nl80211: add an attribute to allow delaying the first scheduled scan cycle

The userspace may want to delay the the first scheduled scan or
net-detect cycle.  Add an optional attribute to the scheduled scan
configuration to pass the delay to be (optionally) used by the driver.

Signed-off-by: Luciano Coelho <luciano.coelho@intel.com>
[add the attribute to the policy to validate it]
Signed-off-by: Johannes Berg <johannes.berg@intel.com>

1 files changed, 5 insertions, 0 deletions

diff --git a/net/wireless/nl80211.c b/net/wireless/nl80211.c
index c64100ec79e3..4542e8683beb 100644
--- a/net/wireless/nl80211.c
+++ b/net/wireless/nl80211.c
@@ -398,6 +398,7 @@ static const struct nla_policy nl80211_policy[NUM_NL80211_ATTR] = {
         [NL80211_ATTR_MAC_MASK] = { .len = ETH_ALEN },
         [NL80211_ATTR_WIPHY_SELF_MANAGED_REG] = { .type = NLA_FLAG },
         [NL80211_ATTR_NETNS_FD] = { .type = NLA_U32 },
+        [NL80211_ATTR_SCHED_SCAN_DELAY] = { .type = NLA_U32 },
 };
 
 /* policy for the key attributes */
@@ -6205,6 +6206,10 @@ nl80211_parse_sched_scan(struct wiphy *wiphy, struct wireless_dev *wdev,
                 }
         }
 
+        if (attrs[NL80211_ATTR_SCHED_SCAN_DELAY])
+                request->delay =
+                        nla_get_u32(attrs[NL80211_ATTR_SCHED_SCAN_DELAY]);
+
         request->interval = interval;
         request->scan_start = jiffies;