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mac80211: Modify mesh_set_ht_prot_mode() to have less identation

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Determining types of peers is modified to have less indentation. This change is
suggested by Johannes. This patch also corrects the reference in comment to
IEEE 802.11-2012 version.

Signed-off-by: Ashok Nagarajan <ashok@cozybit.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
This commit is contained in:
Ashok Nagarajan 2012-05-07 21:00:31 -07:00 committed by John W. Linville
parent 0e482db8d3
commit cbf9322eb1
1 changed files with 24 additions and 23 deletions
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47
net/mac80211/mesh_plink.c
View file

@ -105,15 +105,15 @@ static struct sta_info *mesh_plink_alloc(struct ieee80211_sub_if_data *sdata,
return sta;
}
/** mesh_set_ht_prot_mode - set correct HT protection mode
/*
* mesh_set_ht_prot_mode - set correct HT protection mode
*
* Section 9.23.3.5 of IEEE 80211s standard describes the protection rules for
* HT mesh STA in a MBSS. Three HT protection modes are supported for now,
* non-HT mixed mode, 20MHz-protection and no-protection mode. non-HT mixed
* mode is selected if any non-HT peers are present in our MBSS.
* 20MHz-protection mode is selected if all peers in our 20/40MHz MBSS support
* HT and atleast one HT20 peer is present. Otherwise no-protection mode is
* selected.
* Section 9.23.3.5 of IEEE 80211-2012 describes the protection rules for HT
* mesh STA in a MBSS. Three HT protection modes are supported for now, non-HT
* mixed mode, 20MHz-protection and no-protection mode. non-HT mixed mode is
* selected if any non-HT peers are present in our MBSS. 20MHz-protection mode
* is selected if all peers in our 20/40MHz MBSS support HT and atleast one
* HT20 peer is present. Otherwise no-protection mode is selected.
*/
static u32 mesh_set_ht_prot_mode(struct ieee80211_sub_if_data *sdata)
{
@ -128,21 +128,22 @@ static u32 mesh_set_ht_prot_mode(struct ieee80211_sub_if_data *sdata)
rcu_read_lock();
list_for_each_entry_rcu(sta, &local->sta_list, list) {
if (sdata == sta->sdata &&
sta->plink_state == NL80211_PLINK_ESTAB) {
switch (sta->ch_type) {
case NL80211_CHAN_NO_HT:
mpl_dbg("mesh_plink %pM: nonHT sta (%pM) is present",
sdata->vif.addr, sta->sta.addr);
non_ht_sta = true;
goto out;
case NL80211_CHAN_HT20:
mpl_dbg("mesh_plink %pM: HT20 sta (%pM) is present",
sdata->vif.addr, sta->sta.addr);
ht20_sta = true;
default:
break;
}
if (sdata != sta->sdata ||
sta->plink_state != NL80211_PLINK_ESTAB)
continue;
switch (sta->ch_type) {
case NL80211_CHAN_NO_HT:
mpl_dbg("mesh_plink %pM: nonHT sta (%pM) is present",
sdata->vif.addr, sta->sta.addr);
non_ht_sta = true;
goto out;
case NL80211_CHAN_HT20:
mpl_dbg("mesh_plink %pM: HT20 sta (%pM) is present",
sdata->vif.addr, sta->sta.addr);
ht20_sta = true;
default:
break;
}
}
out: