summaryrefslogtreecommitdiff
path: root/drivers/firewire/core-device.c
diff options
context:
space:
mode:
authorPatrick McHardy <kaber@trash.net>2010-04-20 18:02:01 +0400
committerPatrick McHardy <kaber@trash.net>2010-04-20 18:02:01 +0400
commit62910554656cdcd6b6f84a5154c4155aae4ca231 (patch)
treedcf14004f6fd2ef7154362ff948bfeba0f3ea92d /drivers/firewire/core-device.c
parent22265a5c3c103cf8c50be62e6c90d045eb649e6d (diff)
parentab9304717f7624c41927f442e6b6d418b2d8b3e4 (diff)
downloadlinux-62910554656cdcd6b6f84a5154c4155aae4ca231.tar.xz
Merge branch 'master' of /repos/git/net-next-2.6
Conflicts: Documentation/feature-removal-schedule.txt net/ipv6/netfilter/ip6t_REJECT.c net/netfilter/xt_limit.c Signed-off-by: Patrick McHardy <kaber@trash.net>
Diffstat (limited to 'drivers/firewire/core-device.c')
-rw-r--r--drivers/firewire/core-device.c104
1 files changed, 41 insertions, 63 deletions
diff --git a/drivers/firewire/core-device.c b/drivers/firewire/core-device.c
index 5db0518c66da..4b8523f00dce 100644
--- a/drivers/firewire/core-device.c
+++ b/drivers/firewire/core-device.c
@@ -33,6 +33,7 @@
#include <linux/module.h>
#include <linux/mutex.h>
#include <linux/rwsem.h>
+#include <linux/slab.h>
#include <linux/spinlock.h>
#include <linux/string.h>
#include <linux/workqueue.h>
@@ -126,97 +127,74 @@ int fw_csr_string(const u32 *directory, int key, char *buf, size_t size)
}
EXPORT_SYMBOL(fw_csr_string);
-static bool is_fw_unit(struct device *dev);
-
-static int match_unit_directory(const u32 *directory, u32 match_flags,
- const struct ieee1394_device_id *id)
+static void get_ids(const u32 *directory, int *id)
{
struct fw_csr_iterator ci;
- int key, value, match;
+ int key, value;
- match = 0;
fw_csr_iterator_init(&ci, directory);
while (fw_csr_iterator_next(&ci, &key, &value)) {
- if (key == CSR_VENDOR && value == id->vendor_id)
- match |= IEEE1394_MATCH_VENDOR_ID;
- if (key == CSR_MODEL && value == id->model_id)
- match |= IEEE1394_MATCH_MODEL_ID;
- if (key == CSR_SPECIFIER_ID && value == id->specifier_id)
- match |= IEEE1394_MATCH_SPECIFIER_ID;
- if (key == CSR_VERSION && value == id->version)
- match |= IEEE1394_MATCH_VERSION;
+ switch (key) {
+ case CSR_VENDOR: id[0] = value; break;
+ case CSR_MODEL: id[1] = value; break;
+ case CSR_SPECIFIER_ID: id[2] = value; break;
+ case CSR_VERSION: id[3] = value; break;
+ }
}
+}
+
+static void get_modalias_ids(struct fw_unit *unit, int *id)
+{
+ get_ids(&fw_parent_device(unit)->config_rom[5], id);
+ get_ids(unit->directory, id);
+}
+
+static bool match_ids(const struct ieee1394_device_id *id_table, int *id)
+{
+ int match = 0;
+
+ if (id[0] == id_table->vendor_id)
+ match |= IEEE1394_MATCH_VENDOR_ID;
+ if (id[1] == id_table->model_id)
+ match |= IEEE1394_MATCH_MODEL_ID;
+ if (id[2] == id_table->specifier_id)
+ match |= IEEE1394_MATCH_SPECIFIER_ID;
+ if (id[3] == id_table->version)
+ match |= IEEE1394_MATCH_VERSION;
- return (match & match_flags) == match_flags;
+ return (match & id_table->match_flags) == id_table->match_flags;
}
+static bool is_fw_unit(struct device *dev);
+
static int fw_unit_match(struct device *dev, struct device_driver *drv)
{
- struct fw_unit *unit = fw_unit(dev);
- struct fw_device *device;
- const struct ieee1394_device_id *id;
+ const struct ieee1394_device_id *id_table =
+ container_of(drv, struct fw_driver, driver)->id_table;
+ int id[] = {0, 0, 0, 0};
/* We only allow binding to fw_units. */
if (!is_fw_unit(dev))
return 0;
- device = fw_parent_device(unit);
- id = container_of(drv, struct fw_driver, driver)->id_table;
+ get_modalias_ids(fw_unit(dev), id);
- for (; id->match_flags != 0; id++) {
- if (match_unit_directory(unit->directory, id->match_flags, id))
+ for (; id_table->match_flags != 0; id_table++)
+ if (match_ids(id_table, id))
return 1;
- /* Also check vendor ID in the root directory. */
- if ((id->match_flags & IEEE1394_MATCH_VENDOR_ID) &&
- match_unit_directory(&device->config_rom[5],
- IEEE1394_MATCH_VENDOR_ID, id) &&
- match_unit_directory(unit->directory, id->match_flags
- & ~IEEE1394_MATCH_VENDOR_ID, id))
- return 1;
- }
-
return 0;
}
static int get_modalias(struct fw_unit *unit, char *buffer, size_t buffer_size)
{
- struct fw_device *device = fw_parent_device(unit);
- struct fw_csr_iterator ci;
+ int id[] = {0, 0, 0, 0};
- int key, value;
- int vendor = 0;
- int model = 0;
- int specifier_id = 0;
- int version = 0;
-
- fw_csr_iterator_init(&ci, &device->config_rom[5]);
- while (fw_csr_iterator_next(&ci, &key, &value)) {
- switch (key) {
- case CSR_VENDOR:
- vendor = value;
- break;
- case CSR_MODEL:
- model = value;
- break;
- }
- }
-
- fw_csr_iterator_init(&ci, unit->directory);
- while (fw_csr_iterator_next(&ci, &key, &value)) {
- switch (key) {
- case CSR_SPECIFIER_ID:
- specifier_id = value;
- break;
- case CSR_VERSION:
- version = value;
- break;
- }
- }
+ get_modalias_ids(unit, id);
return snprintf(buffer, buffer_size,
"ieee1394:ven%08Xmo%08Xsp%08Xver%08X",
- vendor, model, specifier_id, version);
+ id[0], id[1], id[2], id[3]);
}
static int fw_unit_uevent(struct device *dev, struct kobj_uevent_env *env)