Drivers: hv: Change the signature of vmbus_set_event()

In preparation for supporting a per-connection signaling mechanism,
change the signature of vmbus_set_event(). This change is also
needed to implement other aspects of the signaling optimization.

Signed-off-by: K. Y. Srinivasan <kys@microsoft.com>
Reviewed-by: Haiyang Zhang <haiyangz@microsoft.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

3 files changed, 4 insertions, 3 deletions

diff --git a/drivers/hv/channel.c b/drivers/hv/channel.c
index 727c5f1d6acf..70a34daa04c1 100644
--- a/drivers/hv/channel.c
+++ b/drivers/hv/channel.c
@@ -55,7 +55,7 @@ static void vmbus_setevent(struct vmbus_channel *channel)
                                         [channel->monitor_grp].pending);
 
         } else {
-                vmbus_set_event(channel->offermsg.child_relid);
+                vmbus_set_event(channel);
         }
 }
 
diff --git a/drivers/hv/connection.c b/drivers/hv/connection.c
index 3f8ce7be4c18..0d8b13290e93 100644
--- a/drivers/hv/connection.c
+++ b/drivers/hv/connection.c
@@ -395,8 +395,9 @@ int vmbus_post_msg(void *buffer, size_t buflen)
 /*
  * vmbus_set_event - Send an event notification to the parent
  */
-int vmbus_set_event(u32 child_relid)
+int vmbus_set_event(struct vmbus_channel *channel)
 {
+        u32 child_relid = channel->offermsg.child_relid;
         /* Each u32 represents 32 channels */
         sync_set_bit(child_relid & 31,
                 (unsigned long *)vmbus_connection.send_int_page +
diff --git a/drivers/hv/hyperv_vmbus.h b/drivers/hv/hyperv_vmbus.h
index 61d2c4f6fc17..cd48ac331708 100644
--- a/drivers/hv/hyperv_vmbus.h
+++ b/drivers/hv/hyperv_vmbus.h
@@ -660,7 +660,7 @@ int vmbus_connect(void);
 
 int vmbus_post_msg(void *buffer, size_t buflen);
 
-int vmbus_set_event(u32 child_relid);
+int vmbus_set_event(struct vmbus_channel *channel);
 
 void vmbus_on_event(unsigned long data);