diff options
| author | Johannes Berg <johannes.berg@intel.com> | 2012-06-27 09:23:48 +0200 |
|---|---|---|
| committer | Johannes Berg <johannes.berg@intel.com> | 2012-06-27 17:55:11 +0200 |
| commit | dfb89c56add259b72a9c68d6b2846c1cd8c4e4b6 (patch) | |
| tree | 02a9c8a2995cb7f13b4461837cdf1e14648b1afb /net | |
| parent | cc45ae547b960b805ee0b201b3807e93a0060472 (diff) | |
| download | linux-dfb89c56add259b72a9c68d6b2846c1cd8c4e4b6.tar.gz linux-dfb89c56add259b72a9c68d6b2846c1cd8c4e4b6.tar.bz2 linux-dfb89c56add259b72a9c68d6b2846c1cd8c4e4b6.zip | |
cfg80211: don't allow WoWLAN support without CONFIG_PM
When CONFIG_PM is disabled, no device can possibly
support WoWLAN since it can't go to sleep to start
with. Due to this, mac80211 had even rejected the
hardware registration. By making all the code and
data for WoWLAN depend on CONFIG_PM we can promote
this runtime error to a compile-time error.
Add #ifdef around all WoWLAN code to remove it in
systems that don't need it as they never suspend.
Cc: Kalle Valo <kvalo@qca.qualcomm.com>
Acked-by: Luciano Coelho <coelho@ti.com>
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Diffstat (limited to 'net')
| -rw-r--r-- | net/mac80211/main.c | 7 | ||||
| -rw-r--r-- | net/wireless/core.c | 4 | ||||
| -rw-r--r-- | net/wireless/nl80211.c | 6 |
3 files changed, 13 insertions, 4 deletions
diff --git a/net/mac80211/main.c b/net/mac80211/main.c index 0b040fb73673..aded0018f6f3 100644 --- a/net/mac80211/main.c +++ b/net/mac80211/main.c @@ -706,12 +706,11 @@ int ieee80211_register_hw(struct ieee80211_hw *hw) local->hw.offchannel_tx_hw_queue >= local->hw.queues)) return -EINVAL; - if ((hw->wiphy->wowlan.flags || hw->wiphy->wowlan.n_patterns) #ifdef CONFIG_PM - && (!local->ops->suspend || !local->ops->resume) -#endif - ) + if ((hw->wiphy->wowlan.flags || hw->wiphy->wowlan.n_patterns) && + (!local->ops->suspend || !local->ops->resume)) return -EINVAL; +#endif if ((hw->flags & IEEE80211_HW_SCAN_WHILE_IDLE) && !local->ops->hw_scan) return -EINVAL; diff --git a/net/wireless/core.c b/net/wireless/core.c index 907f62c80e28..ddd32afa5f0a 100644 --- a/net/wireless/core.c +++ b/net/wireless/core.c @@ -421,9 +421,11 @@ int wiphy_register(struct wiphy *wiphy) int i; u16 ifmodes = wiphy->interface_modes; +#ifdef CONFIG_PM if (WARN_ON((wiphy->wowlan.flags & WIPHY_WOWLAN_GTK_REKEY_FAILURE) && !(wiphy->wowlan.flags & WIPHY_WOWLAN_SUPPORTS_GTK_REKEY))) return -EINVAL; +#endif if (WARN_ON(wiphy->ap_sme_capa && !(wiphy->flags & WIPHY_FLAG_HAVE_AP_SME))) @@ -500,12 +502,14 @@ int wiphy_register(struct wiphy *wiphy) return -EINVAL; } +#ifdef CONFIG_PM if (rdev->wiphy.wowlan.n_patterns) { if (WARN_ON(!rdev->wiphy.wowlan.pattern_min_len || rdev->wiphy.wowlan.pattern_min_len > rdev->wiphy.wowlan.pattern_max_len)) return -EINVAL; } +#endif /* check and set up bitrates */ ieee80211_set_bitrate_flags(wiphy); diff --git a/net/wireless/nl80211.c b/net/wireless/nl80211.c index 234ff3bbd104..067c9fe02a7f 100644 --- a/net/wireless/nl80211.c +++ b/net/wireless/nl80211.c @@ -1112,6 +1112,7 @@ static int nl80211_send_wiphy(struct sk_buff *msg, u32 pid, u32 seq, int flags, nla_nest_end(msg, nl_ifs); } +#ifdef CONFIG_PM if (dev->wiphy.wowlan.flags || dev->wiphy.wowlan.n_patterns) { struct nlattr *nl_wowlan; @@ -1152,6 +1153,7 @@ static int nl80211_send_wiphy(struct sk_buff *msg, u32 pid, u32 seq, int flags, nla_nest_end(msg, nl_wowlan); } +#endif if (nl80211_put_iftypes(msg, NL80211_ATTR_SOFTWARE_IFTYPES, dev->wiphy.software_iftypes)) @@ -6276,6 +6278,7 @@ static int nl80211_leave_mesh(struct sk_buff *skb, struct genl_info *info) return cfg80211_leave_mesh(rdev, dev); } +#ifdef CONFIG_PM static int nl80211_get_wowlan(struct sk_buff *skb, struct genl_info *info) { struct cfg80211_registered_device *rdev = info->user_ptr[0]; @@ -6504,6 +6507,7 @@ static int nl80211_set_wowlan(struct sk_buff *skb, struct genl_info *info) kfree(new_triggers.patterns); return err; } +#endif static int nl80211_set_rekey_data(struct sk_buff *skb, struct genl_info *info) { @@ -7158,6 +7162,7 @@ static struct genl_ops nl80211_ops[] = { .internal_flags = NL80211_FLAG_NEED_NETDEV_UP | NL80211_FLAG_NEED_RTNL, }, +#ifdef CONFIG_PM { .cmd = NL80211_CMD_GET_WOWLAN, .doit = nl80211_get_wowlan, @@ -7174,6 +7179,7 @@ static struct genl_ops nl80211_ops[] = { .internal_flags = NL80211_FLAG_NEED_WIPHY | NL80211_FLAG_NEED_RTNL, }, +#endif { .cmd = NL80211_CMD_SET_REKEY_OFFLOAD, .doit = nl80211_set_rekey_data, |