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

Pull networking changes from David Miller:

1) Allow to dump, monitor, and change the bridge multicast database
   using netlink.  From Cong Wang.

2) RFC 5961 TCP blind data injection attack mitigation, from Eric
   Dumazet.

3) Networking user namespace support from Eric W. Biederman.

4) tuntap/virtio-net multiqueue support by Jason Wang.

5) Support for checksum offload of encapsulated packets (basically,
   tunneled traffic can still be checksummed by HW).  From Joseph
   Gasparakis.

6) Allow BPF filter access to VLAN tags, from Eric Dumazet and
   Daniel Borkmann.

7) Bridge port parameters over netlink and BPDU blocking support
   from Stephen Hemminger.

8) Improve data access patterns during inet socket demux by rearranging
   socket layout, from Eric Dumazet.

9) TIPC protocol updates and cleanups from Ying Xue, Paul Gortmaker, and
   Jon Maloy.

10) Update TCP socket hash sizing to be more in line with current day
    realities.  The existing heurstics were choosen a decade ago.
    From Eric Dumazet.

11) Fix races, queue bloat, and excessive wakeups in ATM and
    associated drivers, from Krzysztof Mazur and David Woodhouse.

12) Support DOVE (Distributed Overlay Virtual Ethernet) extensions
    in VXLAN driver, from David Stevens.

13) Add "oops_only" mode to netconsole, from Amerigo Wang.

14) Support set and query of VEB/VEPA bridge mode via PF_BRIDGE, also
    allow DCB netlink to work on namespaces other than the initial
    namespace.  From John Fastabend.

15) Support PTP in the Tigon3 driver, from Matt Carlson.

16) tun/vhost zero copy fixes and improvements, plus turn it on
    by default, from Michael S. Tsirkin.

17) Support per-association statistics in SCTP, from Michele
    Baldessari.

And many, many, driver updates, cleanups, and improvements.  Too
numerous to mention individually.

* git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-next: (1722 commits)
  net/mlx4_en: Add support for destination MAC in steering rules
  net/mlx4_en: Use generic etherdevice.h functions.
  net: ethtool: Add destination MAC address to flow steering API
  bridge: add support of adding and deleting mdb entries
  bridge: notify mdb changes via netlink
  ndisc: Unexport ndisc_{build,send}_skb().
  uapi: add missing netconf.h to export list
  pkt_sched: avoid requeues if possible
  solos-pci: fix double-free of TX skb in DMA mode
  bnx2: Fix accidental reversions.
  bna: Driver Version Updated to 3.1.2.1
  bna: Firmware update
  bna: Add RX State
  bna: Rx Page Based Allocation
  bna: TX Intr Coalescing Fix
  bna: Tx and Rx Optimizations
  bna: Code Cleanup and Enhancements
  ath9k: check pdata variable before dereferencing it
  ath5k: RX timestamp is reported at end of frame
  ath9k_htc: RX timestamp is reported at end of frame
  ...

2 files changed, 1 insertions, 194 deletions

diff --git a/kernel/time/Makefile b/kernel/time/Makefile
index e2fd74b8e8c2..ff7d9d2ab504 100644
--- a/kernel/time/Makefile
+++ b/kernel/time/Makefile
@@ -1,4 +1,4 @@
-obj-y += timekeeping.o ntp.o clocksource.o jiffies.o timer_list.o timecompare.o
+obj-y += timekeeping.o ntp.o clocksource.o jiffies.o timer_list.o
 obj-y += timeconv.o posix-clock.o alarmtimer.o
 
 obj-$(CONFIG_GENERIC_CLOCKEVENTS_BUILD)		+= clockevents.o
diff --git a/kernel/time/timecompare.c b/kernel/time/timecompare.c
deleted file mode 100644
index a9ae369925ce..000000000000
--- a/kernel/time/timecompare.c
+++ /dev/null
@@ -1,193 +0,0 @@
-/*
- * Copyright (C) 2009 Intel Corporation.
- * Author: Patrick Ohly <patrick.ohly@intel.com>
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; either version 2 of the License, or
- * (at your option) any later version.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License
- * along with this program; if not, write to the Free Software
- * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
- */
-
-#include <linux/timecompare.h>
-#include <linux/module.h>
-#include <linux/slab.h>
-#include <linux/math64.h>
-#include <linux/kernel.h>
-
-/*
- * fixed point arithmetic scale factor for skew
- *
- * Usually one would measure skew in ppb (parts per billion, 1e9), but
- * using a factor of 2 simplifies the math.
- */
-#define TIMECOMPARE_SKEW_RESOLUTION (((s64)1)<<30)
-
-ktime_t timecompare_transform(struct timecompare *sync,
-			      u64 source_tstamp)
-{
-	u64 nsec;
-
-	nsec = source_tstamp + sync->offset;
-	nsec += (s64)(source_tstamp - sync->last_update) * sync->skew /
-		TIMECOMPARE_SKEW_RESOLUTION;
-
-	return ns_to_ktime(nsec);
-}
-EXPORT_SYMBOL_GPL(timecompare_transform);
-
-int timecompare_offset(struct timecompare *sync,
-		       s64 *offset,
-		       u64 *source_tstamp)
-{
-	u64 start_source = 0, end_source = 0;
-	struct {
-		s64 offset;
-		s64 duration_target;
-	} buffer[10], sample, *samples;
-	int counter = 0, i;
-	int used;
-	int index;
-	int num_samples = sync->num_samples;
-
-	if (num_samples > ARRAY_SIZE(buffer)) {
-		samples = kmalloc(sizeof(*samples) * num_samples, GFP_ATOMIC);
-		if (!samples) {
-			samples = buffer;
-			num_samples = ARRAY_SIZE(buffer);
-		}
-	} else {
-		samples = buffer;
-	}
-
-	/* run until we have enough valid samples, but do not try forever */
-	i = 0;
-	counter = 0;
-	while (1) {
-		u64 ts;
-		ktime_t start, end;
-
-		start = sync->target();
-		ts = timecounter_read(sync->source);
-		end = sync->target();
-
-		if (!i)
-			start_source = ts;
-
-		/* ignore negative durations */
-		sample.duration_target = ktime_to_ns(ktime_sub(end, start));
-		if (sample.duration_target >= 0) {
-			/*
-			 * assume symetric delay to and from source:
-			 * average target time corresponds to measured
-			 * source time
-			 */
-			sample.offset =
-				(ktime_to_ns(end) + ktime_to_ns(start)) / 2 -
-				ts;
-
-			/* simple insertion sort based on duration */
-			index = counter - 1;
-			while (index >= 0) {
-				if (samples[index].duration_target <
-				    sample.duration_target)
-					break;
-				samples[index + 1] = samples[index];
-				index--;
-			}
-			samples[index + 1] = sample;
-			counter++;
-		}
-
-		i++;
-		if (counter >= num_samples || i >= 100000) {
-			end_source = ts;
-			break;
-		}
-	}
-
-	*source_tstamp = (end_source + start_source) / 2;
-
-	/* remove outliers by only using 75% of the samples */
-	used = counter * 3 / 4;
-	if (!used)
-		used = counter;
-	if (used) {
-		/* calculate average */
-		s64 off = 0;
-		for (index = 0; index < used; index++)
-			off += samples[index].offset;
-		*offset = div_s64(off, used);
-	}
-
-	if (samples && samples != buffer)
-		kfree(samples);
-
-	return used;
-}
-EXPORT_SYMBOL_GPL(timecompare_offset);
-
-void __timecompare_update(struct timecompare *sync,
-			  u64 source_tstamp)
-{
-	s64 offset;
-	u64 average_time;
-
-	if (!timecompare_offset(sync, &offset, &average_time))
-		return;
-
-	if (!sync->last_update) {
-		sync->last_update = average_time;
-		sync->offset = offset;
-		sync->skew = 0;
-	} else {
-		s64 delta_nsec = average_time - sync->last_update;
-
-		/* avoid division by negative or small deltas */
-		if (delta_nsec >= 10000) {
-			s64 delta_offset_nsec = offset - sync->offset;
-			s64 skew; /* delta_offset_nsec *
-				     TIMECOMPARE_SKEW_RESOLUTION /
-				     delta_nsec */
-			u64 divisor;
-
-			/* div_s64() is limited to 32 bit divisor */
-			skew = delta_offset_nsec * TIMECOMPARE_SKEW_RESOLUTION;
-			divisor = delta_nsec;
-			while (unlikely(divisor >= ((s64)1) << 32)) {
-				/* divide both by 2; beware, right shift
-				   of negative value has undefined
-				   behavior and can only be used for
-				   the positive divisor */
-				skew = div_s64(skew, 2);
-				divisor >>= 1;
-			}
-			skew = div_s64(skew, divisor);
-
-			/*
-			 * Calculate new overall skew as 4/16 the
-			 * old value and 12/16 the new one. This is
-			 * a rather arbitrary tradeoff between
-			 * only using the latest measurement (0/16 and
-			 * 16/16) and even more weight on past measurements.
-			 */
-#define TIMECOMPARE_NEW_SKEW_PER_16 12
-			sync->skew =
-				div_s64((16 - TIMECOMPARE_NEW_SKEW_PER_16) *
-					sync->skew +
-					TIMECOMPARE_NEW_SKEW_PER_16 * skew,
-					16);
-			sync->last_update = average_time;
-			sync->offset = offset;
-		}
-	}
-}
-EXPORT_SYMBOL_GPL(__timecompare_update);