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-rw-r--r--drivers/firmware/dmi_scan.c16
-rw-r--r--include/linux/dmi.h2
2 files changed, 18 insertions, 0 deletions
diff --git a/drivers/firmware/dmi_scan.c b/drivers/firmware/dmi_scan.c
index 6f28e515fdc0..2045566d622f 100644
--- a/drivers/firmware/dmi_scan.c
+++ b/drivers/firmware/dmi_scan.c
@@ -1151,3 +1151,19 @@ u8 dmi_memdev_type(u16 handle)
return 0x0; /* Not a valid value */
}
EXPORT_SYMBOL_GPL(dmi_memdev_type);
+
+/**
+ * dmi_memdev_handle - get the DMI handle of a memory slot
+ * @slot: slot number
+ *
+ * Return the DMI handle associated with a given memory slot, or %0xFFFF
+ * if there is no such slot.
+ */
+u16 dmi_memdev_handle(int slot)
+{
+ if (dmi_memdev && slot >= 0 && slot < dmi_memdev_nr)
+ return dmi_memdev[slot].handle;
+
+ return 0xffff; /* Not a valid value */
+}
+EXPORT_SYMBOL_GPL(dmi_memdev_handle);
diff --git a/include/linux/dmi.h b/include/linux/dmi.h
index 13a48b167e2d..927f8a8b7a1d 100644
--- a/include/linux/dmi.h
+++ b/include/linux/dmi.h
@@ -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; }