From: Andrew Cooper <andrew.cooper3@citrix.com>
Date: Fri, 9 Jan 2015 16:22:42 +0000 (+0100)
Subject: x86/apic: remove redundant LVR read in init_bsp_APIC()
X-Git-Tag: archive/raspbian/4.8.0-1+rpi1~1^2~3963
X-Git-Url: https://dgit.raspbian.org/?a=commitdiff_plain;h=d2ee7b0fca1f8ff045ef66c9ebbc032faaad4a0c;p=xen.git

x86/apic: remove redundant LVR read in init_bsp_APIC()

'ver' became unused by c/s 0b964c0c7 "x86/LAPIC: drop support for
non-integrated APIC", which in turn makes the LVR read redundant.

Signed-off-by: Andrew Cooper <andrew.cooper3@citrix.com>
Reviewed-by: Tim Deegan <tim@xen.org>
---

diff --git a/xen/arch/x86/apic.c b/xen/arch/x86/apic.c
index 1de693f102..39cd9e5202 100644
--- a/xen/arch/x86/apic.c
+++ b/xen/arch/x86/apic.c
@@ -434,7 +434,7 @@ void __init sync_Arb_IDs(void)
  */
 void __init init_bsp_APIC(void)
 {
-    unsigned long value, ver;
+    unsigned long value;
 
     /*
      * Don't do the setup now if we have a SMP BIOS as the
@@ -443,9 +443,6 @@ void __init init_bsp_APIC(void)
     if (smp_found_config || !cpu_has_apic)
         return;
 
-    value = apic_read(APIC_LVR);
-    ver = GET_APIC_VERSION(value);
-    
     /*
      * Do not trust the local APIC being empty at bootup.
      */