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2016-04-05mac80211: mesh: handle failed alloc for rmc cacheBob Copeland1-0/+3
In the unlikely case that mesh_rmc_init() fails with -ENOMEM, the rmc pointer will be left as NULL but the interface is still operational because ieee80211_mesh_init_sdata() is not allowed to fail. If this happens, we would blindly dereference rmc when checking whether a multicast frame is in the cache. Instead just drop the frames in the forwarding path. Signed-off-by: Bob Copeland <me@bobcopeland.com> Signed-off-by: Johannes Berg <johannes.berg@intel.com>
2016-04-05mac80211: mesh: fix crash in mesh_path_timerBob Copeland3-15/+25
The mesh_path_reclaim() function, called from an rcu callback, cancels the mesh_path_timer associated with a mesh path. Unfortunately, this call can happen much later, perhaps after the hash table itself is destroyed. Such a situation led to the following crash in mesh_path_send_to_gates() when dereferencing the tbl pointer: [ 23.901661] BUG: unable to handle kernel NULL pointer dereference at 0000000000000008 [ 23.905516] IP: [<ffffffff814c910b>] mesh_path_send_to_gates+0x2b/0x740 [ 23.908757] PGD 99ca067 PUD 99c4067 PMD 0 [ 23.910789] Oops: 0000 [#1] PREEMPT SMP DEBUG_PAGEALLOC [ 23.913485] CPU: 0 PID: 0 Comm: swapper/0 Not tainted 4.5.0-rc6-wt+ #43 [ 23.916675] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS Debian-1.8.2-1 04/01/2014 [ 23.920471] task: ffffffff81685500 ti: ffffffff81678000 task.ti: ffffffff81678000 [ 23.922619] RIP: 0010:[<ffffffff814c910b>] [<ffffffff814c910b>] mesh_path_send_to_gates+0x2b/0x740 [ 23.925237] RSP: 0018:ffff88000b403d30 EFLAGS: 00010286 [ 23.926739] RAX: 0000000000000000 RBX: ffff880009bc0d20 RCX: 0000000000000102 [ 23.928796] RDX: 000000000000002e RSI: 0000000000000001 RDI: ffff880009bc0d20 [ 23.930895] RBP: ffff88000b403e18 R08: 0000000000000001 R09: 0000000000000001 [ 23.932917] R10: 0000000000000000 R11: 0000000000000001 R12: ffff880009c20940 [ 23.936370] R13: ffff880009bc0e70 R14: ffff880009c21c40 R15: ffff880009bc0d20 [ 23.939823] FS: 0000000000000000(0000) GS:ffff88000b400000(0000) knlGS:0000000000000000 [ 23.943688] CS: 0010 DS: 0000 ES: 0000 CR0: 000000008005003b [ 23.946429] CR2: 0000000000000008 CR3: 00000000099c5000 CR4: 00000000000006b0 [ 23.949861] Stack: [ 23.950840] 000000000000002e ffff880009c20940 ffff88000b403da8 ffffffff8109e551 [ 23.954467] ffffffff82711be2 000000000000002e 0000000000000000 ffffffff8166a5f5 [ 23.958141] 0000000000685ce8 0000000000000246 ffff880009bc0d20 ffff880009c20940 [ 23.961801] Call Trace: [ 23.962987] <IRQ> [ 23.963963] [<ffffffff8109e551>] ? vprintk_emit+0x351/0x5e0 [ 23.966782] [<ffffffff8109e8ff>] ? vprintk_default+0x1f/0x30 [ 23.969529] [<ffffffff810ffa41>] ? printk+0x48/0x50 [ 23.971956] [<ffffffff814ceef3>] mesh_path_timer+0x133/0x160 [ 23.974707] [<ffffffff814cedc0>] ? mesh_nexthop_resolve+0x230/0x230 [ 23.977775] [<ffffffff810b04ee>] call_timer_fn+0xce/0x330 [ 23.980448] [<ffffffff810b0425>] ? call_timer_fn+0x5/0x330 [ 23.983126] [<ffffffff814cedc0>] ? mesh_nexthop_resolve+0x230/0x230 [ 23.986091] [<ffffffff810b097c>] run_timer_softirq+0x22c/0x390 Instead of cancelling in the RCU callback, set a new flag to prevent the timer from being rearmed, and then cancel the timer synchronously when freeing the mesh path. This leaves mesh_path_reclaim() doing nothing but kfree, so switch to kfree_rcu(). Fixes: 3b302ada7f0a ("mac80211: mesh: move path tables into if_mesh") Signed-off-by: Bob Copeland <me@bobcopeland.com> Signed-off-by: Johannes Berg <johannes.berg@intel.com>
2016-04-05mac80211: track and tell driver about GO client P2P PS abilitiesAyala Beker3-1/+40
Legacy clients don't support P2P power save mechanism, and thus if a P2P GO has a legacy client connected to it, it should disable P2P PS mechanisms. Let the driver know about this with a new bss_conf parameter. Signed-off-by: Ayala Beker <ayala.beker@intel.com> Signed-off-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com> Signed-off-by: Johannes Berg <johannes.berg@intel.com>
2016-04-05cfg80211: allow userspace to specify client P2P PS supportAyala Beker3-0/+55
Legacy clients don't support P2P power save mechanisms, and thus if a P2P GO has a legacy client connected to it, it has to make some changes in the PS behavior. To handle this, add an attribute to specify whether a station supports P2P PS or not. If the attribute was not specified cfg80211 will assume that station supports it for P2P GO interface, and does NOT support it for AP interface, matching the current assumptions in the code. Signed-off-by: Ayala Beker <ayala.beker@intel.com> Signed-off-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com> Signed-off-by: Johannes Berg <johannes.berg@intel.com>
2016-04-05mac80211: avoid useless memory write on each frame RXJohannes Berg1-3/+4
In the likely case that probe_count is 0, don't write to the memory there. Also use ifmgd consistently in the function, instead of using sdata->u.mgd as well. Signed-off-by: Johannes Berg <johannes.berg@intel.com> Signed-off-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com> Signed-off-by: Johannes Berg <johannes.berg@intel.com>
2016-04-05mac80211: fix cipher scheme function nameJohannes Berg1-4/+4
The code is only used with iwlwifi, but still should have proper mac80211 naming scheme; fix that. Signed-off-by: Johannes Berg <johannes.berg@intel.com>
2016-04-05mac80211: clean up station flags debugfsJohannes Berg2-20/+47
Avoid the really strange %s%s%s expression, use an array of flag names and check that all flags are present. Signed-off-by: Johannes Berg <johannes.berg@intel.com>
2016-04-05ieee80211: support parsing Fine Timing Measurement action frameAvraham Stern1-0/+11
Add definition for Fine Timing Measurement (FTM) frame format as defined in IEEE802.11-REVmcD5.0 section 9.6.8.33 Signed-off-by: Avraham Stern <avraham.stern@intel.com> Signed-off-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com> Signed-off-by: Johannes Berg <johannes.berg@intel.com>
2016-04-05mac80211: don't start dynamic PS timer if not neededJohannes Berg1-5/+5
If the device implements dynamic PS itself, there's no need to ever start the dynamic powersave timer on RX. While at it, fix up some indentation in this code. Signed-off-by: Johannes Berg <johannes.berg@intel.com>
2016-04-05mac80211: remove sta_info debugfs sub-structJohannes Berg3-17/+15
Since the previous patch, the struct only has a single member, so remove the struct and leave just the single member. Signed-off-by: Johannes Berg <johannes.berg@intel.com>
2016-04-05mac80211: Remove unused variable in per STA debugfs structMohammed Shafi Shajakhan2-3/+0
Remove unused variable in per STA debugfs structure, 'commit 34e895075e21 ("mac80211: allow station add/remove to sleep")' removed the only user of 'add_has_run'. Signed-off-by: Mohammed Shafi Shajakhan <mohammed@qti.qualcomm.com> Signed-off-by: Johannes Berg <johannes.berg@intel.com>
2016-04-05mac80211: enable starting BA session with custom timeoutSara Sharon1-17/+30
Currently the debugfs entry for starting aggregation session starts it with timeout of 5 seconds. Allow opening a session with a custom timeout (according to spec 0 is no timeout). while at it, refactor the function and remove the magic numbers. Signed-off-by: Sara Sharon <sara.sharon@intel.com> Signed-off-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com> Signed-off-by: Johannes Berg <johannes.berg@intel.com>
2016-04-05mac80211: add NETIF_F_RXCSUM to features white listSara Sharon1-1/+1
NETIF_F_RXCSUM is not in the white list, though some drivers may want to set it in order to enable seeing the actual RX checksum status in ethtool. Signed-off-by: Sara Sharon <sara.sharon@intel.com> Signed-off-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com> Signed-off-by: Johannes Berg <johannes.berg@intel.com>
2016-04-05mac80211: Set global RRM capabilityEmmanuel Grumbach1-0/+2
Allow publishing RRM capabilities for features that are not HW dependent. Signed-off-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com> Signed-off-by: Johannes Berg <johannes.berg@intel.com>
2016-04-05cfg80211: fix kernel-doc struct nameAkira Moroo1-1/+1
This patch fix a structure name mismatch in cfg80211.h. Signed-off-by: Moroo Akira <retrage01@gmail.com> Reviewed-by: Julian Calaby <julian.calaby@gmail.com> Signed-off-by: Johannes Berg <johannes.berg@intel.com>
2016-04-05mac80211: minstrel_ht: improve sample rate skip logicFelix Fietkau1-7/+16
There were a few issues that were slowing down the process of finding the optimal rate, especially on devices with multi-rate retry limitations: When max_tp_rate[0] was slower than max_tp_rate[1], the code did not sample max_tp_rate[1], which would often allow it to switch places with max_tp_rate[0] (e.g. if only the first sampling attempts were bad, but the rate is otherwise good). Also, sample attempts of rates between max_tp_rate[0] and [1] were being ignored in this case, because the code only checked if the rate was slower than [1]. Fix this by checking against the fastest / second fastest max_tp_rate instead of assuming a specific order between the two. In my tests this patch significantly reduces the time until minstrel_ht finds the optimal rate right after assoc Signed-off-by: Felix Fietkau <nbd@openwrt.org> Signed-off-by: Johannes Berg <johannes.berg@intel.com>
2016-04-05mac80211: do not pass injected frames without a valid rate to the driverFelix Fietkau1-0/+3
Fall back to rate control if the requested bitrate was not found. Fixes: dfdfc2beb0dd ("mac80211: Parse legacy and HT rate in injected frames") Signed-off-by: Felix Fietkau <nbd@openwrt.org> Signed-off-by: Johannes Berg <johannes.berg@intel.com>
2016-04-05mac80211: fix parsing of 40Mhz in injected radiotap headerSven Eckelmann1-2/+3
The MCS bandwidth part of the radiotap header is 2 bits wide. The full 2 bit have to compared against IEEE80211_RADIOTAP_MCS_BW_40 and not only if the first bit is set. Otherwise IEEE80211_RADIOTAP_MCS_BW_40 can be confused with IEEE80211_RADIOTAP_MCS_BW_20U. Fixes: dfdfc2beb0dd ("mac80211: Parse legacy and HT rate in injected frames") Signed-off-by: Sven Eckelmann <sven@narfation.org> Signed-off-by: Johannes Berg <johannes.berg@intel.com>
2016-04-05nl80211: add feature for BSS selection supportArend van Spriel4-0/+204
Introducing a new feature that the driver can use to indicate the driver/firmware supports configuration of BSS selection criteria upon CONNECT command. This can be useful when multiple BSS-es are found belonging to the same ESS, ie. Infra-BSS with same SSID. The criteria can then be used to offload selection of a preferred BSS. Reviewed-by: Hante Meuleman <meuleman@broadcom.com> Reviewed-by: Franky (Zhenhui) Lin <frankyl@broadcom.com> Reviewed-by: Pieter-Paul Giesberts <pieterpg@broadcom.com> Reviewed-by: Lei Zhang <leizh@broadcom.com> Signed-off-by: Arend van Spriel <arend@broadcom.com> [move wiphy support check into parse_bss_select()] Signed-off-by: Johannes Berg <johannes.berg@intel.com>
2016-04-05mac80211: synchronize driver rx queues before removing a stationSara Sharon4-1/+40
Some devices, like iwlwifi, have RSS queues. This may cause a situation where a disassociation is handled in control path and results in station removal while there are prior RX frames that were still not processed in other queues. When they will be processed the station will be gone, and the frames will be dropped. Add a synchronization interface to avoid that. When driver returns from the synchronization mac80211 may remove the station. Signed-off-by: Sara Sharon <sara.sharon@intel.com> Signed-off-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com> Signed-off-by: Johannes Berg <johannes.berg@intel.com>
2016-04-05mac80211: mesh: convert path table to rhashtableBob Copeland4-575/+259
In the time since the mesh path table was implemented as an RCU-traversable, dynamically growing hash table, a generic RCU hashtable implementation was added to the kernel. Switch the mesh path table over to rhashtable to remove some code and also gain some features like automatic shrinking. Cc: Thomas Graf <tgraf@suug.ch> Cc: netdev@vger.kernel.org Signed-off-by: Bob Copeland <me@bobcopeland.com> Signed-off-by: Johannes Berg <johannes.berg@intel.com>
2016-04-05rhashtable: accept GFP flags in rhashtable_walk_initBob Copeland8-11/+17
In certain cases, the 802.11 mesh pathtable code wants to iterate over all of the entries in the forwarding table from the receive path, which is inside an RCU read-side critical section. Enable walks inside atomic sections by allowing GFP_ATOMIC allocations for the walker state. Change all existing callsites to pass in GFP_KERNEL. Acked-by: Thomas Graf <tgraf@suug.ch> Signed-off-by: Bob Copeland <me@bobcopeland.com> [also adjust gfs2/glock.c and rhashtable tests] Signed-off-by: Johannes Berg <johannes.berg@intel.com>
2016-04-05mac80211: mesh: embed known gates list in struct mesh_pathBob Copeland2-56/+45
The mesh path table uses a struct mesh_node in its hlists in order to support a resizable hash table: the mesh_node provides an indirection to the actual mesh path so that two different bucket lists can point to the same path entry. However, for the known gates list, we don't need this indirection because there is ever only one list. So we can just embed the hlist_node in the mesh path itself, which simplifies things a bit and saves a linear search whenever we need to find an item in the list. Signed-off-by: Bob Copeland <me@bobcopeland.com> Signed-off-by: Johannes Berg <johannes.berg@intel.com>
2016-04-05mac80211: mesh: factor out common mesh path allocation codeBob Copeland1-23/+28
Remove duplicate code to allocate and initialize a mesh path or mesh proxy path. Signed-off-by: Bob Copeland <me@bobcopeland.com> Signed-off-by: Johannes Berg <johannes.berg@intel.com>
2016-04-05mac80211: mesh: don't hash sdata in mpath tablesBob Copeland1-10/+8
Now that the sdata pointer is the same for all entries of a path table, hashing it is pointless, so hash only the address. Signed-off-by: Bob Copeland <me@bobcopeland.com> Signed-off-by: Johannes Berg <johannes.berg@intel.com>
2016-04-05mac80211: mesh: move path tables into if_meshBob Copeland6-115/+104
The mesh path and mesh gate hashtables are global, containing all of the mpaths for every mesh interface, but the paths are all tied logically to a single interface. The common case is just a single mesh interface, so optimize for that by moving the global hashtable into the per-interface struct. Doing so allows us to drop sdata pointer comparisons inside the lookups and also saves a few bytes of BSS and data. Signed-off-by: Bob Copeland <me@bobcopeland.com> Signed-off-by: Johannes Berg <johannes.berg@intel.com>
2016-04-05mac80211_hwsim: Support a hw scan request for a specific BSSIDJouni Malinen1-0/+5
If the hw scan request specifies a single BSSID, use that value instead of the wildcard BSSID in the Probe Request frames. Signed-off-by: Jouni Malinen <jouni@qca.qualcomm.com> Signed-off-by: Johannes Berg <johannes.berg@intel.com>
2016-04-05mac80211: Support a scan request for a specific BSSIDJouni Malinen1-1/+3
If the cfg80211 scan trigger operation specifies a single BSSID, use that value instead of the wildcard BSSID in the Probe Request frames. Signed-off-by: Jouni Malinen <jouni@qca.qualcomm.com> Signed-off-by: Johannes Berg <johannes.berg@intel.com>
2016-04-05cfg80211: Allow a scan request for a specific BSSIDJouni Malinen5-1/+15
This allows scans for a specific BSSID to be optimized by the user space application by requesting the driver to set the Probe Request frame BSSID field (Address 3) to the specified BSSID instead of the wildcard BSSID. This prevents other APs from replying which reduces airtime need and latency in getting the response from the target AP through. This is an optimization and as such, it is acceptable for some of the drivers not to support the mechanism. If not supported, the wildcard BSSID will be used and more responses may be received. Signed-off-by: Jouni Malinen <jouni@qca.qualcomm.com> Signed-off-by: Johannes Berg <johannes.berg@intel.com>
2016-04-05mac80211: document only injected *_RADIOTAP_* flagsSven Eckelmann1-2/+2
Not the internal flags but the radiotap flags are parsed when the monitor injected frames are prepared for transmission. Thus the documentation should only document these. Reported-by: Lorenzo Bianconi <lorenzo.bianconi83@gmail.com> Reported-by: Johannes Berg <johannes@sipsolutions.net> Fixes: dfdfc2beb0dd ("mac80211: Parse legacy and HT rate in injected frames") Signed-off-by: Sven Eckelmann <sven@narfation.org> Signed-off-by: Johannes Berg <johannes.berg@intel.com>
2016-04-05mac80211: allow not sending MIC up from driver for HW cryptoSara Sharon5-17/+23
When HW crypto is used, there's no need for the CCMP/GCMP MIC to be available to mac80211, and the hardware might have removed it already after checking. The MIC is also useless to have when the frame is already decrypted, so allow indicating that it's not present. Since we are running out of bits in mac80211_rx_flags, make the flags field a u64. Signed-off-by: Sara Sharon <sara.sharon@intel.com> Signed-off-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com> Signed-off-by: Johannes Berg <johannes.berg@intel.com>
2016-04-05mac80211: allow drivers to report CLOCK_BOOTTIME for scan resultsJohannes Berg2-1/+6
This was requested by Android, and the appropriate cfg80211 API had been added by Dmitry. Support it in mac80211, allowing drivers to provide the timestamp. Signed-off-by: Johannes Berg <johannes.berg@intel.com>
2016-04-05mac80211: parse VHT info in injected framesLorenzo Bianconi2-0/+44
Add VHT radiotap parsing support to ieee80211_parse_tx_radiotap(). That capability has been tested using a d-link dir-860l rev b1 running OpenWrt trunk and mt76 driver Signed-off-by: Lorenzo Bianconi <lorenzo.bianconi83@gmail.com> Signed-off-by: Johannes Berg <johannes.berg@intel.com>
2016-04-05rfkill: Use switch to demux userspace operationsJoão Paulo Rechi Vita1-14/+22
Using a switch to handle different ev.op values in rfkill_fop_write() makes the code easier to extend, as out-of-range values can always be handled by the default case. Signed-off-by: João Paulo Rechi Vita <jprvita@endlessm.com> [roll in fix for RFKILL_OP_CHANGE from Jouni] Signed-off-by: Johannes Berg <johannes.berg@intel.com>
2016-04-05wext: unregister_pernet_subsys() on notifier registration failureJohannes Berg1-1/+4
If register_netdevice_notifier() fails (which in practice it can't right now), we should call unregister_pernet_subsys(). Do that. Reported-by: Ben Hutchings <ben@decadent.org.uk> Signed-off-by: Johannes Berg <johannes.berg@intel.com>
2016-04-01Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/netLinus Torvalds75-610/+824
Pull networking fixes from David Miller: 1) Missing device reference in IPSEC input path results in crashes during device unregistration. From Subash Abhinov Kasiviswanathan. 2) Per-queue ISR register writes not being done properly in macb driver, from Cyrille Pitchen. 3) Stats accounting bugs in bcmgenet, from Patri Gynther. 4) Lightweight tunnel's TTL and TOS were swapped in netlink dumps, from Quentin Armitage. 5) SXGBE driver has off-by-one in probe error paths, from Rasmus Villemoes. 6) Fix race in save/swap/delete options in netfilter ipset, from Vishwanath Pai. 7) Ageing time of bridge not set properly when not operating over a switchdev device. Fix from Haishuang Yan. 8) Fix GRO regression wrt nested FOU/GUE based tunnels, from Alexander Duyck. 9) IPV6 UDP code bumps wrong stats, from Eric Dumazet. 10) FEC driver should only access registers that actually exist on the given chipset, fix from Fabio Estevam. * git://git.kernel.org/pub/scm/linux/kernel/git/davem/net: (73 commits) net: mvneta: fix changing MTU when using per-cpu processing stmmac: fix MDIO settings Revert "stmmac: Fix 'eth0: No PHY found' regression" stmmac: fix TX normal DESC net: mvneta: use cache_line_size() to get cacheline size net: mvpp2: use cache_line_size() to get cacheline size net: mvpp2: fix maybe-uninitialized warning tun, bpf: fix suspicious RCU usage in tun_{attach, detach}_filter net: usb: cdc_ncm: adding Telit LE910 V2 mobile broadband card rtnl: fix msg size calculation in if_nlmsg_size() fec: Do not access unexisting register in Coldfire net: mvneta: replace MVNETA_CPU_D_CACHE_LINE_SIZE with L1_CACHE_BYTES net: mvpp2: replace MVPP2_CPU_D_CACHE_LINE_SIZE with L1_CACHE_BYTES net: dsa: mv88e6xxx: Clear the PDOWN bit on setup net: dsa: mv88e6xxx: Introduce _mv88e6xxx_phy_page_{read, write} bpf: make padding in bpf_tunnel_key explicit ipv6: udp: fix UDP_MIB_IGNOREDMULTI updates bnxt_en: Fix ethtool -a reporting. bnxt_en: Fix typo in bnxt_hwrm_set_pause_common(). bnxt_en: Implement proper firmware message padding. ...
2016-04-01Merge tag 'clk-fixes-for-linus' of ↵Linus Torvalds11-45/+45
git://git.kernel.org/pub/scm/linux/kernel/git/clk/linux Pull clk fixes from Stephen Boyd: "A handful of const updates for reset ops and a couple fixes to the newly introduced IPQ4019 clock driver" * tag 'clk-fixes-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/clk/linux: clk: qcom: ipq4019: add some fixed clocks for ddrppl and fepll clk: qcom: ipq4019: switch remaining defines to enums clk: qcom: Make reset_control_ops const clk: tegra: Make reset_control_ops const clk: sunxi: Make reset_control_ops const clk: atlas7: Make reset_control_ops const clk: rockchip: Make reset_control_ops const clk: mmp: Make reset_control_ops const clk: mediatek: Make reset_control_ops const
2016-04-01Merge tag 'pm+acpi-4.6-rc2' of ↵Linus Torvalds4-0/+64
git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm Pull power management and ACPI fix from Rafael J. Wysocki: "Just one fix for a nasty boot failure on some systems based on Intel Skylake that shipped with broken firmware where enabling hardware-coordinated P-states management (HWP) causes a faulty interrupt handler in SMM to be invoked and crash the system (Srinivas Pandruvada)" * tag 'pm+acpi-4.6-rc2' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm: ACPI / processor: Request native thermal interrupt handling via _OSC
2016-04-01Merge branch 'akpm' (patches from Andrew)Linus Torvalds11-42/+34
Merge fixes from Andrew Morton: "11 fixes" * emailed patches from Andrew Morton <akpm@linux-foundation.org>: .mailmap: add Christophe Ricard Make CONFIG_FHANDLE default y mm/page_isolation.c: fix the function comments oom, oom_reaper: do not enqueue task if it is on the oom_reaper_list head mm/page_isolation: fix tracepoint to mirror check function behavior mm/rmap: batched invalidations should use existing api x86/mm: TLB_REMOTE_SEND_IPI should count pages mm: fix invalid node in alloc_migrate_target() include/linux/huge_mm.h: return NULL instead of false for pmd_trans_huge_lock() mm, kasan: fix compilation for CONFIG_SLAB MAINTAINERS: orangefs mailing list is subscribers-only
2016-04-02Merge branch 'acpi-processor'Rafael J. Wysocki4-0/+64
* acpi-processor: ACPI / processor: Request native thermal interrupt handling via _OSC
2016-04-01Merge branch 'for-linus-4.6' of ↵Linus Torvalds1-20/+25
git://git.kernel.org/pub/scm/linux/kernel/git/mason/linux-btrfs Pull btrfs fixes from Chris Mason: "This has a few fixes Dave Sterba had queued up. These are all pretty small, but since they were tested I decided against waiting for more" * 'for-linus-4.6' of git://git.kernel.org/pub/scm/linux/kernel/git/mason/linux-btrfs: btrfs: transaction_kthread() is not freezable btrfs: cleaner_kthread() doesn't need explicit freeze btrfs: do not write corrupted metadata blocks to disk btrfs: csum_tree_block: return proper errno value
2016-04-01Merge tag 'for-linus' of git://github.com/martinbrandenburg/linuxLinus Torvalds2-6/+4
Pull OrangeFS fixes from Martin Brandenburg: "Two bugfixes for OrangeFS. One is a reference counting bug and the other is a typo in client minimum version" * tag 'for-linus' of git://github.com/martinbrandenburg/linux: orangefs: minimum userspace version is 2.9.3 orangefs: don't put readdir slot twice
2016-04-01Merge tag 'arm64-fixes' of ↵Linus Torvalds7-131/+90
git://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux Pull arm64 fixes from Will Deacon: - fix oops when patching in alternative sequences on big-endian CPUs - reconcile asm/perf_event.h after merge window fallout with KVM ARM - defconfig updates * tag 'arm64-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux: arm64: defconfig: updates for 4.6 arm64: perf: Move PMU register related defines to asm/perf_event.h arm64: opcodes.h: Add arm big-endian config options before including arm header
2016-04-01Merge tag 'sound-4.6-rc2' of ↵Linus Torvalds7-22/+79
git://git.kernel.org/pub/scm/linux/kernel/git/tiwai/sound Pull sound fixes from Takashi Iwai: "A collection of small fixes: - a fix in ALSA timer core to avoid possible BUG() trigger - a fix in ALSA timer core 32bit compat layer - a few HD-audio quirks for ASUS and HP machines - AMD HD-audio HDMI controller quirks - fixes of USB-audio double-free at some error paths - a fix for memory leak in DICE driver at hotunplug" * tag 'sound-4.6-rc2' of git://git.kernel.org/pub/scm/linux/kernel/git/tiwai/sound: ALSA: timer: Use mod_timer() for rearming the system timer ALSA: hda - fix front mic problem for a HP desktop ALSA: usb-audio: Fix double-free in error paths after snd_usb_add_audio_stream() call ALSA: hda: add AMD Polaris-10/11 AZ PCI IDs with proper driver caps ALSA: dice: fix memory leak when unplugging ALSA: hda - Apply fix for white noise on Asus N550JV, too ALSA: hda - Fix white noise on Asus N750JV headphone ALSA: hda - Asus N750JV external subwoofer fixup ALSA: timer: fix gparams ioctl compatibility for different architectures
2016-04-01.mailmap: add Christophe RicardChristophe Ricard1-0/+1
Different computers had different settings in the mail client. Some contributions appear as Christophe Ricard, others as Christophe RICARD. Signed-off-by: Christophe Ricard <christophe-h.ricard@st.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2016-04-01Make CONFIG_FHANDLE default yAndi Kleen1-1/+2
Newer Fedora and OpenSUSE didn't boot with my standard configuration. It took me some time to figure out why, in fact I had to write a script to try different config options systematically. The problem is that something (systemd) in dracut depends on CONFIG_FHANDLE, which adds open by file handle syscalls. While it is set in defconfigs it is very easy to miss when updating older configs because it is not default y. Make it default y and also depend on EXPERT, as dracut use is likely widespread. Signed-off-by: Andi Kleen <ak@linux.intel.com> Cc: Richard Weinberger <richard.weinberger@gmail.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2016-04-01mm/page_isolation.c: fix the function commentsNeil Zhang1-1/+1
Commit fea85cff11de ("mm/page_isolation.c: return last tested pfn rather than failure indicator") changed the meaning of the return value. Let's change the function comments as well. Signed-off-by: Neil Zhang <neilzhang1123@hotmail.com> Cc: Joonsoo Kim <js1304@gmail.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2016-04-01oom, oom_reaper: do not enqueue task if it is on the oom_reaper_list headMichal Hocko1-1/+5
Commit bb29902a7515 ("oom, oom_reaper: protect oom_reaper_list using simpler way") has simplified the check for tasks already enqueued for the oom reaper by checking tsk->oom_reaper_list != NULL. This check is not sufficient because the tsk might be the head of the queue without any other tasks queued and then we would simply lockup looping on the same task. Fix the condition by checking for the head as well. Fixes: bb29902a7515 ("oom, oom_reaper: protect oom_reaper_list using simpler way") Signed-off-by: Michal Hocko <mhocko@suse.com> Acked-by: Tetsuo Handa <penguin-kernel@I-love.SAKURA.ne.jp> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2016-04-01mm/page_isolation: fix tracepoint to mirror check function behaviorLucas Stach1-1/+1
Page isolation has not failed if the fin pfn extends beyond the end pfn and test_pages_isolated checks this correctly. Fix the tracepoint to report the same result as the actual check function. Signed-off-by: Lucas Stach <l.stach@pengutronix.de> Acked-by: Vlastimil Babka <vbabka@suse.cz> Cc: Joonsoo Kim <js1304@gmail.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2016-04-01mm/rmap: batched invalidations should use existing apiNadav Amit3-28/+8
The recently introduced batched invalidations mechanism uses its own mechanism for shootdown. However, it does wrong accounting of interrupts (e.g., inc_irq_stat is called for local invalidations), trace-points (e.g., TLB_REMOTE_SHOOTDOWN for local invalidations) and may break some platforms as it bypasses the invalidation mechanisms of Xen and SGI UV. This patch reuses the existing TLB flushing mechnaisms instead. We use NULL as mm to indicate a global invalidation is required. Fixes 72b252aed506b8 ("mm: send one IPI per CPU to TLB flush all entries after unmapping pages") Signed-off-by: Nadav Amit <namit@vmware.com> Cc: Mel Gorman <mgorman@suse.de> Cc: Rik van Riel <riel@redhat.com> Cc: Dave Hansen <dave.hansen@intel.com> Cc: Ingo Molnar <mingo@kernel.org> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
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