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2017-03-16openrisc: fix issue handling 8 byte get_user callsStafford Horne
Was getting the following error with allmodconfig: ERROR: "__get_user_bad" [lib/test_user_copy.ko] undefined! This was simply a missing break statement, causing an unwanted fall through. Signed-off-by: Stafford Horne <shorne@gmail.com>
2017-03-16openrisc: xchg: fix `computed is not used` warningStafford Horne
When building allmodconfig this warning shows. fs/ocfs2/file.c: In function 'ocfs2_file_write_iter': ./arch/openrisc/include/asm/cmpxchg.h:81:3: warning: value computed is not used [-Wunused-value] ((typeof(*(ptr)))__xchg((unsigned long)(with), (ptr), sizeof(*(ptr)))) ^ Applying the same patch logic that was done to the cmpxchg macro. Signed-off-by: Stafford Horne <shorne@gmail.com>
2017-03-15gfs2: Avoid alignment hole in struct lm_locknameAndreas Gruenbacher
Commit 88ffbf3e03 switches to using rhashtables for glocks, hashing over the entire struct lm_lockname instead of its individual fields. On some architectures, struct lm_lockname contains a hole of uninitialized memory due to alignment rules, which now leads to incorrect hash values. Get rid of that hole. Signed-off-by: Andreas Gruenbacher <agruenba@redhat.com> Signed-off-by: Bob Peterson <rpeterso@redhat.com> CC: <stable@vger.kernel.org> #v4.3+
2017-03-15xfs: verify inline directory data forksDarrick J. Wong
When we're reading or writing the data fork of an inline directory, check the contents to make sure we're not overflowing buffers or eating garbage data. xfs/348 corrupts an inline symlink into an inline directory, triggering a buffer overflow bug. Signed-off-by: Darrick J. Wong <darrick.wong@oracle.com> Reviewed-by: Brian Foster <bfoster@redhat.com> --- v2: add more checks consistent with _dir2_sf_check and make the verifier usable from anywhere.
2017-03-14platform/x86: intel-hid: do not set parents of input devices explicitlyMichał Kępień
devm_input_allocate_device() already causes the supplied struct device to be set as the parent of the input device, so doing it again is redundant. Signed-off-by: Michał Kępień <kernel@kempniu.pl> Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com> Reviewed-and-tested-by: Alex Hung <alex.hung@canonical.com>
2017-03-14platform/x86: toshiba_acpi: remove sparse_keymap_free() callsMichał Kępień
As sparse_keymap_setup() now uses a managed memory allocation for the keymap copy it creates, the latter is freed automatically. Remove all calls to sparse_keymap_free(). Signed-off-by: Michał Kępień <kernel@kempniu.pl> Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
2017-03-14platform/x86: toshiba-wmi: remove sparse_keymap_free() callsMichał Kępień
As sparse_keymap_setup() now uses a managed memory allocation for the keymap copy it creates, the latter is freed automatically. Remove all calls to sparse_keymap_free(). Signed-off-by: Michał Kępień <kernel@kempniu.pl> Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
2017-03-14platform/x86: topstar-laptop: remove sparse_keymap_free() callsMichał Kępień
As sparse_keymap_setup() now uses a managed memory allocation for the keymap copy it creates, the latter is freed automatically. Remove all calls to sparse_keymap_free(). Signed-off-by: Michał Kępień <kernel@kempniu.pl> Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
2017-03-14platform/x86: panasonic-laptop: remove sparse_keymap_free() callsMichał Kępień
As sparse_keymap_setup() now uses a managed memory allocation for the keymap copy it creates, the latter is freed automatically. Remove all calls to sparse_keymap_free(). As this reduces acpi_pcc_destroy_input() to one line, replace all calls to that function with direct calls to input_unregister_device(). Signed-off-by: Michał Kępień <kernel@kempniu.pl> Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
2017-03-14platform/x86: msi-wmi: remove sparse_keymap_free() callsMichał Kępień
As sparse_keymap_setup() now uses a managed memory allocation for the keymap copy it creates, the latter is freed automatically. Remove all calls to sparse_keymap_free(). Signed-off-by: Michał Kępień <kernel@kempniu.pl> Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
2017-03-14platform/x86: msi-laptop: remove sparse_keymap_free() callsMichał Kępień
As sparse_keymap_setup() now uses a managed memory allocation for the keymap copy it creates, the latter is freed automatically. Remove all calls to sparse_keymap_free(). As this reduces msi_laptop_input_destroy() to one line, replace all calls to that function with direct calls to input_unregister_device(). Signed-off-by: Michał Kępień <kernel@kempniu.pl> Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
2017-03-14platform/x86: ideapad-laptop: remove sparse_keymap_free() callsMichał Kępień
As sparse_keymap_setup() now uses a managed memory allocation for the keymap copy it creates, the latter is freed automatically. Remove all calls to sparse_keymap_free(). Signed-off-by: Michał Kępień <kernel@kempniu.pl> Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
2017-03-14platform/x86: hp-wmi: remove sparse_keymap_free() callsMichał Kępień
As sparse_keymap_setup() now uses a managed memory allocation for the keymap copy it creates, the latter is freed automatically. Remove all calls to sparse_keymap_free(). Signed-off-by: Michał Kępień <kernel@kempniu.pl> Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
2017-03-14platform/x86: eeepc-laptop: remove sparse_keymap_free() callsMichał Kępień
As sparse_keymap_setup() now uses a managed memory allocation for the keymap copy it creates, the latter is freed automatically. Remove all calls to sparse_keymap_free(). Signed-off-by: Michał Kępień <kernel@kempniu.pl> Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
2017-03-14platform/x86: dell-wmi: remove sparse_keymap_free() callsMichał Kępień
As sparse_keymap_setup() now uses a managed memory allocation for the keymap copy it creates, the latter is freed automatically. Remove all calls to sparse_keymap_free(). As this reduces dell_wmi_input_destroy() to one line, replace all calls to that function with direct calls to input_unregister_device(). Signed-off-by: Michał Kępień <kernel@kempniu.pl> Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
2017-03-14platform/x86: dell-wmi-aio: remove sparse_keymap_free() callsMichał Kępień
As sparse_keymap_setup() now uses a managed memory allocation for the keymap copy it creates, the latter is freed automatically. Remove all calls to sparse_keymap_free(). Signed-off-by: Michał Kępień <kernel@kempniu.pl> Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
2017-03-14platform/x86: asus-wmi: remove sparse_keymap_free() callsMichał Kępień
As sparse_keymap_setup() now uses a managed memory allocation for the keymap copy it creates, the latter is freed automatically. Remove all calls to sparse_keymap_free(). Signed-off-by: Michał Kępień <kernel@kempniu.pl> Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
2017-03-14platform/x86: asus-laptop: remove sparse_keymap_free() callsMichał Kępień
As sparse_keymap_setup() now uses a managed memory allocation for the keymap copy it creates, the latter is freed automatically. Remove all calls to sparse_keymap_free(). Signed-off-by: Michał Kępień <kernel@kempniu.pl> Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
2017-03-14platform/x86: acer-wmi: remove sparse_keymap_free() callsMichał Kępień
As sparse_keymap_setup() now uses a managed memory allocation for the keymap copy it creates, the latter is freed automatically. Remove all calls to sparse_keymap_free(). Signed-off-by: Michał Kępień <kernel@kempniu.pl> Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
2017-03-14Merge branch 'ib/4.10-sparse-keymap-managed' of ↵Darren Hart
git://git.kernel.org/pub/scm/linux/kernel/git/dtor/input into testing
2017-03-14platform/x86: fujitsu-laptop: cleanup error labels in fujitsu_init()Michał Kępień
Error labels currently used in fujitsu_init() are really hard to follow: some (fail_laptop) indicate which operation has failed, others (fail_sysfs_group) indicate where unrolling should start and the rest (fail_platform_driver) is simply confusing. Change them to follow the pattern used throughout the rest of the module, i.e. make every label indicate the first unrolling operation it leads to. Signed-off-by: Michał Kępień <kernel@kempniu.pl> Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com> Reviewed-and-tested-by: Jonathan Woithe <jwoithe@just42.net>
2017-03-14platform/x86: fujitsu-laptop: only register backlight device if FUJ02B1 is ↵Michał Kępień
present As the backlight device registered by fujitsu-laptop relies on the FUJ02B1 ACPI device being present, only register the backlight device once that ACPI device is detected. Suggested-by: Alan Jenkins <alan-jenkins@tuffmail.co.uk> Signed-off-by: Michał Kępień <kernel@kempniu.pl> Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com> Reviewed-and-tested-by: Jonathan Woithe <jwoithe@just42.net>
2017-03-14platform/x86: fujitsu-laptop: sync backlight power status in ↵Michał Kępień
acpi_fujitsu_laptop_add() Registering an ACPI driver does not mean the device it handles has to exist. As the code which syncs backlight power status uses call_fext_func(), it needs the FUJ02E3 ACPI device to be present, so ensure that code is only run once the FUJ02E3 device is detected. Signed-off-by: Michał Kępień <kernel@kempniu.pl> Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com> Reviewed-and-tested-by: Jonathan Woithe <jwoithe@just42.net>
2017-03-14platform/x86: fujitsu-laptop: register backlight device in a separate functionMichał Kępień
Move code responsible for backlight device registration to a separate function in order to simplify error handling and decrease indentation. Simplify initialization of struct backlight_properties. Signed-off-by: Michał Kępień <kernel@kempniu.pl> Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com> Reviewed-and-tested-by: Jonathan Woithe <jwoithe@just42.net>
2017-03-14platform/x86: fujitsu-laptop: simplify brightness key event generation logicMichał Kępień
Returning early when there is no brightness change allows removal of a duplicate code block, makes the purpose of the following code clearer and allows the condition surrounding key event generation to be removed. Local integer variables can also be declared in a single line. Signed-off-by: Michał Kępień <kernel@kempniu.pl> Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com> Reviewed-and-tested-by: Jonathan Woithe <jwoithe@just42.net>
2017-03-14platform/x86: fujitsu-laptop: decrease indentation in acpi_fujitsu_bl_notify()Michał Kępień
acpi_fujitsu_bl_notify() is pretty deeply nested, which hurts readability. Strip off one level of indentation by returning early when the event code supplied as argument is not ACPI_FUJITSU_NOTIFY_CODE1. Signed-off-by: Michał Kępień <kernel@kempniu.pl> Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com> Reviewed-and-tested-by: Jonathan Woithe <jwoithe@just42.net>
2017-03-14platform/x86: ideapad-laptop: Add IdeaPad 310-15IKB to no_hw_rfkillSven Rebhan
Like other Lenovo models the IdeaPad 310-15IKB does not have an hw rfkill switch. This results in hard-blocked radios after boot, resulting in always blocked radios rendering them unusable. Add the IdeaPad 310-15IKB to the no_hw_rfkill DMI list and allows using the built-in radios. Signed-off-by: Sven Rebhan <Sven.Rebhan@googlemail.com> [andy: massaged commit message] Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
2017-03-14platform/x86: thinkpad_acpi: add mapping for new hotkeysChristian Kellner
The T470, X270 emits new hkey events in the 0x1311 - 0x1315 range. According to the user manual they should launch a user selected favorite application (star icon, 0x1311), snipping tool (0x1312, currently ignored), enable/disable bluetooth (0x1314) and open they keyboard settings (0x1315). The third nibble (0xf00) is used to differentiate between the original hotkeys, the adaptive keyboard codes and the new, additional ones. Signed-off-by: Christian Kellner <ckellner@redhat.com> Reviewed-by: Hans de Goede <hdegoede@redhat.com> Acked-by: Henrique de Moraes Holschuh <hmh@hmh.eng.br> Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
2017-03-14platform/x86: thinkpad_acpi: guard generic hotkey caseChristian Kellner
Currently when dispatching hotkeys we check if the scancode is in the range of 0 and TPACPI_HOTKEY_MAP_LEN, although the bottom 20 entries in the hotkey keymap are already adaptive keycodes. Therefore we introduce a TP_ACPI_HOTKEYSCAN_ADAPTIVE_START and ensure that we are in the range 0 and ADAPTIVE_START for the generic keycode case. Signed-off-by: Christian Kellner <ckellner@redhat.com> Reviewed-by: Hans de Goede <hdegoede@redhat.com> Acked-by: Henrique de Moraes Holschuh <hmh@hmh.eng.br> Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
2017-03-14platform/x86: intel-hid: remove redundant set_bit() callMichał Kępień
Remove redundant set_bit() call for KEY_RFKILL as it is already made by sparse_keymap_setup() due to KEY_RFKILL being assigned to event code 8 in intel_hid_keymap. Signed-off-by: Michał Kępień <kernel@kempniu.pl> Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com> Reviewed-and-tested-by: Alex Hung <alex.hung@canonical.com>
2017-03-14platform/x86: intel-hid: use devm_input_allocate_device() for HID events ↵Michał Kępień
input device intel_hid_input_setup() is only called from the platform driver's .probe callback. Use the devm variant of input_allocate_device() for allocating memory for the HID events input device in order to simplify two error paths and get rid of intel_hid_input_destroy(). Signed-off-by: Michał Kępień <kernel@kempniu.pl> Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com> Reviewed-and-tested-by: Alex Hung <alex.hung@canonical.com>
2017-03-14platform/x86: intel-hid: make intel_hid_set_enable() take a boolean argumentMichał Kępień
As the integer value passed to intel_hid_set_enable() is always explicitly passed and is used solely as a boolean value, make it a bool. Signed-off-by: Michał Kępień <kernel@kempniu.pl> Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com> Reviewed-and-tested-by: Alex Hung <alex.hung@canonical.com>
2017-03-14platform/x86: intel-hid: simplify enabling/disabling HID eventsMichał Kępień
ACPI method HDSM takes a single integer argument. Use acpi_execute_simple_method() instead of acpi_evaluate_object() for calling that ACPI method to simplify code and reduce the number of local variables inside intel_hid_set_enable(). Signed-off-by: Michał Kępień <kernel@kempniu.pl> Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com> Reviewed-and-tested-by: Alex Hung <alex.hung@canonical.com>
2017-03-14Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/netLinus Torvalds
Pull networking fixes from David Miller: 1) Ensure that mtu is at least IPV6_MIN_MTU in ipv6 VTI tunnel driver, from Steffen Klassert. 2) Fix crashes when user tries to get_next_key on an LPM bpf map, from Alexei Starovoitov. 3) Fix detection of VLAN fitlering feature for bnx2x VF devices, from Michal Schmidt. 4) We can get a divide by zero when TCP socket are morphed into listening state, fix from Eric Dumazet. 5) Fix socket refcounting bugs in skb_complete_wifi_ack() and skb_complete_tx_timestamp(). From Eric Dumazet. 6) Use after free in dccp_feat_activate_values(), also from Eric Dumazet. 7) Like bonding team needs to use ETH_MAX_MTU as netdev->max_mtu, from Jarod Wilson. 8) Fix use after free in vrf_xmit(), from David Ahern. 9) Don't do UDP Fragmentation Offload on IPComp ipsec packets, from Alexey Kodanev. 10) Properly check napi_complete_done() return value in order to decide whether to re-enable IRQs or not in amd-xgbe driver, from Thomas Lendacky. 11) Fix double free of hwmon device in marvell phy driver, from Andrew Lunn. 12) Don't crash on malformed netlink attributes in act_connmark, from Etienne Noss. 13) Don't remove routes with a higher metric in ipv6 ECMP route replace, from Sabrina Dubroca. 14) Don't write into a cloned SKB in ipv6 fragmentation handling, from Florian Westphal. 15) Fix routing redirect races in dccp and tcp, basically the ICMP handler can't modify the socket's cached route in it's locked by the user at this moment. From Jon Maxwell. * git://git.kernel.org/pub/scm/linux/kernel/git/davem/net: (108 commits) qed: Enable iSCSI Out-of-Order qed: Correct out-of-bound access in OOO history qed: Fix interrupt flags on Rx LL2 qed: Free previous connections when releasing iSCSI qed: Fix mapping leak on LL2 rx flow qed: Prevent creation of too-big u32-chains qed: Align CIDs according to DORQ requirement mlxsw: reg: Fix SPVMLR max record count mlxsw: reg: Fix SPVM max record count net: Resend IGMP memberships upon peer notification. dccp: fix memory leak during tear-down of unsuccessful connection request tun: fix premature POLLOUT notification on tun devices dccp/tcp: fix routing redirect race ucc/hdlc: fix two little issue vxlan: fix ovs support net: use net->count to check whether a netns is alive or not bridge: drop netfilter fake rtable unconditionally ipv6: avoid write to a possibly cloned skb net: wimax/i2400m: fix NULL-deref at probe isdn/gigaset: fix NULL-deref at probe ...
2017-03-15Merge tag 'drm-intel-fixes-2017-03-14' of ↵Dave Airlie
git://anongit.freedesktop.org/git/drm-intel into drm-fixes drm/i915 fixes for v4.11-rc3 * tag 'drm-intel-fixes-2017-03-14' of git://anongit.freedesktop.org/git/drm-intel: drm/i915: Fix forcewake active domain tracking drm/i915: Nuke skl_update_plane debug message from the pipe update critical section drm/i915: use correct node for handling cache domain eviction drm/i915: Drain the freed state from the tail of the next commit drm/i915: Nuke debug messages from the pipe update critical section drm/i915: Use pagecache write to prepopulate shmemfs from pwrite-ioctl drm/i915: Store a permanent error in obj->mm.pages drm/i915: Move updating color management to before vblank evasion drm/i915/gen9: Increase PCODE request timeout to 50ms drm/i915: Avoid tweaking evaluation thresholds on Baytrail v3 drm/i915: Remove the vma from the drm_mm if binding fails drm/i915/fbdev: Stop repeating tile configuration on stagnation drm/i915/glk: Fix watermark computations for third sprite plane drm/i915: Squelch any ktime/jiffie rounding errors for wait-ioctl
2017-03-15Merge branch 'for-upstream/malidp-fixes' of git://linux-arm.org/linux-ld ↵Dave Airlie
into drm-fixes * 'for-upstream/malidp-fixes' of git://linux-arm.org/linux-ld: drm: mali-dp: Fix smart layer not going to composition drm: mali-dp: Remove mclk rate management
2017-03-15Merge tag 'omapdrm-4.11-fixes' of ↵Dave Airlie
git://git.kernel.org/pub/scm/linux/kernel/git/tomba/linux into drm-fixes omapdrm fixes for v4.11 - Fix types in omapdrm uapi header to avoid userspace compilation errors - Fix dmabuf mmap for dma_alloc'ed buffers * tag 'omapdrm-4.11-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/tomba/linux: uapi: fix drm/omap_drm.h userspace compilation errors drm/omap: fix dmabuf mmap for dma_alloc'ed buffers
2017-03-15Merge tag 'tilcdc-4.11-fixes' of https://github.com/jsarha/linux into drm-fixesDave Airlie
drm/tilcdc fixes for Linux v4.11 * tag 'tilcdc-4.11-fixes' of https://github.com/jsarha/linux: drm/tilcdc: Set framebuffer DMA address to HW only if CRTC is enabled drm/tilcdc: Fix hardcoded fail-return value in tilcdc_crtc_create()
2017-03-14drm: amd: remove broken include pathArnd Bergmann
The AMD ACP driver adds "-I../acp -I../acp/include" to the gcc command line, which makes no sense, since these are evaluated relative to the build directory. When we build with "make W=1", they instead cause a warning: cc1: error: ../acp/: No such file or directory [-Werror=missing-include-dirs] cc1: error: ../acp/include: No such file or directory [-Werror=missing-include-dirs] cc1: all warnings being treated as errors ../scripts/Makefile.build:289: recipe for target 'drivers/gpu/drm/amd/amdgpu/amdgpu_drv.o' failed ../scripts/Makefile.build:289: recipe for target 'drivers/gpu/drm/amd/amdgpu/amdgpu_device.o' failed ../scripts/Makefile.build:289: recipe for target 'drivers/gpu/drm/amd/amdgpu/amdgpu_kms.o' failed This removes the subdir-ccflags variable that evidently did not serve any purpose here. Signed-off-by: Arnd Bergmann <arnd@arndb.de> Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2017-03-14Merge branch 'for-4.11-fixes' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/tj/cgroup Pull cgroup fixes from Tejun Heo: "Three cgroup fixes. Nothing critical: - the pids controller could trigger suspicious RCU warning spuriously. Fixed. - in the debug controller, %p -> %pK to protect kernel pointer from getting exposed. - documentation formatting fix" * 'for-4.11-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/tj/cgroup: cgroups: censor kernel pointer in debug files cgroup/pids: remove spurious suspicious RCU usage warning cgroup: Fix indenting in PID controller documentation
2017-03-14Merge branch 'for-4.11-fixes' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/tj/libata Pull libata fixes from Tejun Heo: "Three libata fixes: - fix for a circular reference bug in sysfs code which prevented pata_legacy devices from being released after probe failure, which in turn prevented devres from releasing the associated resources. - drop spurious WARN in the command issue path which can be triggered by a legitimate passthrough command. - an ahci_qoriq specific fix" * 'for-4.11-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/tj/libata: ahci: qoriq: correct the sata ecc setting error libata: drop WARN from protocol error in ata_sff_qc_issue() libata: transport: Remove circular dependency at free time
2017-03-14Merge branch 'for-4.11-fixes' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/tj/wq Pull workqueue fix from Tejun Heo: "If a delayed work is queued with NULL @wq, workqueue code explodes after the timer expires at which point it's difficult to tell who the culprit was. This actually happened and the offender was net/smc this time. Add an explicit sanity check for it in the queueing path" * 'for-4.11-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/tj/wq: workqueue: trigger WARN if queue_delayed_work() is called with NULL @wq
2017-03-14Merge branch 'for-4.11-fixes' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/tj/percpu Pull percpu fixes from Tejun Heo: - the allocation path was updating pcpu_nr_empty_pop_pages without the required locking which can lead to incorrect handling of empty chunks (e.g. keeping too many around), which is buggy but shouldn't lead to critical failures. Fixed by adding the locking - a trivial patch to drop an unused param from pcpu_get_pages() * 'for-4.11-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/tj/percpu: percpu: remove unused chunk_alloc parameter from pcpu_get_pages() percpu: acquire pcpu_lock when updating pcpu_nr_empty_pop_pages
2017-03-14x86/intel_rdt: Put group node in rdtgroup_kn_unlockJiri Olsa
The rdtgroup_kn_unlock waits for the last user to release and put its node. But it's calling kernfs_put on the node which calls the rdtgroup_kn_unlock, which might not be the group's directory node, but another group's file node. This race could be easily reproduced by running 2 instances of following script: mount -t resctrl resctrl /sys/fs/resctrl/ pushd /sys/fs/resctrl/ mkdir krava echo "krava" > krava/schemata rmdir krava popd umount /sys/fs/resctrl It triggers the slub debug error message with following command line config: slub_debug=,kernfs_node_cache. Call kernfs_put on the group's node to fix it. Fixes: 60cf5e101fd4 ("x86/intel_rdt: Add mkdir to resctrl file system") Signed-off-by: Jiri Olsa <jolsa@kernel.org> Cc: Fenghua Yu <fenghua.yu@intel.com> Cc: Peter Zijlstra <a.p.zijlstra@chello.nl> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Mike Galbraith <efault@gmx.de> Cc: Shaohua Li <shli@fb.com> Cc: stable@vger.kernel.org Link: http://lkml.kernel.org/r/1489501253-20248-1-git-send-email-jolsa@kernel.org Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
2017-03-14x86/unwind: Fix last frame check for aligned function stacksJosh Poimboeuf
Pavel Machek reported the following warning on x86-32: WARNING: kernel stack frame pointer at f50cdf98 in swapper/2:0 has bad value (null) The warning is caused by the unwinder not realizing that it reached the end of the stack, due to an unusual prologue which gcc sometimes generates for aligned stacks. The prologue is based on a gcc feature called the Dynamic Realign Argument Pointer (DRAP). It's almost always enabled for aligned stacks when -maccumulate-outgoing-args isn't set. This issue is similar to the one fixed by the following commit: 8023e0e2a48d ("x86/unwind: Adjust last frame check for aligned function stacks") ... but that fix was specific to x86-64. Make the fix more generic to cover x86-32 as well, and also ensure that the return address referred to by the frame pointer is a copy of the original return address. Fixes: acb4608ad186 ("x86/unwind: Create stack frames for saved syscall registers") Reported-by: Pavel Machek <pavel@ucw.cz> Signed-off-by: Josh Poimboeuf <jpoimboe@redhat.com> Cc: stable@vger.kernel.org Link: http://lkml.kernel.org/r/50d4924db716c264b14f1633037385ec80bf89d2.1489465609.git.jpoimboe@redhat.com Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
2017-03-14futex: Add missing error handling to FUTEX_REQUEUE_PIPeter Zijlstra
Thomas spotted that fixup_pi_state_owner() can return errors and we fail to unlock the rt_mutex in that case. Reported-by: Thomas Gleixner <tglx@linutronix.de> Signed-off-by: Peter Zijlstra (Intel) <peterz@infradead.org> Reviewed-by: Darren Hart <dvhart@linux.intel.com> Cc: juri.lelli@arm.com Cc: bigeasy@linutronix.de Cc: xlpang@redhat.com Cc: rostedt@goodmis.org Cc: mathieu.desnoyers@efficios.com Cc: jdesfossez@efficios.com Cc: dvhart@infradead.org Cc: bristot@redhat.com Cc: stable@vger.kernel.org Link: http://lkml.kernel.org/r/20170304093558.867401760@infradead.org Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
2017-03-14futex: Fix potential use-after-free in FUTEX_REQUEUE_PIPeter Zijlstra
While working on the futex code, I stumbled over this potential use-after-free scenario. Dmitry triggered it later with syzkaller. pi_mutex is a pointer into pi_state, which we drop the reference on in unqueue_me_pi(). So any access to that pointer after that is bad. Since other sites already do rt_mutex_unlock() with hb->lock held, see for example futex_lock_pi(), simply move the unlock before unqueue_me_pi(). Reported-by: Dmitry Vyukov <dvyukov@google.com> Signed-off-by: Peter Zijlstra (Intel) <peterz@infradead.org> Reviewed-by: Darren Hart <dvhart@linux.intel.com> Cc: juri.lelli@arm.com Cc: bigeasy@linutronix.de Cc: xlpang@redhat.com Cc: rostedt@goodmis.org Cc: mathieu.desnoyers@efficios.com Cc: jdesfossez@efficios.com Cc: dvhart@infradead.org Cc: bristot@redhat.com Cc: stable@vger.kernel.org Link: http://lkml.kernel.org/r/20170304093558.801744246@infradead.org Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
2017-03-14mm, x86: Fix native_pud_clear build errorArnd Bergmann
We still get a build error in random configurations, after this has been modified a few times: In file included from include/linux/mm.h:68:0, from include/linux/suspend.h:8, from arch/x86/kernel/asm-offsets.c:12: arch/x86/include/asm/pgtable.h:66:26: error: redefinition of 'native_pud_clear' #define pud_clear(pud) native_pud_clear(pud) My interpretation is that the build error comes from a typo in __PAGETABLE_PUD_FOLDED, so fix that typo now, and remove the incorrect #ifdef around the native_pud_clear definition. Fixes: 3e761a42e19c ("mm, x86: fix HIGHMEM64 && PARAVIRT build config for native_pud_clear()") Fixes: a00cc7d9dd93 ("mm, x86: add support for PUD-sized transparent hugepages") Signed-off-by: Arnd Bergmann <arnd@arndb.de> Acked-by: Dave Jiang <dave.jiang@intel.com> Cc: Kees Cook <keescook@chromium.org> Cc: Dave Hansen <dave.hansen@linux.intel.com> Cc: Hugh Dickins <hughd@google.com> Cc: Andrew Morton <akpm@linux-foundation.org> Cc: Borislav Petkov <bp@suse.de> Cc: Thomas Garnier <thgarnie@google.com> Link: http://lkml.kernel.org/r/20170314121330.182155-1-arnd@arndb.de Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
2017-03-14Merge branch 'qed-fixes'David S. Miller
Yuval Mintz says: ==================== qed: Fixes series This address several different issues in qed. The more significant portions: Patch #1 would cause timeout when qedr utilizes the highest CIDs availble for it [or when future qede adapters would utilize queues in some constellations]. Patch #4 fixes a leak of mapped addresses; When iommu is enabled, offloaded storage protocols might eventually run out of resources and fail to map additional buffers. Patches #6,#7 were missing in the initial iSCSI infrastructure submissions, and would hamper qedi's stability when it reaches out-of-order scenarios. ==================== Signed-off-by: David S. Miller <davem@davemloft.net>
2017-03-14qed: Enable iSCSI Out-of-OrderMintz, Yuval
Missing in the initial submission, qed fails to propagate qedi's request to enable OOO to firmware. Fixes: fc831825f99e ("qed: Add support for hardware offloaded iSCSI") Signed-off-by: Yuval Mintz <Yuval.Mintz@cavium.com> Signed-off-by: David S. Miller <davem@davemloft.net>