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| author | Michal Kazior <michal.kazior@tieto.com> | 2014-04-09 15:29:31 +0200 |
|---|---|---|
| committer | Johannes Berg <johannes.berg@intel.com> | 2014-04-25 17:08:30 +0200 |
| commit | 1f0d54cdcf822894cebebaa6cdc4e838c32bfb08 (patch) | |
| tree | b85f934fe7d5ced28f07e912636791066b231f34 /net/mac80211 | |
| parent | ed68ebcaf9688a15cbd249476334d37717d49468 (diff) | |
| download | linux-1f0d54cdcf822894cebebaa6cdc4e838c32bfb08.tar.gz linux-1f0d54cdcf822894cebebaa6cdc4e838c32bfb08.tar.bz2 linux-1f0d54cdcf822894cebebaa6cdc4e838c32bfb08.zip | |
mac80211: split ieee80211_free_chanctx()
The function did a little too much. Split it up so
the code can be easily reused in the future.
Signed-off-by: Michal Kazior <michal.kazior@tieto.com>
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Diffstat (limited to 'net/mac80211')
| -rw-r--r-- | net/mac80211/chan.c | 28 |
1 files changed, 16 insertions, 12 deletions
diff --git a/net/mac80211/chan.c b/net/mac80211/chan.c index 247133fe36bc..e4166b3af5d4 100644 --- a/net/mac80211/chan.c +++ b/net/mac80211/chan.c @@ -431,14 +431,11 @@ ieee80211_new_chanctx(struct ieee80211_local *local, return ctx; } -static void ieee80211_free_chanctx(struct ieee80211_local *local, - struct ieee80211_chanctx *ctx) +static void ieee80211_del_chanctx(struct ieee80211_local *local, + struct ieee80211_chanctx *ctx) { - bool check_single_channel = false; lockdep_assert_held(&local->chanctx_mtx); - WARN_ON_ONCE(ctx->refcount != 0); - if (!local->use_chanctx) { struct cfg80211_chan_def *chandef = &local->_oper_chandef; chandef->width = NL80211_CHAN_WIDTH_20_NOHT; @@ -448,8 +445,9 @@ static void ieee80211_free_chanctx(struct ieee80211_local *local, /* NOTE: Disabling radar is only valid here for * single channel context. To be sure, check it ... */ - if (local->hw.conf.radar_enabled) - check_single_channel = true; + WARN_ON(local->hw.conf.radar_enabled && + !list_empty(&local->chanctx_list)); + local->hw.conf.radar_enabled = false; ieee80211_hw_config(local, 0); @@ -457,13 +455,19 @@ static void ieee80211_free_chanctx(struct ieee80211_local *local, drv_remove_chanctx(local, ctx); } - list_del_rcu(&ctx->list); - kfree_rcu(ctx, rcu_head); + ieee80211_recalc_idle(local); +} - /* throw a warning if this wasn't the only channel context. */ - WARN_ON(check_single_channel && !list_empty(&local->chanctx_list)); +static void ieee80211_free_chanctx(struct ieee80211_local *local, + struct ieee80211_chanctx *ctx) +{ + lockdep_assert_held(&local->chanctx_mtx); - ieee80211_recalc_idle(local); + WARN_ON_ONCE(ctx->refcount != 0); + + list_del_rcu(&ctx->list); + ieee80211_del_chanctx(local, ctx); + kfree_rcu(ctx, rcu_head); } static void ieee80211_recalc_chanctx_chantype(struct ieee80211_local *local, |