cfg80211: remove pointless channel lookup in survey code

We have a channel pointer, and we use its center frequency
to look up a channel pointer - which will thus be exactly
the same as the original pointer.

Remove that pointless lookup and just use the pointer.

Signed-off-by: Johannes Berg <johannes.berg@intel.com>

diff --git a/net/wireless/nl80211.c b/net/wireless/nl80211.c
index 6e41777..b5e3c48 100644 (file)
--- a/net/wireless/nl80211.c
+++ b/net/wireless/nl80211.c
@@ -6562,8 +6562,6 @@ static int nl80211_dump_survey(struct sk_buff *skb,
        }
 
        while (1) {
-               struct ieee80211_channel *chan;
-
                res = rdev_dump_survey(rdev, wdev->netdev, survey_idx, &survey);
                if (res == -ENOENT)
                        break;
@@ -6576,9 +6574,7 @@ static int nl80211_dump_survey(struct sk_buff *skb,
                        goto out;
                }
 
-               chan = ieee80211_get_channel(&rdev->wiphy,
-                                            survey.channel->center_freq);
-               if (!chan || chan->flags & IEEE80211_CHAN_DISABLED) {
+               if (survey.channel->flags & IEEE80211_CHAN_DISABLED) {
                        survey_idx++;
                        continue;
                }