diff options
| author |   Dmitry Shmidt <dimitrysh@google.com> | 2015-10-07 11:32:53 +0200 |
|---|---|---|
| committer |   Johannes Berg <johannes.berg@intel.com> | 2015-10-13 10:32:17 +0200 |
| commit | 6e19bc4b7091ffd26586100eee78232b44427ec7 (patch) | |
| tree | 59d7cf810ede8dcf6ab66674c296738f35ae8bc7 /net/wireless/trace.h | |
| parent | Revert "mac80211: remove exposing 'mfp' to drivers" (diff) | |
| download | linux-dev-6e19bc4b7091ffd26586100eee78232b44427ec7.tar.xz linux-dev-6e19bc4b7091ffd26586100eee78232b44427ec7.zip | |
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/trace.h')
| -rw-r--r-- | net/wireless/trace.h | 22 |
1 files changed, 11 insertions, 11 deletions
diff --git a/net/wireless/trace.h b/net/wireless/trace.h index a808279a432a..0c392d36781b 100644 --- a/net/wireless/trace.h +++ b/net/wireless/trace.h @@ -2670,30 +2670,30 @@ TRACE_EVENT(cfg80211_get_bss, __entry->privacy) ); -TRACE_EVENT(cfg80211_inform_bss_width_frame, - TP_PROTO(struct wiphy *wiphy, struct ieee80211_channel *channel, - enum nl80211_bss_scan_width scan_width, - struct ieee80211_mgmt *mgmt, size_t len, - s32 signal), - TP_ARGS(wiphy, channel, scan_width, mgmt, len, signal), +TRACE_EVENT(cfg80211_inform_bss_frame, + TP_PROTO(struct wiphy *wiphy, struct cfg80211_inform_bss *data, + struct ieee80211_mgmt *mgmt, size_t len), + TP_ARGS(wiphy, data, mgmt, len), TP_STRUCT__entry( WIPHY_ENTRY CHAN_ENTRY __field(enum nl80211_bss_scan_width, scan_width) __dynamic_array(u8, mgmt, len) __field(s32, signal) + __field(u64, ts_boottime) ), TP_fast_assign( WIPHY_ASSIGN; - CHAN_ASSIGN(channel); - __entry->scan_width = scan_width; + CHAN_ASSIGN(data->chan); + __entry->scan_width = data->scan_width; if (mgmt) memcpy(__get_dynamic_array(mgmt), mgmt, len); - __entry->signal = signal; + __entry->signal = data->signal; + __entry->ts_boottime = data->boottime_ns; ), - TP_printk(WIPHY_PR_FMT ", " CHAN_PR_FMT "(scan_width: %d) signal: %d", + TP_printk(WIPHY_PR_FMT ", " CHAN_PR_FMT "(scan_width: %d) signal: %d, tsb:%llu", WIPHY_PR_ARG, CHAN_PR_ARG, __entry->scan_width, - __entry->signal) + __entry->signal, (unsigned long long)__entry->ts_boottime) ); DECLARE_EVENT_CLASS(cfg80211_bss_evt, |