svn commit: r300653 - head/sys/dev/hyperv/vmbus

[Sepherosa Ziehau]

Author: sephe
Date: Wed May 25 05:45:43 2016
New Revision: 300653
URL: https://svnweb.freebsd.org/changeset/base/300653

Log:
  hyperv/vmbus: Nuke unnecessary MSR read
  
  MFC after:	1 week
  Sponsored by:	Microsoft OSTC
  Differential Revision:	https://reviews.freebsd.org/D6528

Modified:
  head/sys/dev/hyperv/vmbus/hv_vmbus_drv_freebsd.c

Modified: head/sys/dev/hyperv/vmbus/hv_vmbus_drv_freebsd.c
==============================================================================
--- head/sys/dev/hyperv/vmbus/hv_vmbus_drv_freebsd.c	Wed May 25 05:37:42 2016	(r300652)
+++ head/sys/dev/hyperv/vmbus/hv_vmbus_drv_freebsd.c	Wed May 25 05:45:43 2016	(r300653)
@@ -215,16 +215,10 @@ vmbus_synic_setup(void *xsc)
 	hv_vmbus_synic_siefp	siefp;
 	hv_vmbus_synic_scontrol sctrl;
 	hv_vmbus_synic_sint	shared_sint;
-	uint64_t		version;
 
 	cpu = PCPU_GET(cpuid);
 
 	/*
-	 * TODO: Check the version
-	 */
-	version = rdmsr(HV_X64_MSR_SVERSION);
-
-	/*
 	 * Setup the Synic's message page
 	 */
 	simp.as_uint64_t = rdmsr(HV_X64_MSR_SIMP);