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dell-smbios: implement new function for finding DMI table 0xDA tokens

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Ultimately, the da_tokens table should not be exported from dell-smbios.
Currently, in some cases, dell-laptop accesses that table's members
directly, so implement a new function, dell_smbios_find_token(), which
returns a pointer to an entry inside the da_tokens table with the given
token ID (or NULL if it is not found).

Signed-off-by: Michał Kępień <kernel@kempniu.pl>
Reviewed-by: Pali Rohár <pali.rohar@gmail.com>
Signed-off-by: Darren Hart <dvhart@linux.intel.com>
This commit is contained in:
Michał Kępień 2016-01-22 15:27:22 +01:00 committed by Darren Hart
parent 92ebd0d1a8
commit 96f7ef90cc
2 changed files with 15 additions and 0 deletions
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13
drivers/platform/x86/dell-smbios.c
View File

@ -77,6 +77,19 @@ void dell_smbios_send_request(int class, int select)
} }
EXPORT_SYMBOL_GPL(dell_smbios_send_request); EXPORT_SYMBOL_GPL(dell_smbios_send_request);
struct calling_interface_token *dell_smbios_find_token(int tokenid)
{
int i;
for (i = 0; i < da_num_tokens; i++) {
if (da_tokens[i].tokenID == tokenid)
return &da_tokens[i];
}
return NULL;
}
EXPORT_SYMBOL_GPL(dell_smbios_find_token);
int find_token_id(int tokenid) int find_token_id(int tokenid)
{ {
int i; int i;

2
drivers/platform/x86/dell-smbios.h
View File

@ -42,6 +42,8 @@ void dell_smbios_clear_buffer(void);
void dell_smbios_release_buffer(void); void dell_smbios_release_buffer(void);
void dell_smbios_send_request(int class, int select); void dell_smbios_send_request(int class, int select);
struct calling_interface_token *dell_smbios_find_token(int tokenid);
int find_token_id(int tokenid); int find_token_id(int tokenid);
int find_token_location(int tokenid); int find_token_location(int tokenid);
#endif #endif