This callback is called by main loop before polling s->fd, if it returns
false, the fd will not be polled in this iteration.
This is redundant with checks inside read callback. After this patch,
the data will be copied from s->fd to s->msgvec when it arrives. If the
device can't receive, it will be queued to incoming_queue, and when the
device status changes, this queue will be flushed.
Signed-off-by: Fam Zheng <f...@redhat.com>
---
net/l2tpv3.c | 11 +----------
1 file changed, 1 insertion(+), 10 deletions(-)
diff --git a/net/l2tpv3.c b/net/l2tpv3.c
index ed395dc..99d80b6 100644
--- a/net/l2tpv3.c
+++ b/net/l2tpv3.c
@@ -133,14 +133,12 @@ typedef struct NetL2TPV3State {
} NetL2TPV3State;
-static int l2tpv3_can_send(void *opaque);
static void net_l2tpv3_send(void *opaque);
static void l2tpv3_writable(void *opaque);
static void l2tpv3_update_fd_handler(NetL2TPV3State *s)
{
- qemu_set_fd_handler2(s->fd,
- s->read_poll ? l2tpv3_can_send : NULL,
+ qemu_set_fd_handler2(s->fd, NULL,
s->read_poll ? net_l2tpv3_send : NULL,
s->write_poll ? l2tpv3_writable : NULL,
s);
@@ -169,13 +167,6 @@ static void l2tpv3_writable(void *opaque)
qemu_flush_queued_packets(&s->nc);
}
-static int l2tpv3_can_send(void *opaque)
-{
- NetL2TPV3State *s = opaque;
-
- return qemu_can_send_packet(&s->nc);
-}
-
static void l2tpv3_send_completed(NetClientState *nc, ssize_t len)
{
NetL2TPV3State *s = DO_UPCAST(NetL2TPV3State, nc, nc);
--
2.4.2
