diff options
| author | Dmitry Shmidt <dimitrysh@google.com> | 2015-10-07 12:32:53 +0300 |
|---|---|---|
| committer | Johannes Berg <johannes.berg@intel.com> | 2015-10-13 11:32:17 +0300 |
| commit | 6e19bc4b7091ffd26586100eee78232b44427ec7 (patch) | |
| tree | 59d7cf810ede8dcf6ab66674c296738f35ae8bc7 /net/wireless/nl80211.c | |
| parent | 93f0490e5deb9445737cabf0e436f3288a4042b7 (diff) | |
| download | linux-6e19bc4b7091ffd26586100eee78232b44427ec7.tar.xz | |
nl80211: allow BSS data to include CLOCK_BOOTTIME timestamp
For location and connectivity services, userspace would often like
to know the time when the BSS was last seen. The current "last seen"
value is calculated in a way that makes it less useful, especially
if the system suspended in the meantime.
Add the ability for the driver to report a real CLOCK_BOOTTIME stamp
that can then be reported to userspace (if present).
Drivers wishing to use this must be converted to the new API to call
cfg80211_inform_bss_data() or cfg80211_inform_bss_frame_data(). They
need to ensure the reported value is accurate enough even when the
frame might have been buffered in the device (e.g. firmware.)
Signed-off-by: Dmitry Shmidt <dimitrysh@google.com>
[modified to use struct, inlines]
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Diffstat (limited to 'net/wireless/nl80211.c')
| -rw-r--r-- | net/wireless/nl80211.c | 5 |
1 files changed, 5 insertions, 0 deletions
diff --git a/net/wireless/nl80211.c b/net/wireless/nl80211.c index f05ba8b7af61..fb0712b3d9cb 100644 --- a/net/wireless/nl80211.c +++ b/net/wireless/nl80211.c @@ -6605,6 +6605,11 @@ static int nl80211_send_bss(struct sk_buff *msg, struct netlink_callback *cb, jiffies_to_msecs(jiffies - intbss->ts))) goto nla_put_failure; + if (intbss->ts_boottime && + nla_put_u64(msg, NL80211_BSS_LAST_SEEN_BOOTTIME, + intbss->ts_boottime)) + goto nla_put_failure; + switch (rdev->wiphy.signal_type) { case CFG80211_SIGNAL_TYPE_MBM: if (nla_put_u32(msg, NL80211_BSS_SIGNAL_MBM, res->signal)) |