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firewire: log GUID of new devices

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This should help to interpret user reports.  E.g. one can look up the
vendor OUI (first three bytes of the GUID) and thus tell what is what.

Also simplifies the math in the GUID sysfs attribute.

Signed-off-by: Stefan Richter <stefanr@s5r6.in-berlin.de>
Signed-off-by: Jarod Wilson <jwilson@redhat.com>
This commit is contained in:
Stefan Richter 2008-02-03 23:03:00 +01:00
parent be6f48b017
commit fa6e697b85
1 changed files with 17 additions and 11 deletions
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28
drivers/firewire/fw-device.c
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@ -358,12 +358,9 @@ static ssize_t
guid_show(struct device *dev, struct device_attribute *attr, char *buf)
{
struct fw_device *device = fw_device(dev);
u64 guid;
guid = ((u64)device->config_rom[3] << 32) | device->config_rom[4];
return snprintf(buf, PAGE_SIZE, "0x%016llx\n",
(unsigned long long)guid);
return snprintf(buf, PAGE_SIZE, "0x%08x%08x\n",
device->config_rom[3], device->config_rom[4]);
}
static struct device_attribute fw_device_attributes[] = {
@ -723,13 +720,22 @@ static void fw_device_init(struct work_struct *work)
*/
if (atomic_cmpxchg(&device->state,
FW_DEVICE_INITIALIZING,
FW_DEVICE_RUNNING) == FW_DEVICE_SHUTDOWN)
FW_DEVICE_RUNNING) == FW_DEVICE_SHUTDOWN) {
fw_device_shutdown(&device->work.work);
else
fw_notify("created new fw device %s "
"(%d config rom retries, S%d00)\n",
device->device.bus_id, device->config_rom_retries,
1 << device->max_speed);
} else {
if (device->config_rom_retries)
fw_notify("created device %s: GUID %08x%08x, S%d00, "
"%d config ROM retries\n",
device->device.bus_id,
device->config_rom[3], device->config_rom[4],
1 << device->max_speed,
device->config_rom_retries);
else
fw_notify("created device %s: GUID %08x%08x, S%d00\n",
device->device.bus_id,
device->config_rom[3], device->config_rom[4],
1 << device->max_speed);
}
/*
* Reschedule the IRM work if we just finished reading the