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Drivers: hv: vmbus: Get rid of unnecessary state in hv_context

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Currently we are replicating state in struct hv_context that is unnecessary -
this state can be retrieved from the hypervisor. Furthermore, this is a per-cpu
state that is being maintained as a global state in struct hv_context.
Get rid of this state in struct hv_context.

Signed-off-by: K. Y. Srinivasan <kys@microsoft.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
This commit is contained in:
K. Y. Srinivasan 2018-10-18 05:09:28 +00:00 committed by Greg Kroah-Hartman
parent 78ef4193bb
commit a3cadf3850
2 changed files with 3 additions and 9 deletions
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10
drivers/hv/hv.c
View File

@ -33,9 +33,7 @@
#include "hyperv_vmbus.h"
/* The one and only */
struct hv_context hv_context = {
.synic_initialized = false,
};
struct hv_context hv_context;
/*
* If false, we're using the old mechanism for stimer0 interrupts
@ -326,8 +324,6 @@ int hv_synic_init(unsigned int cpu)
hv_set_synic_state(sctrl.as_uint64);
hv_context.synic_initialized = true;
/*
* Register the per-cpu clockevent source.
*/
@ -373,7 +369,8 @@ int hv_synic_cleanup(unsigned int cpu)
bool channel_found = false;
unsigned long flags;
if (!hv_context.synic_initialized)
hv_get_synic_state(sctrl.as_uint64);
if (sctrl.enable != 1)
return -EFAULT;
/*
@ -435,7 +432,6 @@ int hv_synic_cleanup(unsigned int cpu)
hv_set_siefp(siefp.as_uint64);
/* Disable the global synic bit */
hv_get_synic_state(sctrl.as_uint64);
sctrl.enable = 0;
hv_set_synic_state(sctrl.as_uint64);

2
drivers/hv/hyperv_vmbus.h
View File

@ -230,8 +230,6 @@ struct hv_context {
void *tsc_page;
bool synic_initialized;
struct hv_per_cpu_context __percpu *cpu_context;
/*