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Drivers: hv: vmbus: Cleanup vmbus_set_event() 

Cleanup vmbus_set_event() by inlining the hypercall to post
the event and since the return value of vmbus_set_event() is not checked,
make it void. As part of this cleanup, get rid of the function
hv_signal_event() as it is only callled from vmbus_set_event().

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 2015-12-21 15:12:20 -08:00 committed by Greg Kroah-Hartman
parent 5fae054c2b
commit 1b807e1011
3 changed files with 3 additions and 21 deletions
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4
drivers/hv/connection.c
View File

@ -474,7 +474,7 @@ int vmbus_post_msg(void *buffer, size_t buflen)
/* /*
* vmbus_set_event - Send an event notification to the parent * vmbus_set_event - Send an event notification to the parent
*/ */
int vmbus_set_event(struct vmbus_channel *channel) void vmbus_set_event(struct vmbus_channel *channel)
{ {
u32 child_relid = channel->offermsg.child_relid; u32 child_relid = channel->offermsg.child_relid;
@ -485,5 +485,5 @@ int vmbus_set_event(struct vmbus_channel *channel)
(child_relid >> 5)); (child_relid >> 5));
} }
return hv_signal_event(channel->sig_event); hv_do_hypercall(HVCALL_SIGNAL_EVENT, channel->sig_event, NULL);
} }

16
drivers/hv/hv.c
View File

@ -337,22 +337,6 @@ int hv_post_message(union hv_connection_id connection_id,
return status & 0xFFFF; return status & 0xFFFF;
} }
/*
* hv_signal_event -
* Signal an event on the specified connection using the hypervisor event IPC.
*
* This involves a hypercall.
*/
int hv_signal_event(void *con_id)
{
u64 status;
status = hv_do_hypercall(HVCALL_SIGNAL_EVENT, con_id, NULL);
return status & 0xFFFF;
}
static int hv_ce_set_next_event(unsigned long delta, static int hv_ce_set_next_event(unsigned long delta,
struct clock_event_device *evt) struct clock_event_device *evt)
{ {

4
drivers/hv/hyperv_vmbus.h
View File

@ -501,8 +501,6 @@ extern int hv_post_message(union hv_connection_id connection_id,
enum hv_message_type message_type, enum hv_message_type message_type,
void *payload, size_t payload_size); void *payload, size_t payload_size);
extern int hv_signal_event(void *con_id);
extern int hv_synic_alloc(void); extern int hv_synic_alloc(void);
extern void hv_synic_free(void); extern void hv_synic_free(void);
@ -650,7 +648,7 @@ void vmbus_disconnect(void);
int vmbus_post_msg(void *buffer, size_t buflen); int vmbus_post_msg(void *buffer, size_t buflen);
int vmbus_set_event(struct vmbus_channel *channel); void vmbus_set_event(struct vmbus_channel *channel);
void vmbus_on_event(unsigned long data); void vmbus_on_event(unsigned long data);