[PATCH 1/2] relay: remove unused function argument actor

["zhangwei(Jovi)" <jovi.zhangwei@huawei.com>]

Currently argument actor is never used in relay reading path,
so remote it.

Signed-off-by: zhangwei(Jovi) <jovi.zhangwei@huawei.com>
---
 kernel/relay.c |   12 ++++--------
 1 file changed, 4 insertions(+), 8 deletions(-)

diff --git a/kernel/relay.c b/kernel/relay.c
index 01ab081..d21006c 100644
--- a/kernel/relay.c
+++ b/kernel/relay.c
@@ -1099,8 +1099,7 @@ static size_t relay_file_read_end_pos(struct rchan_buf *buf,
 static int subbuf_read_actor(size_t read_start,
 			     struct rchan_buf *buf,
 			     size_t avail,
-			     read_descriptor_t *desc,
-			     read_actor_t actor)
+			     read_descriptor_t *desc)
 {
 	void *from;
 	int ret = 0;
@@ -1121,15 +1120,13 @@ static int subbuf_read_actor(size_t read_start,
 typedef int (*subbuf_actor_t) (size_t read_start,
 			       struct rchan_buf *buf,
 			       size_t avail,
-			       read_descriptor_t *desc,
-			       read_actor_t actor);
+			       read_descriptor_t *desc);

 /*
  *	relay_file_read_subbufs - read count bytes, bridging subbuf boundaries
  */
 static ssize_t relay_file_read_subbufs(struct file *filp, loff_t *ppos,
 					subbuf_actor_t subbuf_actor,
-					read_actor_t actor,
 					read_descriptor_t *desc)
 {
 	struct rchan_buf *buf = filp->private_data;
@@ -1150,7 +1147,7 @@ static ssize_t relay_file_read_subbufs(struct file *filp, loff_t *ppos,
 			break;

 		avail = min(desc->count, avail);
-		ret = subbuf_actor(read_start, buf, avail, desc, actor);
+		ret = subbuf_actor(read_start, buf, avail, desc);
 		if (desc->error < 0)
 			break;

@@ -1174,8 +1171,7 @@ static ssize_t relay_file_read(struct file *filp,
 	desc.count = count;
 	desc.arg.buf = buffer;
 	desc.error = 0;
-	return relay_file_read_subbufs(filp, ppos, subbuf_read_actor,
-				       NULL, &desc);
+	return relay_file_read_subbufs(filp, ppos, subbuf_read_actor, &desc);
 }

 static void relay_consume_bytes(struct rchan_buf *rbuf, int bytes_consumed)
-- 
1.7.9.7