From 417a592331fb42c88bd7a102968fdc0255e5cf22 Mon Sep 17 00:00:00 2001
From: Peter Wu <lekensteyn@gmail.com>
Date: Thu, 5 Dec 2013 00:17:10 +0100
Subject: [PATCH] Linux 3.13 compatibility

Reported by ArchangeGabriel, original patch by tuxoko (Issue
Bumblebee-Project/bbswitch#75)
---
 bbswitch.c | 6 ++++++
 1 file changed, 6 insertions(+)

diff --git a/bbswitch.c b/bbswitch.c
index 30fbf94..5e2b98f 100644
--- a/bbswitch.c
+++ b/bbswitch.c
@@ -403,7 +403,13 @@ static int __init bbswitch_init(void) {
             pci_class != PCI_CLASS_DISPLAY_3D)
             continue;
 
+#ifdef ACPI_HANDLE
+        /* since Linux 3.8 */
+        handle = ACPI_HANDLE(&pdev->dev);
+#else
+        /* removed since Linux 3.13 */
         handle = DEVICE_ACPI_HANDLE(&pdev->dev);
+#endif
         if (!handle) {
             pr_warn("cannot find ACPI handle for VGA device %s\n",
                 dev_name(&pdev->dev));