Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net

Pull networking fixes from David Miller:

 1) Fix regression allowing IP_TTL setting of zero, fix from Cong Wang.

 2) Fix leak regressions in tunap, from Jason Wang.

 3) be2net driver always returns IRQ_HANDLED in INTx handler, fix from
    Sathya Perla.

 4) qlge doesn't really support NETIF_F_TSO6, don't set that flag.  Fix
    from Amerigo Wang.

 5) Add 802.11ad Atheros wil6210 driver, from Vladimir Kondratiev.

 6) Fix MTU calculations in mac80211 layer, from T Krishna Chaitanya.

 7) Station info layer of mac80211 needs to use del_timer_sync(), from
    Johannes Berg.

 8) tcp_read_sock() can loop forever, because we don't immediately stop
    when recv_actor() returns zero.  Fix from Eric Dumazet.

 9) Fix WARN_ON() in tcp_cleanup_rbuf().  We have to use sk_eat_skb() in
    tcp_recv_skb() to handle the case where a large GRO packet is split
    up while it is use by a splice() operation.  Fix also from Eric
    Dumazet.

10) addrconf_get_prefix_route() in ipv6 tests flags incorrectly, it
    does:

        if (X && (p->flags & Y) != 0)

    when it really meant to go:

        if (X && (p->flags & X) != 0)

    fix from Romain Kuntz.

11) Fix lost Kconfig dependency for bfin_mac driver hardware
    timestamping.  From Lars-Peter Clausen.

12) Fix regression in handling of RST without ACK in TCP, from Eric
    Dumazet.

* git://git.kernel.org/pub/scm/linux/kernel/git/davem/net: (37 commits)
  be2net: fix unconditionally returning IRQ_HANDLED in INTx
  tuntap: fix leaking reference count
  tuntap: forbid calling TUNSETIFF when detached
  tuntap: switch to use rtnl_dereference()
  net, wireless: overwrite default_ethtool_ops
  qlge: remove NETIF_F_TSO6 flag
  tcp: accept RST without ACK flag
  net: ethernet: xilinx: Do not use NO_IRQ in axienet
  net: ethernet: xilinx: Do not use axienet on PPC
  bnx2x: Allow management traffic after boot from SAN
  bnx2x: Fix fastpath structures when memory allocation fails
  bfin_mac: Restore hardware time-stamping dependency on BF518
  tun: avoid owner checks on IFF_ATTACH_QUEUE
  bnx2x: move debugging code before the return
  tuntap: refuse to re-attach to different tun_struct
  ipv6: use addrconf_get_prefix_route for prefix route lookup [v2]
  ipv6: fix the noflags test in addrconf_get_prefix_route
  tcp: fix splice() and tcp collapsing interaction
  tcp: splice: fix an infinite loop in tcp_read_sock()
  net: prevent setting ttl=0 via IP_TTL
  ...

1 files changed, 24 insertions, 22 deletions

diff --git a/net/mac80211/scan.c b/net/mac80211/scan.c
index 8ed83dcc149f..d59fc6818b1c 100644
--- a/net/mac80211/scan.c
+++ b/net/mac80211/scan.c
@@ -113,18 +113,6 @@ ieee80211_bss_info_update(struct ieee80211_local *local,
 			bss->valid_data |= IEEE80211_BSS_VALID_ERP;
 	}
 
-	if (elems->tim && (!elems->parse_error ||
-			   !(bss->valid_data & IEEE80211_BSS_VALID_DTIM))) {
-		struct ieee80211_tim_ie *tim_ie = elems->tim;
-		bss->dtim_period = tim_ie->dtim_period;
-		if (!elems->parse_error)
-			bss->valid_data |= IEEE80211_BSS_VALID_DTIM;
-	}
-
-	/* If the beacon had no TIM IE, or it was invalid, use 1 */
-	if (beacon && !bss->dtim_period)
-		bss->dtim_period = 1;
-
 	/* replace old supported rates if we get new values */
 	if (!elems->parse_error ||
 	    !(bss->valid_data & IEEE80211_BSS_VALID_RATES)) {
@@ -832,9 +820,9 @@ int ieee80211_request_scan(struct ieee80211_sub_if_data *sdata,
 	return res;
 }
 
-int ieee80211_request_internal_scan(struct ieee80211_sub_if_data *sdata,
-				    const u8 *ssid, u8 ssid_len,
-				    struct ieee80211_channel *chan)
+int ieee80211_request_ibss_scan(struct ieee80211_sub_if_data *sdata,
+				const u8 *ssid, u8 ssid_len,
+				struct ieee80211_channel *chan)
 {
 	struct ieee80211_local *local = sdata->local;
 	int ret = -EBUSY;
@@ -848,22 +836,36 @@ int ieee80211_request_internal_scan(struct ieee80211_sub_if_data *sdata,
 
 	/* fill internal scan request */
 	if (!chan) {
-		int i, nchan = 0;
+		int i, max_n;
+		int n_ch = 0;
 
 		for (band = 0; band < IEEE80211_NUM_BANDS; band++) {
 			if (!local->hw.wiphy->bands[band])
 				continue;
-			for (i = 0;
-			     i < local->hw.wiphy->bands[band]->n_channels;
-			     i++) {
-				local->int_scan_req->channels[nchan] =
+
+			max_n = local->hw.wiphy->bands[band]->n_channels;
+			for (i = 0; i < max_n; i++) {
+				struct ieee80211_channel *tmp_ch =
 				    &local->hw.wiphy->bands[band]->channels[i];
-				nchan++;
+
+				if (tmp_ch->flags & (IEEE80211_CHAN_NO_IBSS |
+						     IEEE80211_CHAN_DISABLED))
+					continue;
+
+				local->int_scan_req->channels[n_ch] = tmp_ch;
+				n_ch++;
 			}
 		}
 
-		local->int_scan_req->n_channels = nchan;
+		if (WARN_ON_ONCE(n_ch == 0))
+			goto unlock;
+
+		local->int_scan_req->n_channels = n_ch;
 	} else {
+		if (WARN_ON_ONCE(chan->flags & (IEEE80211_CHAN_NO_IBSS |
+						IEEE80211_CHAN_DISABLED)))
+			goto unlock;
+
 		local->int_scan_req->channels[0] = chan;
 		local->int_scan_req->n_channels = 1;
 	}