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From: Ben Greear <greearb@candelatech.com>
To: "linux-wireless@vger.kernel.org" <linux-wireless@vger.kernel.org>
Subject: RFC:  Add precise timing to wifi association messages?
Date: Wed, 13 Nov 2013 09:58:14 -0800	[thread overview]
Message-ID: <5283BDB6.5020700@candelatech.com> (raw)

Any interest in a patch looking similar to that below for the
5 or so messages related to association?  I found it useful for
tracking down why it was taking longer than expected to roam
to a new AP...


diff --git a/net/mac80211/mlme.c b/net/mac80211/mlme.c
index d2510c0..2e96813 100644
--- a/net/mac80211/mlme.c
+++ b/net/mac80211/mlme.c
@@ -908,6 +908,12 @@ static void ieee80211_send_assoc(struct ieee80211_sub_if_data *sdata)
                memcpy(pos, assoc_data->ie + offset, noffset - offset);
        }

+       {
+               struct timeval tv;
+               do_gettimeofday(&tv);
+               sdata_info(sdata, "send_assoc, calling prepare_tx at: %lu.%lu\n",
+                          tv.tv_sec, tv.tv_usec);
+       }
        drv_mgd_prepare_tx(local, sdata);

        IEEE80211_SKB_CB(skb)->flags |= IEEE80211_TX_INTFL_DONT_ENCRYPT;


Thanks,
Ben

-- 
Ben Greear <greearb@candelatech.com>
Candela Technologies Inc  http://www.candelatech.com


             reply	other threads:[~2013-11-13 17:58 UTC|newest]

Thread overview: 6+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2013-11-13 17:58 Ben Greear [this message]
2013-11-13 18:01 ` RFC: Add precise timing to wifi association messages? Ben Greear
2013-11-13 18:18   ` Johannes Berg
2013-11-13 18:24     ` Ben Greear
2013-11-13 18:32       ` Johannes Berg
2013-11-13 18:39         ` Ben Greear

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