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SubjectThinkpad docking station: pci hotplug questions
Hi!

I'm trying to get PCI hotplug to work on thinkpad x32 -- it is
apparently neccessary for proper docking station support. What needs
to be done to get it running?

I noticed some strangenesses:

pcihpfs is mentioned in Kconfig, but I can't find it anywhere in
kernel

CONFIG_HOTPLUG_PCI_PCIE exists in Makefile but not in Kconfig.

And here are some coding style fixes:

Signed-off-by: Pavel Machek <pavel@suse.cz>

diff --git a/drivers/pci/hotplug/acpiphp_ibm.c b/drivers/pci/hotplug/acpiphp_ibm.c
--- a/drivers/pci/hotplug/acpiphp_ibm.c
+++ b/drivers/pci/hotplug/acpiphp_ibm.c
@@ -302,7 +302,7 @@ static int ibm_get_table_from_acpi(char
}

package = (union acpi_object *) buffer.pointer;
- if(!(package) ||
+ if (!(package) ||
(package->type != ACPI_TYPE_PACKAGE) ||
!(package->package.elements)) {
err("%s: Invalid APCI object\n", __FUNCTION__);
@@ -405,7 +405,7 @@ static acpi_status __init ibm_find_acpi_
}
info.hardware_id.value[sizeof(info.hardware_id.value) - 1] = '\0';

- if(info.current_status && (info.valid & ACPI_VALID_HID) &&
+ if (info.current_status && (info.valid & ACPI_VALID_HID) &&
(!strcmp(info.hardware_id.value, IBM_HARDWARE_ID1) ||
!strcmp(info.hardware_id.value, IBM_HARDWARE_ID2))) {
dbg("found hardware: %s, handle: %p\n", info.hardware_id.value,
@@ -449,13 +449,11 @@ static int __init ibm_acpiphp_init(void)
}

ibm_note.device = device;
- status = acpi_install_notify_handler(
- ibm_acpi_handle,
- ACPI_DEVICE_NOTIFY,
- ibm_handle_events,
+ status = acpi_install_notify_handler(ibm_acpi_handle,
+ ACPI_DEVICE_NOTIFY, ibm_handle_events,
&ibm_note);
if (ACPI_FAILURE(status)) {
- err("%s: Failed to register notification handler\n",
+ err("%s: Failed to register notification handler\n",
__FUNCTION__);
retval = -EBUSY;
goto init_cleanup;
@@ -482,14 +480,13 @@ static void __exit ibm_acpiphp_exit(void
if (acpiphp_unregister_attention(&ibm_attention_info))
err("%s: attention info deregistration failed", __FUNCTION__);

- status = acpi_remove_notify_handler(
+ status = acpi_remove_notify_handler(
ibm_acpi_handle,
ACPI_DEVICE_NOTIFY,
ibm_handle_events);
- if (ACPI_FAILURE(status))
- err("%s: Notification handler removal failed\n",
- __FUNCTION__);
- // remove the /sys entries
+ if (ACPI_FAILURE(status))
+ err("%s: Notification handler removal failed\n", __FUNCTION__);
+ /* remove the /sys entries */
if (sysfs_remove_bin_file(sysdir, &ibm_apci_table_attr))
err("%s: removal of sysfs file apci_table failed\n",
__FUNCTION__);
diff --git a/drivers/pci/hotplug/ibmphp_core.c b/drivers/pci/hotplug/ibmphp_core.c
--- a/drivers/pci/hotplug/ibmphp_core.c
+++ b/drivers/pci/hotplug/ibmphp_core.c
@@ -235,12 +235,12 @@ static int set_attention_status(struct h
{
int rc = 0;
struct slot *pslot;
- u8 cmd;
+ u8 cmd = 0x00; /* avoid compiler warning */

debug("set_attention_status - Entry hotplug_slot[%lx] value[%x]\n",
(ulong) hotplug_slot, value);
ibmphp_lock_operations();
- cmd = 0x00; // avoid compiler warning
+

if (hotplug_slot) {
switch (value) {



--
Thanks, Sharp!
-
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