cfg80211: add extensible feature flag attribute

With the wiphy::features flag being used up this patch adds a
new field wiphy::ext_features. Considering extensibility this
new field is declared as a byte array. This extensible flag is
exposed to user-space by NL80211_ATTR_EXT_FEATURES.

Cc: Avinash Patil <patila@marvell.com>
Signed-off-by: Gautam (Gautam Kumar) Shukla <gautams@broadcom.com>
Signed-off-by: Arend van Spriel <arend@broadcom.com>
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 702920134b34..689e1a8fd60a 100644
--- a/net/wireless/nl80211.c
+++ b/net/wireless/nl80211.c
@@ -1706,6 +1706,11 @@ static int nl80211_send_wiphy(struct cfg80211_registered_device *rdev,
                     nla_put_flag(msg, NL80211_ATTR_WIPHY_SELF_MANAGED_REG))
                         goto nla_put_failure;
 
+                if (nla_put(msg, NL80211_ATTR_EXT_FEATURES,
+                            sizeof(rdev->wiphy.ext_features),
+                            rdev->wiphy.ext_features))
+                        goto nla_put_failure;
+
                 /* done */
                 state->split_start = 0;
                 break;