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nl80211: clarify code in nl80211_del_station()

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The long if chain of interface types is hard to read,
especially now with the additional condition after it.
Use a switch statement to clarify this code.

Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Link: https://lore.kernel.org/r/20200320113834.2c51b9e8e341.I3fa5dc3f7d3cb1dbbd77191d764586f7da993f3f@changeid
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
This commit is contained in:
Johannes Berg 2020-03-20 11:38:35 +01:00
parent 7fc82af856
commit 306b79ea6e
1 changed files with 14 additions and 8 deletions
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22
net/wireless/nl80211.c
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@ -6285,16 +6285,22 @@ static int nl80211_del_station(struct sk_buff *skb, struct genl_info *info)
if (info->attrs[NL80211_ATTR_MAC])
params.mac = nla_data(info->attrs[NL80211_ATTR_MAC]);
if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_AP &&
dev->ieee80211_ptr->iftype != NL80211_IFTYPE_AP_VLAN &&
dev->ieee80211_ptr->iftype != NL80211_IFTYPE_MESH_POINT &&
dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_GO &&
dev->ieee80211_ptr->iftype != NL80211_IFTYPE_ADHOC)
switch (dev->ieee80211_ptr->iftype) {
case NL80211_IFTYPE_AP:
case NL80211_IFTYPE_AP_VLAN:
case NL80211_IFTYPE_MESH_POINT:
case NL80211_IFTYPE_P2P_GO:
/* always accept these */
break;
case NL80211_IFTYPE_ADHOC:
/* conditionally accept */
if (wiphy_ext_feature_isset(&rdev->wiphy,
NL80211_EXT_FEATURE_DEL_IBSS_STA))
break;
return -EINVAL;
if (dev->ieee80211_ptr->iftype == NL80211_IFTYPE_ADHOC &&
!wiphy_ext_feature_isset(&rdev->wiphy,
NL80211_EXT_FEATURE_DEL_IBSS_STA))
default:
return -EINVAL;
}
if (!rdev->ops->del_station)
return -EOPNOTSUPP;