diff options
| author | Johannes Berg <johannes.berg@intel.com> | 2013-10-26 19:14:38 +0400 |
|---|---|---|
| committer | Johannes Berg <johannes.berg@intel.com> | 2013-11-25 23:50:40 +0400 |
| commit | 00c3a6ed649c3305b52ff51e187717365aa39d4a (patch) | |
| tree | fafb8473f2265d56e082a54f5d0eca1917d3c2fc /net | |
| parent | 0f0094b3c7b8fef51f1ea6a0abc08b99d1444506 (diff) | |
| download | linux-00c3a6ed649c3305b52ff51e187717365aa39d4a.tar.xz | |
cfg80211: don't allow drivers to unset NL80211_FEATURE_SCAN_FLUSH
As the flag is entirely implemented in cfg80211, it should
have been a global feature flag (which I believe didn't
exist at the time). However, there's no reason to allow
drivers to unset the flag, so don't allow it and remove
the validation of NL80211_SCAN_FLAG_FLUSH.
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Diffstat (limited to 'net')
| -rw-r--r-- | net/wireless/core.c | 4 | ||||
| -rw-r--r-- | net/wireless/nl80211.c | 12 |
2 files changed, 6 insertions, 10 deletions
diff --git a/net/wireless/core.c b/net/wireless/core.c index aff959e5a1b3..9dca0925a1a9 100644 --- a/net/wireless/core.c +++ b/net/wireless/core.c @@ -357,8 +357,6 @@ struct wiphy *wiphy_new(const struct cfg80211_ops *ops, int sizeof_priv) rdev->wiphy.rts_threshold = (u32) -1; rdev->wiphy.coverage_class = 0; - rdev->wiphy.features = NL80211_FEATURE_SCAN_FLUSH; - return &rdev->wiphy; } EXPORT_SYMBOL(wiphy_new); @@ -566,6 +564,8 @@ int wiphy_register(struct wiphy *wiphy) /* check and set up bitrates */ ieee80211_set_bitrate_flags(wiphy); + rdev->wiphy.features |= NL80211_FEATURE_SCAN_FLUSH; + rtnl_lock(); res = device_add(&rdev->wiphy.dev); if (res) { diff --git a/net/wireless/nl80211.c b/net/wireless/nl80211.c index e2bb4276af1a..1ad11de6dd2f 100644 --- a/net/wireless/nl80211.c +++ b/net/wireless/nl80211.c @@ -5342,10 +5342,8 @@ static int nl80211_trigger_scan(struct sk_buff *skb, struct genl_info *info) if (info->attrs[NL80211_ATTR_SCAN_FLAGS]) { request->flags = nla_get_u32( info->attrs[NL80211_ATTR_SCAN_FLAGS]); - if (((request->flags & NL80211_SCAN_FLAG_LOW_PRIORITY) && - !(wiphy->features & NL80211_FEATURE_LOW_PRIORITY_SCAN)) || - ((request->flags & NL80211_SCAN_FLAG_FLUSH) && - !(wiphy->features & NL80211_FEATURE_SCAN_FLUSH))) { + if ((request->flags & NL80211_SCAN_FLAG_LOW_PRIORITY) && + !(wiphy->features & NL80211_FEATURE_LOW_PRIORITY_SCAN)) { err = -EOPNOTSUPP; goto out_free; } @@ -5585,10 +5583,8 @@ static int nl80211_start_sched_scan(struct sk_buff *skb, if (info->attrs[NL80211_ATTR_SCAN_FLAGS]) { request->flags = nla_get_u32( info->attrs[NL80211_ATTR_SCAN_FLAGS]); - if (((request->flags & NL80211_SCAN_FLAG_LOW_PRIORITY) && - !(wiphy->features & NL80211_FEATURE_LOW_PRIORITY_SCAN)) || - ((request->flags & NL80211_SCAN_FLAG_FLUSH) && - !(wiphy->features & NL80211_FEATURE_SCAN_FLUSH))) { + if ((request->flags & NL80211_SCAN_FLAG_LOW_PRIORITY) && + !(wiphy->features & NL80211_FEATURE_LOW_PRIORITY_SCAN)) { err = -EOPNOTSUPP; goto out_free; } |