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2018-05-16IB/uverbs: Expose MPLS flow spec to the user-kernel ABI headerAriel Levkovich
Add ib_uverbs_flow_spec_mpls to define a rule to match the MPLS protocol. The spec includes the generic specs header, type, size and reserved fields while the filter itself is defined as ib_uverbs_flow_mpls_filter and includes a single 32bit field named 'label' which consists of: Bits 0:19 - The MPLS label. Bits 20:22 - Traffic class field. Bit 23 - Bottom of stack bit. Bits 24:31 - Time to live (TTL) field. Reviewed-by: Mark Bloch <markb@mellanox.com> Signed-off-by: Ariel Levkovich <lariel@mellanox.com> Signed-off-by: Leon Romanovsky <leonro@mellanox.com> Signed-off-by: Jason Gunthorpe <jgg@mellanox.com>
2018-05-16IB/uverbs: Introduce a GRE steering match filterAriel Levkovich
Adding a new GRE steering match filter that can match against key and protocol fields. Reviewed-by: Mark Bloch <markb@mellanox.com> Signed-off-by: Ariel Levkovich <lariel@mellanox.com> Signed-off-by: Leon Romanovsky <leonro@mellanox.com> Signed-off-by: Jason Gunthorpe <jgg@mellanox.com>
2018-05-16IB/uverbs: Expose GRE flow spec to the user-kernel ABI headerAriel Levkovich
Add ib_uverbs_flow_spec_gre to define a rule to match the GRE encapsulation protocol. The spec includes the generic specs header, type, size and reserved fields while the filter itself is defined as ib_uverbs_flow_gre_filter and includes: 1. Checksum present bit, key present bit and version bits in a single 16bit field. 2. Protocol type field - Indicates the ether protocol type of the encapsulated payload. 3. Key field - present if key bit is set and contains an application specific key value. Reviewed-by: Mark Bloch <markb@mellanox.com> Signed-off-by: Ariel Levkovich <lariel@mellanox.com> Signed-off-by: Leon Romanovsky <leonro@mellanox.com> Signed-off-by: Jason Gunthorpe <jgg@mellanox.com>
2018-05-16Merge git://git.kernel.org/pub/scm/linux/kernel/git/bpf/bpf-nextDavid S. Miller
Daniel Borkmann says: ==================== pull-request: bpf-next 2018-05-17 The following pull-request contains BPF updates for your *net-next* tree. The main changes are: 1) Provide a new BPF helper for doing a FIB and neighbor lookup in the kernel tables from an XDP or tc BPF program. The helper provides a fast-path for forwarding packets. The API supports IPv4, IPv6 and MPLS protocols, but currently IPv4 and IPv6 are implemented in this initial work, from David (Ahern). 2) Just a tiny diff but huge feature enabled for nfp driver by extending the BPF offload beyond a pure host processing offload. Offloaded XDP programs are allowed to set the RX queue index and thus opening the door for defining a fully programmable RSS/n-tuple filter replacement. Once BPF decided on a queue already, the device data-path will skip the conventional RSS processing completely, from Jakub. 3) The original sockmap implementation was array based similar to devmap. However unlike devmap where an ifindex has a 1:1 mapping into the map there are use cases with sockets that need to be referenced using longer keys. Hence, sockhash map is added reusing as much of the sockmap code as possible, from John. 4) Introduce BTF ID. The ID is allocatd through an IDR similar as with BPF maps and progs. It also makes BTF accessible to user space via BPF_BTF_GET_FD_BY_ID and adds exposure of the BTF data through BPF_OBJ_GET_INFO_BY_FD, from Martin. 5) Enable BPF stackmap with build_id also in NMI context. Due to the up_read() of current->mm->mmap_sem build_id cannot be parsed. This work defers the up_read() via a per-cpu irq_work so that at least limited support can be enabled, from Song. 6) Various BPF JIT follow-up cleanups and fixups after the LD_ABS/LD_IND JIT conversion as well as implementation of an optimized 32/64 bit immediate load in the arm64 JIT that allows to reduce the number of emitted instructions; in case of tested real-world programs they were shrinking by three percent, from Daniel. 7) Add ifindex parameter to the libbpf loader in order to enable BPF offload support. Right now only iproute2 can load offloaded BPF and this will also enable libbpf for direct integration into other applications, from David (Beckett). 8) Convert the plain text documentation under Documentation/bpf/ into RST format since this is the appropriate standard the kernel is moving to for all documentation. Also add an overview README.rst, from Jesper. 9) Add __printf verification attribute to the bpf_verifier_vlog() helper. Though it uses va_list we can still allow gcc to check the format string, from Mathieu. 10) Fix a bash reference in the BPF selftest's Makefile. The '|& ...' is a bash 4.0+ feature which is not guaranteed to be available when calling out to shell, therefore use a more portable variant, from Joe. 11) Fix a 64 bit division in xdp_umem_reg() by using div_u64() instead of relying on the gcc built-in, from Björn. 12) Fix a sock hashmap kmalloc warning reported by syzbot when an overly large key size is used in hashmap then causing overflows in htab->elem_size. Reject bogus attr->key_size early in the sock_hash_alloc(), from Yonghong. 13) Ensure in BPF selftests when urandom_read is being linked that --build-id is always enabled so that test_stacktrace_build_id[_nmi] won't be failing, from Alexei. 14) Add bitsperlong.h as well as errno.h uapi headers into the tools header infrastructure which point to one of the arch specific uapi headers. This was needed in order to fix a build error on some systems for the BPF selftests, from Sirio. 15) Allow for short options to be used in the xdp_monitor BPF sample code. And also a bpf.h tools uapi header sync in order to fix a selftest build failure. Both from Prashant. 16) More formally clarify the meaning of ID in the direct packet access section of the BPF documentation, from Wang. ==================== Signed-off-by: David S. Miller <davem@davemloft.net>
2018-05-16Merge tag 'trace-v4.17-rc4-2' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/rostedt/linux-trace Pull tracing fix from Steven Rostedt: "Some of the ftrace internal events use a zero for a data size of a field event. This is increasingly important for the histogram trigger work that is being extended. While auditing trace events, I found that a couple of the xen events were used as just marking that a function was called, by creating a static array of size zero. This can play havoc with the tracing features if these events are used, because a zero size of a static array is denoted as a special nul terminated dynamic array (this is what the trace_marker code uses). But since the xen events have no size, they are not nul terminated, and unexpected results may occur. As trace events were never intended on being a marker to denote that a function was hit or not, especially since function tracing and kprobes can trivially do the same, the best course of action is to simply remove these events" * tag 'trace-v4.17-rc4-2' of git://git.kernel.org/pub/scm/linux/kernel/git/rostedt/linux-trace: tracing/x86/xen: Remove zero data size trace events trace_xen_mmu_flush_tlb{_all}
2018-05-17bpf: add __printf verification to bpf_verifier_vlogMathieu Malaterre
__printf is useful to verify format and arguments. ‘bpf_verifier_vlog’ function is used twice in verifier.c in both cases the caller function already uses the __printf gcc attribute. Remove the following warning, triggered with W=1: kernel/bpf/verifier.c:176:2: warning: function might be possible candidate for ‘gnu_printf’ format attribute [-Wsuggest-attribute=format] Signed-off-by: Mathieu Malaterre <malat@debian.org> Signed-off-by: Daniel Borkmann <daniel@iogearbox.net>
2018-05-16rtc: nvmem: don't return an error when not enabledAlexandre Belloni
Avoid reporting an error when RTC_NVMEM is not selected. Reported-by: kernel test robot <xiaolong.ye@intel.com> Signed-off-by: Alexandre Belloni <alexandre.belloni@bootlin.com>
2018-05-16sched: manipulate __QDISC_STATE_RUNNING in qdisc_run_* helpersPaolo Abeni
Currently NOLOCK qdiscs pay a measurable overhead to atomically manipulate the __QDISC_STATE_RUNNING. Such bit is flipped twice per packet in the uncontended scenario with packet rate below the line rate: on packed dequeue and on the next, failing dequeue attempt. This changeset moves the bit manipulation into the qdisc_run_{begin,end} helpers, so that the bit is now flipped only once per packet, with measurable performance improvement in the uncontended scenario. This also allows simplifying the qdisc teardown code path - since qdisc_is_running() is now effective for each qdisc type - and avoid a possible race between qdisc_run() and dev_deactivate_many(), as now the some_qdisc_is_busy() can properly detect NOLOCK qdiscs being busy dequeuing packets. Signed-off-by: Paolo Abeni <pabeni@redhat.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2018-05-16net/mlx5: Fix build break when CONFIG_SMP=nSaeed Mahameed
Avoid using the kernel's irq_descriptor and return IRQ vector affinity directly from the driver. This fixes the following build break when CONFIG_SMP=n include/linux/mlx5/driver.h: In function ‘mlx5_get_vector_affinity_hint’: include/linux/mlx5/driver.h:1299:13: error: ‘struct irq_desc’ has no member named ‘affinity_hint’ Fixes: 6082d9c9c94a ("net/mlx5: Fix mlx5_get_vector_affinity function") Signed-off-by: Saeed Mahameed <saeedm@mellanox.com> CC: Randy Dunlap <rdunlap@infradead.org> CC: Guenter Roeck <linux@roeck-us.net> CC: Thomas Gleixner <tglx@linutronix.de> Tested-by: Israel Rukshin <israelr@mellanox.com> Reported-by: kbuild test robot <lkp@intel.com> Reported-by: Randy Dunlap <rdunlap@infradead.org> Tested-by: Randy Dunlap <rdunlap@infradead.org> Acked-by: Thomas Gleixner <tglx@linutronix.de> Tested-by: Guenter Roeck <linux@roeck-us.net> Signed-off-by: David S. Miller <davem@davemloft.net>
2018-05-16bonding: allow use of tx hashing in balance-albDebabrata Banerjee
The rx load balancing provided by balance-alb is not mutually exclusive with using hashing for tx selection, and should provide a decent speed increase because this eliminates spinlocks and cache contention. Signed-off-by: Debabrata Banerjee <dbanerje@akamai.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2018-05-16fs: copy BTRFS_IOC_[SG]ET_FSLABEL to vfsEric Sandeen
This retains 256 chars as the maximum size through the interface, which is the btrfs limit and AFAIK exceeds any other filesystem's maximum label size. This just copies the ioctl for now and leaves it in place for btrfs for the time being. A later patch will allow btrfs to use the new common ioctl definition, but it may be sent after this is merged. (Note, Reviewed-by's were originally given for the combined vfs+btrfs patch, some license taken here.) Signed-off-by: Eric Sandeen <sandeen@redhat.com> Reviewed-by: Andreas Dilger <adilger@dilger.ca> Reviewed-by: David Sterba <dsterba@suse.com> Reviewed-by: Darrick J. Wong <darrick.wong@oracle.com> Signed-off-by: Darrick J. Wong <darrick.wong@oracle.com>
2018-05-16gpio: dwapb: Add support for 1 interrupt per port A GPIOPhil Edworthy
The DesignWare GPIO IP can be configured for either 1 interrupt or 1 per GPIO in port A, but the driver currently only supports 1 interrupt. See the DesignWare DW_apb_gpio Databook description of the 'GPIO_INTR_IO' parameter. This change allows the driver to work with up to 32 interrupts, it will get as many interrupts as specified in the DT 'interrupts' property. It doesn't do anything clever with the different interrupts, it just calls the same handler used for single interrupt hardware. ACPI companion code provided by Hoan Tran <hotran@apm.com>. This was tested on X-Gene by Hoan. Signed-off-by: Phil Edworthy <phil.edworthy@renesas.com> Reviewed-by: Rob Herring <robh@kernel.org> Acked-by: Lee Jones <lee.jones@linaro.org> Acked-by: Hoan Tran <hotran@apm.com> Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
2018-05-16gpiolib: add hogs support for machine codeBartosz Golaszewski
Board files constitute a significant part of the users of the legacy GPIO framework. In many cases they only export a line and set its desired value. We could use GPIO hogs for that like we do for DT and ACPI but there's no support for that in machine code. This patch proposes to extend the machine.h API with support for registering hog tables in board files. Signed-off-by: Bartosz Golaszewski <brgl@bgdev.pl> Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
2018-05-16locking/percpu-rwsem: Annotate rwsem ownership transfer by setting ↵Waiman Long
RWSEM_OWNER_UNKNOWN The filesystem freezing code needs to transfer ownership of a rwsem embedded in a percpu-rwsem from the task that does the freezing to another one that does the thawing by calling percpu_rwsem_release() after freezing and percpu_rwsem_acquire() before thawing. However, the new rwsem debug code runs afoul with this scheme by warning that the task that releases the rwsem isn't the one that acquires it, as reported by Amir Goldstein: DEBUG_LOCKS_WARN_ON(sem->owner != get_current()) WARNING: CPU: 1 PID: 1401 at /home/amir/build/src/linux/kernel/locking/rwsem.c:133 up_write+0x59/0x79 Call Trace: percpu_up_write+0x1f/0x28 thaw_super_locked+0xdf/0x120 do_vfs_ioctl+0x270/0x5f1 ksys_ioctl+0x52/0x71 __x64_sys_ioctl+0x16/0x19 do_syscall_64+0x5d/0x167 entry_SYSCALL_64_after_hwframe+0x49/0xbe To work properly with the rwsem debug code, we need to annotate that the rwsem ownership is unknown during the tranfer period until a brave soul comes forward to acquire the ownership. During that period, optimistic spinning will be disabled. Reported-by: Amir Goldstein <amir73il@gmail.com> Tested-by: Amir Goldstein <amir73il@gmail.com> Signed-off-by: Waiman Long <longman@redhat.com> Acked-by: Peter Zijlstra <peterz@infradead.org> Cc: Andrew Morton <akpm@linux-foundation.org> Cc: Davidlohr Bueso <dave@stgolabs.net> Cc: Jan Kara <jack@suse.cz> Cc: Linus Torvalds <torvalds@linux-foundation.org> Cc: Matthew Wilcox <willy@infradead.org> Cc: Oleg Nesterov <oleg@redhat.com> Cc: Paul E. McKenney <paulmck@linux.vnet.ibm.com> Cc: Theodore Y. Ts'o <tytso@mit.edu> Cc: Thomas Gleixner <tglx@linutronix.de> Cc: Will Deacon <will.deacon@arm.com> Cc: linux-fsdevel@vger.kernel.org Link: http://lkml.kernel.org/r/1526420991-21213-3-git-send-email-longman@redhat.com Signed-off-by: Ingo Molnar <mingo@kernel.org>
2018-05-16mfd: axp20x: Correct AXP806 POK interrupt prefixChen-Yu Tsai
When AXP806 support was added, POK was incorrectly expanded to PWROK. However, the datasheet lists them as POK[LSNP], which is the same as on the AXP288. Furthermore, the registers associated with POK functions are the same as the PEK on the other AXP PMICs. This suggests that "POK" means "Power On Key", much like "PEK" means "Power Enable Key", instead of "Power OK". This patch changes the "PWROK" prefix to "POK" for these interrupts. Signed-off-by: Chen-Yu Tsai <wens@csie.org> Signed-off-by: Lee Jones <lee.jones@linaro.org>
2018-05-16mfd: axp20x: Constify struct mfd_cell and struct resourceChen-Yu Tsai
The axp20x driver has lots of mfd_cell and resource structs. These can all be const-ified. Signed-off-by: Chen-Yu Tsai <wens@csie.org> Signed-off-by: Lee Jones <lee.jones@linaro.org>
2018-05-16mfd: arizona: Update reset pin to use GPIODCharles Keepax
Now GPIOD has support for both pdata systems and for non-standard DT bindings the Arizona reset GPIO can be converted to use it. Worth noting gpiod_set_raw_value_cansleep is used to match the behaviour of the old GPIOs. This is because the part is fairly widely used and it is unknown how many DTs are correctly setting active low through device tree, so to avoid breaking any existing users it is best to match the previous behaviour. Signed-off-by: Charles Keepax <ckeepax@opensource.cirrus.com> Reviewed-by: Linus Walleij <linus.walleij@linaro.org> Signed-off-by: Lee Jones <lee.jones@linaro.org>
2018-05-16Revert "mfd: cros_ec: Add ACPI GPE handler for LID0 devices"Wenkai Du
This reverts commit e04653a9dcf4d98defe2149c885382e5cc72082f. It is no longer needed to install Chrome EC GPE handler to have GPE enabled in suspend to idle path. It is found that with this handler installed, EC wake up doesn't work because default EC event handler that can wake up system is not getting called. Signed-off-by: Wenkai Du <wenkai.du@intel.com> Acked-by: Benson Leung <bleung@chromium.org> Signed-off-by: Lee Jones <lee.jones@linaro.org>
2018-05-16mfd: Update to SPDX license identifierRajmohan Mani
Remove the GPL v2 license boilerplate and update with the SPDX license identifier. Signed-off-by: Rajmohan Mani <rajmohan.mani@intel.com> Signed-off-by: Lee Jones <lee.jones@linaro.org>
2018-05-16mfd: tps65218: Reorder tps65218_regulator_id enumDave Gerlach
Commit 2dc4940360d4 ("regulator: tps65218: Remove all the compatibles") changes the probe function of drivers/regulator/tps65218-regulator.c so that it iterates through all available regulators and assumes that the regulator IDs are sequential and match the order present in the enum tps65218_regulator_id. However, for some reason the much older commit c0ea88b890d6 ("regulator: tps65218: add support for LS3 current regulator") updated all arrays with LS3 at the end but added it second to last for the enum. Because of this long standing mismatch in order between the tps65218_regulator_id enum and the regulator_desc array in the tps65218 regulator driver, the new probe function causes the strobe values to be associated with the wrong regulator ID. This causes LDO1 to fail to suspend in tps65218_pmic_set_suspend_disable due to not having anything probes for its strobe value. Fix the order in the enum so the probe function works as the update intended. Fixes: 2dc4940360d4 ("regulator: tps65218: Remove all the compatibles") Signed-off-by: Dave Gerlach <d-gerlach@ti.com> Signed-off-by: Lee Jones <lee.jones@linaro.org>
2018-05-16mfd: syscon: Remove unused Exynos PMU headersKrzysztof Kozlowski
Since commit 5812f0106c44 ("phy: exynos4: Remove duplicated defines of PHY register defines") and commit 7a66647b25b6 ("phy: exynos: Use one define for enable bit") all users of syscon Exynos PMU headers (for PHY drivers) are converted to use different headers so these can be removed. Signed-off-by: Krzysztof Kozlowski <krzk@kernel.org> Signed-off-by: Lee Jones <lee.jones@linaro.org>
2018-05-16Merge tags 'ib-mfd-hwmon-v4.18', 'ib-mfd-input-rtc-v4.18' and ↵Lee Jones
'ib-mfd-pwm-v4.18' into ibs-for-mfd-merged Immutable branch between MFD and HWMON due for the v4.18 merge window Immutable branch between MFD, Input and RTC due for the v4.18 merge window Immutable branch between MFD and PWM due for the v4.18 merge window
2018-05-16pwm: stm32: Use input prescaler to improve period captureFabrice Gasnier
Using input prescaler, capture unit will trigger DMA once every configurable /2, /4 or /8 events (rising edge). This helps improve period (only) capture accuracy at high rates. Signed-off-by: Fabrice Gasnier <fabrice.gasnier@st.com> Reviewed-by: Benjamin Gaignard <benjamin.gaignard@linaro.org> Acked-by: Thierry Reding <thierry.reding@gmail.com> Signed-off-by: Lee Jones <lee.jones@linaro.org>
2018-05-16pwm: stm32: Add capture supportFabrice Gasnier
Add support for PMW input mode on pwm-stm32. STM32 timers support period and duty cycle capture as long as they have at least two PWM channels. One capture channel is used for period (rising-edge), one for duty-cycle (falling-edge). When there's only one channel available, only period can be captured. Duty-cycle is simply zero'ed in such a case. Capture requires exclusive access (e.g. no pwm output running at the same time, to protect common prescaler). Timer DMA burst mode (from MFD core) is being used, to take two snapshots of capture registers (upon each period rising edge). Signed-off-by: Fabrice Gasnier <fabrice.gasnier@st.com> Reviewed-by: Benjamin Gaignard <benjamin.gaignard@linaro.org> Acked-by: Thierry Reding <thierry.reding@gmail.com> Signed-off-by: Lee Jones <lee.jones@linaro.org>
2018-05-16mfd: stm32-timers: Add support for DMAsFabrice Gasnier
STM32 Timers can support up to 7 DMA requests: - 4 channels, update, compare and trigger. Optionally request part, or all DMAs from stm32-timers MFD core. Also add routine to implement burst reads using DMA from timer registers. This is exported. So, it can be used by child drivers, PWM capture for instance (but not limited to). Signed-off-by: Fabrice Gasnier <fabrice.gasnier@st.com> Reviewed-by: Benjamin Gaignard <benjamin.gaignard@linaro.org> Signed-off-by: Lee Jones <lee.jones@linaro.org>
2018-05-16Merge branch 'for-mingo' of ↵Ingo Molnar
git://git.kernel.org/pub/scm/linux/kernel/git/paulmck/linux-rcu into core/rcu - Updates to the handling of expedited grace periods, perhaps most notably parallelizing their initialization. Other changes include fixes from Boqun Feng. - Miscellaneous fixes. These include an nvme fix from Nitzan Carmi that I am carrying because it depends on a new SRCU function cleanup_srcu_struct_quiesced(). This branch also includes fixes from Byungchul Park and Yury Norov. - Updates to reduce lock contention in the rcu_node combining tree. These are in preparation for the consolidation of RCU-bh, RCU-preempt, and RCU-sched into a single flavor, which was requested by Linus Torvalds in response to a security flaw whose root cause included confusion between the multiple flavors of RCU. - Torture-test updates that save their users some time and effort. Conflicts: drivers/nvme/host/core.c Signed-off-by: Ingo Molnar <mingo@kernel.org>
2018-05-16tty: replace ->proc_fops with ->proc_showChristoph Hellwig
Just set up the show callback in the tty_operations, and use proc_create_single_data to create the file without additional boilerplace code. Signed-off-by: Christoph Hellwig <hch@lst.de>
2018-05-16ide: replace ->proc_fops with ->proc_showChristoph Hellwig
Just set up the show callback in the tty_operations, and use proc_create_single_data to create the file without additional boilerplace code. Signed-off-by: Christoph Hellwig <hch@lst.de>
2018-05-16isdn: replace ->proc_fops with ->proc_showChristoph Hellwig
And switch to proc_create_single_data. Signed-off-by: Christoph Hellwig <hch@lst.de>
2018-05-16proc: introduce proc_create_net_singleChristoph Hellwig
Variant of proc_create_data that directly take a seq_file show callback and deals with network namespaces in ->open and ->release. All callers of proc_create + single_open_net converted over, and single_{open,release}_net are removed entirely. Signed-off-by: Christoph Hellwig <hch@lst.de>
2018-05-16proc: introduce proc_create_net{,_data}Christoph Hellwig
Variants of proc_create{,_data} that directly take a struct seq_operations and deal with network namespaces in ->open and ->release. All callers of proc_create + seq_open_net converted over, and seq_{open,release}_net are removed entirely. Signed-off-by: Christoph Hellwig <hch@lst.de>
2018-05-16net: move seq_file_single_net to <linux/seq_file_net.h>Christoph Hellwig
This helper deals with single_{open,release}_net internals and thus belongs here. Signed-off-by: Christoph Hellwig <hch@lst.de>
2018-05-16ipv{4,6}/raw: simplify ѕeq_file codeChristoph Hellwig
Pass the hashtable to the proc private data instead of copying it into the per-file private data. Signed-off-by: Christoph Hellwig <hch@lst.de>
2018-05-16ipv{4,6}/ping: simplify proc file creationChristoph Hellwig
Remove the pointless ping_seq_afinfo indirection and make the code look like most other protocols. Signed-off-by: Christoph Hellwig <hch@lst.de>
2018-05-16ipv{4,6}/tcp: simplify procfs registrationChristoph Hellwig
Avoid most of the afinfo indirections and just call the proc helpers directly. Signed-off-by: Christoph Hellwig <hch@lst.de>
2018-05-16ipv{4,6}/udp{,lite}: simplify proc registrationChristoph Hellwig
Remove a couple indirections to make the code look like most other protocols. Signed-off-by: Christoph Hellwig <hch@lst.de>
2018-05-16proc: introduce proc_create_single{,_data}Christoph Hellwig
Variants of proc_create{,_data} that directly take a seq_file show callback and drastically reduces the boilerplate code in the callers. All trivial callers converted over. Signed-off-by: Christoph Hellwig <hch@lst.de>
2018-05-16proc: introduce proc_create_seq_privateChristoph Hellwig
Variant of proc_create_data that directly take a struct seq_operations argument + a private state size and drastically reduces the boilerplate code in the callers. All trivial callers converted over. Signed-off-by: Christoph Hellwig <hch@lst.de>
2018-05-16proc: introduce proc_create_seq{,_data}Christoph Hellwig
Variants of proc_create{,_data} that directly take a struct seq_operations argument and drastically reduces the boilerplate code in the callers. All trivial callers converted over. Signed-off-by: Christoph Hellwig <hch@lst.de>
2018-05-16proc: introduce a proc_pid_ns helperChristoph Hellwig
Factor out retrieving the per-sb pid namespaces from the sb private data into an easier to understand helper. Suggested-by: Eric W. Biederman <ebiederm@xmission.com> Signed-off-by: Christoph Hellwig <hch@lst.de>
2018-05-15iomap: add a swapfile activation functionDarrick J. Wong
Add a new iomap_swapfile_activate function so that filesystems can activate swap files without having to use the obsolete and slow bmap function. This enables XFS to support fallocate'd swap files and swap files on realtime devices. Signed-off-by: Darrick J. Wong <darrick.wong@oracle.com> Reviewed-by: Jan Kara <jack@suse.cz>
2018-05-15IB/umem: Use the correct mm during ib_umem_releaseLidong Chen
User-space may invoke ibv_reg_mr and ibv_dereg_mr in different threads. If ibv_dereg_mr is called after the thread which invoked ibv_reg_mr has exited, get_pid_task will return NULL and ib_umem_release will not decrease mm->pinned_vm. Instead of using threads to locate the mm, use the overall tgid from the ib_ucontext struct instead. This matches the behavior of ODP and disassociate in handling the mm of the process that called ibv_reg_mr. Cc: <stable@vger.kernel.org> Fixes: 87773dd56d54 ("IB: ib_umem_release() should decrement mm->pinned_vm from ib_umem_get") Signed-off-by: Lidong Chen <lidongchen@tencent.com> Signed-off-by: Jason Gunthorpe <jgg@mellanox.com>
2018-05-16Merge branch 'drm-next-4.18' of git://people.freedesktop.org/~agd5f/linux ↵Dave Airlie
into drm-next Main changes for 4.18. I'd like to do a separate pull for vega20 later this week or next. Highlights: - Reserve pre-OS scanout buffer during init for seemless transition from console to driver - VEGAM support - Improved GPU scheduler documentation - Initial gfxoff support for raven - SR-IOV fixes - Default to non-AGP on PowerPC for radeon - Fine grained clock voltage control for vega10 - Power profiles for vega10 - Further clean up of powerplay/driver interface - Underlay fixes - Display link bw updates - Gamma fixes - Scatter/Gather display support on CZ/ST - Misc bug fixes and clean ups [airlied: fixup v3d vs scheduler API change] Link: https://patchwork.freedesktop.org/patch/msgid/20180515185450.1113-1-alexander.deucher@amd.com Signed-off-by: Dave Airlie <airlied@redhat.com>
2018-05-15clk: imx: Add new clo01 and clo2 controlled by CCOSRMichael Trimarchi
osc->cko2_sel->cko2_podf->clk_cko2->clk_cko Example of usage to provide clock to the sgtl5000 codec: sgtl5000@0a { compatible = "fsl,sgtl5000"; reg = <0x0a>; clocks = <&clks IMX6UL_CLK_OSC>; #sound-dai-cells = <0>; clocks = <&clks IMX6UL_CLK_CKO>; assigned-clocks = <&clks IMX6UL_CLK_CKO2_SEL>, <&clks IMX6UL_CLK_CKO2_PODF>, <&clks IMX6UL_CLK_CKO2>, <&clks IMX6UL_CLK_CKO>; assigned-clock-parents = <&clks IMX6UL_CLK_OSC>, <&clks IMX6UL_CLK_CKO2_SEL>, <&clks IMX6UL_CLK_CKO2_PODF>, <&clks IMX6UL_CLK_CKO2>; clock-names = "mclk"; wlf,shared-lrclk; Signed-off-by: Matteo Lisi <matteo.lisi@engicam.com> Signed-off-by: Michael Trimarchi <michael@amarulasolutions.com> Tested-by: Michael Trimarchi <michael@amarulasolutions.com> Reviewed-by: Fabio Estevam <fabio.estevam@nxp.com> Signed-off-by: Stephen Boyd <sboyd@kernel.org>
2018-05-15dt-bindings: reset: mediatek: add entry for Mali-450 node to referSean Wang
Just add binding for a required reset referenced by Mali-450 on MT7623 or MT2701 SoC. Cc: devicetree@vger.kernel.org Signed-off-by: Sean Wang <sean.wang@mediatek.com> Reviewed-by: Rob Herring <robh@kernel.org> Signed-off-by: Stephen Boyd <sboyd@kernel.org>
2018-05-15dt-bindings: clock: mediatek: add entry for Mali-450 node to referSean Wang
Just add binding for a required clock referenced by Mali-450 on MT7623 or MT2701 SoC. Cc: devicetree@vger.kernel.org Signed-off-by: Sean Wang <sean.wang@mediatek.com> Reviewed-by: Rob Herring <robh@kernel.org> Signed-off-by: Stephen Boyd <sboyd@kernel.org>
2018-05-15clk: mediatek: correct the clocks for MT2701 HDMI PHY moduleRyder Lee
The hdmitx_dig_cts clock signal is not a child of clk26m, and the actual output of the PLL block is derived from the tvdpll via a configurable PLL post-divider. It is used as the PLL reference input to the HDMI PHY module. Fixes: e9862118272a ("clk: mediatek: Add MT2701 clock support") Signed-off-by: Chunhui Dai <chunhui.dai@mediatek.com> Signed-off-by: Ryder Lee <ryder.lee@mediatek.com> Signed-off-by: Stephen Boyd <sboyd@kernel.org>
2018-05-15clk: hisilicon: add missing usb3 clocks for Hi3798CV200 SoCJianguo Sun
There are two USB3 host controllers on Hi3798CV200 SoC. This commit adds missing clocks for them. Signed-off-by: Jianguo Sun <sunjianguo1@huawei.com> Signed-off-by: Stephen Boyd <sboyd@kernel.org>
2018-05-15clk:aspeed: Fix reset bits for PCI/VGA and PECIJae Hyun Yoo
This commit fixes incorrect setting of reset bits for PCI/VGA and PECI modules. 1. Reset bit for PCI/VGA is 8. 2. PECI reset bit is missing so added bit 10 as its reset bit. Signed-off-by: Jae Hyun Yoo <jae.hyun.yoo@linux.intel.com> Fixes: 15ed8ce5f84e ("clk: aspeed: Register gated clocks") Cc: stable <stable@vger.kernel.org> Signed-off-by: Stephen Boyd <sboyd@kernel.org>
2018-05-15clk: aspeed: Support second reset registerJoel Stanley
The ast2500 has an additional reset register that contains resets not present in the ast2400. This enables support for this register, and adds the one reset line that is controlled by it. Reviewed-by: Andrew Jeffery <andrew@aj.id.au> Signed-off-by: Joel Stanley <joel@jms.id.au> Signed-off-by: Stephen Boyd <sboyd@kernel.org>