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Subject[PATCH 08/14] dell-smbios: implement new function for finding DMI table 0xDA tokens
Date
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>
---
drivers/platform/x86/dell-smbios.c | 13 +++++++++++++
drivers/platform/x86/dell-smbios.h | 2 ++
2 files changed, 15 insertions(+)

diff --git a/drivers/platform/x86/dell-smbios.c b/drivers/platform/x86/dell-smbios.c
index 597a29f..83e35ed 100644
--- a/drivers/platform/x86/dell-smbios.c
+++ b/drivers/platform/x86/dell-smbios.c
@@ -59,6 +59,19 @@ void dell_smbios_release_buffer(void)
}
EXPORT_SYMBOL_GPL(dell_smbios_release_buffer);

+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 i;
diff --git a/drivers/platform/x86/dell-smbios.h b/drivers/platform/x86/dell-smbios.h
index 5ccc0ea..23f6e95 100644
--- a/drivers/platform/x86/dell-smbios.h
+++ b/drivers/platform/x86/dell-smbios.h
@@ -42,6 +42,8 @@ void dell_smbios_clear_buffer(void);
void dell_smbios_get_buffer(void);
void dell_smbios_release_buffer(void);

+struct calling_interface_token *dell_smbios_find_token(int tokenid);
+
int find_token_id(int tokenid);
int find_token_location(int tokenid);

--
1.7.10.4
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