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2013-07-02net: sctp: prevent checksum.h from double inclusionDaniel Borkmann1-0/+5
The header file checksum.h is missing proper defines that prevents it from double inclusion. Signed-off-by: Daniel Borkmann <dborkman@redhat.com> Acked-by: Neil Horman <nhorman@tuxdriver.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2013-07-01ipv6,mcast: always hold idev->lock before mca_lockAmerigo Wang1-0/+3
dingtianhong reported the following deadlock detected by lockdep: ====================================================== [ INFO: possible circular locking dependency detected ] 3.4.24.05-0.1-default #1 Not tainted ------------------------------------------------------- ksoftirqd/0/3 is trying to acquire lock: (&ndev->lock){+.+...}, at: [<ffffffff8147f804>] ipv6_get_lladdr+0x74/0x120 but task is already holding lock: (&mc->mca_lock){+.+...}, at: [<ffffffff8149d130>] mld_send_report+0x40/0x150 which lock already depends on the new lock. the existing dependency chain (in reverse order) is: -> #1 (&mc->mca_lock){+.+...}: [<ffffffff810a8027>] validate_chain+0x637/0x730 [<ffffffff810a8417>] __lock_acquire+0x2f7/0x500 [<ffffffff810a8734>] lock_acquire+0x114/0x150 [<ffffffff814f691a>] rt_spin_lock+0x4a/0x60 [<ffffffff8149e4bb>] igmp6_group_added+0x3b/0x120 [<ffffffff8149e5d8>] ipv6_mc_up+0x38/0x60 [<ffffffff81480a4d>] ipv6_find_idev+0x3d/0x80 [<ffffffff81483175>] addrconf_notify+0x3d5/0x4b0 [<ffffffff814fae3f>] notifier_call_chain+0x3f/0x80 [<ffffffff81073471>] raw_notifier_call_chain+0x11/0x20 [<ffffffff813d8722>] call_netdevice_notifiers+0x32/0x60 [<ffffffff813d92d4>] __dev_notify_flags+0x34/0x80 [<ffffffff813d9360>] dev_change_flags+0x40/0x70 [<ffffffff813ea627>] do_setlink+0x237/0x8a0 [<ffffffff813ebb6c>] rtnl_newlink+0x3ec/0x600 [<ffffffff813eb4d0>] rtnetlink_rcv_msg+0x160/0x310 [<ffffffff814040b9>] netlink_rcv_skb+0x89/0xb0 [<ffffffff813eb357>] rtnetlink_rcv+0x27/0x40 [<ffffffff81403e20>] netlink_unicast+0x140/0x180 [<ffffffff81404a9e>] netlink_sendmsg+0x33e/0x380 [<ffffffff813c4252>] sock_sendmsg+0x112/0x130 [<ffffffff813c537e>] __sys_sendmsg+0x44e/0x460 [<ffffffff813c5544>] sys_sendmsg+0x44/0x70 [<ffffffff814feab9>] system_call_fastpath+0x16/0x1b -> #0 (&ndev->lock){+.+...}: [<ffffffff810a798e>] check_prev_add+0x3de/0x440 [<ffffffff810a8027>] validate_chain+0x637/0x730 [<ffffffff810a8417>] __lock_acquire+0x2f7/0x500 [<ffffffff810a8734>] lock_acquire+0x114/0x150 [<ffffffff814f6c82>] rt_read_lock+0x42/0x60 [<ffffffff8147f804>] ipv6_get_lladdr+0x74/0x120 [<ffffffff8149b036>] mld_newpack+0xb6/0x160 [<ffffffff8149b18b>] add_grhead+0xab/0xc0 [<ffffffff8149d03b>] add_grec+0x3ab/0x460 [<ffffffff8149d14a>] mld_send_report+0x5a/0x150 [<ffffffff8149f99e>] igmp6_timer_handler+0x4e/0xb0 [<ffffffff8105705a>] call_timer_fn+0xca/0x1d0 [<ffffffff81057b9f>] run_timer_softirq+0x1df/0x2e0 [<ffffffff8104e8c7>] handle_pending_softirqs+0xf7/0x1f0 [<ffffffff8104ea3b>] __do_softirq_common+0x7b/0xf0 [<ffffffff8104f07f>] __thread_do_softirq+0x1af/0x210 [<ffffffff8104f1c1>] run_ksoftirqd+0xe1/0x1f0 [<ffffffff8106c7de>] kthread+0xae/0xc0 [<ffffffff814fff74>] kernel_thread_helper+0x4/0x10 actually we can just hold idev->lock before taking pmc->mca_lock, and avoid taking idev->lock again when iterating idev->addr_list, since the upper callers of mld_newpack() already take read_lock_bh(&idev->lock). Reported-by: dingtianhong <dingtianhong@huawei.com> Cc: dingtianhong <dingtianhong@huawei.com> Cc: Hideaki YOSHIFUJI <yoshfuji@linux-ipv6.org> Cc: David S. Miller <davem@davemloft.net> Cc: Hannes Frederic Sowa <hannes@stressinduktion.org> Tested-by: Ding Tianhong <dingtianhong@huawei.com> Tested-by: Chen Weilong <chenweilong@huawei.com> Signed-off-by: Cong Wang <amwang@redhat.com> Acked-by: Hannes Frederic Sowa <hannes@stressinduktion.org> Signed-off-by: David S. Miller <davem@davemloft.net>
2013-07-01net: sctp: rework debugging framework to use pr_debug and friendsDaniel Borkmann1-75/+0
We should get rid of all own SCTP debug printk macros and use the ones that the kernel offers anyway instead. This makes the code more readable and conform to the kernel code, and offers all the features of dynamic debbuging that pr_debug() et al has, such as only turning on/off portions of debug messages at runtime through debugfs. The runtime cost of having CONFIG_DYNAMIC_DEBUG enabled, but none of the debug statements printing, is negligible [1]. If kernel debugging is completly turned off, then these statements will also compile into "empty" functions. While we're at it, we also need to change the Kconfig option as it /now/ only refers to the ifdef'ed code portions in outqueue.c that enable further debugging/tracing of SCTP transaction fields. Also, since SCTP_ASSERT code was enabled with this Kconfig option and has now been removed, we transform those code parts into WARNs resp. where appropriate BUG_ONs so that those bugs can be more easily detected as probably not many people have SCTP debugging permanently turned on. To turn on all SCTP debugging, the following steps are needed: # mount -t debugfs none /sys/kernel/debug # echo -n 'module sctp +p' > /sys/kernel/debug/dynamic_debug/control This can be done more fine-grained on a per file, per line basis and others as described in [2]. [1] https://www.kernel.org/doc/ols/2009/ols2009-pages-39-46.pdf [2] Documentation/dynamic-debug-howto.txt Signed-off-by: Daniel Borkmann <dborkman@redhat.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2013-07-01net: avoid calling sched_clock when LLS is offEliezer Tamir1-2/+15
Change Low Latency Sockets code for select and poll so that when LLS is disabled sched_clock() is never called. Also, avoid sending POLL_LL to sockets if disabled. Reported-by: Andi Kleen <andi@firstfloor.org> Signed-off-by: Eliezer Tamir <eliezer.tamir@linux.intel.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2013-07-01net: fix LLS debug_smp_processor_id() warningEliezer Tamir1-5/+25
Our use of sched_clock is OK because we don't mind the side effects of calling it and occasionally waking up on a different CPU. When CONFIG_DEBUG_PREEMPT is on, disable preempt before calling sched_clock() so we don't trigger a debug_smp_processor_id() warning. Reported-by: Cody P Schafer <devel-lists@codyps.com> Signed-off-by: Eliezer Tamir <eliezer.tamir@linux.intel.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2013-07-01Merge branch 'for-davem' of ↵David S. Miller5-28/+52
git://git.kernel.org/pub/scm/linux/kernel/git/linville/wireless-next John W. Linville says: ==================== Yet one more pull request for wireless updates intended for 3.11... For the mac80211 bits, Johannes says: "Here we have a few memory leak fixes related to BSS struct handling mostly from Ben, including a fix for a more theoretical problem (associating while a BSS struct times out) from myself, a compilation warning fix from Arend, mesh fixes from Thomas, tracking the beacon bitrate (Alex), a bandwidth change event fix (Ilan) and some initial work for 5/10 MHz channels from Simon." Regarding the iwlwifi bits, Johannes says: "Emmanuel removed some unneeded/unsupported module parameters and adds a Bluetooth 1x1 lookup-table for some upcoming products. From Alex I have an older patch to add low-power receive support, this depended on a mac80211 commit that only just came in with the merge from wireless-next I did. Ilan made beacon timings better, and Eytan added some debug statements for thermal throttling. I have a few cleanups, a fix for a long-standing but rare warning, and, arguably the most important patch here, the firmware API version bump for the 7260/3160 devices." Also included is a Bluetooth pull -- Gustavo says: "Here goes a set of patches to 3.11. The biggest work here is from Andre Guedes on the move of the Discovery to use the new request framework. Other than that Johan provided a bunch of fixes to the L2CAP code. The rest are just small fixes and clean ups." On top of all that, there are a variety of updates and fixes to brcmfmac, rt2x00, wil6210, ath9k, ath10k, and a few others here and there. This also includes a pull of the wireless tree, in order to prevent some merge conflicts. ==================== Signed-off-by: David S. Miller <davem@davemloft.net>
2013-06-30Merge branch 'master' of ↵David S. Miller2-36/+50
git://git.kernel.org/pub/scm/linux/kernel/git/pablo/nf-next Pablo Neira Ayuso says: ==================== The following batch contains Netfilter/IPVS updates for net-next, they are: * Enforce policy to several nfnetlink subsystem, from Daniel Borkmann. * Use xt_socket to match the third packet (to perform simplistic socket-based stateful filtering), from Eric Dumazet. * Avoid large timeout for picked up from the middle TCP flows, from Florian Westphal. * Exclude IPVS from struct net if IPVS is disabled and removal of unnecessary included header file, from JunweiZhang. * Release SCTP connection immediately under load, to mimic current TCP behaviour, from Julian Anastasov. * Replace and enhance SCTP state machine, from Julian Anastasov. * Add tweak to reduce sync traffic in the presence of persistence, also from Julian Anastasov. * Add tweak for the IPVS SH scheduler not to reject connections directed to a server, choose a new one instead, from Alexander Frolkin. * Add support for sloppy TCP and SCTP modes, that creates state information on any packet, not only initial handshake packets, from Alexander Frolkin. ==================== Signed-off-by: David S. Miller <davem@davemloft.net>
2013-06-28ipv4: use next hop exceptions also for input routesTimo Teräs1-1/+2
Commit d2d68ba9 (ipv4: Cache input routes in fib_info nexthops) assmued that "locally destined, and routed packets, never trigger PMTU events or redirects that will be processed by us". However, it seems that tunnel devices do trigger PMTU events in certain cases. At least ip_gre, ip6_gre, sit, and ipip do use the inner flow's skb_dst(skb)->ops->update_pmtu to propage mtu information from the outer flows. These can cause the inner flow mtu to be decreased. If next hop exceptions are not consulted for pmtu, IP fragmentation will not be done properly for these routes. It also seems that we really need to have the PMTU information always for netfilter TCPMSS clamp-to-pmtu feature to work properly. So for the time being, cache separate copies of input routes for each next hop exception. Signed-off-by: Timo Teräs <timo.teras@iki.fi> Reviewed-by: Julian Anastasov <ja@ssi.bg> Signed-off-by: David S. Miller <davem@davemloft.net>
2013-06-28ipv6: resend MLD report if a link-local address completes DADHannes Frederic Sowa2-0/+3
RFC3590/RFC3810 specifies we should resend MLD reports as soon as a valid link-local address is available. We now use the valid_ll_addr_cnt to check if it is necessary to resend a new report. Changes since Flavio Leitner's version: a) adapt for valid_ll_addr_cnt b) resend first reports directly in the path and just arm the timer for mc_qrv-1 resends. Reported-by: Flavio Leitner <fleitner@redhat.com> Cc: Hideaki YOSHIFUJI <yoshfuji@linux-ipv6.org> Cc: David Stevens <dlstevens@us.ibm.com> Signed-off-by: Hannes Frederic Sowa <hannes@stressinduktion.org> Signed-off-by: Flavio Leitner <fbl@redhat.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2013-06-28ipv6: introduce per-interface counter for dad-completed ipv6 addressesHannes Frederic Sowa1-0/+1
To reduce the number of unnecessary router solicitations, MLDv2 and IGMPv3 messages we need to track the number of valid (as in non-optimistic, no-dad-failed and non-tentative) link-local addresses. Therefore, this patch implements a valid_ll_addr_cnt in struct inet6_dev. We now only emit router solicitations if the first link-local address finishes duplicate address detection. The changes for MLDv2 and IGMPv3 are in a follow-up patch. While there, also simplify one if statement(one minor nit I made in one of my previous patches): if (!...) do(); else return; <<into>> if (...) return; do(); Cc: Flavio Leitner <fbl@redhat.com> Cc: YOSHIFUJI Hideaki <yoshfuji@linux-ipv6.org> Cc: David Stevens <dlstevens@us.ibm.com> Suggested-by: David Stevens <dlstevens@us.ibm.com> Signed-off-by: Hannes Frederic Sowa <hannes@stressinduktion.org> Acked-by: Flavio Leitner <fbl@redhat.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2013-06-28Merge branch 'master' of ↵John W. Linville5-28/+52
git://git.kernel.org/pub/scm/linux/kernel/git/linville/wireless-next into for-davem Conflicts: net/wireless/nl80211.c
2013-06-27sit: add support of x-netnsNicolas Dichtel1-0/+1
This patch allows to switch the netns when packet is encapsulated or decapsulated. In other word, the encapsulated packet is received in a netns, where the lookup is done to find the tunnel. Once the tunnel is found, the packet is decapsulated and injecting into the corresponding interface which stands to another netns. When one of the two netns is removed, the tunnel is destroyed. Signed-off-by: Nicolas Dichtel <nicolas.dichtel@6wind.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2013-06-26netns: exclude ipvs from struct net when IPVS disabledJunweiZhang1-0/+2
no real problem is fixed, just save a few bytes in net_namespace structure. Signed-off-by: JunweiZhang <junwei.zhang@6wind.com> Signed-off-by: Nicolas Dichtel <nicolas.dichtel@6wind.com> Reviewed-by: Julian Anastasov <ja@ssi.bg> Signed-off-by: Simon Horman <horms@verge.net.au>
2013-06-26ipvs: add sync_persist_mode flagJulian Anastasov1-0/+11
Add sync_persist_mode flag to reduce sync traffic by syncing only persistent templates. Signed-off-by: Julian Anastasov <ja@ssi.bg> Tested-by: Aleksey Chudov <aleksey.chudov@gmail.com> Signed-off-by: Simon Horman <horms@verge.net.au>
2013-06-26ipvs: replace the SCTP state machineJulian Anastasov1-10/+11
Convert the SCTP state table, so that it is more readable. Change the states to be according to the diagram in RFC 2960 and add more states suitable for middle box. Still, such change in states adds incompatibility if systems in sync setup include this change and others do not include it. With this change we also have proper transitions in INPUT-ONLY mode (DR/TUN) where we see packets only from client. Now we should not switch to 10-second CLOSED state at a time when we should stay in ESTABLISHED state. The short names for states are because we have 16-char space in ipvsadm and 11-char limit for the connection list format. It is a sequence of the TCP implementation where the longest state name is ESTABLISHED. Signed-off-by: Julian Anastasov <ja@ssi.bg> Signed-off-by: Simon Horman <horms@verge.net.au>
2013-06-26ipvs: sloppy TCP and SCTPAlexander Frolkin1-0/+24
This adds support for sloppy TCP and SCTP modes to IPVS. When enabled (sysctls net.ipv4.vs.sloppy_tcp and net.ipv4.vs.sloppy_sctp), allows IPVS to create connection state on any packet, not just a TCP SYN (or SCTP INIT). This allows connections to fail over from one IPVS director to another mid-flight. Signed-off-by: Alexander Frolkin <avf@eldamar.org.uk> Signed-off-by: Julian Anastasov <ja@ssi.bg> Signed-off-by: Simon Horman <horms@verge.net.au>
2013-06-26ipvs: provide iph to schedulersJulian Anastasov1-26/+2
Before now the schedulers needed access only to IP addresses and it was easy to get them from skb by using ip_vs_fill_iph_addr_only. New changes for the SH scheduler will need the protocol and ports which is difficult to get from skb for the IPv6 case. As we have all the data in the iph structure, to avoid the same slow lookups provide the iph to schedulers. Signed-off-by: Julian Anastasov <ja@ssi.bg> Acked-by: Hans Schillstrom <hans@schillstrom.com> Signed-off-by: Simon Horman <horms@verge.net.au>
2013-06-25net: poll/select low latency socket supportEliezer Tamir1-13/+22
select/poll busy-poll support. Split sysctl value into two separate ones, one for read and one for poll. updated Documentation/sysctl/net.txt Add a new poll flag POLL_LL. When this flag is set, sock_poll will call sk_poll_ll if possible. sock_poll sets this flag in its return value to indicate to select/poll when a socket that can busy poll is found. When poll/select have nothing to report, call the low-level sock_poll again until we are out of time or we find something. Once the system call finds something, it stops setting POLL_LL, so it can return the result to the user ASAP. Signed-off-by: Eliezer Tamir <eliezer.tamir@linux.intel.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2013-06-25net: sctp: migrate cookie life from timeval to ktimeDaniel Borkmann2-21/+3
Currently, SCTP code defines its own timeval functions (since timeval is rarely used inside the kernel by others), namely tv_lt() and TIMEVAL_ADD() macros, that operate on SCTP cookie expiration. We might as well remove all those, and operate directly on ktime structures for a couple of reasons: ktime is available on all archs; complexity of ktime calculations depending on the arch is less than (reduces to a simple arithmetic operations on archs with BITS_PER_LONG == 64 or CONFIG_KTIME_SCALAR) or equal to timeval functions (other archs); code becomes more readable; macros can be thrown out. Signed-off-by: Daniel Borkmann <dborkman@redhat.com> Acked-by: Vlad Yasevich <vyasevich@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2013-06-25net: sctp: remove TEST_FRAME ifdefDaniel Borkmann1-7/+0
We do neither ship a test_frame.h, nor will this be compatible with the 2.5 out-of-tree lksctp kernel test suite anyway. So remove this artefact. Signed-off-by: Daniel Borkmann <dborkman@redhat.com> Acked-by: Vlad Yasevich <vyasevich@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2013-06-25ipv6: split duplicate address detection and router solicitation timerHannes Frederic Sowa1-2/+6
This patch splits the timers for duplicate address detection and router solicitations apart. The router solicitations timer goes into inet6_dev and the dad timer stays in inet6_ifaddr. The reason behind this patch is to reduce the number of unneeded router solicitations send out by the host if additional link-local addresses are created. Currently we send out RS for every link-local address on an interface. If the RS timer fires we pick a source address with ipv6_get_lladdr. This change could hurt people adding additional link-local addresses and specifying these addresses in the radvd clients section because we no longer guarantee that we use every ll address as source address in router solicitations. Cc: Flavio Leitner <fleitner@redhat.com> Cc: Hideaki YOSHIFUJI <yoshfuji@linux-ipv6.org> Cc: David Stevens <dlstevens@us.ibm.com> Signed-off-by: Hannes Frederic Sowa <hannes@stressinduktion.org> Reviewed-by: Flavio Leitner <fbl@redhat.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2013-06-25tcp: remove invalid __rcu annotationEric Dumazet1-3/+3
struct tcp_fastopen_context has a field named tfm, which is a pointer to a crypto_cipher structure. It currently has a __rcu annotation, which is not needed at all. tcp_fastopen_ctx is the pointer fetched by rcu_dereference(), but once we have a pointer to current tcp_fastopen_context, we do not use/need rcu_dereference() to access tfm. This fixes a lot of sparse errors like the following : net/ipv4/tcp_fastopen.c:21:31: warning: incorrect type in argument 1 (different address spaces) net/ipv4/tcp_fastopen.c:21:31: expected struct crypto_cipher *tfm net/ipv4/tcp_fastopen.c:21:31: got struct crypto_cipher [noderef] <asn:4>*tfm Signed-off-by: Eric Dumazet <edumazet@google.com> Cc: Jerry Chu <hkchu@google.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2013-06-24Merge branch 'for-upstream' of ↵John W. Linville3-20/+12
git://git.kernel.org/pub/scm/linux/kernel/git/bluetooth/bluetooth-next
2013-06-24Merge branch 'for-john' of ↵John W. Linville2-8/+40
git://git.kernel.org/pub/scm/linux/kernel/git/jberg/mac80211-next
2013-06-24Merge branch 'for-davem' of ↵David S. Miller5-77/+149
git://git.kernel.org/pub/scm/linux/kernel/git/linville/wireless-next John W. Linville says: ==================== I would guess that this is the last big wireless pull request before the 3.11 merge window... Regarding the mac80211 bits, Johannes says: "I have a number of mesh fixes and improvements from Colleen, Jacob, Ashok and Thomas, powersave fixes in mac80211 from Alex, improved management-TX from Antonio, and a few various things, including locking fixes, from others and myself. Overall though, nothing really stands out." As for the iwlwifi bits, Johannes says: "Emmanuel contributed two AP mode fixes, removed an unused field, fixed a comment and added a warning for something that shouldn't happen in practice, and I removed the declaration of a function that doesn't even exist and cleaned up a small include." "This time I have a number of cleanups, a small fix from Emmanuel and two performance improvements that combined reduce our driver's CPU utilisation as much as 75% in high TX-throughput scenarios." "These two patches fix two issues with using rfkill randomly during traffic, which would then cause our driver to stop working and not be able to recover at all." Regarding the ath6kl bits, Kalle says: "Here are few simple patches for ath6kl. We have a suspend crash fix for USB from Shafi, use of mac_pton(), a compiler warning fix and a fix for module initialisation error path." Kalle also sends the biggest single item of note, the new ath10k driver for Qualcomm Atheros 802.11ac CQA98xx devices. Included is an NFC pull, of which Samuel says: "These are the pending NFC patches for the 3.11 merge window. It contains the pending fixes that were on nfc-fixes (nfc-fixes-3.10-2), along with a few more for the pn544 and pn533 drivers, the LLCP disconnection path and an LLCP memory leak. Highlights for this one are: - An initial secure element API. NFC chipsets can carry an embedded secure element or get access to the SIM one. In both cases they control the secure elements and this API provides a way to discover, enable and disable the available SEs. It also exports that to userspace in order for SE focused middleware to actually do something with them (e.g. payments). - NCI over SPI support. SPI is the most complex NCI specified transport layer and we now have support for it in the kernel. The next step will be to implement drivers for NCI chipsets using this transport like e.g. bcm2079x. - NFC p2p hardware simulation driver. We now have an nfcsim driver that is mostly a loopback device between 2 NFC interfaces. It also implements the rest of the NFC core API like polling and target detection. This driver, with neard running on top of it, allows us to completely test the LLCP, SNEP and Handover implementation without physical hardware. - A Firmware update netlink API. Most (All ?) HCI chipsets have a special firmware update mode where applications can push a new firmware that will be flashed. We now have a netlink API for providing that mode to e.g. nfctool." On top of all that, there are a variety of updates to brcmfmac, iwlegacy, rtlwifi, wil6210, and the TI wl12xx drivers. As usual, the bcma and ssb busses get a little love as well, as do a handful of others here and there. ==================== Signed-off-by: David S. Miller <davem@davemloft.net>
2013-06-24ip_tunnel: Protect tunnel functions with CONFIG_INET guard.Jesse Gross1-0/+5
Tunnel constants can be used in generic code but in these cases the inline functions in ip_tunnels.h cause compilation problems if CONFIG_INET is not set. CC: Pravin Shelar <pshelar@nicira.com> Reported-by: Randy Dunlap <rdunlap@infradead.org> Signed-off-by: Jesse Gross <jesse@nicira.com> Acked-by: Randy Dunlap <rdunlap@infradead.org> Signed-off-by: David S. Miller <davem@davemloft.net>
2013-06-23Bluetooth: Remove unneeded flagAndrei Emeltchenko1-1/+0
Remove HCI_LINK_KEYS flag since using HCI_MGMT is enough for test that user space expects the kernel managing link keys. Signed-off-by: Andrei Emeltchenko <andrei.emeltchenko@intel.com> Acked-by: Johan Hedberg <johan.hedberg@intel.com> Signed-off-by: Gustavo Padovan <gustavo.padovan@collabora.co.uk>
2013-06-23Bluetooth: Remove inquiry helpersAndre Guedes1-2/+0
This patch removes hci_do_inquiry and hci_cancel_inquiry helpers. We now use the HCI request framework in device discovery functionality and these helpers are no longer needed. Signed-off-by: Andre Guedes <andre.guedes@openbossa.org> Acked-by: Johan Hedberg <johan.hedberg@intel.com> Signed-off-by: Gustavo Padovan <gustavo.padovan@collabora.co.uk>
2013-06-23Bluetooth: Remove LE scan helpersAndre Guedes1-13/+0
This patch removes the LE scan helpers hci_le_scan and hci_cancel_ le_scan and all code related to it. We now use the HCI request framework in device discovery functionality and these helpers are no longer needed. Signed-off-by: Andre Guedes <andre.guedes@openbossa.org> Acked-by: Johan Hedberg <johan.hedberg@intel.com> Signed-off-by: Gustavo Padovan <gustavo.padovan@collabora.co.uk>
2013-06-23Bluetooth: Make mgmt_stop_discovery_failed staticAndre Guedes1-1/+0
mgmt_stop_discovery_failed is now only used in mgmt.c so we can make it a local function. This patch also moves the mgmt_stop_ discovery_failed definition up in mgmt.c to avoid forward declaration. Signed-off-by: Andre Guedes <andre.guedes@openbossa.org> Signed-off-by: Gustavo Padovan <gustavo.padovan@collabora.co.uk>
2013-06-23Bluetooth: Use HCI request in interleaved discoveryAndre Guedes1-1/+0
In order to have a better HCI error handling in interleaved discovery functionality, we should use the HCI request framework. This patch updates le_scan_disable_work function so it uses the HCI request framework instead of the hci_send_cmd helper. A complete callback is registered (le_scan_disable_work_complete function) so we are able to trigger the inquiry procedure (if we are running the interleaved discovery) or to stop the discovery procedure (if we are running LE-only discovery). This patch also removes the extra logic in hci_cc_le_set_scan_enable to trigger the inquiry procedure and the mgmt_interleaved_discovery function since they become useless. Signed-off-by: Andre Guedes <andre.guedes@openbossa.org> Signed-off-by: Gustavo Padovan <gustavo.padovan@collabora.co.uk>
2013-06-23Bluetooth: Move discovery macros to hci_core.hAndre Guedes1-0/+10
Some of discovery macros will be used in hci_core so we need to define them in common place such as hci_core.h. Thus, this patch moves discovery macros to hci_core.h and also adds the DISCOV_ prefix to them. Signed-off-by: Andre Guedes <andre.guedes@openbossa.org> Acked-by: Johan Hedberg <johan.hedberg@intel.com> Signed-off-by: Gustavo Padovan <gustavo.padovan@collabora.co.uk>
2013-06-23Bluetooth: Make mgmt_start_discovery_failed staticAndre Guedes1-1/+0
mgmt_start_discovery_failed is now only used in mgmt.c so we can make it a local function. This patch also moves the mgmt_start_ discovery_failed definition up in mgmt.c to avoid forward declaration. Signed-off-by: Andre Guedes <andre.guedes@openbossa.org> Signed-off-by: Gustavo Padovan <gustavo.padovan@collabora.co.uk>
2013-06-23Bluetooth: Make inquiry_cache_flush non-staticAndre Guedes1-0/+1
In order to use HCI request framework in start_discovery, we'll need to call inquiry_cache_flush in mgmt.c. Therefore, this patch adds the hci_ prefix to inquiry_cache_flush and makes it non-static. Signed-off-by: Andre Guedes <andre.guedes@openbossa.org> Acked-by: Johan Hedberg <johan.hedberg@intel.com> Signed-off-by: Gustavo Padovan <gustavo.padovan@collabora.co.uk>
2013-06-23Bluetooth: Rename L2CAP_CID_LE_DATA to L2CAP_CID_ATTJohan Hedberg1-1/+1
In future Core Specification versions the ATT CID will be just one of many possible CIDs that can be used for data transfer. Therefore, it makes sense to rename the define for the ATT CID to something less ambigous. Signed-off-by: Johan Hedberg <johan.hedberg@intel.com> Acked-by: Marcel Holtmann <marcel@holtmann.org> Signed-off-by: Gustavo Padovan <gustavo.padovan@collabora.co.uk>
2013-06-21Merge branch 'master' of ↵John W. Linville5-77/+149
git://git.kernel.org/pub/scm/linux/kernel/git/linville/wireless-next into for-davem Conflicts: net/wireless/nl80211.c
2013-06-19ndisc: Convert use of typedef ctl_table to struct ctl_tableJoe Perches1-1/+1
This typedef is unnecessary and should just be removed. Signed-off-by: Joe Perches <joe@perches.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2013-06-19ipv6: Convert use of typedef ctl_table to struct ctl_tableJoe Perches1-2/+2
This typedef is unnecessary and should just be removed. Signed-off-by: Joe Perches <joe@perches.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2013-06-19net: sock: adapt SOCK_MIN_RCVBUF and SOCK_MIN_SNDBUFDaniel Borkmann1-6/+9
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>
2013-06-19ip_tunnel: Add dont fragment flag.Pravin B Shelar1-0/+1
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>
2013-06-19ip_tunnel: push generic protocol handling to ip_tunnel module.Pravin B Shelar1-0/+1
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>
2013-06-19ip_tunnels: extend iptunnel_xmit()Pravin B Shelar1-11/+15
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>
2013-06-19gre: export gre_handle_offloads() function.Pravin B Shelar1-0/+1
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>
2013-06-19gre: export gre_build_header() function.Pravin B Shelar1-0/+2
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>
2013-06-19gre: Allow multiple protocol listener for gre protocol.Pravin B Shelar1-0/+24
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>
2013-06-19Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/netDavid S. Miller3-3/+5
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>
2013-06-19cfg80211: require passing BSS struct back to cfg80211_assoc_timeoutJohannes Berg1-8/+8
Doing so will allow us to hold the BSS (not just ref it) over the association process, thus ensuring that it doesn't time out and gets invisible to the user (e.g. in 'iw wlan0 link'.) This also fixes a leak in mac80211 where it doesn't always release the BSS struct properly in all cases where calling this function. This leak was reported by Ben Greear. Signed-off-by: Johannes Berg <johannes.berg@intel.com>
2013-06-18nl80211: add rate flags for 5/10 Mhz channelsSimon Wunderlich1-0/+28
Signed-off-by: Simon Wunderlich <siwu@hrz.tu-chemnitz.de> Signed-off-by: Mathias Kretschmer <mathias.kretschmer@fokus.fraunhofer.de> Signed-off-by: Johannes Berg <johannes.berg@intel.com>
2013-06-18nl80211/cfg80211: add 5 and 10 MHz defines and wiphy flagSimon Wunderlich1-0/+2
Add defines for 5 and 10 MHz channel width and fix channel handling functions accordingly. Also check for and report the WIPHY_FLAG_SUPPORTS_5_10_MHZ capability. Signed-off-by: Simon Wunderlich <siwu@hrz.tu-chemnitz.de> Signed-off-by: Mathias Kretschmer <mathias.kretschmer@fokus.fraunhofer.de> [fix spelling in comment] Signed-off-by: Johannes Berg <johannes.berg@intel.com>
2013-06-17net: sctp: remove SCTP_STATIC macroDaniel Borkmann1-8/+0
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>
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