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| author | Johannes Berg <johannes@sipsolutions.net> | 2010-01-25 13:36:36 +0100 |
|---|---|---|
| committer | John W. Linville <linville@tuxdriver.com> | 2010-01-25 16:36:29 -0500 |
| commit | 723bae7ee44fd79c1cd3c7531ed581d373920774 (patch) | |
| tree | 2f82c098aeb61694d4f6e1ec7f9bb3c29b7d43f3 /net/mac80211/work.c | |
| parent | 382b16559d599c4260aeb82a5ea5ba44459d1cd2 (diff) | |
| download | lwn-723bae7ee44fd79c1cd3c7531ed581d373920774.tar.gz lwn-723bae7ee44fd79c1cd3c7531ed581d373920774.zip | |
mac80211: track work started through callbacks
Currently, the remain_on_channel work callback needs
to track in its own data structure whether the work
was just started or not. By reordering some code this
becomes unnecessary, the generic wk->started variable
can still be 'false' on the first invocation and only
be 'true' on actual timeout invocations, so that the
extra variable can be removed.
Signed-off-by: Johannes Berg <johannes@sipsolutions.net>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
Diffstat (limited to 'net/mac80211/work.c')
| -rw-r--r-- | net/mac80211/work.c | 17 |
1 files changed, 10 insertions, 7 deletions
diff --git a/net/mac80211/work.c b/net/mac80211/work.c index df8277cdb4d0..7e708d5c88b4 100644 --- a/net/mac80211/work.c +++ b/net/mac80211/work.c @@ -535,8 +535,7 @@ ieee80211_remain_on_channel_timeout(struct ieee80211_work *wk) * First time we run, do nothing -- the generic code will * have switched to the right channel etc. */ - if (!wk->remain.started) { - wk->remain.started = true; + if (!wk->started) { wk->timeout = jiffies + msecs_to_jiffies(wk->remain.duration); cfg80211_ready_on_channel(wk->sdata->dev, (unsigned long) wk, @@ -821,15 +820,17 @@ static void ieee80211_work_work(struct work_struct *work) mutex_lock(&local->work_mtx); list_for_each_entry_safe(wk, tmp, &local->work_list, list) { + bool started = wk->started; + /* mark work as started if it's on the current off-channel */ - if (!wk->started && local->tmp_channel && + if (!started && local->tmp_channel && wk->chan == local->tmp_channel && wk->chan_type == local->tmp_channel_type) { - wk->started = true; + started = true; wk->timeout = jiffies; } - if (!wk->started && !local->tmp_channel) { + if (!started && !local->tmp_channel) { /* * TODO: could optimize this by leaving the * station vifs in awake mode if they @@ -842,12 +843,12 @@ static void ieee80211_work_work(struct work_struct *work) local->tmp_channel = wk->chan; local->tmp_channel_type = wk->chan_type; ieee80211_hw_config(local, 0); - wk->started = true; + started = true; wk->timeout = jiffies; } /* don't try to work with items that aren't started */ - if (!wk->started) + if (!started) continue; if (time_is_after_jiffies(wk->timeout)) { @@ -882,6 +883,8 @@ static void ieee80211_work_work(struct work_struct *work) break; } + wk->started = started; + switch (rma) { case WORK_ACT_NONE: /* might have changed the timeout */ |