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-rw-r--r--hw/i2c/core.c23
1 files changed, 19 insertions, 4 deletions
diff --git a/hw/i2c/core.c b/hw/i2c/core.c
index 21ec52ac5a..d03b0eea5c 100644
--- a/hw/i2c/core.c
+++ b/hw/i2c/core.c
@@ -118,10 +118,9 @@ int i2c_start_transfer(I2CBus *bus, uint8_t address, int recv)
         QTAILQ_FOREACH(kid, &bus->qbus.children, sibling) {
             DeviceState *qdev = kid->child;
             I2CSlave *candidate = I2C_SLAVE(qdev);
-            if ((candidate->address == address) || (bus->broadcast)) {
-                node = g_malloc(sizeof(struct I2CNode));
-                node->elt = candidate;
-                QLIST_INSERT_HEAD(&bus->current_devs, node, next);
+            sc = I2C_SLAVE_GET_CLASS(candidate);
+            if (sc->match_and_add(candidate, address, bus->broadcast,
+                                  &bus->current_devs)) {
                 if (!bus->broadcast) {
                     break;
                 }
@@ -290,12 +289,28 @@ I2CSlave *i2c_slave_create_simple(I2CBus *bus, const char *name, uint8_t addr)
     return dev;
 }
 
+static bool i2c_slave_match(I2CSlave *candidate, uint8_t address,
+                            bool broadcast, I2CNodeList *current_devs)
+{
+    if ((candidate->address == address) || (broadcast)) {
+        I2CNode *node = g_malloc(sizeof(struct I2CNode));
+        node->elt = candidate;
+        QLIST_INSERT_HEAD(current_devs, node, next);
+        return true;
+    }
+
+    /* Not found and not broadcast. */
+    return false;
+}
+
 static void i2c_slave_class_init(ObjectClass *klass, void *data)
 {
     DeviceClass *k = DEVICE_CLASS(klass);
+    I2CSlaveClass *sc = I2C_SLAVE_CLASS(klass);
     set_bit(DEVICE_CATEGORY_MISC, k->categories);
     k->bus_type = TYPE_I2C_BUS;
     device_class_set_props(k, i2c_props);
+    sc->match_and_add = i2c_slave_match;
 }
 
 static const TypeInfo i2c_slave_type_info = {