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2019-12-29iio: buffer-dmaengine: Add module informationLars-Peter Clausen1-0/+5
Make sure that the industrialio-buffer-dmaengine has proper license information so it can be build as a module and loaded without tainting the kernel. Signed-off-by: Lars-Peter Clausen <lars@metafoo.de> Signed-off-by: Alexandru Ardelean <alexandru.ardelean@analog.com> Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
2019-12-29iio: accel: bma180: Use explicit member assignmentLinus Walleij1-24/+44
This uses the C99 explicit .member assignment for the variant data in struct bma180_part_info. This makes it easier to understand and add new variants. Cc: Peter Meerwald <pmeerw@pmeerw.net> Cc: Oleksandr Kravchenko <o.v.kravchenko@globallogic.com> Signed-off-by: Linus Walleij <linus.walleij@linaro.org> Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
2019-12-29iio: accel: bma180: Basic regulator supportLinus Walleij1-0/+42
This brings up the VDD and VDDIO regulators using the regulator framework. Platforms that do not use regulators will provide stubs or dummy regulators. Cc: Peter Meerwald <pmeerw@pmeerw.net> Cc: Oleksandr Kravchenko <o.v.kravchenko@globallogic.com> Signed-off-by: Linus Walleij <linus.walleij@linaro.org> Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
2019-12-29iio: accel: bma180: Add dev helper variableLinus Walleij1-9/+10
Having a shorthand "dev" instead of &client->dev everywhere makes the code easier to read (more compact). Cc: Peter Meerwald <pmeerw@pmeerw.net> Cc: Oleksandr Kravchenko <o.v.kravchenko@globallogic.com> Signed-off-by: Linus Walleij <linus.walleij@linaro.org> Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
2019-12-29iio: imu: st_lsm6dsx: enable sensor-hub support for lsm6dsmLorenzo Bianconi4-15/+94
Enabled i2c master controller support for LSM6DSM sensor. Enable ext_sensor0 for lsm6dsm. This series has been tested using LIS2MDL as slave device connected to the i2c controller of the LSM6DSM Signed-off-by: Lorenzo Bianconi <lorenzo@kernel.org> Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
2019-12-29iio: imu: st_lsm6dsx: rename st_lsm6dsx_shub_read_reg in ↵Lorenzo Bianconi1-5/+6
st_lsm6dsx_shub_read_output Rename st_lsm6dsx_shub_read_reg routine in st_lsm6dsx_shub_read_output since it is used to read from sensorhub channel0 output register Signed-off-by: Lorenzo Bianconi <lorenzo@kernel.org> Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
2019-12-29iio: imu: st_lsm6dsx: check if shub_output reg is located in primary pageLorenzo Bianconi3-15/+28
Check if the sensor hub output register is located in the primary or in the secondary memory page. This is a preliminary patch to support i2c master controller on lsm6dsm devices Signed-off-by: Lorenzo Bianconi <lorenzo@kernel.org> Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
2019-12-29iio: imu: st_lsm6dsx: check if pull_up is located in primary pageLorenzo Bianconi2-5/+14
Check if the pull up register is located in the primary or in the secondary memory page. This is a preliminary patch to support i2c master controller on lsm6dsm devices Signed-off-by: Lorenzo Bianconi <lorenzo@kernel.org> Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
2019-12-29iio: imu: st_lsm6dsx: check if master_enable is located in primary pageLorenzo Bianconi3-5/+14
Check if the master enable register is located in the primary or in the secondary memory page. This is a preliminary patch to support i2c master controller on lsm6dsm devices Signed-off-by: Lorenzo Bianconi <lorenzo@kernel.org> Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
2019-12-29iio: imu: st_lsm6dsx: export max num of slave devices in ↵Lorenzo Bianconi3-2/+5
st_lsm6dsx_shub_settings Export max number of slave devices supported by the i2c master controller in st_lsm6dsx_shub_settings data structure. This is a preliminary patch to support i2c master controller on lsm6dsm sensors Signed-off-by: Lorenzo Bianconi <lorenzo@kernel.org> Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
2019-12-29iio: light: remove unneeded semicolonChen Zhou1-1/+1
Fixes coccicheck warning: ./drivers/iio/light/lm3533-als.c:745:2-3: Unneeded semicolon Signed-off-by: Chen Zhou <chenzhou10@huawei.com> Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
2019-12-29iio: chemical: atlas-ph-sensor: rename atlas-ph-sensor to atlas-sensorMatt Ranostay2-6/+6
Since the orginal scope of the driver was to only support the pH product from Atlas it has evolved to other sensors. Rename the file, driver name, and regmap to atlas-sensor which reflects this, although keep CONFIG_ATLAS_PH_SENSOR to not cause regressions with current configurations. Signed-off-by: Matt Ranostay <matt.ranostay@konsulko.com> Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
2019-12-29iio: st_sensors: Describe function parameters in kernel-docAndy Shevchenko1-0/+3
Kernel documentation script complains that some of the function parameters are not described: .../common/st_sensors/st_sensors_trigger.c:29: warning: Function parameter or member 'indio_dev' not described in 'st_sensors_new_samples_available' .../common/st_sensors/st_sensors_trigger.c:29: warning: Function parameter or member 'sdata' not described in 'st_sensors_new_samples_available' Describe function parameters where it's appropriate. Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com> Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
2019-12-29iio: pressure: st_press: Mark default_press_pdata with __maybe_unusedAndy Shevchenko1-1/+1
Since we put static variable to a header file it's copied to each module that includes the header. But not all of them are actually used it. Mark default_press_pdata with __maybe_unused to calm a compiler down: In file included from drivers/iio/pressure/st_pressure_spi.c:18: drivers/iio/pressure/st_pressure.h:40:46: warning: ‘default_press_pdata’ defined but not used [-Wunused-const-variable=] 40 | static const struct st_sensors_platform_data default_press_pdata = { | ^~~~~~~~~~~~~~~~~~~ ... Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com> Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
2019-12-29iio: accel: st_accel: Mark default_accel_pdata with __maybe_unusedAndy Shevchenko1-1/+1
Since we put static variable to a header file it's copied to each module that includes the header. But not all of them are actually used it. Mark default_accel_pdata with __maybe_unused to calm a compiler down: In file included from drivers/iio/accel/st_accel_i2c.c:19: drivers/iio/accel/st_accel.h:67:46: warning: ‘default_accel_pdata’ defined but not used [-Wunused-const-variable=] 67 | static const struct st_sensors_platform_data default_accel_pdata = { | ^~~~~~~~~~~~~~~~~~~ ... Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com> Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
2019-12-29iio: gyro: st_gyro: Mark gyro_pdata with __maybe_unusedAndy Shevchenko1-1/+1
Since we put static variable to a header file it's copied to each module that includes the header. But not all of them are actually used it. Mark gyro_pdata with __maybe_unused to calm a compiler down: In file included from drivers/iio/gyro/st_gyro_i2c.c:18: drivers/iio/gyro/st_gyro.h:31:46: warning: ‘gyro_pdata’ defined but not used [-Wunused-const-variable=] 31 | static const struct st_sensors_platform_data gyro_pdata = { | ^~~~~~~~~~ ... Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com> Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
2019-12-29iio: pressure: st_press: Drop unnecessary #else branch for ACPIAndy Shevchenko1-2/+0
ACPI_PTR() takes care of the argument in case of !CONFIG_ACPI. Remove unnecessary #else branch. Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com> Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
2019-12-29iio: accel: st_accel: Drop unnecessary #else branch for ACPIAndy Shevchenko1-2/+0
ACPI_PTR() takes care of the argument in case of !CONFIG_ACPI. Remove unnecessary #else branch. Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com> Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
2019-12-29iio: light: st_uvis25: Drop unneeded header inclusionAndy Shevchenko1-1/+0
There is no evidence that the driver supports or needs ACPI APIs. Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com> Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
2019-12-29iio: st_lsm6dsx: Make use of device propertiesAndy Shevchenko1-13/+13
Device property API allows to gather device resources from different sources, such as ACPI. Convert the drivers to unleash the power of device property API. Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com> Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
2019-12-29iio: st_lsm6dsx: Drop unneeded OF codeAndy Shevchenko2-4/+2
There is no need to have OF guard against ID table. Drop it for good. Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com> Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
2019-12-29iio: st_lsm6dsx: Mark predefined constants with __maybe_unusedAndy Shevchenko1-2/+5
Since we put static variable to a header file it's copied to each module that includes the header. But not all of them are actually used it. Mark predefined constants with __maybe_unused to calm a compiler down: In file included from drivers/iio/imu/st_lsm6dsx/st_lsm6dsx_i2c.c:17: .../st_lsm6dsx/st_lsm6dsx.h:399:28: warning: ‘st_lsm6dsx_available_scan_masks’ defined but not used [-Wunused-const-variable=] 399 | static const unsigned long st_lsm6dsx_available_scan_masks[] = {0x7, 0x0}; | ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ .../st_lsm6dsx/st_lsm6dsx.h:392:36: warning: ‘st_lsm6dsx_event’ defined but not used [-Wunused-const-variable=] 392 | static const struct iio_event_spec st_lsm6dsx_event = { | ^~~~~~~~~~~~~~~~ ... Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com> Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
2019-12-29iio: adc: ad7923: Add support for the ad7908/ad7918/ad7928Daniel Junho1-4/+44
The ad7928 is software compatible with the ad7923. The ad7908 and ad7918 are the 8 and 10-bit versions of the ad7928. Signed-off-by: Daniel Junho <djunho@gmail.com> Reviewed-by: Alexandru Ardelean <alexandru.ardelean@analog.com> Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
2019-12-29iio: adc: ad7923: Add of_device_id tableDaniel Junho1-0/+10
Accomplish device tree compatibility to driver AD7923 by adding of_device_id table and making a subsequent call to MODULE_DEVICE_TABLE. Signed-off-by: Daniel Junho <djunho@gmail.com> Reviewed-by: Alexandru Ardelean <alexandru.ardelean@analog.com> Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
2019-12-29iio: adc: ad7923: Fix checkpatch warningDaniel Junho1-1/+1
Fix checkpatch warning: WARNING: Prefer 'unsigned int' to bare use of 'unsigned' +static int ad7923_scan_direct(struct ad7923_state *st, unsigned ch) Signed-off-by: Daniel Junho <djunho@gmail.com> Reviewed-by: Alexandru Ardelean <alexandru.ardelean@analog.com> Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
2019-12-29iio: adc: ad7923: Remove the unused definesDaniel Junho1-4/+0
Removes the unused define AD7923_CHANNEL_x from the code. Signed-off-by: Daniel Junho <djunho@gmail.com> Reviewed-by: Alexandru Ardelean <alexandru.ardelean@analog.com> Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
2019-12-29iio: accel: bma400: basic regulator supportDan Robertson2-5/+38
Add support for the VDD and VDDIO regulators using the regulator framework. Signed-off-by: Dan Robertson <dan@dlrobertson.com> Reviewed-by: Linus Walleij <linus.walleij@linaro.org> Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
2019-12-29iio: accel: Add driver for the BMA400Dan Robertson6-0/+1004
Add a IIO driver for the Bosch BMA400 3-axes ultra-low power accelerometer. The driver supports reading from the acceleration and temperature registers. The driver also supports reading and configuring the output data rate, oversampling ratio, and scale. Signed-off-by: Dan Robertson <dan@dlrobertson.com> Reviewed-by: Andy Shevchenko <andy.shevchenko@gmail.com> Reviewed-by: Linus Walleij <linus.walleij@linaro.org> Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
2019-12-29dt-bindings: iio: accel: bma400: add bindingsDan Robertson1-0/+54
Add devicetree binding for the Bosch BMA400 3-axes ultra-low power accelerometer sensor. Signed-off-by: Dan Robertson <dan@dlrobertson.com> Reviewed-by: Linus Walleij <linus.walleij@linaro.org> Reviewed-by: Rob Herring <robh@kernel.org> Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
2019-12-23Merge 5.5-rc3 into staging-nextGreg Kroah-Hartman566-2976/+6495
We need the staging fixes in here as well. Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2019-12-23Linux 5.5-rc3Linus Torvalds1-1/+1
2019-12-23Merge branch 'fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfsLinus Torvalds6-3/+18
Pull vfs fixes from Al Viro: "Eric's s_inodes softlockup fixes + Jan's fix for recent regression from pipe rework" * 'fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs: fs: call fsnotify_sb_delete after evict_inodes fs: avoid softlockups in s_inodes iterators pipe: Fix bogus dereference in iov_iter_alignment()
2019-12-22Merge tag 'xfs-5.5-fixes-2' of git://git.kernel.org/pub/scm/fs/xfs/xfs-linuxLinus Torvalds13-104/+341
Pull xfs fixes from Darrick Wong: "Fix a few bugs that could lead to corrupt files, fsck complaints, and filesystem crashes: - Minor documentation fixes - Fix a file corruption due to read racing with an insert range operation. - Fix log reservation overflows when allocating large rt extents - Fix a buffer log item flags check - Don't allow administrators to mount with sunit= options that will cause later xfs_repair complaints about the root directory being suspicious because the fs geometry appeared inconsistent - Fix a non-static helper that should have been static" * tag 'xfs-5.5-fixes-2' of git://git.kernel.org/pub/scm/fs/xfs/xfs-linux: xfs: Make the symbol 'xfs_rtalloc_log_count' static xfs: don't commit sunit/swidth updates to disk if that would cause repair failures xfs: split the sunit parameter update into two parts xfs: refactor agfl length computation function libxfs: resync with the userspace libxfs xfs: use bitops interface for buf log item AIL flag check xfs: fix log reservation overflows when allocating large rt extents xfs: stabilize insert range start boundary to avoid COW writeback race xfs: fix Sphinx documentation warning
2019-12-22Merge tag 'ext4_for_linus_stable' of ↵Linus Torvalds8-104/+116
git://git.kernel.org/pub/scm/linux/kernel/git/tytso/ext4 Pull ext4 bug fixes from Ted Ts'o: "Ext4 bug fixes, including a regression fix" * tag 'ext4_for_linus_stable' of git://git.kernel.org/pub/scm/linux/kernel/git/tytso/ext4: ext4: clarify impact of 'commit' mount option ext4: fix unused-but-set-variable warning in ext4_add_entry() jbd2: fix kernel-doc notation warning ext4: use RCU API in debug_print_tree ext4: validate the debug_want_extra_isize mount option at parse time ext4: reserve revoke credits in __ext4_new_inode ext4: unlock on error in ext4_expand_extra_isize() ext4: optimize __ext4_check_dir_entry() ext4: check for directory entries too close to block end ext4: fix ext4_empty_dir() for directories with holes
2019-12-22Merge tag 'block-5.5-20191221' of git://git.kernel.dk/linux-blockLinus Torvalds12-39/+37
Pull block fixes from Jens Axboe: "Let's try this one again, this time without the compat_ioctl changes. We've got those fixed up, but that can go out next week. This contains: - block queue flush lockdep annotation (Bart) - Type fix for bsg_queue_rq() (Bart) - Three dasd fixes (Stefan, Jan) - nbd deadlock fix (Mike) - Error handling bio user map fix (Yang) - iocost fix (Tejun) - sbitmap waitqueue addition fix that affects the kyber IO scheduler (David)" * tag 'block-5.5-20191221' of git://git.kernel.dk/linux-block: sbitmap: only queue kyber's wait callback if not already active block: fix memleak when __blk_rq_map_user_iov() is failed s390/dasd: fix typo in copyright statement s390/dasd: fix memleak in path handling error case s390/dasd/cio: Interpret ccw_device_get_mdc return value correctly block: Fix a lockdep complaint triggered by request queue flushing block: Fix the type of 'sts' in bsg_queue_rq() block: end bio with BLK_STS_AGAIN in case of non-mq devs and REQ_NOWAIT nbd: fix shutdown and recv work deadlock v2 iocost: over-budget forced IOs should schedule async delay
2019-12-22Merge tag 'for-linus' of git://git.kernel.org/pub/scm/virt/kvm/kvmLinus Torvalds8-46/+65
Pull KVM fixes from Paolo Bonzini: "PPC: - Fix a bug where we try to do an ultracall on a system without an ultravisor KVM: - Fix uninitialised sysreg accessor - Fix handling of demand-paged device mappings - Stop spamming the console on IMPDEF sysregs - Relax mappings of writable memslots - Assorted cleanups MIPS: - Now orphan, James Hogan is stepping down x86: - MAINTAINERS change, so long Radim and thanks for all the fish - supported CPUID fixes for AMD machines without SPEC_CTRL" * tag 'for-linus' of git://git.kernel.org/pub/scm/virt/kvm/kvm: MAINTAINERS: remove Radim from KVM maintainers MAINTAINERS: Orphan KVM for MIPS kvm: x86: Host feature SSBD doesn't imply guest feature AMD_SSBD kvm: x86: Host feature SSBD doesn't imply guest feature SPEC_CTRL_SSBD KVM: PPC: Book3S HV: Don't do ultravisor calls on systems without ultravisor KVM: arm/arm64: Properly handle faulting of device mappings KVM: arm64: Ensure 'params' is initialised when looking up sys register KVM: arm/arm64: Remove excessive permission check in kvm_arch_prepare_memory_region KVM: arm64: Don't log IMP DEF sysreg traps KVM: arm64: Sanely ratelimit sysreg messages KVM: arm/arm64: vgic: Use wrapper function to lock/unlock all vcpus in kvm_vgic_create() KVM: arm/arm64: vgic: Fix potential double free dist->spis in __kvm_vgic_destroy() KVM: arm/arm64: Get rid of unused arg in cpu_init_hyp_mode()
2019-12-22Merge tag 'riscv/for-v5.5-rc3' of ↵Linus Torvalds11-21/+40
git://git.kernel.org/pub/scm/linux/kernel/git/riscv/linux Pull RISC-V fixes from Paul Walmsley: "Several fixes, and one cleanup, for RISC-V. Fixes: - Fix an error in a Kconfig file that resulted in an undefined Kconfig option "CONFIG_CONFIG_MMU" - Fix undefined Kconfig option "CONFIG_CONFIG_MMU" - Fix scratch register clearing in M-mode (affects nommu users) - Fix a mismerge on my part that broke the build for CONFIG_SPARSEMEM_VMEMMAP users Cleanup: - Move SiFive L2 cache-related code to drivers/soc, per request" * tag 'riscv/for-v5.5-rc3' of git://git.kernel.org/pub/scm/linux/kernel/git/riscv/linux: riscv: move sifive_l2_cache.c to drivers/soc riscv: define vmemmap before pfn_to_page calls riscv: fix scratch register clearing in M-mode. riscv: Fix use of undefined config option CONFIG_CONFIG_MMU
2019-12-22Merge git://git.kernel.org/pub/scm/linux/kernel/git/netdev/netLinus Torvalds176-1005/+2138
Pull networking fixes from David Miller: 1) Several nf_flow_table_offload fixes from Pablo Neira Ayuso, including adding a missing ipv6 match description. 2) Several heap overflow fixes in mwifiex from qize wang and Ganapathi Bhat. 3) Fix uninit value in bond_neigh_init(), from Eric Dumazet. 4) Fix non-ACPI probing of nxp-nci, from Stephan Gerhold. 5) Fix use after free in tipc_disc_rcv(), from Tuong Lien. 6) Enforce limit of 33 tail calls in mips and riscv JIT, from Paul Chaignon. 7) Multicast MAC limit test is off by one in qede, from Manish Chopra. 8) Fix established socket lookup race when socket goes from TCP_ESTABLISHED to TCP_LISTEN, because there lacks an intervening RCU grace period. From Eric Dumazet. 9) Don't send empty SKBs from tcp_write_xmit(), also from Eric Dumazet. 10) Fix active backup transition after link failure in bonding, from Mahesh Bandewar. 11) Avoid zero sized hash table in gtp driver, from Taehee Yoo. 12) Fix wrong interface passed to ->mac_link_up(), from Russell King. 13) Fix DSA egress flooding settings in b53, from Florian Fainelli. 14) Memory leak in gmac_setup_txqs(), from Navid Emamdoost. 15) Fix double free in dpaa2-ptp code, from Ioana Ciornei. 16) Reject invalid MTU values in stmmac, from Jose Abreu. 17) Fix refcount leak in error path of u32 classifier, from Davide Caratti. 18) Fix regression causing iwlwifi firmware crashes on boot, from Anders Kaseorg. 19) Fix inverted return value logic in llc2 code, from Chan Shu Tak. 20) Disable hardware GRO when XDP is attached to qede, frm Manish Chopra. 21) Since we encode state in the low pointer bits, dst metrics must be at least 4 byte aligned, which is not necessarily true on m68k. Add annotations to fix this, from Geert Uytterhoeven. * git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net: (160 commits) sfc: Include XDP packet headroom in buffer step size. sfc: fix channel allocation with brute force net: dst: Force 4-byte alignment of dst_metrics selftests: pmtu: fix init mtu value in description hv_netvsc: Fix unwanted rx_table reset net: phy: ensure that phy IDs are correctly typed mod_devicetable: fix PHY module format qede: Disable hardware gro when xdp prog is installed net: ena: fix issues in setting interrupt moderation params in ethtool net: ena: fix default tx interrupt moderation interval net/smc: unregister ib devices in reboot_event net: stmmac: platform: Fix MDIO init for platforms without PHY llc2: Fix return statement of llc_stat_ev_rx_null_dsap_xid_c (and _test_c) net: hisilicon: Fix a BUG trigered by wrong bytes_compl net: dsa: ksz: use common define for tag len s390/qeth: don't return -ENOTSUPP to userspace s390/qeth: fix promiscuous mode after reset s390/qeth: handle error due to unsupported transport mode cxgb4: fix refcount init for TC-MQPRIO offload tc-testing: initial tdc selftests for cls_u32 ...
2019-12-22pipe: fix empty pipe check in pipe_write()Jan Stancek1-1/+1
LTP pipeio_1 test is hanging with v5.5-rc2-385-gb8e382a185eb, with read side observing empty pipe and sleeping and write side running out of space and then sleeping as well. In this scenario there are 5 writers and 1 reader. Problem is that after pipe_write() reacquires pipe lock, it re-checks for empty pipe with potentially stale 'head' and doesn't wake up read side anymore. pipe->tail can advance beyond 'head', because there are multiple writers. Use pipe->head for empty pipe check after reacquiring lock to observe current state. Testing: With patch, LTP pipeio_1 ran successfully in loop for 1 hour. Without patch it hanged within a minute. Fixes: 1b6b26ae7053 ("pipe: fix and clarify pipe write wakeup logic") Reported-by: Rachel Sibley <rasibley@redhat.com> Signed-off-by: Jan Stancek <jstancek@redhat.com> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2019-12-22Merge tag 'kvm-ppc-fixes-5.5-1' of ↵Paolo Bonzini73-696/+2712
git://git.kernel.org/pub/scm/linux/kernel/git/paulus/powerpc into kvm-master PPC KVM fix for 5.5 - Fix a bug where we try to do an ultracall on a system without an ultravisor.
2019-12-22MAINTAINERS: remove Radim from KVM maintainersPaolo Bonzini1-2/+0
Radim's kernel.org email is bouncing, which I take as a signal that he is not really able to deal with KVM at this time. Make MAINTAINERS match the effective value of KVM's bus factor. Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2019-12-22MAINTAINERS: Orphan KVM for MIPSJames Hogan1-2/+2
I haven't been active for 18 months, and don't have the hardware set up to test KVM for MIPS, so mark it as orphaned and remove myself as maintainer. Hopefully somebody from MIPS can pick this up. Signed-off-by: James Hogan <jhogan@kernel.org> Cc: Paolo Bonzini <pbonzini@redhat.com> Cc: "Radim Krčmář" <rkrcmar@redhat.com> Cc: Paul Burton <paulburton@kernel.org> Cc: Ralf Baechle <ralf@linux-mips.org> Cc: kvm@vger.kernel.org Cc: linux-mips@vger.kernel.org Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2019-12-22ext4: clarify impact of 'commit' mount optionJan Kara1-8/+11
The description of 'commit' mount option dates back to ext3 times. Update the description to match current meaning for ext4. Reported-by: Paul Richards <paul.richards@gmail.com> Signed-off-by: Jan Kara <jack@suse.cz> Link: https://lore.kernel.org/r/20191218111210.14161-1-jack@suse.cz Signed-off-by: Theodore Ts'o <tytso@mit.edu>
2019-12-22ext4: fix unused-but-set-variable warning in ext4_add_entry()Yunfeng Ye1-1/+3
Warning is found when compile with "-Wunused-but-set-variable": fs/ext4/namei.c: In function ‘ext4_add_entry’: fs/ext4/namei.c:2167:23: warning: variable ‘sbi’ set but not used [-Wunused-but-set-variable] struct ext4_sb_info *sbi; ^~~ Fix this by moving the variable @sbi under CONFIG_UNICODE. Signed-off-by: Yunfeng Ye <yeyunfeng@huawei.com> Reviewed-by: Ritesh Harjani <riteshh@linux.ibm.com> Link: https://lore.kernel.org/r/cb5eb904-224a-9701-c38f-cb23514b1fff@huawei.com Signed-off-by: Theodore Ts'o <tytso@mit.edu>
2019-12-22Merge tag 'trace-v5.5-rc2' of ↵Linus Torvalds6-8/+36
git://git.kernel.org/pub/scm/linux/kernel/git/rostedt/linux-trace Pull tracing fixes from Steven Rostedt: - Fix memory leak on error path of process_system_preds() - Lock inversion fix with updating tgid recording option - Fix histogram compare function on big endian machines - Fix histogram trigger function on big endian machines - Make trace_printk() irq sync on init for kprobe selftest correctness * tag 'trace-v5.5-rc2' of git://git.kernel.org/pub/scm/linux/kernel/git/rostedt/linux-trace: tracing: Fix endianness bug in histogram trigger samples/trace_printk: Wait for IRQ work to finish tracing: Fix lock inversion in trace_event_enable_tgid_record() tracing: Have the histogram compare functions convert to u64 first tracing: Avoid memory leak in process_system_preds()
2019-12-22Merge tag 'libnvdimm-fix-5.5-rc3' of ↵Linus Torvalds2-0/+7
git://git.kernel.org/pub/scm/linux/kernel/git/nvdimm/nvdimm Pull libnvdimm fix from Dan Williams: "A minor regression fix. The libnvdimm unit tests were expecting to mock calls to ioremap_nocache() which disappeared in v5.5-rc1. This fix has appeared in -next and collided with some cleanups that Christoph has planned for v5.6, but he will fix up his branch once this goes in. Summary: - Restore the operation of the libnvdimm unit tests after the removal of ioremap_nocache()" * tag 'libnvdimm-fix-5.5-rc3' of git://git.kernel.org/pub/scm/linux/kernel/git/nvdimm/nvdimm: tools/testing/nvdimm: Fix mock support for ioremap
2019-12-22tracing: Fix endianness bug in histogram triggerSven Schnelle1-1/+20
At least on PA-RISC and s390 synthetic histogram triggers are failing selftests because trace_event_raw_event_synth() always writes a 64 bit values, but the reader expects a field->size sized value. On little endian machines this doesn't hurt, but on big endian this makes the reader always read zero values. Link: http://lore.kernel.org/linux-trace-devel/20191218074427.96184-4-svens@linux.ibm.com Cc: stable@vger.kernel.org Fixes: 4b147936fa509 ("tracing: Add support for 'synthetic' events") Acked-by: Tom Zanussi <tom.zanussi@linux.intel.com> Signed-off-by: Sven Schnelle <svens@linux.ibm.com> Signed-off-by: Steven Rostedt (VMware) <rostedt@goodmis.org>
2019-12-22samples/trace_printk: Wait for IRQ work to finishSven Schnelle1-0/+1
trace_printk schedules work via irq_work_queue(), but doesn't wait until it was processed. The kprobe_module.tc testcase does: :;: "Load module again, which means the event1 should be recorded";: modprobe trace-printk grep "event1:" trace so the grep which checks the trace file might run before the irq work was processed. Fix this by adding a irq_work_sync(). Link: http://lore.kernel.org/linux-trace-devel/20191218074427.96184-3-svens@linux.ibm.com Cc: stable@vger.kernel.org Fixes: af2a0750f3749 ("selftests/ftrace: Improve kprobe on module testcase to load/unload module") Signed-off-by: Sven Schnelle <svens@linux.ibm.com> Signed-off-by: Steven Rostedt (VMware) <rostedt@goodmis.org>
2019-12-22tracing: Fix lock inversion in trace_event_enable_tgid_record()Prateek Sood2-4/+12
Task T2 Task T3 trace_options_core_write() subsystem_open() mutex_lock(trace_types_lock) mutex_lock(event_mutex) set_tracer_flag() trace_event_enable_tgid_record() mutex_lock(trace_types_lock) mutex_lock(event_mutex) This gives a circular dependency deadlock between trace_types_lock and event_mutex. To fix this invert the usage of trace_types_lock and event_mutex in trace_options_core_write(). This keeps the sequence of lock usage consistent. Link: http://lkml.kernel.org/r/0101016eef175e38-8ca71caf-a4eb-480d-a1e6-6f0bbc015495-000000@us-west-2.amazonses.com Cc: stable@vger.kernel.org Fixes: d914ba37d7145 ("tracing: Add support for recording tgid of tasks") Signed-off-by: Prateek Sood <prsood@codeaurora.org> Signed-off-by: Steven Rostedt (VMware) <rostedt@goodmis.org>
2019-12-21Merge tag 's390-5.5-4' of ↵Linus Torvalds6-11/+32
git://git.kernel.org/pub/scm/linux/kernel/git/s390/linux Pull s390 fixes from Vasily Gorbik: - Fix unwinding from irq context of interrupted user process. - Add purgatory build missing symbols check. That helped to uncover and fix missing symbols when built with kasan support enabled. - Couple of ftrace fixes. Avoid broken stack trace and fix recursion loop in function_graph tracer. * tag 's390-5.5-4' of git://git.kernel.org/pub/scm/linux/kernel/git/s390/linux: s390/ftrace: save traced function caller s390/unwind: stop gracefully at user mode pt_regs in irq stack s390/purgatory: do not build purgatory with kcov, kasan and friends s390/purgatory: Make sure we fail the build if purgatory has missing symbols s390/ftrace: fix endless recursion in function_graph tracer
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