From e7a19c5624c66afa8118b10cd59f87ee407646bc Mon Sep 17 00:00:00 2001 From: Jean Delvare Date: Mon, 30 Mar 2009 21:46:44 +0200 Subject: 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 Cc: Hans de Goede Cc: Matthew Garrett Cc: Roland Dreier --- drivers/firmware/dmi_scan.c | 18 +++++++++++------- drivers/hwmon/fschmd.c | 4 ++-- drivers/platform/x86/dell-laptop.c | 4 ++-- drivers/watchdog/hpwdt.c | 4 ++-- include/linux/dmi.h | 7 ++++--- 5 files changed, 21 insertions(+), 16 deletions(-) diff --git a/drivers/firmware/dmi_scan.c b/drivers/firmware/dmi_scan.c index 8f0f7c449305..5f1b5400d96a 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; diff --git a/drivers/hwmon/fschmd.c b/drivers/hwmon/fschmd.c index d07f4ef75092..b557f2ebd9ae 100644 --- a/drivers/hwmon/fschmd.c +++ b/drivers/hwmon/fschmd.c @@ -856,7 +856,7 @@ static struct file_operations watchdog_fops = { /* DMI decode routine to read voltage scaling factors from special DMI tables, which are available on FSC machines with an fscher or later chip. */ -static void fschmd_dmi_decode(const struct dmi_header *header) +static void fschmd_dmi_decode(const struct dmi_header *header, void *dummy) { int i, mult[3] = { 0 }, offset[3] = { 0 }, vref = 0, found = 0; @@ -991,7 +991,7 @@ static int fschmd_probe(struct i2c_client *client, /* Read the special DMI table for fscher and newer chips */ if ((kind == fscher || kind >= fschrc) && dmi_vref == -1) { - dmi_walk(fschmd_dmi_decode); + dmi_walk(fschmd_dmi_decode, NULL); if (dmi_vref == -1) { dev_warn(&client->dev, "Couldn't get voltage scaling factors from " diff --git a/drivers/platform/x86/dell-laptop.c b/drivers/platform/x86/dell-laptop.c index 16e11c2ee19a..af9f43021172 100644 --- a/drivers/platform/x86/dell-laptop.c +++ b/drivers/platform/x86/dell-laptop.c @@ -103,7 +103,7 @@ static void parse_da_table(const struct dmi_header *dm) da_num_tokens += tokens; } -static void find_tokens(const struct dmi_header *dm) +static void find_tokens(const struct dmi_header *dm, void *dummy) { switch (dm->type) { case 0xd4: /* Indexed IO */ @@ -356,7 +356,7 @@ static int __init dell_init(void) if (!dmi_check_system(dell_device_table)) return -ENODEV; - dmi_walk(find_tokens); + dmi_walk(find_tokens, NULL); if (!da_tokens) { printk(KERN_INFO "dell-laptop: Unable to find dmi tokens\n"); diff --git a/drivers/watchdog/hpwdt.c b/drivers/watchdog/hpwdt.c index 6cf155d6b350..3137361ccbfe 100644 --- a/drivers/watchdog/hpwdt.c +++ b/drivers/watchdog/hpwdt.c @@ -380,7 +380,7 @@ asm(".text \n\t" * This function checks whether or not a SMBIOS/DMI record is * the 64bit CRU info or not */ -static void __devinit dmi_find_cru(const struct dmi_header *dm) +static void __devinit dmi_find_cru(const struct dmi_header *dm, void *dummy) { struct smbios_cru64_info *smbios_cru64_ptr; unsigned long cru_physical_address; @@ -403,7 +403,7 @@ static int __devinit detect_cru_service(void) { cru_rom_addr = NULL; - dmi_walk(dmi_find_cru); + dmi_walk(dmi_find_cru, NULL); /* if cru_rom_addr has been set then we found a CRU service */ return ((cru_rom_addr != NULL) ? 0 : -ENODEV); diff --git a/include/linux/dmi.h b/include/linux/dmi.h index d741b9ceb0e0..bb5489c82c99 100644 --- a/include/linux/dmi.h +++ b/include/linux/dmi.h @@ -47,7 +47,8 @@ extern int dmi_get_year(int field); extern int dmi_name_in_vendors(const char *str); extern int dmi_name_in_serial(const char *str); extern int dmi_available; -extern int dmi_walk(void (*decode)(const struct dmi_header *)); +extern int dmi_walk(void (*decode)(const struct dmi_header *, void *), + void *private_data); extern bool dmi_match(enum dmi_field f, const char *str); #else @@ -61,8 +62,8 @@ static inline int dmi_get_year(int year) { return 0; } static inline int dmi_name_in_vendors(const char *s) { return 0; } static inline int dmi_name_in_serial(const char *s) { return 0; } #define dmi_available 0 -static inline int dmi_walk(void (*decode)(const struct dmi_header *)) - { return -1; } +static inline int dmi_walk(void (*decode)(const struct dmi_header *, void *), + void *private_data) { return -1; } static inline bool dmi_match(enum dmi_field f, const char *str) { return false; } static inline const struct dmi_system_id * -- cgit v1.2.3