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2011-12-16Bluetooth: make hci_conn_enter_sniff_mode staticGustavo F. Padovan
It isn't used outside hci_conn.c Signed-off-by: Gustavo F. Padovan <padovan@profusion.mobi>
2011-12-16net: fix compilation with !CONFIG_NETGlauber Costa
Reported-by: Randy Dunlap <rdunlap@xenotime.net> Signed-off-by: Glauber Costa <glommer@parallels.com> CC: Hiroyouki Kamezawa <kamezawa.hiroyu@jp.fujitsu.com> CC: David S. Miller <davem@davemloft.net> CC: Eric Dumazet <eric.dumazet@gmail.com> CC: Stephen Rothwell <sfr@canb.auug.org.au> Signed-off-by: David S. Miller <davem@davemloft.net>
2011-12-16Bluetooth: Initialize LE connection countGustavo F. Padovan
le_num needs to be set to zero. Signed-off-by: Gustavo F. Padovan <padovan@profusion.mobi>
2011-12-16Bluetooth: remove lock from struct conn_hashGustavo F. Padovan
It isn't used anywhere. Signed-off-by: Gustavo F. Padovan <padovan@profusion.mobi>
2011-12-16Bluetooth: remove struct hci_chan_hashGustavo F. Padovan
Only the list member of the struct was used, so we now fold it into hci_conn. Signed-off-by: Gustavo F. Padovan <padovan@profusion.mobi>
2011-12-16af_unix: Export stuff required for diag modulePavel Emelyanov
Signed-off-by: Pavel Emelyanov <xemul@parallels.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2011-12-16cfg80211: allow following country IE power for custom regdom cardsLuis R. Rodriguez
By definition WIPHY_FLAG_STRICT_REGULATORY was intended to allow the wiphy to adjust itself to the country IE power information if the card had no regulatory data but we had no way to tell cfg80211 that if the card also had its own custom regulatory domain (these are typically custom world regulatory domains) that we want to follow the country IE's noted values for power for each channel. We add support for this and document it. This is not a critical fix but a performance optimization for cards with custom regulatory domains that associate to an AP with sends out country IEs with a higher EIRP than the one on the custom regulatory domain. In practice the only driver affected right now are the Atheros drivers as they are the only drivers using both WIPHY_FLAG_STRICT_REGULATORY and WIPHY_FLAG_CUSTOM_REGULATORY -- used on cards that have an Atheros world regulatory domain. Cards that have been programmed to follow a country specifically will not follow the country IE power. So although not a stable fix distributions should consider cherry picking this. Cc: compat@orbit-lab.org Cc: Paul Stewart <pstew@google.com> Cc: Rajkumar Manoharan <rmanohar@qca.qualcomm.com> Cc: Senthilkumar Balasubramanian <senthilb@qca.qualcomm.com> Reported-by: Rajkumar Manoharan <rmanohar@qca.qualcomm.com> Signed-off-by: Luis R. Rodriguez <mcgrof@qca.qualcomm.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2011-12-15cfg80211: validate nl80211 station handling betterJohannes Berg
The nl80211 station handling code is a bit messy and doesn't do a lot of validation. It seems like this could be an issue for drivers that don't use mac80211 to validate everything. As cfg80211 doesn't keep station state, move the validation of allowing supported_rates to change for TDLS only in station mode to mac80211. Signed-off-by: Johannes Berg <johannes.berg@intel.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2011-12-14NFC: Set and get DEP general bytesSamuel Ortiz
Without an API for setting and getting the local and remote general bytes, drivers won't be able to properly establish a DEP link. This API also allows them to propagate the remote general bytes they get from the DEP link establishment up to the LLCP layer. Signed-off-by: Samuel Ortiz <sameo@linux.intel.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2011-12-14NFC: Add a DEP link control netlink commandSamuel Ortiz
NFC-DEP (Data Exchange Protocol) is an NFC MAC layer. This command allows to enable and disable the DEP link on to which e.g. LLCP can run. Signed-off-by: Samuel Ortiz <sameo@linux.intel.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2011-12-14NFC: Add tx skb allocation routineSamuel Ortiz
This is a factorization of the current rawsock tx skb allocation routine, as it will be used by the LLCP code. We also rename nfc_alloc_skb to nfc_alloc_recv_skb for consistency sake. Signed-off-by: Samuel Ortiz <sameo@linux.intel.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2011-12-14inet: remove rcu protection on tw_netEric Dumazet
commit b099ce2602d806 (net: Batch inet_twsk_purge) added rcu protection on tw_net for no obvious reason. struct net are refcounted anyway since timewait sockets escape from rcu protected sections. tw_net stay valid for the whole timwait lifetime. This also removes a lot of sparse errors. Signed-off-by: Eric Dumazet <eric.dumazet@gmail.com> CC: Eric W. Biederman <ebiederm@xmission.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2011-12-13net: Remove unused neighbour layer ops.David S. Miller
It's simpler to just keep these things out until there is a real user of them, so we can see what the needs actually are, rather than keep these things around as useless overhead. Signed-off-by: David S. Miller <davem@davemloft.net>
2011-12-13cfg80211: Fix race in bss timeoutVasanthakumar Thiagarajan
It is quite possible to run into a race in bss timeout where the drivers see the bss entry just before notifying cfg80211 of a roaming event but it got timed out by the time rdev->event_work got scehduled from cfg80211_wq. This would result in the following WARN-ON() along with the failure to notify the user space of the roaming. The other situation which is happening with ath6kl that runs into issue is when the driver reports roam to same AP event where the AP bss entry already got expired. To fix this, move cfg80211_get_bss() from __cfg80211_roamed() to cfg80211_roamed(). [158645.538384] WARNING: at net/wireless/sme.c:586 __cfg80211_roamed+0xc2/0x1b1() [158645.538810] Call Trace: [158645.538838] [<c1033527>] warn_slowpath_common+0x65/0x7a [158645.538917] [<c14cfacf>] ? __cfg80211_roamed+0xc2/0x1b1 [158645.538946] [<c103354b>] warn_slowpath_null+0xf/0x13 [158645.539055] [<c14cfacf>] __cfg80211_roamed+0xc2/0x1b1 [158645.539086] [<c14beb5b>] cfg80211_process_rdev_events+0x153/0x1cc [158645.539166] [<c14bd57b>] cfg80211_event_work+0x26/0x36 [158645.539195] [<c10482ae>] process_one_work+0x219/0x38b [158645.539273] [<c14bd555>] ? wiphy_new+0x419/0x419 [158645.539301] [<c10486cb>] worker_thread+0xf6/0x1bf [158645.539379] [<c10485d5>] ? rescuer_thread+0x1b5/0x1b5 [158645.539407] [<c104b3e2>] kthread+0x62/0x67 [158645.539484] [<c104b380>] ? __init_kthread_worker+0x42/0x42 [158645.539514] [<c151309a>] kernel_thread_helper+0x6/0xd Reported-by: Kalle Valo <kvalo@qca.qualcomm.com> Signed-off-by: Vasanthakumar Thiagarajan <vthiagar@qca.qualcomm.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2011-12-13net: fix build error if CONFIG_CGROUPS=nEric Dumazet
Reported-by: Christoph Paasch <christoph.paasch@uclouvain.be> Signed-off-by: Eric Dumazet <eric.dumazet@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2011-12-12tcp buffer limitation: per-cgroup limitGlauber Costa
This patch uses the "tcp.limit_in_bytes" field of the kmem_cgroup to effectively control the amount of kernel memory pinned by a cgroup. This value is ignored in the root cgroup, and in all others, caps the value specified by the admin in the net namespaces' view of tcp_sysctl_mem. If namespaces are being used, the admin is allowed to set a value bigger than cgroup's maximum, the same way it is allowed to set pretty much unlimited values in a real box. Signed-off-by: Glauber Costa <glommer@parallels.com> Reviewed-by: Hiroyouki Kamezawa <kamezawa.hiroyu@jp.fujitsu.com> CC: David S. Miller <davem@davemloft.net> CC: Eric W. Biederman <ebiederm@xmission.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2011-12-12per-netns ipv4 sysctl_tcp_memGlauber Costa
This patch allows each namespace to independently set up its levels for tcp memory pressure thresholds. This patch alone does not buy much: we need to make this values per group of process somehow. This is achieved in the patches that follows in this patchset. Signed-off-by: Glauber Costa <glommer@parallels.com> Reviewed-by: KAMEZAWA Hiroyuki <kamezawa.hiroyu@jp.fujitsu.com> CC: David S. Miller <davem@davemloft.net> CC: Eric W. Biederman <ebiederm@xmission.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2011-12-12tcp memory pressure controlsGlauber Costa
This patch introduces memory pressure controls for the tcp protocol. It uses the generic socket memory pressure code introduced in earlier patches, and fills in the necessary data in cg_proto struct. Signed-off-by: Glauber Costa <glommer@parallels.com> Reviewed-by: KAMEZAWA Hiroyuki <kamezawa.hiroyu@jp.fujtisu.com> CC: Eric W. Biederman <ebiederm@xmission.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2011-12-12socket: initial cgroup code.Glauber Costa
The goal of this work is to move the memory pressure tcp controls to a cgroup, instead of just relying on global conditions. To avoid excessive overhead in the network fast paths, the code that accounts allocated memory to a cgroup is hidden inside a static_branch(). This branch is patched out until the first non-root cgroup is created. So when nobody is using cgroups, even if it is mounted, no significant performance penalty should be seen. This patch handles the generic part of the code, and has nothing tcp-specific. Signed-off-by: Glauber Costa <glommer@parallels.com> Reviewed-by: KAMEZAWA Hiroyuki <kamezawa.hiroyu@jp.fujtsu.com> CC: Kirill A. Shutemov <kirill@shutemov.name> CC: David S. Miller <davem@davemloft.net> CC: Eric W. Biederman <ebiederm@xmission.com> CC: Eric Dumazet <eric.dumazet@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2011-12-12foundations of per-cgroup memory pressure controlling.Glauber Costa
This patch replaces all uses of struct sock fields' memory_pressure, memory_allocated, sockets_allocated, and sysctl_mem to acessor macros. Those macros can either receive a socket argument, or a mem_cgroup argument, depending on the context they live in. Since we're only doing a macro wrapping here, no performance impact at all is expected in the case where we don't have cgroups disabled. Signed-off-by: Glauber Costa <glommer@parallels.com> Reviewed-by: Hiroyouki Kamezawa <kamezawa.hiroyu@jp.fujitsu.com> CC: David S. Miller <davem@davemloft.net> CC: Eric W. Biederman <ebiederm@xmission.com> CC: Eric Dumazet <eric.dumazet@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2011-12-12Merge branch 'master' of ↵John W. Linville
git://git.kernel.org/pub/scm/linux/kernel/git/linville/wireless-next into for-davem
2011-12-11net: use IS_ENABLED(CONFIG_IPV6)Eric Dumazet
Instead of testing defined(CONFIG_IPV6) || defined(CONFIG_IPV6_MODULE) Signed-off-by: Eric Dumazet <eric.dumazet@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2011-12-09udp: Export code sk lookup routinesPavel Emelyanov
The UDP diag get_exact handler will require them to find a socket by provided net, [sd]addr-s, [sd]ports and device. Signed-off-by: Pavel Emelyanov <xemul@parallels.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2011-12-09sch_red: generalize accurate MAX_P support to RED/GRED/CHOKEEric Dumazet
Now RED uses a Q0.32 number to store max_p (max probability), allow RED/GRED/CHOKE to use/report full resolution at config/dump time. Old tc binaries are non aware of new attributes, and still set/get Plog. New tc binary set/get both Plog and max_p for backward compatibility, they display "probability value" if they get max_p from new kernels. # tc -d qdisc show dev ... ... qdisc red 10: parent 1:1 limit 360Kb min 30Kb max 90Kb ecn ewma 5 probability 0.09 Scell_log 15 Make sure we avoid potential divides by 0 in reciprocal_value(), if (max_th - min_th) is big. Signed-off-by: Eric Dumazet <eric.dumazet@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2011-12-08sch_red: Adaptative RED AQMEric Dumazet
Adaptative RED AQM for linux, based on paper from Sally FLoyd, Ramakrishna Gummadi, and Scott Shenker, August 2001 : http://icir.org/floyd/papers/adaptiveRed.pdf Goal of Adaptative RED is to make max_p a dynamic value between 1% and 50% to reach the target average queue : (max_th - min_th) / 2 Every 500 ms: if (avg > target and max_p <= 0.5) increase max_p : max_p += alpha; else if (avg < target and max_p >= 0.01) decrease max_p : max_p *= beta; target :[min_th + 0.4*(min_th - max_th), min_th + 0.6*(min_th - max_th)]. alpha : min(0.01, max_p / 4) beta : 0.9 max_P is a Q0.32 fixed point number (unsigned, with 32 bits mantissa) Changes against our RED implementation are : max_p is no longer a negative power of two (1/(2^Plog)), but a Q0.32 fixed point number, to allow full range described in Adatative paper. To deliver a random number, we now use a reciprocal divide (thats really a multiply), but this operation is done once per marked/droped packet when in RED_BETWEEN_TRESH window, so added cost (compared to previous AND operation) is near zero. dump operation gives current max_p value in a new TCA_RED_MAX_P attribute. Example on a 10Mbit link : tc qdisc add dev $DEV parent 1:1 handle 10: est 1sec 8sec red \ limit 400000 min 30000 max 90000 avpkt 1000 \ burst 55 ecn adaptative bandwidth 10Mbit # tc -s -d qdisc show dev eth3 ... qdisc red 10: parent 1:1 limit 400000b min 30000b max 90000b ecn adaptative ewma 5 max_p=0.113335 Scell_log 15 Sent 50414282 bytes 34504 pkt (dropped 35, overlimits 1392 requeues 0) rate 9749Kbit 831pps backlog 72056b 16p requeues 0 marked 1357 early 35 pdrop 0 other 0 Signed-off-by: Eric Dumazet <eric.dumazet@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2011-12-06ipv6: Move xfrm_lookup() call down into icmp6_dst_alloc().David S. Miller
And return error pointers. Signed-off-by: David S. Miller <davem@davemloft.net>
2011-12-06ipv6: Make third arg to anycast_dst_alloc() bool.David S. Miller
Signed-off-by: David S. Miller <davem@davemloft.net>
2011-12-06nl80211: Parse channel type attribute in an ibss join requestAlexander Simon
Prepare cfg80211 for IBSS HT: * extend cfg80211 ibss struct with channel_type * Check if extension channel can be used * Export can_beacon_sec_chan for use in mac80211 (will be called from ibss.c later). Signed-off-by: Alexander Simon <an.alexsimon@googlemail.com> [siwu@hrz.tu-chemnitz.de: Updates] * fix cfg80211_can_beacon_ext_chan comment * remove implicit channel_type enum assumptions * remove radar channel flags check * add HT IBSS feature flag * reword commit message Signed-off-by: Simon Wunderlich <siwu@hrz.tu-chemnitz.de> Signed-off-by: Mathias Kretschmer <mathias.kretschmer@fokus.fraunhofer.de> Reviewed-by: Johannes Berg <johannes@sipsolutions.net> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2011-12-06Merge branch 'master' of ↵John W. Linville
git://git.kernel.org/pub/scm/linux/kernel/git/padovan/bluetooth-next
2011-12-06caif-spi: Bugfix for dump upon device removalErwan Bracq
Fix dump upon device removal, by moving deinitialization from platform-device-remove to network-interface-uninit. Signed-off-by: Sjur Brændeland <sjur.brandeland@stericsson.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2011-12-06Merge branch 'master' of ↵John W. Linville
git://git.kernel.org/pub/scm/linux/kernel/git/linville/wireless-next into for-davem
2011-12-05net: Rename dst_get_neighbour{, _raw} to dst_get_neighbour_noref{, _raw}.David Miller
To reflect the fact that a refrence is not obtained to the resulting neighbour entry. Signed-off-by: David S. Miller <davem@davemloft.net> Acked-by: Roland Dreier <roland@purestorage.com>
2011-12-04ipv6: add ip6_route_lookupFlorian Westphal
like rt6_lookup, but allows caller to pass in flowi6 structure. Will be used by the upcoming ipv6 netfilter reverse path filter match. Signed-off-by: Florian Westphal <fw@strlen.de> Acked-by: David S. Miller <davem@davemloft.net> Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
2011-12-03Merge branch 'for-upstream' of ↵David S. Miller
git://git.kernel.org/pub/scm/linux/kernel/git/jesse/openvswitch
2011-12-03ipv6: Kill ndisc_get_neigh() inline helper.David S. Miller
It's only used in net/ipv6/route.c and the NULL device check is superfluous for all of the existing call sites. Just expand the __ndisc_lookup_errno() call at each location. Signed-off-by: David S. Miller <davem@davemloft.net>
2011-12-03ipv6: Add fragment reporting to ipv6_skip_exthdr().Jesse Gross
While parsing through IPv6 extension headers, fragment headers are skipped making them invisible to the caller. This reports the fragment offset of the last header in order to make it possible to determine whether the packet is fragmented and, if so whether it is a first or last fragment. Signed-off-by: Jesse Gross <jesse@nicira.com>
2011-12-03genetlink: Add genl_notify()Pravin B Shelar
Open vSwitch uses Generic Netlink interface for communication between userspace and kernel module. genl_notify() is used for sending notification back to userspace. genl_notify() is analogous to rtnl_notify() but uses genl_sock instead of rtnl. Signed-off-by: Pravin B Shelar <pshelar@nicira.com> Signed-off-by: Jesse Gross <jesse@nicira.com>
2011-12-03Bluetooth: Remove magic bluetooth version numbersAndrei Emeltchenko
Use bluetooth names instead of BT SIG assigned numbers Signed-off-by: Andrei Emeltchenko <andrei.emeltchenko@intel.com> Acked-by: Marcel Holtmann <marcel@holtmann.org> Signed-off-by: Gustavo F. Padovan <padovan@profusion.mobi>
2011-12-02Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/netDavid S. Miller
2011-12-02treewide: Fix typos in various parts of the kernel, and fix some comments.Justin P. Mattock
The below patch fixes some typos in various parts of the kernel, as well as fixes some comments. Please let me know if I missed anything, and I will try to get it changed and resent. Signed-off-by: Justin P. Mattock <justinmattock@gmail.com> Acked-by: Randy Dunlap <rdunlap@xenotime.net> Signed-off-by: Jiri Kosina <jkosina@suse.cz>
2011-12-02Bluetooth: LE Set Scan Parameter CommandAndre Guedes
This patch adds the parameter struct and the command complete event handler to the LE Set Scan Parameter HCI command. Signed-off-by: Andre Guedes <andre.guedes@openbossa.org> Acked-by: Marcel Holtmann <marcel@holtmann.org> Signed-off-by: Gustavo F. Padovan <padovan@profusion.mobi>
2011-12-02Bluetooth: Add dev_flags to struct hci_devAndre Guedes
This patch adds the dev_flags field to struct hci_dev. This new flags variable should be used to define flags related to BR/EDR and/or LE controller itself. It should be used to define flags which represents states from the controller. The dev_flags is cleared in case the controller sends a Reset Command Complete Event to the host. Also, this patch adds the HCI_LE_SCAN flag which was created to track if the controller is performing LE scan or not. The flag is set/cleared when the controller starts/stops scanning. This is an initial effort to stop using hdev->flags to define internal flags since it is exported to userspace by an ioctl. Signed-off-by: Andre Guedes <andre.guedes@openbossa.org> Acked-by: Marcel Holtmann <marcel@holtmann.org> Signed-off-by: Gustavo F. Padovan <padovan@profusion.mobi>
2011-12-02Bluetooth: Add HCI Read Flow Control Mode functionAndrei Emeltchenko
Upstream Code Aurora function with minor trivial fixes. Origin: git://codeaurora.org/kernel/msm.git Signed-off-by: Andrei Emeltchenko <andrei.emeltchenko@intel.com> Acked-by: Marcel Holtmann <marcel@holtmann.org> Signed-off-by: Gustavo F. Padovan <padovan@profusion.mobi>
2011-12-01ipv4: use a 64bit load/store in output pathEric Dumazet
gcc compiler is smart enough to use a single load/store if we memcpy(dptr, sptr, 8) on x86_64, regardless of CONFIG_CC_OPTIMIZE_FOR_SIZE In IP header, daddr immediately follows saddr, this wont change in the future. We only need to make sure our flowi4 (saddr,daddr) fields wont break the rule. Signed-off-by: Eric Dumazet <eric.dumazet@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2011-12-01dsa: Include linux/if_ether.h to fix build errorAxel Lin
Include linux/if_ether.h to fix below build errors: CC arch/arm/mach-kirkwood/common.o In file included from arch/arm/mach-kirkwood/common.c:19: include/net/dsa.h: In function 'dsa_uses_dsa_tags': include/net/dsa.h:192: error: 'ETH_P_DSA' undeclared (first use in this function) include/net/dsa.h:192: error: (Each undeclared identifier is reported only once include/net/dsa.h:192: error: for each function it appears in.) include/net/dsa.h: In function 'dsa_uses_trailer_tags': include/net/dsa.h:197: error: 'ETH_P_TRAILER' undeclared (first use in this function) make[1]: *** [arch/arm/mach-kirkwood/common.o] Error 1 make: *** [arch/arm/mach-kirkwood] Error 2 Signed-off-by: Axel Lin <axel.lin@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2011-12-01Bluetooth: Add User Passkey Response handlingBrian Gix
For some MITM protection pairing scenarios, the user is required to enter or accept a 6 digit passkey. Signed-off-by: Brian Gix <bgix@codeaurora.org> Signed-off-by: Gustavo F. Padovan <padovan@profusion.mobi>
2011-11-30caif: Remove unused attributes from struct cflayersjur.brandeland@stericsson.com
Signed-off-by: Sjur Brændeland <sjur.brandeland@stericsson.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2011-11-30caif: Remove unused enum and parameter in cfserlsjur.brandeland@stericsson.com
Remove unused enum cfcnfg_phy_type and the parameter to cfserl_create. Signed-off-by: Sjur Brændeland <sjur.brandeland@stericsson.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2011-11-30caif: Restructure how link caif link layer enrollsjur.brandeland@stericsson.com
Enrolling CAIF link layers are refactored. Signed-off-by: Sjur Brændeland <sjur.brandeland@stericsson.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2011-11-30sch_red: fix red_calc_qavg_from_idle_timeEric Dumazet
Since commit a4a710c4a7490587 (pkt_sched: Change PSCHED_SHIFT from 10 to 6) it seems RED/GRED are broken. red_calc_qavg_from_idle_time() computes a delay in us units, but this delay is now 16 times bigger than real delay, so the final qavg result smaller than expected. Use standard kernel time services since there is no need to obfuscate them. Signed-off-by: Eric Dumazet <eric.dumazet@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
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