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2016-01-19brcmfmac: add missing includeFelix Fietkau
linux/module.h is required for defining module parameters Signed-off-by: Felix Fietkau <nbd@openwrt.org> Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
2016-01-19af_iucv: Validate socket address length in iucv_sock_bind()Ursula Braun
Signed-off-by: Ursula Braun <ursula.braun@de.ibm.com> Reported-by: Dmitry Vyukov <dvyukov@google.com> Reviewed-by: Evgeny Cherkashin <Eugene.Crosser@ru.ibm.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2016-01-19IB/sysfs: Fix sparse warning on attr_idIra Weiny
Attributed ID was declared as an int while the value should really be big endian 16. Fixes: 35c4cbb17811 ("IB/core: Create get_perf_mad function in sysfs.c") Reported-by: Bart Van Assche <bart.vanassche@sandisk.com> Signed-off-by: Ira Weiny <ira.weiny@intel.com> Reviewed-by: Bart Van Assche <bart.vanassche@sandisk.com> Reviewed-by: Christoph Lameter <cl@linux.com> Reviewed-by: Hal Rosenstock <hal@mellanox.com> Signed-off-by: Doug Ledford <dledford@redhat.com>
2016-01-19RDMA/be2net: Remove open and close entry pointsDevesh Sharma
Recently Dough Ledford reported a deadlock happening between ocrdma-load sequence and NetworkManager service issueing "open" on be2net interface. The deadlock happens when any be2net hook (e.g. open/close) is called in parallel to insmod ocrdma.ko. A. be2net is sending administrative open/close event to ocrdma holding device_list_mutex. It does this from ndo_open/ndo_stop hooks of be2net. So sequence of locks is rtnl_lock---> device_list lock B. When new ocrdma roce device gets registered, infiniband stack now takes rtnl_lock in ib_register_device() in GID initialization routines. So sequence of locks in this path is device_list lock ---> rtnl_lock. This improper locking sequence causes deadlock. In order to resolve the above deadlock condition, ocrdma intorduced a patch to stop listening to administrative open/close events generated from be2net driver. It now depends on link-state-change async-event generated from CNA. This change leaves behind dead code which used to generate administrative open/close events. This patch cleans-up all that dead code from be2net. Reported-by: Doug Ledford <dledford@redhat.com> CC: Sathya Perla <sathya.perla@avagotech.com> Signed-off-by: Padmanabh Ratnakar <padmanabh.ratnakar@avagotech.com> Signed-off-by: Selvin Xavier <selvin.xavier@avagotech.com> Signed-off-by: Devesh Sharma <devesh.sharma@avagotech.com> Signed-off-by: Doug Ledford <dledford@redhat.com>
2016-01-19RDMA/ocrdma: Depend on async link events from CNADevesh Sharma
Recently Dough Ledford reported a deadlock happening between ocrdma-load sequence and NetworkManager service issuing "open" on be2net interface. The deadlock happens when any be2net hook (e.g. open/close) is called in parallel to insmod ocrdma.ko. A. be2net is sending administrative open/close event to ocrdma holding device_list_mutex. It does this from ndo_open/ndo_stop hooks of be2net. So sequence of locks is rtnl_lock---> device_list lock B. When new ocrdma roce device gets registered, infiniband stack now takes rtnl_lock in ib_register_device() in GID initialization routines. So sequence of locks in this path is device_list lock ---> rtnl_lock. This improper locking sequence causes deadlock. With this patch we stop using administrative open and close events injected by be2net driver. These events were used to dispatch PORT_ACTIVE and PORT_ERROR events to the IB-stack. This patch implements a logic to receive async-link-events generated from CNA whenever link-state-change is detected. Now on, these async-events will be used to dispatch PORT_ACTIVE and PORT_ERROR events to IB-stack. Depending on async-events from CNA removes the need to hold device-list-mutex and thus breaks the busy-wait scenario. Reported-by: Doug Ledford <dledford@redhat.com> CC: Sathya Perla <sathya.perla@avagotech.com> Signed-off-by: Padmanabh Ratnakar <padmanabh.ratnakar@avagotech.com> Signed-off-by: Selvin Xavier <selvin.xavier@avagotech.com> Signed-off-by: Devesh Sharma <devesh.sharma@avagotech.com> Signed-off-by: Doug Ledford <dledford@redhat.com>
2016-01-19RDMA/ocrdma: Dispatch only port event when port state changesDevesh Sharma
Dispatch only port event to IB stack when port state changes. Don't explicitly modify qps to error. Let application listen to port events on async event queue or let QP fail with retry-exceeded completion error. Signed-off-by: Padmanabh Ratnakar <padmanabh.ratnakar@avagotech.com> Signed-off-by: Devesh Sharma <devesh.sharma@avagotech.com> Signed-off-by: Doug Ledford <dledford@redhat.com>
2016-01-19RDMA/ocrdma: Fix vlan-id assignment in qp parametersDevesh Sharma
vlan-id is wrongly getting as 0 when PFC is enabled. Set vlan-id configured by user in QP parameters. In case vlan interface is not used, flash a warning to user to configure vlan and assign vlan-id as 0 in qp params. Fixes: dbf727de7440 ('IB/core: Use GID table in AH creation and dmac resolution') Cc: Matan Barak <matanb@mellanox.com> Signed-off-by: Devesh Sharma <devesh.sharma@avagotech.com> Signed-off-by: Doug Ledford <dledford@redhat.com>
2016-01-19udp: fix potential infinite loop in SO_REUSEPORT logicEric Dumazet
Using a combination of connected and un-connected sockets, Dmitry was able to trigger soft lockups with his fuzzer. The problem is that sockets in the SO_REUSEPORT array might have different scores. Right after sk2=socket(), setsockopt(sk2,...,SO_REUSEPORT, on) and bind(sk2, ...), but _before_ the connect(sk2) is done, sk2 is added into the soreuseport array, with a score which is smaller than the score of first socket sk1 found in hash table (I am speaking of the regular UDP hash table), if sk1 had the connect() done, giving a +8 to its score. hash bucket [X] -> sk1 -> sk2 -> NULL sk1 score = 14 (because it did a connect()) sk2 score = 6 SO_REUSEPORT fast selection is an optimization. If it turns out the score of the selected socket does not match score of first socket, just fallback to old SO_REUSEPORT logic instead of trying to be too smart. Normal SO_REUSEPORT users do not mix different kind of sockets, as this mechanism is used for load balance traffic. Fixes: e32ea7e74727 ("soreuseport: fast reuseport UDP socket selection") Reported-by: Dmitry Vyukov <dvyukov@google.com> Signed-off-by: Eric Dumazet <edumazet@google.com> Cc: Craig Gallek <kraigatgoog@gmail.com> Acked-by: Craig Gallek <kraig@google.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2016-01-19IB/cma: Fix RDMA port validation for iWarpMatan Barak
cma_validate_port wrongly assumed that Ethernet devices are RoCE devices and thus their ndev should be matched in the GID table. This broke the iWarp support. Fixing that matching the ndev only if we work on a RoCE port. Cc: <stable@vger.kernel.org> # 4.4.x- Fixes: abae1b71dd37 ('IB/cma: cma_validate_port should verify the port and netdevice') Reported-by: Hariprasad Shenai <hariprasad@chelsio.com> Tested-by: Hariprasad Shenai <hariprasad@chelsio.com> Signed-off-by: Matan Barak <matanb@mellanox.com> Reviewed-by: Steve Wise <swise@opengridcomputing.com> Signed-off-by: Doug Ledford <dledford@redhat.com>
2016-01-19IB/qib: fix mcast detach when qp not attachedMike Marciniszyn
The code produces the following trace: [1750924.419007] general protection fault: 0000 [#3] SMP [1750924.420364] Modules linked in: nfnetlink autofs4 rpcsec_gss_krb5 nfsv4 dcdbas rfcomm bnep bluetooth nfsd auth_rpcgss nfs_acl dm_multipath nfs lockd scsi_dh sunrpc fscache radeon ttm drm_kms_helper drm serio_raw parport_pc ppdev i2c_algo_bit lpc_ich ipmi_si ib_mthca ib_qib dca lp parport ib_ipoib mac_hid ib_cm i3000_edac ib_sa ib_uverbs edac_core ib_umad ib_mad ib_core ib_addr tg3 ptp dm_mirror dm_region_hash dm_log psmouse pps_core [1750924.420364] CPU: 1 PID: 8401 Comm: python Tainted: G D 3.13.0-39-generic #66-Ubuntu [1750924.420364] Hardware name: Dell Computer Corporation PowerEdge 860/0XM089, BIOS A04 07/24/2007 [1750924.420364] task: ffff8800366a9800 ti: ffff88007af1c000 task.ti: ffff88007af1c000 [1750924.420364] RIP: 0010:[<ffffffffa0131d51>] [<ffffffffa0131d51>] qib_mcast_qp_free+0x11/0x50 [ib_qib] [1750924.420364] RSP: 0018:ffff88007af1dd70 EFLAGS: 00010246 [1750924.420364] RAX: 0000000000000001 RBX: ffff88007b822688 RCX: 000000000000000f [1750924.420364] RDX: ffff88007b822688 RSI: ffff8800366c15a0 RDI: 6764697200000000 [1750924.420364] RBP: ffff88007af1dd78 R08: 0000000000000001 R09: 0000000000000000 [1750924.420364] R10: 0000000000000011 R11: 0000000000000246 R12: ffff88007baa1d98 [1750924.420364] R13: ffff88003ecab000 R14: ffff88007b822660 R15: 0000000000000000 [1750924.420364] FS: 00007ffff7fd8740(0000) GS:ffff88007fc80000(0000) knlGS:0000000000000000 [1750924.420364] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [1750924.420364] CR2: 00007ffff597c750 CR3: 000000006860b000 CR4: 00000000000007e0 [1750924.420364] Stack: [1750924.420364] ffff88007b822688 ffff88007af1ddf0 ffffffffa0132429 000000007af1de20 [1750924.420364] ffff88007baa1dc8 ffff88007baa0000 ffff88007af1de70 ffffffffa00cb313 [1750924.420364] 00007fffffffde88 0000000000000000 0000000000000008 ffff88003ecab000 [1750924.420364] Call Trace: [1750924.420364] [<ffffffffa0132429>] qib_multicast_detach+0x1e9/0x350 [ib_qib] [1750924.568035] [<ffffffffa00cb313>] ? ib_uverbs_modify_qp+0x323/0x3d0 [ib_uverbs] [1750924.568035] [<ffffffffa0092d61>] ib_detach_mcast+0x31/0x50 [ib_core] [1750924.568035] [<ffffffffa00cc213>] ib_uverbs_detach_mcast+0x93/0x170 [ib_uverbs] [1750924.568035] [<ffffffffa00c61f6>] ib_uverbs_write+0xc6/0x2c0 [ib_uverbs] [1750924.568035] [<ffffffff81312e68>] ? apparmor_file_permission+0x18/0x20 [1750924.568035] [<ffffffff812d4cd3>] ? security_file_permission+0x23/0xa0 [1750924.568035] [<ffffffff811bd214>] vfs_write+0xb4/0x1f0 [1750924.568035] [<ffffffff811bdc49>] SyS_write+0x49/0xa0 [1750924.568035] [<ffffffff8172f7ed>] system_call_fastpath+0x1a/0x1f [1750924.568035] Code: 66 2e 0f 1f 84 00 00 00 00 00 31 c0 5d c3 66 2e 0f 1f 84 00 00 00 00 00 66 90 0f 1f 44 00 00 55 48 89 e5 53 48 89 fb 48 8b 7f 10 <f0> ff 8f 40 01 00 00 74 0e 48 89 df e8 8e f8 06 e1 5b 5d c3 0f [1750924.568035] RIP [<ffffffffa0131d51>] qib_mcast_qp_free+0x11/0x50 [ib_qib] [1750924.568035] RSP <ffff88007af1dd70> [1750924.650439] ---[ end trace 73d5d4b3f8ad4851 ] The fix is to note the qib_mcast_qp that was found. If none is found, then return EINVAL indicating the error. Cc: <stable@vger.kernel.org> Reviewed-by: Dennis Dalessandro <dennis.dalessandro@intel.com> Reported-by: Jason Gunthorpe <jgunthorpe@obsidianresearch.com> Signed-off-by: Mike Marciniszyn <mike.marciniszyn@intel.com> Signed-off-by: Doug Ledford <dledford@redhat.com>
2016-01-19IB/IPoIB: Fix kernel panic on multicast flowErez Shitrit
ipoib_mcast_restart_task calls ipoib_mcast_remove_list with the parameter mcast->dev. That mcast is a temporary (used as an iterator) variable that may be uninitialized. There is no need to send the variable dev to the function, as each mcast has its dev as a member in the mcast struct. This causes the next panic: RIP: 0010: ipoib_mcast_leave+0x6d/0xf0 [ib_ipoib] RSP: 0018: EFLAGS: 00010246 RAX: f0201 RBX: 24e00 RCX: 00000 .... .... Stack: Call Trace: ipoib_mcast_remove_list+0x3a/0x70 [ib_ipoib] ipoib_mcast_restart_task+0x3bb/0x520 [ib_ipoib] process_one_work+0x164/0x470 worker_thread+0x11d/0x420 ... Fixes: 5a0e81f6f483 ('IB/IPoIB: factor out common multicast list removal code') Signed-off-by: Erez Shitrit <erezsh@mellanox.com> Reported-by: Doron Tsur <doront@mellanox.com> Reviewed-by: Christoph Lameter <cl@linux.com> Signed-off-by: Doug Ledford <dledford@redhat.com>
2016-01-19drm/amdgpu: Allow the driver to load if amdgpu.powerplay=1 on asics without ↵Jordan Lazare
powerplay support Avoid setting pp_enabled if there is no powerplay implementation. Signed-off-by: Jordan Lazare <Jordan.Lazare@amd.com> Reviewed-by: Alex Deucher <alexander.deucher@amd.com> Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2016-01-19Merge tag 'iommu-updates-v4.5' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/joro/iommu Pull IOMMU updates from Joerg Roedel: "The updates include: - Small code cleanups in the AMD IOMMUv2 driver - Scalability improvements for the DMA-API implementation of the AMD IOMMU driver. This is just a starting point, but already showed some good improvements in my tests. - Removal of the unused Renesas IPMMU/IPMMUI driver - Updates for ARM-SMMU include: * Some fixes to get the driver working nicely on Broadcom hardware * A change to the io-pgtable API to indicate the unit in which to flush (all callers converted, with Ack from Laurent) * Use of devm_* for allocating/freeing the SMMUv3 buffers - Some other small fixes and improvements for other drivers" * tag 'iommu-updates-v4.5' of git://git.kernel.org/pub/scm/linux/kernel/git/joro/iommu: (46 commits) iommu/vt-d: Fix up error handling in alloc_iommu iommu/vt-d: Check the return value of iommu_device_create() iommu/amd: Remove an unneeded condition iommu/amd: Preallocate dma_ops apertures based on dma_mask iommu/amd: Use trylock to aquire bitmap_lock iommu/amd: Make dma_ops_domain->next_index percpu iommu/amd: Relax locking in dma_ops path iommu/amd: Initialize new aperture range before making it visible iommu/amd: Build io page-tables with cmpxchg64 iommu/amd: Allocate new aperture ranges in dma_ops_alloc_addresses iommu/amd: Optimize dma_ops_free_addresses iommu/amd: Remove need_flush from struct dma_ops_domain iommu/amd: Iterate over all aperture ranges in dma_ops_area_alloc iommu/amd: Flush iommu tlb in dma_ops_free_addresses iommu/amd: Rename dma_ops_domain->next_address to next_index iommu/amd: Remove 'start' parameter from dma_ops_area_alloc iommu/amd: Flush iommu tlb in dma_ops_aperture_alloc() iommu/amd: Retry address allocation within one aperture iommu/amd: Move aperture_range.offset to another cache-line iommu/amd: Add dma_ops_aperture_alloc() function ...
2016-01-19drm/amdgpu: Use drm_calloc_large for VM page_tables arrayMichel Dänzer
It can be big, depending on the VM address space size, which is tunable via the vm_size module parameter. Bugzilla: https://bugs.freedesktop.org/show_bug.cgi?id=93721 Reviewed-by: Christian König <christian.koenig@amd.com> Signed-off-by: Michel Dänzer <michel.daenzer@amd.com> Signed-off-by: Alex Deucher <alexander.deucher@amd.com> Cc: stable@vger.kernel.org
2016-01-19find_filesystem(): simplify comparisonAl Viro
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
2016-01-19Merge branches 's390', 'arm/renesas', 'arm/msm', 'arm/shmobile', 'arm/smmu', ↵Joerg Roedel
'x86/amd' and 'x86/vt-d' into next
2016-01-19cpuidle: menu: Avoid pointless checks in menu_select()Rafael J. Wysocki
If menu_select() cannot find a suitable state to return, it will return the state index stored in data->last_state_idx. This means that it is pointless to look at the states whose indices are less than or equal to data->last_state_idx in the main loop, so don't do that. Given that those checks are done on every idle state selection, this change can save quite a bit of completely unnecessary overhead. Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com> Acked-by: Ingo Molnar <mingo@kernel.org> Tested-by: Sudeep Holla <sudeep.holla@arm.com>
2016-01-19sched / idle: Drop default_idle_call() fallback from call_cpuidle()Rafael J. Wysocki
After commit 9c4b2867ed7c (cpuidle: menu: Fix menu_select() for CPUIDLE_DRIVER_STATE_START == 0) it is clear that menu_select() cannot return negative values. Moreover, ladder_select_state() will never return a negative value too, so make find_deepest_state() return non-negative values too and drop the default_idle_call() fallback from call_cpuidle(). This eliminates one branch from the idle loop and makes the governors and find_deepest_state() handle the case when all states have been disabled from sysfs consistently. Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com> Acked-by: Peter Zijlstra (Intel) <peterz@infradead.org> Acked-by: Ingo Molnar <mingo@kernel.org> Tested-by: Sudeep Holla <sudeep.holla@arm.com>
2016-01-19s390: remove all usages of PSW_ADDR_INSNHeiko Carstens
Yet another leftover from the 31 bit era. The usual operation "y = x & PSW_ADDR_INSN" with the PSW_ADDR_INSN mask is a nop for CONFIG_64BIT. Therefore remove all usages and hope the code is a bit less confusing. Signed-off-by: Heiko Carstens <heiko.carstens@de.ibm.com> Reviewed-by: David Hildenbrand <dahi@linux.vnet.ibm.com>
2016-01-19s390: remove all usages of PSW_ADDR_AMODEHeiko Carstens
This is a leftover from the 31 bit area. For CONFIG_64BIT the usual operation "y = x | PSW_ADDR_AMODE" is a nop. Therefore remove all usages of PSW_ADDR_AMODE and make the code a bit less confusing. Signed-off-by: Heiko Carstens <heiko.carstens@de.ibm.com> Reviewed-by: David Hildenbrand <dahi@linux.vnet.ibm.com>
2016-01-19s390: wire up copy_file_range syscallHeiko Carstens
Signed-off-by: Heiko Carstens <heiko.carstens@de.ibm.com> Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
2016-01-19s390: remove superfluous memblock_alloc() return value checksHeiko Carstens
memblock_alloc() and memblock_alloc_base() will panic on their own if they can't find free memory. Therefore remove some pointless checks. Signed-off-by: Heiko Carstens <heiko.carstens@de.ibm.com> Acked-by: Michael Holzheu <holzheu@linux.vnet.ibm.com> Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
2016-01-19s390/numa: allocate memory with correct alignmentHeiko Carstens
Allocating memory with a requested minimum alignment of 1 is wrong since pg_data_t contains a spinlock which requires an alignment of 4 bytes. Therefore fix this and ask for an alignment of 8 bytes like it is guarenteed for all kmalloc requests. Signed-off-by: Heiko Carstens <heiko.carstens@de.ibm.com> Acked-by: Michael Holzheu <holzheu@linux.vnet.ibm.com> Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
2016-01-19s390/irqflags: optimize irq restoreChristian Borntraeger
The ssm instruction takes longer that stnsm/stosm as it is often used to modify DAT and PER. We know that irqsave/irqrestore only deals with external and I/O interrupts and we know that irqrestore can transition only from disabled->disabled or disabled->enabled, so we can use the faster stosm. Signed-off-by: Christian Borntraeger <borntraeger@de.ibm.com>
2016-01-19s390/mm: use TASK_MAX_SIZE where applicableDominik Dingel
To improve readability we can use TASK_MAX_SIZE when we just check for the upper limit. All places explicitly dealing with 3 vs 4 level pgtables were left unchanged. Signed-off-by: Dominik Dingel <dingel@linux.vnet.ibm.com> Reviewed-By: Sascha Silbe <silbe@linux.vnet.ibm.com>
2016-01-19x86/platform/UV: Remove EFI memmap quirk for UV2+Alex Thorlton
Commit a5d90c923bcf ("x86/efi: Quirk out SGI UV") added a quirk to efi_apply_memmap_quirks to force SGI UV systems to fall back to the old EFI memmap mechanism. We have a BIOS fix for this issue on all systems except for UV1. This commit fixes up the EFI quirk/MMR mapping code so that we only apply the special case to UV1 hardware. Signed-off-by: Alex Thorlton <athorlton@sgi.com> Reviewed-by: Matt Fleming <matt@codeblueprint.co.uk> Cc: Dimitri Sivanich <sivanich@sgi.com> Cc: H. Peter Anvin <hpa@zytor.com> Cc: Hedi Berriche <hedi@sgi.com> Cc: Len Brown <len.brown@intel.com> Cc: Linus Torvalds <torvalds@linux-foundation.org> Cc: Mike Travis <travis@sgi.com> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Thomas Gleixner <tglx@linutronix.de> Cc: linux-efi@vger.kernel.org Link: http://lkml.kernel.org/r/1449867585-189233-2-git-send-email-athorlton@sgi.com Signed-off-by: Ingo Molnar <mingo@kernel.org>
2016-01-19btrfs: remove duplicate const specifierColin Ian King
duplicate const is redundant so remove it Signed-off-by: Colin Ian King <colin.king@canonical.com> Signed-off-by: David Sterba <dsterba@suse.com>
2016-01-19mmc: debugfs: correct wrong voltage valueChuanxiao Dong
Correct the wrong voltage value shown in debugfs for mmc/sd/sdio. Signed-off-by: Chuanxiao Dong <chuanxiao.dong@intel.com> Signed-off-by: Pawel Wodkowski <pawelx.wodkowski@intel.com> Fixes: 42cd95a0603e ("mmc: core: debugfs: Add signal_voltage to ios dump") Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
2016-01-19crypto: crc32c - Fix crc32c soft dependencyJean Delvare
I don't think it makes sense for a module to have a soft dependency on itself. This seems quite cyclic by nature and I can't see what purpose it could serve. OTOH libcrc32c calls crypto_alloc_shash("crc32c", 0, 0) so it pretty much assumes that some incarnation of the "crc32c" hash algorithm has been loaded. Therefore it makes sense to have the soft dependency there (as crc-t10dif does.) Cc: stable@vger.kernel.org Cc: Tim Chen <tim.c.chen@linux.intel.com> Cc: "David S. Miller" <davem@davemloft.net> Signed-off-by: Jean Delvare <jdelvare@suse.de> Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
2016-01-19crypto: algif_skcipher - Load TX SG list after waitingHerbert Xu
We need to load the TX SG list in sendmsg(2) after waiting for incoming data, not before. Cc: stable@vger.kernel.org Reported-by: Dmitry Vyukov <dvyukov@google.com> Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au> Tested-by: Dmitry Vyukov <dvyukov@google.com>
2016-01-19crypto: atmel-aes - Add missing break to atmel_aes_reg_nameHerbert Xu
The debug function atmel_aes_reg_name was missing a break for AES_GCMHR. Reported-by: David Binderman <dcb314@hotmail.com> Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
2016-01-19sched: Fix crash in sched_init_numa()Raghavendra K T
The following PowerPC commit: c118baf80256 ("arch/powerpc/mm/numa.c: do not allocate bootmem memory for non existing nodes") avoids allocating bootmem memory for non existent nodes. But when DEBUG_PER_CPU_MAPS=y is enabled, my powerNV system failed to boot because in sched_init_numa(), cpumask_or() operation was done on unallocated nodes. Fix that by making cpumask_or() operation only on existing nodes. [ Tested with and w/o DEBUG_PER_CPU_MAPS=y on x86 and PowerPC. ] Reported-by: Jan Stancek <jstancek@redhat.com> Tested-by: Jan Stancek <jstancek@redhat.com> Signed-off-by: Raghavendra K T <raghavendra.kt@linux.vnet.ibm.com> Cc: <gkurz@linux.vnet.ibm.com> Cc: <grant.likely@linaro.org> Cc: <nikunj@linux.vnet.ibm.com> Cc: <vdavydov@parallels.com> Cc: <linuxppc-dev@lists.ozlabs.org> Cc: <linux-mm@kvack.org> Cc: <peterz@infradead.org> Cc: <benh@kernel.crashing.org> Cc: <paulus@samba.org> Cc: <mpe@ellerman.id.au> Cc: <anton@samba.org> Link: http://lkml.kernel.org/r/1452884483-11676-1-git-send-email-raghavendra.kt@linux.vnet.ibm.com Signed-off-by: Ingo Molnar <mingo@kernel.org>
2016-01-19x86/platform/intel-mid: Join string and fix SoC nameAndy Shevchenko
Join string back to make grepping a bit easier. While here, lowering case for Penwell SoC name in one case to be aligned with the rest messages. Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com> Cc: Andy Lutomirski <luto@amacapital.net> Cc: Borislav Petkov <bp@alien8.de> Cc: Brian Gerst <brgerst@gmail.com> Cc: Denys Vlasenko <dvlasenk@redhat.com> Cc: H. Peter Anvin <hpa@zytor.com> Cc: Linus Torvalds <torvalds@linux-foundation.org> Cc: Mika Westerberg <mika.westerberg@linux.intel.com> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Thomas Gleixner <tglx@linutronix.de> Link: http://lkml.kernel.org/r/1452888668-147116-2-git-send-email-andriy.shevchenko@linux.intel.com Signed-off-by: Ingo Molnar <mingo@kernel.org>
2016-01-19x86/platform/intel-mid: Enable 64-bit buildAndy Shevchenko
Intel Tangier SoC is known to have 64-bit dual core CPU. Enable 64-bit build for it. The kernel has been tested on Intel Edison board: Linux buildroot 4.4.0-next-20160115+ #25 SMP Fri Jan 15 22:03:19 EET 2016 x86_64 GNU/Linux processor : 0 vendor_id : GenuineIntel cpu family : 6 model : 74 model name : Genuine Intel(R) CPU 4000 @ 500MHz stepping : 8 Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com> Cc: Andy Lutomirski <luto@amacapital.net> Cc: Borislav Petkov <bp@alien8.de> Cc: Brian Gerst <brgerst@gmail.com> Cc: Denys Vlasenko <dvlasenk@redhat.com> Cc: H. Peter Anvin <hpa@zytor.com> Cc: Linus Torvalds <torvalds@linux-foundation.org> Cc: Mika Westerberg <mika.westerberg@linux.intel.com> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Thomas Gleixner <tglx@linutronix.de> Link: http://lkml.kernel.org/r/1452888668-147116-1-git-send-email-andriy.shevchenko@linux.intel.com Signed-off-by: Ingo Molnar <mingo@kernel.org>
2016-01-19Merge tag 'perf-core-for-mingo' of ↵Ingo Molnar
git://git.kernel.org/pub/scm/linux/kernel/git/acme/linux into perf/urgent Pull perf tools improvements and fixes from Arnaldo Carvalho de Melo: User visible bug fixes: - Fix reading of build-id from vDSO (Ben Hutchings) - Fix processing samples for guests, noticed with 'perf kvm', but noticeable as well via other tools, such as 'perf top' (Ravi Bangoria) Build infrastructure: - Add feature-dump target and FEATURES_DUMP make variable, to allow reusing the feature detection results among multiple tools/ living codebases, such as perf and lib/bpf (Jiri Olsa) - 'make -C tools/perf build-test' improvements, making it more paralelizable and allowing building it outside of the source tree, using O= (Wang Nan) Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com> Signed-off-by: Ingo Molnar <mingo@kernel.org>
2016-01-19Fix the MAINTAINERS record for the certs/ directoryDavid Howells
Fix the MAINTAINERS record for the certs/ directory to have the new keyrings mailing list and also to be authoritative for the sign-file tool Signed-off-by: David Howells <dhowells@redhat.com> Acked-by: David Woodhouse <David.Woodhouse@intel.com> Signed-off-by: James Morris <james.l.morris@oracle.com>
2016-01-18Merge tag 'for_linus' of git://git.kernel.org/pub/scm/linux/kernel/git/mst/vhostLinus Torvalds
Pull virtio barrier rework+fixes from Michael Tsirkin: "This adds a new kind of barrier, and reworks virtio and xen to use it. Plus some fixes here and there" * tag 'for_linus' of git://git.kernel.org/pub/scm/linux/kernel/git/mst/vhost: (44 commits) checkpatch: add virt barriers checkpatch: check for __smp outside barrier.h checkpatch.pl: add missing memory barriers virtio: make find_vqs() checkpatch.pl-friendly virtio_balloon: fix race between migration and ballooning virtio_balloon: fix race by fill and leak s390: more efficient smp barriers s390: use generic memory barriers xen/events: use virt_xxx barriers xen/io: use virt_xxx barriers xenbus: use virt_xxx barriers virtio_ring: use virt_store_mb sh: move xchg_cmpxchg to a header by itself sh: support 1 and 2 byte xchg virtio_ring: update weak barriers to use virt_xxx Revert "virtio_ring: Update weak barriers to use dma_wmb/rmb" asm-generic: implement virt_xxx memory barriers x86: define __smp_xxx xtensa: define __smp_xxx tile: define __smp_xxx ...
2016-01-19cpupower: Fix build error in cpufreq-infoShreyas B. Prabhu
Fix the following build error by including limits.h - utils/cpufreq-info.c: In function ‘get_latency’: utils/cpufreq-info.c:437:29: error: ‘UINT_MAX’ undeclared (first use in this function) if (!latency || latency == UINT_MAX) { ^ Signed-off-by: Shreyas B. Prabhu <shreyas@linux.vnet.ibm.com> Fixes: e98f033f94f3 (cpupower: fix how "cpupower frequency-info" interprets latency) Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
2016-01-19Merge branch 'xfs-misc-fixes-for-4.5-3' into for-nextDave Chinner
2016-01-19xfs: log mount failures don't wait for buffers to be releasedDave Chinner
Recently I've been seeing xfs/051 fail on 1k block size filesystems. Trying to trace the events during the test lead to the problem going away, indicating that it was a race condition that lead to this ASSERT failure: XFS: Assertion failed: atomic_read(&pag->pag_ref) == 0, file: fs/xfs/xfs_mount.c, line: 156 ..... [<ffffffff814e1257>] xfs_free_perag+0x87/0xb0 [<ffffffff814e21b9>] xfs_mountfs+0x4d9/0x900 [<ffffffff814e5dff>] xfs_fs_fill_super+0x3bf/0x4d0 [<ffffffff811d8800>] mount_bdev+0x180/0x1b0 [<ffffffff814e3ff5>] xfs_fs_mount+0x15/0x20 [<ffffffff811d90a8>] mount_fs+0x38/0x170 [<ffffffff811f4347>] vfs_kern_mount+0x67/0x120 [<ffffffff811f7018>] do_mount+0x218/0xd60 [<ffffffff811f7e5b>] SyS_mount+0x8b/0xd0 When I finally caught it with tracing enabled, I saw that AG 2 had an elevated reference count and a buffer was responsible for it. I tracked down the specific buffer, and found that it was missing the final reference count release that would put it back on the LRU and hence be found by xfs_wait_buftarg() calls in the log mount failure handling. The last four traces for the buffer before the assert were (trimmed for relevance) kworker/0:1-5259 xfs_buf_iodone: hold 2 lock 0 flags ASYNC kworker/0:1-5259 xfs_buf_ioerror: hold 2 lock 0 error -5 mount-7163 xfs_buf_lock_done: hold 2 lock 0 flags ASYNC mount-7163 xfs_buf_unlock: hold 2 lock 1 flags ASYNC This is an async write that is completing, so there's nobody waiting for it directly. Hence we call xfs_buf_relse() once all the processing is complete. That does: static inline void xfs_buf_relse(xfs_buf_t *bp) { xfs_buf_unlock(bp); xfs_buf_rele(bp); } Now, it's clear that mount is waiting on the buffer lock, and that it has been released by xfs_buf_relse() and gained by mount. This is expected, because at this point the mount process is in xfs_buf_delwri_submit() waiting for all the IO it submitted to complete. The mount process, however, is waiting on the lock for the buffer because it is in xfs_buf_delwri_submit(). This waits for IO completion, but it doesn't wait for the buffer reference owned by the IO to go away. The mount process collects all the completions, fails the log recovery, and the higher level code then calls xfs_wait_buftarg() to free all the remaining buffers in the filesystem. The issue is that on unlocking the buffer, the scheduler has decided that the mount process has higher priority than the the kworker thread that is running the IO completion, and so immediately switched contexts to the mount process from the semaphore unlock code, hence preventing the kworker thread from finishing the IO completion and releasing the IO reference to the buffer. Hence by the time that xfs_wait_buftarg() is run, the buffer still has an active reference and so isn't on the LRU list that the function walks to free the remaining buffers. Hence we miss that buffer and continue onwards to tear down the mount structures, at which time we get find a stray reference count on the perag structure. On a non-debug kernel, this will be ignored and the structure torn down and freed. Hence when the kworker thread is then rescheduled and the buffer released and freed, it will access a freed perag structure. The problem here is that when the log mount fails, we still need to quiesce the log to ensure that the IO workqueues have returned to idle before we run xfs_wait_buftarg(). By synchronising the workqueues, we ensure that all IO completions are fully processed, not just to the point where buffers have been unlocked. This ensures we don't end up in the situation above. cc: <stable@vger.kernel.org> # 3.18 Signed-off-by: Dave Chinner <dchinner@redhat.com> Reviewed-by: Brian Foster <bfoster@redhat.com> Signed-off-by: Dave Chinner <david@fromorbit.com>
2016-01-19Revert "xfs: clear PF_NOFREEZE for xfsaild kthread"Dave Chinner
This reverts commit 24ba16bb3d499c49974669cd8429c3e4138ab102 as it prevents machines from suspending. This regression occurs when the xfsaild is idle on entry to suspend, and so there s no activity to wake it from it's idle sleep and hence see that it is supposed to freeze. Hence the freezer times out waiting for it and suspend is cancelled. There is no obvious fix for this short of freezing the filesystem properly, so revert this change for now. cc: <stable@vger.kernel.org> # 4.4 Signed-off-by: Dave Chinner <david@fromorbit.com> Acked-by: Jiri Kosina <jkosina@suse.cz> Reviewed-by: Brian Foster <bfoster@redhat.com> Signed-off-by: Dave Chinner <david@fromorbit.com>
2016-01-19Merge branch 'xfs-setxattr-promotion' into for-nextDave Chinner
2016-01-18Merge git://git.kernel.org/pub/scm/linux/kernel/git/cmetcalf/linux-tileLinus Torvalds
Pull arch/tile updates from Chris Metcalf: "This is a grab bag of changes that includes some NOHZ and context-tracking related changes, some debugging improvements, JUMP_LABEL support, and some fixes for tilepro allmodconfig support. We also remove the now-unused node_has_online_mem() definitions both for tile's asm/topology.h as well as in linux/topology.h itself" * git://git.kernel.org/pub/scm/linux/kernel/git/cmetcalf/linux-tile: numa: remove stale node_has_online_mem() define arch/tile: move user_exit() to early kernel entry sequence tile: fix bug in setting PT_FLAGS_DISABLE_IRQ on kernel entry tile: fix tilepro casts for readl, writel, etc tile: fix a -Wframe-larger-than warning tile: include the syscall number in the backtrace MAINTAINERS: add git URL for tile arch/tile: adopt prepare_exit_to_usermode() model from x86 tile/jump_label: add jump label support for TILE-Gx tile: define a macro ktext_writable_addr to get writable kernel text address
2016-01-18Merge branch 'for-linus' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/egtvedt/linux-avr32 Pull AVR32 updates from Hans-Christian Noren Egtvedt. * 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/egtvedt/linux-avr32: mmc: atmel: get rid of struct mci_dma_data mmc: atmel-mci: restore dma on AVR32 avr32: wire up missing syscalls avr32: wire up accept4 syscall
2016-01-18Merge branch 'for-linus-4.5' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/mason/linux-btrfs Pull btrfs updates from Chris Mason: "This has our usual assortment of fixes and cleanups, but the biggest change included is Omar Sandoval's free space tree. It's not the default yet, mounting -o space_cache=v2 enables it and sets a readonly compat bit. The tree can actually be deleted and regenerated if there are any problems, but it has held up really well in testing so far. For very large filesystems (30T+) our existing free space caching code can end up taking a huge amount of time during commits. The new tree based code is faster and less work overall to update as the commit progresses. Omar worked on this during the summer and we'll hammer on it in production here at FB over the next few months" * 'for-linus-4.5' of git://git.kernel.org/pub/scm/linux/kernel/git/mason/linux-btrfs: (73 commits) Btrfs: fix fitrim discarding device area reserved for boot loader's use Btrfs: Check metadata redundancy on balance btrfs: statfs: report zero available if metadata are exhausted btrfs: preallocate path for snapshot creation at ioctl time btrfs: allocate root item at snapshot ioctl time btrfs: do an allocation earlier during snapshot creation btrfs: use smaller type for btrfs_path locks btrfs: use smaller type for btrfs_path lowest_level btrfs: use smaller type for btrfs_path reada btrfs: cleanup, use enum values for btrfs_path reada btrfs: constify static arrays btrfs: constify remaining structs with function pointers btrfs tests: replace whole ops structure for free space tests btrfs: use list_for_each_entry* in backref.c btrfs: use list_for_each_entry_safe in free-space-cache.c btrfs: use list_for_each_entry* in check-integrity.c Btrfs: use linux/sizes.h to represent constants btrfs: cleanup, remove stray return statements btrfs: zero out delayed node upon allocation btrfs: pass proper enum type to start_transaction() ...
2016-01-18Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/netLinus Torvalds
Pull more networking fixes from David Miller: 1) Fix brcmfmac build with older gcc, from Arend van Spriel. 2) IRQ values unintentionally truncated to u8 in mlx5 driver, from Doron Tsur. 3) Fix build warnings wrt tcp cgroup changes, from Geert Uytterhoeven. 4) Limit deep recursion in ovs stack, from Hannes Frederic Sowa. 5) at803x phy driver bug fixes from, Martin Blumenstingl. 6) Fix TSO handling in hns driver, from Daode Huang * git://git.kernel.org/pub/scm/linux/kernel/git/davem/net: (22 commits) ovs: limit ovs recursions in ovs_execute_actions to not corrupt stack team: Replace rcu_read_lock with a mutex in team_vlan_rx_kill_vid net: hns: bug fix about hisilicon TSO BD mode brcmfmac: fix BRCMF_FW_NVRAM_DEF macro for older gcc compilers net: phy: at803x: Add the interrupt register bit definitions net: phy: at803x: Clean up duplicate register definitions net: phy: at803x: Allow specifying the RGMII RX clock delay via phy mode net: phy: at803x: Don't set gbit features for the AR8030 phy arm64: bpf: add extra pass to handle faulty codegen arm64: insn: remove BUG_ON from codegen sctp: the temp asoc's transports should not be hashed/unhashed net/mlx5_core: Fix trimming down IRQ number tcp_memcontrol: Forward declare cgroup_subsys and mem_cgroup stucts batman-adv: Drop immediate orig_node free function batman-adv: Drop immediate batadv_hard_iface free function batman-adv: Drop immediate neigh_ifinfo free function batman-adv: Drop immediate batadv_hardif_neigh_node free function batman-adv: Drop immediate batadv_neigh_node free function batman-adv: Drop immediate batadv_orig_ifinfo free function batman-adv: Avoid recursive call_rcu for batadv_nc_node ...
2016-01-18Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/ideLinus Torvalds
Pull IDE updates from David Miller: "Just a few small changes this merge window, marking ops const, printf string type fixes, etc" * git://git.kernel.org/pub/scm/linux/kernel/git/davem/ide: drivers/ide: make ide-scan-pci.c driver explicitly non-modular ide: constify ide_dma_ops structures ide: silence some underflow warnings
2016-01-18Merge tag 'rtc-4.5' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/abelloni/linux Pull RTC updates from Alexandre Belloni: "Core: - fix module reference count in rtc-proc - Replace simple_strtoul by kstrtoul New driver: - Epson RX8010SJ Subsystem wide cleanups: - use %ph for short hex dumps - constify *_chip_ops structures Drivers: - abx80x: Microcrystal rv1805 support, alarm support - cmos: prevent kernel warning on IRQ flags mismatch - s5m: various cleanups - rv8803: rx8900 compatibility, small error path fix - sunxi: various cleanups - lpc32xx: remove irq > NR_IRQS check from probe() - imxdi: fix spelling mistake in warning message - ds1685: don't try to micromanage sysfs output size - da9063: avoid writing undefined data to rtc - gemini: Remove unnecessary platform_set_drvdata() - efi: add efi_procfs in efi_rtc_ops - pcf8523: refuse to write dates later than 2099" * tag 'rtc-4.5' of git://git.kernel.org/pub/scm/linux/kernel/git/abelloni/linux: (24 commits) rtc: cmos: prevent kernel warning on IRQ flags mismatch rtc: rtc-ds2404: constify ds2404_chip_ops structures rtc: s5m: Make register configuration per S2MPS device to remove exceptions rtc: s5m: Add separate field for storing auto-cleared mask in register config rtc: s5m: Cleanup by removing useless 'rtc' prefix from fields rtc: Replace simple_strtoul by kstrtoul rtc: abx80x: add alarm support rtc: abx80x: Add Microcrystal rv1805 support rtc: v3020: constify v3020_chip_ops structures rtc: rv8803: Extend compatibility with the rx8900 rtc: rv8803: fix handling return value of i2c_smbus_read_byte_data rtc: Add Epson RX8010SJ RTC driver rtc: lpc32xx: remove irq > NR_IRQS check from probe() rtc: imxdi: fix spelling mistake in warning message rtc: ds1685: don't try to micromanage sysfs output size rtc: use %ph for short hex dumps rtc: da9063: avoid writing undefined data to rtc rtc: sunxi: use of_device_get_match_data rtc: sunxi: constify the data_year_param structure rtc: sunxi: fix signedness issues ...
2016-01-18ARM: debug-ll: fix BCM63xx entry for multiplatformArnd Bergmann
During my randconfig build testing, I found that a kernel with DEBUG_AT91_UART and ARCH_BCM_63XX fails to build: arch/arm/include/debug/at91.S:18:0: error: "CONFIG_DEBUG_UART_VIRT" redefined [-Werror] It turns out that the DEBUG_UART_BCM63XX option is enabled whenever the ARCH_BCM_63XX is, and that breaks multiplatform kernels because we then end up using the UART address from BCM63XX rather than the one we actually configured (if any). This changes the BCM63XX options to only have one Kconfig option, and only enable that if the user explicitly turns it on. Signed-off-by: Arnd Bergmann <arnd@arndb.de> Fixes: b51312bebfa4 ("ARM: BCM63XX: add low-level UART debug support") Cc: stable@vger.kernel.org
2016-01-18Merge tag 'fbdev-4.5' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/tomba/linux Pull fbdev updates from Tomi Valkeinen: "Summary: - pxafb: device-tree support - An unsafe kernel parameter 'lockless_register_fb' for debugging problems happening while inside the console lock - Small miscellaneous fixes & cleanups - omapdss: add writeback support functions - Separation of omapfb and omapdrm (see below) About the separation of omapfb and omapdrm, see http://permalink.gmane.org/gmane.comp.video.dri.devel/143151 for longer story. The short version: omapfb and omapdrm have shared low level drivers (omapdss and panel drivers), making further development of omapdrm difficult. After these patches omapfb and omapdrm have their own versions of the drivers, which are more or less direct copies for now but will diverge soon. This also means that omapfb (everything under drivers/video/fbdev/omap2/) is now in maintenance mode, and all new development will be done for omapdrm (drivers/gpu/drm/omapdrm/)" * tag 'fbdev-4.5' of git://git.kernel.org/pub/scm/linux/kernel/git/tomba/linux: (49 commits) video: fbdev: pxafb: fix out of memory error path drm/omap: make omapdrm select OMAP2_DSS drm/omap: move omapdss & displays under omapdrm omapfb: move vrfb into omapfb omapfb: take omapfb's private omapdss into use omapfb/displays: change CONFIG_DISPLAY_* to CONFIG_FB_OMAP2_* omapfb/dss: change CONFIG_OMAP* to CONFIG_FB_OMAP* omapdss: remove CONFIG_OMAP2_DSS_VENC from omapdss.h omapfb: copy omapdss & displays for omapfb omapfb: allow compilation only if DRM_OMAP is disabled fbdev: omap2: panel-dpi: simplify gpio setting fbdev: omap2: panel-dpi: in .disable first disable backlight then display OMAPDSS: DSS: fix a warning message video: omapdss: delete unneeded of_node_put OMAPDSS: DISPC: Remove boolean comparisons OMAPDSS: DSI: cleanup DSI_IRQ_ERROR_MASK define OMAPDSS: remove extra out == NULL checks OMAPDSS: change internal dispc functions to static OMAPDSS: make a two dss feat funcs internal to omapdss OMAPDSS: remove extra EXPORT_SYMBOLs ...
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