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authorJohannes Berg <johannes.berg@intel.com>2010-12-14 17:54:28 +0100
committerJohn W. Linville <linville@tuxdriver.com>2010-12-15 17:03:56 -0500
commita293911d4fd5e8593dbf478399a77f990d466269 (patch)
tree826f614f178e915c4d2c08aba9ca5b2a38f78c75 /net/wireless
parent14a085e77063090fb12ad391d0f4d46e593be225 (diff)
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nl80211: advertise maximum remain-on-channel duration
With the upcoming hardware offload implementation, some devices will have a different maximum duration for the remain-on-channel command. Advertise the maximum duration in mac80211, and make mac80211 set it. Signed-off-by: Johannes Berg <johannes.berg@intel.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
Diffstat (limited to 'net/wireless')
-rw-r--r--net/wireless/nl80211.c7
1 files changed, 6 insertions, 1 deletions
diff --git a/net/wireless/nl80211.c b/net/wireless/nl80211.c
index 53f044370cde..594a6ac8b9d2 100644
--- a/net/wireless/nl80211.c
+++ b/net/wireless/nl80211.c
@@ -755,6 +755,10 @@ static int nl80211_send_wiphy(struct sk_buff *msg, u32 pid, u32 seq, int flags,
nla_nest_end(msg, nl_cmds);
+ if (dev->ops->remain_on_channel)
+ NLA_PUT_U32(msg, NL80211_ATTR_MAX_REMAIN_ON_CHANNEL_DURATION,
+ dev->wiphy.max_remain_on_channel_duration);
+
/* for now at least assume all drivers have it */
if (dev->ops->mgmt_tx)
NLA_PUT_FLAG(msg, NL80211_ATTR_OFFCHANNEL_TX_OK);
@@ -4228,7 +4232,8 @@ static int nl80211_remain_on_channel(struct sk_buff *skb,
* We should be on that channel for at least one jiffie,
* and more than 5 seconds seems excessive.
*/
- if (!duration || !msecs_to_jiffies(duration) || duration > 5000)
+ if (!duration || !msecs_to_jiffies(duration) ||
+ duration > rdev->wiphy.max_remain_on_channel_duration)
return -EINVAL;
if (!rdev->ops->remain_on_channel)