From: Linus Torvalds <torvalds@linux-foundation.org>
Date: Thu, 11 Dec 2014 22:27:06 +0000 (-0800)
Subject: Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-next
X-Git-Tag: v3.19-rc1~118
X-Git-Url: http://git.cascardo.eti.br/?a=commitdiff_plain;h=70e71ca0af244f48a5dcf56dc435243792e3a495;p=cascardo%2Flinux.git

Merge git://git./linux/kernel/git/davem/net-next

Pull networking updates from David Miller:

 1) New offloading infrastructure and example 'rocker' driver for
    offloading of switching and routing to hardware.

    This work was done by a large group of dedicated individuals, not
    limited to: Scott Feldman, Jiri Pirko, Thomas Graf, John Fastabend,
    Jamal Hadi Salim, Andy Gospodarek, Florian Fainelli, Roopa Prabhu

 2) Start making the networking operate on IOV iterators instead of
    modifying iov objects in-situ during transfers.  Thanks to Al Viro
    and Herbert Xu.

 3) A set of new netlink interfaces for the TIPC stack, from Richard
    Alpe.

 4) Remove unnecessary looping during ipv6 routing lookups, from Martin
    KaFai Lau.

 5) Add PAUSE frame generation support to gianfar driver, from Matei
    Pavaluca.

 6) Allow for larger reordering levels in TCP, which are easily
    achievable in the real world right now, from Eric Dumazet.

 7) Add a variable of napi_schedule that doesn't need to disable cpu
    interrupts, from Eric Dumazet.

 8) Use a doubly linked list to optimize neigh_parms_release(), from
    Nicolas Dichtel.

 9) Various enhancements to the kernel BPF verifier, and allow eBPF
    programs to actually be attached to sockets.  From Alexei
    Starovoitov.

10) Support TSO/LSO in sunvnet driver, from David L Stevens.

11) Allow controlling ECN usage via routing metrics, from Florian
    Westphal.

12) Remote checksum offload, from Tom Herbert.

13) Add split-header receive, BQL, and xmit_more support to amd-xgbe
    driver, from Thomas Lendacky.

14) Add MPLS support to openvswitch, from Simon Horman.

15) Support wildcard tunnel endpoints in ipv6 tunnels, from Steffen
    Klassert.

16) Do gro flushes on a per-device basis using a timer, from Eric
    Dumazet.  This tries to resolve the conflicting goals between the
    desired handling of bulk vs.  RPC-like traffic.

17) Allow userspace to ask for the CPU upon what a packet was
    received/steered, via SO_INCOMING_CPU.  From Eric Dumazet.

18) Limit GSO packets to half the current congestion window, from Eric
    Dumazet.

19) Add a generic helper so that all drivers set their RSS keys in a
    consistent way, from Eric Dumazet.

20) Add xmit_more support to enic driver, from Govindarajulu
    Varadarajan.

21) Add VLAN packet scheduler action, from Jiri Pirko.

22) Support configurable RSS hash functions via ethtool, from Eyal
    Perry.

* git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-next: (1820 commits)
  Fix race condition between vxlan_sock_add and vxlan_sock_release
  net/macb: fix compilation warning for print_hex_dump() called with skb->mac_header
  net/mlx4: Add support for A0 steering
  net/mlx4: Refactor QUERY_PORT
  net/mlx4_core: Add explicit error message when rule doesn't meet configuration
  net/mlx4: Add A0 hybrid steering
  net/mlx4: Add mlx4_bitmap zone allocator
  net/mlx4: Add a check if there are too many reserved QPs
  net/mlx4: Change QP allocation scheme
  net/mlx4_core: Use tasklet for user-space CQ completion events
  net/mlx4_core: Mask out host side virtualization features for guests
  net/mlx4_en: Set csum level for encapsulated packets
  be2net: Export tunnel offloads only when a VxLAN tunnel is created
  gianfar: Fix dma check map error when DMA_API_DEBUG is enabled
  cxgb4/csiostor: Don't use MASTER_MUST for fw_hello call
  net: fec: only enable mdio interrupt before phy device link up
  net: fec: clear all interrupt events to support i.MX6SX
  net: fec: reset fep link status in suspend function
  net: sock: fix access via invalid file descriptor
  net: introduce helper macro for_each_cmsghdr
  ...
---

70e71ca0af244f48a5dcf56dc435243792e3a495
diff --cc MAINTAINERS
index 132958a4e27c,cb3221d2436b..34b4b841da40
--- a/MAINTAINERS
+++ b/MAINTAINERS
@@@ -4752,14 -4721,15 +4760,21 @@@ S:	Maintaine
  F:	net/ieee802154/
  F:	net/mac802154/
  F:	drivers/net/ieee802154/
+ F:	include/linux/nl802154.h
+ F:	include/linux/ieee802154.h
+ F:	include/net/nl802154.h
+ F:	include/net/mac802154.h
+ F:	include/net/af_ieee802154.h
+ F:	include/net/cfg802154.h
+ F:	include/net/ieee802154_netdev.h
  F:	Documentation/networking/ieee802154.txt
  
 +IGORPLUG-USB IR RECEIVER
 +M:	Sean Young <sean@mess.org>
 +L:	linux-media@vger.kernel.org
 +S:	Maintained
 +F:	drivers/media/rc/igorplugusb.c
 +
  IGUANAWORKS USB IR TRANSCEIVER
  M:	Sean Young <sean@mess.org>
  L:	linux-media@vger.kernel.org
diff --cc arch/nios2/include/asm/Kbuild
index bb160be0dc28,000000000000..01c75f36e8b3
mode 100644,000000..100644
--- a/arch/nios2/include/asm/Kbuild
+++ b/arch/nios2/include/asm/Kbuild
@@@ -1,66 -1,0 +1,65 @@@
 +generic-y += atomic.h
 +generic-y += auxvec.h
 +generic-y += barrier.h
 +generic-y += bitops.h
 +generic-y += bitsperlong.h
 +generic-y += bug.h
 +generic-y += bugs.h
 +generic-y += clkdev.h
 +generic-y += cputime.h
 +generic-y += current.h
 +generic-y += device.h
 +generic-y += div64.h
 +generic-y += dma.h
 +generic-y += emergency-restart.h
 +generic-y += errno.h
 +generic-y += exec.h
 +generic-y += fb.h
 +generic-y += fcntl.h
 +generic-y += ftrace.h
 +generic-y += futex.h
 +generic-y += hardirq.h
- generic-y += hash.h
 +generic-y += hw_irq.h
 +generic-y += ioctl.h
 +generic-y += ioctls.h
 +generic-y += ipcbuf.h
 +generic-y += irq_regs.h
 +generic-y += irq_work.h
 +generic-y += kdebug.h
 +generic-y += kmap_types.h
 +generic-y += kvm_para.h
 +generic-y += local.h
 +generic-y += mcs_spinlock.h
 +generic-y += mman.h
 +generic-y += module.h
 +generic-y += msgbuf.h
 +generic-y += param.h
 +generic-y += pci.h
 +generic-y += percpu.h
 +generic-y += poll.h
 +generic-y += posix_types.h
 +generic-y += preempt.h
 +generic-y += resource.h
 +generic-y += scatterlist.h
 +generic-y += sections.h
 +generic-y += segment.h
 +generic-y += sembuf.h
 +generic-y += serial.h
 +generic-y += shmbuf.h
 +generic-y += shmparam.h
 +generic-y += siginfo.h
 +generic-y += signal.h
 +generic-y += socket.h
 +generic-y += sockios.h
 +generic-y += spinlock.h
 +generic-y += stat.h
 +generic-y += statfs.h
 +generic-y += termbits.h
 +generic-y += termios.h
 +generic-y += topology.h
 +generic-y += trace_clock.h
 +generic-y += types.h
 +generic-y += unaligned.h
 +generic-y += user.h
 +generic-y += vga.h
 +generic-y += xor.h
diff --cc drivers/net/macvtap.c
index af90ab5e5768,2c157cced81f..60f7ee5fafbe
--- a/drivers/net/macvtap.c
+++ b/drivers/net/macvtap.c
@@@ -678,19 -663,18 +680,20 @@@ static ssize_t macvtap_get_user(struct 
  			goto err;
  		len -= vnet_hdr_len;
  
- 		err = memcpy_fromiovecend((void *)&vnet_hdr, iv, 0,
- 					   sizeof(vnet_hdr));
- 		if (err < 0)
+ 		err = -EFAULT;
+ 		n = copy_from_iter(&vnet_hdr, sizeof(vnet_hdr), from);
+ 		if (n != sizeof(vnet_hdr))
  			goto err;
+ 		iov_iter_advance(from, vnet_hdr_len - sizeof(vnet_hdr));
  		if ((vnet_hdr.flags & VIRTIO_NET_HDR_F_NEEDS_CSUM) &&
 -		     vnet_hdr.csum_start + vnet_hdr.csum_offset + 2 >
 -							vnet_hdr.hdr_len)
 -			vnet_hdr.hdr_len = vnet_hdr.csum_start +
 -						vnet_hdr.csum_offset + 2;
 +		     macvtap16_to_cpu(q, vnet_hdr.csum_start) +
 +		     macvtap16_to_cpu(q, vnet_hdr.csum_offset) + 2 >
 +			     macvtap16_to_cpu(q, vnet_hdr.hdr_len))
 +			vnet_hdr.hdr_len = cpu_to_macvtap16(q,
 +				 macvtap16_to_cpu(q, vnet_hdr.csum_start) +
 +				 macvtap16_to_cpu(q, vnet_hdr.csum_offset) + 2);
  		err = -EINVAL;
 -		if (vnet_hdr.hdr_len > len)
 +		if (macvtap16_to_cpu(q, vnet_hdr.hdr_len) > len)
  			goto err;
  	}
  
@@@ -698,13 -682,10 +701,11 @@@
  	if (unlikely(len < ETH_HLEN))
  		goto err;
  
- 	err = -EMSGSIZE;
- 	if (unlikely(count > UIO_MAXIOV))
- 		goto err;
- 
  	if (m && m->msg_control && sock_flag(&q->sk, SOCK_ZEROCOPY)) {
+ 		struct iov_iter i;
+ 
 -		copylen = vnet_hdr.hdr_len ? vnet_hdr.hdr_len : GOODCOPY_LEN;
 +		copylen = vnet_hdr.hdr_len ?
 +			macvtap16_to_cpu(q, vnet_hdr.hdr_len) : GOODCOPY_LEN;
  		if (copylen > good_linear)
  			copylen = good_linear;
  		linear = copylen;
@@@ -808,21 -785,21 +805,21 @@@ static ssize_t macvtap_put_user(struct 
  	if (q->flags & IFF_VNET_HDR) {
  		struct virtio_net_hdr vnet_hdr;
  		vnet_hdr_len = q->vnet_hdr_sz;
- 		if ((len -= vnet_hdr_len) < 0)
+ 		if (iov_iter_count(iter) < vnet_hdr_len)
  			return -EINVAL;
  
 -		macvtap_skb_to_vnet_hdr(skb, &vnet_hdr);
 +		macvtap_skb_to_vnet_hdr(q, skb, &vnet_hdr);
  
- 		if (memcpy_toiovecend(iv, (void *)&vnet_hdr, 0, sizeof(vnet_hdr)))
+ 		if (copy_to_iter(&vnet_hdr, sizeof(vnet_hdr), iter) !=
+ 		    sizeof(vnet_hdr))
  			return -EFAULT;
+ 
+ 		iov_iter_advance(iter, vnet_hdr_len - sizeof(vnet_hdr));
  	}
- 	total = copied = vnet_hdr_len;
+ 	total = vnet_hdr_len;
  	total += skb->len;
  
- 	if (!vlan_tx_tag_present(skb))
- 		len = min_t(int, skb->len, len);
- 	else {
- 		int copy;
+ 	if (vlan_tx_tag_present(skb)) {
  		struct {
  			__be16 h_vlan_proto;
  			__be16 h_vlan_TCI;
diff --cc drivers/net/tun.c
index 798ce70e3d61,f3e992ed87ac..a5cbf67517f0
--- a/drivers/net/tun.c
+++ b/drivers/net/tun.c
@@@ -1043,18 -1025,19 +1044,19 @@@ static ssize_t tun_get_user(struct tun_
  	bool zerocopy = false;
  	int err;
  	u32 rxhash;
+ 	ssize_t n;
  
 -	if (!(tun->flags & TUN_NO_PI)) {
 +	if (!(tun->flags & IFF_NO_PI)) {
  		if (len < sizeof(pi))
  			return -EINVAL;
  		len -= sizeof(pi);
  
- 		if (memcpy_fromiovecend((void *)&pi, iv, 0, sizeof(pi)))
+ 		n = copy_from_iter(&pi, sizeof(pi), from);
+ 		if (n != sizeof(pi))
  			return -EFAULT;
- 		offset += sizeof(pi);
  	}
  
 -	if (tun->flags & TUN_VNET_HDR) {
 +	if (tun->flags & IFF_VNET_HDR) {
  		if (len < tun->vnet_hdr_sz)
  			return -EINVAL;
  		len -= tun->vnet_hdr_sz;
@@@ -1063,18 -1047,18 +1066,18 @@@
  			return -EFAULT;
  
  		if ((gso.flags & VIRTIO_NET_HDR_F_NEEDS_CSUM) &&
 -		    gso.csum_start + gso.csum_offset + 2 > gso.hdr_len)
 -			gso.hdr_len = gso.csum_start + gso.csum_offset + 2;
 +		    tun16_to_cpu(tun, gso.csum_start) + tun16_to_cpu(tun, gso.csum_offset) + 2 > tun16_to_cpu(tun, gso.hdr_len))
 +			gso.hdr_len = cpu_to_tun16(tun, tun16_to_cpu(tun, gso.csum_start) + tun16_to_cpu(tun, gso.csum_offset) + 2);
  
 -		if (gso.hdr_len > len)
 +		if (tun16_to_cpu(tun, gso.hdr_len) > len)
  			return -EINVAL;
- 		offset += tun->vnet_hdr_sz;
+ 		iov_iter_advance(from, tun->vnet_hdr_sz - sizeof(gso));
  	}
  
 -	if ((tun->flags & TUN_TYPE_MASK) == TUN_TAP_DEV) {
 +	if ((tun->flags & TUN_TYPE_MASK) == IFF_TAP) {
  		align += NET_IP_ALIGN;
  		if (unlikely(len < ETH_HLEN ||
 -			     (gso.hdr_len && gso.hdr_len < ETH_HLEN)))
 +			     (gso.hdr_len && tun16_to_cpu(tun, gso.hdr_len) < ETH_HLEN)))
  			return -EINVAL;
  	}
  
@@@ -1260,14 -1243,17 +1262,17 @@@ static ssize_t tun_put_user(struct tun_
  	if (vlan_tx_tag_present(skb))
  		vlan_hlen = VLAN_HLEN;
  
 -	if (tun->flags & TUN_VNET_HDR)
 +	if (tun->flags & IFF_VNET_HDR)
  		vnet_hdr_sz = tun->vnet_hdr_sz;
  
+ 	total = skb->len + vlan_hlen + vnet_hdr_sz;
+ 
 -	if (!(tun->flags & TUN_NO_PI)) {
 +	if (!(tun->flags & IFF_NO_PI)) {
- 		if ((len -= sizeof(pi)) < 0)
+ 		if (iov_iter_count(iter) < sizeof(pi))
  			return -EINVAL;
  
- 		if (len < skb->len + vlan_hlen + vnet_hdr_sz) {
+ 		total += sizeof(pi);
+ 		if (iov_iter_count(iter) < total) {
  			/* Packet will be striped */
  			pi.flags |= TUN_PKT_STRIP;
  		}
diff --cc include/uapi/linux/Kbuild
index c54fcb5993c3,5b6a36cb77fb..d8e1716707ba
--- a/include/uapi/linux/Kbuild
+++ b/include/uapi/linux/Kbuild
@@@ -429,7 -429,6 +430,8 @@@ header-y += virtio_net.
  header-y += virtio_pci.h
  header-y += virtio_ring.h
  header-y += virtio_rng.h
 +header-y += virtio_scsi.h
++header-y += virtio_types.h
  header-y += vm_sockets.h
  header-y += vt.h
  header-y += wait.h
diff --cc net/netfilter/nf_log.c
index 6e3b9117db1f,49a64174f3f1..43c926cae9c0
--- a/net/netfilter/nf_log.c
+++ b/net/netfilter/nf_log.c
@@@ -294,39 -303,35 +303,37 @@@ static int seq_show(struct seq_file *s
  {
  	loff_t *pos = v;
  	const struct nf_logger *logger;
 -	int i, ret;
 +	int i;
  	struct net *net = seq_file_net(s);
  
- 	logger = rcu_dereference_protected(net->nf.nf_loggers[*pos],
- 					   lockdep_is_held(&nf_log_mutex));
+ 	logger = nft_log_dereference(net->nf.nf_loggers[*pos]);
  
  	if (!logger)
 -		ret = seq_printf(s, "%2lld NONE (", *pos);
 +		seq_printf(s, "%2lld NONE (", *pos);
  	else
 -		ret = seq_printf(s, "%2lld %s (", *pos, logger->name);
 +		seq_printf(s, "%2lld %s (", *pos, logger->name);
  
 -	if (ret < 0)
 -		return ret;
 +	if (seq_has_overflowed(s))
 +		return -ENOSPC;
  
  	for (i = 0; i < NF_LOG_TYPE_MAX; i++) {
  		if (loggers[*pos][i] == NULL)
  			continue;
  
- 		logger = rcu_dereference_protected(loggers[*pos][i],
- 					   lockdep_is_held(&nf_log_mutex));
+ 		logger = nft_log_dereference(loggers[*pos][i]);
 -		ret = seq_printf(s, "%s", logger->name);
 -		if (ret < 0)
 -			return ret;
 -		if (i == 0 && loggers[*pos][i + 1] != NULL) {
 -			ret = seq_printf(s, ",");
 -			if (ret < 0)
 -				return ret;
 -		}
 +		seq_printf(s, "%s", logger->name);
 +		if (i == 0 && loggers[*pos][i + 1] != NULL)
 +			seq_printf(s, ",");
 +
 +		if (seq_has_overflowed(s))
 +			return -ENOSPC;
  	}
  
 -	return seq_printf(s, ")\n");
 +	seq_printf(s, ")\n");
 +
 +	if (seq_has_overflowed(s))
 +		return -ENOSPC;
 +	return 0;
  }
  
  static const struct seq_operations nflog_seq_ops = {