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2020-04-07Documentation: cpu-idle-cooling: Fix diagram for 33% duty cycleSergey Vidishev1-2/+2
Signed-off-by: Sergey Vidishev <[email protected]> Signed-off-by: Daniel Lezcano <[email protected]> Link: https://lore.kernel.org/r/2374188.AZIXMmL6Zy@sergeyv-box
2020-04-07thermal: devfreq_cooling: inline all stubs for CONFIG_DEVFREQ_THERMAL=nMartin Blumenstingl1-1/+1
When CONFIG_DEVFREQ_THERMAL is disabled all functions except of_devfreq_cooling_register_power() were already inlined. Also inline the last function to avoid compile errors when multiple drivers call of_devfreq_cooling_register_power() when CONFIG_DEVFREQ_THERMAL is not set. Compilation failed with the following message: multiple definition of `of_devfreq_cooling_register_power' (which then lists all usages of of_devfreq_cooling_register_power()) Thomas Zimmermann reported this problem [0] on a kernel config with CONFIG_DRM_LIMA={m,y}, CONFIG_DRM_PANFROST={m,y} and CONFIG_DEVFREQ_THERMAL=n after both, the lima and panfrost drivers gained devfreq cooling support. [0] https://www.spinics.net/lists/dri-devel/msg252825.html Fixes: a76caf55e5b356 ("thermal: Add devfreq cooling") Cc: [email protected] Reported-by: Thomas Zimmermann <[email protected]> Signed-off-by: Martin Blumenstingl <[email protected]> Tested-by: Thomas Zimmermann <[email protected]> Signed-off-by: Daniel Lezcano <[email protected]> Link: https://lore.kernel.org/r/[email protected]
2020-04-07drm/nouveau/kms/nv50-: wait for FIFO space on PIO channelsBen Skeggs3-6/+25
Signed-off-by: Ben Skeggs <[email protected]>
2020-04-07drm/nouveau/nvif: protect waits against GPU falling off the busBen Skeggs11-22/+102
Signed-off-by: Ben Skeggs <[email protected]>
2020-04-07drm/nouveau/nvif: access PTIMER through usermode class, if availableBen Skeggs3-5/+24
Signed-off-by: Ben Skeggs <[email protected]>
2020-04-07drm/nouveau/gr/gp107,gp108: implement workaround for HW hanging during initBen Skeggs1-0/+26
Certain boards with GP107/GP108 chipsets hang (often, but randomly) for unknown reasons during GR initialisation. The first tell-tale symptom of this issue is: nouveau 0000:01:00.0: bus: MMIO read of 00000000 FAULT at 409800 [ TIMEOUT ] appearing in dmesg, likely followed by many other failures being logged. Karol found this WAR for the issue a while back, but efforts to isolate the root cause and proper fix have not yielded success so far. I've modified the original patch to include a few more details, limit it to GP107/GP108 by default, and added a config option to override this choice. Signed-off-by: Ben Skeggs <[email protected]> Reviewed-by: Karol Herbst <[email protected]>
2020-04-07drm/nouveau: workaround runpm fail by disabling PCI power management on ↵Karol Herbst2-0/+65
certain intel bridges Fixes the infamous 'runtime PM' bug many users are facing on Laptops with Nvidia Pascal GPUs by skipping said PCI power state changes on the GPU. Depending on the used kernel there might be messages like those in demsg: "nouveau 0000:01:00.0: Refused to change power state, currently in D3" "nouveau 0000:01:00.0: can't change power state from D3cold to D0 (config space inaccessible)" followed by backtraces of kernel crashes or timeouts within nouveau. It's still unkown why this issue exists, but this is a reliable workaround and solves a very annoying issue for user having to choose between a crashing kernel or higher power consumption of their Laptops. Signed-off-by: Karol Herbst <[email protected]> Cc: Bjorn Helgaas <[email protected]> Cc: Lyude Paul <[email protected]> Cc: Rafael J. Wysocki <[email protected]> Cc: Mika Westerberg <[email protected]> Cc: [email protected] Cc: [email protected] Cc: [email protected] Cc: [email protected] Bugzilla: https://bugzilla.kernel.org/show_bug.cgi?id=205623 Signed-off-by: Ben Skeggs <[email protected]>
2020-04-07drm/nouveau/svm: remove useless SVM range checkRalph Campbell1-3/+0
When nouveau processes GPU faults, it checks to see if the fault address falls within the "unmanaged" range which is reserved for fixed allocations instead of addresses chosen by the core mm code. If start is greater than or equal to svmm->unmanaged.limit, then limit will also be greater than svmm->unmanaged.limit which is greater than svmm->unmanaged.start and the start = max_t(u64, start, svmm->unmanaged.limit) will change nothing. Just remove the useless lines of code. Signed-off-by: Ralph Campbell <[email protected]> Signed-off-by: Ben Skeggs <[email protected]>
2020-04-07drm/nouveau/svm: check for SVM initialized before migratingRalph Campbell1-0/+5
When migrating system memory to GPU memory, check that SVM has been enabled. Even though most errors can be ignored since migration is a performance optimization, return an error because this is a violation of the API. Signed-off-by: Ralph Campbell <[email protected]> Signed-off-by: Ben Skeggs <[email protected]>
2020-04-07drm/nouveau/svm: fix vma range check for migrationRalph Campbell1-0/+1
find_vma_intersection(mm, start, end) only guarantees that end is greater than or equal to vma->vm_start but doesn't guarantee that start is greater than or equal to vma->vm_start. The calculation for the intersecting range in nouveau_svmm_bind() isn't accounting for this and can call migrate_vma_setup() with a starting address less than vma->vm_start. This results in migrate_vma_setup() returning -EINVAL for the range instead of nouveau skipping that part of the range and migrating the rest. Signed-off-by: Ralph Campbell <[email protected]> Signed-off-by: Ben Skeggs <[email protected]>
2020-04-07drm/nouveau: remove checks for return value of debugfs functionsWambui Karuga1-12/+8
As there is no need to check for the return value of debugfs_create_file and drm_debugfs_create_files, remove unnecessary checks and error handling in nouveau_drm_debugfs_init. Signed-off-by: Wambui Karuga <[email protected]> Signed-off-by: Ben Skeggs <[email protected]>
2020-04-07drm/nouveau/ttm: evict other IO mappings when running out of BAR1 spaceBen Skeggs1-2/+7
Signed-off-by: Ben Skeggs <[email protected]>
2020-04-06Merge branch 'next' into for-linusDmitry Torokhov8-210/+651
Prepare input updates for 5.7 merge window.
2020-04-06leds: core: Fix warning message when init_dataRicardo Ribalda Delgado1-1/+1
The warning message when a led is renamed due to name collition can fail to show proper original name if init_data is used. Eg: [ 9.073996] leds-gpio a0040000.leds_0: Led (null) renamed to red_led_1 due to name collision Fixes: bb4e9af0348d ("leds: core: Add support for composing LED class device names") Signed-off-by: Ricardo Ribalda Delgado <[email protected]> Acked-by: Jacek Anaszewski <[email protected]> Signed-off-by: Pavel Machek <[email protected]>
2020-04-06leds: make functions easier to understandPavel Machek1-10/+26
Group LED functions according to functionality, and add some explaining comments. Signed-off-by: Pavel Machek <[email protected]>
2020-04-06leds: sort Makefile entriesPavel Machek1-50/+50
Sort Makefile entries to reduce risk of rejects. Signed-off-by: Pavel Machek <[email protected]>
2020-04-06leds: old enums are not really applicable to new codePavel Machek1-0/+1
Warn about old defines that probably should not be used. Signed-off-by: Pavel Machek <[email protected]>
2020-04-06leds: ip30: label power LED as suchPavel Machek1-1/+1
Make label "white:power" to be consistent with dt-bindings/leds/common.h . Signed-off-by: Pavel Machek <[email protected]>
2020-04-06leds: lm3532: make bitfield 'enabled' unsignedColin Ian King1-1/+1
The bitfield 'enabled' should bit unsigned, so make it unsigned. Signed-off-by: Colin Ian King <[email protected]> Signed-off-by: Pavel Machek <[email protected]>
2020-04-06NFS: Clean up process of marking inode stale.Trond Myklebust5-8/+19
Instead of the various open coded calls to set the NFS_INO_STALE bit and call nfs_zap_caches(), consolidate them into a single function nfs_set_inode_stale(). Signed-off-by: Trond Myklebust <[email protected]>
2020-04-06Merge tag 'acpi-5.7-rc1-2' of ↵Linus Torvalds27-77/+155
git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm Pull more ACPI updates from Rafael Wysocki: "Additional ACPI updates. These update the ACPICA code in the kernel to the 20200326 upstream revision, fix an ACPI-related CPU hotplug deadlock on x86, update Intel Tiger Lake device IDs in some places, add a new ACPI backlight blacklist entry, update the "acpi_backlight" kernel command line switch documentation and clean up a CPPC library routine. Specifics: - Update the ACPICA code in the kernel to upstream revision 20200326 including: * Fix for a typo in a comment field (Bob Moore) * acpiExec namespace init file fixes (Bob Moore) * Addition of NHLT to the known tables list (Cezary Rojewski) * Conversion of PlatformCommChannel ASL keyword to PCC (Erik Kaneda) * acpiexec cleanup (Erik Kaneda) * WSMT-related typo fix (Erik Kaneda) * sprintf() utility function fix (John Levon) * IVRS IVHD type 11h parsing implementation (Michał Żygowski) * IVRS IVHD type 10h reserved field name fix (Michał Żygowski) - Fix ACPI-related CPU hotplug deadlock on x86 (Qian Cai) - Fix Intel Tiger Lake ACPI device IDs in several places (Gayatri Kammela) - Add ACPI backlight blacklist entry for Acer Aspire 5783z (Hans de Goede) - Fix documentation of the "acpi_backlight" kernel command line switch (Randy Dunlap) - Clean up the acpi_get_psd_map() CPPC library routine (Liguang Zhang)" * tag 'acpi-5.7-rc1-2' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm: x86: ACPI: fix CPU hotplug deadlock thermal: int340x_thermal: fix: Update Tiger Lake ACPI device IDs platform/x86: intel-hid: fix: Update Tiger Lake ACPI device ID ACPI: Update Tiger Lake ACPI device IDs ACPI: video: Use native backlight on Acer Aspire 5783z ACPI: video: Docs update for "acpi_backlight" kernel parameter options ACPICA: Update version 20200326 ACPICA: Fixes for acpiExec namespace init file ACPICA: Add NHLT table signature ACPICA: WSMT: Fix typo, no functional change ACPICA: utilities: fix sprintf() ACPICA: acpiexec: remove redeclaration of acpi_gbl_db_opt_no_region_support ACPICA: Change PlatformCommChannel ASL keyword to PCC ACPICA: Fix IVRS IVHD type 10h reserved field name ACPICA: Implement IVRS IVHD type 11h parsing ACPICA: Fix a typo in a comment field ACPI: CPPC: clean up acpi_get_psd_map()
2020-04-06macsec: fix NULL dereference in macsec_upd_offload()Davide Caratti1-0/+3
macsec_upd_offload() gets the value of MACSEC_OFFLOAD_ATTR_TYPE without checking its presence in the request message, and this causes a NULL dereference. Fix it rejecting any configuration that does not include this attribute. Reported-and-tested-by: [email protected] Fixes: dcb780fb2795 ("net: macsec: add nla support for changing the offloading selection") Signed-off-by: Davide Caratti <[email protected]> Signed-off-by: David S. Miller <[email protected]>
2020-04-06skbuff.h: Improve the checksum related commentsDexuan Cui1-19/+19
Fixed the punctuation and some typos. Improved some sentences with minor changes. No change of semantics or code. Reviewed-by: Matthew Wilcox (Oracle) <[email protected]> Reviewed-by: Randy Dunlap <[email protected]> Signed-off-by: Dexuan Cui <[email protected]> Signed-off-by: David S. Miller <[email protected]>
2020-04-06net: dsa: bcm_sf2: Ensure correct sub-node is parsedFlorian Fainelli1-1/+6
When the bcm_sf2 was converted into a proper platform device driver and used the new dsa_register_switch() interface, we would still be parsing the legacy DSA node that contained all the port information since the platform firmware has intentionally maintained backward and forward compatibility to client programs. Ensure that we do parse the correct node, which is "ports" per the revised DSA binding. Fixes: d9338023fb8e ("net: dsa: bcm_sf2: Make it a real platform device driver") Signed-off-by: Florian Fainelli <[email protected]> Reviewed-by: Vivien Didelot <[email protected]> Signed-off-by: David S. Miller <[email protected]>
2020-04-06qed: remove redundant assignment to variable 'rc'Colin Ian King1-1/+1
The variable 'rc' is being assigned a value that is never read and it is being updated later with a new value. The assignment is redundant and can be removed. Addresses-Coverity: ("Unused value") Signed-off-by: Colin Ian King <[email protected]> Signed-off-by: David S. Miller <[email protected]>
2020-04-06wimax: remove some redundant assignments to variable resultColin Ian King1-5/+2
In function i2400m_bm_buf_alloc there is no need to use a variable 'result' to return -ENOMEM, just return the literal value. In the function i2400m_setup the variable 'result' is initialized with a value that is never read, it is a redundant assignment that can be removed. Addresses-Coverity: ("Unused value") Signed-off-by: Colin Ian King <[email protected]> Signed-off-by: David S. Miller <[email protected]>
2020-04-06Merge tag 'pm-5.7-rc1-2' of ↵Linus Torvalds13-8/+389
git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm Pull more power management updates from Rafael Wysocki: "Additional power management updates. These fix a corner-case suspend-to-idle wakeup issue on systems where the ACPI SCI is shared with another wakeup source, add a kernel command line option to set pm_debug_messages via the kernel command line, add a document desctibing system-wide suspend and resume code flows, modify cpufreq Kconfig to choose schedutil as the preferred governor by default in a couple of cases and do some assorted cleanups. Specifics: - Fix corner-case suspend-to-idle wakeup issue on systems where the ACPI SCI is shared with another wakeup source (Hans de Goede). - Add document describing system-wide suspend and resume code flows to the admin guide (Rafael Wysocki). - Add kernel command line option to set pm_debug_messages (Chen Yu). - Choose schedutil as the preferred scaling governor by default on ARM big.LITTLE systems and on x86 systems using the intel_pstate driver in the passive mode (Linus Walleij, Rafael Wysocki). - Drop racy and redundant checks from the PM core's device_prepare() routine (Rafael Wysocki). - Make resume from hibernation take the hibernation_restore() return value into account (Dexuan Cui)" * tag 'pm-5.7-rc1-2' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm: platform/x86: intel_int0002_vgpio: Use acpi_register_wakeup_handler() ACPI: PM: Add acpi_[un]register_wakeup_handler() Documentation: PM: sleep: Document system-wide suspend code flows cpufreq: Select schedutil when using big.LITTLE PM: sleep: Add pm_debug_messages kernel command line option PM: sleep: core: Drop racy and redundant checks from device_prepare() PM: hibernate: Propagate the return value of hibernation_restore() cpufreq: intel_pstate: Select schedutil as the default governor
2020-04-06Merge branch 'mlxsw-fixes'David S. Miller1-6/+12
Ido Schimmel says: ==================== mlxsw: spectrum_flower: Do not stop at FLOW_ACTION_{VLAN_MANGLE, PRIORITY} Petr says: The handlers for FLOW_ACTION_VLAN_MANGLE and FLOW_ACTION_PRIORITY end by returning whatever the lower-level function that they call returns. If there are more actions lined up after one of these actions, those are never offloaded. Each of the two patches fixes one of those actions. v2: * Patch #1: Use valid SHA1 ID in Fixes line (Dave) ==================== Signed-off-by: David S. Miller <[email protected]>
2020-04-06mlxsw: spectrum_flower: Do not stop at FLOW_ACTION_VLAN_MANGLEPetr Machata1-3/+6
The handler for FLOW_ACTION_VLAN_MANGLE ends by returning whatever the lower-level function that it calls returns. If there are more actions lined up after this action, those are never offloaded. Fix by only bailing out when the called function returns an error. Fixes: a150201a70da ("mlxsw: spectrum: Add support for vlan modify TC action") Signed-off-by: Petr Machata <[email protected]> Reviewed-by: Jiri Pirko <[email protected]> Signed-off-by: Ido Schimmel <[email protected]> Signed-off-by: David S. Miller <[email protected]>
2020-04-06mlxsw: spectrum_flower: Do not stop at FLOW_ACTION_PRIORITYPetr Machata1-3/+6
The handler for FLOW_ACTION_PRIORITY ends by returning whatever the lower-level function that it calls returns. If there are more actions lined up after this action, those are never offloaded. Fix by only bailing out when the called function returns an error. Fixes: 463957e3fbab ("mlxsw: spectrum_flower: Offload FLOW_ACTION_PRIORITY") Signed-off-by: Petr Machata <[email protected]> Reviewed-by: Jiri Pirko <[email protected]> Signed-off-by: Ido Schimmel <[email protected]> Signed-off-by: David S. Miller <[email protected]>
2020-04-06r8169: change back SG and TSO to be disabled by defaultHeiner Kallweit1-15/+14
There has been a number of reports that using SG/TSO on different chip versions results in tx timeouts. However for a lot of people SG/TSO works fine. Therefore disable both features by default, but allow users to enable them. Use at own risk! Fixes: 93681cd7d94f ("r8169: enable HW csum and TSO") Signed-off-by: Heiner Kallweit <[email protected]> Signed-off-by: David S. Miller <[email protected]>
2020-04-06net: dsa: bcm_sf2: Do not register slave MDIO bus with OFFlorian Fainelli1-1/+1
We were registering our slave MDIO bus with OF and doing so with assigning the newly created slave_mii_bus of_node to the master MDIO bus controller node. This is a bad thing to do for a number of reasons: - we are completely lying about the slave MII bus is arranged and yet we still want to control which MDIO devices it probes. It was attempted before to play tricks with the bus_mask to perform that: https://www.spinics.net/lists/netdev/msg429420.html but the approach was rightfully rejected - the device_node reference counting is messed up and we are effectively doing a double probe on the devices we already probed using the master, this messes up all resources reference counts (such as clocks) The proper fix for this as indicated by David in his reply to the thread above is to use a platform data style registration so as to control exactly which devices we probe: https://www.spinics.net/lists/netdev/msg430083.html By using mdiobus_register(), our slave_mii_bus->phy_mask value is used as intended, and all the PHY addresses that must be redirected towards our slave MDIO bus is happening while other addresses get redirected towards the master MDIO bus. Fixes: 461cd1b03e32 ("net: dsa: bcm_sf2: Register our slave MDIO bus") Signed-off-by: Florian Fainelli <[email protected]> Reviewed-by: Vivien Didelot <[email protected]> Signed-off-by: David S. Miller <[email protected]>
2020-04-06ipv6: rpl: fix loop iterationAlexander Aring1-3/+3
This patch fix the loop iteration by not walking over the last iteration. The cmpri compressing value exempt the last segment. As the code shows the last iteration will be overwritten by cmpre value handling which is for the last segment. I think this doesn't end in any bufferoverflows because we work on worst case temporary buffer sizes but it ends in not best compression settings in some cases. Fixes: 8610c7c6e3bd ("net: ipv6: add support for rpl sr exthdr") Signed-off-by: Alexander Aring <[email protected]> Signed-off-by: David S. Miller <[email protected]>
2020-04-06tun: Don't put_page() for all negative return values from XDP programWill Deacon1-4/+6
When an XDP program is installed, tun_build_skb() grabs a reference to the current page fragment page if the program returns XDP_REDIRECT or XDP_TX. However, since tun_xdp_act() passes through negative return values from the XDP program, it is possible to trigger the error path by mistake and accidentally drop a reference to the fragments page without taking one, leading to a spurious free. This is believed to be the cause of some KASAN use-after-free reports from syzbot [1], although without a reproducer it is not possible to confirm whether this patch fixes the problem. Ensure that we only drop a reference to the fragments page if the XDP transmit or redirect operations actually fail. [1] https://syzkaller.appspot.com/bug?id=e76a6af1be4acd727ff6bbca669833f98cbf5d95 Cc: "David S. Miller" <[email protected]> Cc: Alexei Starovoitov <[email protected]> Cc: Daniel Borkmann <[email protected]> CC: Eric Dumazet <[email protected]> Acked-by: Jason Wang <[email protected]> Fixes: 8ae1aff0b331 ("tuntap: split out XDP logic") Signed-off-by: Will Deacon <[email protected]> Signed-off-by: David S. Miller <[email protected]>
2020-04-06Merge tag 'csky-for-linus-5.7-rc1' of git://github.com/c-sky/csky-linuxLinus Torvalds34-74/+1807
Pull csky updates from Guo Ren: - Add kproobes/uprobes support - Add lockdep, rseq, gcov support - Fixup init_fpu - Fixup ftrace_modify deadlock - Fixup speculative execution on IO area * tag 'csky-for-linus-5.7-rc1' of git://github.com/c-sky/csky-linux: csky: Fixup cpu speculative execution to IO area csky: Add uprobes support csky: Add kprobes supported csky: Enable LOCKDEP_SUPPORT csky: Enable the gcov function csky: Fixup get wrong psr value from phyical reg csky/ftrace: Fixup ftrace_modify_code deadlock without CPU_HAS_ICACHE_INS csky: Implement ftrace with regs csky: Add support for restartable sequence csky: Implement ptrace regs and stack API csky: Fixup init_fpu compile warning with __init
2020-04-06Merge tag 'fsnotify_for_v5.7-rc1' of ↵Linus Torvalds12-363/+637
git://git.kernel.org/pub/scm/linux/kernel/git/jack/linux-fs Pull fsnotify updates from Jan Kara: "This implements the fanotify FAN_DIR_MODIFY event. This event reports the name in a directory under which a change happened and together with the directory filehandle and fstatat() allows reliable and efficient implementation of directory synchronization" * tag 'fsnotify_for_v5.7-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/jack/linux-fs: fanotify: Fix the checks in fanotify_fsid_equal fanotify: report name info for FAN_DIR_MODIFY event fanotify: record name info for FAN_DIR_MODIFY event fanotify: Drop fanotify_event_has_fid() fanotify: prepare to report both parent and child fid's fanotify: send FAN_DIR_MODIFY event flavor with dir inode and name fanotify: divorce fanotify_path_event and fanotify_fid_event fanotify: Store fanotify handles differently fanotify: Simplify create_fd() fanotify: fix merging marks masks with FAN_ONDIR fanotify: merge duplicate events on parent and child fsnotify: replace inode pointer with an object id fsnotify: simplify arguments passing to fsnotify_parent() fsnotify: use helpers to access data by data_type fsnotify: funnel all dirent events through fsnotify_name() fsnotify: factor helpers fsnotify_dentry() and fsnotify_file() fsnotify: tidy up FS_ and FAN_ constants
2020-04-06Merge tag 'for_v5.7-rc1' of ↵Linus Torvalds3-7/+15
git://git.kernel.org/pub/scm/linux/kernel/git/jack/linux-fs Pull ext2/udf updates from Jan Kara: "Cleanups and fixes for ext2 and one cleanup for udf" * tag 'for_v5.7-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/jack/linux-fs: ext2: fix empty body warnings when -Wextra is used ext2: fix debug reference to ext2_xattr_cache udf: udf_sb.h: Replace zero-length array with flexible-array member ext2: xattr.h: Replace zero-length array with flexible-array member ext2: Silence lockdep warning about reclaim under xattr_sem
2020-04-06Merge tag '9p-for-5.7' of git://github.com/martinetd/linuxLinus Torvalds5-75/+90
Pull 9p updates from Dominique Martinet: "Not much new, but a few patches for this cycle: - Fix read with O_NONBLOCK to allow incomplete read and return immediately - Rest is just cleanup (indent, unused field in struct, extra semicolon)" * tag '9p-for-5.7' of git://github.com/martinetd/linux: net/9p: remove unused p9_req_t aux field 9p: read only once on O_NONBLOCK 9pnet: allow making incomplete read requests 9p: Remove unneeded semicolon 9p: Fix Kconfig indentation
2020-04-06Merge branch 'fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfsLinus Torvalds1-1/+1
Pull vfs pathwalk fix from Al Viro: "Dumb braino in legitimize_path()..." * 'fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs: fix a braino in legitimize_path()
2020-04-06fix a braino in legitimize_path()Al Viro1-1/+1
brown paperbag time... wrong order of arguments ended up confusing the values to check dentry and mount_lock seqcounts against. Reported-by: kernel test robot <[email protected]> Fixes: 2aa38470853a ("non-RCU analogue of the previous commit") Tested-by: kernel test robot <[email protected]> Signed-off-by: Al Viro <[email protected]>
2020-04-06Merge branches 'acpi-cppc', 'acpi-video' and 'acpi-drivers'Rafael J. Wysocki9-38/+30
* acpi-cppc: ACPI: CPPC: clean up acpi_get_psd_map() * acpi-video: ACPI: video: Use native backlight on Acer Aspire 5783z ACPI: video: Docs update for "acpi_backlight" kernel parameter options * acpi-drivers: thermal: int340x_thermal: fix: Update Tiger Lake ACPI device IDs platform/x86: intel-hid: fix: Update Tiger Lake ACPI device ID ACPI: Update Tiger Lake ACPI device IDs
2020-04-06Merge branch 'acpica'Rafael J. Wysocki15-31/+115
* acpica: ACPICA: Update version 20200326 ACPICA: Fixes for acpiExec namespace init file ACPICA: Add NHLT table signature ACPICA: WSMT: Fix typo, no functional change ACPICA: utilities: fix sprintf() ACPICA: acpiexec: remove redeclaration of acpi_gbl_db_opt_no_region_support ACPICA: Change PlatformCommChannel ASL keyword to PCC ACPICA: Fix IVRS IVHD type 10h reserved field name ACPICA: Implement IVRS IVHD type 11h parsing ACPICA: Fix a typo in a comment field
2020-04-06Merge branches 'pm-sleep' and 'pm-cpufreq'Rafael J. Wysocki8-8/+288
* pm-sleep: Documentation: PM: sleep: Document system-wide suspend code flows PM: sleep: Add pm_debug_messages kernel command line option PM: sleep: core: Drop racy and redundant checks from device_prepare() PM: hibernate: Propagate the return value of hibernation_restore() * pm-cpufreq: cpufreq: Select schedutil when using big.LITTLE cpufreq: intel_pstate: Select schedutil as the default governor
2020-04-05parisc: remove nargs from __SYSCALLFiroz Khan2-3/+3
The __SYSCALL macro's arguments are system call number, system call entry name and number of arguments for the system call. Argument- nargs in __SYSCALL(nr, entry, nargs) is neither calculated nor used anywhere. So it would be better to keep the implementaion as __SYSCALL(nr, entry). This will unifies the implementation with some other architetures too. Signed-off-by: Firoz Khan <[email protected]> Signed-off-by: Helge Deller <[email protected]>
2020-04-05parisc: Refactor alternative code to accept multiple conditionsHelge Deller1-18/+19
Allow the alternative loop to accept multiple conditions when replacing existing code, e.g. ALTERNATIVE(ALT_COND_NO_SMP | ALT_COND_RUN_ON_QEMU, INSN_NOP) Signed-off-by: Helge Deller <[email protected]>
2020-04-05Merge tag 'for-v5.7' of ↵Linus Torvalds12-126/+211
git://git.kernel.org/pub/scm/linux/kernel/git/sre/linux-power-supply Pull power supply and reset changes from Sebastian Reichel: "Core: - Nothing Drivers: - at91-reset: cleanups, proper handling for sam9x60 - sc27xx, charger-manager: allow building as module - sc27xx: add support to read current charge capacity - axp288: more quirks for weird hardware - misc fixes" * tag 'for-v5.7' of git://git.kernel.org/pub/scm/linux/kernel/git/sre/linux-power-supply: (26 commits) power: reset: sc27xx: Allow the SC27XX poweroff driver building into a module power: reset: sc27xx: Change to use cpu_down() power: reset: sc27xx: Power off the external subsystems' connection power: twl4030: Use scnprintf() for avoiding potential buffer overflow power: supply: bq27xxx_battery: Silence deferred-probe error power: reset: at91-reset: handle nrst async for sam9x60 power: reset: at91-reset: get rid of at91_reset_data power: reset: at91-reset: keep only one reset function power: reset: at91-reset: make at91sam9g45_restart() generic power: reset: at91-reset: introduce ramc_lpr to struct at91_reset power: reset: at91-reset: use r4 as tmp argument power: reset: at91-reset: introduce args member in at91_reset_data power: reset: at91-reset: introduce struct at91_reset_data power: reset: at91-reset: devm_kzalloc() for at91_reset data structure power: reset: at91-reset: pass rstc base address to at91_reset_status() power: reset: at91-reset: convert reset in pointer to struct at91_reset power: reset: at91-reset: add notifier block to struct at91_reset power: reset: at91-reset: add sclk to struct at91_reset power: reset: at91-reset: add ramc_base[] to struct at91_reset power: reset: at91-reset: introduce struct at91_reset ...
2020-04-05parisc: Rework arch_rw locking functionsHelge Deller2-82/+67
Clean up the arch read/write locking functions based on the arc implemenation. This improves readability of those functions. Signed-off-by: Helge Deller <[email protected]>
2020-04-05parisc: Improve interrupt handling in arch_spin_lock_flags()Helge Deller1-8/+17
Rewrite arch_spin_lock() and arch_spin_lock_flags() to not re-enable and disable the PSW_SM_I interrupt flag too often. Signed-off-by: Helge Deller <[email protected]>
2020-04-05parisc: Replace setup_irq() by request_irq()afzal mohammed2-22/+8
request_irq() is preferred over setup_irq(). Invocations of setup_irq() occur after memory allocators are ready. Per tglx[1], setup_irq() existed in olden days when allocators were not ready by the time early interrupts were initialized. Hence replace setup_irq() by request_irq(). [1] https://lkml.kernel.org/r/alpine.DEB.2.20.1710191609480.1971@nanos Signed-off-by: afzal mohammed <[email protected]> Signed-off-by: Helge Deller <[email protected]>
2020-04-05Merge tag 'perf-urgent-2020-04-05' of ↵Linus Torvalds100-622/+3181
git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip Pull more perf updates from Thomas Gleixner: "Perf updates all over the place: core: - Support for cgroup tracking in samples to allow cgroup based analysis tools: - Support for cgroup analysis - Commandline option and hotkey for perf top to change the sort order - A set of fixes all over the place - Various build system related improvements - Updates of the X86 pmu event JSON data - Documentation updates" * tag 'perf-urgent-2020-04-05' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: (55 commits) perf python: Fix clang detection to strip out options passed in $CC perf tools: Support Python 3.8+ in Makefile perf script: Fix invalid read of directory entry after closedir() perf script report: Fix SEGFAULT when using DWARF mode perf script: add -S/--symbols documentation perf pmu-events x86: Use CPU_CLK_UNHALTED.THREAD in Kernel_Utilization metric perf events parser: Add missing Intel CPU events to parser perf script: Allow --symbol to accept hexadecimal addresses perf report/top TUI: Fix title line formatting perf top: Support hotkey to change sort order perf top: Support --group-sort-idx to change the sort order perf symbols: Fix arm64 gap between kernel start and module end perf build-test: Honour JOBS to override detection of number of cores perf script: Add --show-cgroup-events option perf top: Add --all-cgroups option perf record: Add --all-cgroups option perf record: Support synthesizing cgroup events perf report: Add 'cgroup' sort key perf cgroup: Maintain cgroup hierarchy perf tools: Basic support for CGROUP event ...
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