firewire: core: prepare for non-core children of card devices
The IP-over-1394 driver will add child devices beneath card devices
which are not of type fw_device. Hence firewire-core's callbacks in
device_for_each_child() and device_find_child() need to check for the
device type now.
Initial version written by Jay Fenlason.
Signed-off-by: Stefan Richter <stefanr@s5r6.in-berlin.de>
diff --git a/drivers/firewire/core-device.c b/drivers/firewire/core-device.c
index 3f4e646..d6e54a5 100644
--- a/drivers/firewire/core-device.c
+++ b/drivers/firewire/core-device.c
@@ -59,7 +59,7 @@
}
EXPORT_SYMBOL(fw_csr_iterator_next);
-static int is_fw_unit(struct device *dev);
+static bool is_fw_unit(struct device *dev);
static int match_unit_directory(u32 *directory, u32 match_flags,
const struct ieee1394_device_id *id)
@@ -599,7 +599,7 @@
.release = fw_unit_release,
};
-static int is_fw_unit(struct device *dev)
+static bool is_fw_unit(struct device *dev)
{
return dev->type == &fw_unit_type;
}
@@ -749,6 +749,11 @@
.release = fw_device_release,
};
+static bool is_fw_device(struct device *dev)
+{
+ return dev->type == &fw_device_type;
+}
+
static int update_unit(struct device *dev, void *data)
{
struct fw_unit *unit = fw_unit(dev);
@@ -785,6 +790,9 @@
struct fw_card *card = new->card;
int match = 0;
+ if (!is_fw_device(dev))
+ return 0;
+
down_read(&fw_device_rwsem); /* serialize config_rom access */
spin_lock_irq(&card->lock); /* serialize node access */
@@ -824,7 +832,7 @@
enum { BC_UNKNOWN = 0, BC_UNIMPLEMENTED, BC_IMPLEMENTED, };
-void fw_device_set_broadcast_channel(struct fw_device *device, int generation)
+static void set_broadcast_channel(struct fw_device *device, int generation)
{
struct fw_card *card = device->card;
__be32 data;
@@ -860,6 +868,14 @@
}
}
+int fw_device_set_broadcast_channel(struct device *dev, void *gen)
+{
+ if (is_fw_device(dev))
+ set_broadcast_channel(fw_device(dev), (long)gen);
+
+ return 0;
+}
+
static void fw_device_init(struct work_struct *work)
{
struct fw_device *device =
@@ -958,7 +974,7 @@
1 << device->max_speed);
device->config_rom_retries = 0;
- fw_device_set_broadcast_channel(device, device->generation);
+ set_broadcast_channel(device, device->generation);
}
/*