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-rw-r--r--src/include/device/device.h13
1 files changed, 13 insertions, 0 deletions
diff --git a/src/include/device/device.h b/src/include/device/device.h
index a33702a234..4983b486a4 100644
--- a/src/include/device/device.h
+++ b/src/include/device/device.h
@@ -207,6 +207,19 @@ DEVTREE_CONST struct device *dev_find_path(
struct device *dev_find_lapic(unsigned int apic_id);
int dev_count_cpu(void);
+/*
+ * Signature for matching function that is used by dev_find_matching_device_on_bus() to decide
+ * if the device being considered is the one that matches the caller's criteria. This function
+ * is supposed to return true if the provided device matches the criteria, else false.
+ */
+typedef bool (*match_device_fn)(DEVTREE_CONST struct device *dev);
+/*
+ * Returns the first device on the bus that the match_device_fn returns true for. If no such
+ * device is found, it returns NULL.
+ */
+DEVTREE_CONST struct device *dev_find_matching_device_on_bus(const struct bus *bus,
+ match_device_fn fn);
+
struct device *add_cpu_device(struct bus *cpu_bus, unsigned int apic_id,
int enabled);
void set_cpu_topology(struct device *cpu, unsigned int node,