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2019-02-08RDMA/devices: Use xarray to store the client_dataJason Gunthorpe
Now that we have a small ID for each client we can use xarray instead of linearly searching linked lists for client data. This will give much faster and scalable client data lookup, and will lets us revise the locking scheme. Since xarray can store 'going_down' using a mark just entirely eliminate the struct ib_client_data and directly store the client_data value in the xarray. However this does require a special iterator as we must still iterate over any NULL client_data values. Also eliminate the client_data_lock in favour of internal xarray locking. Signed-off-by: Jason Gunthorpe <jgg@mellanox.com>
2019-02-08RDMA/devices: Use xarray to store the clientsJason Gunthorpe
This gives each client a unique ID and will let us move client_data to use xarray, and revise the locking scheme. clients have to be add/removed in strict FIFO/LIFO order as they interdepend. To support this the client_ids are assigned to increase in FIFO order. The existing linked list is kept to support reverse iteration until xarray can get a reverse iteration API. Signed-off-by: Jason Gunthorpe <jgg@mellanox.com> Reviewed-by: Parav Pandit <parav@mellanox.com>
2019-02-08RDMA/device: Get rid of reg_stateJason Gunthorpe
This really has no purpose anymore, refcount can be used to tell if the device is still registered. Keeping it around just invites mis-use. Signed-off-by: Jason Gunthorpe <jgg@mellanox.com> Reviewed-by: Parav Pandit <parav@mellanox.com>
2019-02-08RDMA: Handle PD allocations by IB/coreLeon Romanovsky
The PD allocations in IB/core allows us to simplify drivers and their error flows in their .alloc_pd() paths. The changes in .alloc_pd() go hand in had with relevant update in .dealloc_pd(). We will use this opportunity and convert .dealloc_pd() to don't fail, as it was suggested a long time ago, failures are not happening as we have never seen a WARN_ON print. Signed-off-by: Leon Romanovsky <leonro@mellanox.com> Signed-off-by: Jason Gunthorpe <jgg@mellanox.com>
2019-02-08RDMA/core: Share driver structure size with coreLeon Romanovsky
Add new macros to be used in drivers while registering ops structure and IB/core while calling allocation routines, so drivers won't need to perform kzalloc/kfree in their paths. The change in allocation stage allows us to initialize common fields prior to calling to drivers (e.g. restrack). Signed-off-by: Leon Romanovsky <leonro@mellanox.com> Signed-off-by: Jason Gunthorpe <jgg@mellanox.com>
2019-02-08Merge branch 'for-linus' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/ebiederm/user-namespace Pull signal fixes from Eric Biederman: "This contains four small fixes for signal handling. A missing range check, a regression fix, prioritizing signals we have already started a signal group exit for, and better detection of synchronous signals. The confused decision of which signals to handle failed spectacularly when a timer was pointed at SIGBUS and the stack overflowed. Resulting in an unkillable process in an infinite loop instead of a SIGSEGV and core dump" * 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/ebiederm/user-namespace: signal: Better detection of synchronous signals signal: Always notice exiting tasks signal: Always attempt to allocate siginfo for SIGSTOP signal: Make siginmask safe when passed a signal of 0
2019-02-08IB/core: Don't register each MAD agent for LSM notifierDaniel Jurgens
When creating many MAD agents in a short period of time, receive packet processing can be delayed long enough to cause timeouts while new agents are being added to the atomic notifier chain with IRQs disabled. Notifier chain registration and unregstration is an O(n) operation. With large numbers of MAD agents being created and destroyed simultaneously the CPUs spend too much time with interrupts disabled. Instead of each MAD agent registering for it's own LSM notification, maintain a list of agents internally and register once, this registration already existed for handling the PKeys. This list is write mostly, so a normal spin lock is used vs a read/write lock. All MAD agents must be checked, so a single list is used instead of breaking them down per device. Notifier calls are done under rcu_read_lock, so there isn't a risk of similar packet timeouts while checking the MAD agents security settings when notified. Signed-off-by: Daniel Jurgens <danielj@mellanox.com> Reviewed-by: Parav Pandit <parav@mellanox.com> Signed-off-by: Leon Romanovsky <leonro@mellanox.com> Acked-by: Paul Moore <paul@paul-moore.com> Signed-off-by: Jason Gunthorpe <jgg@mellanox.com>
2019-02-08IB/core: Eliminate a hole in MAD agent structDaniel Jurgens
Move the security related fields above the u8s to eliminate a hole in the struct. pahole before: struct ib_mad_agent { ... u32 hi_tid; /* 48 4 */ u32 flags; /* 52 4 */ u8 port_num; /* 56 1 */ u8 rmpp_version; /* 57 1 */ /* XXX 6 bytes hole, try to pack */ /* --- cacheline 1 boundary (64 bytes) --- */ void * security; /* 64 8 */ bool smp_allowed; /* 72 1 */ bool lsm_nb_reg; /* 73 1 */ /* XXX 6 bytes hole, try to pack */ struct notifier_block lsm_nb; /* 80 24 */ /* XXX last struct has 4 bytes of padding */ /* size: 104, cachelines: 2, members: 14 */ ... }; pahole after: struct ib_mad_agent { ... u32 hi_tid; /* 48 4 */ u32 flags; /* 52 4 */ void * security; /* 56 8 */ /* --- cacheline 1 boundary (64 bytes) --- */ struct notifier_block lsm_nb; /* 64 24 */ /* XXX last struct has 4 bytes of padding */ u8 port_num; /* 88 1 */ u8 rmpp_version; /* 89 1 */ bool smp_allowed; /* 90 1 */ bool lsm_nb_reg; /* 91 1 */ /* size: 96, cachelines: 2, members: 14 */ ... }; Signed-off-by: Daniel Jurgens <danielj@mellanox.com> Reviewed-by: Parav Pandit <parav@mellanox.com> Signed-off-by: Leon Romanovsky <leonro@mellanox.com> Signed-off-by: Jason Gunthorpe <jgg@mellanox.com>
2019-02-08RDMA/iwcm: add tos_set bool to iw_cm structSteve Wise
This allows drivers to know the tos was actively set by the application. Signed-off-by: Steve Wise <swise@opengridcomputing.com> Signed-off-by: Jason Gunthorpe <jgg@mellanox.com>
2019-02-08IB/cma: Define option to set ack timeout and pack tos_setDanit Goldberg
Define new option in 'rdma_set_option' to override calculated QP timeout when requested to provide QP attributes to modify a QP. At the same time, pack tos_set to be bitfield. Signed-off-by: Danit Goldberg <danitg@mellanox.com> Reviewed-by: Moni Shoua <monis@mellanox.com> Signed-off-by: Leon Romanovsky <leonro@mellanox.com> Reviewed-by: Parav Pandit <parav@mellanox.com> Signed-off-by: Jason Gunthorpe <jgg@mellanox.com>
2019-02-08mlxsw: spectrum_acl: Add couple of vregion rehash tracepointsJiri Pirko
As vregion rehash is happening in delayed work, add some visibility to the process using a few tracepoints. Signed-off-by: Jiri Pirko <jiri@mellanox.com> Signed-off-by: Ido Schimmel <idosch@mellanox.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2019-02-08lib: objagg: add root count to statsJiri Pirko
Count number of roots and add it to stats. It is handy for the library user to have this stats available as it can act upon it without counting roots itself. Signed-off-by: Jiri Pirko <jiri@mellanox.com> Signed-off-by: Ido Schimmel <idosch@mellanox.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2019-02-08lib: objagg: implement optimization hints assembly and use hints for object ↵Jiri Pirko
creation Implement simple greedy algo to find more optimized root-delta tree for a given objagg instance. This "hints" can be used by a driver to: 1) check if the hints are better (driver's choice) than the original objagg tree. Driver does comparison of objagg stats and hints stats. 2) use the hints to create a new objagg instance which will construct the root-delta tree according to the passed hints. Currently, only a simple greedy algorithm is implemented. Basically it finds the roots according to the maximal possible user count including deltas. Signed-off-by: Jiri Pirko <jiri@mellanox.com> Signed-off-by: Ido Schimmel <idosch@mellanox.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2019-02-08devlink: publish params only after driver init is doneJiri Pirko
Currently, user can do dump or get of param values right after the devlink params are registered. However the driver may not be initialized which is an issue. The same problem happens during notification upon param registration. Allow driver to publish devlink params whenever it is ready to handle get() ops. Note that this cannot be resolved by init reordering, as the "driverinit" params have to be available before the driver is initialized (it needs the param values there). Signed-off-by: Jiri Pirko <jiri@mellanox.com> Cc: Michael Chan <michael.chan@broadcom.com> Cc: Tariq Toukan <tariqt@mellanox.com> Signed-off-by: Ido Schimmel <idosch@mellanox.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2019-02-08Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/netDavid S. Miller
An ipvlan bug fix in 'net' conflicted with the abstraction away of the IPV6 specific support in 'net-next'. Similarly, a bug fix for mlx5 in 'net' conflicted with the flow action conversion in 'net-next'. Signed-off-by: David S. Miller <davem@davemloft.net>
2019-02-08scsi: ata: Use unsigned int for cmd's type in ioctls in scsi_host_templateNathan Chancellor
Clang warns several times in the scsi subsystem (trimmed for brevity): drivers/scsi/hpsa.c:6209:7: warning: overflow converting case value to switch condition type (2147762695 to 18446744071562347015) [-Wswitch] case CCISS_GETBUSTYPES: ^ drivers/scsi/hpsa.c:6208:7: warning: overflow converting case value to switch condition type (2147762694 to 18446744071562347014) [-Wswitch] case CCISS_GETHEARTBEAT: ^ The root cause is that the _IOC macro can generate really large numbers, which don't fit into type 'int', which is used for the cmd parameter in the ioctls in scsi_host_template. My research into how GCC and Clang are handling this at a low level didn't prove fruitful. However, looking at the rest of the kernel tree, all ioctls use an 'unsigned int' for the cmd parameter, which will fit all of the _IOC values in the scsi/ata subsystems. Make that change because none of the ioctls expect a negative value for any command, it brings the ioctls inline with the reset of the kernel, and it removes ambiguity, which is never good when dealing with compilers. Link: https://github.com/ClangBuiltLinux/linux/issues/85 Link: https://github.com/ClangBuiltLinux/linux/issues/154 Link: https://github.com/ClangBuiltLinux/linux/issues/157 Signed-off-by: Nathan Chancellor <natechancellor@gmail.com> Acked-by: Bradley Grove <bgrove@attotech.com> Acked-by: Don Brace <don.brace@microsemi.com> Reviewed-by: Bart Van Assche <bvanassche@acm.org> Tested-by: Nick Desaulniers <ndesaulniers@google.com> Reviewed-by: Christoph Hellwig <hch@lst.de> Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2019-02-08drm/dsc: Add kernel documentation for DRM DP DSC helpersManasi Navare
This patch adds appropriate kernel documentation for DRM DP helpers used for enabling Display Stream compression functionality in drm_dp_helper.h and drm_dp_helper.c as well as for the DSC spec related structure definitions and helpers in drm_dsc.c and drm_dsc.h Also add links between the functions and structures in the documentation. v3: * Fix the checkpatch warnings (Sean Paul) v2: * Add inline comments for longer structs (Daniel Vetter) * Split the summary and description (Daniel Vetter) Suggested-by: Daniel Vetter <daniel.vetter@intel.com> Suggested-by: Sean Paul <sean@poorly.run> Cc: Daniel Vetter <daniel.vetter@intel.com> Cc: Sean Paul <sean@poorly.run> Signed-off-by: Manasi Navare <manasi.d.navare@intel.com> Acked-by: Sean Paul <sean@poorly.run> Reviewed-by: Daniel Vetter <daniel.vetter@intel.com> Link: https://patchwork.freedesktop.org/patch/msgid/20190206213148.21390-1-manasi.d.navare@intel.com
2019-02-08i2c: cbus-gpio: Switch to use GPIO descriptorsLinus Walleij
This augments the CBUS GPIO I2C driver to use GPIO descriptors for clock, sel and data. We drop the platform data that was only used for carrying GPIO numbers and use machine descriptor tables instead. Signed-off-by: Linus Walleij <linus.walleij@linaro.org> Tested-by: Aaro Koskinen <aaro.koskinen@iki.fi> Acked-by: Tony Lindgren <tony@atomide.com> Signed-off-by: Wolfram Sang <wsa@the-dreams.de>
2019-02-08drm/fourcc: Add new P010, P016 video formatRandy Li
P010 is a planar 4:2:0 YUV with interleaved UV plane, 10 bits per channel video format. P012 is a planar 4:2:0 YUV 12 bits per channel P016 is a planar 4:2:0 YUV with interleaved UV plane, 16 bits per channel video format. V3: Added P012 and fixed cpp for P010. V4: format definition refined per review. V5: Format comment block for each new pixel format. V6: reversed Cb/Cr order in comments. v7: reversed Cb/Cr order in comments of header files, remove the wrong part of commit message. V8: reversed V7 changes except commit message and rebased. v9: used the new properties to describe those format and rebased. Cc: Daniel Stone <daniel@fooishbar.org> Cc: Ville Syrjälä <ville.syrjala@linux.intel.com> Signed-off-by: Randy Li <ayaka@soulik.info> Signed-off-by: Clint Taylor <clinton.a.taylor@intel.com> Reviewed-by: Ayan Kumar Halder <ayan.halder@arm.com> Reviewed-by: Neil Armstrong <narmstrong@baylibre.com> Reviewed-by: Daniel Vetter <daniel.vetter@ffwll.ch> Signed-off-by: Neil Armstrong <narmstrong@baylibre.com> Link: https://patchwork.freedesktop.org/patch/msgid/20190109195710.28501-2-ayaka@soulik.info
2019-02-08genirq/msi: Clean up usage of __u8/__u16 typesLogan Gunthorpe
The double underscore types are meant for compatibility in userspace headers which does not apply here. Therefore, change to use the standard no-underscore types. The origin of the double underscore types dates back to before the git era so I was not able to find a commit to see the original justification. Signed-off-by: Logan Gunthorpe <logang@deltatee.com> Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
2019-02-08Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/netLinus Torvalds
Pull networking fixes from David Miller: "This pull request is dedicated to the upcoming snowpocalypse parts 2 and 3 in the Pacific Northwest: 1) Drop profiles are broken because some drivers use dev_kfree_skb* instead of dev_consume_skb*, from Yang Wei. 2) Fix IWLWIFI kconfig deps, from Luca Coelho. 3) Fix percpu maps updating in bpftool, from Paolo Abeni. 4) Missing station release in batman-adv, from Felix Fietkau. 5) Fix some networking compat ioctl bugs, from Johannes Berg. 6) ucc_geth must reset the BQL queue state when stopping the device, from Mathias Thore. 7) Several XDP bug fixes in virtio_net from Toshiaki Makita. 8) TSO packets must be sent always on queue 0 in stmmac, from Jose Abreu. 9) Fix socket refcounting bug in RDS, from Eric Dumazet. 10) Handle sparse cpu allocations in bpf selftests, from Martynas Pumputis. 11) Make sure mgmt frames have enough tailroom in mac80211, from Felix Feitkau. 12) Use safe list walking in sctp_sendmsg() asoc list traversal, from Greg Kroah-Hartman. 13) Make DCCP's ccid_hc_[rt]x_parse_options always check for NULL ccid, from Eric Dumazet. 14) Need to reload WoL password into bcmsysport device after deep sleeps, from Florian Fainelli. 15) Remove filter from mask before freeing in cls_flower, from Petr Machata. 16) Missing release and use after free in error paths of s390 qeth code, from Julian Wiedmann. 17) Fix lockdep false positive in dsa code, from Marc Zyngier. 18) Fix counting of ATU violations in mv88e6xxx, from Andrew Lunn. 19) Fix EQ firmware assert in qed driver, from Manish Chopra. 20) Don't default Caivum PTP to Y in kconfig, from Bjorn Helgaas" * git://git.kernel.org/pub/scm/linux/kernel/git/davem/net: (116 commits) net: dsa: b53: Fix for failure when irq is not defined in dt sit: check if IPv6 enabled before calling ip6_err_gen_icmpv6_unreach() geneve: should not call rt6_lookup() when ipv6 was disabled net: Don't default Cavium PTP driver to 'y' net: broadcom: replace dev_kfree_skb_irq by dev_consume_skb_irq for drop profiles net: via-velocity: replace dev_kfree_skb_irq by dev_consume_skb_irq for drop profiles net: tehuti: replace dev_kfree_skb_irq by dev_consume_skb_irq for drop profiles net: sun: replace dev_kfree_skb_irq by dev_consume_skb_irq for drop profiles net: fsl_ucc_hdlc: replace dev_kfree_skb_irq by dev_consume_skb_irq for drop profiles net: fec_mpc52xx: replace dev_kfree_skb_irq by dev_consume_skb_irq for drop profiles net: smsc: epic100: replace dev_kfree_skb_irq by dev_consume_skb_irq for drop profiles net: dscc4: replace dev_kfree_skb_irq by dev_consume_skb_irq for drop profiles net: tulip: de2104x: replace dev_kfree_skb_irq by dev_consume_skb_irq for drop profiles net: defxx: replace dev_kfree_skb_irq by dev_consume_skb_irq for drop profiles net/mlx5e: Don't overwrite pedit action when multiple pedit used net/mlx5e: Update hw flows when encap source mac changed qed*: Advance drivers version to 8.37.0.20 qed: Change verbosity for coalescing message. qede: Fix system crash on configuring channels. qed: Consider TX tcs while deriving the max num_queues for PF. ...
2019-02-08ASoC: core: don't increase component module refcount unconditionallyPierre-Louis Bossart
The ASoC core has for the longest time increased the module reference counts, even before the transition to the component model. This is probably fine on most platforms, but it introduces a deadlock case on Intel devices with the Skylake and SOF drivers which cannot be removed due to their reference counts being modified by the core. In these 2 cases, the PCI or ACPI driver .probe creates a platform device to let the machine driver .probe register the audio card. Conversely the PCI or ACPI driver .remove will unregister the platform device which results in the card being removed by the machine driver .remove. With ascii art, this can be represented as modprobe snd_soc_skl/ soc-pci-dev/sof-acpci-dev ----------> pci/acpi probe ^ | | ---------------| | | | | V V increase register register machine refcount component platform_device ^ | | | | V component <---- register card <---- probe probe The issue is that by playing with the component's module reference counts during the card registration, it's no longer possible to remove the module which controls the component. This can be shown, e.g. with the following error: root@plb-XPS-13-9350:~# lsmod | grep snd_soc_skl snd_soc_skl 110592 1 root@plb-XPS-13-9350:~# rmmod snd_soc_skl rmmod: ERROR: Module snd_soc_skl is in use Increasing the reference count during the component probe is not useful. If the PCI/ACPI module is removed, the card will be removed anyway. To avoid breaking existing platforms and allowing Intel platforms to safely deal with module load/unload cases, this patch introduces a flag which needs to be set during the component initialization. This is a strictly opt-in capability that should only be used when the handling of the component module does not require a reference count increase to prevent removal during use. Note that this solution is not directly applicable to the legacy Atom/SST driver, which uses a different device hierarchy. There are however additional refcount issues which prevent the ACPI driver from being removed. This is a different issue which would need a different patch. Signed-off-by: Pierre-Louis Bossart <pierre-louis.bossart@linux.intel.com> Signed-off-by: Mark Brown <broonie@kernel.org>
2019-02-08gpiolib: acpi: Introduce ACPI_GPIO_QUIRK_ONLY_GPIOIOAndy Shevchenko
New quirk enforces search for GPIO based on its type, i.e. iterate over GpioIo resources only. Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com> Acked-by: Mika Westerberg <mika.westerberg@linux.intel.com> Acked-by: Linus Walleij <linus.walleij@linaro.org> Tested-by: Hans de Goede <hdegoede@redhat.com> Signed-off-by: Mark Brown <broonie@kernel.org>
2019-02-08ieee80211: fix for_each_element_extid()Johannes Berg
The data/datalen argument names cannot be used as those are also the struct element names, fix that. Signed-off-by: Johannes Berg <johannes.berg@intel.com>
2019-02-08dt-bindings: reset: meson: add g12a bindingsJerome Brunet
Add device tree bindings for the reset controller of g12a SoC family. Acked-by: Neil Armstrong <narmstrong@baylibre.com> Signed-off-by: Jerome Brunet <jbrunet@baylibre.com> Acked-by: Kevin Hilman <khilman@baylibre.com> Signed-off-by: Philipp Zabel <p.zabel@pengutronix.de>
2019-02-08i915/snd_hdac: I915 subcomponent for the snd_hdacDaniel Vetter
Since we need multiple components for I915 for different purposes (Audio & Mei_hdcp), we adopt the subcomponents methodology introduced by the previous patch (mentioned below). Author: Daniel Vetter <daniel.vetter@ffwll.ch> Date: Mon Jan 28 17:08:20 2019 +0530 components: multiple components for a device Reviewed-by: Takashi Iwai <tiwai@suse.de> Signed-off-by-by: Ramalingam C <ramalinagm.c@intel.com> (commit message) Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch> (code) cc: Greg Kroah-Hartman <gregkh@linuxfoundation.org> cc: Russell King <rmk+kernel@arm.linux.org.uk> cc: Rafael J. Wysocki <rafael@kernel.org> cc: Jaroslav Kysela <perex@perex.cz> cc: Takashi Iwai <tiwai@suse.com> cc: Rodrigo Vivi <rodrigo.vivi@intel.com> cc: Jani Nikula <jani.nikula@linux.intel.com> Link: https://patchwork.freedesktop.org/patch/msgid/20190207232759.14553-4-daniel.vetter@ffwll.ch
2019-02-08components: multiple components for a deviceDaniel Vetter
Component framework is extended to support multiple components for a struct device. These will be matched with different masters based on its sub component value. We are introducing this, as I915 needs two different components with different subcomponent value, which will be matched to two different component masters(Audio and HDCP) based on the subcomponent values. v2: Add documenation. v3: Rebase on top of updated documenation. v4: Review from Rafael: - Remove redundant "This" from kerneldoc (also in the previous patch) - Streamline the logic in find_component() a bit. Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch> (v1 code) Signed-off-by: Ramalingam C <ramalingam.c@intel.com> (v1 commit message) Cc: Ramalingam C <ramalingam.c@intel.com> Cc: Greg Kroah-Hartman <gregkh@linuxfoundation.org> Cc: Russell King <rmk+kernel@arm.linux.org.uk> Cc: Rafael J. Wysocki <rafael@kernel.org> Cc: Jaroslav Kysela <perex@perex.cz> Cc: Takashi Iwai <tiwai@suse.com> Cc: Rodrigo Vivi <rodrigo.vivi@intel.com> Cc: Jani Nikula <jani.nikula@linux.intel.com> Reviewed-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org> Reviewed-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com> Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch> Link: https://patchwork.freedesktop.org/patch/msgid/20190207232759.14553-2-daniel.vetter@ffwll.ch
2019-02-08component: Add documentationDaniel Vetter
While typing these I think doing an s/component_master/aggregate/ would be useful: - it's shorter :-) - I think component/aggregate is much more meaningful naming than component/puppetmaster or something like that. At least to my English ear "aggregate" emphasizes much more the "assemble a pile of things into something bigger" aspect, and there's not really much of a control hierarchy between aggregate and constituing components. But that's way more than a quick doc typing exercise ... Thanks to Ram for commenting on an initial draft of these docs. v2: Review from Rafael: - git add Documenation/driver-api/component.rst - lots of polish to the wording + spelling fixes. v3: Review from Russell: - s/framework/helper - clarify the documentation for component_match_add functions. v4: Remove a few superflous "This". Reviewed-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com> Cc: "C, Ramalingam" <ramalingam.c@intel.com> Cc: Greg Kroah-Hartman <gregkh@linuxfoundation.org> Cc: Russell King <rmk+kernel@arm.linux.org.uk> Cc: Rafael J. Wysocki <rafael@kernel.org> Cc: Jaroslav Kysela <perex@perex.cz> Cc: Takashi Iwai <tiwai@suse.com> Cc: Rodrigo Vivi <rodrigo.vivi@intel.com> Cc: Jani Nikula <jani.nikula@linux.intel.com> Reviewed-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org> Signed-off-by: Daniel Vetter <daniel.vetter@intel.com> Link: https://patchwork.freedesktop.org/patch/msgid/20190207232759.14553-1-daniel.vetter@ffwll.ch
2019-02-08ata: pata_of_platform: Allow to use 16-bit wide data transferAlexander Shiyan
In some cases, the system bus can be configured for 16-bit mode, in this case using read/write functions for 32-bit values results in two cycles of 16 bits each, which is wrong. This patch adds the devicetree flag to switch the driver to use 16-bit mode for I/O transfers. Acked-by: Bartlomiej Zolnierkiewicz <b.zolnierkie@samsung.com> Signed-off-by: Alexander Shiyan <shc_work@mail.ru> Signed-off-by: Jens Axboe <axboe@kernel.dk>
2019-02-08ALSA: pcm: Define snd_pcm_lib_preallocate_*() as returning voidTakashi Iwai
Now all callers no longer check the return value from snd_pcm_lib_preallocate_pages() and co, let's make them to return void, so that any new code won't fall into the same pitfall. Reviewed-by: Jaroslav Kysela <perex@perex.cz> Signed-off-by: Takashi Iwai <tiwai@suse.de>
2019-02-08Merge branch 'for-linus' into for-nextTakashi Iwai
Signed-off-by: Takashi Iwai <tiwai@suse.de>
2019-02-08Merge tag 'asoc-v5.1' of ↵Takashi Iwai
https://git.kernel.org/pub/scm/linux/kernel/git/broonie/sound into for-next ASoC: Updates for v5.1 Lots and lots of new drivers so far, a highlight being the MediaTek BTCVSD which is a driver for a Bluetooth radio chip - the first such driver we've had upstream. Hopefully we will soon also see a baseband with an upstream driver! - Support for only powering up channels that are actively being used. - Quite a few improvements to simplify the generic card drivers, especially the merge of the SCU cards into the main generic drivers. - Lots of fixes for probing on Intel systems, trying to rationalize things to look more standard from a framework point of view. - New drivers for Asahi Kasei Microdevices AK4497, Cirrus Logic CS4341, Google ChromeOS embedded controllers, Ingenic JZ4725B, MediaTek BTCVSD, MT8183 and MT6358, NXP MICFIL, Rockchip RK3328, Spreadtrum DMA controllers, Qualcomm WCD9335, Xilinx S/PDIF and PCM formatters.
2019-02-08cfg80211: add missing kernel-doc for multi-BSSID fieldsJohannes Berg
Add the missing kernel-doc for the new multi-BSSID fields in struct cfg80211_bss. Signed-off-by: Johannes Berg <johannes.berg@intel.com>
2019-02-08ASoC: cs35l36: Add support for Cirrus CS35L36 AmplifierJames Schulman
Add driver support for Cirrus Logic CS35L36 boosted speaker amplifier Signed-off-by: James Schulman <james.schulman@cirrus.com> Reviewed-by: Charles Keepax <ckeepax@opensource.cirrus.com> Acked-by: Brian Austin <brian.austin@cirrus.com> Signed-off-by: Mark Brown <broonie@kernel.org>
2019-02-08mac80211: indicate support for multiple BSSIDSara Sharon
Set multi-bssid support flags according to driver support. Signed-off-by: Sara Sharon <sara.sharon@intel.com> Signed-off-by: Johannes Berg <johannes.berg@intel.com>
2019-02-08mac80211: support multi-bssidSara Sharon
Add support for multi-bssid. This includes: - Parsing multi-bssid element - Overriding DTIM values - Taking into account in various places the inner BSSID instead of transmitter BSSID - Save aside some multi-bssid properties needed by drivers Signed-off-by: Sara Sharon <sara.sharon@intel.com> Signed-off-by: Johannes Berg <johannes.berg@intel.com>
2019-02-08cfg80211: save multi-bssid propertiesSara Sharon
When the new IEs are generated, the multiple BSSID elements are not saved. Save aside properties that are needed later for PS. Signed-off-by: Sara Sharon <sara.sharon@intel.com> Signed-off-by: Johannes Berg <johannes.berg@intel.com>
2019-02-08cfg80211: make BSSID generation function inlineSara Sharon
This will enable reuse by mac80211. Signed-off-by: Sara Sharon <sara.sharon@intel.com> Signed-off-by: Johannes Berg <johannes.berg@intel.com>
2019-02-08cfg80211: parse multi-bssid only if HW supports itSara Sharon
Parsing and exposing nontransmitted APs is problematic when underlying HW doesn't support it. Do it only if driver indicated support. Allow HE restriction as well, since the HE spec defined the exact manner that Multiple BSSID set should behave. APs that not support the HE spec will have less predictable Multiple BSSID set support/behavior Signed-off-by: Sara Sharon <sara.sharon@intel.com> Signed-off-by: Johannes Berg <johannes.berg@intel.com>
2019-02-08cfg80211: Move Multiple BSS info to struct cfg80211_bss to be visibleSara Sharon
Previously the transmitted BSS and the non-trasmitted BSS list were defined in struct cfg80211_internal_bss. Move them to struct cfg80211_bss since mac80211 needs this info. Signed-off-by: Sara Sharon <sara.sharon@intel.com> Signed-off-by: Johannes Berg <johannes.berg@intel.com>
2019-02-08cfg80211: add various struct element finding helpersJohannes Berg
We currently have a number of helpers to find elements that just return a u8 *, change those to return a struct element and add inlines to deal with the u8 * compatibility. Note that the match behaviour is changed to start the natch at the data, so conversion from _ie_match to _elem_match need to be done carefully. Signed-off-by: Johannes Berg <johannes.berg@intel.com>
2019-02-08cfg80211: add and use strongly typed element iteration macrosJohannes Berg
Rather than always iterating elements from frames with pure u8 pointers, add a type "struct element" that encapsulates the id/datalen/data format of them. Then, add the element iteration macros * for_each_element * for_each_element_id * for_each_element_extid which take, as their first 'argument', such a structure and iterate through a given u8 array interpreting it as elements. While at it and since we'll need it, also add * for_each_subelement * for_each_subelement_id * for_each_subelement_extid which instead of taking data/length just take an outer element and use its data/datalen. Also add for_each_element_completed() to determine if any of the loops above completed, i.e. it was able to parse all of the elements successfully and no data remained. Use for_each_element_id() in cfg80211_find_ie_match() as the first user of this. Signed-off-by: Johannes Berg <johannes.berg@intel.com>
2019-02-08pinctrl: at91: add slewrate support for SAM9X60Claudiu Beznea
Add slew rate support for SAM9X60 pin controller. Signed-off-by: Claudiu Beznea <claudiu.beznea@microchip.com> Acked-by: Ludovic Desroches <ludovic.desroches@microchip.com> Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
2019-02-08device: Fix comment for driver_data in struct deviceDavid Engraf
dev_set_drvdata/dev_get_drvdata is used to access driver_data in struct device. Signed-off-by: David Engraf <david.engraf@sysgo.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2019-02-08coresight: perf: Add "sinks" group to PMU directoryMathieu Poirier
Add a "sinks" directory entry so that users can see all the sinks available in the system in a single place. Individual sink are added as they are registered with the coresight bus. Signed-off-by: Mathieu Poirier <mathieu.poirier@linaro.org> Acked-by: Peter Zijlstra (Intel) <peterz@infradead.org> Reviewed-by: Suzuki K Poulose <suzuki.poulose@arm.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2019-02-08perf/aux: Make perf_event accessible to setup_aux()Mathieu Poirier
When pmu::setup_aux() is called the coresight PMU needs to know which sink to use for the session by looking up the information in the event's attr::config2 field. As such simply replace the cpu information by the complete perf_event structure and change all affected customers. Signed-off-by: Mathieu Poirier <mathieu.poirier@linaro.org> Reviewed-by: Suzuki K Poulose <suzuki.poulose@arm.com> Acked-by: Peter Zijlstra (Intel) <peterz@infradead.org> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2019-02-08mmc: block: handle complete_work on separate workqueueZachary Hays
The kblockd workqueue is created with the WQ_MEM_RECLAIM flag set. This generates a rescuer thread for that queue that will trigger when the CPU is under heavy load and collect the uncompleted work. In the case of mmc, this creates the possibility of a deadlock when there are multiple partitions on the device as other blk-mq work is also run on the same queue. For example: - worker 0 claims the mmc host to work on partition 1 - worker 1 attempts to claim the host for partition 2 but has to wait for worker 0 to finish - worker 0 schedules complete_work to release the host - rescuer thread is triggered after time-out and collects the dangling work - rescuer thread attempts to complete the work in order starting with claim host - the task to release host is now blocked by a task to claim it and will never be called The above results in multiple hung tasks that lead to failures to mount partitions. Handling complete_work on a separate workqueue avoids this by keeping the work completion tasks separate from the other blk-mq work. This allows the host to be released without getting blocked by other tasks attempting to claim the host. Signed-off-by: Zachary Hays <zhays@lexmark.com> Fixes: 81196976ed94 ("mmc: block: Add blk-mq support") Cc: <stable@vger.kernel.org> Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
2019-02-08usb: typec: displayport: Move the Configuration VDO helpers to the headerHeikki Krogerus
The helpers used for reading and writing the pin assignment from and to the Configuration VDO will be useful in GPU drivers, and also UCSI driver after DisplayPort alt mode support is added to it. Signed-off-by: Heikki Krogerus <heikki.krogerus@linux.intel.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2019-02-08Merge branch 'opp/power' into cpufreq/qcom-hwViresh Kumar
2019-02-07audit: hide auditsc_get_stamp and audit_serial prototypesRichard Guy Briggs
auditsc_get_stamp() and audit_serial() are internal audit functions so move their prototypes from include/linux/audit.h to kernel/audit.h so they are not visible to the rest of the kernel. Signed-off-by: Richard Guy Briggs <rgb@redhat.com> Signed-off-by: Paul Moore <paul@paul-moore.com>
generated by cgit (git 2.34.1) at 2025-09-15 11:05:17 +0000