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2013-06-20net: Add missing dependencies on NETDEVICESBen Hutchings
ETRAX_ETHERNET selects ETHERNET and MII, which depend on NETDEVICES. I don't think anything should select NETDEVICES, so make it a dependency. It also doesn't need to select or depend on ETHERNET, which has nothing to do with the Ethernet library functions. BPCTL selects MII, which depends on NETDEVICES. But everything in the drivers/staging/silicom directory is related to net devices, so make NET_VENDOR_SILICOM depend on NETDEVICES and remove the now-redundant dependencies on NET. Signed-off-by: Ben Hutchings <ben@decadent.org.uk> Signed-off-by: David S. Miller <davem@davemloft.net>
2013-06-20at91_ether: Do not select NET_COREBen Hutchings
This has no dependency on any of the drivers under NET_CORE. Signed-off-by: Ben Hutchings <ben@decadent.org.uk> Acked-by: Nicolas Ferre <nicolas.ferre@atmel.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2013-06-20net: Move MII out from under NET_CORE and hide itBen Hutchings
All drivers that select MII also need to select NET_CORE because MII depends on it. This is a bit ridiculous because NET_CORE is just a menu option that doesn't enable any code by itself. There is also no need for it to be a visible option, since its users all select it. Signed-off-by: Ben Hutchings <ben@decadent.org.uk> Acked-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2013-06-20tcp:typo unset should be unsentWeiping Pan
Signed-off-by: Weiping Pan <wpan@redhat.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2013-06-20bonding: trivial: make alb use bond_slave_has_mac()Veaceslav Falico
Also, cleanup bond_alb_handle_active_change() from 2 identical ifs. Signed-off-by: Veaceslav Falico <vfalico@redhat.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2013-06-20be2net: use pci_vfs_assigned()/pci_num_vf() instead of be_find_vfs()Sathya Perla
be_find_vfs() is no longer needed as the common PCI calls provide the same functionality. Signed-off-by: Sathya Perla <sathya.perla@emulex.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2013-06-20sit: fix an oops when IFLA_IPTUN_PROTO is not setNicolas Dichtel
The use of this attribute has been added in 32b8a8e59c9c (sit: add IPv4 over IPv4 support). It is optional, by default proto is IPPROTO_IPV6. Signed-off-by: Nicolas Dichtel <nicolas.dichtel@6wind.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2013-06-20net: sock: adapt SOCK_MIN_RCVBUF and SOCK_MIN_SNDBUFDaniel Borkmann
The current situation is that SOCK_MIN_RCVBUF is 2048 + sizeof(struct sk_buff)) while SOCK_MIN_SNDBUF is 2048. Since in both cases, skb->truesize is used for sk_{r,w}mem_alloc accounting, we should have both sizes adjusted via defining a TCP_SKB_MIN_TRUESIZE. Further, as Eric Dumazet points out, the minimal skb truesize in transmit path is SKB_TRUESIZE(2048) after commit f07d960df33c5 ("tcp: avoid frag allocation for small frames"), and tcp_sendmsg() tries to limit skb size to half the congestion window, meaning we try to build two skbs at minimum. Thus, having SOCK_MIN_SNDBUF as 2048 can hit a small regression for some applications setting to low SO_SNDBUF / SO_RCVBUF. Note that we define a TCP_SKB_MIN_TRUESIZE, because SKB_TRUESIZE(2048) adds SKB_DATA_ALIGN(sizeof(struct skb_shared_info)), but in case of TCP skbs, the skb_shared_info is part of the 2048 bytes allocation for skb->head. The minor adaption in sk_stream_moderate_sndbuf() is to silence a warning by using a typed max macro, as similarly done in SOCK_MIN_RCVBUF occurences, that would appear otherwise. Suggested-by: Eric Dumazet <eric.dumazet@gmail.com> Signed-off-by: Daniel Borkmann <dborkman@redhat.com> Signed-off-by: Eric Dumazet <edumazet@google.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2013-06-20neigh: disallow un-init_net to change thresh of neighGao feng
thresh and interval are global resources, only init net can change them. Signed-off-by: Gao feng <gaofeng@cn.fujitsu.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2013-06-20neigh: only allow init_net to change the default neigh_parmsGao feng
Though we don't export the /proc/sys/net/ipv[4,6]/neigh/default/ directory to the un-init_net, but we can still use cmd such as "ip ntable change name arp_cache locktime 129" to change the locktime of default neigh_parms. This patch disallows the un-init_net to find out the neigh_table.parms. So the un-init_net will failed to influence the init_net. Signed-off-by: Gao feng <gaofeng@cn.fujitsu.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2013-06-20neigh: no need to call lookup_neigh_parms in neigh_parms_allocGao feng
neigh_table.parms always exist and is initialized,kmemdup can use it to create new neigh_parms, actually lookup_neigh_parms here will return neigh_table.parms too. Signed-off-by: Gao feng <gaofeng@cn.fujitsu.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2013-06-20bnx2x: replace mechanism to check for next available packetDmitry Kravkov
Check next packet availability by validating that HW has finished CQE placement. This saves latency of another dma transaction performed to update SB indexes. Signed-off-by: Dmitry Kravkov <dmitry@broadcom.com> Signed-off-by: Eilon Greenstein <eilong@broadcom.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2013-06-20bnx2x: add support for ndo_ll_pollDmitry Kravkov
Adds ndo_ll_poll method and locking for FPs between LL and the napi. When receiving a packet we use skb_mark_ll to record the napi it came from. Add each napi to the napi_hash right after netif_napi_add(). Signed-off-by: Dmitry Kravkov <dmitry@broadcom.com> Signed-off-by: Eilon Greenstein <eilong@broadcom.com> Reviewed-by: Eric Dumazet <edumazet@google.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2013-06-20net/mlx4_en: Low Latency recv statisticsAmir Vadai
Signed-off-by: Amir Vadai <amirv@mellanox.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2013-06-20net/mlx4_en: Add Low Latency Socket (LLS) supportAmir Vadai
Add basic support for LLS. Signed-off-by: Amir Vadai <amirv@mellanox.com> Reviewed-by: Eric Dumazet <edumazet@google.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2013-06-20openvswitch: gre tunneling support.David S. Miller
Pravin B Shelar says: ==================== Following patch series adds support for gre tunneling. First six patches extend kernel gre and ip_tunnel modules api so that there is more code sharing between gre modules and ovs. Rest of patches adds ovs tunneling infrastructre and gre protocol vport. V2 fixes two patches according to comments from Jesse. ==================== Signed-off-by: David S. Miller <davem@davemloft.net>
2013-06-20openvswitch: Add gre tunnel support.Pravin B Shelar
Add gre vport implementation. Most of gre protocol processing is pushed to gre module. It make use of gre demultiplexer therefore it can co-exist with linux device based gre tunnels. Signed-off-by: Pravin B Shelar <pshelar@nicira.com> Acked-by: Jesse Gross <jesse@nicira.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2013-06-20openvswitch: Optimize flow key match for non tunnel flows.Pravin B Shelar
Following patch adds start offset for sw_flow-key, so that we can skip tunneling information in key for non-tunnel flows. Signed-off-by: Pravin B Shelar <pshelar@nicira.com> Acked-by: Jesse Gross <jesse@nicira.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2013-06-20openvswitch: Expand action buffer size.Pravin B Shelar
MAX_ACTIONS_BUFSIZE limits action list size, set tunnel action needs extra space on action list, for now increase max actions list limit. Signed-off-by: Pravin B Shelar <pshelar@nicira.com> Acked-by: Jesse Gross <jesse@nicira.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2013-06-20openvswitch: Add tunneling interface.Pravin B Shelar
Add ovs tunnel interface for set tunnel action for userspace. Signed-off-by: Pravin B Shelar <pshelar@nicira.com> Acked-by: Jesse Gross <jesse@nicira.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2013-06-20openvswitch: Copy individual actions.Pravin B Shelar
Rather than validating actions and then copying all actiaons in one block, following patch does same operation in single pass. This validate and copy action one by one. This is required for ovs tunneling patch. This patch does not change any functionality. Signed-off-by: Pravin B Shelar <pshelar@nicira.com> Acked-by: Jesse Gross <jesse@nicira.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2013-06-20ip_tunnel: Add dont fragment flag.Pravin B Shelar
This flag will be used by ovs tunneling. Signed-off-by: Pravin B Shelar <pshelar@nicira.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2013-06-20ip_tunnel: push generic protocol handling to ip_tunnel module.Pravin B Shelar
Process skb tunnel header before sending packet to protocol handler. this allows code sharing between gre and ovs gre modules. Signed-off-by: Pravin B Shelar <pshelar@nicira.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2013-06-20ip_tunnels: extend iptunnel_xmit()Pravin B Shelar
Refactor various ip tunnels xmit functions and extend iptunnel_xmit() so that there is more code sharing. Signed-off-by: Pravin B Shelar <pshelar@nicira.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2013-06-20gre: export gre_handle_offloads() function.Pravin B Shelar
This is required for OVS GRE offloading. Signed-off-by: Pravin B Shelar <pshelar@nicira.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2013-06-20gre: export gre_build_header() function.Pravin B Shelar
This is required for ovs gre module. Signed-off-by: Pravin B Shelar <pshelar@nicira.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2013-06-20gre: Allow multiple protocol listener for gre protocol.Pravin B Shelar
Currently there is only one user is allowed to register for gre protocol. Following patch adds de-multiplexer. So that multiple modules can listen on gre protocol e.g. kernel gre devices and ovs. Signed-off-by: Pravin B Shelar <pshelar@nicira.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2013-06-20gre: Simplify gre protocol registration locking.Pravin B Shelar
Use cmpxchg() for atomic protocol registration which saves code and data space. Signed-off-by: Pravin B Shelar <pshelar@nicira.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2013-06-20sh_eth: get R8A7740 Rx descriptor word 0 shift out of #ifdefSergei Shtylyov
The only R8A7740 specific #ifdef hindering ARM multiplatform build is left in sh_eth_rx(): it covers the code shifting Rx buffer descriptor word 0 by 16. Get rid of the #ifdef by adding 'shift_rd0' field to the 'struct sh_eth_cpu_data', making the shift dependent on it, and setting it to 1 for the R8A7740 case... Signed-off-by: Sergei Shtylyov <sergei.shtylyov@cogentembedded.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2013-06-20sh_eth: cleanup 'enum TD_STS_BIT'Sergei Shtylyov
Fix the comment to 'enum TD_STS_BIT', reformat the values, and add a couple of values missing before (though unused by the driver). Signed-off-by: Sergei Shtylyov <sergei.shtylyov@cogentembedded.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2013-06-20sh_eth: remove redundant bits from 'eesipr_value' field initializerSergei Shtylyov
For SH7724 'eesipr_value' field initializer includes DMAC_M_RFRMER & DMAC_M_ECI bits which are already contained in 0x01ff009f -- remove them. Signed-off-by: Sergei Shtylyov <sergei.shtylyov@cogentembedded.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2013-06-20sh_eth: remove 'tx_error_check' field of 'struct sh_eth_cpu_data'Sergei Shtylyov
The 'tx_error_check' field of 'struct sh_eth_cpu_data' is write-only, so remove it along with the DEFAULT_TX_ERROR_CHECK macro. Signed-off-by: Sergei Shtylyov <sergei.shtylyov@cogentembedded.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2013-06-20sh_eth: add NAPI supportSergei Shtylyov
The driver hasn't used NAPI so far; implement its support at last... The patch was tested on Renesas R8A77781 BOCK-W board. Signed-off-by: Sergei Shtylyov <sergei.shtylyov@cogentembedded.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2013-06-20sh_eth: define/use EESR_RX_CHECK macroSergei Shtylyov
sh_eth_interrupt() uses the same Rx interrupt mask twice to check the interrupt status register -- #define EESR_RX_CHECK and use it instead. Signed-off-by: Sergei Shtylyov <sergei.shtylyov@cogentembedded.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2013-06-19Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/netDavid S. Miller
Conflicts: drivers/net/wireless/ath/ath9k/Kconfig drivers/net/xen-netback/netback.c net/batman-adv/bat_iv_ogm.c net/wireless/nl80211.c The ath9k Kconfig conflict was a change of a Kconfig option name right next to the deletion of another option. The xen-netback conflict was overlapping changes involving the handling of the notify list in xen_netbk_rx_action(). Batman conflict resolution provided by Antonio Quartulli, basically keep everything in both conflict hunks. The nl80211 conflict is a little more involved. In 'net' we added a dynamic memory allocation to nl80211_dump_wiphy() to fix a race that Linus reported. Meanwhile in 'net-next' the handlers were converted to use pre and post doit handlers which use a flag to determine whether to hold the RTNL mutex around the operation. However, the dump handlers to not use this logic. Instead they have to explicitly do the locking. There were apparent bugs in the conversion of nl80211_dump_wiphy() in that we were not dropping the RTNL mutex in all the return paths, and it seems we very much should be doing so. So I fixed that whilst handling the overlapping changes. To simplify the initial returns, I take the RTNL mutex after we try to allocate 'tb'. Signed-off-by: David S. Miller <davem@davemloft.net>
2013-06-19Merge branch 'master' of ↵John W. Linville
git://git.kernel.org/pub/scm/linux/kernel/git/linville/wireless into for-davem
2013-06-19Merge branch 'for-john' of ↵John W. Linville
git://git.kernel.org/pub/scm/linux/kernel/git/jberg/mac80211
2013-06-19nl80211: fix attrbuf access race by allocating a separate oneJohannes Berg
Since my commit 3713b4e364 ("nl80211: allow splitting wiphy information in dumps"), nl80211_dump_wiphy() uses the global nl80211_fam.attrbuf for parsing the incoming data. This wouldn't be a problem if it only did so on the first dump iteration which is locked against other commands in generic netlink, but due to space constraints in cb->args (the needed state doesn't fit) I decided to always parse the original message. That's racy though since nl80211_fam.attrbuf could be used by some other parsing in generic netlink concurrently. For now, fix this by allocating a separate parse buffer (it's a bit too big for the stack, currently 1448 bytes on 64-bit). For -next, I'll change the code to parse into the global buffer in the first round only and then allocate a smaller buffer to keep the data in cb->args. Reported-by: Linus Torvalds <torvalds@linux-foundation.org> Acked-by: David S. Miller <davem@davemloft.net> Acked-by: John W. Linville <linville@tuxdriver.com> Signed-off-by: Johannes Berg <johannes.berg@intel.com>
2013-06-19vxlan: fix check for migration of static entrystephen hemminger
The check introduced by: commit 26a41ae604381c5cc0caf1c3261ca6b298b5fe69 Author: stephen hemminger <stephen@networkplumber.org> Date: Mon Jun 17 12:09:58 2013 -0700 vxlan: only migrate dynamic FDB entries was not correct because it is checking flag about type of FDB entry, rather than the state (dynamic versus static). The confusion arises because vxlan is reusing values from bridge, and bridge is reusing values from neighbour table, and easy to get lost in translation. Signed-off-by: Stephen Hemminger <stephen@networkplumber.org> Signed-off-by: David S. Miller <davem@davemloft.net>
2013-06-19bcm63xx_enet: fix return value check in bcm_enet_shared_probe()Wei Yongjun
In case of error, the function devm_ioremap_resource() returns ERR_PTR() and never returns NULL. The NULL test in the return value check should be replaced with IS_ERR(). Introduce by commit 0ae99b5fede6f3a8d252d50bb4aba29544295219 (bcm63xx_enet: split DMA channel register accesses) Signed-off-by: Wei Yongjun <yongjun_wei@trendmicro.com.cn> Signed-off-by: David S. Miller <davem@davemloft.net>
2013-06-19can: usb_8dev: unregister netdev before free()ingMarc Kleine-Budde
The usb_8dev hardware has problems on some xhci USB hosts. The driver fails to read the firmware revision in the probe function. This leads to the following Oops: [ 3356.635912] kernel BUG at net/core/dev.c:5701! The driver tries to free the netdev, which has already been registered, without unregistering it. This patch fixes the problem by unregistering the netdev in the error path. Reported-by: Michael Olbrich <m.olbrich@pengutronix.de> Reviewed-by: Bernd Krumboeck <krumboeck@universalnet.at> Signed-off-by: Marc Kleine-Budde <mkl@pengutronix.de>
2013-06-18ipv6: ndisc: fix ndisc_send_redirect writing to the wrong skbMatthias Schiffer
Since some refactoring in 5f5a011, ndisc_send_redirect called ndisc_fill_redirect_hdr_option on the wrong skb, leading to data corruption or in the worst case a panic when the skb_put failed. Signed-off-by: Matthias Schiffer <mschiffer@universe-factory.net> Reviewed-by: Cong Wang <xiyou.wangcong@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2013-06-18staging/rtl8192u: convert skb->tail into skb_tail_pointer(skb)Isaku Yamahata
The change set of 7a884dc "[SK_BUFF]: Convert skb->tail to sk_buff_data_t" converted skb->tail from pointer into sk_buff_data_t. Thus skb->tail is not always pointer, the area pointed by skb->tail should be accessed via skb_tail_pointer(). Found by inspection. Compile tested only. Cc: Simon Horman <horms@verge.net.au> Cc: Greg Kroah-Hartman <gregkh@linuxfoundation.org> Cc: devel@driverdev.osuosl.org Signed-off-by: Isaku Yamahata <yamahata@valinux.co.jp> Reviewed-by: Simon Horman <horms@verge.net.au> Acked-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org> Signed-off-by: David S. Miller <davem@davemloft.net>
2013-06-18pxa168_eth: convert skb->end into skb_end_pointer(skb)Isaku Yamahata
The change set of 4305b541, "[SK_BUFF]: Convert skb->end to sk_buff_data_t" converted skb->end from pointer type to sk_buff_data_t. The pointed value should be accessed via skb_end_pointer(). Since arm arch doesn't define NET_SKBUFF_DATA_USES_OFFSET, skb->end is effectively pointer. So it doesn't cause a real problem. But this patch is good for consistency. Found by inspection. Compile tested only. Cc: Simon Horman <horms@verge.net.au> Signed-off-by: Isaku Yamahata <yamahata@valinux.co.jp> Reviewed-by: Simon Horman <horms@verge.net.au> Signed-off-by: David S. Miller <davem@davemloft.net>
2013-06-18mv643xx_eth.c: convert skb->end into skb_end_poitner(skb)Isaku Yamahata
The change set of 4305b541 "[SK_BUFF]: Convert skb->end to sk_buff_data_t" converted skb->end from pointer to sk_buff_data_t. The pointed value should be accessed via skb_end_pointer(). Since arm or ppc arch doesn't define NET_SKBUFF_DATA_USES_OFFSET, skb->end is effectively pointer. So it doesn't cause a real problem. But this patch is good for consistency. Found by inspection. Compile test only. Cc: Simon Horman <horms@verge.net.au> Cc: Lennert Buytenhek <buytenh@wantstofly.org> Signed-off-by: Isaku Yamahata <yamahata@valinux.co.jp> Reviewed-by: Simon Horman <horms@verge.net.au> Signed-off-by: David S. Miller <davem@davemloft.net>
2013-06-18net, scsi/csgb4i: convert skb->transport_header into skb_transport_header(skb)Isaku Yamahata
The change set of 1a37e412, "net: Use 16bits for *_headers fields of struct skbuff" converted from sk_buff_data_t into 16bit integer. So skb->tail needs to be converted to skb_tail_pointer(skb). Found by inspection. Compile tested only. Cc: Simon Horman <horms@verge.net.au> Cc: Li RongQing <roy.qing.li@gmail.com> Cc: linux-scsi@vger.kernel.org Signed-off-by: Isaku Yamahata <yamahata@valinux.co.jp> Acked-by: Simon Horman <horms@verge.net.au> Signed-off-by: David S. Miller <davem@davemloft.net>
2013-06-18net, atm/ambassader: convert skb->tail into skb_tail_pointer(skb)Isaku Yamahata
The change set of 27a884dc, "[SK_BUFF]: Convert skb->tail to sk_buff_data_t" converted skb->tail from pointer into sk_buff_data_t. It missed skb->tail in drivers/atm/ambassador.c. This patch converts skb->tail into skb_tail_pointer(skb). Found by inspection. Compile tested only. Cc: Simon Horman <horms@verge.net.au> Cc: Chas Williams <chas@cmf.nrl.navy.mil> Signed-off-by: Isaku Yamahata <yamahata@valinux.co.jp> Reviewed-by: Simon Horman <horms@verge.net.au> Signed-off-by: David S. Miller <davem@davemloft.net>
2013-06-18bridge: fix switched interval for MLD Query typesLinus Lüssing
General Queries (the one with the Multicast Address field set to zero / '::') are supposed to have a Maximum Response Delay of [Query Response Interval], while for Multicast-Address-Specific Queries it is [Last Listener Query Interval] - not the other way round. (see RFC2710, section 7.3+7.8) Signed-off-by: Linus Lüssing <linus.luessing@web.de> Signed-off-by: David S. Miller <davem@davemloft.net>
2013-06-18vlan: restore ethtool ABI to control VLAN hardware accelerationFernando Luis Vazquez Cao
As part of the push to add 802.1ad server provider tagging support to the kernel the VLAN features flags were renamed. Unfortunately the kernel name for the VLAN hardware acceleration features that the kernel shows user space was included in the rename, which broke ethtool (txvlan and rxvlan options do not work). This patch restores the original names, i.e. the original ABI. If we wanted to make clear to users that we are refering to CTAGs we can always change ethtool's short_name and long_name for these features (for example something along the lines of txvlan -> txvlan-ctag, tx-vlan-offload -> tx-vlan-ctag-offload). Cc: Patrick McHardy <kaber@trash.net> Cc: David S. Miller <davem@davemloft.net> Cc: netdev@vger.kernel.org Signed-off-by: Fernando Luis Vazquez Cao <fernando@oss.ntt.co.jp> Reviewed-by: Ben Hutchings <bhutchings@solarflare.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2013-06-18net: sctp: remove SCTP_STATIC macroDaniel Borkmann
SCTP_STATIC is just another define for the static keyword. It's use is inconsistent in the SCTP code anyway and it was introduced in the initial implementation of SCTP in 2.5. We have a regression suite in lksctp-tools, but this is for user space only, so noone makes use of this macro anymore. The kernel test suite for 2.5 is incompatible with the current SCTP code anyway. So simply Remove it, to be more consistent with the rest of the kernel code. Signed-off-by: Daniel Borkmann <dborkman@redhat.com> Acked-by: Vlad Yasevich <vyasevich@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>