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dmi: Let dmi_walk() users pass private data

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At the moment, dmi_walk() lacks flexibility, users can't pass data to
the callback function. Add a pointer for private data to make this
function more flexible.

Signed-off-by: Jean Delvare <[email protected]>
Cc: Hans de Goede <[email protected]>
Cc: Matthew Garrett <[email protected]>
Cc: Roland Dreier <[email protected]>
This commit is contained in:
Jean Delvare 2009-03-30 21:46:44 +02:00
commit e7a19c5624
5 changed files with 21 additions and 16 deletions
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18
drivers/firmware/dmi_scan.c
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@ -68,7 +68,8 @@ static char * __init dmi_string(const struct dmi_header *dm, u8 s)
* pointing to completely the wrong place for example
*/
static void dmi_table(u8 *buf, int len, int num,
void (*decode)(const struct dmi_header *))
void (*decode)(const struct dmi_header *, void *),
void *private_data)
{
u8 *data = buf;
int i = 0;
@ -89,7 +90,7 @@ static void dmi_table(u8 *buf, int len, int num,
while ((data - buf < len - 1) && (data[0] || data[1]))
data++;
if (data - buf < len - 1)
decode(dm);
decode(dm, private_data);
data += 2;
i++;
}
@ -99,7 +100,8 @@ static u32 dmi_base;
static u16 dmi_len;
static u16 dmi_num;
static int __init dmi_walk_early(void (*decode)(const struct dmi_header *))
static int __init dmi_walk_early(void (*decode)(const struct dmi_header *,
void *))
{
u8 *buf;
@ -107,7 +109,7 @@ static int __init dmi_walk_early(void (*decode)(const struct dmi_header *))
if (buf == NULL)
return -1;
dmi_table(buf, dmi_len, dmi_num, decode);
dmi_table(buf, dmi_len, dmi_num, decode, NULL);
dmi_iounmap(buf, dmi_len);
return 0;
@ -295,7 +297,7 @@ static void __init dmi_save_extended_devices(const struct dmi_header *dm)
* and machine entries. For 2.5 we should pull the smbus controller info
* out of here.
*/
static void __init dmi_decode(const struct dmi_header *dm)
static void __init dmi_decode(const struct dmi_header *dm, void *dummy)
{
switch(dm->type) {
case 0: /* BIOS Information */
@ -598,10 +600,12 @@ int dmi_get_year(int field)
/**
* dmi_walk - Walk the DMI table and get called back for every record
* @decode: Callback function
* @private_data: Private data to be passed to the callback function
*
* Returns -1 when the DMI table can't be reached, 0 on success.
*/
int dmi_walk(void (*decode)(const struct dmi_header *))
int dmi_walk(void (*decode)(const struct dmi_header *, void *),
void *private_data)
{
u8 *buf;
@ -612,7 +616,7 @@ int dmi_walk(void (*decode)(const struct dmi_header *))
if (buf == NULL)
return -1;
dmi_table(buf, dmi_len, dmi_num, decode);
dmi_table(buf, dmi_len, dmi_num, decode, private_data);
iounmap(buf);
return 0;