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ARM: 9311/1: decompressor: move function prototypes to misc.h

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A number of prototypes are missing for the decompressor, some
of them are in the .c files that contain the callers, but are
invisible at the function definition:

arch/arm/boot/compressed/misc.c:129:17: error: no previous prototype for '__div0' [-Werror=missing-prototypes]
arch/arm/boot/compressed/misc.c:138:1: error: no previous prototype for 'decompress_kernel' [-Werror=missing-prototypes]
arch/arm/boot/compressed/misc.c:163:6: error: no previous prototype for 'fortify_panic' [-Werror=missing-prototypes]
arch/arm/boot/compressed/decompress.c:63:5: error: no previous prototype for 'do_decompress' [-Werror=missing-prototypes]
arch/arm/boot/compressed/fdt_check_mem_start.c:63:10: error: no previous prototype for 'fdt_check_mem_start' [-Werror=missing-prototypes]

Move these all to misc.h so they are visible by the callee as well.

Reviewed-by: Kees Cook <keescook@chromium.org>
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Signed-off-by: Russell King (Oracle) <rmk+kernel@armlinux.org.uk>
This commit is contained in:
Arnd Bergmann 2023-06-02 19:29:01 +01:00 committed by Russell King (Oracle)
parent c9a1d4f672
commit 9d1f3aa63c
4 changed files with 13 additions and 6 deletions
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1
arch/arm/boot/compressed/atags_to_fdt.c
View File

@ -2,6 +2,7 @@
#include <linux/libfdt_env.h>
#include <asm/setup.h>
#include <libfdt.h>
#include "misc.h"
#if defined(CONFIG_ARM_ATAG_DTB_COMPAT_CMDLINE_EXTEND)
#define do_extend_cmdline 1

1
arch/arm/boot/compressed/fdt_check_mem_start.c
View File

@ -3,6 +3,7 @@
#include <linux/kernel.h>
#include <linux/libfdt.h>
#include <linux/sizes.h>
#include "misc.h"
static const void *get_prop(const void *fdt, const char *node_path,
const char *property, int minlen)

6
arch/arm/boot/compressed/misc.c
View File

@ -103,9 +103,6 @@ static void putstr(const char *ptr)
/*
* gzip declarations
*/
extern char input_data[];
extern char input_data_end[];
unsigned char *output_data;
unsigned long free_mem_ptr;
@ -131,9 +128,6 @@ asmlinkage void __div0(void)
error("Attempting division by 0!");
}
extern int do_decompress(u8 *input, int len, u8 *output, void (*error)(char *x));
void
decompress_kernel(unsigned long output_start, unsigned long free_mem_ptr_p,
unsigned long free_mem_ptr_end_p,

11
arch/arm/boot/compressed/misc.h
View File

@ -6,5 +6,16 @@
void error(char *x) __noreturn;
extern unsigned long free_mem_ptr;
extern unsigned long free_mem_end_ptr;
void __div0(void);
void
decompress_kernel(unsigned long output_start, unsigned long free_mem_ptr_p,
unsigned long free_mem_ptr_end_p, int arch_id);
void fortify_panic(const char *name);
int atags_to_fdt(void *atag_list, void *fdt, int total_space);
uint32_t fdt_check_mem_start(uint32_t mem_start, const void *fdt);
int do_decompress(u8 *input, int len, u8 *output, void (*error)(char *x));
extern char input_data[];
extern char input_data_end[];
#endif