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2019-11-15net/smc: introduce bookkeeping of SMCD link groupsUrsula Braun
If the ism module is unloaded return control from exit routine only, if all link groups are freed. If an IB device is thrown away return control from device removal only, if all link groups belonging to this device are freed. A counters for the total number of SMCD link groups per ISM device is introduced. ism module unloading continues only if the total number of SMCD link groups for all ISM devices is zero. ISM device removal continues only it the total number of SMCD link groups per ISM device has decreased to zero. Signed-off-by: Ursula Braun <ubraun@linux.ibm.com> Signed-off-by: Karsten Graul <kgraul@linux.ibm.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2019-11-15net/smc: abnormal termination of SMCD link groupsUrsula Braun
A final cleanup due to SMCD device removal means immediate freeing of all link groups belonging to this device in interrupt context. This patch introduces a separate SMCD link group termination routine, which terminates all link groups of an SMCD device. This new routine smcd_terminate_all ()is reused if the smc module is unloaded. Signed-off-by: Ursula Braun <ubraun@linux.ibm.com> Signed-off-by: Karsten Graul <kgraul@linux.ibm.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2019-11-15net/smc: immediate termination for SMCD link groupsUrsula Braun
SMCD link group termination is called when peer signals its shutdown of its corresponding link group. For regular shutdowns no connections exist anymore. For abnormal shutdowns connections must be killed and their DMBs must be unregistered immediately. That means the SMCR method to delay the link group freeing several seconds does not fit. This patch adds immediate termination of a link group and its SMCD connections and makes sure all SMCD link group related cleanup steps are finished. Signed-off-by: Ursula Braun <ubraun@linux.ibm.com> Signed-off-by: Karsten Graul <kgraul@linux.ibm.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2019-11-15net/smc: fix final cleanup sequence for SMCD devicesUrsula Braun
If peer announces shutdown, use the link group terminate worker for local cleanup of link groups and connections to terminate link group in proper context. Make sure link groups are cleaned up first before destroying the event queue of the SMCD device, because link group cleanup may raise events. Send signal shutdown only if peer has not done it already. Send socket abort or close only, if peer has not already announced shutdown. Signed-off-by: Ursula Braun <ubraun@linux.ibm.com> Signed-off-by: Karsten Graul <kgraul@linux.ibm.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2019-11-15Merge branch 'net-stmmac-CPU-Performance-Improvements'David S. Miller
Jose Abreu says: ==================== net: stmmac: CPU Performance Improvements CPU Performance improvements for stmmac. Please check bellow for results before and after the series. Patch 1/7, allows RX Interrupt on Completion to be disabled and only use the RX HW Watchdog. Patch 2/7, setups the default RX coalesce settings instead of using the minimum value. Patch 3/7 and 4/7, removes the uneeded computations for RX Flow Control activation/de-activation, on some cases. Patch 5/7, tunes-up the default coalesce settings. Patch 6/7, re-works the TX coalesce timer activation logic. Patch 7/7, removes the now uneeded TBU interrupt. NetPerf UDP Results: -------------------- Socket Message Elapsed Messages CPU Service Size Size Time Okay Errors Throughput Util Demand bytes bytes secs # # 10^6bits/sec % SS us/KB --- XGMAC@2.5G: Before 212992 1400 10.00 2100620 0 2351.7 36.69 5.112 212992 10.00 2100539 2351.6 26.18 3.648 --- XGMAC@2.5G: After 212992 1400 10.00 2108972 0 2361.5 21.73 3.015 212992 10.00 2097038 2348.1 19.21 2.666 --- GMAC5@1G: Before 212992 1400 10.00 786000 0 880.2 34.71 12.923 212992 10.00 786000 880.2 23.42 8.719 --- GMAC5@1G: After 212992 1400 10.00 842648 0 943.7 14.12 4.903 212992 10.00 842648 943.7 12.73 4.418 Perf TCP Results on RX Path: ---------------------------- --- XGMAC@2.5G: Before 22.51% swapper [stmmac] [k] dwxgmac2_dma_interrupt 10.82% swapper [stmmac] [k] dwxgmac2_host_mtl_irq_status 5.21% swapper [stmmac] [k] dwxgmac2_host_irq_status 4.67% swapper [stmmac] [k] dwxgmac3_safety_feat_irq_status 3.63% swapper [kernel.kallsyms] [k] stack_trace_consume_entry 2.74% iperf3 [kernel.kallsyms] [k] copy_user_enhanced_fast_string 2.52% swapper [kernel.kallsyms] [k] update_stack_state 1.94% ksoftirqd/0 [stmmac] [k] dwxgmac2_dma_interrupt 1.45% iperf3 [kernel.kallsyms] [k] queued_spin_lock_slowpath 1.26% swapper [kernel.kallsyms] [k] create_object --- XGMAC@2.5G: After 7.43% swapper [kernel.kallsyms] [k] stack_trace_consume_entry 5.86% swapper [stmmac] [k] dwxgmac2_dma_interrupt 5.68% swapper [kernel.kallsyms] [k] update_stack_state 4.71% iperf3 [kernel.kallsyms] [k] copy_user_enhanced_fast_string 2.88% swapper [kernel.kallsyms] [k] create_object 2.69% swapper [stmmac] [k] dwxgmac2_host_mtl_irq_status 2.61% swapper [stmmac] [k] stmmac_napi_poll_rx 2.52% swapper [kernel.kallsyms] [k] unwind_next_frame.part.4 1.48% swapper [kernel.kallsyms] [k] unwind_get_return_address 1.38% swapper [kernel.kallsyms] [k] arch_stack_walk --- GMAC5@1G: Before 31.29% swapper [stmmac] [k] dwmac4_dma_interrupt 14.57% swapper [stmmac] [k] dwmac4_irq_mtl_status 10.66% swapper [stmmac] [k] dwmac4_irq_status 1.97% swapper [kernel.kallsyms] [k] stack_trace_consume_entry 1.73% iperf3 [kernel.kallsyms] [k] copy_user_enhanced_fast_string 1.59% swapper [kernel.kallsyms] [k] update_stack_state 1.15% iperf3 [kernel.kallsyms] [k] do_syscall_64 1.01% ksoftirqd/0 [stmmac] [k] dwmac4_dma_interrupt 0.89% swapper [kernel.kallsyms] [k] __default_send_IPI_dest_field 0.75% swapper [stmmac] [k] stmmac_napi_poll_rx --- GMAC5@1G: After 6.70% swapper [kernel.kallsyms] [k] stack_trace_consume_entry 5.79% swapper [stmmac] [k] dwmac4_dma_interrupt 5.29% swapper [kernel.kallsyms] [k] update_stack_state 3.52% iperf3 [kernel.kallsyms] [k] copy_user_enhanced_fast_string 2.83% swapper [stmmac] [k] dwmac4_irq_mtl_status 2.62% swapper [kernel.kallsyms] [k] create_object 2.46% swapper [stmmac] [k] stmmac_napi_poll_rx 2.32% swapper [kernel.kallsyms] [k] unwind_next_frame.part.4 2.19% swapper [stmmac] [k] dwmac4_irq_status 1.39% swapper [kernel.kallsyms] [k] unwind_get_return_address ==================== Signed-off-by: David S. Miller <davem@davemloft.net>
2019-11-15net: stmmac: xgmac: Do not enable TBU interruptJose Abreu
Now that TX Coalesce has been rewritten we no longer need this additional interrupt enabled. This reduces CPU usage. Signed-off-by: Jose Abreu <Jose.Abreu@synopsys.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2019-11-15net: stmmac: Rework TX Coalesce logicJose Abreu
Coalesce logic currently increments the number of packets and sets the IC bit when the coalesced packets have passed a given limit. This does not reflect very well what coalesce was meant for as we can have a large number of packets that are coalesced and then a single one, sent later on that has the IC bit. Rework the logic so that it coalesces only upon a limit of packets and sets the IC bit for large number of packets. Signed-off-by: Jose Abreu <Jose.Abreu@synopsys.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2019-11-15net: stmmac: Tune-up default coalesce settingsJose Abreu
Tune-up the defalt coalesce settings for optimal values. This gives the best performance in most of the use-cases. Signed-off-by: Jose Abreu <Jose.Abreu@synopsys.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2019-11-15net: stmmac: xgmac: Remove uneeded computation for RFA/RFDJose Abreu
RFA and RFD should not be dependent on FIFO size. In fact, the more FIFO space we have, the later we can activate Flow Control. Let's use hard-coded values for RFA and RFD for all FIFO sizes with the exception of 4k, which is a special case. Signed-off-by: Jose Abreu <Jose.Abreu@synopsys.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2019-11-15net: stmmac: gmac4+: Remove uneeded computation for RFA/RFDJose Abreu
RFA and RFD should not be dependent on FIFO size. In fact, the more FIFO space we have, the later we can activate Flow Control. Let's use hard-coded values for RFA and RFD for all FIFO sizes with the exception of 4k, which is a special case. Signed-off-by: Jose Abreu <Jose.Abreu@synopsys.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2019-11-15net: stmmac: Setup a default RX Coalesce value instead of the minimumJose Abreu
For performance reasons, sometimes using the minimum RX Coalesce value is not optimal. Lets setup a default value that is optimal in most of the use cases. Signed-off-by: Jose Abreu <Jose.Abreu@synopsys.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2019-11-15net: stmmac: Do not set RX IC bit if RX Coalesce is zeroJose Abreu
We may only want to use the RX Watchdog so lets check if RX Coalesce settings are non-zero and only set the RX Interrupt on Completion bit if its not. Signed-off-by: Jose Abreu <Jose.Abreu@synopsys.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2019-11-15mlxsw: spectrum_router: Allocate discard adjacency entry when neededIdo Schimmel
Commit 0c3cbbf96def ("mlxsw: Add specific trap for packets routed via invalid nexthops") allocated an adjacency entry during driver initialization whose purpose is to discard packets hitting the route pointing to it. These adjacency entries are allocated from a resource called KVD linear (KVDL). There are situations in which the user can decide to set the size of this resource (via devlink-resource) to 0, in which case the driver will not be able to load. Therefore, instead of pre-allocating this adjacency entry, simply allocate it only when needed. A variable indicating the validity of the entry is added and is used to ensure it is only allocated and written once and that it is freed after all the routes were flushed. Fixes: 0c3cbbf96def ("mlxsw: Add specific trap for packets routed via invalid nexthops") Signed-off-by: Ido Schimmel <idosch@mellanox.com> Acked-by: Jiri Pirko <jiri@mellanox.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2019-11-15ax88172a: fix information leak on short answersOliver Neukum
If a malicious device gives a short MAC it can elicit up to 5 bytes of leaked memory out of the driver. We need to check for ETH_ALEN instead. Reported-by: syzbot+a8d4acdad35e6bbca308@syzkaller.appspotmail.com Signed-off-by: Oliver Neukum <oneukum@suse.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2019-11-15selftests: mlxsw: Adjust test to recent changesIdo Schimmel
mlxsw does not support VXLAN devices with a physical device attached and vetoes such configurations upon enslavement to an offloaded bridge. Commit 0ce1822c2a08 ("vxlan: add adjacent link to limit depth level") changed the VXLAN device to be an upper of the physical device which causes mlxsw to veto the creation of the VXLAN device with "Unknown upper device type". This is OK as this configuration is not supported, but it prevents us from testing bad flows involving the enslavement of VXLAN devices with a physical device to a bridge, regardless if the physical device is an mlxsw netdev or not. Adjust the test to use a dummy device as a physical device instead of a mlxsw netdev. Fixes: 0ce1822c2a08 ("vxlan: add adjacent link to limit depth level") Signed-off-by: Ido Schimmel <idosch@mellanox.com> Acked-by: Jiri Pirko <jiri@mellanox.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2019-11-15net/tls: Fix unused function warningYueHaibing
If PROC_FS is not set, gcc warning this: net/tls/tls_proc.c:23:12: warning: 'tls_statistics_seq_show' defined but not used [-Wunused-function] Use #ifdef to guard this. Reported-by: Hulk Robot <hulkci@huawei.com> Signed-off-by: YueHaibing <yuehaibing@huawei.com> Acked-by: Jakub Kicinski <jakub.kicinski@netronome.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2019-11-15workqueue: Add RCU annotation for pwq list walkSebastian Andrzej Siewior
An additional check has been recently added to ensure that a RCU related lock is held while the RCU list is iterated. The `pwqs' are sometimes iterated without a RCU lock but with the &wq->mutex acquired leading to a warning. Teach list_for_each_entry_rcu() that the RCU usage is okay if &wq->mutex is acquired during the list traversal. Fixes: 28875945ba98d ("rcu: Add support for consolidated-RCU reader checking") Signed-off-by: Sebastian Andrzej Siewior <bigeasy@linutronix.de> Signed-off-by: Tejun Heo <tj@kernel.org>
2019-11-15dm integrity: fix excessive alignment of metadata runsMikulas Patocka
Metadata runs are supposed to be aligned on 4k boundary (so that they work efficiently with disks with 4k sectors). However, there was a programming bug that makes them aligned on 128k boundary instead. The unused space is wasted. Fix this bug by providing a proper 4k alignment. In order to keep existing volumes working, we introduce a new flag SB_FLAG_FIXED_PADDING - when the flag is clear, we calculate the padding the old way. In order to make sure that the old version cannot mount the volume created by the new version, we increase superblock version to 4. Also in order to not break with old integritysetup, we fix alignment only if the parameter "fix_padding" is present when formatting the device. Signed-off-by: Mikulas Patocka <mpatocka@redhat.com> Signed-off-by: Mike Snitzer <snitzer@redhat.com>
2019-11-15Input: synaptics-rmi4 - destroy F54 poller workqueue when removingChuhong Yuan
The driver forgets to destroy workqueue in remove() similarly to what is done when probe() fails. Add a call to destroy_workqueue() to fix it. Since unregistration will wait for the work to finish, we do not need to cancel/flush the work instance in remove(). Signed-off-by: Chuhong Yuan <hslester96@gmail.com> Cc: stable@vger.kernel.org Link: https://lore.kernel.org/r/20191114023405.31477-1-hslester96@gmail.com Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
2019-11-15Input: ff-memless - kill timer in destroy()Oliver Neukum
No timer must be left running when the device goes away. Signed-off-by: Oliver Neukum <oneukum@suse.com> Reported-and-tested-by: syzbot+b6c55daa701fc389e286@syzkaller.appspotmail.com Cc: stable@vger.kernel.org Link: https://lore.kernel.org/r/1573726121.17351.3.camel@suse.com Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
2019-11-15x86/cpu: Align the x86_capability array to size of unsigned longFenghua Yu
The x86_capability array in cpuinfo_x86 is of type u32 and thus is naturally aligned to 4 bytes. But, set_bit() and clear_bit() require the array to be aligned to size of unsigned long (i.e. 8 bytes on 64-bit systems). The array pointer is handed into atomic bit operations. If the access is not aligned to unsigned long then the atomic bit operations can end up crossing a cache line boundary, which causes the CPU to do a full bus lock as it can't lock both cache lines at once. The bus lock operation is heavy weight and can cause severe performance degradation. The upcoming #AC split lock detection mechanism will issue warnings for this kind of access. Force the alignment of the array to unsigned long. This avoids the massive code changes which would be required when converting the array data type to unsigned long. [ tglx: Rewrote changelog so it contains information WHY this is required ] Suggested-by: David Laight <David.Laight@aculab.com> Suggested-by: Thomas Gleixner <tglx@linutronix.de> Signed-off-by: Fenghua Yu <fenghua.yu@intel.com> Signed-off-by: Tony Luck <tony.luck@intel.com> Signed-off-by: Thomas Gleixner <tglx@linutronix.de> Link: https://lkml.kernel.org/r/20190916223958.27048-4-tony.luck@intel.com
2019-11-15x86/cpu: Align cpu_caps_cleared and cpu_caps_set to unsigned longFenghua Yu
cpu_caps_cleared[] and cpu_caps_set[] are arrays of type u32 and therefore naturally aligned to 4 bytes, which is also unsigned long aligned on 32-bit, but not on 64-bit. The array pointer is handed into atomic bit operations. If the access not aligned to unsigned long then the atomic bit operations can end up crossing a cache line boundary, which causes the CPU to do a full bus lock as it can't lock both cache lines at once. The bus lock operation is heavy weight and can cause severe performance degradation. The upcoming #AC split lock detection mechanism will issue warnings for this kind of access. Force the alignment of these arrays to unsigned long. This avoids the massive code changes which would be required when converting the array data type to unsigned long. [ tglx: Rewrote changelog ] Signed-off-by: Fenghua Yu <fenghua.yu@intel.com> Signed-off-by: Tony Luck <tony.luck@intel.com> Signed-off-by: Thomas Gleixner <tglx@linutronix.de> Reviewed-by: Borislav Petkov <bp@suse.de> Link: https://lkml.kernel.org/r/20190916223958.27048-2-tony.luck@intel.com
2019-11-15Merge tag 'ceph-for-5.4-rc8' of git://github.com/ceph/ceph-clientLinus Torvalds
Pull ceph fixes from Ilya Dryomov: "Two fixes for the buffered reads and O_DIRECT writes serialization patch that went into -rc1 and a fixup for a bogus warning on older gcc versions" * tag 'ceph-for-5.4-rc8' of git://github.com/ceph/ceph-client: rbd: silence bogus uninitialized warning in rbd_object_map_update_finish() ceph: increment/decrement dio counter on async requests ceph: take the inode lock before acquiring cap refs
2019-11-15afs: Fix race in commit bulk status fetchDavid Howells
When a lookup is done, the afs filesystem will perform a bulk status-fetch operation on the requested vnode (file) plus the next 49 other vnodes from the directory list (in AFS, directory contents are downloaded as blobs and parsed locally). When the results are received, it will speculatively populate the inode cache from the extra data. However, if the lookup races with another lookup on the same directory, but for a different file - one that's in the 49 extra fetches, then if the bulk status-fetch operation finishes first, it will try and update the inode from the other lookup. If this other inode is still in the throes of being created, however, this will cause an assertion failure in afs_apply_status(): BUG_ON(test_bit(AFS_VNODE_UNSET, &vnode->flags)); on or about fs/afs/inode.c:175 because it expects data to be there already that it can compare to. Fix this by skipping the update if the inode is being created as the creator will presumably set up the inode with the same information. Fixes: 39db9815da48 ("afs: Fix application of the results of a inline bulk status fetch") Signed-off-by: David Howells <dhowells@redhat.com> Reviewed-by: Marc Dionne <marc.dionne@auristor.com> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2019-11-15futex: Prevent robust futex exit raceYang Tao
Robust futexes utilize the robust_list mechanism to allow the kernel to release futexes which are held when a task exits. The exit can be voluntary or caused by a signal or fault. This prevents that waiters block forever. The futex operations in user space store a pointer to the futex they are either locking or unlocking in the op_pending member of the per task robust list. After a lock operation has succeeded the futex is queued in the robust list linked list and the op_pending pointer is cleared. After an unlock operation has succeeded the futex is removed from the robust list linked list and the op_pending pointer is cleared. The robust list exit code checks for the pending operation and any futex which is queued in the linked list. It carefully checks whether the futex value is the TID of the exiting task. If so, it sets the OWNER_DIED bit and tries to wake up a potential waiter. This is race free for the lock operation but unlock has two race scenarios where waiters might not be woken up. These issues can be observed with regular robust pthread mutexes. PI aware pthread mutexes are not affected. (1) Unlocking task is killed after unlocking the futex value in user space before being able to wake a waiter. pthread_mutex_unlock() | V atomic_exchange_rel (&mutex->__data.__lock, 0) <------------------------killed lll_futex_wake () | | |(__lock = 0) |(enter kernel) | V do_exit() exit_mm() mm_release() exit_robust_list() handle_futex_death() | |(__lock = 0) |(uval = 0) | V if ((uval & FUTEX_TID_MASK) != task_pid_vnr(curr)) return 0; The sanity check which ensures that the user space futex is owned by the exiting task prevents the wakeup of waiters which in consequence block infinitely. (2) Waiting task is killed after a wakeup and before it can acquire the futex in user space. OWNER WAITER futex_wait() pthread_mutex_unlock() | | | |(__lock = 0) | | | V | futex_wake() ------------> wakeup() | |(return to userspace) |(__lock = 0) | V oldval = mutex->__data.__lock <-----------------killed atomic_compare_and_exchange_val_acq (&mutex->__data.__lock, | id | assume_other_futex_waiters, 0) | | | (enter kernel)| | V do_exit() | | V handle_futex_death() | |(__lock = 0) |(uval = 0) | V if ((uval & FUTEX_TID_MASK) != task_pid_vnr(curr)) return 0; The sanity check which ensures that the user space futex is owned by the exiting task prevents the wakeup of waiters, which seems to be correct as the exiting task does not own the futex value, but the consequence is that other waiters wont be woken up and block infinitely. In both scenarios the following conditions are true: - task->robust_list->list_op_pending != NULL - user space futex value == 0 - Regular futex (not PI) If these conditions are met then it is reasonably safe to wake up a potential waiter in order to prevent the above problems. As this might be a false positive it can cause spurious wakeups, but the waiter side has to handle other types of unrelated wakeups, e.g. signals gracefully anyway. So such a spurious wakeup will not affect the correctness of these operations. This workaround must not touch the user space futex value and cannot set the OWNER_DIED bit because the lock value is 0, i.e. uncontended. Setting OWNER_DIED in this case would result in inconsistent state and subsequently in malfunction of the owner died handling in user space. The rest of the user space state is still consistent as no other task can observe the list_op_pending entry in the exiting tasks robust list. The eventually woken up waiter will observe the uncontended lock value and take it over. [ tglx: Massaged changelog and comment. Made the return explicit and not depend on the subsequent check and added constants to hand into handle_futex_death() instead of plain numbers. Fixed a few coding style issues. ] Fixes: 0771dfefc9e5 ("[PATCH] lightweight robust futexes: core") Signed-off-by: Yang Tao <yang.tao172@zte.com.cn> Signed-off-by: Yi Wang <wang.yi59@zte.com.cn> Signed-off-by: Thomas Gleixner <tglx@linutronix.de> Reviewed-by: Ingo Molnar <mingo@kernel.org> Acked-by: Peter Zijlstra (Intel) <peterz@infradead.org> Cc: stable@vger.kernel.org Link: https://lkml.kernel.org/r/1573010582-35297-1-git-send-email-wang.yi59@zte.com.cn Link: https://lkml.kernel.org/r/20191106224555.943191378@linutronix.de
2019-11-15Merge tag 'arm64-fixes' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux Pull arm64 fix from Will Deacon: "One trivial fix for -rc8/final that ensures that the script used to detect RELR relocation support in the toolchain works correctly when $CC contains quotes. Although it fails safely (by failing to detect the support when it exists), it would be nice to have this fixed in 5.4 given that it was only introduced in the last merge window. Summary: - Handle CC variables containing quotes in tools-support-relr.sh script" * tag 'arm64-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux: scripts/tools-support-relr.sh: un-quote variables
2019-11-15Merge tag 'mips_fixes_5.4_4' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/mips/linux Pull MIPS fixes from Paul Burton: "A fix and simplification for SGI IP27 exception handlers, and a small MAINTAINERS update for Broadcom MIPS systems" * tag 'mips_fixes_5.4_4' of git://git.kernel.org/pub/scm/linux/kernel/git/mips/linux: MAINTAINERS: Remove Kevin as maintainer of BMIPS generic platforms MIPS: SGI-IP27: fix exception handler replication
2019-11-15Merge tag 'for-linus' of git://git.kernel.org/pub/scm/virt/kvm/kvmLinus Torvalds
Pull more KVM fixes from Paolo Bonzini: - fixes for CONFIG_KVM_COMPAT=n - two updates to the IFU erratum - selftests build fix - brown paper bag fix * tag 'for-linus' of git://git.kernel.org/pub/scm/virt/kvm/kvm: KVM: Add a comment describing the /dev/kvm no_compat handling KVM: x86/mmu: Take slots_lock when using kvm_mmu_zap_all_fast() KVM: Forbid /dev/kvm being opened by a compat task when CONFIG_KVM_COMPAT=n KVM: X86: Reset the three MSR list number variables to 0 in kvm_init_msr_list() selftests: kvm: fix build with glibc >= 2.30 kvm: x86: disable shattered huge page recovery for PREEMPT_RT.
2019-11-15Merge tag 'mmc-v5.4-rc7' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/ulfh/mmc Pull MMC fix from Ulf Hansson: "Don't overwrite quirk flags in sdhci-of-at91 host driver" * tag 'mmc-v5.4-rc7' of git://git.kernel.org/pub/scm/linux/kernel/git/ulfh/mmc: mmc: sdhci-of-at91: fix quirk2 overwrite
2019-11-15Merge tag 'sound-5.4-rc8' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/tiwai/sound Pull sound fixes from Takashi Iwai: "A few small last-minute fixes for USB-audio and HD-audio as well as for PCM core: - A race fix for PCM core between stopping and closing a stream - USB-audio regressions in the recent descriptor validation code and relevant changes - A read of uninitialized value in USB-audio spotted by fuzzer - A fix for USB-audio race at stopping a stream - Intel HD-audio platform fixes" * tag 'sound-5.4-rc8' of git://git.kernel.org/pub/scm/linux/kernel/git/tiwai/sound: ALSA: usb-audio: Fix incorrect size check for processing/extension units ALSA: usb-audio: Fix incorrect NULL check in create_yamaha_midi_quirk() ALSA: pcm: Fix stream lock usage in snd_pcm_period_elapsed() ALSA: usb-audio: not submit urb for stopped endpoint ALSA: hda: hdmi - fix pin setup on Tigerlake ALSA: hda: Add Cometlake-S PCI ID ALSA: usb-audio: Fix missing error check at mixer resolution test
2019-11-15Merge tag 'drm-fixes-2019-11-15' of git://anongit.freedesktop.org/drm/drmLinus Torvalds
Pull drm fixes from Dave Airlie: "Here is this weeks non-intel hw vuln fixes pull. Three drivers, all small fixes. i915: - MOCS table fixes for EHL and TGL - Update Display's rawclock on resume - GVT's dmabuf reference drop fix amdgpu: - Fix a potential crash in firmware parsing sun4i: - One fix to the dotclock dividers range for sun4i" * tag 'drm-fixes-2019-11-15' of git://anongit.freedesktop.org/drm/drm: drm/amdgpu: fix null pointer deref in firmware header printing drm/i915/tgl: MOCS table update Revert "drm/i915/ehl: Update MOCS table for EHL" drm/sun4i: tcon: Set min division of TCON0_DCLK to 1. drm/i915: update rawclk also on resume drm/i915/gvt: fix dropping obj reference twice
2019-11-15Merge branch 'fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfsLinus Torvalds
Pull misc vfs fixes from Al Viro: "Assorted fixes all over the place; some of that is -stable fodder, some regressions from the last window" * 'fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs: ecryptfs_lookup_interpose(): lower_dentry->d_parent is not stable either ecryptfs_lookup_interpose(): lower_dentry->d_inode is not stable ecryptfs: fix unlink and rmdir in face of underlying fs modifications audit_get_nd(): don't unlock parent too early exportfs_decode_fh(): negative pinned may become positive without the parent locked cgroup: don't put ERR_PTR() into fc->root autofs: fix a leak in autofs_expire_indirect() aio: Fix io_pgetevents() struct __compat_aio_sigset layout fs/namespace.c: fix use-after-free of mount in mnt_warn_timestamp_expiry()
2019-11-15rtw88: remove duplicated include from ps.cYueHaibing
Remove duplicated include. Signed-off-by: YueHaibing <yuehaibing@huawei.com> Reviewed-by: Simon Horman <simon.horman@netronome.com> Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
2019-11-15rtl8xxxu: Remove set but not used variable 'rsr'Zheng Yongjun
Fixes gcc '-Wunused-but-set-variable' warning: drivers/net/wireless/realtek/rtl8xxxu/rtl8xxxu_core.c: In function rtl8xxxu_gen2_config_channel: drivers/net/wireless/realtek/rtl8xxxu/rtl8xxxu_core.c:1266:13: warning: variable rsr set but not used [-Wunused-but-set-variable] rsr is never used, so remove it. Reported-by: Hulk Robot <hulkci@huawei.com> Signed-off-by: Zheng Yongjun <zhengyongjun3@huawei.com> Reviewed-by: Chris Chiu <chiu@endlessm.com> Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
2019-11-15brcmsmac: remove unnecessary returnEduardo Abinader
Signed-off-by: Eduardo Abinader <eduardoabinader@gmail.com> Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
2019-11-15spi: tegra20-slink: add missed clk_unprepareChuhong Yuan
The driver misses calling clk_unprepare in probe failure and remove. Add the calls to fix it. Signed-off-by: Chuhong Yuan <hslester96@gmail.com> Link: https://lore.kernel.org/r/20191115083122.12278-1-hslester96@gmail.com Signed-off-by: Mark Brown <broonie@kernel.org>
2019-11-15spi: tegra20-slink: Use dma_request_chan() directly for channel requestPeter Ujfalusi
dma_request_slave_channel_reason() is: #define dma_request_slave_channel_reason(dev, name) \ dma_request_chan(dev, name) Signed-off-by: Peter Ujfalusi <peter.ujfalusi@ti.com> Acked-by: Jon Hunter <jonathanh@nvidia.com> Link: https://lore.kernel.org/r/20191113094256.1108-10-peter.ujfalusi@ti.com Signed-off-by: Mark Brown <broonie@kernel.org>
2019-11-15spi: tegra114: Use dma_request_chan() directly for channel requestPeter Ujfalusi
dma_request_slave_channel_reason() is: #define dma_request_slave_channel_reason(dev, name) \ dma_request_chan(dev, name) Signed-off-by: Peter Ujfalusi <peter.ujfalusi@ti.com> Acked-by: Jon Hunter <jonathanh@nvidia.com> Link: https://lore.kernel.org/r/20191113094256.1108-9-peter.ujfalusi@ti.com Signed-off-by: Mark Brown <broonie@kernel.org>
2019-11-15spi: s3c64xx: Use dma_request_chan() directly for channel requestPeter Ujfalusi
dma_request_slave_channel_reason() is: #define dma_request_slave_channel_reason(dev, name) \ dma_request_chan(dev, name) Signed-off-by: Peter Ujfalusi <peter.ujfalusi@ti.com> Acked-by: Krzysztof Kozlowski <krzk@kernel.org> Acked-by: Andi Shyti <andi@etezian.org> Link: https://lore.kernel.org/r/20191113094256.1108-8-peter.ujfalusi@ti.com Signed-off-by: Mark Brown <broonie@kernel.org>
2019-11-15spi: qup: Use dma_request_chan() directly for channel requestPeter Ujfalusi
dma_request_slave_channel_reason() is: #define dma_request_slave_channel_reason(dev, name) \ dma_request_chan(dev, name) Signed-off-by: Peter Ujfalusi <peter.ujfalusi@ti.com> Link: https://lore.kernel.org/r/20191113094256.1108-7-peter.ujfalusi@ti.com Signed-off-by: Mark Brown <broonie@kernel.org>
2019-11-15spi: pl022: Use dma_request_chan() directly for channel requestPeter Ujfalusi
dma_request_slave_channel_reason() is: #define dma_request_slave_channel_reason(dev, name) \ dma_request_chan(dev, name) Signed-off-by: Peter Ujfalusi <peter.ujfalusi@ti.com> Acked-by: Linus Walleij <linus.walleij@linaro.org> Link: https://lore.kernel.org/r/20191113094256.1108-6-peter.ujfalusi@ti.com Signed-off-by: Mark Brown <broonie@kernel.org>
2019-11-15spi: imx: Use dma_request_chan() directly for channel requestPeter Ujfalusi
dma_request_slave_channel_reason() is: #define dma_request_slave_channel_reason(dev, name) \ dma_request_chan(dev, name) Signed-off-by: Peter Ujfalusi <peter.ujfalusi@ti.com> Link: https://lore.kernel.org/r/20191113094256.1108-5-peter.ujfalusi@ti.com Signed-off-by: Mark Brown <broonie@kernel.org>
2019-11-15spi: fsl-lpspi: Use dma_request_chan() directly for channel requestPeter Ujfalusi
dma_request_slave_channel_reason() is: #define dma_request_slave_channel_reason(dev, name) \ dma_request_chan(dev, name) Signed-off-by: Peter Ujfalusi <peter.ujfalusi@ti.com> Link: https://lore.kernel.org/r/20191113094256.1108-4-peter.ujfalusi@ti.com Signed-off-by: Mark Brown <broonie@kernel.org>
2019-11-15spi: atmel: Use dma_request_chan() directly for channel requestPeter Ujfalusi
dma_request_slave_channel_reason() is: #define dma_request_slave_channel_reason(dev, name) \ dma_request_chan(dev, name) Signed-off-by: Peter Ujfalusi <peter.ujfalusi@ti.com> Acked-by: Nicolas Ferre <nicolas.ferre@microchip.com> Link: https://lore.kernel.org/r/20191113094256.1108-3-peter.ujfalusi@ti.com Signed-off-by: Mark Brown <broonie@kernel.org>
2019-11-15spi: at91-usart: Use dma_request_chan() directly for channel requestPeter Ujfalusi
dma_request_slave_channel_reason() is: #define dma_request_slave_channel_reason(dev, name) \ dma_request_chan(dev, name) Signed-off-by: Peter Ujfalusi <peter.ujfalusi@ti.com> Acked-by: Nicolas Ferre <nicolas.ferre@microchip.com> Link: https://lore.kernel.org/r/20191113094256.1108-2-peter.ujfalusi@ti.com Signed-off-by: Mark Brown <broonie@kernel.org>
2019-11-15spi: fsl-cpm: Correct the free:ingLinus Walleij
The fsl_spi_cpm_free() function does not make the same checks as the error path in fsl_spi_cpm_init() leading to crashes on error. Cc: Fabio Estevam <festevam@gmail.com> Reported-by: Christophe Leroy <christophe.leroy@c-s.fr> Signed-off-by: Linus Walleij <linus.walleij@linaro.org> Link: https://lore.kernel.org/r/20191113014442.12100-1-linus.walleij@linaro.org Signed-off-by: Mark Brown <broonie@kernel.org>
2019-11-15dt-bindings: mfd: da9062: describe buck modesChristoph Fritz
This patch adds DT description of da9062 buck regulator modes. Signed-off-by: Christoph Fritz <chf.fritz@googlemail.com> Link: https://lore.kernel.org/r/1573652416-9848-4-git-send-email-chf.fritz@googlemail.com Signed-off-by: Mark Brown <broonie@kernel.org>
2019-11-15regulator: da9062: add of_map_mode support for bucksChristoph Fritz
This patch adds of_map_mode support for bucks to set regulator modes from within regulator framework. Signed-off-by: Christoph Fritz <chf.fritz@googlemail.com> Signed-off-by: Christian Hemp <c.hemp@phytec.de> Signed-off-by: Stefan Riedmueller <s.riedmueller@phytec.de> Link: https://lore.kernel.org/r/1573652416-9848-3-git-send-email-chf.fritz@googlemail.com Signed-off-by: Mark Brown <broonie@kernel.org>
2019-11-15regulator: da9062: refactor buck modes into headerChristoph Fritz
This patch refactors buck modes into a header file so that device trees can make use of these mode constants. The new header filename uses da9063 because DA9063 was the earlier chip and its driver code will want updating at some point in a similar manner. Signed-off-by: Christoph Fritz <chf.fritz@googlemail.com> Link: https://lore.kernel.org/r/1573652416-9848-2-git-send-email-chf.fritz@googlemail.com Signed-off-by: Mark Brown <broonie@kernel.org>
2019-11-15regulator: stpmic1: Set a default ramp delay valuePascal Paillet
Set a default ramp delay value to the regulators with the worst case value. Signed-off-by: pascal paillet <p.paillet@st.com> Link: https://lore.kernel.org/r/20191113161529.27739-1-p.paillet@st.com Signed-off-by: Mark Brown <broonie@kernel.org>