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2018-10-16ACPI/ADXL: Add address translation interface using an ACPI DSMTony Luck3-0/+198
Some new Intel servers provide an interface so that the OS can ask the BIOS to translate a system physical address to a memory address (socket, memory controller, channel, rank, dimm, etc.). This is useful for EDAC drivers that want to take the address of an error reported in a machine check bank and let the user know which DIMM may need to be replaced. Specification for this interface is available at: https://cdrdv2.intel.com/v1/dl/getContent/603354 [ Based on earlier code by Qiuxu Zhuo <qiuxu.zhuo@intel.com>. ] [ bp: Make the first pr_info() in adxl_init() pr_debug() so that it doesn't pollute every dmesg. ] Signed-off-by: Tony Luck <tony.luck@intel.com> Signed-off-by: Borislav Petkov <bp@suse.de> Acked-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com> Tested-by: Qiuxu Zhuo <qiuxu.zhuo@intel.com> CC: Len Brown <lenb@kernel.org> CC: linux-acpi@vger.kernel.org CC: linux-edac@vger.kernel.org Link: http://lkml.kernel.org/r/20181015202620.23610-1-tony.luck@intel.com
2018-10-13EDAC, thunderx: Fix memory leak in thunderx_l2c_threaded_isr()Dan Carpenter1-2/+2
Fix memory leak in L2c threaded interrupt handler. [ bp: Rewrite commit message. ] Fixes: 41003396f932 ("EDAC, thunderx: Add Cavium ThunderX EDAC driver") Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com> Signed-off-by: Borislav Petkov <bp@suse.de> CC: David Daney <david.daney@cavium.com> CC: Jan Glauber <jglauber@cavium.com> CC: Mauro Carvalho Chehab <mchehab@kernel.org> CC: Sergey Temerkhanov <s.temerkhanov@gmail.com> CC: linux-edac <linux-edac@vger.kernel.org> Link: http://lkml.kernel.org/r/20181013102843.GG16086@mwanda
2018-10-09EDAC, skx_edac: Fix logical channel intermediate decodingQiuxu Zhuo1-1/+1
The code "lchan = (lchan << 1) | ~lchan" for logical channel intermediate decoding is wrong. The wrong intermediate decoding result is {0xffffffff, 0xfffffffe}. Fix it by replacing '~' with '!'. The correct intermediate decoding result is {0x1, 0x2}. Signed-off-by: Qiuxu Zhuo <qiuxu.zhuo@intel.com> Signed-off-by: Tony Luck <tony.luck@intel.com> Signed-off-by: Borislav Petkov <bp@suse.de> CC: Aristeu Rozanski <aris@redhat.com> CC: Mauro Carvalho Chehab <mchehab@kernel.org> CC: linux-edac <linux-edac@vger.kernel.org> Cc: stable@vger.kernel.org Link: http://lkml.kernel.org/r/20181009172025.18594-1-tony.luck@intel.com
2018-09-29EDAC, {i7core,sb,skx}_edac: Fix uncorrected error countingTony Luck3-0/+3
The count of errors is picked up from bits 52:38 of the machine check bank status register. But this is the count of *corrected* errors. If an uncorrected error is being logged, the h/w sets this field to 0. Which means that when edac_mc_handle_error() is called, the EDAC core will carefully add zero to the appropriate uncorrected error counts. Signed-off-by: Tony Luck <tony.luck@intel.com> [ Massage commit message. ] Signed-off-by: Borislav Petkov <bp@suse.de> Cc: stable@vger.kernel.org Cc: Aristeu Rozanski <aris@redhat.com> Cc: Mauro Carvalho Chehab <mchehab@kernel.org> Cc: Qiuxu Zhuo <qiuxu.zhuo@intel.com> Cc: linux-edac <linux-edac@vger.kernel.org> Link: http://lkml.kernel.org/r/20180928213934.19890-1-tony.luck@intel.com
2018-09-28EDAC, altera: Work around int-to-pointer-cast warningsArnd Bergmann1-6/+7
The altera edac driver passes a token from a DT resource as resource_size_t into an SMC call, but casts it to an __iomem pointer and then a plain void pointer inbetween, mixing three or four incompatible types in the process. The compiler complains about one of the conversions: drivers/edac/altera_edac.c: In function 'altr_init_a10_ecc_block': drivers/edac/altera_edac.c:1053:10: error: cast to pointer from integer of \ different size [-Werror=int-to-pointer-cast] base = (void __iomem *)res.start; ^ drivers/edac/altera_edac.c: In function 'altr_edac_a10_probe': drivers/edac/altera_edac.c:2062:10: error: cast to pointer from integer of \ different size [-Werror=int-to-pointer-cast] base = (void __iomem *)res.start; Using a static checker probably also notices the __iomem cast. Solving this properly isn't trivial, but simply casting to a 'uintptr_t' instead of 'void __iomem *' makes it less wrong and should avoid the warnings. Fixes: d5fc9125566c ("EDAC, altera: Combine Stratix10 and Arria10 probe functions") Signed-off-by: Arnd Bergmann <arnd@arndb.de> Signed-off-by: Borislav Petkov <bp@suse.de> Reviewed-by: Thor Thayer <thor.thayer@linux.intel.com> Cc: Mauro Carvalho Chehab <mchehab@kernel.org> Cc: David Frey <dpfrey@gmail.com> Cc: Mark Rutland <mark.rutland@arm.com> Cc: Ingo Molnar <mingo@kernel.org> Cc: Christophe JAILLET <christophe.jaillet@wanadoo.fr> Cc: linux-edac@vger.kernel.org Link: https://lkml.kernel.org/r/20180927100949.973078-1-arnd@arndb.de
2018-09-27EDAC, amd64: Add Hygon Dhyana supportPu Wen2-2/+12
Add support for Hygon Dhyana CPU to EDAC. Signed-off-by: Pu Wen <puwen@hygon.cn> Signed-off-by: Borislav Petkov <bp@suse.de> Cc: mchehab@kernel.org Cc: tglx@linutronix.de Cc: mingo@redhat.com Cc: hpa@zytor.com Cc: thomas.lendacky@amd.com Cc: linux-edac@vger.kernel.org Link: https://lkml.kernel.org/r/9d71061301177822bc55b3bfd44f91057458d886.1537533369.git.puwen@hygon.cn
2018-09-27Merge branch 'tip-x86-hygon' into edac-for-4.20Borislav Petkov367-2501/+4134
... to pick up a dependent commit and share it with the tip tree, branch tip:x86/cpu. Signed-off-by: Borislav Petkov <bp@suse.de>
2018-09-25EDAC, altera: Add Stratix10 peripheral supportThor Thayer2-11/+143
Add a new peripheral ECC error injection algorithm for Stratix10 and some Arria10 peripherals. Inject a single bit error and upon readback, it will be corrected and the SBE IRQ handler will be called. Add regmap selection for Stratix10 or Arria10 peripheral device memory initialization. Add checks for both Arria10 and Stratix10 to the peripheral ECC setup. Signed-off-by: Thor Thayer <thor.thayer@linux.intel.com> Signed-off-by: Borislav Petkov <bp@suse.de> Cc: dinguyen@kernel.org Cc: robh+dt@kernel.org Cc: mark.rutland@arm.com Cc: mchehab@kernel.org Cc: devicetree@vger.kernel.org Cc: linux-edac@vger.kernel.org Link: https://lkml.kernel.org/r/1537883342-30180-6-git-send-email-thor.thayer@linux.intel.com
2018-09-25EDAC, altera: Merge Stratix10 into the Arria10 SDRAM probe routineThor Thayer2-300/+14
Change Stratix10 regmap to use offsets from a base to match the Arria10 regmap and allow re-use of the Arria10 functions. Only the regmap initialization differs (Arria10 mmio_regmap vs Stratix10 custom regmap). Modify the SDRAM probe function to handle Stratix10. Remove the Stratix10 offset defines if Arria10 can be used. Remove the unused Stratix10 probe function. Signed-off-by: Thor Thayer <thor.thayer@linux.intel.com> Signed-off-by: Borislav Petkov <bp@suse.de> Cc: dinguyen@kernel.org Cc: robh+dt@kernel.org Cc: mark.rutland@arm.com Cc: mchehab@kernel.org Cc: devicetree@vger.kernel.org Cc: linux-edac@vger.kernel.org Link: https://lkml.kernel.org/r/1537883342-30180-5-git-send-email-thor.thayer@linux.intel.com
2018-09-25EDAC, altera: Combine Stratix10 and Arria10 probe functionsThor Thayer2-183/+90
On Stratix10, the ECC offsets are similar to the existing Arria10 functions and this can be leveraged to simplify the EDAC driver as follows: 1. Fold Stratix10 specifics into Arria10 structures and functions. 2. Implement the Stratix10 System Manager register accesses using a custom regmap to allow use with the Arria10 System Manager regmaps. 3. Stratix10 double bit errors are implemented as SError instead of interrupts so use a panic notifier. Signed-off-by: Thor Thayer <thor.thayer@linux.intel.com> Signed-off-by: Borislav Petkov <bp@suse.de> Cc: dinguyen@kernel.org Cc: robh+dt@kernel.org Cc: mark.rutland@arm.com Cc: mchehab@kernel.org Cc: devicetree@vger.kernel.org Cc: linux-edac@vger.kernel.org Link: https://lkml.kernel.org/r/1537883342-30180-3-git-send-email-thor.thayer@linux.intel.com
2018-09-25EDAC, i7core: Remove set but not used variable pvtYueHaibing1-2/+0
Remove the unused local variable pvt: drivers/edac/i7core_edac.c: In function 'i7core_mce_check_error': drivers/edac/i7core_edac.c:1818:21: warning: variable 'pvt' set but not used \ [-Wunused-but-set-variable] Signed-off-by: YueHaibing <yuehaibing@huawei.com> Signed-off-by: Borislav Petkov <bp@suse.de> Cc: Mauro Carvalho Chehab <mchehab@kernel.org> Cc: linux-edac <linux-edac@vger.kernel.org> Link: http://lkml.kernel.org/r/1537841043-108267-1-git-send-email-yuehaibing@huawei.com
2018-09-22EDAC, ghes: Use CPER module handles to locate DIMMsFan Wu1-0/+23
Use SMBIOS module handle type 17, on platforms which provide valid ones, to locate the corresponding DIMM and thus have per-DIMM error counter updates. Signed-off-by: Fan Wu <wufan@codeaurora.org> [ Massage commit message. ] Signed-off-by: Borislav Petkov <bp@suse.de> Reviewed-by: Tyler Baicar <baicar.tyler@gmail.com> Reviewed-by: James Morse <james.morse@arm.com> Tested-by: Toshi Kani <toshi.kani@hpe.com> Cc: Mauro Carvalho Chehab <mchehab@kernel.org> Cc: baicar.tyler@gmail.com Cc: john.garry@huawei.com Cc: linux-arm-kernel@lists.infradead.org Cc: linux-edac <linux-edac@vger.kernel.org> Cc: shiju.jose@huawei.com Cc: tanxiaofei@huawei.com Cc: wanghuiqiang@huawei.com Link: http://lkml.kernel.org/r/1537322340-1860-1-git-send-email-wufan@codeaurora.org
2018-09-22EDAC: Correct DIMM capacity unit symbolQiuxu Zhuo4-5/+5
The {i3200|i7core|sb|skx}_edac drivers show DIMM capacity using the wrong unit symbol: 'Mb' - megabit. Fix them by replacing 'Mb' with 'MiB' - mebibyte. [Tony: These are all "edac_dbg()" messages, so this won't break scripts that parse console logs.] Signed-off-by: Qiuxu Zhuo <qiuxu.zhuo@intel.com> Signed-off-by: Tony Luck <tony.luck@intel.com> Signed-off-by: Borislav Petkov <bp@suse.de> Acked-by: Aristeu Rozanski <aris@redhat.com> Cc: Mauro Carvalho Chehab <mchehab@kernel.org> Cc: linux-edac@vger.kernel.org Link: https://lkml.kernel.org/r/20180919003433.16475-1-tony.luck@intel.com
2018-09-15EDAC, sb_edac: Fix signedness bugs in *_get_ha() functionsLuck, Tony1-2/+2
A static checker gave the following warnings: drivers/edac/sb_edac.c:1030 ibridge_get_ha() warn: signedness bug returning '(-22)' drivers/edac/sb_edac.c:1037 knl_get_ha() warn: signedness bug returning '(-22)' Both because the functions are declared to return a "u8", but try to return -EINVAL for the error case. Fix by returning 0xff (since the caller doesn't look at, or pass on, the return value). Reported-by: Dan Carpenter <dan.carpenter@oracle.com> Signed-off-by: Tony Luck <tony.luck@intel.com> Cc: Qiuxu Zhuo <qiuxu.zhuo@intel.com> Cc: linux-edac <linux-edac@vger.kernel.org> Link: http://lkml.kernel.org/r/20180914201905.GA30946@agluck-desk Signed-off-by: Borislav Petkov <bp@suse.de>
2018-09-14Merge tag 'devicetree-fixes-for-4.19-2' of ↵Linus Torvalds1-0/+3
git://git.kernel.org/pub/scm/linux/kernel/git/robh/linux Pull DeviceTree fix from Rob Herring: "One regression for a 20 year old PowerMac: - Fix a regression on systems having a DT without any phandles which happens on a PowerMac G3" * tag 'devicetree-fixes-for-4.19-2' of git://git.kernel.org/pub/scm/linux/kernel/git/robh/linux: of: fix phandle cache creation for DTs with no phandles
2018-09-14Merge tag 'for-linus-4.19c-rc4-tag' of ↵Linus Torvalds7-24/+42
git://git.kernel.org/pub/scm/linux/kernel/git/xen/tip Pull xen fixes from Juergen Gross: "This contains some minor cleanups and fixes: - a new knob for controlling scrubbing of pages returned by the Xen balloon driver to the Xen hypervisor to address a boot performance issue seen in large guests booted pre-ballooned - a fix of a regression in the gntdev driver which made it impossible to use fully virtualized guests (HVM guests) with a 4.19 based dom0 - a fix in Xen cpu hotplug functionality which could be triggered by wrong admin commands (setting number of active vcpus to 0) One further note: the patches have all been under test for several days in another branch. This branch has been rebased in order to avoid merge conflicts" * tag 'for-linus-4.19c-rc4-tag' of git://git.kernel.org/pub/scm/linux/kernel/git/xen/tip: xen/gntdev: fix up blockable calls to mn_invl_range_start xen: fix GCC warning and remove duplicate EVTCHN_ROW/EVTCHN_COL usage xen: avoid crash in disable_hotplug_cpu xen/balloon: add runtime control for scrubbing ballooned out pages xen/manage: don't complain about an empty value in control/sysrq node
2018-09-14Merge tag 'dmaengine-fix-4.19-rc4' of ↵Linus Torvalds1-3/+1
git://git.infradead.org/users/vkoul/slave-dma Pull dmaengine fix from Vinod Koul: "Fix the mic_x100_dma driver to use devm_kzalloc for driver memory, so that it is freed properly when it unregisters from dmaengine using managed API" * tag 'dmaengine-fix-4.19-rc4' of git://git.infradead.org/users/vkoul/slave-dma: dmaengine: mic_x100_dma: use devm_kzalloc to fix an issue
2018-09-14Merge tag 'usb-4.19-rc4' of ↵Linus Torvalds30-145/+188
git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb Pull USB fixes from Greg KH: "Here are a number of small USB driver fixes for -rc4. The usual suspects of gadget, xhci, and dwc2/3 are in here, along with some reverts of reported problem changes, and a number of build documentation warning fixes. Full details are in the shortlog. All of these have been in linux-next with no reported issues" * tag 'usb-4.19-rc4' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb: (28 commits) Revert "cdc-acm: implement put_char() and flush_chars()" usb: Change usb_of_get_companion_dev() place to usb/common usb: xhci: fix interrupt transfer error happened on MTK platforms usb: cdc-wdm: Fix a sleep-in-atomic-context bug in service_outstanding_interrupt() usb: misc: uss720: Fix two sleep-in-atomic-context bugs usb: host: u132-hcd: Fix a sleep-in-atomic-context bug in u132_get_frame() usb: Avoid use-after-free by flushing endpoints early in usb_set_interface() linux/mod_devicetable.h: fix kernel-doc missing notation for typec_device_id usb/typec: fix kernel-doc notation warning for typec_match_altmode usb: Don't die twice if PCI xhci host is not responding in resume usb: mtu3: fix error of xhci port id when enable U3 dual role usb: uas: add support for more quirk flags USB: Add quirk to support DJI CineSSD usb: typec: fix kernel-doc parameter warning usb/dwc3/gadget: fix kernel-doc parameter warning USB: yurex: Check for truncation in yurex_read() USB: yurex: Fix buffer over-read in yurex_write() usb: host: xhci-plat: Iterate over parent nodes for finding quirks xhci: Fix use after free for URB cancellation on a reallocated endpoint USB: add quirk for WORLDE Controller KS49 or Prodipe MIDI 49C USB controller ...
2018-09-14Merge tag 'tty-4.19-rc4' of ↵Linus Torvalds1-5/+33
git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/tty Pull tty fixes from Greg KH: "Here are three small HVC tty driver fixes to resolve a reported regression from 4.19-rc1. All of these have been in linux-next for a while with no reported issues" * tag 'tty-4.19-rc4' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/tty: tty: hvc: hvc_write() fix break condition tty: hvc: hvc_poll() fix read loop batching tty: hvc: hvc_poll() fix read loop hang
2018-09-14Merge tag 'staging-4.19-rc4' of ↵Linus Torvalds13-19/+54
git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/staging Pull staging/IIO driver fixes from Greg KH: "Here are a few small staging and iio driver fixes for -rc4. Nothing major, just a few small bugfixes for some reported issues, and a MAINTAINERS file update for the fbtft drivers. We also re-enable the building of the erofs filesystem as the XArray patches that were causing it to break never got merged in the -rc1 cycle, so there's no reason it can't be turned back on for now. The problem that was previously there is now being handled in the Xarray tree at the moment, so it will not hit us again in the future. All of these patches have been in linux-next with no reported issues" * tag 'staging-4.19-rc4' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/staging: staging: vboxvideo: Change address of scanout buffer on page-flip staging: vboxvideo: Fix IRQs no longer working staging: gasket: TODO: re-implement using UIO staging/fbtft: Update TODO and mailing lists staging: erofs: rename superblock flags (MS_xyz -> SB_xyz) iio: imu: st_lsm6dsx: take into account ts samples in wm configuration Revert "iio: temperature: maxim_thermocouple: add MAX31856 part" Revert "staging: erofs: disable compiling temporarile" MAINTAINERS: Switch a maintainer for drivers/staging/gasket staging: wilc1000: revert "fix TODO to compile spi and sdio components in single module"
2018-09-14Merge tag 'char-misc-4.19-rc4' of ↵Linus Torvalds9-33/+72
git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/char-misc Pull char/misc driver fixes from Greg KH: "Here are a small handful of char/misc driver fixes for 4.19-rc4. All of them are simple, resolving reported problems in a few drivers. Full details are in the shortlog. All of these have been in linux-next with no reported issues" * tag 'char-misc-4.19-rc4' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/char-misc: firmware: Fix security issue with request_firmware_into_buf() vmbus: don't return values for uninitalized channels fpga: dfl: fme: fix return value check in in pr_mgmt_init() misc: hmc6352: fix potential Spectre v1 Tools: hv: Fix a bug in the key delete code misc: ibmvsm: Fix wrong assignment of return code android: binder: fix the race mmap and alloc_new_buf_locked mei: bus: need to unlink client before freeing mei: bus: fix hw module get/put balance mei: fix use-after-free in mei_cl_write mei: ignore not found client in the enumeration
2018-09-14xen/gntdev: fix up blockable calls to mn_invl_range_startMichal Hocko1-11/+15
Patch series "mmu_notifiers follow ups". Tetsuo has noticed some fallouts from 93065ac753e4 ("mm, oom: distinguish blockable mode for mmu notifiers"). One of them has been fixed and picked up by AMD/DRM maintainer [1]. XEN issue is fixed by patch 1. I have also clarified expectations about blockable semantic of invalidate_range_end. Finally the last patch removes MMU_INVALIDATE_DOES_NOT_BLOCK which is no longer used nor needed. [1] http://lkml.kernel.org/r/20180824135257.GU29735@dhcp22.suse.cz This patch (of 3): 93065ac753e4 ("mm, oom: distinguish blockable mode for mmu notifiers") has introduced blockable parameter to all mmu_notifiers and the notifier has to back off when called in !blockable case and it could block down the road. The above commit implemented that for mn_invl_range_start but both in_range checks are done unconditionally regardless of the blockable mode and as such they would fail all the time for regular calls. Fix this by checking blockable parameter as well. Once we are there we can remove the stale TODO. The lock has to be sleepable because we wait for completion down in gnttab_unmap_refs_sync. Link: http://lkml.kernel.org/r/20180827112623.8992-2-mhocko@kernel.org Fixes: 93065ac753e4 ("mm, oom: distinguish blockable mode for mmu notifiers") Signed-off-by: Michal Hocko <mhocko@suse.com> Cc: Boris Ostrovsky <boris.ostrovsky@oracle.com> Cc: Juergen Gross <jgross@suse.com> Cc: David Rientjes <rientjes@google.com> Cc: Jerome Glisse <jglisse@redhat.com> Cc: Tetsuo Handa <penguin-kernel@I-love.SAKURA.ne.jp> Reviewed-by: Juergen Gross <jgross@suse.com> Signed-off-by: Boris Ostrovsky <boris.ostrovsky@oracle.com>
2018-09-14xen: fix GCC warning and remove duplicate EVTCHN_ROW/EVTCHN_COL usageJosh Abraham1-1/+1
This patch removes duplicate macro useage in events_base.c. It also fixes gcc warning: variable ‘col’ set but not used [-Wunused-but-set-variable] Signed-off-by: Joshua Abraham <j.abraham1776@gmail.com> Reviewed-by: Juergen Gross <jgross@suse.com> Signed-off-by: Boris Ostrovsky <boris.ostrovsky@oracle.com>
2018-09-14xen: avoid crash in disable_hotplug_cpuOlaf Hering1-7/+8
The command 'xl vcpu-set 0 0', issued in dom0, will crash dom0: BUG: unable to handle kernel NULL pointer dereference at 00000000000002d8 PGD 0 P4D 0 Oops: 0000 [#1] PREEMPT SMP NOPTI CPU: 7 PID: 65 Comm: xenwatch Not tainted 4.19.0-rc2-1.ga9462db-default #1 openSUSE Tumbleweed (unreleased) Hardware name: Intel Corporation S5520UR/S5520UR, BIOS S5500.86B.01.00.0050.050620101605 05/06/2010 RIP: e030:device_offline+0x9/0xb0 Code: 77 24 00 e9 ce fe ff ff 48 8b 13 e9 68 ff ff ff 48 8b 13 e9 29 ff ff ff 48 8b 13 e9 ea fe ff ff 90 66 66 66 66 90 41 54 55 53 <f6> 87 d8 02 00 00 01 0f 85 88 00 00 00 48 c7 c2 20 09 60 81 31 f6 RSP: e02b:ffffc90040f27e80 EFLAGS: 00010203 RAX: 0000000000000000 RBX: 0000000000000000 RCX: 0000000000000000 RDX: ffff8801f3800000 RSI: ffffc90040f27e70 RDI: 0000000000000000 RBP: 0000000000000000 R08: ffffffff820e47b3 R09: 0000000000000000 R10: 0000000000007ff0 R11: 0000000000000000 R12: ffffffff822e6d30 R13: dead000000000200 R14: dead000000000100 R15: ffffffff8158b4e0 FS: 00007ffa595158c0(0000) GS:ffff8801f39c0000(0000) knlGS:0000000000000000 CS: e033 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00000000000002d8 CR3: 00000001d9602000 CR4: 0000000000002660 Call Trace: handle_vcpu_hotplug_event+0xb5/0xc0 xenwatch_thread+0x80/0x140 ? wait_woken+0x80/0x80 kthread+0x112/0x130 ? kthread_create_worker_on_cpu+0x40/0x40 ret_from_fork+0x3a/0x50 This happens because handle_vcpu_hotplug_event is called twice. In the first iteration cpu_present is still true, in the second iteration cpu_present is false which causes get_cpu_device to return NULL. In case of cpu#0, cpu_online is apparently always true. Fix this crash by checking if the cpu can be hotplugged, which is false for a cpu that was just removed. Also check if the cpu was actually offlined by device_remove, otherwise leave the cpu_present state as it is. Rearrange to code to do all work with device_hotplug_lock held. Signed-off-by: Olaf Hering <olaf@aepfle.de> Reviewed-by: Juergen Gross <jgross@suse.com> Signed-off-by: Boris Ostrovsky <boris.ostrovsky@oracle.com>
2018-09-14xen/balloon: add runtime control for scrubbing ballooned out pagesMarek Marczykowski-Górecki3-3/+14
Scrubbing pages on initial balloon down can take some time, especially in nested virtualization case (nested EPT is slow). When HVM/PVH guest is started with memory= significantly lower than maxmem=, all the extra pages will be scrubbed before returning to Xen. But since most of them weren't used at all at that point, Xen needs to populate them first (from populate-on-demand pool). In nested virt case (Xen inside KVM) this slows down the guest boot by 15-30s with just 1.5GB needed to be returned to Xen. Add runtime parameter to enable/disable it, to allow initially disabling scrubbing, then enable it back during boot (for example in initramfs). Such usage relies on assumption that a) most pages ballooned out during initial boot weren't used at all, and b) even if they were, very few secrets are in the guest at that time (before any serious userspace kicks in). Convert CONFIG_XEN_SCRUB_PAGES to CONFIG_XEN_SCRUB_PAGES_DEFAULT (also enabled by default), controlling default value for the new runtime switch. Signed-off-by: Marek Marczykowski-Górecki <marmarek@invisiblethingslab.com> Reviewed-by: Juergen Gross <jgross@suse.com> Signed-off-by: Boris Ostrovsky <boris.ostrovsky@oracle.com>
2018-09-14xen/manage: don't complain about an empty value in control/sysrq nodeVitaly Kuznetsov1-2/+4
When guest receives a sysrq request from the host it acknowledges it by writing '\0' to control/sysrq xenstore node. This, however, make xenstore watch fire again but xenbus_scanf() fails to parse empty value with "%c" format string: sysrq: SysRq : Emergency Sync Emergency Sync complete xen:manage: Error -34 reading sysrq code in control/sysrq Ignore -ERANGE the same way we already ignore -ENOENT, empty value in control/sysrq is totally legal. Signed-off-by: Vitaly Kuznetsov <vkuznets@redhat.com> Reviewed-by: Wei Liu <wei.liu2@citrix.com> Signed-off-by: Boris Ostrovsky <boris.ostrovsky@oracle.com>
2018-09-13Merge tag 'for-linus-20180913' of git://git.kernel.dk/linux-blockLinus Torvalds4-36/+87
Pull block fixes from Jens Axboe: "Three fixes that should go into this series. This contains: - Increase number of policies supported by blk-cgroup. With blk-iolatency, we now have four in kernel, but we had a hard limit of three... - Fix regression in null_blk, where the zoned supported broke queue_mode=0 (bio based). - NVMe pull request, with a single fix for an issue in the rdma code" * tag 'for-linus-20180913' of git://git.kernel.dk/linux-block: null_blk: fix zoned support for non-rq based operation blk-cgroup: increase number of supported policies nvmet-rdma: fix possible bogus dereference under heavy load
2018-09-13Merge tag 'for-4.19/dm-fixes' of ↵Linus Torvalds6-113/+188
git://git.kernel.org/pub/scm/linux/kernel/git/device-mapper/linux-dm Pull device mapper fixes from Mike Snitzer: - DM verity fix for crash due to using vmalloc'd buffers with the asynchronous crypto hadsh API. - Fix to both DM crypt and DM integrity targets to discontinue using CRYPTO_TFM_REQ_MAY_SLEEP because its use of GFP_KERNEL can lead to deadlock by recursing back into a filesystem. - Various DM raid fixes related to reshape and rebuild races. - Fix for DM thin-provisioning to avoid data corruption that was a side-effect of needing to abort DM thin metadata transaction due to running out of metadata space. Fix is to reserve a small amount of metadata space so that once it is used the DM thin-pool can finish its active transaction before switching to read-only mode. * tag 'for-4.19/dm-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/device-mapper/linux-dm: dm thin metadata: try to avoid ever aborting transactions dm raid: bump target version, update comments and documentation dm raid: fix RAID leg rebuild errors dm raid: fix rebuild of specific devices by updating superblock dm raid: fix stripe adding reshape deadlock dm raid: fix reshape race on small devices dm: disable CRYPTO_TFM_REQ_MAY_SLEEP to fix a GFP_KERNEL recursion deadlock dm verity: fix crash on bufio buffer that was allocated with vmalloc
2018-09-13Merge tag 'drm-fixes-2018-09-14' of git://anongit.freedesktop.org/drm/drmLinus Torvalds8-190/+131
Pull drm fixes from Dave Airlie: "This is the general drm fixes pull for rc4. i915: - Two GVT fixes (one for the mm reference issue you pointed out) - Gen 2 video playback fix - IPS timeout error suppression on Broadwell amdgpu: - Small memory leak - SR-IOV reset - locking fix - updated SDMA golden registers nouveau: - Remove some leftover debugging" * tag 'drm-fixes-2018-09-14' of git://anongit.freedesktop.org/drm/drm: drm/nouveau/devinit: fix warning when PMU/PRE_OS is missing drm/amdgpu: fix error handling in amdgpu_cs_user_fence_chunk drm/i915/overlay: Allocate physical registers from stolen drm/amdgpu: move PSP init prior to IH in gpu reset drm/amdgpu: Fix SDMA hang in prt mode v2 drm/amdgpu: fix amdgpu_mn_unlock() in the CS error path drm/i915/bdw: Increase IPS disable timeout to 100ms drm/i915/gvt: Fix the incorrect length of child_device_config issue drm/i915/gvt: Fix life cycle reference on KVM mm
2018-09-13Merge tag 'mmc-v4.19-rc2' of ↵Linus Torvalds2-2/+7
git://git.kernel.org/pub/scm/linux/kernel/git/ulfh/mmc Pull MMC host fixes from Ulf Hansson: - meson-mx-sdio: Fix OF child-node lookup - omap_hsmmc: Fix wakeirq handling on removal * tag 'mmc-v4.19-rc2' of git://git.kernel.org/pub/scm/linux/kernel/git/ulfh/mmc: mmc: meson-mx-sdio: fix OF child-node lookup mmc: omap_hsmmc: fix wakeirq handling on removal
2018-09-13Merge tag 'pinctrl-v4.19-2' of ↵Linus Torvalds3-3/+27
git://git.kernel.org/pub/scm/linux/kernel/git/linusw/linux-pinctrl Pull pin control fixes from Linus Walleij: - A complicated IRQ fix for the MSM driver (see commit) - Fix the group/function check in the Ingenic driver - Deal with a possible NULL pointer dereference in the Madera driver * tag 'pinctrl-v4.19-2' of git://git.kernel.org/pub/scm/linux/kernel/git/linusw/linux-pinctrl: pinctrl: madera: Fix possible NULL pointer with pdata config pinctrl: ingenic: Fix group & function error checking pinctrl: msm: Really mask level interrupts to prevent latching
2018-09-13Merge tag 's390-4.19-3' of ↵Linus Torvalds1-53/+33
git://git.kernel.org/pub/scm/linux/kernel/git/s390/linux Pull s390 fixes from Martin Schwidefsky: - One fix for the zcrypt driver to correctly handle incomplete encryption/decryption operations. - A cleanup for the aqmask/apmask parsing to avoid variable length arrays on the stack. * tag 's390-4.19-3' of git://git.kernel.org/pub/scm/linux/kernel/git/s390/linux: s390/zcrypt: remove VLA usage from the AP bus s390/crypto: Fix return code checking in cbc_paes_crypt()
2018-09-14Merge branch 'linux-4.19' of git://github.com/skeggsb/linux into drm-fixesDave Airlie1-10/+11
One more nouveau fix to remove some debug warnings. Signed-off-by: Dave Airlie <airlied@redhat.com> From: Ben Skeggs <bskeggs@redhat.com> Link: https://patchwork.freedesktop.org/patch/msgid/CABDvA==GF63dy8a9j611=-0x8G6FRu7uC-ZQypsLO_hqV4OAcA@mail.gmail.com
2018-09-14Merge branch 'drm-fixes-4.19' of git://people.freedesktop.org/~agd5f/linux ↵Dave Airlie3-12/+22
into drm-fixes A few fixes for 4.19: - Fix a small memory leak - SR-IOV reset fix - Fix locking in MMU-notifier error path - Updated SDMA golden settings to fix a PRT hang Signed-off-by: Dave Airlie <airlied@redhat.com> From: Alex Deucher <alexdeucher@gmail.com> Link: https://patchwork.freedesktop.org/patch/msgid/20180912154735.2683-1-alexander.deucher@amd.com
2018-09-14Merge tag 'drm-intel-fixes-2018-09-11' of ↵Dave Airlie4-168/+98
git://anongit.freedesktop.org/drm/drm-intel into drm-fixes This contains a regression fix for video playbacks on gen 2 hardware, a IPS timeout error suppression on Broadwell and GVT bucked with "Most critical one is to fix KVM's mm reference when we access guest memory, issue was raised by Linus [1], and another one with virtual opregion fix." [1] - https://lists.freedesktop.org/archives/intel-gvt-dev/2018-August/004130.html Signed-off-by: Dave Airlie <airlied@redhat.com> From: Rodrigo Vivi <rodrigo.vivi@intel.com> Link: https://patchwork.freedesktop.org/patch/msgid/20180911223229.GA30328@intel.com
2018-09-12Merge tag 'pci-v4.19-fixes-1' of ↵Linus Torvalds6-24/+23
git://git.kernel.org/pub/scm/linux/kernel/git/helgaas/pci Pull PCI fixes from Bjorn Helgaas: - Add Tyrel Datwyler as maintainer for PPC64 RPA hotplug (Tyrel Datwyler) - Add Gustavo Pimentel as DesignWare PCI maintainer (Joao Pinto) - Fix a Switchtec Spectre v1 vulnerability (Gustavo A. R. Silva) - Revert an unnecessary Intel 300 ACS quirk (Mika Westerberg) - Fix pciehp hot-add/powerfault detection that left indicators in wrong state (Keith Busch) - Fix pci_reset_bus() logic error (Dennis Dalessandro) - Revert IB/hfi1 PCI reset change that caused a deadlock (Dennis Dalessandro) - Allow enabling PASID on Root Complex Integrated Endpoints (Felix Kuehling) * tag 'pci-v4.19-fixes-1' of git://git.kernel.org/pub/scm/linux/kernel/git/helgaas/pci: PCI: Fix enabling of PASID on RC integrated endpoints IB/hfi1,PCI: Allow bus reset while probing PCI: Fix faulty logic in pci_reset_bus() PCI: pciehp: Fix hot-add vs powerfault detection order switchtec: Fix Spectre v1 vulnerability Revert "PCI: Add ACS quirk for Intel 300 series" MAINTAINERS: Add Gustavo Pimentel as DesignWare PCI maintainer MAINTAINERS: Add entries for PPC64 RPA PCI hotplug drivers
2018-09-12Merge tag 'for-linus-4.19' of git://github.com/cminyard/linux-ipmiLinus Torvalds5-104/+97
Pull IPMI bugfixes from Corey Minyard: "A few fixes that came around or after the merge window, except for commit cd2315d471f4 ("ipmi: kcs_bmc: don't change device name") which is for a driver that very few people use, and those people need the change" * tag 'for-linus-4.19' of git://github.com/cminyard/linux-ipmi: ipmi: Fix NULL pointer dereference in ssif_probe ipmi: Fix I2C client removal in the SSIF driver ipmi: Move BT capabilities detection to the detect call ipmi: Rework SMI registration failure ipmi: kcs_bmc: don't change device name
2018-09-12Merge tag 'drm-fixes-2018-09-12' of git://anongit.freedesktop.org/drm/drmLinus Torvalds16-114/+297
Pull drm nouveau fixes from Dave Airlie: "I'm sending this separately as it's a bit larger than I generally like for one driver, but it does contain a bunch of make my nvidia laptop not die (runpm) and a bunch to make my docking station and monitor display stuff (mst) fixes. Lyude has spent a lot of time on these, and we are putting the fixes into distro kernels as well asap, as it helps a bunch of standard Lenovo laptops, so I'm fairly happy things are better than they were before these patches, but I decided to split them out just for clarification" * tag 'drm-fixes-2018-09-12' of git://anongit.freedesktop.org/drm/drm: drm/nouveau/disp/gm200-: enforce identity-mapped SOR assignment for LVDS/eDP panels drm/nouveau/disp: fix DP disable race drm/nouveau/disp: move eDP panel power handling drm/nouveau/disp: remove unused struct member drm/nouveau/TBDdevinit: don't fail when PMU/PRE_OS is missing from VBIOS drm/nouveau/mmu: don't attempt to dereference vmm without valid instance pointer drm/nouveau: fix oops in client init failure path drm/nouveau: Fix nouveau_connector_ddc_detect() drm/nouveau/drm/nouveau: Don't forget to cancel hpd_work on suspend/unload drm/nouveau/drm/nouveau: Prevent handling ACPI HPD events too early drm/nouveau: Reset MST branching unit before enabling drm/nouveau: Only write DP_MSTM_CTRL when needed drm/nouveau: Remove useless poll_enable() call in drm_load() drm/nouveau: Remove useless poll_disable() call in switcheroo_set_state() drm/nouveau: Remove useless poll_enable() call in switcheroo_set_state() drm/nouveau: Fix deadlocks in nouveau_connector_detect() drm/nouveau/drm/nouveau: Use pm_runtime_get_noresume() in connector_detect() drm/nouveau/drm/nouveau: Fix deadlock with fb_helper with async RPM requests drm/nouveau: Remove duplicate poll_enable() in pmops_runtime_suspend() drm/nouveau/drm/nouveau: Fix bogus drm_kms_helper_poll_enable() placement
2018-09-12Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/netLinus Torvalds32-257/+323
Pull networking fixes from David Miller: 1) Fix up several Kconfig dependencies in netfilter, from Martin Willi and Florian Westphal. 2) Memory leak in be2net driver, from Petr Oros. 3) Memory leak in E-Switch handling of mlx5 driver, from Raed Salem. 4) mlx5_attach_interface needs to check for errors, from Huy Nguyen. 5) tipc_release() needs to orphan the sock, from Cong Wang. 6) Need to program TxConfig register after TX/RX is enabled in r8169 driver, not beforehand, from Maciej S. Szmigiero. 7) Handle 64K PAGE_SIZE properly in ena driver, from Netanel Belgazal. 8) Fix crash regression in ip_do_fragment(), from Taehee Yoo. 9) syzbot can create conditions where kernel log is flooded with synflood warnings due to creation of many listening sockets, fix that. From Willem de Bruijn. 10) Fix RCU issues in rds socket layer, from Cong Wang. 11) Fix vlan matching in nfp driver, from Pieter Jansen van Vuuren. * git://git.kernel.org/pub/scm/linux/kernel/git/davem/net: (59 commits) nfp: flower: reject tunnel encap with ipv6 outer headers for offloading nfp: flower: fix vlan match by checking both vlan id and vlan pcp tipc: check return value of __tipc_dump_start() s390/qeth: don't dump past end of unknown HW header s390/qeth: use vzalloc for QUERY OAT buffer s390/qeth: switch on SG by default for IQD devices s390/qeth: indicate error when netdev allocation fails rds: fix two RCU related problems r8169: Clear RTL_FLAG_TASK_*_PENDING when clearing RTL_FLAG_TASK_ENABLED erspan: fix error handling for erspan tunnel erspan: return PACKET_REJECT when the appropriate tunnel is not found tcp: rate limit synflood warnings further MIPS: lantiq: dma: add dev pointer netfilter: xt_hashlimit: use s->file instead of s->private netfilter: nfnetlink_queue: Solve the NFQUEUE/conntrack clash for NF_REPEAT netfilter: cttimeout: ctnl_timeout_find_get() returns incorrect pointer to type netfilter: conntrack: timeout interface depend on CONFIG_NF_CONNTRACK_TIMEOUT netfilter: conntrack: reset tcp maxwin on re-register qmi_wwan: Support dynamic config on Quectel EP06 ethernet: renesas: convert to SPDX identifiers ...
2018-09-13drm/nouveau/devinit: fix warning when PMU/PRE_OS is missingBen Skeggs1-10/+11
Messed up when sending pull request and sent an outdated version of previous patch, this fixes it up to remove warnings. Signed-off-by: Ben Skeggs <bskeggs@redhat.com>
2018-09-12null_blk: fix zoned support for non-rq based operationJens Axboe3-34/+62
The supported added for zones in null_blk seem to assume that only rq based operation is possible. But this depends on the queue_mode setting, if this is set to 0, then cmd->bio is what we need to be operating on. Right now any attempt to load null_blk with queue_mode=0 will insta-crash, since cmd->rq is NULL and null_handle_cmd() assumes it to always be set. Make the zoned code deal with bio's instead, or pass in the appropriate sector/nr_sectors instead. Fixes: ca4b2a011948 ("null_blk: add zone support") Tested-by: Omar Sandoval <osandov@fb.com> Signed-off-by: Jens Axboe <axboe@kernel.dk>
2018-09-12nfp: flower: reject tunnel encap with ipv6 outer headers for offloadingLouis Peens1-0/+6
This fixes a bug where ipv6 tunnels would report that it is getting offloaded to hardware but would actually be rejected by hardware. Fixes: b27d6a95a70d ("nfp: compile flower vxlan tunnel set actions") Signed-off-by: Louis Peens <louis.peens@netronome.com> Reviewed-by: John Hurley <john.hurley@netronome.com> Reviewed-by: Simon Horman <simon.horman@netronome.com> Reviewed-by: Jakub Kicinski <jakub.kicinski@netronome.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2018-09-12nfp: flower: fix vlan match by checking both vlan id and vlan pcpPieter Jansen van Vuuren3-1/+13
Previously we only checked if the vlan id field is present when trying to match a vlan tag. The vlan id and vlan pcp field should be treated independently. Fixes: 5571e8c9f241 ("nfp: extend flower matching capabilities") Signed-off-by: Pieter Jansen van Vuuren <pieter.jansenvanvuuren@netronome.com> Reviewed-by: Jakub Kicinski <jakub.kicinski@netronome.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2018-09-12s390/qeth: don't dump past end of unknown HW headerJulian Wiedmann2-2/+2
For inbound data with an unsupported HW header format, only dump the actual HW header. We have no idea how much payload follows it, and what it contains. Worst case, we dump past the end of the Inbound Buffer and access whatever is located next in memory. Signed-off-by: Julian Wiedmann <jwi@linux.ibm.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2018-09-12s390/qeth: use vzalloc for QUERY OAT bufferWenjia Zhang1-2/+3
qeth_query_oat_command() currently allocates the kernel buffer for the SIOC_QETH_QUERY_OAT ioctl with kzalloc. So on systems with fragmented memory, large allocations may fail (eg. the qethqoat tool by default uses 132KB). Solve this issue by using vzalloc, backing the allocation with non-contiguous memory. Signed-off-by: Wenjia Zhang <wenjia@linux.ibm.com> Reviewed-by: Julian Wiedmann <jwi@linux.ibm.com> Signed-off-by: Julian Wiedmann <jwi@linux.ibm.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2018-09-12s390/qeth: switch on SG by default for IQD devicesJulian Wiedmann1-0/+2
Scatter-gather transmit brings a nice performance boost. Considering the rather large MTU sizes at play, it's also totally the Right Thing To Do. Signed-off-by: Julian Wiedmann <jwi@linux.ibm.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2018-09-12s390/qeth: indicate error when netdev allocation failsJulian Wiedmann1-1/+3
Bailing out on allocation error is nice, but we also need to tell the ccwgroup core that creating the qeth groupdev failed. Fixes: d3d1b205e89f ("s390/qeth: allocate netdevice early") Signed-off-by: Julian Wiedmann <jwi@linux.ibm.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2018-09-12Merge tag 'scsi-fixes' of ↵Linus Torvalds5-94/+101
git://git.kernel.org/pub/scm/linux/kernel/git/jejb/scsi Pull SCSI fixes from James Bottomley: "Three fixes, all in drivers (qedi and iscsi target) so no wider impact even if the code changes are a bit extensive" * tag 'scsi-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/jejb/scsi: scsi: qedi: Add the CRC size within iSCSI NVM image scsi: iscsi: target: Fix conn_ops double free scsi: iscsi: target: Set conn->sess to NULL when iscsi_login_set_conn_values fails
2018-09-12s390/zcrypt: remove VLA usage from the AP busMartin Schwidefsky1-53/+33
The use of variable length arrays on the stack is deprecated. git commit 3d8f60d38e249f989a7fca9c2370c31c3d5487e1 "s390/zcrypt: hex string mask improvements for apmask and aqmask." added three new VLA arrays. Remove them again. Reviewed-by: Harald Freudenberger <freude@linux.ibm.com> Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
2018-09-12firmware: Fix security issue with request_firmware_into_buf()Rishabh Bhatnagar1-12/+18
When calling request_firmware_into_buf() with the FW_OPT_NOCACHE flag it is expected that firmware is loaded into buffer from memory. But inside alloc_lookup_fw_priv every new firmware that is loaded is added to the firmware cache (fwc) list head. So if any driver requests a firmware that is already loaded the code iterates over the above mentioned list and it can end up giving a pointer to other device driver's firmware buffer. Also the existing copy may either be modified by drivers, remote processors or even freed. This causes a potential security issue with batched requests when using request_firmware_into_buf. Fix alloc_lookup_fw_priv to not add to the fwc head list if FW_OPT_NOCACHE is set, and also don't do the lookup in the list. Fixes: 0e742e9275 ("firmware: provide infrastructure to make fw caching optional") [mcgrof: broken since feature introduction on v4.8] Cc: stable@vger.kernel.org # v4.8+ Signed-off-by: Vikram Mulukutla <markivx@codeaurora.org> Signed-off-by: Rishabh Bhatnagar <rishabhb@codeaurora.org> Signed-off-by: Luis Chamberlain <mcgrof@kernel.org> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
generated by cgit v1.2.3 (git 2.39.1) at 2025-02-12 18:13:37 +0000