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ARM: 9310/1: xip-kernel: add __inflate_kernel_data prototype

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The kernel .data decompression is called from assembler, so it does
not need a prototype, but adding one avoids this W=1 warning:

arch/arm/kernel/head-inflate-data.c:35:12: error: no previous prototype for '__inflate_kernel_data' [-Werror=missing-prototypes]

The same file contains a few extern declarations for assembler
symbols, move those into the header as well for consistency.

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 19:29:02 +01:00 committed by Russell King (Oracle)
parent be0796b07b
commit c9a1d4f672
2 changed files with 8 additions and 4 deletions
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5
arch/arm/kernel/head-inflate-data.c
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@ -8,16 +8,13 @@
#include <linux/init.h>
#include <linux/zutil.h>
#include "head.h"
/* for struct inflate_state */
#include "../../../lib/zlib_inflate/inftrees.h"
#include "../../../lib/zlib_inflate/inflate.h"
#include "../../../lib/zlib_inflate/infutil.h"
extern char __data_loc[];
extern char _edata_loc[];
extern char _sdata[];
/*
* This code is called very early during the boot process to decompress
* the .data segment stored compressed in ROM. Therefore none of the global

7
arch/arm/kernel/head.h Normal file
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@ -0,0 +1,7 @@
// SPDX-License-Identifier: GPL-2.0-only
extern char __data_loc[];
extern char _edata_loc[];
extern char _sdata[];
int __init __inflate_kernel_data(void);