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firmware: dmi: Add dmi_memdev_handle

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Add a utility function dmi_memdev_handle() which returns the DMI
handle associated with a given memory slot. This will allow kernel
drivers to iterate over the memory slots.

Signed-off-by: Jean Delvare <jdelvare@suse.de>
This commit is contained in:
Jean Delvare 2019-12-03 11:20:37 +01:00
parent 9e0afe3910
commit 7c2378800c
2 changed files with 18 additions and 0 deletions
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2
include/linux/dmi.h
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@ -114,6 +114,7 @@ extern bool dmi_match(enum dmi_field f, const char *str);
extern void dmi_memdev_name(u16 handle, const char **bank, const char **device);
extern u64 dmi_memdev_size(u16 handle);
extern u8 dmi_memdev_type(u16 handle);
extern u16 dmi_memdev_handle(int slot);
#else
@ -144,6 +145,7 @@ static inline void dmi_memdev_name(u16 handle, const char **bank,
const char **device) { }
static inline u64 dmi_memdev_size(u16 handle) { return ~0ul; }
static inline u8 dmi_memdev_type(u16 handle) { return 0x0; }
static inline u16 dmi_memdev_handle(int slot) { return 0xffff; }
static inline const struct dmi_system_id *
dmi_first_match(const struct dmi_system_id *list) { return NULL; }