[PATCH 4.4 110/193] Drivers: hv: vmbus: fix build warning
From: Greg Kroah-Hartman
Date: Fri Feb 23 2018 - 13:37:57 EST
4.4-stable review patch. If anyone has any objections, please let me know.
------------------
From: Sudip Mukherjee <sudipm.mukherjee@xxxxxxxxx>
commit 9220e39b5c900c67ddcb517d52fe52d90fb5e3c8 upstream.
We were getting build warning about unused variable "tsc_msr" and
"va_tsc" while building for i386 allmodconfig.
Signed-off-by: Sudip Mukherjee <sudip@xxxxxxxxxxxxxxx>
Signed-off-by: Greg Kroah-Hartman <gregkh@xxxxxxxxxxxxxxxxxxx>
---
drivers/hv/hv.c | 5 +++--
1 file changed, 3 insertions(+), 2 deletions(-)
--- a/drivers/hv/hv.c
+++ b/drivers/hv/hv.c
@@ -195,9 +195,7 @@ int hv_init(void)
{
int max_leaf;
union hv_x64_msr_hypercall_contents hypercall_msr;
- union hv_x64_msr_hypercall_contents tsc_msr;
void *virtaddr = NULL;
- void *va_tsc = NULL;
memset(hv_context.synic_event_page, 0, sizeof(void *) * NR_CPUS);
memset(hv_context.synic_message_page, 0,
@@ -243,6 +241,9 @@ int hv_init(void)
#ifdef CONFIG_X86_64
if (ms_hyperv.features & HV_X64_MSR_REFERENCE_TSC_AVAILABLE) {
+ union hv_x64_msr_hypercall_contents tsc_msr;
+ void *va_tsc;
+
va_tsc = __vmalloc(PAGE_SIZE, GFP_KERNEL, PAGE_KERNEL);
if (!va_tsc)
goto cleanup;