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2012-12-07net: phy: smsc: force all capable mode if the phy is started in powerdown modetrem
A SMSC PHY in power down mode can't be used. If a SMSC PHY is in this mode in the config_init stage, the mode "all capable" is set. So the PHY could then be used. Signed-off-by: Philippe Reynes <tremyfr@yahoo.fr> Signed-off-by: David S. Miller <davem@davemloft.net>
2012-12-05bridge: implement multicast fast leaveDavid S. Miller
V3: make it a flag V2: make the toggle per-port Fast leave allows bridge to immediately stops the multicast traffic on the port receives IGMP Leave when IGMP snooping is enabled, no timeouts are observed. Cc: Herbert Xu <herbert@gondor.apana.org.au> Cc: Stephen Hemminger <shemminger@vyatta.com> Cc: "David S. Miller" <davem@davemloft.net> Signed-off-by: Cong Wang <amwang@redhat.com>
2012-12-04ipmr/ip6mr: report origin of mfc entry into rtnl msgNicolas Dichtel
A mfc entry can be static or not (added via the mroute_sk socket). The patch reports MFC_STATIC flag into rtm_protocol by setting rtm_protocol to RTPROT_STATIC or RTPROT_MROUTED. Signed-off-by: Nicolas Dichtel <nicolas.dichtel@6wind.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2012-12-04ipmr/ip6mr: advertise mfc stats via rtnetlinkNicolas Dichtel
These statistics can be checked only via /proc/net/ip_mr_cache or SIOCGETSGCNT[_IN6] and thus only for the table RT_TABLE_DEFAULT. Advertising them via rtnetlink allows to get statistics for all cache entries, whatever the table is. Signed-off-by: Nicolas Dichtel <nicolas.dichtel@6wind.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2012-12-04netconf: advertise mc_forwarding statusNicolas Dichtel
This patch advertise the MC_FORWARDING status for IPv4 and IPv6. This field is readonly, only multicast engine in the kernel updates it. Signed-off-by: Nicolas Dichtel <nicolas.dichtel@6wind.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2012-12-04Merge branch 'master' of git://1984.lsi.us.es/nf-nextDavid S. Miller
Pablo Neira Ayuso says: ==================== * Remove limitation in the maximum number of supported sets in ipset. Now ipset automagically increments the number of slots in the array of sets by 64 new spare slots, from Jozsef Kadlecsik. * Partially remove the generic queue infrastructure now that ip_queue is gone. Its only client is nfnetlink_queue now, from Florian Westphal. * Add missing attribute policy checkings in ctnetlink, from Florian Westphal. * Automagically kill conntrack entries that use the wrong output interface for the masquerading case in case of routing changes, from Jozsef Kadlecsik. * Two patches two improve ct object traceability. Now ct objects are always placed in any of the existing lists. This allows us to dump the content of unconfirmed and dying conntracks via ctnetlink as a way to provide more instrumentation in case you suspect leaks, from myself. ==================== Signed-off-by: David S. Miller <davem@davemloft.net>
2012-12-03tun: only queue packets on deviceMichael S. Tsirkin
Historically tun supported two modes of operation: - in default mode, a small number of packets would get queued at the device, the rest would be queued in qdisc - in one queue mode, all packets would get queued at the device This might have made sense up to a point where we made the queue depth for both modes the same and set it to a huge value (500) so unless the consumer is stuck the chance of losing packets is small. Thus in practice both modes behave the same, but the default mode has some problems: - if packets are never consumed, fragments are never orphaned which cases a DOS for sender using zero copy transmit - overrun errors are hard to diagnose: fifo error is incremented only once so you can not distinguish between userspace that is stuck and a transient failure, tcpdump on the device does not show any traffic Userspace solves this simply by enabling IFF_ONE_QUEUE but there seems to be little point in not doing the right thing for everyone, by default. Signed-off-by: Michael S. Tsirkin <mst@redhat.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2012-12-03sctp: Add support to per-association statistics via a new ↵Michele Baldessari
SCTP_GET_ASSOC_STATS call The current SCTP stack is lacking a mechanism to have per association statistics. This is an implementation modeled after OpenSolaris' SCTP_GET_ASSOC_STATS. Userspace part will follow on lksctp if/when there is a general ACK on this. V4: - Move ipackets++ before q->immediate.func() for consistency reasons - Move sctp_max_rto() at the end of sctp_transport_update_rto() to avoid returning bogus RTO values - return asoc->rto_min when max_obs_rto value has not changed V3: - Increase ictrlchunks in sctp_assoc_bh_rcv() as well - Move ipackets++ to sctp_inq_push() - return 0 when no rto updates took place since the last call V2: - Implement partial retrieval of stat struct to cope for future expansion - Kill the rtxpackets counter as it cannot be precise anyway - Rename outseqtsns to outofseqtsns to make it clearer that these are out of sequence unexpected TSNs - Move asoc->ipackets++ under a lock to avoid potential miscounts - Fold asoc->opackets++ into the already existing asoc check - Kill unneeded (q->asoc) test when increasing rtxchunks - Do not count octrlchunks if sending failed (SCTP_XMIT_OK != 0) - Don't count SHUTDOWNs as SACKs - Move SCTP_GET_ASSOC_STATS to the private space API - Adjust the len check in sctp_getsockopt_assoc_stats() to allow for future struct growth - Move association statistics in their own struct - Update idupchunks when we send a SACK with dup TSNs - return min_rto in max_rto when RTO has not changed. Also return the transport when max_rto last changed. Signed-off: Michele Baldessari <michele@acksyn.org> Acked-by: Vlad Yasevich <vyasevich@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2012-12-03netfilter: nf_nat: Handle routing changes in MASQUERADE targetJozsef Kadlecsik
When the route changes (backup default route, VPNs) which affect a masqueraded target, the packets were sent out with the outdated source address. The patch addresses the issue by comparing the outgoing interface directly with the masqueraded interface in the nat table. Events are inefficient in this case, because it'd require adding route events to the network core and then scanning the whole conntrack table and re-checking the route for all entry. Signed-off-by: Jozsef Kadlecsik <kadlec@blackhole.kfki.hu> Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
2012-12-03netfilter: kill support for per-af queue backendsFlorian Westphal
We used to have several queueing backends, but nowadays only nfnetlink_queue remains. In light of this there doesn't seem to be a good reason to support per-af registering -- just hook up nfnetlink_queue on module load and remove it on unload. This means that the userspace BIND/UNBIND_PF commands are now obsolete; the kernel will ignore them. Signed-off-by: Florian Westphal <fw@strlen.de> Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
2012-12-03netfilter: ctnetlink: dump entries from the dying and unconfirmed listsPablo Neira Ayuso
This patch adds a new operation to dump the content of the dying and unconfirmed lists. Under some situations, the global conntrack counter can be inconsistent with the number of entries that we can dump from the conntrack table. The way to resolve this is to allow dumping the content of the unconfirmed and dying lists, so far it was not possible to look at its content. This provides some extra instrumentation to resolve problematic situations in which anyone suspects memory leaks. Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
2012-12-03netfilter: nf_conntrack: improve nf_conn object traceabilityPablo Neira Ayuso
This patch modifies the conntrack subsystem so that all existing allocated conntrack objects can be found in any of the following places: * the hash table, this is the typical place for alive conntrack objects. * the unconfirmed list, this is the place for newly created conntrack objects that are still traversing the stack. * the dying list, this is where you can find conntrack objects that are dying or that should die anytime soon (eg. once the destroy event is delivered to the conntrackd daemon). Thus, we make sure that we follow the track for all existing conntrack objects. This patch, together with some extension of the ctnetlink interface to dump the content of the dying and unconfirmed lists, will help in case to debug suspected nf_conn object leaks. Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
2012-12-03net: fix sparse endianness warnings on sock_commonEric Dumazet
# make C=2 CF=-D__CHECK_ENDIAN__ net/ipv4/inet_hashtables.o ... net/ipv4/inet_hashtables.c:242:7: warning: restricted __portpair degrades to integer net/ipv4/inet_hashtables.c:242:7: warning: restricted __addrpair degrades to integer ... Move __portpair/__addrpair from include/net/inet_hashtables.h to include/net/sock.h where we need them in struct sock_common Reported-by: Fengguang Wu <fengguang.wu@intel.com> Signed-off-by: Eric Dumazet <edumazet@google.com> Cc: Ling Ma <ling.ma.program@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2012-12-02Merge git://git.infradead.org/users/dwmw2/atmDavid S. Miller
David Woodhouse says: ==================== This is the result of pulling on the thread started by Krzysztof Mazur's original patch 'pppoatm: don't send frames to destroyed vcc'. Various problems in the pppoatm and br2684 code are solved, some of which were easily triggered and would panic the kernel. ==================== Signed-off-by: David S. Miller <davem@davemloft.net>
2012-12-02atm: add release_cb() callback to vccDavid Woodhouse
The immediate use case for this is that it will allow us to ensure that a pppoatm queue is woken after it has to drop a packet due to the sock being locked. Note that 'release_cb' is called when the socket is *unlocked*. This is not to be confused with vcc_release() — which probably ought to be called vcc_close(). Signed-off-by: David Woodhouse <David.Woodhouse@intel.com> Acked-by: Krzysztof Mazur <krzysiek@podlesie.net>
2012-12-01ipv6: unify logic evaluating inet6_dev's accept_ra propertyShmulik Ladkani
As of 026359b [ipv6: Send ICMPv6 RSes only when RAs are accepted], the logic determining whether to send Router Solicitations is identical to the logic determining whether kernel accepts Router Advertisements. However the condition itself is repeated in several code locations. Unify it by introducing 'ipv6_accept_ra()' accessor. Also, simplify the condition expression, making it more readable. No semantic change. Signed-off-by: Shmulik Ladkani <shmulik.ladkani@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2012-11-30net: move inet_dport/inet_num in sock_commonEric Dumazet
commit 68835aba4d9b (net: optimize INET input path further) moved some fields used for tcp/udp sockets lookup in the first cache line of struct sock_common. This patch moves inet_dport/inet_num as well, filling a 32bit hole on 64 bit arches and reducing number of cache line misses in lookups. Also change INET_MATCH()/INET_TW_MATCH() to perform the ports match before addresses match, as this check is more discriminant. Remove the hash check from MATCH() macros because we dont need to re validate the hash value after taking a refcount on socket, and use likely/unlikely compiler hints, as the sk_hash/hash check makes the following conditional tests 100% predicted by cpu. Introduce skc_addrpair/skc_portpair pair values to better document the alignment requirements of the port/addr pairs used in the various MATCH() macros, and remove some casts. The namespace check can also be done at last. This slightly improves TCP/UDP lookup times. IP/TCP early demux needs inet->rx_dst_ifindex and TCP needs inet->min_ttl, lets group them together in same cache line. With help from Ben Hutchings & Joe Perches. Idea of this patch came after Ling Ma proposal to move skc_hash to the beginning of struct sock_common, and should allow him to submit a final version of his patch. My tests show an improvement doing so. Signed-off-by: Eric Dumazet <edumazet@google.com> Cc: Ben Hutchings <bhutchings@solarflare.com> Cc: Joe Perches <joe@perches.com> Cc: Ling Ma <ling.ma.program@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2012-11-30rtnelink: remove unused parameter from rtnl_create_link().Rami Rosen
This patch removes an unused parameter (src_net) from rtnl_create_link() method and from the method single invocation, in veth. This parameter was used in the past when calling ops->get_tx_queues(src_net, tb) in rtnl_create_link(). The get_tx_queues() member of rtnl_link_ops was replaced by two methods, get_num_tx_queues() and get_num_rx_queues(), which do not get any parameter. This was done in commit d40156aa5ecbd51fed932ed4813df82b56e5ff4d by Jiri Pirko ("rtnl: allow to specify different num for rx and tx queue count"). Signed-off-by: Rami Rosen <ramirose@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2012-11-30Merge branch 'master' of ↵David S. Miller
git://git.kernel.org/pub/scm/linux/kernel/git/jesse/openvswitch Conflicts: net/ipv6/exthdrs_core.c Jesse Gross says: ==================== This series of improvements for 3.8/net-next contains four components: * Support for modifying IPv6 headers * Support for matching and setting skb->mark for better integration with things like iptables * Ability to recognize the EtherType for RARP packets * Two small performance enhancements The movement of ipv6_find_hdr() into exthdrs_core.c causes two small merge conflicts. I left it as is but can do the merge if you want. The conflicts are: * ipv6_find_hdr() and ipv6_find_tlv() were both moved to the bottom of exthdrs_core.c. Both should stay. * A new use of ipv6_find_hdr() was added to net/netfilter/ipvs/ip_vs_core.c after this patch. The IPVS user has two instances of the old constant name IP6T_FH_F_FRAG which has been renamed to IP6_FH_F_FRAG. ==================== Signed-off-by: David S. Miller <davem@davemloft.net>
2012-11-29core: make GRO methods static.Rami Rosen
This patch changes three methods to be static and removes their EXPORT_SYMBOLs in core/dev.c and their external declaration in netdevice.h. The methods, dev_gro_receive(), napi_frags_finish() and napi_skb_finish(), which are in the GRO rx path, are not used outside core/dev.c. Signed-off-by: Rami Rosen <ramirose@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2012-11-29Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/netDavid S. Miller
Signed-off-by: David S. Miller <davem@davemloft.net>
2012-11-28Merge branch 'master' of ↵John W. Linville
git://git.kernel.org/pub/scm/linux/kernel/git/linville/wireless-next into for-davem Conflicts: drivers/net/wireless/iwlwifi/pcie/tx.c
2012-11-28percpu-rwsem: use synchronize_sched_expeditedMikulas Patocka
Use synchronize_sched_expedited() instead of synchronize_sched() to improve mount speed. This patch improves mount time from 0.500s to 0.013s for Jeff's test-case. Signed-off-by: Mikulas Patocka <mpatocka@redhat.com> Reported-and-tested-by: Jeff Chua <jeff.chua.linux@gmail.com> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2012-11-28atm: add owner of push() callback to atmvccKrzysztof Mazur
The atm is using atmvcc->push(vcc, NULL) callback to notify protocol that vcc will be closed and protocol must detach from it. This callback is usually used by protocol to decrement module usage count by module_put(), but it leaves small window then module is still used after module_put(). Now the owner of push() callback is kept in atmvcc and module_put(atmvcc->owner) is called after the protocol is detached from vcc. Signed-off-by: Krzysztof Mazur <krzysiek@podlesie.net> Signed-off-by: David Woodhouse <David.Woodhouse@intel.com> Acked-by: Chas Williams <chas@cmf.nrl.navy.mil>
2012-11-27Merge branch 'v4l_for_linus' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/mchehab/linux-media Pull media fixes from Mauro Carvalho Chehab: "For some media fixes: - dvb_usb_v2: some fixes at the core - Some fixes on some embedded drivers: soc_camera, adv7604, omap3isp, exynos/s5p - Several Exynos4/5 camera fixes - a fix at stv0900 driver - a few USB ID additions to detect more variants of rtl28xxu-based sticks" * 'v4l_for_linus' of git://git.kernel.org/pub/scm/linux/kernel/git/mchehab/linux-media: (25 commits) [media] rtl28xxu: 0ccd:00d7 TerraTec Cinergy T Stick+ [media] rtl28xxu: 1d19:1102 Dexatek DK mini DVB-T Dongle [media] mt9v022: fix the V4L2_CID_EXPOSURE control [media] mx2_camera: fix missing unlock on error in mx2_start_streaming() [media] media: omap1_camera: fix const cropping related warnings [media] media: mx1_camera: use the default .set_crop() implementation [media] media: mx2_camera: fix const cropping related warnings [media] media: mx3_camera: fix const cropping related warnings [media] media: pxa_camera: fix const cropping related warnings [media] media: sh_mobile_ceu_camera: fix const cropping related warnings [media] media: sh_vou: fix const cropping related warnings [media] adv7604: restart STDI once if format is not found [media] adv7604: use presets where possible [media] adv7604: Replace prim_mode by mode [media] adv7604: cleanup references [media] dvb_usb_v2: switch interruptible mutex to normal [media] dvb_usb_v2: fix pid_filter callback error logging [media] exynos-gsc: change driver compatible string [media] omap3isp: Fix warning caused by bad subdev events operations prototypes [media] omap3isp: video: Fix warning caused by bad vidioc_s_crop prototype ...
2012-11-27Revert "mm: remove __GFP_NO_KSWAPD"Mel Gorman
With "mm: vmscan: scale number of pages reclaimed by reclaim/compaction based on failures" reverted, Zdenek Kabelac reported the following Hmm, so it's just took longer to hit the problem and observe kswapd0 spinning on my CPU again - it's not as endless like before - but still it easily eats minutes - it helps to turn off Firefox or TB (memory hungry apps) so kswapd0 stops soon - and restart those apps again. (And I still have like >1GB of cached memory) kswapd0 R running task 0 30 2 0x00000000 Call Trace: preempt_schedule+0x42/0x60 _raw_spin_unlock+0x55/0x60 put_super+0x31/0x40 drop_super+0x22/0x30 prune_super+0x149/0x1b0 shrink_slab+0xba/0x510 The sysrq+m indicates the system has no swap so it'll never reclaim anonymous pages as part of reclaim/compaction. That is one part of the problem but not the root cause as file-backed pages could also be reclaimed. The likely underlying problem is that kswapd is woken up or kept awake for each THP allocation request in the page allocator slow path. If compaction fails for the requesting process then compaction will be deferred for a time and direct reclaim is avoided. However, if there are a storm of THP requests that are simply rejected, it will still be the the case that kswapd is awake for a prolonged period of time as pgdat->kswapd_max_order is updated each time. This is noticed by the main kswapd() loop and it will not call kswapd_try_to_sleep(). Instead it will loopp, shrinking a small number of pages and calling shrink_slab() on each iteration. The temptation is to supply a patch that checks if kswapd was woken for THP and if so ignore pgdat->kswapd_max_order but it'll be a hack and not backed up by proper testing. As 3.7 is very close to release and this is not a bug we should release with, a safer path is to revert "mm: remove __GFP_NO_KSWAPD" for now and revisit it with the view to ironing out the balance_pgdat() logic in general. Signed-off-by: Mel Gorman <mgorman@suse.de> Cc: Zdenek Kabelac <zkabelac@redhat.com> Cc: Seth Jennings <sjenning@linux.vnet.ibm.com> Cc: Valdis Kletnieks <Valdis.Kletnieks@vt.edu> Cc: Jiri Slaby <jirislaby@gmail.com> Cc: Rik van Riel <riel@redhat.com> Cc: Robert Jennings <rcj@linux.vnet.ibm.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2012-11-27include/linux/bug.h: fix sparse warning related to BUILD_BUG_ON_INVALIDTushar Behera
Commit baf05aa9271b ("bug: introduce BUILD_BUG_ON_INVALID() macro") introduces this macro only when _CHECKER_ is not defined. Define a silent macro in the else condition to fix following sparse warning: mm/filemap.c:395:9: error: undefined identifier 'BUILD_BUG_ON_INVALID' mm/filemap.c:396:9: error: undefined identifier 'BUILD_BUG_ON_INVALID' mm/filemap.c:397:9: error: undefined identifier 'BUILD_BUG_ON_INVALID' include/linux/mm.h:419:9: error: undefined identifier 'BUILD_BUG_ON_INVALID' include/linux/mm.h:419:9: error: not a function <noident> Signed-off-by: Tushar Behera <tushar.behera@linaro.org> Acked-by: Konstantin Khlebnikov <khlebnikov@openvz.org> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2012-11-26sockopt: Change getsockopt() of SO_BINDTODEVICE to return an interface nameBrian Haley
Instead of having the getsockopt() of SO_BINDTODEVICE return an index, which will then require another call like if_indextoname() to get the actual interface name, have it return the name directly. This also matches the existing man page description on socket(7) which mentions the argument being an interface name. If the value has not been set, zero is returned and optlen will be set to zero to indicate there is no interface name present. Added a seqlock to protect this code path, and dev_ifname(), from someone changing the device name via dev_change_name(). v2: Added seqlock protection while copying device name. v3: Fixed word wrap in patch. Signed-off-by: Brian Haley <brian.haley@hp.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2012-11-26stmmac: add Rx watchdog support to mitigate the DMA irqsGiuseppe CAVALLARO
GMAC devices newer than databook 3.40 has an embedded timer that can be used for mitigating the number of interrupts. So this patch adds this optimizations. At any rate, the Rx watchdog can be disable (on bugged HW) by passing from the platform the riwt_off field. In this implementation the rx timer stored in the Reg9 is fixed to the max value. This will be tuned by using ethtool. V2: added a platform parameter to force to disable the rx-watchdog for example on new core where it is bugged. V3: do not disable NAPI when Rx watchdog is used. V4: a new extra statistic field has been added to show the early receive status in the interrupt handler. This patch also adds an extra check to avoid to call napi_schedule when the DMA_INTR_ENA_RIE bit is disabled in the Interrupt Mask register. Signed-off-by: Giuseppe Cavallaro <peppe.cavallaro@st.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2012-11-26bcma: add more package IDsHauke Mehrtens
Signed-off-by: Hauke Mehrtens <hauke@hauke-m.de> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2012-11-26Merge branch 'for-john' of ↵John W. Linville
git://git.kernel.org/pub/scm/linux/kernel/git/jberg/mac80211-next
2012-11-26openvswitch: add skb mark matching and set actionAnsis Atteka
This patch adds support for skb mark matching and set action. Signed-off-by: Ansis Atteka <aatteka@nicira.com> Signed-off-by: Jesse Gross <jesse@nicira.com>
2012-11-26wireless: add definitions for VHT MCS supportJohannes Berg
Add definitions for the VHT MCS support values that are used to indicate, for each number of streams (1 through 8) which MCSes are supported. Signed-off-by: Johannes Berg <johannes.berg@intel.com>
2012-11-26mac80211: support VHT rates in TX infoJohannes Berg
To achieve this, limit the number of retries to 31 (instead of 255) and use the three bits that are then free for VHT flags. Signed-off-by: Johannes Berg <johannes.berg@intel.com>
2012-11-26mac80211: support drivers reporting VHT RXJohannes Berg
Add support to mac80211 for having drivers report received VHT MCS information. Signed-off-by: Johannes Berg <johannes.berg@intel.com>
2012-11-26nl80211/cfg80211: add VHT MCS supportJohannes Berg
Add support for reporting and calculating VHT MCSes. Note that I'm not completely sure that the bitrate calculations are correct, nor that they can't be simplified. Signed-off-by: Johannes Berg <johannes.berg@intel.com>
2012-11-26mac80211: convert to channel definition structJohannes Berg
Convert mac80211 (and where necessary, some drivers a little bit) to the new channel definition struct. This will allow extending mac80211 for VHT, which is currently restricted to channel contexts since there are no drivers using that which makes it easier. As I also don't care about VHT for drivers not using the channel context API, I won't convert the previous API to VHT support. Signed-off-by: Johannes Berg <johannes.berg@intel.com>
2012-11-26nl80211/cfg80211: support VHT channel configurationJohannes Berg
Change nl80211 to support specifying a VHT (or HT) using the control channel frequency (as before) and new attributes for the channel width and first and second center frequency. The old channel type is of course still supported for HT. Also change the cfg80211 channel definition struct to support these by adding the relevant fields to it (and removing the _type field.) This also adds new helper functions: - cfg80211_chandef_create to create a channel def struct given the control channel and channel type, - cfg80211_chandef_identical to check if two channel definitions are identical - cfg80211_chandef_compatible to check if the given channel definitions are compatible, and return the wider of the two This isn't entirely complete, but that doesn't matter until we have a driver using it. In particular, it's missing - regulatory checks on the usable bandwidth (if that even makes sense) - regulatory TX power (database can't deal with it) - a proper channel compatibility calculation for the new channel types Signed-off-by: Johannes Berg <johannes.berg@intel.com>
2012-11-26cfg80211: pass a channel definition structJohannes Berg
Instead of passing a channel pointer and channel type to all functions and driver methods, pass a new channel definition struct. Right now, this struct contains just the control channel and channel type, but for VHT this will change. Also, add a small inline cfg80211_get_chandef_type() so that drivers don't need to use the _type field of the new structure all the time, which will change. Signed-off-by: Johannes Berg <johannes.berg@intel.com>
2012-11-26nl80211: add documentation for channel typeJohannes Berg
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
2012-11-26cfg80211: remove remain-on-channel channel typeJohannes Berg
As mwifiex (and mac80211 in the software case) are the only drivers actually implementing remain-on-channel with channel type, userspace can't be relying on it. This is the case, as it's used only for P2P operations right now. Rather than adding a flag to tell userspace whether or not it can actually rely on it, simplify all the code by removing the ability to use different channel types. Leave only the validation of the attribute, so that if we extend it again later (with the needed capability flag), it can't break userspace sending invalid data. Signed-off-by: Johannes Berg <johannes.berg@intel.com>
2012-11-26mac80211: move Mesh Capability field definition to ieee80211.hMarco Porsch
Signed-off-by: Marco Porsch <marco.porsch@etit.tu-chemnitz.de> [prefix with IEEE80211_] Signed-off-by: Johannes Berg <johannes.berg@intel.com>
2012-11-26cfg80211: change function signature of cfg80211_get_p2p_attr()Arend van Spriel
The function cfg80211_get_p2p_attr() can fail and returns a negative error code. However, the return type is unsigned int. The largest positive number is determined by desired_len variable in the function, which is u16. So changing the return type to int to allow easy error checking. Also change the type for the attribute to enum for improved type checking. Signed-off-by: Arend van Spriel <arend@broadcom.com> [fix indentation, don't use u8 attr variable] Signed-off-by: Johannes Berg <johannes.berg@intel.com>
2012-11-25Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/netDavid S. Miller
Conflicts: drivers/net/wireless/iwlwifi/pcie/tx.c Minor iwlwifi conflict in TX queue disabling between 'net', which removed a bogus warning, and 'net-next' which added some status register poking code. Signed-off-by: David S. Miller <davem@davemloft.net>
2012-11-23Merge tag 'devicetree-for-linus' of git://git.secretlab.ca/git/linux-2.6Linus Torvalds
Pull device tree regression fix from Grant Likely: "Simple build regression fix for DT device drivers on Sparc. An earlier change had masked out the of_iomap() helper on SPARC." * tag 'devicetree-for-linus' of git://git.secretlab.ca/git/linux-2.6: of/address: sparc: Declare of_iomap as an extern function for sparc again
2012-11-23of/address: sparc: Declare of_iomap as an extern function for sparc againAndreas Larsson
This bug-fix makes sure that of_iomap is defined extern for sparc so that the sparc-specific implementation of_iomap is once again used when including include/linux/of_address.h in a sparc context. OF_GPIO that is now available for sparc relies on this. The bug was inadvertently introduced in a850a75, "of/address: add empty static inlines for !CONFIG_OF", that added a static dummy inline for of_iomap when !CONFIG_OF_ADDRESS. However, CONFIG_OF_ADDRESS is never defined for sparc, but there is a sparc-specific implementation /arch/sparc/kernel/of_device_common.c. This fix takes the same approach as 0bce04b that solved the equivalent problem for of_address_to_resource. Signed-off-by: Andreas Larsson <andreas@gaisler.com> Acked-by: David Miller <davem@davemloft.net> Signed-off-by: Grant Likely <grant.likely@secretlab.ca>
2012-11-23Merge branch 'i2c-embedded/for-current' of ↵Linus Torvalds
git://git.pengutronix.de/git/wsa/linux Pull i2c fixes from Wolfram Sang: "Bugfixes for the i2c subsystem. Except for a few one-liners, there is mainly one revert because of an overlooked dependency. Since there is no linux-next at the moment, I did some extra testing, and all was fine for me." * 'i2c-embedded/for-current' of git://git.pengutronix.de/git/wsa/linux: i2c: mxs: Handle i2c DMA failure properly i2c: s3c2410: Fix code to free gpios i2c: omap: ensure writes to dev->buf_len are ordered Revert "ARM: OMAP: convert I2C driver to PM QoS for MPU latency constraints" i2c: at91: fix SMBus quick command
2012-11-23Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/netLinus Torvalds
Pull networkign fixes from David Miller: "Networking bug fixes, Cacio e Pepe edition: 1) BNX2X accidently accesses chip rev specific registers without an appropriate guard, fix from Ariel Elior. 2) When we removed the routing cache, we set ip_rt_max_size to ~0 just to keep reporting a value to userspace via sysfs. But the ipv4 IPSEC layer was using this to tune itself which is completely bogus to now do. Fix from Steffen Klassert. 3) Missing initialization in netfilter ipset code from Jozsef Kadlecsik. 4) Check CTA_TIMEOUT_NAME length properly in netfilter cttimeout code, fix from Florian Westphal. 5) After removing the routing cache, we inadvertantly are caching multicast routes that end up looping back locally, we cannot do that legitimately any more. Fix from Julian Anastasov. 6) Revert a race fix for 8139cp qemu/kvm that doesn't actually work properly on real hardware. From Francois Romieu. 7) Fixup errors in example command lines in VXLAN device docs." * git://git.kernel.org/pub/scm/linux/kernel/git/davem/net: bnx2x: remove redundant warning log vxlan: fix command usage in its doc 8139cp: revert "set ring address before enabling receiver" ipv4: do not cache looped multicasts netfilter: cttimeout: fix buffer overflow netfilter: ipset: Fix range bug in hash:ip,port,net xfrm: Fix the gc threshold value for ipv4
2012-11-23net: add micrel KSZ8873MLL switch supportJean-Christophe PLAGNIOL-VILLARD
this will allow to detect the link between the switch and the soc Signed-off-by: Jean-Christophe PLAGNIOL-VILLARD <plagnioj@jcrosoft.com> Cc: netdev@vger.kernel.org Signed-off-by: David S. Miller <davem@davemloft.net>
2012-11-23tcp: remove dead prototype for tcp_v4_get_peer()Neal Cardwell
This function no longer exists. Signed-off-by: Neal Cardwell <ncardwell@google.com> Signed-off-by: David S. Miller <davem@davemloft.net>