diff --git a/drivers/hv/vmbus_drv.c b/drivers/hv/vmbus_drv.c
index 398643bb67e2..5f168202755f 100644
--- a/drivers/hv/vmbus_drv.c
+++ b/drivers/hv/vmbus_drv.c
@@ -1192,7 +1192,7 @@ static ssize_t out_mask_show(const struct vmbus_channel *channel, char *buf)
 
 	return sprintf(buf, "%u\n", rbi->ring_buffer->interrupt_mask);
 }
-VMBUS_CHAN_ATTR_RO(out_mask);
+static VMBUS_CHAN_ATTR_RO(out_mask);
 
 static ssize_t in_mask_show(const struct vmbus_channel *channel, char *buf)
 {
@@ -1200,7 +1200,7 @@ static ssize_t in_mask_show(const struct vmbus_channel *channel, char *buf)
 
 	return sprintf(buf, "%u\n", rbi->ring_buffer->interrupt_mask);
 }
-VMBUS_CHAN_ATTR_RO(in_mask);
+static VMBUS_CHAN_ATTR_RO(in_mask);
 
 static ssize_t read_avail_show(const struct vmbus_channel *channel, char *buf)
 {
@@ -1208,7 +1208,7 @@ static ssize_t read_avail_show(const struct vmbus_channel *channel, char *buf)
 
 	return sprintf(buf, "%u\n", hv_get_bytes_to_read(rbi));
 }
-VMBUS_CHAN_ATTR_RO(read_avail);
+static VMBUS_CHAN_ATTR_RO(read_avail);
 
 static ssize_t write_avail_show(const struct vmbus_channel *channel, char *buf)
 {
@@ -1216,13 +1216,13 @@ static ssize_t write_avail_show(const struct vmbus_channel *channel, char *buf)
 
 	return sprintf(buf, "%u\n", hv_get_bytes_to_write(rbi));
 }
-VMBUS_CHAN_ATTR_RO(write_avail);
+static VMBUS_CHAN_ATTR_RO(write_avail);
 
 static ssize_t show_target_cpu(const struct vmbus_channel *channel, char *buf)
 {
 	return sprintf(buf, "%u\n", channel->target_cpu);
 }
-VMBUS_CHAN_ATTR(cpu, S_IRUGO, show_target_cpu, NULL);
+static VMBUS_CHAN_ATTR(cpu, S_IRUGO, show_target_cpu, NULL);
 
 static ssize_t channel_pending_show(const struct vmbus_channel *channel,
 				    char *buf)
@@ -1231,7 +1231,7 @@ static ssize_t channel_pending_show(const struct vmbus_channel *channel,
 		       channel_pending(channel,
 				       vmbus_connection.monitor_pages[1]));
 }
-VMBUS_CHAN_ATTR(pending, S_IRUGO, channel_pending_show, NULL);
+static VMBUS_CHAN_ATTR(pending, S_IRUGO, channel_pending_show, NULL);
 
 static ssize_t channel_latency_show(const struct vmbus_channel *channel,
 				    char *buf)
@@ -1240,19 +1240,19 @@ static ssize_t channel_latency_show(const struct vmbus_channel *channel,
 		       channel_latency(channel,
 				       vmbus_connection.monitor_pages[1]));
 }
-VMBUS_CHAN_ATTR(latency, S_IRUGO, channel_latency_show, NULL);
+static VMBUS_CHAN_ATTR(latency, S_IRUGO, channel_latency_show, NULL);
 
 static ssize_t channel_interrupts_show(const struct vmbus_channel *channel, char *buf)
 {
 	return sprintf(buf, "%llu\n", channel->interrupts);
 }
-VMBUS_CHAN_ATTR(interrupts, S_IRUGO, channel_interrupts_show, NULL);
+static VMBUS_CHAN_ATTR(interrupts, S_IRUGO, channel_interrupts_show, NULL);
 
 static ssize_t channel_events_show(const struct vmbus_channel *channel, char *buf)
 {
 	return sprintf(buf, "%llu\n", channel->sig_events);
 }
-VMBUS_CHAN_ATTR(events, S_IRUGO, channel_events_show, NULL);
+static VMBUS_CHAN_ATTR(events, S_IRUGO, channel_events_show, NULL);
 
 static struct attribute *vmbus_chan_attrs[] = {
 	&chan_attr_out_mask.attr,