diff mbox

ACPI / hotplug / PCI: Use pci_device_is_present()

Message ID 1505390.MlpMqG8COu@vostro.rjw.lan
State Not Applicable
Headers show

Commit Message

Rafael J. Wysocki March 3, 2014, 12:19 a.m. UTC
From: Rafael J. Wysocki <rafael.j.wysocki@intel.com>

Make the ACPI-based PCI hotplug (ACPIPHP) code use
pci_device_is_present() for checking if devices are present instead
of open coding the same thing.

Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
---

On top of current linux-next.

Thanks!

---
 drivers/pci/hotplug/acpiphp_glue.c |    7 ++-----
 1 file changed, 2 insertions(+), 5 deletions(-)


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Comments

mika.westerberg@linux.intel.com March 4, 2014, 8:23 a.m. UTC | #1
On Mon, Mar 03, 2014 at 01:19:25AM +0100, Rafael J. Wysocki wrote:
> From: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
> 
> Make the ACPI-based PCI hotplug (ACPIPHP) code use
> pci_device_is_present() for checking if devices are present instead
> of open coding the same thing.
> 
> Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>

Reviewed-by: Mika Westerberg <mika.westerberg@linux.intel.com>
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Rafael J. Wysocki March 5, 2014, 12:34 a.m. UTC | #2
On Tuesday, March 04, 2014 10:23:58 AM Mika Westerberg wrote:
> On Mon, Mar 03, 2014 at 01:19:25AM +0100, Rafael J. Wysocki wrote:
> > From: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
> > 
> > Make the ACPI-based PCI hotplug (ACPIPHP) code use
> > pci_device_is_present() for checking if devices are present instead
> > of open coding the same thing.
> > 
> > Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
> 
> Reviewed-by: Mika Westerberg <mika.westerberg@linux.intel.com>

Thanks!
diff mbox

Patch

Index: linux-pm/drivers/pci/hotplug/acpiphp_glue.c
===================================================================
--- linux-pm.orig/drivers/pci/hotplug/acpiphp_glue.c
+++ linux-pm/drivers/pci/hotplug/acpiphp_glue.c
@@ -668,12 +668,9 @@  static void trim_stale_devices(struct pc
 		alive = (ACPI_SUCCESS(status) && device_status_valid(sta))
 			|| acpiphp_no_hotplug(adev);
 	}
-	if (!alive) {
-		u32 v;
+	if (!alive)
+		alive = pci_device_is_present(dev);
 
-		/* Check if the device responds. */
-		alive = pci_bus_read_dev_vendor_id(dev->bus, dev->devfn, &v, 0);
-	}
 	if (!alive) {
 		pci_stop_and_remove_bus_device(dev);
 		if (adev)