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2017-12-02net: dsa: add switch vlan bitmap functionsVivien Didelot
This patch brings no functional changes. It moves out the VLAN code iterating on a list of VLAN members into new dsa_switch_vlan_{prepare,add}_bitmap() functions. This gives us a better isolation of the two switchdev phases. Signed-off-by: Vivien Didelot <vivien.didelot@savoirfairelinux.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2017-12-02net: dsa: remove trans argument from mdb opsVivien Didelot
The DSA switch MDB ops pass the switchdev_trans structure down to the drivers, but no one is using them and they aren't supposed to anyway. Remove the trans argument from MDB prepare and add operations. Signed-off-by: Vivien Didelot <vivien.didelot@savoirfairelinux.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2017-12-02net: dsa: remove trans argument from vlan opsVivien Didelot
The DSA switch VLAN ops pass the switchdev_trans structure down to the drivers, but no one is using them and they aren't supposed to anyway. Remove the trans argument from VLAN prepare and add operations. At the same time, fix the following checkpatch warning: WARNING: line over 80 characters #74: FILE: drivers/net/dsa/dsa_loop.c:177: + const struct switchdev_obj_port_vlan *vlan) Signed-off-by: Vivien Didelot <vivien.didelot@savoirfairelinux.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2017-12-02openvswitch: do not propagate headroom updates to internal portPaolo Abeni
After commit 3a927bc7cf9d ("ovs: propagate per dp max headroom to all vports") the need_headroom for the internal vport is updated accordingly to the max needed headroom in its datapath. That avoids the pskb_expand_head() costs when sending/forwarding packets towards tunnel devices, at least for some scenarios. We still require such copy when using the ovs-preferred configuration for vxlan tunnels: br_int / \ tap vxlan (remote_ip:X) br_phy \ NIC where the route towards the IP 'X' is via 'br_phy'. When forwarding traffic from the tap towards the vxlan device, we will call pskb_expand_head() in vxlan_build_skb() because br-phy->needed_headroom is equal to tun->needed_headroom. With this change we avoid updating the internal vport needed_headroom, so that in the above scenario no head copy is needed, giving 5% performance improvement in UDP throughput test. As a trade-off, packets sent from the internal port towards a tunnel device will now experience the head copy overhead. The rationale is that the latter use-case is less relevant performance-wise. Signed-off-by: Paolo Abeni <pabeni@redhat.com> Acked-by: Pravin B Shelar <pshelar@ovn.org> Signed-off-by: David S. Miller <davem@davemloft.net>
2017-12-03Merge branch 'bpf-xdp-stack-uninit-and-offload-tests'Daniel Borkmann
Jakub Kicinski says: ==================== The purpose of this series is to add a software model of BPF offloads to make it easier for everyone to test them and make some of the more arcane rules and assumptions more clear. The series starts with 3 patches aiming to make XDP handling in the drivers less error prone. Currently driver authors have to remember to free XDP programs if XDP is active during unregister. With this series the core will disable XDP on its own. It will take place after close, drivers are not expected to perform reconfiguration when disabling XDP on a downed device. Next two patches add the software netdev driver, followed by a python test which exercises all the corner cases which came to my mind. Test needs to be run as root. It will print basic information to stdout, but can also create a more detailed log of all commands when --log option is passed. Log is in Emacs Org-mode format. ./tools/testing/selftests/bpf/test_offload.py --log /tmp/log Last two patches replace the SR-IOV API implementation of dummy. v3: - move the freeing of vfs to release (Phil). v2: - free device from the release function; - use bus-based name generatin instead of netdev name. v1: - replace the SR-IOV API implementation of dummy; - make the dev_xdp_uninstall() also handle the XDP generic (Daniel). ==================== Signed-off-by: Daniel Borkmann <daniel@iogearbox.net>
2017-12-03net: dummy: remove fake SR-IOV functionalityJakub Kicinski
netdevsim driver seems like a better place for fake SR-IOV functionality. Remove the code previously added to dummy. Signed-off-by: Jakub Kicinski <jakub.kicinski@netronome.com> Reviewed-by: Quentin Monnet <quentin.monnet@netronome.com> Acked-by: Phil Sutter <phil@nwl.cc> Signed-off-by: Daniel Borkmann <daniel@iogearbox.net>
2017-12-03netdevsim: add SR-IOV functionalityJakub Kicinski
dummy driver was extended with VF-related netdev APIs for testing SR-IOV-related software. netdevsim did not exist back then. Implement SR-IOV functionality in netdevsim. Notable difference is that since netdevsim has no module parameters, we will actually create a device with sriov_numvfs attribute for each netdev. The zero MAC address is accepted as some HW use it to mean any address is allowed. Link state is also now validated. Signed-off-by: Jakub Kicinski <jakub.kicinski@netronome.com> Reviewed-by: Quentin Monnet <quentin.monnet@netronome.com> Signed-off-by: Daniel Borkmann <daniel@iogearbox.net>
2017-12-03selftests/bpf: add offload test based on netdevsimJakub Kicinski
Add a test of BPF offload control path interfaces based on just-added netdevsim driver. Perform various checks of both the stack and the expected driver behaviour. Signed-off-by: Jakub Kicinski <jakub.kicinski@netronome.com> Reviewed-by: Simon Horman <simon.horman@netronome.com> Reviewed-by: Quentin Monnet <quentin.monnet@netronome.com> Signed-off-by: Daniel Borkmann <daniel@iogearbox.net>
2017-12-03netdevsim: add bpf offload supportJakub Kicinski
Add support for loading programs for netdevsim devices and expose the related information via DebugFS. Both offload of XDP and cls_bpf programs is supported. Signed-off-by: Jakub Kicinski <jakub.kicinski@netronome.com> Reviewed-by: Simon Horman <simon.horman@netronome.com> Reviewed-by: Quentin Monnet <quentin.monnet@netronome.com> Signed-off-by: Daniel Borkmann <daniel@iogearbox.net>
2017-12-03netdevsim: add software driver for testing offloadsJakub Kicinski
To be able to run selftests without any hardware required we need a software model. The model can also serve as an example implementation for those implementing actual HW offloads. The dummy driver have previously been extended to test SR-IOV, but the general consensus seems to be against adding further features to it. Add a new driver for purposes of software modelling only. eBPF and SR-IOV will be added here shortly, others are invited to further extend the driver with their offload models. Signed-off-by: Jakub Kicinski <jakub.kicinski@netronome.com> Reviewed-by: Simon Horman <simon.horman@netronome.com> Reviewed-by: Quentin Monnet <quentin.monnet@netronome.com> Signed-off-by: Daniel Borkmann <daniel@iogearbox.net>
2017-12-03net: xdp: make the stack take care of the tear downJakub Kicinski
Since day one of XDP drivers had to remember to free the program on the remove path. This leads to code duplication and is error prone. Make the stack query the installed programs on unregister and if something is installed, remove the program. Freeing of program attached to XDP generic is moved from free_netdev() as well. Because the remove will now be called before notifiers are invoked, BPF offload state of the program will not get destroyed before uninstall. Signed-off-by: Jakub Kicinski <jakub.kicinski@netronome.com> Reviewed-by: Simon Horman <simon.horman@netronome.com> Reviewed-by: Quentin Monnet <quentin.monnet@netronome.com> Signed-off-by: Daniel Borkmann <daniel@iogearbox.net>
2017-12-03net: xdp: report flags program was installed with on queryJakub Kicinski
Some drivers enforce that flags on program replacement and removal must match the flags passed on install. This leaves the possibility open to enable simultaneous loading of XDP programs both to HW and DRV. Allow such drivers to report the flags back to the stack. Signed-off-by: Jakub Kicinski <jakub.kicinski@netronome.com> Reviewed-by: Simon Horman <simon.horman@netronome.com> Reviewed-by: Quentin Monnet <quentin.monnet@netronome.com> Signed-off-by: Daniel Borkmann <daniel@iogearbox.net>
2017-12-03net: xdp: avoid output parameters when querying XDP progJakub Kicinski
The output parameters will get unwieldy if we want to add more information about the program. Simply pass the entire struct netdev_bpf in. Signed-off-by: Jakub Kicinski <jakub.kicinski@netronome.com> Reviewed-by: Simon Horman <simon.horman@netronome.com> Reviewed-by: Quentin Monnet <quentin.monnet@netronome.com> Signed-off-by: Daniel Borkmann <daniel@iogearbox.net>
2017-12-02gpio: pca953x: fix vendor prefix for PCA9654Sergei Shtylyov
Despite commit 55020c8056a8 ("of: Add vendor prefix for ON Semiconductor Corp.") was made long ago, the latter commit 9f49f6dd0473 ("gpio: pca953x: add onsemi,pca9654 id") made use of another, undocumented vendor prefix. Since such prefix doesn't seem to be used in any device trees, I think we can just fix the "compatible" string in the driver and the bindings and be done with that... Fixes: 9f49f6dd0473 ("gpio: pca953x: add onsemi,pca9654 id") Signed-off-by: Sergei Shtylyov <sergei.shtylyov@cogentembedded.com> Acked-by: Rob Herring <robh@kernel.org> Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
2017-12-02scsi: documentation: Fix case of 'scsi_device' struct mention(s)John Pittman
In scsi_mid_low_api.txt a the scsi_device structure is mentioned several times, but the leading 's' is uppercase (Scsi_device) and should be lowercase (scsi_device). Fixed by this commit. Signed-off-by: John Pittman <jpittman@redhat.com> Signed-off-by: Jonathan Corbet <corbet@lwn.net>
2017-12-02genericirq.rst: Remove :c:func:`...` in code blocksJonathan Neuschäfer
In code blocks, :c:func:`...` annotations don't result in cross-references. Instead, they are rendered verbatim. Remove these broken annotations, and mark function calls with parentheses() again. Fixes: 76d40fae1351 ("genericirq.rst: add cross-reference links and use monospaced fonts") Signed-off-by: Jonathan Neuschäfer <j.neuschaefer@gmx.net> Signed-off-by: Jonathan Corbet <corbet@lwn.net>
2017-12-02dmaengine: doc : Fix warning "Title underline too short" while make xmldocsMasanari Iida
This patch fix following warning during 'make xmldocs' Documentation/driver-api/dmaengine/client.rst:188: WARNING: Title underline too short. Further APIs: ------------ Signed-off-by: Masanari Iida <standby24x7@gmail.com> Signed-off-by: Jonathan Corbet <corbet@lwn.net>
2017-12-02scripts/kernel-doc: Don't fail with status != 0 if error encountered with -noneWill Deacon
My bisect scripts starting running into build failures when trying to compile 4.15-rc1 with the builds failing with things like: drivers/net/wireless/broadcom/brcm80211/brcmfmac/sdio.c:2078: error: Cannot parse struct or union! The line in question is actually just a #define, but after some digging it turns out that my scripts pass W=1 and since commit 3a025e1d1c2ea ("Add optional check for bad kernel-doc comments") that results in kernel-doc running on each source file. The file in question has a badly formatted comment immediately before the #define: /** * struct brcmf_skbuff_cb reserves first two bytes in sk_buff::cb for * bus layer usage. */ which causes the regex in dump_struct to fail (lack of braces following struct declaration) and kernel-doc returns 1, which causes the build to fail. Fix the issue by always returning 0 from kernel-doc when invoked with -none. It successfully generates no documentation, and prints out any issues. Cc: Matthew Wilcox <mawilcox@microsoft.com> Cc: Jonathan Corbet <corbet@lwn.net> Signed-off-by: Will Deacon <will.deacon@arm.com> Signed-off-by: Jonathan Corbet <corbet@lwn.net>
2017-12-02brcmfmac: change driver unbind order of the sdio function devicesArend Van Spriel
In the function brcmf_sdio_firmware_callback() the driver is unbound from the sdio function devices in the error path. However, the order in which it is done resulted in a use-after-free issue (see brcmf_ops_sdio_remove() in bcmsdh.c). Hence change the order and first unbind sdio function #2 device and then unbind sdio function #1 device. Cc: stable@vger.kernel.org # v4.12.x Fixes: 7a51461fc2da ("brcmfmac: unbind all devices upon failure in firmware callback") Reported-by: Stefan Wahren <stefan.wahren@i2se.com> Reviewed-by: Hante Meuleman <hante.meuleman@broadcom.com> Reviewed-by: Pieter-Paul Giesberts <pieter-paul.giesberts@broadcom.com> Reviewed-by: Franky Lin <franky.lin@broadcom.com> Signed-off-by: Arend van Spriel <arend.vanspriel@broadcom.com> Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
2017-12-02Merge tag 'iwlwifi-for-kalle-2017-11-28' of ↵Kalle Valo
git://git.kernel.org/pub/scm/linux/kernel/git/iwlwifi/iwlwifi-fixes Second batch of fixes intended for 4.15. * One fix in rate-scaling; * One fix for the TX queue hang detection for AP/GO modes; * Fix the TX queue hang timeout used in monitor interfaces; * Fix packet injection; * Remove a wrong error message when dumping PCI registers; * Fix race condition with RF-kill;
2017-12-02iio: stm32: fix adc/trigger link errorArnd Bergmann
The ADC driver can trigger on either the timer or the lptim trigger, but it only uses a Kconfig 'select' statement to ensure that the first of the two is present. When the lptim trigger is enabled as a loadable module, and the adc driver is built-in, we now get a link error: drivers/iio/adc/stm32-adc.o: In function `stm32_adc_get_trig_extsel': stm32-adc.c:(.text+0x4e0): undefined reference to `is_stm32_lptim_trigger' We could use a second 'select' statement and always have both trigger drivers enabled when the adc driver is, but it seems that the lptimer trigger was intentionally left optional, so it seems better to keep it that way. This adds a hack to use 'IS_REACHABLE()' rather than 'IS_ENABLED()', which avoids the link error, but instead leads to the lptimer trigger not being used in the broken configuration. I've added a runtime warning for this case to help users figure out what they did wrong if this should ever be done by accident. Fixes: f0b638a7f6db ("iio: adc: stm32: add support for lptimer triggers") Signed-off-by: Arnd Bergmann <arnd@arndb.de> Cc: <Stable@vger.kernel.org> Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
2017-12-02iio: health: max30102: Temperature should be in milli CelsiusPeter Meerwald-Stadler
As per ABI temperature should be in milli Celsius after scaling, not Celsius Note on stable cc. This driver is breaking the standard IIO ABI. (JC) Signed-off-by: Peter Meerwald-Stadler <pmeerw@pmeerw.net> Acked-by: Matt Ranostay <matt.ranostay@konsulko.com> Cc: <Stable@vger.kernel.org> Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
2017-12-02iio: fix kernel-doc build errorsRandy Dunlap
Fix build errors in kernel-doc notation. Symbols that end in '_' have a special meaning, but adding a '*' makes them OK. ../drivers/iio/industrialio-core.c:635: ERROR: Unknown target name: "iio_val". ../drivers/iio/industrialio-core.c:642: ERROR: Unknown target name: "iio_val". Signed-off-by: Randy Dunlap <rdunlap@infradead.org> Cc: <Stable@vger.kernel.org> Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
2017-12-02iio: adc: meson-saradc: Meson8 and Meson8b do not have REG11 and REG13Martin Blumenstingl
The Meson GXBB and newer SoCs have a few more registers than the older Meson8 and Meson8b SoCs. Use a separate regmap config to limit the older SoCs to the DELTA_10 register. Fixes: 6c76ed31cd05 ("iio: adc: meson-saradc: add Meson8b SoC compatibility") Signed-off-by: Martin Blumenstingl <martin.blumenstingl@googlemail.com> Cc: <Stable@vger.kernel.org> Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
2017-12-02iio: adc: meson-saradc: initialize the bandgap correctly on older SoCsMartin Blumenstingl
Meson8 and Meson8b do not have the MESON_SAR_ADC_REG11 register. The bandgap setting for these SoCs is configured in the MESON_SAR_ADC_DELTA_10 register instead. Make the driver aware of this difference and use the correct bandgap register depending on the SoC. This has worked fine on Meson8 and Meson8b because the bootloader is already initializing the bandgap setting. Fixes: 6c76ed31cd05 ("iio: adc: meson-saradc: add Meson8b SoC compatibility") Signed-off-by: Martin Blumenstingl <martin.blumenstingl@googlemail.com> Cc: <Stable@vger.kernel.org> Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
2017-12-02iio: adc: meson-saradc: fix the bit_idx of the adc_en clockMartin Blumenstingl
Meson8 and Meson8b SoCs use the the SAR ADC gate clock provided by the MESON_SAR_ADC_REG3 register within the SAR ADC register area. According to the datasheet (and the existing MESON_SAR_ADC_REG3_CLK_EN definition) the gate is on bit 30. The fls() function returns the last set bit, which is "bit index + 1" (fls(MESON_SAR_ADC_REG3_CLK_EN) returns 31). Fix this by switching to __ffs() which returns the first set bit, which is bit 30 in our case. This off by one error results in the ADC not being usable on devices where the bootloader did not enable the clock. Fixes: 3adbf3427330 ("iio: adc: add a driver for the SAR ADC found in Amlogic Meson SoCs") Signed-off-by: Martin Blumenstingl <martin.blumenstingl@googlemail.com> Cc: <Stable@vger.kernel.org> Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
2017-12-02iio: proximity: sx9500: Assign interrupt from GpioIo()Andy Shevchenko
The commit 0f0796509c07 ("iio: remove gpio interrupt probing from drivers that use a single interrupt") removed custom IRQ assignment for the drivers which are enumerated via ACPI or OF. Unfortunately, some ACPI tables have IRQ line defined as GpioIo() resource and thus automatic IRQ allocation will fail. Partially revert the commit 0f0796509c07 to restore original behaviour. Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com> Acked-by: Mika Westerberg <mika.westerberg@linux.intel.com> Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
2017-12-02iio: adc: cpcap: fix incorrect validationPan Bian
Function platform_get_irq_byname() returns a negative error code on failure, and a zero or positive number on success. However, in function cpcap_adc_probe(), positive IRQ numbers are also taken as error cases. Use "if (ddata->irq < 0)" instead of "if (!ddata->irq)" to validate the return value of platform_get_irq_byname(). Signed-off-by: Pan Bian <bianpan2016@163.com> Fixes: 25ec249632d50 ("iio: adc: cpcap: Add minimal support for CPCAP PMIC ADC") Reviewed-by: Sebastian Reichel <sebastian.reichel@collabora.co.uk> Acked-by: Tony Lindgren <tony@atomide.com> Cc: <Stable@vger.kernel.org> Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
2017-12-01Merge tag 'nfs-for-4.15-2' of git://git.linux-nfs.org/projects/anna/linux-nfsLinus Torvalds
Pull NFS client fixes from Anna Schumaker: "These patches fix a problem with compiling using an old version of gcc, and also fix up error handling in the SUNRPC layer. - NFSv4: Ensure gcc 4.4.4 can compile initialiser for "invalid_stateid" - SUNRPC: Allow connect to return EHOSTUNREACH - SUNRPC: Handle ENETDOWN errors" * tag 'nfs-for-4.15-2' of git://git.linux-nfs.org/projects/anna/linux-nfs: SUNRPC: Handle ENETDOWN errors SUNRPC: Allow connect to return EHOSTUNREACH NFSv4: Ensure gcc 4.4.4 can compile initialiser for "invalid_stateid"
2017-12-01Merge tag 'xfs-4.15-fixes-4' of git://git.kernel.org/pub/scm/fs/xfs/xfs-linuxLinus Torvalds
Pull xfs fixes from Darrick Wong: "Here are some bug fixes for 4.15-rc2. - fix memory leaks that appeared after removing ifork inline data buffer - recover deferred rmap update log items in correct order - fix memory leaks when buffer construction fails - fix memory leaks when bmbt is corrupt - fix some uninitialized variables and math problems in the quota scrubber - add some omitted attribution tags on the log replay commit - fix some UBSAN complaints about integer overflows with large sparse files - implement an effective inode mode check in online fsck - fix log's inability to retry quota item writeout due to transient errors" * tag 'xfs-4.15-fixes-4' of git://git.kernel.org/pub/scm/fs/xfs/xfs-linux: xfs: Properly retry failed dquot items in case of error during buffer writeback xfs: scrub inode mode properly xfs: remove unused parameter from xfs_writepage_map xfs: ubsan fixes xfs: calculate correct offset in xfs_scrub_quota_item xfs: fix uninitialized variable in xfs_scrub_quota xfs: fix leaks on corruption errors in xfs_bmap.c xfs: fortify xfs_alloc_buftarg error handling xfs: log recovery should replay deferred ops in order xfs: always free inline data before resetting inode fork during ifree
2017-12-01Merge tag 'riscv-for-linus-4.15-rc2_cleanups' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/palmer/linux Pull RISC-V cleanups and ABI fixes from Palmer Dabbelt: "This contains a handful of small cleanups that are a result of feedback that didn't make it into our original patch set, either because the feedback hadn't been given yet, I missed the original emails, or we weren't ready to submit the changes yet. I've been maintaining the various cleanup patch sets I have as their own branches, which I then merged together and signed. Each merge commit has a short summary of the changes, and each branch is based on your latest tag (4.15-rc1, in this case). If this isn't the right way to do this then feel free to suggest something else, but it seems sane to me. Here's a short summary of the changes, roughly in order of how interesting they are. - libgcc.h has been moved from include/lib, where it's the only member, to include/linux. This is meant to avoid tab completion conflicts. - VDSO entries for clock_get/gettimeofday/getcpu have been added. These are simple syscalls now, but we want to let glibc use them from the start so we can make them faster later. - A VDSO entry for instruction cache flushing has been added so userspace can flush the instruction cache. - The VDSO symbol versions for __vdso_cmpxchg{32,64} have been removed, as those VDSO entries don't actually exist. - __io_writes has been corrected to respect the given type. - A new READ_ONCE in arch_spin_is_locked(). - __test_and_op_bit_ord() is now actually ordered. - Various small fixes throughout the tree to enable allmodconfig to build cleanly. - Removal of some dead code in our atomic support headers. - Improvements to various comments in our atomic support headers" * tag 'riscv-for-linus-4.15-rc2_cleanups' of git://git.kernel.org/pub/scm/linux/kernel/git/palmer/linux: (23 commits) RISC-V: __io_writes should respect the length argument move libgcc.h to include/linux RISC-V: Clean up an unused include RISC-V: Allow userspace to flush the instruction cache RISC-V: Flush I$ when making a dirty page executable RISC-V: Add missing include RISC-V: Use define for get_cycles like other architectures RISC-V: Provide stub of setup_profiling_timer() RISC-V: Export some expected symbols for modules RISC-V: move empty_zero_page definition to C and export it RISC-V: io.h: type fixes for warnings RISC-V: use RISCV_{INT,SHORT} instead of {INT,SHORT} for asm macros RISC-V: use generic serial.h RISC-V: remove spin_unlock_wait() RISC-V: `sfence.vma` orderes the instruction cache RISC-V: Add READ_ONCE in arch_spin_is_locked() RISC-V: __test_and_op_bit_ord should be strongly ordered RISC-V: Remove smb_mb__{before,after}_spinlock() RISC-V: Remove __smp_bp__{before,after}_atomic RISC-V: Comment on why {,cmp}xchg is ordered how it is ...
2017-12-01Merge tag 'arm64-fixes' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux Pull arm64 fixes from Will Deacon: "The critical one here is a fix for fpsimd register corruption across signals which was introduced by the SVE support code (the register files overlap), but the others are worth having as well. Summary: - Fix FP register corruption when SVE is not available or in use - Fix out-of-tree module build failure when CONFIG_ARM64_MODULE_PLTS=y - Missing 'const' generating errors with LTO builds - Remove unsupported events from Cortex-A73 PMU description - Removal of stale and incorrect comments" * tag 'arm64-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux: arm64: context: Fix comments and remove pointless smp_wmb() arm64: cpu_ops: Add missing 'const' qualifiers arm64: perf: remove unsupported events for Cortex-A73 arm64: fpsimd: Fix failure to restore FPSIMD state after signals arm64: pgd: Mark pgd_cache as __ro_after_init arm64: ftrace: emit ftrace-mod.o contents through code arm64: module-plts: factor out PLT generation code for ftrace arm64: mm: cleanup stale AIVIVT references
2017-12-01Merge branch 'cpsw-ale-cleanups'David S. Miller
Grygorii Strashko says: ==================== net: ethernet: ti: cpsw/ale clean up and optimization This is set of non critical clean ups and optimizations for TI CPSW and ALE drivers. Rebased on top on net-next. ==================== Signed-off-by: David S. Miller <davem@davemloft.net>
2017-12-01net: ethernet: ti: ale: fix port check in cpsw_ale_control_set/getGrygorii Strashko
ALE ports number includes the Host port and ext Ports, and ALE ports numbering starts from 0, so correct corresponding port checks in cpsw_ale_control_set/get(). Signed-off-by: Grygorii Strashko <grygorii.strashko@ti.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2017-12-01net: ethernet: ti: ale: use devm_kzalloc in cpsw_ale_create()Grygorii Strashko
Use cpsw_ale_create in cpsw_ale_create(). This also makes cpsw_ale_destroy() function nop, so remove it. Signed-off-by: Grygorii Strashko <grygorii.strashko@ti.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2017-12-01net: ethernet: ti: ale: move static initialization in cpsw_ale_create()Grygorii Strashko
Move static initialization from cpsw_ale_start() to cpsw_ale_create() as it does not make much sence to perform static initializtion in cpsw_ale_start() which is called everytime netif[s] is opened. Signed-off-by: Grygorii Strashko <grygorii.strashko@ti.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2017-12-01net: ethernet: ti: ale: optimize ale entry mask bits configuartionGrygorii Strashko
The ale->params.ale_ports parameter can be used to deriver values for all ale entry mask bits: port_mask_bits, port_mask_bits, port_num_bits. Hence, calculate above values and drop all hardcoded values. For port_num_bits calcualtion use order_base_2() API. Signed-off-by: Grygorii Strashko <grygorii.strashko@ti.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2017-12-01net: ethernet: ti: ale: disable ale from stop()Grygorii Strashko
ALE is enabled from cpsw_ale_start() now, but disabled only from cpsw_ale_destroy() which introduces inconsitance as cpsw_ale_start() is called when netif[s] is opened, but cpsw_ale_destroy() is called when driver is removed. Hence, move ALE disabling in cpsw_ale_stop(). Signed-off-by: Grygorii Strashko <grygorii.strashko@ti.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2017-12-01net: ethernet: ti: ale: use proper io apisGrygorii Strashko
Switch to use writel_relaxed/readl_relaxed() IO API instead of raw version as it is recommended. Signed-off-by: Grygorii Strashko <grygorii.strashko@ti.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2017-12-01net: ethernet: ti: cpsw: fix ale port numbersGrygorii Strashko
TI OMAP/Sitara SoCs have fixed number of ALE ports 3, which includes Host port also. Hence, use fixed value instead of value calcualted from DT, which can be set by user and might not reflect actual HW configuration. Signed-off-by: Grygorii Strashko <grygorii.strashko@ti.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2017-12-01net: ethernet: ti: cpsw: move mac_hi/lo defines in cpsw.hGrygorii Strashko
Move mac_hi/lo defines in common header cpsw.h and re-use them for netcp_ethss.c. Signed-off-by: Grygorii Strashko <grygorii.strashko@ti.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2017-12-01net: ethernet: ti: cpsw: move platform data struct to .c fileGrygorii Strashko
CPSW platform data struct cpsw_platform_data and struct cpsw_slave_data are used only incide cpsw.c module, so move these definitions there. Signed-off-by: Grygorii Strashko <grygorii.strashko@ti.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2017-12-01net: ethernet: ti: cpsw: use proper io apisGrygorii Strashko
Switch to use writel_relaxed/readl_relaxed() IO API instead of raw version as it is recommended. Signed-off-by: Grygorii Strashko <grygorii.strashko@ti.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2017-12-01net: ethernet: ti: cpsw: drop unused var poll from cpsw_update_channels_resGrygorii Strashko
Drop unused variable "poll" from cpsw_update_channels_res(). Signed-off-by: Grygorii Strashko <grygorii.strashko@ti.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2017-12-01RISC-V: Fixes for clean allmodconfig buildPalmer Dabbelt
Olaf said: Here's a short series of patches that produces a working allmodconfig. Would be nice to see them go in so we can add build coverage. I've dropped patches 8 and 10 from the original set: * [PATCH 08/10] (RISC-V: Set __ARCH_WANT_RENAMEAT to pick up generic version) has a better fix that I've sent out for review, we don't want renameat. * [PATCH 10/10] (input: joystick: riscv has get_cycles) has already been taken into Dmitry Torokhov's tree.
2017-12-01move libgcc.h to include/linuxPalmer Dabbelt
2017-12-01RISC-V: __io_writes should respect the length argumentPalmer Dabbelt
2017-12-01RISC-V: User-Visible ChangesPalmer Dabbelt
This merge contains the user-visible, ABI-breaking changes that we want to make sure we have in Linux before our first release. Highlights include: * VDSO entries for clock_get/gettimeofday/getcpu have been added. These are simple syscalls now, but we want to let glibc use them from the start so we can make them faster later. * A VDSO entry for instruction cache flushing has been added so userspace can flush the instruction cache. * The VDSO symbol versions for __vdso_cmpxchg{32,64} have been removed, as those VDSO entries don't actually exist. Conflicts: arch/riscv/include/asm/tlbflush.h
2017-12-01RISC-V Atomic CleanupsPalmer Dabbelt
This patch set is the result of some feedback that filtered through after our original patch set was reviewed, some of which was the result of me missing some email. It contains: * A new READ_ONCE in arch_spin_is_locked() * __test_and_op_bit_ord() is now actually ordered * Improvements to various comments * Removal of some dead code
2017-12-01RISC-V: __io_writes should respect the length argumentPalmer Dabbelt
Whoops -- I must have just been being an idiot again. Thanks to Segher for finding the bug :). CC: Segher Boessenkool <segher@kernel.crashing.org> Signed-off-by: Palmer Dabbelt <palmer@sifive.com>