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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>
This commit is contained in:
Stefan Richter 2009-06-06 18:37:25 +02:00
parent e034d24259
commit 099d54143e
3 changed files with 22 additions and 12 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

8
drivers/firewire/core-card.c
View File

@ -190,12 +190,6 @@ void fw_core_remove_descriptor(struct fw_descriptor *desc)
mutex_unlock(&card_mutex);
}
static int set_broadcast_channel(struct device *dev, void *data)
{
fw_device_set_broadcast_channel(fw_device(dev), (long)data);
return 0;
}
static void allocate_broadcast_channel(struct fw_card *card, int generation)
{
int channel, bandwidth = 0;
@ -205,7 +199,7 @@ static void allocate_broadcast_channel(struct fw_card *card, int generation)
if (channel == 31) {
card->broadcast_channel_allocated = true;
device_for_each_child(card->device, (void *)(long)generation,
set_broadcast_channel);
fw_device_set_broadcast_channel);
}
}

24
drivers/firewire/core-device.c
View File

@ -59,7 +59,7 @@ int fw_csr_iterator_next(struct fw_csr_iterator *ci, int *key, int *value)
}
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 @@ static struct device_type fw_unit_type = {
.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 @@ static struct device_type fw_device_type = {
.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 @@ static int lookup_existing_device(struct device *dev, void *data)
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 @@ static int lookup_existing_device(struct device *dev, void *data)
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 @@ void fw_device_set_broadcast_channel(struct fw_device *device, int generation)
}
}
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 @@ static void fw_device_init(struct work_struct *work)
1 << device->max_speed);
device->config_rom_retries = 0;
fw_device_set_broadcast_channel(device, device->generation);
set_broadcast_channel(device, device->generation);
}
/*

2
drivers/firewire/core.h
View File

@ -124,7 +124,7 @@ extern struct idr fw_device_idr;
extern int fw_cdev_major;
struct fw_device *fw_device_get_by_devt(dev_t devt);
void fw_device_set_broadcast_channel(struct fw_device *device, int generation);
int fw_device_set_broadcast_channel(struct device *dev, void *gen);
void fw_node_event(struct fw_card *card, struct fw_node *node, int event);