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2019-06-27mfd: bd70528: Support ROHM bd70528 PMIC coreMatti Vaittinen1-0/+408
ROHM BD70528MWV is an ultra-low quiescent current general purpose single-chip power management IC for battery-powered portable devices. Add MFD core which enables chip access for following subdevices: - regulators/LED drivers - battery-charger - gpios - 32.768kHz clk - RTC - watchdog Signed-off-by: Matti Vaittinen <matti.vaittinen@fi.rohmeurope.com> Signed-off-by: Lee Jones <lee.jones@linaro.org>
2019-06-27mfd: regulator: clk: Split rohm-bd718x7.hMatti Vaittinen2-14/+28
Split the bd718x7.h to ROHM common and bd718x7 specific parts so that we do not need to add same things in every new ROHM PMIC header. Please note that this change requires changes also in bd718x7 sub-device drivers for regulators and clk. Signed-off-by: Matti Vaittinen <matti.vaittinen@fi.rohmeurope.com> Acked-by: Mark Brown <broonie@kernel.org> Acked-by: Stephen Boyd <sboyd@kernel.org> Signed-off-by: Lee Jones <lee.jones@linaro.org>
2019-06-26PCI: PM: Avoid skipping bus-level PM on platforms without ACPIRafael J. Wysocki1-2/+24
There are platforms that do not call pm_set_suspend_via_firmware(), so pm_suspend_via_firmware() returns 'false' on them, but the power states of PCI devices (PCIe ports in particular) are changed as a result of powering down core platform components during system-wide suspend. Thus the pm_suspend_via_firmware() checks in pci_pm_suspend_noirq() and pci_pm_resume_noirq() introduced by commit 3e26c5feed2a ("PCI: PM: Skip devices in D0 for suspend-to- idle") are not sufficient to determine that devices left in D0 during suspend will remain in D0 during resume and so the bus-level power management can be skipped for them. For this reason, introduce a new global suspend flag, PM_SUSPEND_FLAG_NO_PLATFORM, set it for suspend-to-idle only and replace the pm_suspend_via_firmware() checks mentioned above with checks against this flag. Fixes: 3e26c5feed2a ("PCI: PM: Skip devices in D0 for suspend-to-idle") Reported-by: Jon Hunter <jonathanh@nvidia.com> Tested-by: Jon Hunter <jonathanh@nvidia.com> Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com> Tested-by: Mika Westerberg <mika.westerberg@linux.intel.com> Reviewed-by: Mika Westerberg <mika.westerberg@linux.intel.com>
2019-06-26Allow 0.0.0.0/8 as a valid address rangeDave Taht1-1/+1
The longstanding prohibition against using 0.0.0.0/8 dates back to two issues with the early internet. There was an interoperability problem with BSD 4.2 in 1984, fixed in BSD 4.3 in 1986. BSD 4.2 has long since been retired. Secondly, addresses of the form 0.x.y.z were initially defined only as a source address in an ICMP datagram, indicating "node number x.y.z on this IPv4 network", by nodes that know their address on their local network, but do not yet know their network prefix, in RFC0792 (page 19). This usage of 0.x.y.z was later repealed in RFC1122 (section 3.2.2.7), because the original ICMP-based mechanism for learning the network prefix was unworkable on many networks such as Ethernet (which have longer addresses that would not fit into the 24 "node number" bits). Modern networks use reverse ARP (RFC0903) or BOOTP (RFC0951) or DHCP (RFC2131) to find their full 32-bit address and CIDR netmask (and other parameters such as default gateways). 0.x.y.z has had 16,777,215 addresses in 0.0.0.0/8 space left unused and reserved for future use, since 1989. This patch allows for these 16m new IPv4 addresses to appear within a box or on the wire. Layer 2 switches don't care. 0.0.0.0/32 is still prohibited, of course. Signed-off-by: Dave Taht <dave.taht@gmail.com> Signed-off-by: John Gilmore <gnu@toad.com> Acked-by: Toke Høiland-Jørgensen <toke@redhat.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2019-06-26keys: Network namespace domain tagDavid Howells1-0/+3
Create key domain tags for network namespaces and make it possible to automatically tag keys that are used by networked services (e.g. AF_RXRPC, AFS, DNS) with the default network namespace if not set by the caller. This allows keys with the same description but in different namespaces to coexist within a keyring. Signed-off-by: David Howells <dhowells@redhat.com> cc: netdev@vger.kernel.org cc: linux-nfs@vger.kernel.org cc: linux-cifs@vger.kernel.org cc: linux-afs@lists.infradead.org
2019-06-26keys: Garbage collect keys for which the domain has been removedDavid Howells1-0/+2
If a key operation domain (such as a network namespace) has been removed then attempt to garbage collect all the keys that use it. Signed-off-by: David Howells <dhowells@redhat.com>
2019-06-26keys: Include target namespace in match criteriaDavid Howells1-0/+10
Currently a key has a standard matching criteria of { type, description } and this is used to only allow keys with unique criteria in a keyring. This means, however, that you cannot have keys with the same type and description but a different target namespace in the same keyring. This is a potential problem for a containerised environment where, say, a container is made up of some parts of its mount space involving netfs superblocks from two different network namespaces. This is also a problem for shared system management keyrings such as the DNS records keyring or the NFS idmapper keyring that might contain keys from different network namespaces. Fix this by including a namespace component in a key's matching criteria. Keyring types are marked to indicate which, if any, namespace is relevant to keys of that type, and that namespace is set when the key is created from the current task's namespace set. The capability bit KEYCTL_CAPS1_NS_KEY_TAG is set if the kernel is employing this feature. Signed-off-by: David Howells <dhowells@redhat.com>
2019-06-26keys: Move the user and user-session keyrings to the user_namespaceDavid Howells2-16/+7
Move the user and user-session keyrings to the user_namespace struct rather than pinning them from the user_struct struct. This prevents these keyrings from propagating across user-namespaces boundaries with regard to the KEY_SPEC_* flags, thereby making them more useful in a containerised environment. The issue is that a single user_struct may be represent UIDs in several different namespaces. The way the patch does this is by attaching a 'register keyring' in each user_namespace and then sticking the user and user-session keyrings into that. It can then be searched to retrieve them. Signed-off-by: David Howells <dhowells@redhat.com> cc: Jann Horn <jannh@google.com>
2019-06-26keys: Namespace keyring namesDavid Howells2-0/+7
Keyring names are held in a single global list that any process can pick from by means of keyctl_join_session_keyring (provided the keyring grants Search permission). This isn't very container friendly, however. Make the following changes: (1) Make default session, process and thread keyring names begin with a '.' instead of '_'. (2) Keyrings whose names begin with a '.' aren't added to the list. Such keyrings are system specials. (3) Replace the global list with per-user_namespace lists. A keyring adds its name to the list for the user_namespace that it is currently in. (4) When a user_namespace is deleted, it just removes itself from the keyring name list. The global keyring_name_lock is retained for accessing the name lists. This allows (4) to work. This can be tested by: # keyctl newring foo @s 995906392 # unshare -U $ keyctl show ... 995906392 --alswrv 65534 65534 \_ keyring: foo ... $ keyctl session foo Joined session keyring: 935622349 As can be seen, a new session keyring was created. The capability bit KEYCTL_CAPS1_NS_KEYRING_NAME is set if the kernel is employing this feature. Signed-off-by: David Howells <dhowells@redhat.com> cc: Eric W. Biederman <ebiederm@xmission.com>
2019-06-26keys: Add a 'recurse' flag for keyring searchesDavid Howells1-1/+2
Add a 'recurse' flag for keyring searches so that the flag can be omitted and recursion disabled, thereby allowing just the nominated keyring to be searched and none of the children. Signed-off-by: David Howells <dhowells@redhat.com>
2019-06-26keys: Cache the hash value to avoid lots of recalculationDavid Howells1-0/+3
Cache the hash of the key's type and description in the index key so that we're not recalculating it every time we look at a key during a search. The hash function does a bunch of multiplications, so evading those is probably worthwhile - especially as this is done for every key examined during a search. This also allows the methods used by assoc_array to get chunks of index-key to be simplified. Signed-off-by: David Howells <dhowells@redhat.com>
2019-06-26keys: Simplify key description managementDavid Howells1-1/+13
Simplify key description management by cramming the word containing the length with the first few chars of the description also. This simplifies the code that generates the index-key used by assoc_array. It should speed up key searching a bit too. Signed-off-by: David Howells <dhowells@redhat.com>
2019-06-26keys: Kill off request_key_async{,_with_auxdata}David Howells1-11/+0
Kill off request_key_async{,_with_auxdata}() as they're not currently used. Signed-off-by: David Howells <dhowells@redhat.com>
2019-06-26net/mlx5e: Specifying known origin of packets matching the flowJianbo Liu1-0/+1
In vport metadata matching, source port number is replaced by metadata. While FW has no idea about what it is in the metadata, a syndrome will happen. Specify a known origin to avoid the syndrome. However, there is no functional change because ANY_VPORT (0) is filled in flow_source, the same default value as before, as a pre-step towards metadata matching for fast path. There are two other values can be filled in flow_source. When setting 0x1, packet matching this rule is from uplink, while 0x2 is for packet from other local vports. Signed-off-by: Jianbo Liu <jianbol@mellanox.com> Reviewed-by: Mark Bloch <markb@mellanox.com> Signed-off-by: Saeed Mahameed <saeedm@mellanox.com>
2019-06-26net/mlx5: E-Switch, Tag packet with vport number in VF vports and uplink ingress ACLsJianbo Liu1-0/+17
When a dual-port VHCA sends a RoCE packet on its non-native port, and the packet arrives to its affiliated vport FDB, a mismatch might occur on the rules that match the packet source vport as it is not represented by single VHCA only in this case. So we change to match on metadata instead of source vport. To do that, a rule is created in all vports and uplink ingress ACLs, to save the source vport number and vhca id in the packet's metadata in order to match on it later. The metadata register used is the first of the 32-bit type C registers. It can be used for matching and header modify operations. The higher 16 bits of this register are for vhca id, and the lower 16 ones is for vport number. This change is not for dual-port RoCE only. If HW and FW allow, the vport metadata matching is enabled by default. Signed-off-by: Jianbo Liu <jianbol@mellanox.com> Reviewed-by: Eli Britstein <elibr@mellanox.com> Reviewed-by: Roi Dayan <roid@mellanox.com> Reviewed-by: Mark Bloch <markb@mellanox.com> Signed-off-by: Saeed Mahameed <saeedm@mellanox.com>
2019-06-26net/mlx5: Add flow context for flow tagJianbo Liu1-4/+11
Refactor the flow data structures, add new flow_context and move flow_tag into it, as flow_tag doesn't belong to the rule action. Signed-off-by: Jianbo Liu <jianbol@mellanox.com> Reviewed-by: Mark Bloch <markb@mellanox.com> Signed-off-by: Saeed Mahameed <saeedm@mellanox.com>
2019-06-26net/mlx5: Introduce vport metadata matching bits and enum constantsJianbo Liu1-7/+49
When a dual-port VHCA sends a RoCE packet on its non-native port, and the packet arrives to its affiliated vport FDB, a mismatch might occur on the rules that match the packet source vport. So we replace the match on source port with the match on metadata that was configured in ingress ACL, and that metadata will be passed further also to the NIC RX table of the eswitch manager. Introduce vport metadata matching bits and enum constants as a pre-step towards metadata matching. o metadata type C registers in the misc parameters 2 fields. o esw_uplink_ingress_acl bit in esw cap. If it set, the device supports ingress ACL for the uplink vport. o fdb_to_vport_reg_* bits in flow table cap and esw vport context, to support propagating the metadata to the nic rx through the loopback path. o flow_source in flow context, to indicate the known origin of packets. o enum constants, to support the above bits. Signed-off-by: Jianbo Liu <jianbol@mellanox.com> Reviewed-by: Eli Britstein <elibr@mellanox.com> Reviewed-by: Roi Dayan <roid@mellanox.com> Reviewed-by: Mark Bloch <markb@mellanox.com> Signed-off-by: Saeed Mahameed <saeedm@mellanox.com>
2019-06-26i40e: fix 'Unknown bps' in dmesg for 2.5Gb/5Gb speedsAleksandr Loktionov1-0/+4
This patch fixes 'NIC Link is Up, Unknown bps' message in dmesg for 2.5Gb/5Gb speeds. This problem is fixed by adding constants for VIRTCHNL_LINK_SPEED_2_5GB and VIRTCHNL_LINK_SPEED_5GB cases in the i40e_virtchnl_link_speed() function. Signed-off-by: Aleksandr Loktionov <aleksandr.loktionov@intel.com> Tested-by: Andrew Bowers <andrewx.bowers@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
2019-06-26i2c: add newly exported functions to the header, tooWolfram Sang1-0/+6
Nobody (including me) noticed that these functions were exported but not added to the header :/ Fixes: 7159dbdae3c5 ("i2c: core: improve return value handling of i2c_new_device and i2c_new_dummy") Signed-off-by: Wolfram Sang <wsa+renesas@sang-engineering.com> Reviewed-by: Bartosz Golaszewski <bgolaszewski@baylibre.com> Reviewed-by: Kieran Bingham <kieran.bingham+renesas@ideasonboard.com> Signed-off-by: Wolfram Sang <wsa@the-dreams.de>
2019-06-26HID: intel-ish-hid: fix wrong driver_data usageHyungwoo Yang1-0/+1
Currently, in suspend() and resume(), ishtp client drivers are using driver_data to get "struct ishtp_cl_device" object which is set by bus driver. It's wrong since the driver_data should not be owned bus. driver_data should be owned by the corresponding ishtp client driver. Due to this, some ishtp client driver like cros_ec_ishtp which uses its driver_data to transfer its data to its child doesn't work correctly. So this patch removes setting driver_data in bus drier and instead of using driver_data to get "struct ishtp_cl_device", since "struct device" is embedded in "struct ishtp_cl_device", we introduce a helper function that returns "struct ishtp_cl_device" from "struct device". Signed-off-by: Hyungwoo Yang <hyungwoo.yang@intel.com> Acked-by: Srinivas Pandruvada <srinivas.pandruvada@linux.intel.com> Signed-off-by: Jiri Kosina <jkosina@suse.cz>
2019-06-26Merge tag 'v5.2-rc6' into asoc-5.3Mark Brown883-6225/+1143
Linux 5.2-rc6
2019-06-26pwm: Add support referencing PWMs from ACPINikolaus Voss1-0/+10
In analogy to referencing a GPIO using the "gpios" property from ACPI, support referencing a PWM using the "pwms" property. ACPI entries must look like Package () {"pwms", Package () { <PWM device reference>, <PWM index>, <PWM period> [, <PWM flags>]}} In contrast to the DT implementation, only _one_ PWM entry in the "pwms" property is supported. As a consequence "pwm-names"-property and con_id lookup aren't supported. Support for ACPI is added via the firmware-node framework which is an abstraction layer on top of ACPI/DT. To keep this patch clean, DT and ACPI paths are kept separate. The firmware-node framework could be used to unify both paths in a future patch. To support leds-pwm driver, an additional method devm_fwnode_pwm_get() which supports both ACPI and DT configuration is exported. Signed-off-by: Nikolaus Voss <nikolaus.voss@loewensteinmedical.de> [thierry.reding@gmail.com: fix build failures for !ACPI] Signed-off-by: Thierry Reding <thierry.reding@gmail.com>
2019-06-26cpufreq: Move the IS_ENABLED(CPU_THERMAL) macro into a stubDaniel Lezcano1-0/+6
cpufreq_online() and cpufreq_offline() [un]register the driver as a cooling device. This is done if the driver is flagged as a cooling device in addition with an IS_ENABLED() check to compile out the branching code. Group this test in a stub function added in the cpufreq header instead of having the IS_ENABLED() in the code. Suggested-by: Rafael J. Wysocki <rafael@kernel.org> Signed-off-by: Daniel Lezcano <daniel.lezcano@linaro.org> Acked-by: Viresh Kumar <viresh.kumar@linaro.org> Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
2019-06-26Merge branch 'opp/linux-next' of git://git.kernel.org/pub/scm/linux/kernel/git/vireshk/pmRafael J. Wysocki1-4/+4
Pull operating performance points (OPP) framework changes for v5.3 from Viresh Kumar: "This pull request contains: - OPP core changes to support a wider range of devices, like IO devices (Rajendra Nayak and Stehpen Boyd). - Fixes around genpd_virt_devs (Viresh Kumar). - Fix for platform with set_opp() callback (Dmitry Osipenko)." * 'opp/linux-next' of git://git.kernel.org/pub/scm/linux/kernel/git/vireshk/pm: opp: Don't use IS_ERR on invalid supplies opp: Make dev_pm_opp_set_rate() handle freq = 0 to drop performance votes opp: Don't overwrite rounded clk rate opp: Allocate genpd_virt_devs from dev_pm_opp_attach_genpd() opp: Attach genpds to devices from within OPP core
2019-06-26usb: renesas_usbhs: Add has_new_pipe_configs flagYoshihiro Shimoda1-0/+1
In the future, each struct renesas_usbhs_driver_param is stored on the each platform related source code (e.g. rcar3.c). So, to simplify the source code, this patch adds a new flag has_new_pipe_configs. Signed-off-by: Yoshihiro Shimoda <yoshihiro.shimoda.uh@renesas.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2019-06-26usb: renesas_usbhs: Remove type member from renesas_usbhs_driver_paramYoshihiro Shimoda1-7/+0
Now no one uses the type member so that this patch removes it. Signed-off-by: Yoshihiro Shimoda <yoshihiro.shimoda.uh@renesas.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2019-06-26usb: renesas_usbhs: Use a specific flag instead of type for multi_clksYoshihiro Shimoda1-0/+1
To remove the type of renesas_usbhs_driver_param in the future, this patch uses a specific flag "multi_clks". Signed-off-by: Yoshihiro Shimoda <yoshihiro.shimoda.uh@renesas.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2019-06-26usb: renesas_usbhs: remove notify_hotplug callbackYoshihiro Shimoda1-25/+1
The notify_hotplug callback was supported in v3.10, but the last user (armadillo800eva) was removed by the commit 1fa59bda21c7 ("ARM: shmobile: Remove legacy board code for Armadillo-800 EVA"). So, this patch removes it. Signed-off-by: Yoshihiro Shimoda <yoshihiro.shimoda.uh@renesas.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2019-06-25clk: Add devm_clk_bulk_get_optional() functionSylwester Nawrocki1-0/+28
Add managed version of the clk_bulk_get_optional() helper function. Signed-off-by: Sylwester Nawrocki <s.nawrocki@samsung.com> [sboyd@kernel.org: Mark __devm_clk_bulk_get() static] Signed-off-by: Stephen Boyd <sboyd@kernel.org>
2019-06-25clk: Add clk_bulk_get_optional() functionSylwester Nawrocki1-0/+19
clk_bulk_get_optional() allows to get a group of clocks where one or more is optional. For a not available clock, e.g. not specifed in the clock consumer node in DT, its respective struct clk pointer will be NULL. This allows for operating on a group of returned clocks (struct clk_bulk_data array) with existing clk_bulk* APIs. Signed-off-by: Sylwester Nawrocki <s.nawrocki@samsung.com> Signed-off-by: Stephen Boyd <sboyd@kernel.org>
2019-06-25linux/dim: Add completions count to dim_sampleYamin Friedman1-3/+25
Added a measurement of completions per/msec to allow for completion based dim algorithms. In order to use dynamic interrupt moderation with RDMA we need to have a different measurment than packets per second. This change is meant to prepare for adding a new DIM method. All drivers that use net_dim and thus do not need a completion count will have the completions set to 0. Signed-off-by: Yamin Friedman <yaminf@mellanox.com> Reviewed-by: Max Gurtovoy <maxg@mellanox.com> Signed-off-by: Saeed Mahameed <saeedm@mellanox.com>
2019-06-25linux/dim: Move implementation to .c filesTal Gilboa2-335/+253
Moved all logic from dim.h and net_dim.h to dim.c and net_dim.c. This is both more structurally appealing and would allow to only expose externally used functions. Signed-off-by: Tal Gilboa <talgi@mellanox.com> Signed-off-by: Saeed Mahameed <saeedm@mellanox.com>
2019-06-25linux/dim: Rename externally used net_dim membersTal Gilboa2-26/+25
Removed 'net' prefix from functions and structs used by external drivers. Signed-off-by: Tal Gilboa <talgi@mellanox.com> Signed-off-by: Saeed Mahameed <saeedm@mellanox.com>
2019-06-25linux/dim: Rename net_dim_sample() to net_dim_update_sample()Tal Gilboa2-3/+4
In order to avoid confusion between the function and the similarly named struct. In preparation for removing the 'net' prefix from dim members. Signed-off-by: Tal Gilboa <talgi@mellanox.com> Signed-off-by: Saeed Mahameed <saeedm@mellanox.com>
2019-06-25linux/dim: Rename externally exposed macrosTal Gilboa2-15/+15
Renamed macros in use by external drivers. Signed-off-by: Tal Gilboa <talgi@mellanox.com> Signed-off-by: Saeed Mahameed <saeedm@mellanox.com>
2019-06-25linux/dim: Remove "net" prefix from internal DIM membersTal Gilboa2-87/+86
Only renaming functions and structs which aren't used by an external code. Signed-off-by: Tal Gilboa <talgi@mellanox.com> Signed-off-by: Saeed Mahameed <saeedm@mellanox.com>
2019-06-25linux/dim: Move logic to dim.hTal Gilboa2-146/+155
In preparation for supporting more implementations of the DIM algorithm, I'm moving what would become common logic to a common library. Downstream DIM implementations will use the common lib for their implementation. Signed-off-by: Tal Gilboa <talgi@mellanox.com> Signed-off-by: Saeed Mahameed <saeedm@mellanox.com>
2019-06-25clocksource/drivers/exynos_mct: Increase priority over ARM arch timerMarek Szyprowski1-1/+1
Exynos SoCs based on CA7/CA15 have 2 timer interfaces: custom Exynos MCT (Multi Core Timer) and standard ARM Architected Timers. There are use cases, where both timer interfaces are used simultanously. One of such examples is using Exynos MCT for the main system timer and ARM Architected Timers for the KVM and virtualized guests (KVM requires arch timers). Exynos Multi-Core Timer driver (exynos_mct) must be however started before ARM Architected Timers (arch_timer), because they both share some common hardware blocks (global system counter) and turning on MCT is needed to get ARM Architected Timer working properly. To ensure selecting Exynos MCT as the main system timer, increase MCT timer rating. To ensure proper starting order of both timers during suspend/resume cycle, increase MCT hotplug priority over ARM Archictected Timers. Signed-off-by: Marek Szyprowski <m.szyprowski@samsung.com> Reviewed-by: Krzysztof Kozlowski <krzk@kernel.org> Reviewed-by: Chanwoo Choi <cw00.choi@samsung.com> Signed-off-by: Daniel Lezcano <daniel.lezcano@linaro.org>
2019-06-25pwm: Add consumer device linkFabrice Gasnier1-2/+4
Add a device link between the PWM consumer and the PWM provider. This enforces the PWM user to get suspended before the PWM provider. It allows proper synchronization of suspend/resume sequences: the PWM user is responsible for properly stopping PWM, before the provider gets suspended: see [1]. Add the device link in: - of_pwm_get() - pwm_get() - devm_*pwm_get() variants as it requires a reference to the device for the PWM consumer. [1] https://lkml.org/lkml/2019/2/5/770 Suggested-by: Thierry Reding <thierry.reding@gmail.com> Acked-by: Uwe Kleine-König <u.kleine-koenig@pengutronix.de> Signed-off-by: Fabrice Gasnier <fabrice.gasnier@st.com> Signed-off-by: Thierry Reding <thierry.reding@gmail.com>
2019-06-25dma-direct: handle DMA_ATTR_NO_KERNEL_MAPPING in common codeChristoph Hellwig1-0/+2
DMA_ATTR_NO_KERNEL_MAPPING is generally implemented by allocating normal cacheable pages or CMA memory, and then returning the page pointer as the opaque handle. Lift that code from the xtensa and generic dma remapping implementations into the generic dma-direct code so that we don't even call arch_dma_alloc for these allocations. Signed-off-by: Christoph Hellwig <hch@lst.de>
2019-06-25iommu/io-pgtable: Replace IO_PGTABLE_QUIRK_NO_DMA with specific flagWill Deacon1-7/+4
IO_PGTABLE_QUIRK_NO_DMA is a bit of a misnomer, since it's really just an indication of whether or not the page-table walker for the IOMMU is coherent with the CPU caches. Since cache coherency is more than just a quirk, replace the flag with its own field in the io_pgtable_cfg structure. Cc: Bjorn Andersson <bjorn.andersson@linaro.org> Signed-off-by: Will Deacon <will@kernel.org>
2019-06-25regulator: core: Expose some of core functions needed by couplersDmitry Osipenko1-0/+35
Expose some of internal functions that are required for implementation of customized regulator couplers. Signed-off-by: Dmitry Osipenko <digetx@gmail.com> Signed-off-by: Mark Brown <broonie@kernel.org>
2019-06-25regulator: core: Introduce API for regulators coupling customizationDmitry Osipenko3-4/+66
Right now regulator core supports only one type of regulators coupling, the "voltage max-spread" which keeps voltages of coupled regulators in a given range from each other. A more sophisticated coupling may be required in practice, one example is the NVIDIA Tegra SoCs which besides the max-spreading have other restrictions that must be adhered. Introduce API that allow platforms to provide their own customized coupling algorithms. Signed-off-by: Dmitry Osipenko <digetx@gmail.com> Signed-off-by: Mark Brown <broonie@kernel.org>
2019-06-25pinctrl: remove unneeded #ifdef around declarationsMasahiro Yamada4-26/+6
What is the point in surrounding the whole of declarations with ifdef like this? #ifdef CONFIG_FOO int foo(void); #endif If CONFIG_FOO is not defined, all callers of foo() will fail with implicit declaration errors since the top Makefile adds -Werror-implicit-function-declaration to KBUILD_CFLAGS. This breaks the build earlier when you are doing something wrong. That's it. Anyway, it will fail to link since the definition of foo() is not compiled. In summary, these ifdef are unneeded. Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com> Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
2019-06-25timekeeping: Boot should be boottime for coarse ns accessorJason A. Donenfeld1-1/+1
Somewhere in all the patchsets before, this cleanup got lost. Signed-off-by: Jason A. Donenfeld <Jason@zx2c4.com> Signed-off-by: Thomas Gleixner <tglx@linutronix.de> Cc: Arnd Bergmann <arnd@arndb.de> Link: https://lkml.kernel.org/r/20190624091539.13512-1-Jason@zx2c4.com
2019-06-25dma-mapping: add a dma_alloc_need_uncached helperChristoph Hellwig1-0/+14
Check if we need to allocate uncached memory for a device given the allocation flags. Switch over the uncached segment check to this helper to deal with architectures that do not support the dma_cache_sync operation and thus should not returned cacheable memory for DMA_ATTR_NON_CONSISTENT allocations. Signed-off-by: Christoph Hellwig <hch@lst.de>
2019-06-25Merge tag 'drm/tegra/for-5.3-rc1' of git://anongit.freedesktop.org/tegra/linux into drm-nextDave Airlie1-0/+2
drm/tegra: Changes for v5.3-rc1 This contains a couple of small improvements and cleanups for the Tegra DRM driver. Signed-off-by: Dave Airlie <airlied@redhat.com> From: Thierry Reding <thierry.reding@gmail.com> Link: https://patchwork.freedesktop.org/patch/msgid/20190621150753.19550-1-thierry.reding@gmail.com
2019-06-24net/mlx5: Convert mkey_table to XArrayMatthew Wilcox2-16/+2
The lock protecting the data structure does not need to be an rwlock. The only read access to the lock is in an error path, and if that's limiting your scalability, you have bigger performance problems. Eliminate mlx5_mkey_table in favour of using the xarray directly. reg_mr_callback must use GFP_ATOMIC for allocating XArray nodes as it may be called in interrupt context. This also fixes a minor bug where SRCU locking was being used on the radix tree read side, when RCU was needed too. Signed-off-by: Matthew Wilcox <willy@infradead.org> Signed-off-by: Jason Gunthorpe <jgg@mellanox.com> Signed-off-by: Saeed Mahameed <saeedm@mellanox.com>
2019-06-25Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-nextPablo Neira Ayuso778-4984/+1130
Resolve conflict between d2912cb15bdd ("treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 500") removing the GPL disclaimer and fe03d4745675 ("Update my email address") which updates Jozsef Kadlecsik's email. Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
2019-06-24tpm: Don't duplicate events from the final event log in the TCG2 logMatthew Garrett1-0/+1
After the first call to GetEventLog() on UEFI systems using the TCG2 crypto agile log format, any further log events (other than those triggered by ExitBootServices()) will be logged in both the main log and also in the Final Events Log. While the kernel only calls GetEventLog() immediately before ExitBootServices(), we can't control whether earlier parts of the boot process have done so. This will result in log entries that exist in both logs, and so the current approach of simply appending the Final Event Log to the main log will result in events being duplicated. We can avoid this problem by looking at the size of the Final Event Log just before we call ExitBootServices() and exporting this to the main kernel. The kernel can then skip over all events that occured before ExitBootServices() and only append events that were not also logged to the main log. Signed-off-by: Matthew Garrett <mjg59@google.com> Reported-by: Joe Richey <joerichey@google.com> Suggested-by: Joe Richey <joerichey@google.com> Acked-by: Ard Biesheuvel <ard.biesheuvel@linaro.org> Reviewed-by: Jarkko Sakkinen <jarkko.sakkinen@linux.intel.com> Tested-by: Jarkko Sakkinen <jarkko.sakkinen@linux.intel.com> Signed-off-by: Jarkko Sakkinen <jarkko.sakkinen@linux.intel.com>