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2017-03-13Revert "netfilter: nf_tables: add flush field to struct nft_set_iter"Pablo Neira Ayuso
This reverts commit 1f48ff6c5393aa7fe290faf5d633164f105b0aa7. This patch is not required anymore now that we keep a dummy list of set elements in the bitmap set implementation, so revert this before we forget this code has no clients. Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
2017-03-13netfilter: nft_fib: Support existence checkPhil Sutter
Instead of the actual interface index or name, set destination register to just 1 or 0 depending on whether the lookup succeeded or not if NFTA_FIB_F_PRESENT was set in userspace. Signed-off-by: Phil Sutter <phil@nwl.cc> Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
2017-03-13netfilter: provide nft_ctx in object init functionFlorian Westphal
this is needed by the upcoming ct helper object type -- we'd like to be able use the table family (ip, ip6, inet) to figure out which helper has to be requested. Signed-off-by: Florian Westphal <fw@strlen.de> Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
2017-03-13netfilter: Force fake conntrack entry to be at least 8 bytes alignedSteven Rostedt (VMware)
Since the nfct and nfctinfo have been combined, the nf_conn structure must be at least 8 bytes aligned, as the 3 LSB bits are used for the nfctinfo. But there's a fake nf_conn structure to denote untracked connections, which is created by a PER_CPU construct. This does not guarantee that it will be 8 bytes aligned and can break the logic in determining the correct nfctinfo. I triggered this on a 32bit machine with the following error: BUG: unable to handle kernel NULL pointer dereference at 00000af4 IP: nf_ct_deliver_cached_events+0x1b/0xfb *pdpt = 0000000031962001 *pde = 0000000000000000 Oops: 0000 [#1] SMP [Modules linked in: ip6t_REJECT nf_reject_ipv6 nf_conntrack_ipv6 nf_defrag_ipv6 ip6table_filter ip6_tables ipv6 crc_ccitt ppdev r8169 parport_pc parport OK ] CPU: 0 PID: 0 Comm: swapper/0 Not tainted 4.10.0-test+ #75 Hardware name: MSI MS-7823/CSM-H87M-G43 (MS-7823), BIOS V1.6 02/22/2014 task: c126ec00 task.stack: c1258000 EIP: nf_ct_deliver_cached_events+0x1b/0xfb EFLAGS: 00010202 CPU: 0 EAX: 0021cd01 EBX: 00000000 ECX: 27b0c767 EDX: 32bcb17a ESI: f34135c0 EDI: f34135c0 EBP: f2debd60 ESP: f2debd3c DS: 007b ES: 007b FS: 00d8 GS: 0000 SS: 0068 CR0: 80050033 CR2: 00000af4 CR3: 309a0440 CR4: 001406f0 Call Trace: <SOFTIRQ> ? ipv6_skip_exthdr+0xac/0xcb ipv6_confirm+0x10c/0x119 [nf_conntrack_ipv6] nf_hook_slow+0x22/0xc7 nf_hook+0x9a/0xad [ipv6] ? ip6t_do_table+0x356/0x379 [ip6_tables] ? ip6_fragment+0x9e9/0x9e9 [ipv6] ip6_output+0xee/0x107 [ipv6] ? ip6_fragment+0x9e9/0x9e9 [ipv6] dst_output+0x36/0x4d [ipv6] NF_HOOK.constprop.37+0xb2/0xba [ipv6] ? icmp6_dst_alloc+0x2c/0xfd [ipv6] ? local_bh_enable+0x14/0x14 [ipv6] mld_sendpack+0x1c5/0x281 [ipv6] ? mark_held_locks+0x40/0x5c mld_ifc_timer_expire+0x1f6/0x21e [ipv6] call_timer_fn+0x135/0x283 ? detach_if_pending+0x55/0x55 ? mld_dad_timer_expire+0x3e/0x3e [ipv6] __run_timers+0x111/0x14b ? mld_dad_timer_expire+0x3e/0x3e [ipv6] run_timer_softirq+0x1c/0x36 __do_softirq+0x185/0x37c ? test_ti_thread_flag.constprop.19+0xd/0xd do_softirq_own_stack+0x22/0x28 </SOFTIRQ> irq_exit+0x5a/0xa4 smp_apic_timer_interrupt+0x2a/0x34 apic_timer_interrupt+0x37/0x3c By using DEFINE/DECLARE_PER_CPU_ALIGNED we can enforce at least 8 byte alignment as all cache line sizes are at least 8 bytes or more. Fixes: a9e419dc7be6 ("netfilter: merge ctinfo into nfct pointer storage area") Signed-off-by: Steven Rostedt (VMware) <rostedt@goodmis.org> Acked-by: Florian Westphal <fw@strlen.de> Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
2017-03-13netfilter: nf_tables: fix mismatch in big-endian systemLiping Zhang
Currently, there are two different methods to store an u16 integer to the u32 data register. For example: u32 *dest = &regs->data[priv->dreg]; 1. *dest = 0; *(u16 *) dest = val_u16; 2. *dest = val_u16; For method 1, the u16 value will be stored like this, either in big-endian or little-endian system: 0 15 31 +-+-+-+-+-+-+-+-+-+-+-+-+ | Value | 0 | +-+-+-+-+-+-+-+-+-+-+-+-+ For method 2, in little-endian system, the u16 value will be the same as listed above. But in big-endian system, the u16 value will be stored like this: 0 15 31 +-+-+-+-+-+-+-+-+-+-+-+-+ | 0 | Value | +-+-+-+-+-+-+-+-+-+-+-+-+ So later we use "memcmp(&regs->data[priv->sreg], data, 2);" to do compare in nft_cmp, nft_lookup expr ..., method 2 will get the wrong result in big-endian system, as 0~15 bits will always be zero. For the similar reason, when loading an u16 value from the u32 data register, we should use "*(u16 *) sreg;" instead of "(u16)*sreg;", the 2nd method will get the wrong value in the big-endian system. So introduce some wrapper functions to store/load an u8 or u16 integer to/from the u32 data register, and use them in the right place. Signed-off-by: Liping Zhang <zlpnobody@gmail.com> Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
2017-03-12net: dsa: add dsa_is_normal_port helperVivien Didelot
Introduce a dsa_is_normal_port helper to check if a given port is a normal user port as opposed to a CPU port or DSA link. Signed-off-by: Vivien Didelot <vivien.didelot@savoirfairelinux.com> Reviewed-by: Andrew Lunn <andrew@lunn.ch> Signed-off-by: David S. Miller <davem@davemloft.net>
2017-03-12sctp: implement receiver-side procedures for the Reconf Response ParameterXin Long
This patch is to implement Receiver-Side Procedures for the Re-configuration Response Parameter in rfc6525 section 5.2.7. sctp_process_strreset_resp would process the response for any kind of reconf request, and the stream reconf is applied only when the response result is success. Signed-off-by: Xin Long <lucien.xin@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2017-03-12sctp: implement receiver-side procedures for the Add Incoming Streams ↵Xin Long
Request Parameter This patch is to implement Receiver-Side Procedures for the Add Incoming Streams Request Parameter described in rfc6525 section 5.2.6. It is also to fix that it shouldn't have add streams when sending addstrm in request, as the process in peer will handle it by sending a addstrm out request back. Signed-off-by: Xin Long <lucien.xin@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2017-03-12sctp: implement receiver-side procedures for the Add Outgoing Streams ↵Xin Long
Request Parameter This patch is to add Receiver-Side Procedures for the Add Outgoing Streams Request Parameter described in section 5.2.5. It is also to improve sctp_chunk_lookup_strreset_param, so that it can be used for processing addstrm_out request. Signed-off-by: Xin Long <lucien.xin@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2017-03-12sctp: add support for generating add stream change event notificationXin Long
This patch is to add Stream Change Event described in rfc6525 section 6.1.3. Signed-off-by: Xin Long <lucien.xin@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2017-03-12sctp: implement receiver-side procedures for the SSN/TSN Reset Request ParameterXin Long
This patch is to implement Receiver-Side Procedures for the SSN/TSN Reset Request Parameter described in rfc6525 section 6.2.4. The process is kind of complicate, it's wonth having some comments from section 6.2.4 in the codes. Signed-off-by: Xin Long <lucien.xin@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2017-03-12sctp: add support for generating assoc reset event notificationXin Long
This patch is to add Association Reset Event described in rfc6525 section 6.1.2. Signed-off-by: Xin Long <lucien.xin@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2017-03-12net: sched: make default fifo qdiscs appear in the dumpJiri Kosina
The original reason [1] for having hidden qdiscs (potential scalability issues in qdisc_match_from_root() with single linked list in case of large amount of qdiscs) has been invalidated by 59cc1f61f0 ("net: sched: convert qdisc linked list to hashtable"). This allows us for bringing more clarity and determinism into the dump by making default pfifo qdiscs visible. We're not turning this on by default though, at it was deemed [2] too intrusive / unnecessary change of default behavior towards userspace. Instead, TCA_DUMP_INVISIBLE netlink attribute is introduced, which allows applications to request complete qdisc hierarchy dump, including the ones that have always been implicit/invisible. Singleton noop_qdisc stays invisible, as teaching the whole infrastructure about singletons would require quite some surgery with very little gain (seeing no qdisc or seeing noop qdisc in the dump is probably setting the same user expectation). [1] http://lkml.kernel.org/r/1460732328.10638.74.camel@edumazet-glaptop3.roam.corp.google.com [2] http://lkml.kernel.org/r/20161021.105935.1907696543877061916.davem@davemloft.net Signed-off-by: Jiri Kosina <jkosina@suse.cz> Signed-off-by: David S. Miller <davem@davemloft.net>
2017-03-10ipv4: fib: Remove redundant argumentIdo Schimmel
We always pass the same event type to fib_notify() and fib_rules_notify(), so we can safely drop this argument. Signed-off-by: Ido Schimmel <idosch@mellanox.com> Signed-off-by: Jiri Pirko <jiri@mellanox.com> Acked-by: David Ahern <dsa@cumulusnetworks.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2017-03-10ipv4: fib: Move FIB notification code to a separate fileIdo Schimmel
Most of the code concerned with the FIB notification chain currently resides in fib_trie.c, but this isn't really appropriate, as the FIB notification chain is also used for FIB rules. Therefore, it makes sense to move the common FIB notification code to a separate file and have it export the relevant functions, which can be invoked by its different users (e.g., fib_trie.c, fib_rules.c). Signed-off-by: Ido Schimmel <idosch@mellanox.com> Signed-off-by: Jiri Pirko <jiri@mellanox.com> Acked-by: David Ahern <dsa@cumulusnetworks.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2017-03-09mlxsw: spectrum: Add support for vlan modify TC actionPetr Machata
Add VLAN action offloading. Invoke it from Spectrum flower handler for "vlan modify" actions. Signed-off-by: Petr Machata <petrm@mellanox.com> Reviewed-by: Ido Schimmel <idosch@mellanox.com> Signed-off-by: Jiri Pirko <jiri@mellanox.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2017-03-09tcp: rename *_sequence_number() to *_seq_and_tsoff()Alexey Kodanev
The functions that are returning tcp sequence number also setup TS offset value, so rename them to better describe their purpose. No functional changes in this patch. Suggested-by: Eric Dumazet <edumazet@google.com> Signed-off-by: Alexey Kodanev <alexey.kodanev@oracle.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2017-03-09net: Work around lockdep limitation in sockets that use socketsDavid Howells
Lockdep issues a circular dependency warning when AFS issues an operation through AF_RXRPC from a context in which the VFS/VM holds the mmap_sem. The theory lockdep comes up with is as follows: (1) If the pagefault handler decides it needs to read pages from AFS, it calls AFS with mmap_sem held and AFS begins an AF_RXRPC call, but creating a call requires the socket lock: mmap_sem must be taken before sk_lock-AF_RXRPC (2) afs_open_socket() opens an AF_RXRPC socket and binds it. rxrpc_bind() binds the underlying UDP socket whilst holding its socket lock. inet_bind() takes its own socket lock: sk_lock-AF_RXRPC must be taken before sk_lock-AF_INET (3) Reading from a TCP socket into a userspace buffer might cause a fault and thus cause the kernel to take the mmap_sem, but the TCP socket is locked whilst doing this: sk_lock-AF_INET must be taken before mmap_sem However, lockdep's theory is wrong in this instance because it deals only with lock classes and not individual locks. The AF_INET lock in (2) isn't really equivalent to the AF_INET lock in (3) as the former deals with a socket entirely internal to the kernel that never sees userspace. This is a limitation in the design of lockdep. Fix the general case by: (1) Double up all the locking keys used in sockets so that one set are used if the socket is created by userspace and the other set is used if the socket is created by the kernel. (2) Store the kern parameter passed to sk_alloc() in a variable in the sock struct (sk_kern_sock). This informs sock_lock_init(), sock_init_data() and sk_clone_lock() as to the lock keys to be used. Note that the child created by sk_clone_lock() inherits the parent's kern setting. (3) Add a 'kern' parameter to ->accept() that is analogous to the one passed in to ->create() that distinguishes whether kernel_accept() or sys_accept4() was the caller and can be passed to sk_alloc(). Note that a lot of accept functions merely dequeue an already allocated socket. I haven't touched these as the new socket already exists before we get the parameter. Note also that there are a couple of places where I've made the accepted socket unconditionally kernel-based: irda_accept() rds_rcp_accept_one() tcp_accept_from_sock() because they follow a sock_create_kern() and accept off of that. Whilst creating this, I noticed that lustre and ocfs don't create sockets through sock_create_kern() and thus they aren't marked as for-kernel, though they appear to be internal. I wonder if these should do that so that they use the new set of lock keys. Signed-off-by: David Howells <dhowells@redhat.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2017-03-09scripts/spelling.txt: add "overide" pattern and fix typo instancesMasahiro Yamada
Fix typos and add the following to the scripts/spelling.txt: overide||override While we are here, fix the doubled "address" in the touched line Documentation/devicetree/bindings/regulator/ti-abb-regulator.txt. Also, fix the comment block style in the touched hunks in drivers/media/dvb-frontends/drx39xyj/drx_driver.h. Link: http://lkml.kernel.org/r/1481573103-11329-21-git-send-email-yamada.masahiro@socionext.com Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2017-03-08net: use proper lockdep annotation in __sk_dst_set()Eric Dumazet
__sk_dst_set() must be called while we own the socket. We can get proper lockdep coverage using lockdep_sock_is_held() and rcu_dereference_protected() Signed-off-by: Eric Dumazet <edumazet@google.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2017-03-08netfilter: nf_tables: set pktinfo->thoff at AH header if foundPablo Neira Ayuso
Phil Sutter reports that IPv6 AH header matching is broken. From userspace, nft generates bytecode that expects to find the AH header at NFT_PAYLOAD_TRANSPORT_HEADER both for IPv4 and IPv6. However, pktinfo->thoff is set to the inner header after the AH header in IPv6, while in IPv4 pktinfo->thoff points to the AH header indeed. This behaviour is inconsistent. This patch fixes this problem by updating ipv6_find_hdr() to get the IP6_FH_F_AUTH flag so this function stops at the AH header, so both IPv4 and IPv6 pktinfo->thoff point to the AH header. This is also inconsistent when trying to match encapsulated headers: 1) A packet that looks like IPv4 + AH + TCP dport 22 will *not* match. 2) A packet that looks like IPv6 + AH + TCP dport 22 will match. Reported-by: Phil Sutter <phil@nwl.cc> Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
2017-03-07mac80211: remove ieee80211_tx_rate_control.max_rate_idxJohannes Berg
As promised a little more than 7 years ago, remove it now since nothing uses it anymore. Signed-off-by: Johannes Berg <johannes.berg@intel.com>
2017-03-06netfilter: nf_tables: add nft_set_lookup()Pablo Neira Ayuso
This new function consolidates set lookup via either name or ID by introducing a new nft_set_lookup() function. Replace existing spots where we can use this too. Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
2017-03-06mac80211: Add set_cqm_rssi_range_configAndrew Zaborowski
Support .set_cqm_rssi_range_config if the beacons are available for processing in mac80211. There's no reason that this couldn't be offloaded by mac80211-based drivers but there's no driver method for that added in this patch. Signed-off-by: Andrew Zaborowski <andrew.zaborowski@intel.com> Signed-off-by: Johannes Berg <johannes.berg@intel.com>
2017-03-06cfg80211: Accept multiple RSSI thresholds for CQMAndrew Zaborowski
Change the SET CQM command's RSSI threshold attribute to accept any number of thresholds as a sorted array. The API should be backwards compatible so that if one s32 threshold value is passed, the old mechanism is enabled. The netlink event generated is the same in both cases. cfg80211 handles an arbitrary number of RSSI thresholds but drivers have to provide a method (set_cqm_rssi_range_config) that configures a range set by a high and a low value. Drivers have to call back when the RSSI goes out of that range and there's no additional event for each time the range is reconfigured as there was with the current one-threshold API. This method doesn't have a hysteresis parameter because there's no benefit to the cfg80211 code from having the hysteresis be handled by hardware/driver in terms of the number of wakeups. At the same time it would likely be less consistent between drivers if offloaded or done in the drivers. Signed-off-by: Andrew Zaborowski <andrew.zaborowski@intel.com> Signed-off-by: Johannes Berg <johannes.berg@intel.com>
2017-03-04Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/netLinus Torvalds
Pull networking fixes from David Miller: 1) Fix double-free in batman-adv, from Sven Eckelmann. 2) Fix packet stats for fast-RX path, from Joannes Berg. 3) Netfilter's ip_route_me_harder() doesn't handle request sockets properly, fix from Florian Westphal. 4) Fix sendmsg deadlock in rxrpc, from David Howells. 5) Add missing RCU locking to transport hashtable scan, from Xin Long. 6) Fix potential packet loss in mlxsw driver, from Ido Schimmel. 7) Fix race in NAPI handling between poll handlers and busy polling, from Eric Dumazet. 8) TX path in vxlan and geneve need proper RCU locking, from Jakub Kicinski. 9) SYN processing in DCCP and TCP need to disable BH, from Eric Dumazet. 10) Properly handle net_enable_timestamp() being invoked from IRQ context, also from Eric Dumazet. 11) Fix crash on device-tree systems in xgene driver, from Alban Bedel. 12) Do not call sk_free() on a locked socket, from Arnaldo Carvalho de Melo. 13) Fix use-after-free in netvsc driver, from Dexuan Cui. 14) Fix max MTU setting in bonding driver, from WANG Cong. 15) xen-netback hash table can be allocated from softirq context, so use GFP_ATOMIC. From Anoob Soman. 16) Fix MAC address change bug in bgmac driver, from Hari Vyas. 17) strparser needs to destroy strp_wq on module exit, from WANG Cong. * git://git.kernel.org/pub/scm/linux/kernel/git/davem/net: (69 commits) strparser: destroy workqueue on module exit sfc: fix IPID endianness in TSOv2 sfc: avoid max() in array size rds: remove unnecessary returned value check rxrpc: Fix potential NULL-pointer exception nfp: correct DMA direction in XDP DMA sync nfp: don't tell FW about the reserved buffer space net: ethernet: bgmac: mac address change bug net: ethernet: bgmac: init sequence bug xen-netback: don't vfree() queues under spinlock xen-netback: keep a local pointer for vif in backend_disconnect() netfilter: nf_tables: don't call nfnetlink_set_err() if nfnetlink_send() fails netfilter: nft_set_rbtree: incorrect assumption on lower interval lookups netfilter: nf_conntrack_sip: fix wrong memory initialisation can: flexcan: fix typo in comment can: usb_8dev: Fix memory leak of priv->cmd_msg_buffer can: gs_usb: fix coding style can: gs_usb: Don't use stack memory for USB transfers ixgbe: Limit use of 2K buffers on architectures with 256B or larger cache lines ixgbe: update the rss key on h/w, when ethtool ask for it ...
2017-03-03Merge branch 'work.misc' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs Pull misc final vfs updates from Al Viro: "A few unrelated patches that got beating in -next. Everything else will have to go into the next window ;-/" * 'work.misc' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs: hfs: fix hfs_readdir() selftest for default_file_splice_read() infoleak 9p: constify ->d_name handling
2017-03-03Merge git://git.kernel.org/pub/scm/linux/kernel/git/pablo/nfDavid S. Miller
Pablo Neira Ayuso says: ==================== Netfilter fixes for net The following patchset contains Netfilter fixes for your net tree, they are: 1) Missing check for full sock in ip_route_me_harder(), from Florian Westphal. 2) Incorrect sip helper structure initilization that breaks it when several ports are used, from Christophe Leroy. 3) Fix incorrect assumption when looking up for matching with adjacent intervals in the nft_set_rbtree. 4) Fix broken netlink event error reporting in nf_tables that results in misleading ESRCH errors propagated to userspace listeners. ==================== Signed-off-by: David S. Miller <davem@davemloft.net>
2017-03-03netfilter: nf_tables: don't call nfnetlink_set_err() if nfnetlink_send() failsPablo Neira Ayuso
The underlying nlmsg_multicast() already sets sk->sk_err for us to notify socket overruns, so we should not do anything with this return value. So we just call nfnetlink_set_err() if: 1) We fail to allocate the netlink message. or 2) We don't have enough space in the netlink message to place attributes, which means that we likely need to allocate a larger message. Before this patch, the internal ESRCH netlink error code was propagated to userspace, which is quite misleading. Netlink semantics mandate that listeners just hit ENOBUFS if the socket buffer overruns. Reported-by: Alexander Alemayhu <alexander@alemayhu.com> Tested-by: Alexander Alemayhu <alexander@alemayhu.com> Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
2017-03-02net: Introduce sk_clone_lock() error path routineArnaldo Carvalho de Melo
When handling problems in cloning a socket with the sk_clone_locked() function we need to perform several steps that were open coded in it and its callers, so introduce a routine to avoid this duplication: sk_free_unlock_clone(). Cc: Cong Wang <xiyou.wangcong@gmail.com> Cc: Dmitry Vyukov <dvyukov@google.com> Cc: Eric Dumazet <edumazet@google.com> Cc: Gerrit Renker <gerrit@erg.abdn.ac.uk> Cc: Thomas Gleixner <tglx@linutronix.de> Link: http://lkml.kernel.org/n/net-ui6laqkotycunhtmqryl9bfx@git.kernel.org Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2017-03-02sched/headers: Prepare to use <linux/rcuupdate.h> instead of ↵Ingo Molnar
<linux/rculist.h> in <linux/sched.h> We don't actually need the full rculist.h header in sched.h anymore, we will be able to include the smaller rcupdate.h header instead. But first update code that relied on the implicit header inclusion. Acked-by: Linus Torvalds <torvalds@linux-foundation.org> Cc: Mike Galbraith <efault@gmx.de> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Thomas Gleixner <tglx@linutronix.de> Cc: linux-kernel@vger.kernel.org Signed-off-by: Ingo Molnar <mingo@kernel.org>
2017-03-02sched/headers: Prepare to move signal wakeup & sigpending methods from ↵Ingo Molnar
<linux/sched.h> into <linux/sched/signal.h> Fix up affected files that include this signal functionality via sched.h. Acked-by: Linus Torvalds <torvalds@linux-foundation.org> Cc: Mike Galbraith <efault@gmx.de> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Thomas Gleixner <tglx@linutronix.de> Cc: linux-kernel@vger.kernel.org Signed-off-by: Ingo Molnar <mingo@kernel.org>
2017-03-02sched/headers: Prepare to remove <linux/cred.h> inclusion from <linux/sched.h>Ingo Molnar
Add #include <linux/cred.h> dependencies to all .c files rely on sched.h doing that for them. Note that even if the count where we need to add extra headers seems high, it's still a net win, because <linux/sched.h> is included in over 2,200 files ... Acked-by: Linus Torvalds <torvalds@linux-foundation.org> Cc: Mike Galbraith <efault@gmx.de> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Thomas Gleixner <tglx@linutronix.de> Cc: linux-kernel@vger.kernel.org Signed-off-by: Ingo Molnar <mingo@kernel.org>
2017-03-02sched/headers: Prepare for new header dependencies before moving code to ↵Ingo Molnar
<linux/sched/clock.h> We are going to split <linux/sched/clock.h> out of <linux/sched.h>, which will have to be picked up from other headers and .c files. Create a trivial placeholder <linux/sched/clock.h> file that just maps to <linux/sched.h> to make this patch obviously correct and bisectable. Include the new header in the files that are going to need it. Acked-by: Linus Torvalds <torvalds@linux-foundation.org> Cc: Mike Galbraith <efault@gmx.de> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Thomas Gleixner <tglx@linutronix.de> Cc: linux-kernel@vger.kernel.org Signed-off-by: Ingo Molnar <mingo@kernel.org>
2017-02-27scripts/spelling.txt: add "disassocation" pattern and fix typo instancesMasahiro Yamada
Fix typos and add the following to the scripts/spelling.txt: disassocation||disassociation Link: http://lkml.kernel.org/r/1481573103-11329-27-git-send-email-yamada.masahiro@socionext.com Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2017-02-27scripts/spelling.txt: add "an user" pattern and fix typo instancesMasahiro Yamada
Fix typos and add the following to the scripts/spelling.txt: an user||a user an userspace||a userspace I also added "userspace" to the list since it is a common word in Linux. I found some instances for "an userfaultfd", but I did not add it to the list. I felt it is endless to find words that start with "user" such as "userland" etc., so must draw a line somewhere. Link: http://lkml.kernel.org/r/1481573103-11329-4-git-send-email-yamada.masahiro@socionext.com Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2017-02-22Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-nextLinus Torvalds
Pull networking updates from David Miller: "Highlights: 1) Support TX_RING in AF_PACKET TPACKET_V3 mode, from Sowmini Varadhan. 2) Simplify classifier state on sk_buff in order to shrink it a bit. From Willem de Bruijn. 3) Introduce SIPHASH and it's usage for secure sequence numbers and syncookies. From Jason A. Donenfeld. 4) Reduce CPU usage for ICMP replies we are going to limit or suppress, from Jesper Dangaard Brouer. 5) Introduce Shared Memory Communications socket layer, from Ursula Braun. 6) Add RACK loss detection and allow it to actually trigger fast recovery instead of just assisting after other algorithms have triggered it. From Yuchung Cheng. 7) Add xmit_more and BQL support to mvneta driver, from Simon Guinot. 8) skb_cow_data avoidance in esp4 and esp6, from Steffen Klassert. 9) Export MPLS packet stats via netlink, from Robert Shearman. 10) Significantly improve inet port bind conflict handling, especially when an application is restarted and changes it's setting of reuseport. From Josef Bacik. 11) Implement TX batching in vhost_net, from Jason Wang. 12) Extend the dummy device so that VF (virtual function) features, such as configuration, can be more easily tested. From Phil Sutter. 13) Avoid two atomic ops per page on x86 in bnx2x driver, from Eric Dumazet. 14) Add new bpf MAP, implementing a longest prefix match trie. From Daniel Mack. 15) Packet sample offloading support in mlxsw driver, from Yotam Gigi. 16) Add new aquantia driver, from David VomLehn. 17) Add bpf tracepoints, from Daniel Borkmann. 18) Add support for port mirroring to b53 and bcm_sf2 drivers, from Florian Fainelli. 19) Remove custom busy polling in many drivers, it is done in the core networking since 4.5 times. From Eric Dumazet. 20) Support XDP adjust_head in virtio_net, from John Fastabend. 21) Fix several major holes in neighbour entry confirmation, from Julian Anastasov. 22) Add XDP support to bnxt_en driver, from Michael Chan. 23) VXLAN offloads for enic driver, from Govindarajulu Varadarajan. 24) Add IPVTAP driver (IP-VLAN based tap driver) from Sainath Grandhi. 25) Support GRO in IPSEC protocols, from Steffen Klassert" * git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-next: (1764 commits) Revert "ath10k: Search SMBIOS for OEM board file extension" net: socket: fix recvmmsg not returning error from sock_error bnxt_en: use eth_hw_addr_random() bpf: fix unlocking of jited image when module ronx not set arch: add ARCH_HAS_SET_MEMORY config net: napi_watchdog() can use napi_schedule_irqoff() tcp: Revert "tcp: tcp_probe: use spin_lock_bh()" net/hsr: use eth_hw_addr_random() net: mvpp2: enable building on 64-bit platforms net: mvpp2: switch to build_skb() in the RX path net: mvpp2: simplify MVPP2_PRS_RI_* definitions net: mvpp2: fix indentation of MVPP2_EXT_GLOBAL_CTRL_DEFAULT net: mvpp2: remove unused register definitions net: mvpp2: simplify mvpp2_bm_bufs_add() net: mvpp2: drop useless fields in mvpp2_bm_pool and related code net: mvpp2: remove unused 'tx_skb' field of 'struct mvpp2_tx_queue' net: mvpp2: release reference to txq_cpu[] entry after unmapping net: mvpp2: handle too large value in mvpp2_rx_time_coal_set() net: mvpp2: handle too large value handling in mvpp2_rx_pkts_coal_set() net: mvpp2: remove useless arguments in mvpp2_rx_{pkts, time}_coal_set ...
2017-02-20Merge branch 'locking-core-for-linus' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip Pull locking updates from Ingo Molnar: "The main changes in this cycle were: - Implement wraparound-safe refcount_t and kref_t types based on generic atomic primitives (Peter Zijlstra) - Improve and fix the ww_mutex code (Nicolai Hähnle) - Add self-tests to the ww_mutex code (Chris Wilson) - Optimize percpu-rwsems with the 'rcuwait' mechanism (Davidlohr Bueso) - Micro-optimize the current-task logic all around the core kernel (Davidlohr Bueso) - Tidy up after recent optimizations: remove stale code and APIs, clean up the code (Waiman Long) - ... plus misc fixes, updates and cleanups" * 'locking-core-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: (50 commits) fork: Fix task_struct alignment locking/spinlock/debug: Remove spinlock lockup detection code lockdep: Fix incorrect condition to print bug msgs for MAX_LOCKDEP_CHAIN_HLOCKS lkdtm: Convert to refcount_t testing kref: Implement 'struct kref' using refcount_t refcount_t: Introduce a special purpose refcount type sched/wake_q: Clarify queue reinit comment sched/wait, rcuwait: Fix typo in comment locking/mutex: Fix lockdep_assert_held() fail locking/rtmutex: Flip unlikely() branch to likely() in __rt_mutex_slowlock() locking/rwsem: Reinit wake_q after use locking/rwsem: Remove unnecessary atomic_long_t casts jump_labels: Move header guard #endif down where it belongs locking/atomic, kref: Implement kref_put_lock() locking/ww_mutex: Turn off __must_check for now locking/atomic, kref: Avoid more abuse locking/atomic, kref: Use kref_get_unless_zero() more locking/atomic, kref: Kill kref_sub() locking/atomic, kref: Add kref_read() locking/atomic, kref: Add KREF_INIT() ...
2017-02-20sctp: add support for MSG_MOREXin Long
This patch is to add support for MSG_MORE on sctp. It adds force_delay in sctp_datamsg to save MSG_MORE, and sets it after creating datamsg according to the send flag. sctp_packet_can_append_data then uses it to decide if the chunks of this msg will be sent at once or delay it. Note that unlike [1], this patch saves MSG_MORE in datamsg, instead of in assoc. As sctp enqueues the chunks first, then dequeue them one by one. If it's saved in assoc,the current msg's send flag (MSG_MORE) may affect other chunks' bundling. Since last patch, sctp flush out queue once assoc state falls into SHUTDOWN_PENDING, the close block problem mentioned in [1] has been solved as well. [1] https://patchwork.ozlabs.org/patch/372404/ Signed-off-by: Xin Long <lucien.xin@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2017-02-19sctp: sctp_transport_dst_check should check if transport pmtu is dst mtuXin Long
Now when sending a packet, sctp_transport_dst_check will check if dst is obsolete by calling ipv4/ip6_dst_check. But they return obsolete only when adding a new cache, after that when the cache's pmtu is updated again, it will not trigger transport->dst/pmtu's update. It can be reproduced by reducing route's pmtu twice. At the 1st time client will add a new cache, and transport->pathmtu gets updated as sctp_transport_dst_check finds it's obsolete. But at the 2nd time, cache's mtu is updated, sctp client will never send out any packet, because transport->pmtu has no chance to update. This patch is to fix this by also checking if transport pmtu is dst mtu in sctp_transport_dst_check, so that transport->pmtu can be updated on time. Signed-off-by: Xin Long <lucien.xin@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2017-02-19sctp: add reconf chunk eventXin Long
This patch is to add reconf chunk event based on the sctp event frame in rx path, it will call sctp_sf_do_reconf to process the reconf chunk. Signed-off-by: Xin Long <lucien.xin@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2017-02-19sctp: add reconf chunk processXin Long
This patch is to add a function to process the incoming reconf chunk, in which it verifies the chunk, and traverses the param and process it with the right function one by one. sctp_sf_do_reconf would be the process function of reconf chunk event. Signed-off-by: Xin Long <lucien.xin@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2017-02-19sctp: add a function to verify the sctp reconf chunkXin Long
This patch is to add a function sctp_verify_reconf to do some length check and multi-params check for sctp stream reconf according to rfc6525 section 3.1. Signed-off-by: Xin Long <lucien.xin@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2017-02-19sctp: implement receiver-side procedures for the Incoming SSN Reset Request ↵Xin Long
Parameter This patch is to implement Receiver-Side Procedures for the Incoming SSN Reset Request Parameter described in rfc6525 section 5.2.3. It's also to move str_list endian conversion out of sctp_make_strreset_req, so that sctp_make_strreset_req can be used more conveniently to process inreq. Signed-off-by: Xin Long <lucien.xin@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2017-02-19sctp: implement receiver-side procedures for the Outgoing SSN Reset Request ↵Xin Long
Parameter This patch is to implement Receiver-Side Procedures for the Outgoing SSN Reset Request Parameter described in rfc6525 section 5.2.2. Note that some checks must be after request_seq check, as even those checks fail, strreset_inseq still has to be increase by 1. Signed-off-by: Xin Long <lucien.xin@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2017-02-19sctp: add support for generating stream ssn reset event notificationXin Long
This patch is to add Stream Reset Event described in rfc6525 section 6.1.1. Signed-off-by: Xin Long <lucien.xin@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2017-02-19sctp: add support for generating stream reconf resp chunkXin Long
This patch is to define Re-configuration Response Parameter described in rfc6525 section 4.4. As optional fields are only for SSN/TSN Reset Request Parameter, it uses another function to make that. Signed-off-by: Xin Long <lucien.xin@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2017-02-17net/sched: Reflect HW offload statusOr Gerlitz
Currently there is no way of querying whether a filter is offloaded to HW or not when using "both" policy (where none of skip_sw or skip_hw flags are set by user-space). Add two new flags, "in hw" and "not in hw" such that user space can determine if a filter is actually offloaded to hw or not. The "in hw" UAPI semantics was chosen so it's similar to the "skip hw" flag logic. If none of these two flags are set, this signals running over older kernel. Signed-off-by: Or Gerlitz <ogerlitz@mellanox.com> Reviewed-by: Amir Vadai <amir@vadai.me> Acked-by: Jiri Pirko <jiri@mellanox.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2017-02-16Merge branch 'master' of ↵David S. Miller
git://git.kernel.org/pub/scm/linux/kernel/git/klassert/ipsec-next Steffen Klassert says: ==================== pull request (net-next): ipsec-next 2017-02-16 1) Make struct xfrm_input_afinfo const, nothing writes to it. From Florian Westphal. 2) Remove all places that write to the afinfo policy backend and make the struct const then. From Florian Westphal. 3) Prepare for packet consuming gro callbacks and add ESP GRO handlers. ESP packets can be decapsulated at the GRO layer then. It saves a round through the stack for each ESP packet. Please note that this has a merge coflict between commit 63fca65d0863 ("net: add confirm_neigh method to dst_ops") from net-next and 3d7d25a68ea5 ("xfrm: policy: remove garbage_collect callback") a2817d8b279b ("xfrm: policy: remove family field") from ipsec-next. The conflict can be solved as it is done in linux-next. Please pull or let me know if there are problems. ==================== Signed-off-by: David S. Miller <davem@davemloft.net>
2017-02-15sched: have stub for tcf_destroy_chain in case NET_CLS is not configuredJiri Pirko
This fixes broken build for !NET_CLS: net/built-in.o: In function `fq_codel_destroy': /home/sab/linux/net-next/net/sched/sch_fq_codel.c:468: undefined reference to `tcf_destroy_chain' Fixes: cf1facda2f61 ("sched: move tcf_proto_destroy and tcf_destroy_chain helpers into cls_api") Reported-by: Sabrina Dubroca <sd@queasysnail.net> Signed-off-by: Jiri Pirko <jiri@mellanox.com> Tested-by: Sabrina Dubroca <sd@queasysnail.net> Signed-off-by: David S. Miller <davem@davemloft.net>