Commit 1befb38b authored by Alexander Graf's avatar Alexander Graf
Browse files

x86: Move table csum into separate file



We need the checksum function without all the other table functionality
soon, so let's split it out into its own C file.
Signed-off-by: default avatarAlexander Graf <agraf@suse.de>
Reviewed-by: default avatarSimon Glass <sjg@chromium.org>
Reviewed-by: default avatarBin Meng <bmeng.cn@gmail.com>
parent 8f661a5b
......@@ -7,6 +7,8 @@
#ifndef _X86_TABLES_H_
#define _X86_TABLES_H_
#include <tables_csum.h>
/*
* All x86 tables happen to like the address range from 0xf0000 to 0x100000.
* We use 0xf0000 as the starting address to store those tables, including
......
......@@ -38,18 +38,6 @@ static table_write table_write_funcs[] = {
#endif
};
u8 table_compute_checksum(void *v, int len)
{
u8 *bytes = v;
u8 checksum = 0;
int i;
for (i = 0; i < len; i++)
checksum -= bytes[i];
return checksum;
}
void table_fill_string(char *dest, const char *src, size_t n, char pad)
{
int start, len;
......
/*
* Copyright (C) 2015, Bin Meng <bmeng.cn@gmail.com>
*
* SPDX-License-Identifier: GPL-2.0+
*/
#ifndef _TABLES_CSUM_H_
#define _TABLES_CSUM_H_
u8 table_compute_checksum(void *v, int len);
#endif
......@@ -73,6 +73,7 @@ obj-y += linux_string.o
obj-y += membuff.o
obj-$(CONFIG_REGEX) += slre.o
obj-y += string.o
obj-y += tables_csum.o
obj-y += time.o
obj-$(CONFIG_TRACE) += trace.o
obj-$(CONFIG_LIB_UUID) += uuid.o
......
/*
* Copyright (C) 2015, Bin Meng <bmeng.cn@gmail.com>
*
* SPDX-License-Identifier: GPL-2.0+
*/
#include <common.h>
#include <linux/ctype.h>
u8 table_compute_checksum(void *v, int len)
{
u8 *bytes = v;
u8 checksum = 0;
int i;
for (i = 0; i < len; i++)
checksum -= bytes[i];
return checksum;
}
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