提交 1da5fcc8 编写于 作者: J Johannes Berg

nl80211: clean up CQM settings code

Clean up the CQM settings code a bit and while at it
enforce that when setting the threshold to 0 (disable)
the hysteresis is also set to 0 to avoid confusion.
As we haven't enforce it, simply override userspace.
Signed-off-by: NJohannes Berg <johannes.berg@intel.com>
上级 ab1e8ad3
......@@ -7562,14 +7562,12 @@ static int nl80211_set_cqm_txe(struct genl_info *info,
u32 rate, u32 pkts, u32 intvl)
{
struct cfg80211_registered_device *rdev = info->user_ptr[0];
struct wireless_dev *wdev;
struct net_device *dev = info->user_ptr[1];
struct wireless_dev *wdev = dev->ieee80211_ptr;
if (rate > 100 || intvl > NL80211_CQM_TXE_MAX_INTVL)
return -EINVAL;
wdev = dev->ieee80211_ptr;
if (!rdev->ops->set_cqm_txe_config)
return -EOPNOTSUPP;
......@@ -7584,13 +7582,15 @@ static int nl80211_set_cqm_rssi(struct genl_info *info,
s32 threshold, u32 hysteresis)
{
struct cfg80211_registered_device *rdev = info->user_ptr[0];
struct wireless_dev *wdev;
struct net_device *dev = info->user_ptr[1];
struct wireless_dev *wdev = dev->ieee80211_ptr;
if (threshold > 0)
return -EINVAL;
wdev = dev->ieee80211_ptr;
/* disabling - hysteresis should also be zero then */
if (threshold == 0)
hysteresis = 0;
if (!rdev->ops->set_cqm_rssi_config)
return -EOPNOTSUPP;
......@@ -7609,36 +7609,33 @@ static int nl80211_set_cqm(struct sk_buff *skb, struct genl_info *info)
int err;
cqm = info->attrs[NL80211_ATTR_CQM];
if (!cqm) {
err = -EINVAL;
goto out;
}
if (!cqm)
return -EINVAL;
err = nla_parse_nested(attrs, NL80211_ATTR_CQM_MAX, cqm,
nl80211_attr_cqm_policy);
if (err)
goto out;
return err;
if (attrs[NL80211_ATTR_CQM_RSSI_THOLD] &&
attrs[NL80211_ATTR_CQM_RSSI_HYST]) {
s32 threshold;
u32 hysteresis;
threshold = nla_get_u32(attrs[NL80211_ATTR_CQM_RSSI_THOLD]);
hysteresis = nla_get_u32(attrs[NL80211_ATTR_CQM_RSSI_HYST]);
err = nl80211_set_cqm_rssi(info, threshold, hysteresis);
} else if (attrs[NL80211_ATTR_CQM_TXE_RATE] &&
attrs[NL80211_ATTR_CQM_TXE_PKTS] &&
attrs[NL80211_ATTR_CQM_TXE_INTVL]) {
u32 rate, pkts, intvl;
rate = nla_get_u32(attrs[NL80211_ATTR_CQM_TXE_RATE]);
pkts = nla_get_u32(attrs[NL80211_ATTR_CQM_TXE_PKTS]);
intvl = nla_get_u32(attrs[NL80211_ATTR_CQM_TXE_INTVL]);
err = nl80211_set_cqm_txe(info, rate, pkts, intvl);
} else
err = -EINVAL;
s32 threshold = nla_get_s32(attrs[NL80211_ATTR_CQM_RSSI_THOLD]);
u32 hysteresis = nla_get_u32(attrs[NL80211_ATTR_CQM_RSSI_HYST]);
out:
return err;
return nl80211_set_cqm_rssi(info, threshold, hysteresis);
}
if (attrs[NL80211_ATTR_CQM_TXE_RATE] &&
attrs[NL80211_ATTR_CQM_TXE_PKTS] &&
attrs[NL80211_ATTR_CQM_TXE_INTVL]) {
u32 rate = nla_get_u32(attrs[NL80211_ATTR_CQM_TXE_RATE]);
u32 pkts = nla_get_u32(attrs[NL80211_ATTR_CQM_TXE_PKTS]);
u32 intvl = nla_get_u32(attrs[NL80211_ATTR_CQM_TXE_INTVL]);
return nl80211_set_cqm_txe(info, rate, pkts, intvl);
}
return -EINVAL;
}
static int nl80211_join_mesh(struct sk_buff *skb, struct genl_info *info)
......
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