:39:10: warning: symbol 'hart_lottery' was not declared. Should it be static?
arch/riscv/kernel/setup.c:42:13: warning: symbol 'parse_dtb' was not declared. Should it be static?
arch/riscv/kernel/smpboot.c:33:6: warning: symbol '__cpu_up_stack_pointer' was not declared. Should it be static?
arch/riscv/kernel/smpboot.c:34:6: warning: symbol '__cpu_up_task_pointer' was not declared. Should it be static?
arch/riscv/mm/fault.c:25:17: warning: symbol 'do_page_fault' was not declared. Should it be static?

This change should have no functional impact.

Signed-off-by: default avatarPaul Walmsley <paul.walmsley@sifive.com>
parent d6d5df1d

arch/riscv/kernel/head.h

0 → 100644
+21 −0
Original line number Diff line number Diff line 
/* SPDX-License-Identifier: GPL-2.0 */

/*

 * Copyright (C) 2019 SiFive, Inc.

 */

#ifndef __ASM_HEAD_H

#define __ASM_HEAD_H



#include <linux/linkage.h>

#include <linux/init.h>



extern atomic_t hart_lottery;



asmlinkage void do_page_fault(struct pt_regs *regs);

asmlinkage void __init setup_vm(uintptr_t dtb_pa);



extern void *__cpu_up_stack_pointer[];

extern void *__cpu_up_task_pointer[];



void __init parse_dtb(void);



#endif /* __ASM_HEAD_H */

arch/riscv/kernel/setup.c

+2 −0
Original line number Diff line number Diff line
@@ -24,6 +24,8 @@ 
#include <asm/tlbflush.h>

#include <asm/thread_info.h>



#include "head.h"



#ifdef CONFIG_DUMMY_CONSOLE

struct screen_info screen_info = {

	.orig_video_lines	= 30,

arch/riscv/kernel/smpboot.c

+2 −0
Original line number Diff line number Diff line
@@ -30,6 +30,8 @@ 
#include <asm/sections.h>

#include <asm/sbi.h>



#include "head.h"



void *__cpu_up_stack_pointer[NR_CPUS];

void *__cpu_up_task_pointer[NR_CPUS];

static DECLARE_COMPLETION(cpu_running);

arch/riscv/mm/fault.c

+2 −0
Original line number Diff line number Diff line
@@ -18,6 +18,8 @@ 
#include <asm/ptrace.h>

#include <asm/tlbflush.h>



#include "../kernel/head.h"



/*

 * This routine handles page faults.  It determines the address and the

 * problem, and then passes it off to one of the appropriate routines.

arch/riscv/mm/init.c

+2 −0
Original line number Diff line number Diff line
@@ -19,6 +19,8 @@ 
#include <asm/pgtable.h>

#include <asm/io.h>



#include "../kernel/head.h"



unsigned long empty_zero_page[PAGE_SIZE / sizeof(unsigned long)]

							__page_aligned_bss;

EXPORT_SYMBOL(empty_zero_page);

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