diff options
| author | Johannes Berg <johannes.berg@intel.com> | 2017-03-08 11:12:10 +0100 |
|---|---|---|
| committer | Johannes Berg <johannes.berg@intel.com> | 2017-03-08 14:20:01 +0100 |
| commit | e8e4f5280ddd0a7b43a795f90a0758e3c99df6a6 (patch) | |
| tree | 749391b6ba269af098d9ee4810b1dc24abf86d4a /net/mac80211/rate.h | |
| parent | mac80211: remove ieee80211_tx_rate_control.max_rate_idx (diff) | |
| download | linux-e8e4f5280ddd0a7b43a795f90a0758e3c99df6a6.tar.xz linux-e8e4f5280ddd0a7b43a795f90a0758e3c99df6a6.zip | |
mac80211: reject/clear user rate mask if not usable
If the user rate mask results in no (basic) rates being usable,
clear it. Also, if we're already operating when it's set, reject
it instead.
Technically, selecting basic rates as the criterion is a bit too
restrictive, but calculating the usable rates over all stations
(e.g. in AP mode) is harder, and all stations must support the
basic rates. Similarly, in client mode, the basic rates will be
used anyway for control frames.
This fixes the "no supported rates (...) in rate_mask ..." warning
that occurs on TX when you've selected a rate mask that's not
compatible with the connection (e.g. an AP that enables only the
rates 36, 48, 54 and you've selected only 6, 9, 12.)
Reported-by: Kirtika Ruchandani <kirtika@google.com>
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Diffstat (limited to 'net/mac80211/rate.h')
| -rw-r--r-- | net/mac80211/rate.h | 2 |
1 files changed, 2 insertions, 0 deletions
diff --git a/net/mac80211/rate.h b/net/mac80211/rate.h index d51a1cce4d4a..f7825ef5f871 100644 --- a/net/mac80211/rate.h +++ b/net/mac80211/rate.h @@ -110,6 +110,8 @@ static inline void rate_control_remove_sta_debugfs(struct sta_info *sta) #endif } +void ieee80211_check_rate_mask(struct ieee80211_sub_if_data *sdata); + /* Get a reference to the rate control algorithm. If `name' is NULL, get the * first available algorithm. */ int ieee80211_init_rate_ctrl_alg(struct ieee80211_local *local, |