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mac80211: never pass NULL params to ieee80211_if_add()

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This isn't really a problem now, but it means that the function
has a few NULL checks that are only relevant when coming from
the initial interface added in mac80211, and that's confusing.
Just pass non-NULL (but equivalently empty) in that case and
remove all the NULL checks.

Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Signed-off-by: Luca Coelho <luciano.coelho@intel.com>
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
This commit is contained in:
Johannes Berg 2018-12-15 11:03:11 +02:00
parent 8020919a9b
commit dd665d23c1
2 changed files with 7 additions and 7 deletions
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10
net/mac80211/iface.c
View file

@ -1799,7 +1799,7 @@ int ieee80211_if_add(struct ieee80211_local *local, const char *name,
}
ieee80211_assign_perm_addr(local, ndev->perm_addr, type);
if (params && is_valid_ether_addr(params->macaddr))
if (is_valid_ether_addr(params->macaddr))
memcpy(ndev->dev_addr, params->macaddr, ETH_ALEN);
else
memcpy(ndev->dev_addr, ndev->perm_addr, ETH_ALEN);
@ -1868,11 +1868,9 @@ int ieee80211_if_add(struct ieee80211_local *local, const char *name,
ieee80211_setup_sdata(sdata, type);
if (ndev) {
if (params) {
ndev->ieee80211_ptr->use_4addr = params->use_4addr;
if (type == NL80211_IFTYPE_STATION)
sdata->u.mgd.use_4addr = params->use_4addr;
}
ndev->ieee80211_ptr->use_4addr = params->use_4addr;
if (type == NL80211_IFTYPE_STATION)
sdata->u.mgd.use_4addr = params->use_4addr;
ndev->features |= local->hw.netdev_features;

4
net/mac80211/main.c
View file

@ -1221,8 +1221,10 @@ int ieee80211_register_hw(struct ieee80211_hw *hw)
/* add one default STA interface if supported */
if (local->hw.wiphy->interface_modes & BIT(NL80211_IFTYPE_STATION) &&
!ieee80211_hw_check(hw, NO_AUTO_VIF)) {
struct vif_params params = {0};
result = ieee80211_if_add(local, "wlan%d", NET_NAME_ENUM, NULL,
NL80211_IFTYPE_STATION, NULL);
NL80211_IFTYPE_STATION, &params);
if (result)
wiphy_warn(local->hw.wiphy,
"Failed to add default virtual iface\n");