ALSA: intel8x0: move virtual environment detection code into one place
This is refactoring patch: preparation for add improved detection code.
Now all detection code placed in one place.
Signed-off-by: Konstantin Ozerkov <kozerkov@parallels.com>
Signed-off-by: Denis V. Lunev <den@openvz.org>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
diff --git a/sound/pci/intel8x0.c b/sound/pci/intel8x0.c
index c3b9bd0..2d4bb4c 100644
--- a/sound/pci/intel8x0.c
+++ b/sound/pci/intel8x0.c
@@ -2937,6 +2937,24 @@
ICH_PCR, ICH_SCR, ICH_SIS_TCR
};
+static int __devinit snd_intel8x0_inside_vm(void)
+{
+ int result = inside_vm;
+
+ if (result < 0) {
+ /* detect KVM and Parallels virtual environments */
+ result = kvm_para_available();
+#if defined(__i386__) || defined(__x86_64__)
+ result = result || boot_cpu_has(X86_FEATURE_HYPERVISOR);
+#endif
+ }
+
+ if (result)
+ printk(KERN_INFO "intel8x0: enable KVM optimization\n");
+
+ return result;
+}
+
static int __devinit snd_intel8x0_create(struct snd_card *card,
struct pci_dev *pci,
unsigned long device_type,
@@ -3004,9 +3022,7 @@
if (xbox)
chip->xbox = 1;
- chip->inside_vm = inside_vm;
- if (inside_vm)
- printk(KERN_INFO "intel8x0: enable KVM optimization\n");
+ chip->inside_vm = snd_intel8x0_inside_vm();
if (pci->vendor == PCI_VENDOR_ID_INTEL &&
pci->device == PCI_DEVICE_ID_INTEL_440MX)
@@ -3250,14 +3266,6 @@
buggy_irq = 0;
}
- if (inside_vm < 0) {
- /* detect KVM and Parallels virtual environments */
- inside_vm = kvm_para_available();
-#if defined(__i386__) || defined(__x86_64__)
- inside_vm = inside_vm || boot_cpu_has(X86_FEATURE_HYPERVISOR);
-#endif
- }
-
if ((err = snd_intel8x0_create(card, pci, pci_id->driver_data,
&chip)) < 0) {
snd_card_free(card);
