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authorJohannes Berg <johannes@sipsolutions.net>2010-01-25 13:36:36 +0100
committerJohn W. Linville <linville@tuxdriver.com>2010-01-25 16:36:29 -0500
commit723bae7ee44fd79c1cd3c7531ed581d373920774 (patch)
tree2f82c098aeb61694d4f6e1ec7f9bb3c29b7d43f3 /net/mac80211/work.c
parent382b16559d599c4260aeb82a5ea5ba44459d1cd2 (diff)
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.c17
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 */