From a9b9fbdf0a6a65359cd97254a282526822de5257 Mon Sep 17 00:00:00 2001 From: Mauro Carvalho Chehab Date: Sun, 10 Mar 2013 10:51:25 -0300 Subject: [media] siano: don't request statistics too fast As each DVBv3 call may generate an stats overhead, prevent doing it too fast. This is specially useful if a burst of get stats DVBv3 call is sent. Signed-off-by: Mauro Carvalho Chehab --- drivers/media/common/siano/smsdvb-main.c | 5 +++++ drivers/media/common/siano/smsdvb.h | 2 ++ 2 files changed, 7 insertions(+) (limited to 'drivers/media/common') diff --git a/drivers/media/common/siano/smsdvb-main.c b/drivers/media/common/siano/smsdvb-main.c index c14f10d5d6c0..4242005082ed 100644 --- a/drivers/media/common/siano/smsdvb-main.c +++ b/drivers/media/common/siano/smsdvb-main.c @@ -663,6 +663,11 @@ static int smsdvb_send_statistics_request(struct smsdvb_client_t *client) int rc; struct SmsMsgHdr_ST Msg; + /* Don't request stats too fast */ + if (client->get_stats_jiffies && + (!time_after(jiffies, client->get_stats_jiffies))) + return 0; + client->get_stats_jiffies = jiffies + msecs_to_jiffies(100); Msg.msgSrcId = DVBT_BDA_CONTROL_MSG_ID; Msg.msgDstId = HIF_TASK; diff --git a/drivers/media/common/siano/smsdvb.h b/drivers/media/common/siano/smsdvb.h index 09982bcf2535..34220696d87d 100644 --- a/drivers/media/common/siano/smsdvb.h +++ b/drivers/media/common/siano/smsdvb.h @@ -52,6 +52,8 @@ struct smsdvb_client_t { int event_fe_state; int event_unc_state; + unsigned long get_stats_jiffies; + /* Stats debugfs data */ struct dentry *debugfs; -- cgit v1.2.3