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mips: decompress: fix add missing prototypes

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Patch series "mips: address -Wmissing-prototypes warnings".

Address the -Wmissing-prototypes warnings that showed up in mips as the
last major architecture after my patch to enable the option everywhere.


This patch (of 20):

The mips decompressor has some string functions defined locally that are
not declared in the right place:

arch/mips/boot/compressed/dbg.c:12:13: error: no previous prototype for 'putc' [-Werror=missing-prototypes]
arch/mips/boot/compressed/dbg.c:16:6: error: no previous prototype for 'puts' [-Werror=missing-prototypes]
arch/mips/boot/compressed/dbg.c:26:6: error: no previous prototype for 'puthex' [-Werror=missing-prototypes]
arch/mips/boot/compressed/string.c:11:7: error: no previous prototype for 'memcpy' [-Werror=missing-prototypes]
arch/mips/boot/compressed/string.c:22:7: error: no previous prototype for 'memset' [-Werror=missing-prototypes]
arch/mips/boot/compressed/string.c:32:15: error: no previous prototype for 'memmove' [-Werror=missing-prototypes]
arch/mips/boot/compressed/decompress.c:43:6: error: no previous prototype for 'error' [-Werror=missing-prototypes]
arch/mips/boot/compressed/decompress.c:91:6: error: no previous prototype for 'decompress_kernel' [-Werror=missing-prototypes]

Include the string.h header where needed and add a decompress.h header to
have shared prototypes for the rest.

Link: https://lkml.kernel.org/r/20231204115710.2247097-1-arnd@kernel.org
Link: https://lkml.kernel.org/r/20231204115710.2247097-2-arnd@kernel.org
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Cc: Stephen Rothwell <sfr@rothwell.id.au>
Cc: Thomas Bogendoerfer <tsbogend@alpha.franken.de>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
This commit is contained in:
Arnd Bergmann 2023-12-04 12:56:51 +01:00 committed by Andrew Morton
parent 78af7920d0
commit 1b5e6f4ec0
4 changed files with 29 additions and 14 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

2
arch/mips/boot/compressed/dbg.c
View File

@ -9,6 +9,8 @@
#include <linux/compiler.h>
#include <linux/types.h>
#include "decompress.h"
void __weak putc(char c)
{
}

16
arch/mips/boot/compressed/decompress.c
View File

@ -19,6 +19,8 @@
#include <asm/unaligned.h>
#include <asm-generic/vmlinux.lds.h>
#include "decompress.h"
/*
* These two variables specify the free mem region
* that can be used for temporary malloc area
@ -26,20 +28,6 @@
unsigned long free_mem_ptr;
unsigned long free_mem_end_ptr;
/* The linker tells us where the image is. */
extern unsigned char __image_begin[], __image_end[];
/* debug interfaces */
#ifdef CONFIG_DEBUG_ZBOOT
extern void puts(const char *s);
extern void puthex(unsigned long long val);
#else
#define puts(s) do {} while (0)
#define puthex(val) do {} while (0)
#endif
extern char __appended_dtb[];
void error(char *x)
{
puts("\n\n");

24
arch/mips/boot/compressed/decompress.h Normal file
View File

@ -0,0 +1,24 @@
// SPDX-License-Identifier: GPL-2.0
#ifndef _DECOMPRESSOR_H
#define _DECOMPRESSOR_H
/* The linker tells us where the image is. */
extern unsigned char __image_begin[], __image_end[];
/* debug interfaces */
#ifdef CONFIG_DEBUG_ZBOOT
extern void putc(char c);
extern void puts(const char *s);
extern void puthex(unsigned long long val);
#else
#define putc(s) do {} while (0)
#define puts(s) do {} while (0)
#define puthex(val) do {} while (0)
#endif
extern char __appended_dtb[];
void error(char *x);
void decompress_kernel(unsigned long boot_heap_start);
#endif

1
arch/mips/boot/compressed/string.c
View File

@ -7,6 +7,7 @@
#include <linux/compiler_attributes.h>
#include <linux/types.h>
#include <asm/string.h>
void *memcpy(void *dest, const void *src, size_t n)
{