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Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel…
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…/git/jbarnes/pci-2.6

* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jbarnes/pci-2.6:
  PCI: remove unused resource assignment in pci_read_bridge_bases()
  PCI hotplug: shpchp: message refinement
  PCI hotplug: shpchp: replace printk with dev_printk
  PCI: add routines for debugging and handling lost interrupts
  PCI hotplug: pciehp: message refinement
  PCI: fix ARI code to be compatible with mixed ARI/non-ARI systems
  PCI hotplug: cpqphp: fix kernel NULL pointer dereference
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Linus Torvalds committed Oct 24, 2008
2 parents 2242d5e + a491913 commit 3a2c5da
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Showing 16 changed files with 376 additions and 263 deletions.
3 changes: 2 additions & 1 deletion drivers/pci/Makefile
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Original file line number Diff line number Diff line change
Expand Up @@ -3,7 +3,8 @@
#

obj-y += access.o bus.o probe.o remove.o pci.o quirks.o slot.o \
pci-driver.o search.o pci-sysfs.o rom.o setup-res.o
pci-driver.o search.o pci-sysfs.o rom.o setup-res.o \
irq.o
obj-$(CONFIG_PROC_FS) += proc.o

# Build PCI Express stuff if needed
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2 changes: 1 addition & 1 deletion drivers/pci/hotplug/cpqphp_core.c
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Original file line number Diff line number Diff line change
Expand Up @@ -433,7 +433,7 @@ static int ctrl_slot_setup(struct controller *ctrl,
slot->number, ctrl->slot_device_offset,
slot_number);
result = pci_hp_register(hotplug_slot,
ctrl->pci_dev->subordinate,
ctrl->pci_dev->bus,
slot->device,
name);
if (result) {
Expand Down
2 changes: 1 addition & 1 deletion drivers/pci/hotplug/pciehp.h
View file
Original file line number Diff line number Diff line change
Expand Up @@ -188,7 +188,7 @@ static inline struct slot *pciehp_find_slot(struct controller *ctrl, u8 device)
return slot;
}

ctrl_err(ctrl, "%s: slot (device=0x%x) not found\n", __func__, device);
ctrl_err(ctrl, "Slot (device=0x%02x) not found\n", device);
return NULL;
}

Expand Down
38 changes: 20 additions & 18 deletions drivers/pci/hotplug/pciehp_core.c
View file
Original file line number Diff line number Diff line change
Expand Up @@ -184,7 +184,7 @@ static void release_slot(struct hotplug_slot *hotplug_slot)
{
struct slot *slot = hotplug_slot->private;

ctrl_dbg(slot->ctrl, "%s - physical_slot = %s\n",
ctrl_dbg(slot->ctrl, "%s: physical_slot = %s\n",
__func__, hotplug_slot_name(hotplug_slot));

kfree(hotplug_slot->info);
Expand Down Expand Up @@ -216,9 +216,11 @@ static int init_slots(struct controller *ctrl)
slot->hotplug_slot = hotplug_slot;
snprintf(name, SLOT_NAME_SIZE, "%u", slot->number);

ctrl_dbg(ctrl, "Registering bus=%x dev=%x hp_slot=%x sun=%x "
"slot_device_offset=%x\n", slot->bus, slot->device,
slot->hp_slot, slot->number, ctrl->slot_device_offset);
ctrl_dbg(ctrl, "Registering domain:bus:dev=%04x:%02x:%02x "
"hp_slot=%x sun=%x slot_device_offset=%x\n",
pci_domain_nr(ctrl->pci_dev->subordinate),
slot->bus, slot->device, slot->hp_slot, slot->number,
ctrl->slot_device_offset);
retval = pci_hp_register(hotplug_slot,
ctrl->pci_dev->subordinate,
slot->device,
Expand All @@ -238,7 +240,7 @@ static int init_slots(struct controller *ctrl)
&hotplug_slot_attr_lock.attr);
if (retval) {
pci_hp_deregister(hotplug_slot);
ctrl_err(ctrl, "cannot create additional sysfs "
ctrl_err(ctrl, "Cannot create additional sysfs "
"entries\n");
goto error_info;
}
Expand Down Expand Up @@ -273,7 +275,7 @@ static int set_attention_status(struct hotplug_slot *hotplug_slot, u8 status)
{
struct slot *slot = hotplug_slot->private;

ctrl_dbg(slot->ctrl, "%s - physical_slot = %s\n",
ctrl_dbg(slot->ctrl, "%s: physical_slot = %s\n",
__func__, slot_name(slot));

hotplug_slot->info->attention_status = status;
Expand All @@ -289,7 +291,7 @@ static int enable_slot(struct hotplug_slot *hotplug_slot)
{
struct slot *slot = hotplug_slot->private;

ctrl_dbg(slot->ctrl, "%s - physical_slot = %s\n",
ctrl_dbg(slot->ctrl, "%s: physical_slot = %s\n",
__func__, slot_name(slot));

return pciehp_sysfs_enable_slot(slot);
Expand All @@ -300,7 +302,7 @@ static int disable_slot(struct hotplug_slot *hotplug_slot)
{
struct slot *slot = hotplug_slot->private;

ctrl_dbg(slot->ctrl, "%s - physical_slot = %s\n",
ctrl_dbg(slot->ctrl, "%s: physical_slot = %s\n",
__func__, slot_name(slot));

return pciehp_sysfs_disable_slot(slot);
Expand All @@ -311,7 +313,7 @@ static int get_power_status(struct hotplug_slot *hotplug_slot, u8 *value)
struct slot *slot = hotplug_slot->private;
int retval;

ctrl_dbg(slot->ctrl, "%s - physical_slot = %s\n",
ctrl_dbg(slot->ctrl, "%s: physical_slot = %s\n",
__func__, slot_name(slot));

retval = slot->hpc_ops->get_power_status(slot, value);
Expand All @@ -326,7 +328,7 @@ static int get_attention_status(struct hotplug_slot *hotplug_slot, u8 *value)
struct slot *slot = hotplug_slot->private;
int retval;

ctrl_dbg(slot->ctrl, "%s - physical_slot = %s\n",
ctrl_dbg(slot->ctrl, "%s: physical_slot = %s\n",
__func__, slot_name(slot));

retval = slot->hpc_ops->get_attention_status(slot, value);
Expand All @@ -341,7 +343,7 @@ static int get_latch_status(struct hotplug_slot *hotplug_slot, u8 *value)
struct slot *slot = hotplug_slot->private;
int retval;

ctrl_dbg(slot->ctrl, "%s - physical_slot = %s\n",
ctrl_dbg(slot->ctrl, "%s: physical_slot = %s\n",
__func__, slot_name(slot));

retval = slot->hpc_ops->get_latch_status(slot, value);
Expand All @@ -356,7 +358,7 @@ static int get_adapter_status(struct hotplug_slot *hotplug_slot, u8 *value)
struct slot *slot = hotplug_slot->private;
int retval;

ctrl_dbg(slot->ctrl, "%s - physical_slot = %s\n",
ctrl_dbg(slot->ctrl, "%s: physical_slot = %s\n",
__func__, slot_name(slot));

retval = slot->hpc_ops->get_adapter_status(slot, value);
Expand All @@ -372,7 +374,7 @@ static int get_max_bus_speed(struct hotplug_slot *hotplug_slot,
struct slot *slot = hotplug_slot->private;
int retval;

ctrl_dbg(slot->ctrl, "%s - physical_slot = %s\n",
ctrl_dbg(slot->ctrl, "%s: physical_slot = %s\n",
__func__, slot_name(slot));

retval = slot->hpc_ops->get_max_bus_speed(slot, value);
Expand All @@ -387,7 +389,7 @@ static int get_cur_bus_speed(struct hotplug_slot *hotplug_slot, enum pci_bus_spe
struct slot *slot = hotplug_slot->private;
int retval;

ctrl_dbg(slot->ctrl, "%s - physical_slot = %s\n",
ctrl_dbg(slot->ctrl, "%s: physical_slot = %s\n",
__func__, slot_name(slot));

retval = slot->hpc_ops->get_cur_bus_speed(slot, value);
Expand All @@ -414,7 +416,7 @@ static int pciehp_probe(struct pcie_device *dev, const struct pcie_port_service_

ctrl = pcie_init(dev);
if (!ctrl) {
dev_err(&dev->device, "controller initialization failed\n");
dev_err(&dev->device, "Controller initialization failed\n");
goto err_out_none;
}
set_service_data(dev, ctrl);
Expand All @@ -423,10 +425,10 @@ static int pciehp_probe(struct pcie_device *dev, const struct pcie_port_service_
rc = init_slots(ctrl);
if (rc) {
if (rc == -EBUSY)
ctrl_warn(ctrl, "slot already registered by another "
ctrl_warn(ctrl, "Slot already registered by another "
"hotplug driver\n");
else
ctrl_err(ctrl, "slot initialization failed\n");
ctrl_err(ctrl, "Slot initialization failed\n");
goto err_out_release_ctlr;
}

Expand Down Expand Up @@ -523,7 +525,7 @@ static int __init pcied_init(void)
dbg("pcie_port_service_register = %d\n", retval);
info(DRIVER_DESC " version: " DRIVER_VERSION "\n");
if (retval)
dbg("%s: Failure to register service\n", __func__);
dbg("Failure to register service\n");
return retval;
}

Expand Down
64 changes: 32 additions & 32 deletions drivers/pci/hotplug/pciehp_ctrl.c
View file
Original file line number Diff line number Diff line change
Expand Up @@ -61,7 +61,7 @@ u8 pciehp_handle_attention_button(struct slot *p_slot)
struct controller *ctrl = p_slot->ctrl;

/* Attention Button Change */
ctrl_dbg(ctrl, "Attention button interrupt received.\n");
ctrl_dbg(ctrl, "Attention button interrupt received\n");

/*
* Button pressed - See if need to TAKE ACTION!!!
Expand All @@ -81,7 +81,7 @@ u8 pciehp_handle_switch_change(struct slot *p_slot)
struct controller *ctrl = p_slot->ctrl;

/* Switch Change */
ctrl_dbg(ctrl, "Switch interrupt received.\n");
ctrl_dbg(ctrl, "Switch interrupt received\n");

p_slot->hpc_ops->get_latch_status(p_slot, &getstatus);
if (getstatus) {
Expand Down Expand Up @@ -110,7 +110,7 @@ u8 pciehp_handle_presence_change(struct slot *p_slot)
struct controller *ctrl = p_slot->ctrl;

/* Presence Change */
ctrl_dbg(ctrl, "Presence/Notify input change.\n");
ctrl_dbg(ctrl, "Presence/Notify input change\n");

/* Switch is open, assume a presence change
* Save the presence state
Expand Down Expand Up @@ -142,7 +142,7 @@ u8 pciehp_handle_power_fault(struct slot *p_slot)
struct controller *ctrl = p_slot->ctrl;

/* power fault */
ctrl_dbg(ctrl, "Power fault interrupt received.\n");
ctrl_dbg(ctrl, "Power fault interrupt received\n");

if ( !(p_slot->hpc_ops->query_power_fault(p_slot))) {
/*
Expand All @@ -157,7 +157,7 @@ u8 pciehp_handle_power_fault(struct slot *p_slot)
*/
ctrl_info(ctrl, "Power fault on Slot(%s)\n", slot_name(p_slot));
event_type = INT_POWER_FAULT;
ctrl_info(ctrl, "power fault bit %x set\n", 0);
ctrl_info(ctrl, "Power fault bit %x set\n", 0);
}

queue_interrupt_event(p_slot, event_type);
Expand All @@ -175,8 +175,7 @@ static void set_slot_off(struct controller *ctrl, struct slot * pslot)
if (POWER_CTRL(ctrl)) {
if (pslot->hpc_ops->power_off_slot(pslot)) {
ctrl_err(ctrl,
"%s: Issue of Slot Power Off command failed\n",
__func__);
"Issue of Slot Power Off command failed\n");
return;
}
}
Expand All @@ -193,8 +192,8 @@ static void set_slot_off(struct controller *ctrl, struct slot * pslot)

if (ATTN_LED(ctrl)) {
if (pslot->hpc_ops->set_attention_status(pslot, 1)) {
ctrl_err(ctrl, "%s: Issue of Set Attention "
"Led command failed\n", __func__);
ctrl_err(ctrl,
"Issue of Set Attention Led command failed\n");
return;
}
}
Expand All @@ -211,8 +210,9 @@ static int board_added(struct slot *p_slot)
{
int retval = 0;
struct controller *ctrl = p_slot->ctrl;
struct pci_bus *parent = ctrl->pci_dev->subordinate;

ctrl_dbg(ctrl, "%s: slot device, slot offset, hp slot = %d, %d ,%d\n",
ctrl_dbg(ctrl, "%s: slot device, slot offset, hp slot = %d, %d, %d\n",
__func__, p_slot->device, ctrl->slot_device_offset,
p_slot->hp_slot);

Expand All @@ -229,22 +229,22 @@ static int board_added(struct slot *p_slot)
/* Check link training status */
retval = p_slot->hpc_ops->check_lnk_status(ctrl);
if (retval) {
ctrl_err(ctrl, "%s: Failed to check link status\n", __func__);
ctrl_err(ctrl, "Failed to check link status\n");
set_slot_off(ctrl, p_slot);
return retval;
}

/* Check for a power fault */
if (p_slot->hpc_ops->query_power_fault(p_slot)) {
ctrl_dbg(ctrl, "%s: power fault detected\n", __func__);
ctrl_dbg(ctrl, "Power fault detected\n");
retval = POWER_FAILURE;
goto err_exit;
}

retval = pciehp_configure_device(p_slot);
if (retval) {
ctrl_err(ctrl, "Cannot add device 0x%x:%x\n",
p_slot->bus, p_slot->device);
ctrl_err(ctrl, "Cannot add device at %04x:%02x:%02x\n",
pci_domain_nr(parent), p_slot->bus, p_slot->device);
goto err_exit;
}

Expand Down Expand Up @@ -276,14 +276,14 @@ static int remove_board(struct slot *p_slot)
if (retval)
return retval;

ctrl_dbg(ctrl, "In %s, hp_slot = %d\n", __func__, p_slot->hp_slot);
ctrl_dbg(ctrl, "%s: hp_slot = %d\n", __func__, p_slot->hp_slot);

if (POWER_CTRL(ctrl)) {
/* power off slot */
retval = p_slot->hpc_ops->power_off_slot(p_slot);
if (retval) {
ctrl_err(ctrl, "%s: Issue of Slot Disable command "
"failed\n", __func__);
ctrl_err(ctrl,
"Issue of Slot Disable command failed\n");
return retval;
}
}
Expand Down Expand Up @@ -324,8 +324,10 @@ static void pciehp_power_thread(struct work_struct *work)
switch (p_slot->state) {
case POWEROFF_STATE:
mutex_unlock(&p_slot->lock);
ctrl_dbg(p_slot->ctrl, "%s: disabling bus:device(%x:%x)\n",
__func__, p_slot->bus, p_slot->device);
ctrl_dbg(p_slot->ctrl,
"Disabling domain:bus:device=%04x:%02x:%02x\n",
pci_domain_nr(p_slot->ctrl->pci_dev->subordinate),
p_slot->bus, p_slot->device);
pciehp_disable_slot(p_slot);
mutex_lock(&p_slot->lock);
p_slot->state = STATIC_STATE;
Expand Down Expand Up @@ -433,7 +435,6 @@ static void handle_button_press_event(struct slot *p_slot)
* expires to cancel hot-add or hot-remove
*/
ctrl_info(ctrl, "Button cancel on Slot(%s)\n", slot_name(p_slot));
ctrl_dbg(ctrl, "%s: button cancel\n", __func__);
cancel_delayed_work(&p_slot->work);
if (p_slot->state == BLINKINGOFF_STATE) {
if (PWR_LED(ctrl))
Expand Down Expand Up @@ -537,16 +538,15 @@ int pciehp_enable_slot(struct slot *p_slot)

rc = p_slot->hpc_ops->get_adapter_status(p_slot, &getstatus);
if (rc || !getstatus) {
ctrl_info(ctrl, "%s: no adapter on slot(%s)\n",
__func__, slot_name(p_slot));
ctrl_info(ctrl, "No adapter on slot(%s)\n", slot_name(p_slot));
mutex_unlock(&p_slot->ctrl->crit_sect);
return -ENODEV;
}
if (MRL_SENS(p_slot->ctrl)) {
rc = p_slot->hpc_ops->get_latch_status(p_slot, &getstatus);
if (rc || getstatus) {
ctrl_info(ctrl, "%s: latch open on slot(%s)\n",
__func__, slot_name(p_slot));
ctrl_info(ctrl, "Latch open on slot(%s)\n",
slot_name(p_slot));
mutex_unlock(&p_slot->ctrl->crit_sect);
return -ENODEV;
}
Expand All @@ -555,8 +555,8 @@ int pciehp_enable_slot(struct slot *p_slot)
if (POWER_CTRL(p_slot->ctrl)) {
rc = p_slot->hpc_ops->get_power_status(p_slot, &getstatus);
if (rc || getstatus) {
ctrl_info(ctrl, "%s: already enabled on slot(%s)\n",
__func__, slot_name(p_slot));
ctrl_info(ctrl, "Already enabled on slot(%s)\n",
slot_name(p_slot));
mutex_unlock(&p_slot->ctrl->crit_sect);
return -EINVAL;
}
Expand Down Expand Up @@ -591,8 +591,8 @@ int pciehp_disable_slot(struct slot *p_slot)
if (!HP_SUPR_RM(p_slot->ctrl)) {
ret = p_slot->hpc_ops->get_adapter_status(p_slot, &getstatus);
if (ret || !getstatus) {
ctrl_info(ctrl, "%s: no adapter on slot(%s)\n",
__func__, slot_name(p_slot));
ctrl_info(ctrl, "No adapter on slot(%s)\n",
slot_name(p_slot));
mutex_unlock(&p_slot->ctrl->crit_sect);
return -ENODEV;
}
Expand All @@ -601,8 +601,8 @@ int pciehp_disable_slot(struct slot *p_slot)
if (MRL_SENS(p_slot->ctrl)) {
ret = p_slot->hpc_ops->get_latch_status(p_slot, &getstatus);
if (ret || getstatus) {
ctrl_info(ctrl, "%s: latch open on slot(%s)\n",
__func__, slot_name(p_slot));
ctrl_info(ctrl, "Latch open on slot(%s)\n",
slot_name(p_slot));
mutex_unlock(&p_slot->ctrl->crit_sect);
return -ENODEV;
}
Expand All @@ -611,8 +611,8 @@ int pciehp_disable_slot(struct slot *p_slot)
if (POWER_CTRL(p_slot->ctrl)) {
ret = p_slot->hpc_ops->get_power_status(p_slot, &getstatus);
if (ret || !getstatus) {
ctrl_info(ctrl, "%s: already disabled slot(%s)\n",
__func__, slot_name(p_slot));
ctrl_info(ctrl, "Already disabled on slot(%s)\n",
slot_name(p_slot));
mutex_unlock(&p_slot->ctrl->crit_sect);
return -EINVAL;
}
Expand Down
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