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authorJean Delvare <khali@linux-fr.org>2009-03-30 21:46:44 +0200
committerJean Delvare <khali@linux-fr.org>2009-03-30 21:46:44 +0200
commite7a19c5624c66afa8118b10cd59f87ee407646bc (patch)
tree4e70f99aa84cdd18f13c673980afebe4a268359e /drivers/firmware/dmi_scan.c
parentec19920944246b4686c7772a58507a20c361dc9d (diff)
dmi: Let dmi_walk() users pass private data
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 <khali@linux-fr.org> Cc: Hans de Goede <hdegoede@redhat.com> Cc: Matthew Garrett <mjg@redhat.com> Cc: Roland Dreier <rolandd@cisco.com>
Diffstat (limited to 'drivers/firmware/dmi_scan.c')
-rw-r--r--drivers/firmware/dmi_scan.c18
1 files changed, 11 insertions, 7 deletions
diff --git a/drivers/firmware/dmi_scan.c b/drivers/firmware/dmi_scan.c
index 8f0f7c44930..5f1b5400d96 100644
--- a/drivers/firmware/dmi_scan.c
+++ b/drivers/firmware/dmi_scan.c
@@ -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;