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* | wlan: Create generic wlan platform data headerDmitry Shmidt2016-02-16
| | | | | | | | | | Change-Id: I233559218cc40acb28b57315ea25c08a9c866725 Signed-off-by: Dmitry Shmidt <dimitrysh@google.com>
* | net: ipv6: autoconf routes into per-device tablesLorenzo Colitti2016-02-16
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Currently, IPv6 router discovery always puts routes into RT6_TABLE_MAIN. This causes problems for connection managers that want to support multiple simultaneous network connections and want control over which one is used by default (e.g., wifi and wired). To work around this connection managers typically take the routes they prefer and copy them to static routes with low metrics in the main table. This puts the burden on the connection manager to watch netlink to see if the routes have changed, delete the routes when their lifetime expires, etc. Instead, this patch adds a per-interface sysctl to have the kernel put autoconf routes into different tables. This allows each interface to have its own autoconf table, and choosing the default interface (or using different interfaces at the same time for different types of traffic) can be done using appropriate ip rules. The sysctl behaves as follows: - = 0: default. Put routes into RT6_TABLE_MAIN as before. - > 0: manual. Put routes into the specified table. - < 0: automatic. Add the absolute value of the sysctl to the device's ifindex, and use that table. The automatic mode is most useful in conjunction with net.ipv6.conf.default.accept_ra_rt_table. A connection manager or distribution could set it to, say, -100 on boot, and thereafter just use IP rules. Change-Id: I82d16e3737d9cdfa6489e649e247894d0d60cbb1 Signed-off-by: Lorenzo Colitti <lorenzo@google.com>
* | netfilter: adding the original quota2 from xtables-addonsJP Abgrall2016-02-16
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | The original xt_quota in the kernel is plain broken: - counts quota at a per CPU level (was written back when ubiquitous SMP was just a dream) - provides no way to count across IPV4/IPV6. This patch is the original unaltered code from: http://sourceforge.net/projects/xtables-addons at commit e84391ce665cef046967f796dd91026851d6bbf3 Change-Id: I19d49858840effee9ecf6cff03c23b45a97efdeb Signed-off-by: JP Abgrall <jpa@google.com>
* | netfilter: add xt_qtaguid matching moduleJP Abgrall2016-02-16
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | This module allows tracking stats at the socket level for given UIDs. It replaces xt_owner. If the --uid-owner is not specified, it will just count stats based on who the skb belongs to. This will even happen on incoming skbs as it looks into the skb via xt_socket magic to see who owns it. If an skb is lost, it will be assigned to uid=0. To control what sockets of what UIDs are tagged by what, one uses: echo t $sock_fd $accounting_tag $the_billed_uid \ > /proc/net/xt_qtaguid/ctrl So whenever an skb belongs to a sock_fd, it will be accounted against $the_billed_uid and matching stats will show up under the uid with the given $accounting_tag. Because the number of allocations for the stats structs is not that big: ~500 apps * 32 per app we'll just do it atomic. This avoids walking lists many times, and the fancy worker thread handling. Slabs will grow when needed later. It use netdevice and inetaddr notifications instead of hooks in the core dev code to track when a device comes and goes. This removes the need for exposed iface_stat.h. Put procfs dirs in /proc/net/xt_qtaguid/ ctrl stats iface_stat/<iface>/... The uid stats are obtainable in ./stats. Change-Id: I01af4fd91c8de651668d3decb76d9bdc1e343919 Signed-off-by: JP Abgrall <jpa@google.com>
* | Hack: net: PPPoPNS and PPPoLAC build fixes for 4.1Amit Pundir2016-02-16
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Upstream commit c0371da6047a "put iov_iter into msghdr", added iov_iter and removed direct access to scatter/gather array elements in msghdr. It broke PPPoLAC and PPPoPNS. Lets restore the direct access to scatter/gather array in msghdr for the time being. Otherwise we run into following build failure: ---------- drivers/net/ppp/pppolac.c: In function ‘pppolac_xmit_core’: drivers/net/ppp/pppolac.c:210:4: error: unknown field ‘msg_iov’ specified in initializer .msg_iov = (struct iovec *)&iov, ^ drivers/net/ppp/pppolac.c:211:4: error: unknown field ‘msg_iovlen’ specified in initializer .msg_iovlen = 1, ^ make[3]: *** [drivers/net/ppp/pppolac.o] Error 1 ---------- Change-Id: I2a1245a156da6d93b49f5cfd10506381b0eff005 Signed-off-by: Amit Pundir <amit.pundir@linaro.org> Signed-off-by: Dmitry Shmidt <dimitrysh@google.com>
* | net: PPPoPNS: Remove length argument from data_readyJon Medhurst2016-02-16
| | | | | | | | | | | | | | | | | | | | | | | | The argument was removed by commit 676d23690fb6 ("net: Fix use after free by removing length arg from sk_data_ready callbacks") and it's presence causes warnings like: drivers/net/ppp/pppopns.c:296:27: warning: assignment from incompatible pointer type po->proto.pns.data_ready = sk_raw->sk_data_ready; Signed-off-by: Jon Medhurst <tixy@linaro.org> Signed-off-by: Amit Pundir <amit.pundir@linaro.org>
* | net: move PPPoLAC and PPPoPNS headers to uapiColin Cross2016-02-16
| | | | | | | | | | | | | | | | | | Move the entire contents of the linux/if_pppolac.h and linux/if_pppopns.h headers to uapi, they only contain userspace interfaces. Change-Id: I3cfed7f2ae400b53269a1f59144aa3dbc30ae0b5 Signed-off-by: Colin Cross <ccross@android.com>
* | Include if_pppolac.h and if_pppopns.h into header-y targetAndrey Konovalov2016-02-16
| | | | | | | | | | | | | | This is required to pass the headers_check Change-Id: Ic4c773973278cbdf1cb4eb66473826cb96ccbfb3 Signed-off-by: Andrey Konovalov <andrey.konovalov@linaro.org>
* | net: Reorder incoming packets in PPPoLAC and PPPoPNS.Chia-chi Yeh2016-02-16
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | PPP handles packet loss but does not work with out of order packets. This change performs reordering of incoming data packets within a sliding window of one second. Since sequence number is optional, receiving a packet without it will drop all queued packets. Currently the logic is triggered by incoming packets, so queued packets have to wait till another packet is arrived. It is done for simplicity since no additional locks or threads are required. For reliable protocols, a retransmission will kick it. For unreliable protocols, queued packets just seem like packet loss. Time-critical protocols might be broken, but they never work with queueing anyway. Signed-off-by: Chia-chi Yeh <chiachi@android.com>
* | net: PPPoPNS and PPPoLAC fixes.Chia-chi Yeh2016-02-16
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | net: Fix a bitmask in PPPoPNS and rename constants in PPPoPNS and PPPoLAC. Signed-off-by: Chia-chi Yeh <chiachi@android.com> net: Fix a potential deadlock while releasing PPPoLAC/PPPoPNS socket. PPP driver guarantees that no thread will be executing start_xmit() after returning from ppp_unregister_channel(). To achieve this, a spinlock (downl) is used. In pppolac_release(), ppp_unregister_channel() is called after sk_udp is locked. At the same time, another thread might be running in pppolac_xmit() with downl. Thus a deadlock will occur if the thread tries to lock sk_udp. The same situation might happen on sk_raw in pppopns_release(). Signed-off-by: Chia-chi Yeh <chiachi@android.com> net: Force PPPoLAC and PPPoPNS to bind an interface before creating PPP channel. It is common to manipulate the routing table after configuring PPP device. Since both PPPoLAC and PPPoPNS run over IP, care must be taken to make sure that there is no loop in the routing table. Although this can be done by adding a host route, it might still cause problems when the interface is down for some reason. To solve this, this patch forces both drivers to bind an interface before creating PPP channel, so the system will not re-route the tunneling sockets to another interface when the original one is down. Another benefit is that now the host route is no longer required, so there is no need to remove it when PPP channel is closed. Signed-off-by: Chia-chi Yeh <chiachi@android.com> net: Avoid sleep-inside-spinlock in PPPoLAC and PPPoPNS. Since recv() and xmit() are called with a spinlock held, routines which might sleep cannot be used. This issue is solved by following changes: Incoming packets are now processed in backlog handler, recv_core(), instead of recv(). Since backlog handler is always executed with socket spinlock held, the requirement of ppp_input() is still satisfied. Outgoing packets are now processed in workqueue handler, xmit_core(), instead of xmit(). Note that kernel_sendmsg() is no longer used to prevent touching dead sockets. In release(), lock_sock() and pppox_unbind_sock() ensure that no thread is in recv_core() or xmit(). Then socket handlers are restored before release_sock(), so no packets will leak in backlog queue. Signed-off-by: Chia-chi Yeh <chiachi@android.com> net: Fix msg_iovlen in PPPoLAC and PPPoPNS. Although any positive value should work (which is always true in both drivers), the correct value should be 1. Signed-off-by: Chia-chi Yeh <chiachi@android.com>
* | net: add PPP on PPTP Network Server (PPPoPNS) driver.Chia-chi Yeh2016-02-16
| | | | | | | | | | | | | | | | | | Signed-off-by: Chia-chi Yeh <chiachi@android.com> ppopns: dont include px_proto define in if_pppopns.h Change-Id: I27e687667db5b45182562f4a517a2e6cec6b1350 Signed-off-by: Dima Zavin <dima@android.com>
* | net: add PPP on L2TP Access Concentrator (PPPoLAC) driver.Chia-chi Yeh2016-02-16
| | | | | | | | | | | | | | | | | | | | Change-Id: I3ae3ee7520951ae24269db0ef2898c6455cf6bcc Signed-off-by: Chia-chi Yeh <chiachi@android.com> ppolac: dont include px_proto define in if_pppolac.h Change-Id: I55bc9cf91ea0e9e8f7bf5d6e241d188e1269343a Signed-off-by: Dima Zavin <dima@android.com>
* | misc: uidstat: Adding uid stat driver to collect network statistics.Mike Chan2016-02-16
| | | | | | | | Signed-off-by: Mike Chan <mike@android.com>
* | security: Add AID_NET_RAW and AID_NET_ADMIN capability check in cap_capable().Chia-chi Yeh2016-02-16
| | | | | | | | Signed-off-by: Chia-chi Yeh <chiachi@android.com>
* | Add android_aid.hRobert Love2016-02-16
| | | | | | | | | | | | | | Add <linux/android_aid.h>, our mapping of AID defines to gid numbers. Change-Id: I3a02eb2b5c7e336e3de0cb45d8e04ec82f7281b4 Signed-off-by: Robert Love <rlove@google.com>
* | mmc: Add "ignore mmc pm notify" functionalityDmitry Shmidt2016-02-16
| | | | | | | | Signed-off-by: Dmitry Shmidt <dimitrysh@google.com>
* | mmc: Add sdio_readb_ext() functionDmitry Shmidt2016-02-16
| | | | | | | | Change-Id: I9b410c8a13724795b23764012fd3be8f53747299
* | mmc: Add concept of an 'embedded' SDIO device.San Mehat2016-02-16
| | | | | | | | | | | | | | | | | | | | | | | | This is required to support chips which use SDIO for signaling/ communication but do not implement the various card enumeration registers as required for full SD / SDIO cards. mmc: sdio: Fix bug where we're freeing the CIS tables we never allocated when using EMBEDDED_SDIO mmc: Add max_blksize to embedded SDIO data Change-Id: Ibff2e3e991e5522f55ec8c6edc25ed09f2553736 Signed-off-by: San Mehat <san@google.com>
* | mmc: Add status IRQ and status callback function to mmc platform dataSan Mehat2016-02-16
| | | | | | | | Signed-off-by: San Mehat <san@google.com>
* | input: Changed keyreset to act as a wrapper for keycombo.Daniel Rosenberg2016-02-16
| | | | | | | | | | | | | | | | keyreset now registers a keycombo driver that acts as the old keyreset driver acted. Change-Id: I08f5279e3a33b267571b699697f9f54508868983 Signed-off-by: Daniel Rosenberg <drosen@google.com>
* | input: add keycombo, a general key combo driver.Daniel Rosenberg2016-02-16
| | | | | | | | | | | | | | | | | | | | | | Keycombo lets you provide a key up and key down function, and an optional time delay for key down. The driver will call the key down function after the specified key combo has been held for the speicified time delay. After you release the combo, if the key down has happened, it calls key up. Change-Id: I6a9a94e96a8f58fadd908fd1dc7944b9102a089f Signed-off-by: Daniel Rosenberg <drosen@google.com>
* | input: misc: keychord: move header to uapiColin Cross2016-02-16
| | | | | | | | | | | | | | | | Move the entire contents of linux/keychord.h header to uapi, it only contains a userspace interface. Change-Id: If94f83328b19efb58c66391dce3bd8e927788d8d Signed-off-by: Colin Cross <ccross@android.com>
* | input: keychord: Add keychord driverMike Lockwood2016-02-16
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | This driver allows userspace to receive notification when client specified key combinations are pressed. The client opens /dev/keychord and writes a list of keychords for the driver to monitor. The client then reads or polls /dev/keychord for notifications. A client specified ID for the keychord is returned from read() when a keychord press is detected. Signed-off-by: Mike Lockwood <lockwood@android.com> keychord: fix to build without CONFIG_PREEMPT Change-Id: I911f13aeda4224b6fa57863bc7e8972fec8837fb
* | input: Add keyreset driver.Arve Hjønnevåg2016-02-16
| | | | | | | | | | | | | | | | | | | | | | Add a platform device in the board file to specify a reset key-combo. The first time the key-combo is detected a work function that syncs the filesystems is scheduled. If all the keys are released and then pressed again, it calls panic. Reboot on panic should be set for this to work. Change-Id: I9d54283ca1fba45e4b1ae1a407524cdda8171143 Signed-off-by: Arve Hjønnevåg <arve@android.com>
* | Input: Generic GPIO Input device.Arve Hjønnevåg2016-02-16
| | | | | | | | | | | | | | | | Supports keyboard matrixces, direct inputs, direct outputs and axes connected to gpios. Change-Id: I5e921e6e3a1cc169316ee3b665f4cc21b5735114 Signed-off-by: Arve Hjønnevåg <arve@android.com> Signed-off-by: Nick Pelly <npelly@google.com>
* | switch: switch class and GPIO drivers.Mike Lockwood2016-02-16
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | switch: Export symbol switch_set_state. Signed-off-by: Mike Lockwood <lockwood@android.com> switch: gpio: Don't call request_irq with interrupts disabled Signed-off-by: Arve Hjønnevåg <arve@android.com> switch: Use device_create instead of device_create_drvdata. device_create_drvdata is obsolete. Signed-off-by: Arve Hjønnevåg <arve@android.com> switch_gpio: Add missing #include <linux/interrupt.h> Change-Id: I6c397e41bbe1457162cc69e31a29db5d9f76fccb Signed-off-by: Mike Lockwood <lockwood@android.com>
* | ashmem: Add shmem_set_file to mm/shmem.cJohn Stultz2016-01-11
| | | | | | | | | | | | | | | | | | | | | | | | | | | | NOT FOR STAGING This patch re-adds the original shmem_set_file to mm/shmem.c and converts ashmem.c back to using it. CC: Brian Swetland <swetland@google.com> CC: Colin Cross <ccross@android.com> CC: Arve Hjønnevåg <arve@android.com> CC: Dima Zavin <dima@android.com> CC: Robert Love <rlove@google.com> CC: Greg KH <greg@kroah.com> Signed-off-by: John Stultz <john.stultz@linaro.org>
* | PM / Sleep: Add wake lock api wrapper on top of wakeup sourcesArve Hjønnevåg2016-01-11
|/ | | | | Change-Id: Icaad02fe1e8856fdc2e4215f380594a5dde8e002 Signed-off-by: Arve Hjønnevåg <arve@android.com>
* Merge branch 'sched-urgent-for-linus' of ↵Linus Torvalds2016-01-08
|\ | | | | | | | | | | | | | | | | | | | | | | | | git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip Pull scheduler fixes from Ingo Molnar: "Misc scheduler fixes" * 'sched-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: sched/core: Reset task's lockless wake-queues on fork() sched/core: Fix unserialized r-m-w scribbling stuff sched/core: Check tgid in is_global_init() sched/fair: Fix multiplication overflow on 32-bit systems
| * sched/core: Fix unserialized r-m-w scribbling stuffPeter Zijlstra2016-01-06
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Some of the sched bitfieds (notably sched_reset_on_fork) can be set on other than current, this can cause the r-m-w to race with other updates. Since all the sched bits are serialized by scheduler locks, pull them in a separate word. Reported-by: Tejun Heo <tj@kernel.org> Signed-off-by: Peter Zijlstra (Intel) <peterz@infradead.org> Cc: Dmitry Vyukov <dvyukov@google.com> Cc: Linus Torvalds <torvalds@linux-foundation.org> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Sasha Levin <sasha.levin@oracle.com> Cc: Thomas Gleixner <tglx@linutronix.de> Cc: akpm@linux-foundation.org Cc: hannes@cmpxchg.org Cc: mhocko@kernel.org Cc: vdavydov@parallels.com Link: http://lkml.kernel.org/r/20151125150207.GM11639@twins.programming.kicks-ass.net Signed-off-by: Ingo Molnar <mingo@kernel.org>
| * sched/core: Check tgid in is_global_init()Sergey Senozhatsky2016-01-06
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Our global init task can have sub-threads, so ->pid check is not reliable enough for is_global_init(), we need to check tgid instead. This has been spotted by Oleg and a fix was proposed by Richard a long time ago (see the link below). Oleg wrote: : Because is_global_init() is only true for the main thread of /sbin/init. : : Just look at oom_unkillable_task(). It tries to not kill init. But, say, : select_bad_process() can happily find a sub-thread of is_global_init() : and still kill it. I recently hit the problem in question; re-sending the patch (to the best of my knowledge it has never been submitted) with updated function comment. Credit goes to Oleg and Richard. Suggested-by: Richard Guy Briggs <rgb@redhat.com> Reported-by: Oleg Nesterov <oleg@redhat.com> Signed-off-by: Sergey Senozhatsky <sergey.senozhatsky@gmail.com> Signed-off-by: Peter Zijlstra (Intel) <peterz@infradead.org> Acked-by: Serge Hallyn <serge.hallyn@canonical.com> Cc: Andrew Morton <akpm@linux-foundation.org> Cc: Eric W . Biederman <ebiederm@xmission.com> Cc: Linus Torvalds <torvalds@linux-foundation.org> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Serge E . Hallyn <serge.hallyn@ubuntu.com> Cc: Sergey Senozhatsky <sergey.senozhatsky.work@gmail.com> Cc: Thomas Gleixner <tglx@linutronix.de> Link: https://www.redhat.com/archives/linux-audit/2013-December/msg00086.html Signed-off-by: Ingo Molnar <mingo@kernel.org>
* | Merge tag 'trace-v4.4-rc4-4' of ↵Linus Torvalds2016-01-07
|\ \ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | git://git.kernel.org/pub/scm/linux/kernel/git/rostedt/linux-trace Pull ftrace fix from Steven Rostedt: "PeiyangX Qiu reported that if a module fails to load between calling ftrace_module_init() and do_init_module() that the allocations made in ftrace_module_init() will not be freed, resulting in a memory leak. The solution is to call ftrace_release_mod() on the failing module in the fail path befor do_init_module() is called. This will remove any allocations made for that module, and nothing if ftrace_module_init() wasn't called yet for that module. Note, once do_init_module() is called, the MODULE_GOING notifiers are called for the failed module, which calls into the ftrace code to do the proper clean up (basically calling ftrace_release_mod())" * tag 'trace-v4.4-rc4-4' of git://git.kernel.org/pub/scm/linux/kernel/git/rostedt/linux-trace: ftrace/module: Call clean up function when module init fails early
| * | ftrace/module: Call clean up function when module init fails earlySteven Rostedt (Red Hat)2016-01-07
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | If the module init code fails after calling ftrace_module_init() and before calling do_init_module(), we can suffer from a memory leak. This is because ftrace_module_init() allocates pages to store the locations that ftrace hooks are placed in the module text. If do_init_module() fails, it still calls the MODULE_GOING notifiers which will tell ftrace to do a clean up of the pages it allocated for the module. But if load_module() fails before then, the pages allocated by ftrace_module_init() will never be freed. Call ftrace_release_mod() on the module if load_module() fails before getting to do_init_module(). Link: http://lkml.kernel.org/r/567CEA31.1070507@intel.com Reported-by: "Qiu, PeiyangX" <peiyangx.qiu@intel.com> Fixes: a949ae560a511 "ftrace/module: Hardcode ftrace_module_init() call into load_module()" Cc: stable@vger.kernel.org # v2.6.38+ Acked-by: Rusty Russell <rusty@rustcorp.com.au> Signed-off-by: Steven Rostedt <rostedt@goodmis.org>
* | | Merge tag 'for-linus-20160106' of git://git.infradead.org/linux-mtdLinus Torvalds2016-01-06
|\ \ \ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Pull MTD fixes from Brian Norris: "Three last MTD fixes for v4.4. These are all fixes for regressions and bugs reported mid cycle. Unfortunately, some of them took a bit long to get proper testing and feedback. - Assign the default MTD name earlier in the registration process, so partition parsers (like cmdlinepart) see the right name. Without this, some systems may come up with unpartitioned flash. This was a v4.4-rc1 regression. - Revert some new Winbond SPI NOR flash unlocking/locking support; new code in v4.4 caused regressions on some Spansion flash. - Fix mis-typed parameter ordering in SPI NOR unlock function; this bug was introduced in v4.4-rc1" * tag 'for-linus-20160106' of git://git.infradead.org/linux-mtd: mtd: spi-nor: fix stm_is_locked_sr() parameters mtd: spi-nor: fix Spansion regressions (aliased with Winbond) mtd: fix cmdlinepart parser, early naming for auto-filled MTD
| * | | mtd: spi-nor: fix Spansion regressions (aliased with Winbond)Brian Norris2016-01-05
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Spansion and Winbond have occasionally used the same manufacturer ID, and they don't support the same features. Particularly, writing SR=0 seems to break read access for Spansion's s25fl064k. Unfortunately, we don't currently have a way to differentiate these Spansion and Winbond parts, so rather than regressing support for these Spansion flash, let's drop the new Winbond lock/unlock support for now. We can try to address Winbond support during the next release cycle. Original discussion: http://patchwork.ozlabs.org/patch/549173/ http://patchwork.ozlabs.org/patch/553683/ Fixes: 357ca38d4751 ("mtd: spi-nor: support lock/unlock/is_locked for Winbond") Fixes: c6fc2171b249 ("mtd: spi-nor: disable protection for Winbond flash at startup") Signed-off-by: Brian Norris <computersforpeace@gmail.com> Reported-by: Felix Fietkau <nbd@openwrt.org> Cc: Felix Fietkau <nbd@openwrt.org>
* | | | net: filter: make JITs zero A for SKF_AD_ALU_XOR_XRabin Vincent2016-01-06
| |_|/ |/| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | The SKF_AD_ALU_XOR_X ancillary is not like the other ancillary data instructions since it XORs A with X while all the others replace A with some loaded value. All the BPF JITs fail to clear A if this is used as the first instruction in a filter. This was found using american fuzzy lop. Add a helper to determine if A needs to be cleared given the first instruction in a filter, and use this in the JITs. Except for ARM, the rest have only been compile-tested. Fixes: 3480593131e0 ("net: filter: get rid of BPF_S_* enum") Signed-off-by: Rabin Vincent <rabin@rab.in> Acked-by: Daniel Borkmann <daniel@iogearbox.net> Acked-by: Alexei Starovoitov <ast@kernel.org> Signed-off-by: David S. Miller <davem@davemloft.net>
* | | Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/netLinus Torvalds2015-12-31
|\ \ \ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Pull networking fixes from David Miller: 1) Prevent XFRM per-cpu counter updates for one namespace from being applied to another namespace. Fix from DanS treetman. 2) Fix RCU de-reference in iwl_mvm_get_key_sta_id(), from Johannes Berg. 3) Remove ethernet header assumption in nft_do_chain_netdev(), from Pablo Neira Ayuso. 4) Fix cpsw PHY ident with multiple slaves and fixed-phy, from Pascal Speck. 5) Fix use after free in sixpack_close and mkiss_close. 6) Fix VXLAN fw assertion on bnx2x, from Yuval Mintz. 7) natsemi doesn't check for DMA mapping errors, from Alexey Khoroshilov. 8) Fix inverted test in ip6addrlbl_get(), from ANdrey Ryabinin. 9) Missing initialization of needed_headroom in geneve tunnel driver, from Paolo Abeni. 10) Fix conntrack template leak in openvswitch, from Joe Stringer. 11) Mission initialization of wq->flags in sock_alloc_inode(), from Nicolai Stange. * git://git.kernel.org/pub/scm/linux/kernel/git/davem/net: (35 commits) sctp: sctp should release assoc when sctp_make_abort_user return NULL in sctp_close net, socket, socket_wq: fix missing initialization of flags drivers: net: cpsw: fix error return code openvswitch: Fix template leak in error cases. sctp: label accepted/peeled off sockets sctp: use GFP_USER for user-controlled kmalloc qlcnic: fix a loop exit condition better net: cdc_ncm: avoid changing RX/TX buffers on MTU changes geneve: initialize needed_headroom ipv6: honor ifindex in case we receive ll addresses in router advertisements addrconf: always initialize sysctl table data ipv6/addrlabel: fix ip6addrlbl_get() switchdev: bridge: Pass ageing time as clock_t instead of jiffies sh_eth: fix 16-bit descriptor field access endianness too veth: don’t modify ip_summed; doing so treats packets with bad checksums as good. net: usb: cdc_ncm: Adding Dell DW5813 LTE AT&T Mobile Broadband Card net: usb: cdc_ncm: Adding Dell DW5812 LTE Verizon Mobile Broadband Card natsemi: add checks for dma mapping errors rhashtable: Kill harmless RCU warning in rhashtable_walk_init openvswitch: correct encoding of set tunnel action attributes ...
| * | | net: cdc_ncm: avoid changing RX/TX buffers on MTU changesBjørn Mork2015-12-23
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | NCM buffer sizes are negotiated with the device independently of the network device MTU. The RX buffers are allocated by the usbnet framework based on the rx_urb_size value set by cdc_ncm. A single RX buffer can hold a number of MTU sized packets. The default usbnet change_mtu ndo only modifies rx_urb_size if it is equal to hard_mtu. And the cdc_ncm driver will set rx_urb_size and hard_mtu independently of each other, based on dwNtbInMaxSize and dwNtbOutMaxSize respectively. It was therefore assumed that usbnet_change_mtu() would never touch rx_urb_size. This failed to consider the case where dwNtbInMaxSize and dwNtbOutMaxSize happens to be equal. Fix by implementing an NCM specific change_mtu ndo, modifying the netdev MTU without touching the buffer size settings. Signed-off-by: Bjørn Mork <bjorn@mork.no> Signed-off-by: David S. Miller <davem@davemloft.net>
* | | | Merge branch 'for-linus' of git://git.kernel.dk/linux-blockLinus Torvalds2015-12-30
|\ \ \ \ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Pull block fixes from Jens Axboe: "Make the block layer great again. Basically three amazing fixes in this pull request, split into 4 patches. Believe me, they should go into 4.4. Two of them fix a regression, the third and last fixes an easy-to-trigger bug. - Fix a bad irq enable through null_blk, for queue_mode=1 and using timer completions. Add a block helper to restart a queue asynchronously, and use that from null_blk. From me. - Fix a performance issue in NVMe. Some devices (Intel Pxxxx) expose a stripe boundary, and performance suffers if we cross it. We took that into account for merging, but not for the newer splitting code. Fix from Keith. - Fix a kernel oops in lightnvm with multiple channels. From Matias" * 'for-linus' of git://git.kernel.dk/linux-block: lightnvm: wrong offset in bad blk lun calculation null_blk: use async queue restart helper block: add blk_start_queue_async() block: Split bios on chunk boundaries
| * | | | block: add blk_start_queue_async()Jens Axboe2015-12-28
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | We currently only have an inline/sync helper to restart a stopped queue. If drivers need an async version, they have to roll their own. Add a generic helper instead. Signed-off-by: Jens Axboe <axboe@fb.com>
* | | | | mm/vmstat: fix overflow in mod_zone_page_state()Heiko Carstens2015-12-29
|/ / / / | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | mod_zone_page_state() takes a "delta" integer argument. delta contains the number of pages that should be added or subtracted from a struct zone's vm_stat field. If a zone is larger than 8TB this will cause overflows. E.g. for a zone with a size slightly larger than 8TB the line mod_zone_page_state(zone, NR_ALLOC_BATCH, zone->managed_pages); in mm/page_alloc.c:free_area_init_core() will result in a negative result for the NR_ALLOC_BATCH entry within the zone's vm_stat, since 8TB contain 0x8xxxxxxx pages which will be sign extended to a negative value. Fix this by changing the delta argument to long type. This could fix an early boot problem seen on s390, where we have a 9TB system with only one node. ZONE_DMA contains 2GB and ZONE_NORMAL the rest. The system is trying to allocate a GFP_DMA page but ZONE_DMA is completely empty, so it tries to reclaim pages in an endless loop. This was seen on a heavily patched 3.10 kernel. One possible explaination seem to be the overflows caused by mod_zone_page_state(). Unfortunately I did not have the chance to verify that this patch actually fixes the problem, since I don't have access to the system right now. However the overflow problem does exist anyway. Given the description that a system with slightly less than 8TB does work, this seems to be a candidate for the observed problem. Signed-off-by: Heiko Carstens <heiko.carstens@de.ibm.com> Cc: Christoph Lameter <cl@linux.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
* | | | Merge tag 'scsi-fixes' of ↵Linus Torvalds2015-12-18
|\ \ \ \ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | git://git.kernel.org/pub/scm/linux/kernel/git/jejb/scsi Pull SCSI fixes from James Bottomley: "Three fixes this time, two in SES picked up by KASAN for various types of buffer overrun. The first is a USB array which returns page 8 whatever is asked for and causes us to overrun with incorrect data format assumptions and the second is an invalid iteration of page 10 (the additional information page). The final fix is a reversion of a NULL deref fix which caused suspend/resume not to be called in pairs leading to incorrect device operation (Jens has queued a more proper fix for the problem in block)" * tag 'scsi-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/jejb/scsi: ses: fix additional element traversal bug Revert "SCSI: Fix NULL pointer dereference in runtime PM" ses: Fix problems with simple enclosures
| * | | | ses: fix additional element traversal bugJames Bottomley2015-12-11
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | KASAN found that our additional element processing scripts drop off the end of the VPD page into unallocated space. The reason is that not every element has additional information but our traversal routines think they do, leading to them expecting far more additional information than is present. Fix this by adding a gate to the traversal routine so that it only processes elements that are expected to have additional information (list is in SES-2 section 6.1.13.1: Additional Element Status diagnostic page overview) Reported-by: Pavel Tikhomirov <ptikhomirov@virtuozzo.com> Tested-by: Pavel Tikhomirov <ptikhomirov@virtuozzo.com> Cc: stable@vger.kernel.org Signed-off-by: James Bottomley <James.Bottomley@HansenPartnership.com>
* | | | | include/linux/mmdebug.h: should include linux/bug.hJames Morse2015-12-18
| |/ / / |/| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | mmdebug.h uses BUILD_BUG_ON_INVALID(), assuming someone else included linux/bug.h. Include it ourselves. This saves build-failures such as: arch/arm64/include/asm/pgtable.h: In function 'set_pte_at': arch/arm64/include/asm/pgtable.h:281:3: error: implicit declaration of function 'BUILD_BUG_ON_INVALID' [-Werror=implicit-function-declaration] VM_WARN_ONCE(!pte_young(pte), Fixes: 02602a18c32d7 ("bug: completely remove code generated by disabled VM_BUG_ON()") Signed-off-by: James Morse <james.morse@arm.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
* | | | Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/netLinus Torvalds2015-12-17
|\ \ \ \ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Pull networking fixes from David Miller: 1) Fix uninitialized variable warnings in nfnetlink_queue, a lot of people reported this... From Arnd Bergmann. 2) Don't init mutex twice in i40e driver, from Jesse Brandeburg. 3) Fix spurious EBUSY in rhashtable, from Herbert Xu. 4) Missing DMA unmaps in mvpp2 driver, from Marcin Wojtas. 5) Fix race with work structure access in pppoe driver causing corruptions, from Guillaume Nault. 6) Fix OOPS due to sh_eth_rx() not checking whether netdev_alloc_skb() actually succeeded or not, from Sergei Shtylyov. 7) Don't lose flags when settifn IFA_F_OPTIMISTIC in ipv6 code, from Bjørn Mork. 8) VXLAN_HD_RCO defined incorrectly, fix from Jiri Benc. 9) Fix clock source used for cookies in SCTP, from Marcelo Ricardo Leitner. 10) aurora driver needs HAS_DMA dependency, from Geert Uytterhoeven. 11) ndo_fill_metadata_dst op of vxlan has to handle ipv6 tunneling properly as well, from Jiri Benc. 12) Handle request sockets properly in xfrm layer, from Eric Dumazet. 13) Double stats update in ipv6 geneve transmit path, fix from Pravin B Shelar. 14) sk->sk_policy[] needs RCU protection, and as a result xfrm_policy_destroy() needs to free policies using an RCU grace period, from Eric Dumazet. 15) SCTP needs to clone ipv6 tx options in order to avoid use after free, from Eric Dumazet. 16) Missing kbuild export if ila.h, from Stephen Hemminger. 17) Missing mdiobus_alloc() return value checking in mdio-mux.c, from Tobias Klauser. 18) Validate protocol value range in ->create() methods, from Hannes Frederic Sowa. 19) Fix early socket demux races that result in illegal dst reuse, from Eric Dumazet. 20) Validate socket address length in pptp code, from WANG Cong. 21) skb_reorder_vlan_header() uses incorrect offset and can corrupt packets, from Vlad Yasevich. 22) Fix memory leaks in nl80211 registry code, from Ola Olsson. 23) Timeout loop count handing fixes in mISDN, xgbe, qlge, sfc, and qlcnic. From Dan Carpenter. 24) msg.msg_iocb needs to be cleared in recvfrom() otherwise, for example, AF_ALG will interpret it as an async call. From Tadeusz Struk. 25) inetpeer_set_addr_v4 forgets to initialize the 'vif' field, from Eric Dumazet. 26) rhashtable enforces the minimum table size not early enough, breaking how we calculate the per-cpu lock allocations. From Herbert Xu. 27) Fix FCC port lockup in 82xx driver, from Martin Roth. 28) FOU sockets need to be freed using RCU, from Hannes Frederic Sowa. 29) Fix out-of-bounds access in __skb_complete_tx_timestamp() and sock_setsockopt() wrt. timestamp handling. From WANG Cong. * git://git.kernel.org/pub/scm/linux/kernel/git/davem/net: (117 commits) net: check both type and procotol for tcp sockets drivers: net: xgene: fix Tx flow control tcp: restore fastopen with no data in SYN packet af_unix: Revert 'lock_interruptible' in stream receive code fou: clean up socket with kfree_rcu 82xx: FCC: Fixing a bug causing to FCC port lock-up gianfar: Don't enable RX Filer if not supported net: fix warnings in 'make htmldocs' by moving macro definition out of field declaration rhashtable: Fix walker list corruption rhashtable: Enforce minimum size on initial hash table inet: tcp: fix inetpeer_set_addr_v4() ipv6: automatically enable stable privacy mode if stable_secret set net: fix uninitialized variable issue bluetooth: Validate socket address length in sco_sock_bind(). net_sched: make qdisc_tree_decrease_qlen() work for non mq ser_gigaset: remove unnecessary kfree() calls from release method ser_gigaset: fix deallocation of platform device structure ser_gigaset: turn nonsense checks into WARN_ON ser_gigaset: fix up NULL checks qlcnic: fix a timeout loop ...
| * \ \ \ Merge git://git.kernel.org/pub/scm/linux/kernel/git/pablo/nfDavid S. Miller2015-12-14
| |\ \ \ \ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Pablo Neira Ayuso says: ==================== netfilter fixes for net The following patchset contains Netfilter fixes for you net tree, specifically for nf_tables and nfnetlink_queue, they are: 1) Avoid a compilation warning in nfnetlink_queue that was introduced in the previous merge window with the simplification of the conntrack integration, from Arnd Bergmann. 2) nfnetlink_queue is leaking the pernet subsystem registration from a failure path, patch from Nikolay Borisov. 3) Pass down netns pointer to batch callback in nfnetlink, this is the largest patch and it is not a bugfix but it is a dependency to resolve a splat in the correct way. 4) Fix a splat due to incorrect socket memory accounting with nfnetlink skbuff clones. 5) Add missing conntrack dependencies to NFT_DUP_IPV4 and NFT_DUP_IPV6. 6) Traverse the nftables commit list in reverse order from the commit path, otherwise we crash when the user applies an incremental update via 'nft -f' that deletes an object that was just introduced in this batch, from Xin Long. Regarding the compilation warning fix, many people have sent us (and keep sending us) patches to address this, that's why I'm including this batch even if this is not critical. ==================== Signed-off-by: David S. Miller <davem@davemloft.net>
| | * | | | netfilter: nfnetlink: avoid recurrent netns lookups in call_batchPablo Neira Ayuso2015-12-10
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Pass the net pointer to the call_batch callback functions so we can skip recurrent lookups. Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org> Tested-by: Arturo Borrero Gonzalez <arturo.borrero.glez@gmail.com>
| * | | | | qed: fix handling of concurrent ramrods.Tomer Tayar2015-12-07
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Concurrent non-blocking slowpath ramrods can be completed out-of-order on the completion chain. Recycling completed elements, while previously sent elements are still completion pending, can lead to overriding of active elements on the chain. Furthermore, sending pending slowpath ramrods currently lacks the update of the chain element physical pointer. This patch: * Ensures that ramrods are sent to the FW with consecutive echo values. * Handles out-of-order completions by freeing only first successive completed entries. * Updates the chain element physical pointer when copying a pending element into a free element for sending. Signed-off-by: Tomer Tayar <Tomer.Tayar@qlogic.com> Signed-off-by: Manish Chopra <manish.chopra@qlogic.com> Signed-off-by: David S. Miller <davem@davemloft.net>
| * | | | | qed: Fix corner case for chain in-between pagesTomer Tayar2015-12-07
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | The amount of chain next pointer elements between the producer and the consumer indices depends on which pages they currently point to. The current calculation is based only on their difference, and it can lead to a number of free elements which is higher by 1 than the actual value. Signed-off-by: Tomer Tayar <Tomer.Tayar@qlogic.com> Signed-off-by: Manish Chopra <manish.chopra@qlogic.com> Signed-off-by: David S. Miller <davem@davemloft.net>
| * | | | | net: remove unnecessary semicolon in netdev_alloc_pcpu_stats()Felix Fietkau2015-12-06
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | This semicolon causes a build error if the function call is wrapped in parentheses. Fixes: aabc92bbe3cf ("net: add __netdev_alloc_pcpu_stats() to indicate gfp flags") Reported-by: Imre Kaloz <kaloz@openwrt.org> Signed-off-by: Felix Fietkau <nbd@openwrt.org> Acked-by: Pablo Neira Ayuso <pablo@netfilter.org> Signed-off-by: David S. Miller <davem@davemloft.net>
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