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Add an ARRAY_SIZE() macro which returns the size of an array, regardless

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of the data types of the individual array elements.

The macro is defined in lib.h, so code which uses it must include lib.h.

Signed-off-by: Uwe Hermann <uwe@hermann-uwe.de>
Acked-by: Carl-Daniel Hailfinger <c-d.hailfinger.devel.2006@gmx.net>



git-svn-id: svn://coreboot.org/repository/LinuxBIOSv3@413 f3766cd6-281f-0410-b1cd-43a5c92072e9
This commit is contained in:
Uwe Hermann 2007-06-29 14:36:03 +00:00
parent 9b9e190491
commit c81aa82942
5 changed files with 13 additions and 8 deletions
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3
arch/x86/linuxbios_table.c
View file

@ -25,6 +25,7 @@
#include <device/device.h> #include <device/device.h>
#include <tables.h> #include <tables.h>
#include <mc146818rtc.h> #include <mc146818rtc.h>
#include <lib.h>
//#include <cpu/cpu.h> //#include <cpu/cpu.h>
//#include <pirq_routing.h> //#include <pirq_routing.h>
//#include <smp/mpspec.h> //#include <smp/mpspec.h>
@ -159,7 +160,7 @@ void lb_strings(struct lb_header *header)
{ LB_TAG_ASSEMBLER, (const u8 *)LINUXBIOS_ASSEMBLER }, { LB_TAG_ASSEMBLER, (const u8 *)LINUXBIOS_ASSEMBLER },
}; };
unsigned int i; unsigned int i;
for(i = 0; i < sizeof(strings)/sizeof(strings[0]); i++) { for(i = 0; i < ARRAY_SIZE(strings); i++) {
struct lb_string *rec; struct lb_string *rec;
size_t len; size_t len;
rec = (struct lb_string *)lb_new_record(header); rec = (struct lb_string *)lb_new_record(header);

6
include/lib.h
View file

@ -21,6 +21,12 @@
#ifndef LIB_H #ifndef LIB_H
#define LIB_H #define LIB_H
/**
* Return the size of a given array, no matter of which data type
* the individual array elements are.
*/
#define ARRAY_SIZE(a) (sizeof(a) / sizeof((a)[0]))
int log2(unsigned int n); int log2(unsigned int n);
void udelay(unsigned int usecs); void udelay(unsigned int usecs);

2
mainboard/artecgroup/dbe61/initram.c
View file

@ -120,7 +120,7 @@ struct wmsr {
static void dbe61_msr_init(void) static void dbe61_msr_init(void)
{ {
int i; int i;
for(i = 0; i < sizeof(dbe61_msr)/sizeof(dbe61_msr[0]); i++) for (i = 0; i < ARRAY_SIZE(dbe61_msr); i++)
wrmsr(dbe61_msr[i].reg, dbe61_msr[i].msr); wrmsr(dbe61_msr[i].reg, dbe61_msr[i].msr);
} }

4
southbridge/amd/cs5536/cs5536.c
View file

@ -93,8 +93,6 @@ struct FLASH_DEVICE FlashInitTable[] = {
{FLASH_TYPE_NONE, 0, 0}, /* CS3, or Flash Device 3 */ {FLASH_TYPE_NONE, 0, 0}, /* CS3, or Flash Device 3 */
}; };
#define FlashInitTableLen (sizeof(FlashInitTable)/sizeof(FlashInitTable[0]))
u32 FlashPort[] = { u32 FlashPort[] = {
MDD_LBAR_FLSH0, MDD_LBAR_FLSH0,
MDD_LBAR_FLSH1, MDD_LBAR_FLSH1,
@ -149,7 +147,7 @@ static void chipset_flash_setup(void)
int numEnabled = 0; int numEnabled = 0;
printk(BIOS_DEBUG, "chipset_flash_setup: Start\n"); printk(BIOS_DEBUG, "chipset_flash_setup: Start\n");
for (i = 0; i < FlashInitTableLen; i++) { for (i = 0; i < ARRAY_SIZE(FlashInitTable); i++) {
if (FlashInitTable[i].fType != FLASH_TYPE_NONE) { if (FlashInitTable[i].fType != FLASH_TYPE_NONE) {
printk(BIOS_DEBUG, "Enable CS%d\n", i); printk(BIOS_DEBUG, "Enable CS%d\n", i);
/* we need to configure the memory/IO mask */ /* we need to configure the memory/IO mask */

6
superio/winbond/w83627hf/superio.c
View file

@ -22,6 +22,7 @@
*/ */
#include <io.h> #include <io.h>
#include <lib.h>
#include <device/device.h> #include <device/device.h>
#include <device/pnp.h> #include <device/pnp.h>
#include <console.h> #include <console.h>
@ -99,7 +100,7 @@ static void init_hwm(unsigned long base)
}; };
for(i = 0; i< sizeof(hwm_reg_values)/sizeof(hwm_reg_values[0]); i+=3 ) { for (i = 0; i < ARRAY_SIZE(hwm_reg_values); i += 3) {
reg = hwm_reg_values[i]; reg = hwm_reg_values[i];
value = pnp_read_index(base, reg); value = pnp_read_index(base, reg);
value &= 0xff & hwm_reg_values[i+1]; value &= 0xff & hwm_reg_values[i+1];
@ -207,8 +208,7 @@ static struct pnp_info pnp_dev_info[] = {
static void phase2_setup_scan_bus(struct device *dev) static void phase2_setup_scan_bus(struct device *dev)
{ {
pnp_enable_devices(dev, &ops, pnp_enable_devices(dev, &ops, ARRAY_SIZE(pnp_dev_info), pnp_dev_info);
sizeof(pnp_dev_info)/sizeof(pnp_dev_info[0]), pnp_dev_info);
} }
static struct device_operations ops = { static struct device_operations ops = {