From 0b8b0dca9aad94878adaf4520f3f12bf9813f329 Mon Sep 17 00:00:00 2001 From: Alex Chiang Date: Mon, 20 Oct 2008 17:42:03 -0600 Subject: PCI Hotplug: fakephp: add duplicate slot name debugging The PCI core now manages slot names on behalf of slot detection and slot hotplug drivers, including the handling of duplicate slot names. We can use the fakephp driver to help test the new functionality. Add a 'dup_slots' module param to force fakephp to create multiple slots with the same name. We can then verify that the PCI core correctly renamed the slots. sapphire:/sys/bus/pci/slots # modprobe fakephp dup_slots sapphire:/sys/bus/pci/slots # ls fake fake-10 fake-3 fake-5 fake-7 fake-9 fake-1 fake-2 fake-4 fake-6 fake-8 Cc: kristen.c.accardi@intel.com Cc: matthew@wil.cx Acked-by: Kenji Kaneshige Signed-off-by: Alex Chiang Signed-off-by: Jesse Barnes --- drivers/pci/hotplug/fakephp.c | 10 ++++++++-- 1 file changed, 8 insertions(+), 2 deletions(-) (limited to 'drivers/pci/hotplug/fakephp.c') diff --git a/drivers/pci/hotplug/fakephp.c b/drivers/pci/hotplug/fakephp.c index 24dcbf13e98b..3a2637a00934 100644 --- a/drivers/pci/hotplug/fakephp.c +++ b/drivers/pci/hotplug/fakephp.c @@ -69,6 +69,7 @@ struct dummy_slot { }; static int debug; +static int dup_slots; static LIST_HEAD(slot_list); static struct workqueue_struct *dummyphp_wq; @@ -121,7 +122,11 @@ static int add_slot(struct pci_dev *dev) if (!dslot) goto error_info; - snprintf(name, SLOT_NAME_SIZE, "fake%d", count++); + if (dup_slots) + snprintf(name, SLOT_NAME_SIZE, "fake"); + else + snprintf(name, SLOT_NAME_SIZE, "fake%d", count++); + dbg("slot->name = %s\n", name); slot->ops = &dummy_hotplug_slot_ops; slot->release = &dummy_release; slot->private = dslot; @@ -375,4 +380,5 @@ MODULE_DESCRIPTION(DRIVER_DESC); MODULE_LICENSE("GPL"); module_param(debug, bool, S_IRUGO | S_IWUSR); MODULE_PARM_DESC(debug, "Debugging mode enabled or not"); - +module_param(dup_slots, bool, S_IRUGO | S_IWUSR); +MODULE_PARM_DESC(dup_slots, "Force duplicate slot names for debugging"); -- cgit v1.2.1