block: remove unneeded parenthesis from blk-sysfs

Align to common code conventions.
Signed-off-by: Max Gurtovoy <mgurtovoy@nvidia.com>
Link: https://lore.kernel.org/r/20210511155319.1885277-1-mgurtovoy@nvidia.comSigned-off-by: Jens Axboe <axboe@kernel.dk>

block/blk-sysfs.c

@@ -91,7 +91,7 @@ static ssize_t queue_ra_show(struct request_queue *q, char *page)
 	unsigned long ra_kb = q->backing_dev_info->ra_pages <<
 					(PAGE_SHIFT - 10);
 
-	return queue_var_show(ra_kb, (page));
+	return queue_var_show(ra_kb, page);
 }
 
 static ssize_t
@@ -112,28 +112,28 @@ static ssize_t queue_max_sectors_show(struct request_queue *q, char *page)
 {
 	int max_sectors_kb = queue_max_sectors(q) >> 1;
 
-	return queue_var_show(max_sectors_kb, (page));
+	return queue_var_show(max_sectors_kb, page);
 }
 
 static ssize_t queue_max_segments_show(struct request_queue *q, char *page)
 {
-	return queue_var_show(queue_max_segments(q), (page));
+	return queue_var_show(queue_max_segments(q), page);
 }
 
 static ssize_t queue_max_discard_segments_show(struct request_queue *q,
 		char *page)
 {
-	return queue_var_show(queue_max_discard_segments(q), (page));
+	return queue_var_show(queue_max_discard_segments(q), page);
 }
 
 static ssize_t queue_max_integrity_segments_show(struct request_queue *q, char *page)
 {
-	return queue_var_show(q->limits.max_integrity_segments, (page));
+	return queue_var_show(q->limits.max_integrity_segments, page);
 }
 
 static ssize_t queue_max_segment_size_show(struct request_queue *q, char *page)
 {
-	return queue_var_show(queue_max_segment_size(q), (page));
+	return queue_var_show(queue_max_segment_size(q), page);
 }
 
 static ssize_t queue_logical_block_size_show(struct request_queue *q, char *page)
@@ -261,12 +261,12 @@ static ssize_t queue_max_hw_sectors_show(struct request_queue *q, char *page)
 {
 	int max_hw_sectors_kb = queue_max_hw_sectors(q) >> 1;
 
-	return queue_var_show(max_hw_sectors_kb, (page));
+	return queue_var_show(max_hw_sectors_kb, page);
 }
 
 static ssize_t queue_virt_boundary_mask_show(struct request_queue *q, char *page)
 {
-	return queue_var_show(q->limits.virt_boundary_mask, (page));
+	return queue_var_show(q->limits.virt_boundary_mask, page);
 }
 
 #define QUEUE_SYSFS_BIT_FNS(name, flag, neg)				\