summaryrefslogtreecommitdiff
path: root/include
AgeCommit message (Collapse)Author
2016-11-29Merge tag 'soc-device-match-tag1' into nextUlf Hansson
Merge the immutable soc-device-match-tag1 provided by Geert Uytterhoeven to pull in the new soc_device_match() interface for matching against soc_bus attributes.
2016-11-29mmc: block: delete packed command supportLinus Walleij
I've had it with this code now. The packed command support is a complex hurdle in the MMC/SD block layer, around 500+ lines of code which was introduced in 2013 in commit ce39f9d17c14 ("mmc: support packed write command for eMMC4.5 devices") commit abd9ac144947 ("mmc: add packed command feature of eMMC4.5") ...and since then it has been rotting. The original author of the code has disappeared from the community and the mail address is bouncing. For the code to be exercised the host must flag that it supports packed commands, so in mmc_blk_prep_packed_list() which is called for every single request, the following construction appears: u8 max_packed_rw = 0; if ((rq_data_dir(cur) == WRITE) && mmc_host_packed_wr(card->host)) max_packed_rw = card->ext_csd.max_packed_writes; if (max_packed_rw == 0) goto no_packed; This has the following logical deductions: - Only WRITE commands can really be packed, so the solution is only half-done: we support packed WRITE but not packed READ. The packed command support has not been finalized by supporting reads in three years! - mmc_host_packed_wr() is just a static inline that checks host->caps2 & MMC_CAP2_PACKED_WR. The problem with this is that NO upstream host sets this capability flag! No driver in the kernel is using it, and we can't test it. Packed command may be supported in out-of-tree code, but I doubt it. I doubt that the code is even working anymore due to other refactorings in the MMC block layer, who would notice if patches affecting it broke packed commands? No one. - There is no Device Tree binding or code to mark a host as supporting packed read or write commands, just this flag in caps2, so for sure there are not any DT systems using it either. It has other problems as well: mmc_blk_prep_packed_list() is speculatively picking requests out of the request queue with blk_fetch_request() making the MMC/SD stack harder to convert to the multiqueue block layer. By this we get rid of an obstacle. The way I see it this is just cruft littering the MMC/SD stack. Cc: Namjae Jeon <namjae.jeon@samsung.com> Cc: Maya Erez <qca_merez@qca.qualcomm.com> Acked-by: Jaehoon Chung <jh80.chung@samsung.com> Signed-off-by: Linus Walleij <linus.walleij@linaro.org> Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
2016-11-29mmc: delete is_first_req parameter from pre-request callbackLinus Walleij
The void (*pre_req) callback in the struct mmc_host_ops vtable is passing an argument "is_first_req" indicating whether this is the first request or not. None of the in-kernel users use this parameter: instead, since they all just do variants of dma_map* they use the DMA cookie to indicate whether a pre* callback has already been done for a request when they decide how to handle it. Delete the parameter from the callback and all users, as it is just pointless cruft. Signed-off-by: Linus Walleij <linus.walleij@linaro.org> Acked-by: Jaehoon Chung <jh80.chung@samsung.com> Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
2016-11-29mmc: dw_mmc: use the cookie's enum values for post/pre_req()Jaehoon Chung
This patch removed the meaningless value. Instead, use the cookie's enum values for executing correctly. Signed-off-by: Jaehoon Chung <jh80.chung@samsung.com> Tested-by: Heiko Stuebner <heiko@sntech.de> Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
2016-11-29mmc: core: Add helper to see if a host can be retunedSimon Horman
This is in preparation for restoring saved tuning parameters when resuming the TMIO driver. Signed-off-by: Simon Horman <horms+renesas@verge.net.au> Acked-by: Wolfram Sang <wsa+renesas@sang-engineering.com> Tested-by: Wolfram Sang <wsa+renesas@sang-engineering.com> Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
2016-11-29mmc: tmio-mmc: add support for 32bit data portChris Brandt
For the r7s72100 SOC, the DATA_PORT register was changed to 32-bits wide. Therefore a new flag has been created that will allow 32-bit reads/writes to the DATA_PORT register instead of 16-bit (because 16-bits accesses are not supported). Signed-off-by: Chris Brandt <chris.brandt@renesas.com> Reviewed-by: Wolfram Sang <wsa+renesas@sang-engineering.com> Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
2016-11-29mmc: core: use enum mmc_blk_status properlyLinus Walleij
There were several instances of code using the enum mmc_blk_status by arbitrarily converting it to an int and throwing it around to different functions. This makes the code hard to understand to may give rise to strange errors. Especially the function prototype mmc_start_req() had to be modified to take a pointer to an enum mmc_blk_status and the function pointer .err_check() inside struct mmc_async_req needed to return an enum mmc_blk_status. In every case: instead of assigning the block layer error code to an int, use the enum, also change the signature of all functions actually passing this enum to use the enum. To make it possible to use the enum everywhere applicable, move it to <linux/mmc/core.h> so that all code actually using it can also see it. An interesting case was encountered in the MMC test code which did not return a enum mmc_blk_status at all in the .err_check function supposed to check whether asynchronous requests worked or not: instead it returned a normal -ERROR or even the test frameworks internal error codes. The test code would also pass on enum mmc_blk_status codes as error codes inside the test code instead of converting them to the local RESULT_* codes. I have tried to fix all instances properly and run some tests on the result. Cc: Chunyan Zhang <zhang.chunyan@linaro.org> Cc: Baolin Wang <baolin.wang@linaro.org> Signed-off-by: Linus Walleij <linus.walleij@linaro.org> Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
2016-11-29mmc: core: expose the capability of gpio card detectShawn Lin
Add new helper API mmc_can_gpio_cd for slot-gpio to make host drivers know whether it supports gpio card detect. Signed-off-by: Shawn Lin <shawn.lin@rock-chips.com> Signed-off-by: Jaehoon Chung <jh80.chung@samsung.com> Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
2016-11-29mmc: block: Change MMC_IOC_MAX_BYTESJeonghan Kim
It is used for limitation of buffer size during IOCTL such as FFU. However, eMMC FW size is bigger than (512L*256). (For instance, currently, Samsung eMMC FW size is over 300KB.) So, it needs to increase to execute FFU. Signed-off-by: Jeonghan Kim <jh4u.kim@samsung.com> Acked-by: Jaehoon Chung <jh80.chung@samsung.com> Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
2016-11-27Merge git://git.infradead.org/intel-iommuLinus Torvalds
Pull IOMMU fixes from David Woodhouse: "Two minor fixes. The first fixes the assignment of SR-IOV virtual functions to the correct IOMMU unit, and the second fixes the excessively large (and physically contiguous) PASID tables used with SVM" * git://git.infradead.org/intel-iommu: iommu/vt-d: Fix PASID table allocation iommu/vt-d: Fix IOMMU lookup for SR-IOV Virtual Functions
2016-11-26Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/netLinus Torvalds
Pull networking fixes from David Miller: 1) Fix leak in fsl/fman driver, from Dan Carpenter. 2) Call flow dissector initcall earlier than any networking driver can register and start to use it, from Eric Dumazet. 3) Some dup header fixes from Geliang Tang. 4) TIPC link monitoring compat fix from Jon Paul Maloy. 5) Link changes require EEE re-negotiation in bcm_sf2 driver, from Florian Fainelli. 6) Fix bogus handle ID passed into tfilter_notify_chain(), from Roman Mashak. 7) Fix dump size calculation in rtnl_calcit(), from Zhang Shengju. * git://git.kernel.org/pub/scm/linux/kernel/git/davem/net: (26 commits) tipc: resolve connection flow control compatibility problem mvpp2: use correct size for memset net/mlx5: drop duplicate header delay.h net: ieee802154: drop duplicate header delay.h ibmvnic: drop duplicate header seq_file.h fsl/fman: fix a leak in tgec_free() net: ethtool: don't require CAP_NET_ADMIN for ETHTOOL_GLINKSETTINGS tipc: improve sanity check for received domain records tipc: fix compatibility bug in link monitoring net: ethernet: mvneta: Remove IFF_UNICAST_FLT which is not implemented dwc_eth_qos: drop duplicate headers net sched filters: fix filter handle ID in tfilter_notify_chain() net: dsa: bcm_sf2: Ensure we re-negotiate EEE during after link change bnxt: do not busy-poll when link is down udplite: call proper backlog handlers ipv6: bump genid when the IFA_F_TENTATIVE flag is clear net/mlx4_en: Free netdev resources under state lock net: revert "net: l2tp: Treat NET_XMIT_CN as success in l2tp_eth_dev_xmit" rtnetlink: fix the wrong minimal dump size getting from rtnl_calcit() bnxt_en: Fix a VXLAN vs GENEVE issue ...
2016-11-24Merge branch 'for-upstream' of ↵David S. Miller
git://git.kernel.org/pub/scm/linux/kernel/git/bluetooth/bluetooth Johan Hedberg says: ==================== pull request: bluetooth 2016-11-23 Sorry about the late pull request for 4.9, but we have one more important Bluetooth patch that should make it to the release. It fixes connection creation for Bluetooth LE controllers that do not have a public address (only a random one). Please let me know if there are any issues pulling. Thanks. ==================== Signed-off-by: David S. Miller <davem@davemloft.net>
2016-11-23netdevice.h: fix kernel-doc warningRandy Dunlap
Fix kernel-doc warning in <linux/netdevice.h> (missing ':'): ..//include/linux/netdevice.h:1904: warning: No description found for parameter 'prio_tc_map[TC_BITMASK + 1]' Signed-off-by: Randy Dunlap <rdunlap@infradead.org> Signed-off-by: David S. Miller <davem@davemloft.net>
2016-11-22Bluetooth: Fix using the correct source address typeJohan Hedberg
The hci_get_route() API is used to look up local HCI devices, however so far it has been incapable of dealing with anything else than the public address of HCI devices. This completely breaks with LE-only HCI devices that do not come with a public address, but use a static random address instead. This patch exteds the hci_get_route() API with a src_type parameter that's used for comparing with the right address of each HCI device. Signed-off-by: Johan Hedberg <johan.hedberg@intel.com> Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
2016-11-22sched/autogroup: Do not use autogroup->tg in zombie threadsOleg Nesterov
Exactly because for_each_thread() in autogroup_move_group() can't see it and update its ->sched_task_group before _put() and possibly free(). So the exiting task needs another sched_move_task() before exit_notify() and we need to re-introduce the PF_EXITING (or similar) check removed by the previous change for another reason. Signed-off-by: Oleg Nesterov <oleg@redhat.com> Signed-off-by: Peter Zijlstra (Intel) <peterz@infradead.org> Cc: 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: hartsjc@redhat.com Cc: vbendel@redhat.com Cc: vlovejoy@redhat.com Link: http://lkml.kernel.org/r/20161114184612.GA15968@redhat.com Signed-off-by: Ingo Molnar <mingo@kernel.org>
2016-11-21Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/netLinus Torvalds
Pull networking fixes from David Miller: 1) Clear congestion control state when changing algorithms on an existing socket, from Florian Westphal. 2) Fix register bit values in altr_tse_pcs portion of stmmac driver, from Jia Jie Ho. 3) Fix PTP handling in stammc driver for GMAC4, from Giuseppe CAVALLARO. 4) Fix udplite multicast delivery handling, it ignores the udp_table parameter passed into the lookups, from Pablo Neira Ayuso. 5) Synchronize the space estimated by rtnl_vfinfo_size and the space actually used by rtnl_fill_vfinfo. From Sabrina Dubroca. 6) Fix memory leak in fib_info when splitting nodes, from Alexander Duyck. 7) If a driver does a napi_hash_del() explicitily and not via netif_napi_del(), it must perform RCU synchronization as needed. Fix this in virtio-net and bnxt drivers, from Eric Dumazet. 8) Likewise, it is not necessary to invoke napi_hash_del() is we are also doing neif_napi_del() in the same code path. Remove such calls from be2net and cxgb4 drivers, also from Eric Dumazet. 9) Don't allocate an ID in peernet2id_alloc() if the netns is dead, from WANG Cong. 10) Fix OF node and device struct leaks in of_mdio, from Johan Hovold. 11) We cannot cache routes in ip6_tunnel when using inherited traffic classes, from Paolo Abeni. 12) Fix several crashes and leaks in cpsw driver, from Johan Hovold. 13) Splice operations cannot use freezable blocking calls in AF_UNIX, from WANG Cong. 14) Link dump filtering by master device and kind support added an error in loop index updates during the dump if we actually do filter, fix from Zhang Shengju. * git://git.kernel.org/pub/scm/linux/kernel/git/davem/net: (59 commits) tcp: zero ca_priv area when switching cc algorithms net: l2tp: Treat NET_XMIT_CN as success in l2tp_eth_dev_xmit ethernet: stmmac: make DWMAC_STM32 depend on it's associated SoC tipc: eliminate obsolete socket locking policy description rtnl: fix the loop index update error in rtnl_dump_ifinfo() l2tp: fix racy SOCK_ZAPPED flag check in l2tp_ip{,6}_bind() net: macb: add check for dma mapping error in start_xmit() rtnetlink: fix FDB size computation netns: fix get_net_ns_by_fd(int pid) typo af_unix: conditionally use freezable blocking calls in read net: ethernet: ti: cpsw: fix fixed-link phy probe deferral net: ethernet: ti: cpsw: add missing sanity check net: ethernet: ti: cpsw: fix secondary-emac probe error path net: ethernet: ti: cpsw: fix of_node and phydev leaks net: ethernet: ti: cpsw: fix deferred probe net: ethernet: ti: cpsw: fix mdio device reference leak net: ethernet: ti: cpsw: fix bad register access in probe error path net: sky2: Fix shutdown crash cfg80211: limit scan results cache size net sched filters: pass netlink message flags in event notification ...
2016-11-19Merge tag 'for-linus' of git://git.kernel.org/pub/scm/virt/kvm/kvmLinus Torvalds
Pull KVM fixes from Radim Krčmář: "ARM: - Fix handling of the 32bit cycle counter - Fix cycle counter filtering x86: - Fix a race leading to double unregistering of user notifiers - Amend oversight in kvm_arch_set_irq that turned Hyper-V code dead - Use SRCU around kvm_lapic_set_vapic_addr - Avoid recursive flushing of asynchronous page faults - Do not rely on deferred update in KVM_GET_CLOCK, which fixes #GP - Let userspace know that KVM_GET_CLOCK is useful with master clock; 4.9 changed the return value to better match the guest clock, but didn't provide means to let guests take advantage of it" * tag 'for-linus' of git://git.kernel.org/pub/scm/virt/kvm/kvm: kvm: x86: merge kvm_arch_set_irq and kvm_arch_set_irq_inatomic KVM: x86: fix missed SRCU usage in kvm_lapic_set_vapic_addr KVM: async_pf: avoid recursive flushing of work items kvm: kvmclock: let KVM_GET_CLOCK return whether the master clock is in use KVM: Disable irq while unregistering user notifier KVM: x86: do not go through vcpu in __get_kvmclock_ns KVM: arm64: Fix the issues when guest PMCCFILTR is configured arm64: KVM: pmu: Fix AArch32 cycle counter access
2016-11-19kvm: kvmclock: let KVM_GET_CLOCK return whether the master clock is in usePaolo Bonzini
Userspace can read the exact value of kvmclock by reading the TSC and fetching the timekeeping parameters out of guest memory. This however is brittle and not necessary anymore with KVM 4.11. Provide a mechanism that lets userspace know if the new KVM_GET_CLOCK semantics are in effect, and---since we are at it---if the clock is stable across all VCPUs. Cc: Radim Krčmář <rkrcmar@redhat.com> Cc: Marcelo Tosatti <mtosatti@redhat.com> Signed-off-by: Paolo Bonzini <pbonzini@redhat.com> Signed-off-by: Radim Krčmář <rkrcmar@redhat.com>
2016-11-19iommu/vt-d: Fix PASID table allocationDavid Woodhouse
Somehow I ended up with an off-by-three error in calculating the size of the PASID and PASID State tables, which triggers allocations failures as those tables unfortunately have to be physically contiguous. In fact, even the *correct* maximum size of 8MiB is problematic and is wont to lead to allocation failures. Since I have extracted a promise that this *will* be fixed in hardware, I'm happy to limit it on the current hardware to a maximum of 0x20000 PASIDs, which gives us 1MiB tables — still not ideal, but better than before. Reported by Mika Kuoppala <mika.kuoppala@linux.intel.com> and also by Xunlei Pang <xlpang@redhat.com> who submitted a simpler patch to fix only the allocation (and not the free) to the "correct" limit... which was still problematic. Signed-off-by: David Woodhouse <dwmw2@infradead.org> Cc: stable@vger.kernel.org
2016-11-18Merge tag 'acpi-4.9-rc6' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm Pull ACPI fixes from Rafael Wysocki: "They fix an ACPI thermal management regression introduced by a recent FADT handling cleanup, an ACPI tools build issue introduced by a recent ACPICA commit and a PCC mailbox initialization bug causing lockdep to complain loudly. Specifics: - Revert a recent ACPICA cleanup that attempted to get rid of all FADT version 2 legacy, but broke ACPI thermal management on at least one system (Rafael Wysocki). - Fix cross-compiled builds of ACPI tools that stopped working after a recent cleanup related to the handling of header files in ACPICA (Lv Zheng). - Fix a locking issue in the PCC channel initialization code that invokes devm_request_irq() under a spinlock (among other things) and causes lockdep to complain (Hoan Tran)" * tag 'acpi-4.9-rc6' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm: tools/power/acpi: Remove direct kernel source include reference mailbox: PCC: Fix lockdep warning when request PCC channel Revert "ACPICA: FADT support cleanup"
2016-11-18Merge tag 'nfsd-4.9-2' of git://linux-nfs.org/~bfields/linuxLinus Torvalds
Pull nfsd bugfix from Bruce Fields: "Just one fix for an NFS/RDMA crash" * tag 'nfsd-4.9-2' of git://linux-nfs.org/~bfields/linux: sunrpc: svc_age_temp_xprts_now should not call setsockopt non-tcp transports
2016-11-18Merge branches 'acpica-fixes', 'acpi-cppc-fixes' and 'acpi-tools-fixes'Rafael J. Wysocki
* acpica-fixes: Revert "ACPICA: FADT support cleanup" * acpi-cppc-fixes: mailbox: PCC: Fix lockdep warning when request PCC channel * acpi-tools-fixes: tools/power/acpi: Remove direct kernel source include reference
2016-11-18netns: fix get_net_ns_by_fd(int pid) typoStefan Hajnoczi
The argument to get_net_ns_by_fd() is a /proc/$PID/ns/net file descriptor not a pid. Fix the typo. Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com> Acked-by: Rami Rosen <roszenrami@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2016-11-17mremap: fix race between mremap() and page cleanningAaron Lu
Prior to 3.15, there was a race between zap_pte_range() and page_mkclean() where writes to a page could be lost. Dave Hansen discovered by inspection that there is a similar race between move_ptes() and page_mkclean(). We've been able to reproduce the issue by enlarging the race window with a msleep(), but have not been able to hit it without modifying the code. So, we think it's a real issue, but is difficult or impossible to hit in practice. The zap_pte_range() issue is fixed by commit 1cf35d47712d("mm: split 'tlb_flush_mmu()' into tlb flushing and memory freeing parts"). And this patch is to fix the race between page_mkclean() and mremap(). Here is one possible way to hit the race: suppose a process mmapped a file with READ | WRITE and SHARED, it has two threads and they are bound to 2 different CPUs, e.g. CPU1 and CPU2. mmap returned X, then thread 1 did a write to addr X so that CPU1 now has a writable TLB for addr X on it. Thread 2 starts mremaping from addr X to Y while thread 1 cleaned the page and then did another write to the old addr X again. The 2nd write from thread 1 could succeed but the value will get lost. thread 1 thread 2 (bound to CPU1) (bound to CPU2) 1: write 1 to addr X to get a writeable TLB on this CPU 2: mremap starts 3: move_ptes emptied PTE for addr X and setup new PTE for addr Y and then dropped PTL for X and Y 4: page laundering for N by doing fadvise FADV_DONTNEED. When done, pageframe N is deemed clean. 5: *write 2 to addr X 6: tlb flush for addr X 7: munmap (Y, pagesize) to make the page unmapped 8: fadvise with FADV_DONTNEED again to kick the page off the pagecache 9: pread the page from file to verify the value. If 1 is there, it means we have lost the written 2. *the write may or may not cause segmentation fault, it depends on if the TLB is still on the CPU. Please note that this is only one specific way of how the race could occur, it didn't mean that the race could only occur in exact the above config, e.g. more than 2 threads could be involved and fadvise() could be done in another thread, etc. For anonymous pages, they could race between mremap() and page reclaim: THP: a huge PMD is moved by mremap to a new huge PMD, then the new huge PMD gets unmapped/splitted/pagedout before the flush tlb happened for the old huge PMD in move_page_tables() and we could still write data to it. The normal anonymous page has similar situation. To fix this, check for any dirty PTE in move_ptes()/move_huge_pmd() and if any, did the flush before dropping the PTL. If we did the flush for every move_ptes()/move_huge_pmd() call then we do not need to do the flush in move_pages_tables() for the whole range. But if we didn't, we still need to do the whole range flush. Alternatively, we can track which part of the range is flushed in move_ptes()/move_huge_pmd() and which didn't to avoid flushing the whole range in move_page_tables(). But that would require multiple tlb flushes for the different sub-ranges and should be less efficient than the single whole range flush. KBuild test on my Sandybridge desktop doesn't show any noticeable change. v4.9-rc4: real 5m14.048s user 32m19.800s sys 4m50.320s With this commit: real 5m13.888s user 32m19.330s sys 4m51.200s Reported-by: Dave Hansen <dave.hansen@intel.com> Signed-off-by: Aaron Lu <aaron.lu@intel.com> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2016-11-16tools/power/acpi: Remove direct kernel source include referenceLv Zheng
Avoid breaking cross-compiled ACPI tools builds by rearranging the handling of kernel header files. This patch also contains OUTPUT/srctree cleanups in order to make above fix working for various build environments. Fixes: e323c02dee59 (ACPICA: MSVC9: Fix <sys/stat.h> inclusion order issue) Reported-and-tested-by: Yisheng Xie <xieyisheng1@huawei.com> Reported-by: Andy Shevchenko <andy.shevchenko@gmail.com> Signed-off-by: Lv Zheng <lv.zheng@intel.com> [ rjw: Changelog ] Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
2016-11-16ipv4: Restore fib_trie_flush_external function and fix call orderingAlexander Duyck
The patch that removed the FIB offload infrastructure was a bit too aggressive and also removed code needed to clean up us splitting the table if additional rules were added. Specifically the function fib_trie_flush_external was called at the end of a new rule being added to flush the foreign trie entries from the main trie. I updated the code so that we only call fib_trie_flush_external on the main table so that we flush the entries for local from main. This way we don't call it for every rule change which is what was happening previously. Fixes: 347e3b28c1ba2 ("switchdev: remove FIB offload infrastructure") Reported-by: Eric Dumazet <edumazet@google.com> Cc: Jiri Pirko <jiri@mellanox.com> Signed-off-by: Alexander Duyck <alexander.h.duyck@intel.com> Acked-by: Eric Dumazet <edumazet@google.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2016-11-16bpf: fix range arithmetic for bpf map accessJosef Bacik
I made some invalid assumptions with BPF_AND and BPF_MOD that could result in invalid accesses to bpf map entries. Fix this up by doing a few things 1) Kill BPF_MOD support. This doesn't actually get used by the compiler in real life and just adds extra complexity. 2) Fix the logic for BPF_AND, don't allow AND of negative numbers and set the minimum value to 0 for positive AND's. 3) Don't do operations on the ranges if they are set to the limits, as they are by definition undefined, and allowing arithmetic operations on those values could make them appear valid when they really aren't. This fixes the testcase provided by Jann as well as a few other theoretical problems. Reported-by: Jann Horn <jannh@google.com> Signed-off-by: Josef Bacik <jbacik@fb.com> Acked-by: Alexei Starovoitov <ast@kernel.org> Signed-off-by: David S. Miller <davem@davemloft.net>
2016-11-15gro_cells: mark napi struct as not busy poll candidatesEric Dumazet
Rolf Neugebauer reported very long delays at netns dismantle. Eric W. Biederman was kind enough to look at this problem and noticed synchronize_net() occurring from netif_napi_del() that was added in linux-4.5 Busy polling makes no sense for tunnels NAPI. If busy poll is used for sessions over tunnels, the poller will need to poll the physical device queue anyway. netif_tx_napi_add() could be used here, but function name is misleading, and renaming it is not stable material, so set NAPI_STATE_NO_BUSY_POLL bit directly. This will avoid inserting gro_cells napi structures in napi_hash[] and avoid the problematic synchronize_net() (per possible cpu) that Rolf reported. Fixes: 93d05d4a320c ("net: provide generic busy polling to all NAPI drivers") Signed-off-by: Eric Dumazet <edumazet@google.com> Reported-by: Rolf Neugebauer <rolf.neugebauer@docker.com> Reported-by: Eric W. Biederman <ebiederm@xmission.com> Acked-by: Cong Wang <xiyou.wangcong@gmail.com> Tested-by: Rolf Neugebauer <rolf.neugebauer@docker.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2016-11-14Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/netLinus Torvalds
Pull networking fixes from David Miller: 1) Fix off by one wrt. indexing when dumping /proc/net/route entries, from Alexander Duyck. 2) Fix lockdep splats in iwlwifi, from Johannes Berg. 3) Cure panic when inserting certain netfilter rules when NFT_SET_HASH is disabled, from Liping Zhang. 4) Memory leak when nft_expr_clone() fails, also from Liping Zhang. 5) Disable UFO when path will apply IPSEC tranformations, from Jakub Sitnicki. 6) Don't bogusly double cwnd in dctcp module, from Florian Westphal. 7) skb_checksum_help() should never actually use the value "0" for the resulting checksum, that has a special meaning, use CSUM_MANGLED_0 instead. From Eric Dumazet. 8) Per-tx/rx queue statistic strings are wrong in qed driver, fix from Yuval MIntz. 9) Fix SCTP reference counting of associations and transports in sctp_diag. From Xin Long. 10) When we hit ip6tunnel_xmit() we could have come from an ipv4 path in a previous layer or similar, so explicitly clear the ipv6 control block in the skb. From Eli Cooper. 11) Fix bogus sleeping inside of inet_wait_for_connect(), from WANG Cong. 12) Correct deivce ID of T6 adapter in cxgb4 driver, from Hariprasad Shenai. 13) Fix potential access past the end of the skb page frag array in tcp_sendmsg(). From Eric Dumazet. 14) 'skb' can legitimately be NULL in inet{,6}_exact_dif_match(). Fix from David Ahern. 15) Don't return an error in tcp_sendmsg() if we wronte any bytes successfully, from Eric Dumazet. 16) Extraneous unlocks in netlink_diag_dump(), we removed the locking but forgot to purge these unlock calls. From Eric Dumazet. 17) Fix memory leak in error path of __genl_register_family(). We leak the attrbuf, from WANG Cong. 18) cgroupstats netlink policy table is mis-sized, from WANG Cong. 19) Several XDP bug fixes in mlx5, from Saeed Mahameed. 20) Fix several device refcount leaks in network drivers, from Johan Hovold. 21) icmp6_send() should use skb dst device not skb->dev to determine L3 routing domain. From David Ahern. 22) ip_vs_genl_family sets maxattr incorrectly, from WANG Cong. 23) We leak new macvlan port in some cases of maclan_common_netlink() errors. Fix from Gao Feng. 24) Similar to the icmp6_send() fix, icmp_route_lookup() should determine L3 routing domain using skb_dst(skb)->dev not skb->dev. Also from David Ahern. 25) Several fixes for route offloading and FIB notification handling in mlxsw driver, from Jiri Pirko. 26) Properly cap __skb_flow_dissect()'s return value, from Eric Dumazet. 27) Fix long standing regression in ipv4 redirect handling, wrt. validating the new neighbour's reachability. From Stephen Suryaputra Lin. 28) If sk_filter() trims the packet excessively, handle it reasonably in tcp input instead of exploding. From Eric Dumazet. 29) Fix handling of napi hash state when copying channels in sfc driver, from Bert Kenward. * git://git.kernel.org/pub/scm/linux/kernel/git/davem/net: (121 commits) mlxsw: spectrum_router: Flush FIB tables during fini net: stmmac: Fix lack of link transition for fixed PHYs sctp: change sk state only when it has assocs in sctp_shutdown bnx2: Wait for in-flight DMA to complete at probe stage Revert "bnx2: Reset device during driver initialization" ps3_gelic: fix spelling mistake in debug message net: ethernet: ixp4xx_eth: fix spelling mistake in debug message ibmvnic: Fix size of debugfs name buffer ibmvnic: Unmap ibmvnic_statistics structure sfc: clear napi_hash state when copying channels mlxsw: spectrum_router: Correctly dump neighbour activity mlxsw: spectrum: Fix refcount bug on span entries bnxt_en: Fix VF virtual link state. bnxt_en: Fix ring arithmetic in bnxt_setup_tc(). Revert "include/uapi/linux/atm_zatm.h: include linux/time.h" tcp: take care of truncations done by sk_filter() ipv4: use new_gw for redirect neigh lookup r8152: Fix error path in open function net: bpqether.h: remove if_ether.h guard net: __skb_flow_dissect() must cap its return value ...
2016-11-14Revert "ACPICA: FADT support cleanup"Rafael J. Wysocki
Pavel Machek reports that commit 6ea8c546f365 (ACPICA: FADT support cleanup) breaks thermal management on his Thinkpad X60 and T40p, so revert it. Link: https://bugzilla.kernel.org/show_bug.cgi?id=187311 Fixes: 6ea8c546f365 (ACPICA: FADT support cleanup) Reported-by: Pavel Machek <pavel@ucw.cz> Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
2016-11-14sunrpc: svc_age_temp_xprts_now should not call setsockopt non-tcp transportsScott Mayhew
This fixes the following panic that can occur with NFSoRDMA. general protection fault: 0000 [#1] SMP Modules linked in: rpcrdma ib_isert iscsi_target_mod ib_iser libiscsi scsi_transport_iscsi ib_srpt target_core_mod ib_srp scsi_transport_srp scsi_tgt ib_ipoib rdma_ucm ib_ucm ib_uverbs ib_umad rdma_cm ib_cm iw_cm mlx5_ib ib_core intel_powerclamp coretemp kvm_intel kvm sg ioatdma ipmi_devintf ipmi_ssif dcdbas iTCO_wdt iTCO_vendor_support pcspkr irqbypass sb_edac shpchp dca crc32_pclmul ghash_clmulni_intel edac_core lpc_ich aesni_intel lrw gf128mul glue_helper ablk_helper mei_me mei ipmi_si cryptd wmi ipmi_msghandler acpi_pad acpi_power_meter nfsd auth_rpcgss nfs_acl lockd grace sunrpc ip_tables xfs libcrc32c sd_mod crc_t10dif crct10dif_generic mgag200 i2c_algo_bit drm_kms_helper syscopyarea sysfillrect sysimgblt ahci fb_sys_fops ttm libahci mlx5_core tg3 crct10dif_pclmul drm crct10dif_common ptp i2c_core libata crc32c_intel pps_core fjes dm_mirror dm_region_hash dm_log dm_mod CPU: 1 PID: 120 Comm: kworker/1:1 Not tainted 3.10.0-514.el7.x86_64 #1 Hardware name: Dell Inc. PowerEdge R320/0KM5PX, BIOS 2.4.2 01/29/2015 Workqueue: events check_lifetime task: ffff88031f506dd0 ti: ffff88031f584000 task.ti: ffff88031f584000 RIP: 0010:[<ffffffff8168d847>] [<ffffffff8168d847>] _raw_spin_lock_bh+0x17/0x50 RSP: 0018:ffff88031f587ba8 EFLAGS: 00010206 RAX: 0000000000020000 RBX: 20041fac02080072 RCX: ffff88031f587fd8 RDX: 0000000000000000 RSI: 0000000000000000 RDI: 20041fac02080072 RBP: ffff88031f587bb0 R08: 0000000000000008 R09: ffffffff8155be77 R10: ffff880322a59b00 R11: ffffea000bf39f00 R12: 20041fac02080072 R13: 000000000000000d R14: ffff8800c4fbd800 R15: 0000000000000001 FS: 0000000000000000(0000) GS:ffff880322a40000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007f3c52d4547e CR3: 00000000019ba000 CR4: 00000000001407e0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000ffff0ff0 DR7: 0000000000000400 Stack: 20041fac02080002 ffff88031f587bd0 ffffffff81557830 20041fac02080002 ffff88031f587c78 ffff88031f587c40 ffffffff8155ae08 000000010157df32 0000000800000001 ffff88031f587c20 ffffffff81096acb ffffffff81aa37d0 Call Trace: [<ffffffff81557830>] lock_sock_nested+0x20/0x50 [<ffffffff8155ae08>] sock_setsockopt+0x78/0x940 [<ffffffff81096acb>] ? lock_timer_base.isra.33+0x2b/0x50 [<ffffffff8155397d>] kernel_setsockopt+0x4d/0x50 [<ffffffffa0386284>] svc_age_temp_xprts_now+0x174/0x1e0 [sunrpc] [<ffffffffa03b681d>] nfsd_inetaddr_event+0x9d/0xd0 [nfsd] [<ffffffff81691ebc>] notifier_call_chain+0x4c/0x70 [<ffffffff810b687d>] __blocking_notifier_call_chain+0x4d/0x70 [<ffffffff810b68b6>] blocking_notifier_call_chain+0x16/0x20 [<ffffffff815e8538>] __inet_del_ifa+0x168/0x2d0 [<ffffffff815e8cef>] check_lifetime+0x25f/0x270 [<ffffffff810a7f3b>] process_one_work+0x17b/0x470 [<ffffffff810a8d76>] worker_thread+0x126/0x410 [<ffffffff810a8c50>] ? rescuer_thread+0x460/0x460 [<ffffffff810b052f>] kthread+0xcf/0xe0 [<ffffffff810b0460>] ? kthread_create_on_node+0x140/0x140 [<ffffffff81696418>] ret_from_fork+0x58/0x90 [<ffffffff810b0460>] ? kthread_create_on_node+0x140/0x140 Code: ca 75 f1 5d c3 0f 1f 80 00 00 00 00 eb d9 66 0f 1f 44 00 00 0f 1f 44 00 00 55 48 89 e5 53 48 89 fb e8 7e 04 a0 ff b8 00 00 02 00 <f0> 0f c1 03 89 c2 c1 ea 10 66 39 c2 75 03 5b 5d c3 83 e2 fe 0f RIP [<ffffffff8168d847>] _raw_spin_lock_bh+0x17/0x50 RSP <ffff88031f587ba8> Signed-off-by: Scott Mayhew <smayhew@redhat.com> Fixes: c3d4879e ("sunrpc: Add a function to close temporary transports immediately") Reviewed-by: Chuck Lever <chuck.lever@oracle.com> Signed-off-by: J. Bruce Fields <bfields@redhat.com>
2016-11-13Merge tag 'usb-4.9-rc5' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb Pull USB / PHY fixes from Greg KH: "Here are a number of small USB and PHY driver fixes for 4.9-rc5 Nothing major, just small fixes for reported issues, all of these have been in linux-next for a while with no reported issues" * tag 'usb-4.9-rc5' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb: USB: cdc-acm: fix TIOCMIWAIT cdc-acm: fix uninitialized variable drivers/usb: Skip auto handoff for TI and RENESAS usb controllers usb: musb: remove duplicated actions usb: musb: da8xx: Don't print phy error on -EPROBE_DEFER phy: sun4i: check PMU presence when poking unknown bit of pmu phy-rockchip-pcie: remove deassert of phy_rst from exit callback phy: da8xx-usb: rename the ohci device to ohci-da8xx phy: Add reset callback for not generic phy uwb: fix device reference leaks usb: gadget: u_ether: remove interrupt throttling usb: dwc3: st: add missing <linux/pinctrl/consumer.h> include usb: dwc3: Fix error handling for core init
2016-11-13Revert "include/uapi/linux/atm_zatm.h: include linux/time.h"Mike Frysinger
This reverts commit cf00713a655d ("include/uapi/linux/atm_zatm.h: include linux/time.h"). This attempted to fix userspace breakage that no longer existed when the patch was merged. Almost one year earlier, commit 70ba07b675b5 ("atm: remove 'struct zatm_t_hist'") deleted the struct in question. After this patch was merged, we now have to deal with people being unable to include this header in conjunction with standard C library headers like stdlib.h (which linux-atm does). Example breakage: x86_64-pc-linux-gnu-gcc -DHAVE_CONFIG_H -I. -I../.. -I./../q2931 -I./../saal \ -I. -DCPPFLAGS_TEST -I../../src/include -O2 -march=native -pipe -g \ -frecord-gcc-switches -freport-bug -Wimplicit-function-declaration \ -Wnonnull -Wstrict-aliasing -Wparentheses -Warray-bounds \ -Wfree-nonheap-object -Wreturn-local-addr -fno-strict-aliasing -Wall \ -Wshadow -Wpointer-arith -Wwrite-strings -Wstrict-prototypes -c zntune.c In file included from /usr/include/linux/atm_zatm.h:17:0, from zntune.c:17: /usr/include/linux/time.h:9:8: error: redefinition of ‘struct timespec’ struct timespec { ^ In file included from /usr/include/sys/select.h:43:0, from /usr/include/sys/types.h:219, from /usr/include/stdlib.h:314, from zntune.c:9: /usr/include/time.h:120:8: note: originally defined here struct timespec ^ Signed-off-by: Mike Frysinger <vapier@gentoo.org> Acked-by: Mikko Rapeli <mikko.rapeli@iki.fi> Signed-off-by: David S. Miller <davem@davemloft.net>
2016-11-13tcp: take care of truncations done by sk_filter()Eric Dumazet
With syzkaller help, Marco Grassi found a bug in TCP stack, crashing in tcp_collapse() Root cause is that sk_filter() can truncate the incoming skb, but TCP stack was not really expecting this to happen. It probably was expecting a simple DROP or ACCEPT behavior. We first need to make sure no part of TCP header could be removed. Then we need to adjust TCP_SKB_CB(skb)->end_seq Many thanks to syzkaller team and Marco for giving us a reproducer. Signed-off-by: Eric Dumazet <edumazet@google.com> Reported-by: Marco Grassi <marco.gra@gmail.com> Reported-by: Vladis Dronov <vdronov@redhat.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2016-11-13net: bpqether.h: remove if_ether.h guardBaruch Siach
__LINUX_IF_ETHER_H is not defined anywhere, and if_ether.h can keep itself from double inclusion, though it uses a single underscore prefix. Signed-off-by: Baruch Siach <baruch@tkos.co.il> Signed-off-by: David S. Miller <davem@davemloft.net>
2016-11-12bpf: Fix bpf_redirect to an ipip/ip6tnl devMartin KaFai Lau
If the bpf program calls bpf_redirect(dev, 0) and dev is an ipip/ip6tnl, it currently includes the mac header. e.g. If dev is ipip, the end result is IP-EthHdr-IP instead of IP-IP. The fix is to pull the mac header. At ingress, skb_postpull_rcsum() is not needed because the ethhdr should have been pulled once already and then got pushed back just before calling the bpf_prog. At egress, this patch calls skb_postpull_rcsum(). If bpf_redirect(dev, BPF_F_INGRESS) is called, it also fails now because it calls dev_forward_skb() which eventually calls eth_type_trans(skb, dev). The eth_type_trans() will set skb->type = PACKET_OTHERHOST because the mac address does not match the redirecting dev->dev_addr. The PACKET_OTHERHOST will eventually cause the ip_rcv() errors out. To fix this, ____dev_forward_skb() is added. Joint work with Daniel Borkmann. Fixes: cfc7381b3002 ("ip_tunnel: add collect_md mode to IPIP tunnel") Fixes: 8d79266bc48c ("ip6_tunnel: add collect_md mode to IPv6 tunnels") Acked-by: Daniel Borkmann <daniel@iogearbox.net> Acked-by: Alexei Starovoitov <ast@fb.com> Signed-off-by: Martin KaFai Lau <kafai@fb.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2016-11-11Merge tag 'acpi-4.9-rc5' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm Pull ACPI fix from Rafael Wysocki: "Fix a recent regression in the 8250_dw serial driver introduced by adding a quirk for the APM X-Gene SoC to it which uncovered an issue related to the handling of built-in device properties in the core ACPI device enumeration code (Heikki Krogerus)" * tag 'acpi-4.9-rc5' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm: ACPI / platform: Add support for build-in properties
2016-11-11Merge branch 'device-properties'Rafael J. Wysocki
* device-properties: ACPI / platform: Add support for build-in properties
2016-11-11Merge branch 'akpm' (patches from Andrew)Linus Torvalds
Merge misc fixes from Andrew Morton: "15 fixes" * emailed patches from Andrew Morton <akpm@linux-foundation.org>: lib/stackdepot: export save/fetch stack for drivers mm: kmemleak: scan .data.ro_after_init memcg: prevent memcg caches to be both OFF_SLAB & OBJFREELIST_SLAB coredump: fix unfreezable coredumping task mm/filemap: don't allow partially uptodate page for pipes mm/hugetlb: fix huge page reservation leak in private mapping error paths ocfs2: fix not enough credit panic Revert "console: don't prefer first registered if DT specifies stdout-path" mm: hwpoison: fix thp split handling in memory_failure() swapfile: fix memory corruption via malformed swapfile mm/cma.c: check the max limit for cma allocation scripts/bloat-o-meter: fix SIGPIPE shmem: fix pageflags after swapping DMA32 object mm, frontswap: make sure allocated frontswap map is assigned mm: remove extra newline from allocation stall warning
2016-11-11Merge branch 'for-linus' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs Pull VFS fixes from Al Viro: "Christoph's and Jan's aio fixes, fixup for generic_file_splice_read (removal of pointless detritus that actually breaks it when used for gfs2 ->splice_read()) and fixup for generic_file_read_iter() interaction with ITER_PIPE destinations." * 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs: splice: remove detritus from generic_file_splice_read() mm/filemap: don't allow partially uptodate page for pipes aio: fix freeze protection of aio writes fs: remove aio_run_iocb fs: remove the never implemented aio_fsync file operation aio: hold an extra file reference over AIO read/write operations
2016-11-11Merge tag 'ceph-for-4.9-rc5' of git://github.com/ceph/ceph-clientLinus Torvalds
Pull Ceph fixes from Ilya Dryomov: "Ceph's ->read_iter() implementation is incompatible with the new generic_file_splice_read() code that went into -rc1. Switch to the less efficient default_file_splice_read() for now; the proper fix is being held for 4.10. We also have a fix for a 4.8 regression and a trival libceph fixup" * tag 'ceph-for-4.9-rc5' of git://github.com/ceph/ceph-client: libceph: initialize last_linger_id with a large integer libceph: fix legacy layout decode with pool 0 ceph: use default file splice read callback
2016-11-11mm: kmemleak: scan .data.ro_after_initJakub Kicinski
Limit the number of kmemleak false positives by including .data.ro_after_init in memory scanning. To achieve this we need to add symbols for start and end of the section to the linker scripts. The problem was been uncovered by commit 56989f6d8568 ("genetlink: mark families as __ro_after_init"). Link: http://lkml.kernel.org/r/1478274173-15218-1-git-send-email-jakub.kicinski@netronome.com Reviewed-by: Catalin Marinas <catalin.marinas@arm.com> Signed-off-by: Jakub Kicinski <jakub.kicinski@netronome.com> Cc: Arnd Bergmann <arnd@arndb.de> Cc: Cong Wang <xiyou.wangcong@gmail.com> Cc: Johannes Berg <johannes@sipsolutions.net> Cc: Martin Schwidefsky <schwidefsky@de.ibm.com> Cc: Heiko Carstens <heiko.carstens@de.ibm.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2016-11-11Revert "console: don't prefer first registered if DT specifies stdout-path"Hans de Goede
This reverts commit 05fd007e4629 ("console: don't prefer first registered if DT specifies stdout-path"). The reverted commit changes existing behavior on which many ARM boards rely. Many ARM small-board-computers, like e.g. the Raspberry Pi have both a video output and a serial console. Depending on whether the user is using the device as a more regular computer; or as a headless device we need to have the console on either one or the other. Many users rely on the kernel behavior of the console being present on both outputs, before the reverted commit the console setup with no console= kernel arguments on an ARM board which sets stdout-path in dt would look like this: [root@localhost ~]# cat /proc/consoles ttyS0 -W- (EC p a) 4:64 tty0 -WU (E p ) 4:1 Where as after the reverted commit, it looks like this: [root@localhost ~]# cat /proc/consoles ttyS0 -W- (EC p a) 4:64 This commit reverts commit 05fd007e4629 ("console: don't prefer first registered if DT specifies stdout-path") restoring the original behavior. Fixes: 05fd007e4629 ("console: don't prefer first registered if DT specifies stdout-path") Link: http://lkml.kernel.org/r/20161104121135.4780-2-hdegoede@redhat.com Signed-off-by: Hans de Goede <hdegoede@redhat.com> Cc: Paul Burton <paul.burton@imgtec.com> Cc: Rob Herring <robh+dt@kernel.org> Cc: Frank Rowand <frowand.list@gmail.com> Cc: Thorsten Leemhuis <regressions@leemhuis.info> Cc: Greg Kroah-Hartman <gregkh@linuxfoundation.org> Cc: Tejun Heo <tj@kernel.org> Cc: <stable@vger.kernel.org> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2016-11-11mm, frontswap: make sure allocated frontswap map is assignedVlastimil Babka
Christian Borntraeger reports: With commit 8ea1d2a1985a ("mm, frontswap: convert frontswap_enabled to static key") kmemleak complains about a memory leak in swapon unreferenced object 0x3e09ba56000 (size 32112640): comm "swapon", pid 7852, jiffies 4294968787 (age 1490.770s) hex dump (first 32 bytes): 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................ 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................ backtrace: __vmalloc_node_range+0x194/0x2d8 vzalloc+0x58/0x68 SyS_swapon+0xd60/0x12f8 system_call+0xd6/0x270 Turns out kmemleak is right. We now allocate the frontswap map depending on the kernel config (and no longer on the enablement) swapfile.c: [...] if (IS_ENABLED(CONFIG_FRONTSWAP)) frontswap_map = vzalloc(BITS_TO_LONGS(maxpages) * sizeof(long)); but later on this is passed along --> enable_swap_info(p, prio, swap_map, cluster_info, frontswap_map); and ignored if frontswap is disabled --> frontswap_init(p->type, frontswap_map); static inline void frontswap_init(unsigned type, unsigned long *map) { if (frontswap_enabled()) __frontswap_init(type, map); } Thing is, that frontswap map is never freed. The leakage is relatively not that bad, because swapon is an infrequent and privileged operation. However, if the first frontswap backend is registered after a swap type has been already enabled, it will WARN_ON in frontswap_register_ops() and frontswap will not be available for the swap type. Fix this by making sure the map is assigned by frontswap_init() as long as CONFIG_FRONTSWAP is enabled. Fixes: 8ea1d2a1985a ("mm, frontswap: convert frontswap_enabled to static key") Link: http://lkml.kernel.org/r/20161026134220.2566-1-vbabka@suse.cz Signed-off-by: Vlastimil Babka <vbabka@suse.cz> Reported-by: Christian Borntraeger <borntraeger@de.ibm.com> Cc: Konrad Rzeszutek Wilk <konrad.wilk@oracle.com> Cc: Boris Ostrovsky <boris.ostrovsky@oracle.com> Cc: David Vrabel <david.vrabel@citrix.com> Cc: Juergen Gross <jgross@suse.com> Cc: "Kirill A. Shutemov" <kirill.shutemov@linux.intel.com> Cc: <stable@vger.kernel.org> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2016-11-10libceph: initialize last_linger_id with a large integerIlya Dryomov
osdc->last_linger_id is a counter for lreq->linger_id, which is used for watch cookies. Starting with a large integer should ease the task of telling apart kernel and userspace clients. Signed-off-by: Ilya Dryomov <idryomov@gmail.com>
2016-11-10base: soc: Provide a dummy implementation of soc_device_match()Geert Uytterhoeven
Provide a dummy implementation of soc_device_match(), to allow compiling drivers that may be used on SoCs both with and without CONFIG_SOC_BUS, and for compile testing. Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be>
2016-11-10base: soc: Introduce soc_device_match() interfaceArnd Bergmann
We keep running into cases where device drivers want to know the exact version of the a SoC they are currently running on. In the past, this has usually been done through a vendor specific API that can be called by a driver, or by directly accessing some kind of version register that is not part of the device itself but that belongs to a global register area of the chip. Common reasons for doing this include: - A machine is not using devicetree or similar for passing data about on-chip devices, but just announces their presence using boot-time platform devices, and the machine code itself does not care about the revision. - There is existing firmware or boot loaders with existing DT binaries with generic compatible strings that do not identify the particular revision of each device, but the driver knows which SoC revisions include which part. - A prerelease version of a chip has some quirks and we are using the same version of the bootloader and the DT blob on both the prerelease and the final version. An update of the DT binding seems inappropriate because that would involve maintaining multiple copies of the dts and/or bootloader. This patch introduces the soc_device_match() interface that is meant to work like of_match_node() but instead of identifying the version of a device, it identifies the SoC itself using a vendor-agnostic interface. Unlike of_match_node(), we do not do an exact string compare but instead use glob_match() to allow wildcards in strings. Signed-off-by: Arnd Bergmann <arnd@arndb.de> Signed-off-by: Yangbo Lu <yangbo.lu@nxp.com> Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be> Acked-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2016-11-09Merge 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 a larger than usual batch of Netfilter fixes for your net tree. This series contains a mixture of old bugs and recently introduced bugs, they are: 1) Fix a crash when using nft_dynset with nft_set_rbtree, which doesn't support the set element updates from the packet path. From Liping Zhang. 2) Fix leak when nft_expr_clone() fails, from Liping Zhang. 3) Fix a race when inserting new elements to the set hash from the packet path, also from Liping. 4) Handle segmented TCP SIP packets properly, basically avoid that the INVITE in the allow header create bogus expectations by performing stricter SIP message parsing, from Ulrich Weber. 5) nft_parse_u32_check() should return signed integer for errors, from John Linville. 6) Fix wrong allocation instead of connlabels, allocate 16 instead of 32 bytes, from Florian Westphal. 7) Fix compilation breakage when building the ip_vs_sync code with CONFIG_OPTIMIZE_INLINING on x86, from Arnd Bergmann. 8) Destroy the new set if the transaction object cannot be allocated, also from Liping Zhang. 9) Use device to route duplicated packets via nft_dup only when set by the user, otherwise packets may not follow the right route, again from Liping. 10) Fix wrong maximum genetlink attribute definition in IPVS, from WANG Cong. 11) Ignore untracked conntrack objects from xt_connmark, from Florian Westphal. 12) Allow to use conntrack helpers that are registered NFPROTO_UNSPEC via CT target, otherwise we cannot use the h.245 helper, from Florian. 13) Revisit garbage collection heuristic in the new workqueue-based timer approach for conntrack to evict objects earlier, again from Florian. 14) Fix crash in nf_tables when inserting an element into a verdict map, from Liping Zhang. ==================== Signed-off-by: David S. Miller <davem@davemloft.net>
2016-11-10ACPI / platform: Add support for build-in propertiesHeikki Krogerus
We have a couple of drivers, acpi_apd.c and acpi_lpss.c, that need to pass extra build-in properties to the devices they create. Previously the drivers added those properties to the struct device which is member of the struct acpi_device, but that does not work. Those properties need to be assigned to the struct device of the platform device instead in order for them to become available to the drivers. To fix this, this patch changes acpi_create_platform_device function to take struct property_entry pointer as parameter. Fixes: 20a875e2e86e (serial: 8250_dw: Add quirk for APM X-Gene SoC) Signed-off-by: Heikki Krogerus <heikki.krogerus@linux.intel.com> Tested-by: Yazen Ghannam <yazen.ghannam@amd.com> Tested-by: Jérôme de Bretagne <jerome.debretagne@gmail.com> Reviewed-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com> Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
2016-11-09Merge tag 'sound-4.9-rc5' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/tiwai/sound Pull sound fixes from Takashi Iwai: "This became a largish pull-request, as we've got a bunch of pending ASoC fixes at this time. One noticeable change is the removal of error directive in uapi/sound/asoc.h. We found that the API has been already used on Chromebooks, so we need to support it even now. A slight big LOC is found in Qualcomm lpass driver, but the rest are all small and easy fixes for ASoC drivers (sti, sun4i, Realtek codecs, Intel, tas571x, etc) in addition to the patches to harden the ALSA core proc file accesses" * tag 'sound-4.9-rc5' of git://git.kernel.org/pub/scm/linux/kernel/git/tiwai/sound: (26 commits) ALSA: info: Return error for invalid read/write ALSA: info: Limit the proc text input size ASoC: samsung: spdif: Fix DMA filter initialization ASoC: sun4i-codec: Enable bus clock after getting GPIO ASoC: lpass-cpu: add module licence and description ASoC: lpass-platform: Fix broken pcm data usage ASoC: sun4i-codec: return error code instead of NULL when create_card fails ASoC: hdmi-codec: Fix hdmi_of_xlate_dai_name when #sound-dai-cells = <0> ASoC: samsung: get access to DMA engine early to defer probe properly ASoC: da7219: Connect output enable register to DAIOUT ASoC: Intel: Skylake: Fix to turn off hdmi power on probe failure ASoC: sti-sas: enable fast io for regmap ASoC: sti: fix channel status update after playback start ASoC: PXA: Brownstone needs I2C ASoC: Intel: Skylake: Always acquire runtime pm ref on unload ASoC: Intel: Atom: add terminate entry for dmi_system_id tables ASoC: rt298: fix jack type detect error ASoC: rt5663: fix a debug statement ASoC: cs4270: fix DAPM stream name mismatch ASoC: Intel: haswell depends on sst-firmware ...