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authorAlexander Graf <agraf@suse.de>2016-08-19 01:23:22 +0200
committerBin Meng <bmeng.cn@gmail.com>2016-10-18 15:58:50 +0800
commit2b445e4d31940d512b3257f7398b794be710b8a9 (patch)
treed905011fee8bf0e83e6939c6450cae6461295ff8
parentd5a815327d2c257fbba108ff46974b1c1d12fd2a (diff)
x86: Move table csum into separate header
We need the checksum function without all the other table functionality soon, so let's split it out into its own header file. Signed-off-by: Alexander Graf <agraf@suse.de> Reviewed-by: Bin Meng <bmeng.cn@gmail.com> Reviewed-by: Simon Glass <sjg@chromium.org>
-rw-r--r--arch/x86/include/asm/tables.h2
-rw-r--r--arch/x86/lib/tables.c12
-rw-r--r--include/tables_csum.h22
3 files changed, 24 insertions, 12 deletions
diff --git a/arch/x86/include/asm/tables.h b/arch/x86/include/asm/tables.h
index ae9f0d0d626..81f98f27745 100644
--- a/arch/x86/include/asm/tables.h
+++ b/arch/x86/include/asm/tables.h
@@ -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
diff --git a/arch/x86/lib/tables.c b/arch/x86/lib/tables.c
index f92111e4c8a..9ee6b5e9249 100644
--- a/arch/x86/lib/tables.c
+++ b/arch/x86/lib/tables.c
@@ -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;
diff --git a/include/tables_csum.h b/include/tables_csum.h
new file mode 100644
index 00000000000..27d147b1643
--- /dev/null
+++ b/include/tables_csum.h
@@ -0,0 +1,22 @@
+/*
+ * Copyright (C) 2015, Bin Meng <bmeng.cn@gmail.com>
+ *
+ * SPDX-License-Identifier: GPL-2.0+
+ */
+
+#ifndef _TABLES_CSUM_H_
+#define _TABLES_CSUM_H_
+
+static inline 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;
+}
+
+#endif