- 09 12月, 2016 1 次提交
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由 Shaohua Li 提交于
Implement show_options() callback for intel resource control filesystem to expose the active mount options in /proc/ Signed-off-by: NShaohua Li <shli@fb.com> Cc: Fenghua Yu <fenghua.yu@intel.com> Link: http://lkml.kernel.org/r/7dce7c1886ac9289442d254ea18322c92bd968da.1480717072.git.shli@fb.comSigned-off-by: NThomas Gleixner <tglx@linutronix.de>
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- 02 12月, 2016 1 次提交
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由 Fenghua Yu 提交于
intel_rdt_sched_in() must be called with preemption disabled because the function accesses percpu variables (pqr_state and closid). If a task moves itself via move_myself() preemption is enabled, which violates the calling convention and can result in incorrect closid selection when the task gets preempted or migrated. Add the required protection and a comment about the calling convention. Signed-off-by: NFenghua Yu <fenghua.yu@intel.com> Cc: "Ravi V Shankar" <ravi.v.shankar@intel.com> Cc: "Tony Luck" <tony.luck@intel.com> Cc: "Marcelo Tosatti" <mtosatti@redhat.com> Cc: "Sai Prakhya" <sai.praneeth.prakhya@intel.com> Cc: "Vikas Shivappa" <vikas.shivappa@linux.intel.com> Cc: "H. Peter Anvin" <h.peter.anvin@intel.com> Link: http://lkml.kernel.org/r/1480625714-54246-1-git-send-email-fenghua.yu@intel.comSigned-off-by: NThomas Gleixner <tglx@linutronix.de>
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- 28 11月, 2016 2 次提交
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由 Fenghua Yu 提交于
When removing a sub directory/rdtgroup by rmdir or umount, closid in a task in the sub directory is set to default rdtgroup's closid which is 0. If the task is running on a CPU, the PQR_ASSOC MSR is only updated when the task runs through a context switch. Up to the context switch, the task runs with the wrong closid. Make the change immediately effective by invoking a smp function call on all CPUs which are running moved task. If one of the affected tasks was moved or scheduled out before the function call is executed on the CPU the only damage is the extra interruption of the CPU. [ tglx: Reworked it to avoid blindly interrupting all CPUs and extra loops ] Signed-off-by: NFenghua Yu <fenghua.yu@intel.com> Cc: "Ravi V Shankar" <ravi.v.shankar@intel.com> Cc: "Tony Luck" <tony.luck@intel.com> Cc: "Sai Prakhya" <sai.praneeth.prakhya@intel.com> Cc: "Vikas Shivappa" <vikas.shivappa@linux.intel.com> Cc: "H. Peter Anvin" <h.peter.anvin@intel.com> Link: http://lkml.kernel.org/r/1479511084-59727-2-git-send-email-fenghua.yu@intel.comSigned-off-by: NThomas Gleixner <tglx@linutronix.de>
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由 Fenghua Yu 提交于
There was a cut & paste error when adding code to update the per-cpu closid when changing the bitmask of CPUs to an rdt group. The update erronously assigns the closid of the default group to the CPUs which are moved to a group instead of assigning the closid of their new group. Use the proper closid. Fixes: f4107702 ("x86/intel_rdt: Update percpu closid immeditately on CPUs affected by change") Signed-off-by: NFenghua Yu <fenghua.yu@intel.com> Cc: "Ravi V Shankar" <ravi.v.shankar@intel.com> Cc: "Tony Luck" <tony.luck@intel.com> Cc: "Sai Prakhya" <sai.praneeth.prakhya@intel.com> Cc: "Vikas Shivappa" <vikas.shivappa@linux.intel.com> Cc: "H. Peter Anvin" <h.peter.anvin@intel.com> Link: http://lkml.kernel.org/r/1479511084-59727-1-git-send-email-fenghua.yu@intel.comSigned-off-by: NThomas Gleixner <tglx@linutronix.de>
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- 16 11月, 2016 8 次提交
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由 Thomas Gleixner 提交于
Resolve the cpu/scattered conflict. Signed-off-by: NThomas Gleixner <tglx@linutronix.de>
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由 He Chen 提交于
Sparse populated CPUID leafs are collected in a software provided leaf to avoid bloat of the x86_capability array, but there is no way to rebuild the real leafs (e.g. for KVM CPUID enumeration) other than rereading the CPUID leaf from the CPU. While this is possible it is problematic as it does not take software disabled features into account. If a feature is disabled on the host it should not be exposed to a guest either. Add get_scattered_cpuid_leaf() which rebuilds the leaf from the scattered cpuid table information and the active CPU features. [ tglx: Rewrote changelog ] Signed-off-by: NHe Chen <he.chen@linux.intel.com> Reviewed-by: NBorislav Petkov <bp@suse.de> Cc: Luwei Kang <luwei.kang@intel.com> Cc: kvm@vger.kernel.org Cc: Radim Krčmář <rkrcmar@redhat.com> Cc: Piotr Luc <Piotr.Luc@intel.com> Cc: Borislav Petkov <bp@alien8.de> Cc: Paolo Bonzini <pbonzini@redhat.com> Link: http://lkml.kernel.org/r/1478856336-9388-3-git-send-email-he.chen@linux.intel.comSigned-off-by: NThomas Gleixner <tglx@linutronix.de>
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由 He Chen 提交于
cpuid_regs is defined multiple times as structure and enum. Rename the enum and move all of it to processor.h so we don't end up with more instances. Rename the misnomed register enumeration from CR_* to the obvious CPUID_*. [ tglx: Rewrote changelog ] Signed-off-by: NHe Chen <he.chen@linux.intel.com> Reviewed-by: NBorislav Petkov <bp@alien8.de> Cc: Luwei Kang <luwei.kang@intel.com> Cc: kvm@vger.kernel.org Cc: Radim Krčmář <rkrcmar@redhat.com> Cc: Piotr Luc <Piotr.Luc@intel.com> Cc: Paolo Bonzini <pbonzini@redhat.com> Link: http://lkml.kernel.org/r/1478856336-9388-2-git-send-email-he.chen@linux.intel.comSigned-off-by: NThomas Gleixner <tglx@linutronix.de>
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由 Fenghua Yu 提交于
If CPUs are moved to or removed from a rdtgroup, the percpu closid storage is updated. If tasks running on an affected CPU use the percpu closid then the PQR_ASSOC MSR is only updated when the task runs through a context switch. Up to the context switch the CPUs operate on the wrong closid. This state is potentially unbound. Make the change immediately effective by invoking a smp function call on the affected CPUs which stores the new closid in the perpu storage and calls the rdt_sched_in() function which updates the MSR, if the current task uses the percpu closid. [ tglx: Made it work and massaged changelog once more ] Signed-off-by: NFenghua Yu <fenghua.yu@intel.com> Cc: "Ravi V Shankar" <ravi.v.shankar@intel.com> Cc: "Tony Luck" <tony.luck@intel.com> Cc: "Sai Prakhya" <sai.praneeth.prakhya@intel.com> Cc: "Vikas Shivappa" <vikas.shivappa@linux.intel.com> Cc: "Ingo Molnar" <mingo@elte.hu> Cc: "H. Peter Anvin" <h.peter.anvin@intel.com> Link: http://lkml.kernel.org/r/1478912558-55514-3-git-send-email-fenghua.yu@intel.comSigned-off-by: NThomas Gleixner <tglx@linutronix.de>
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由 Fenghua Yu 提交于
All CPUs in a rdtgroup are given back to the default rdtgroup before the rdtgroup is removed during umount. After umount, the default rdtgroup contains all online CPUs, but the per cpu closids are not cleared. As a result the stale closid value will be used immediately after the next mount. Move all cpus to the default group and update the percpu closid storage. [ tglx: Massaged changelong ] Signed-off-by: NFenghua Yu <fenghua.yu@intel.com> Cc: "Ravi V Shankar" <ravi.v.shankar@intel.com> Cc: "Tony Luck" <tony.luck@intel.com> Cc: "Sai Prakhya" <sai.praneeth.prakhya@intel.com> Cc: "Vikas Shivappa" <vikas.shivappa@linux.intel.com> Cc: "Ingo Molnar" <mingo@elte.hu> Cc: "H. Peter Anvin" <h.peter.anvin@intel.com> Link: http://lkml.kernel.org/r/1478912558-55514-2-git-send-email-fenghua.yu@intel.comSigned-off-by: NThomas Gleixner <tglx@linutronix.de>
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由 Thomas Gleixner 提交于
arch/x86/kernel/cpu/intel_rdt_rdtgroup.c: In function 'rdtgroup_kn_lock_live': arch/x86/kernel/cpu/intel_rdt_rdtgroup.c:658:2: error: implicit declaration of function 'kernfs_break_active_protection' [-Werror=implicit-function-declaration] Reported-by: NIngo Molnar <mingo@kernel.org> Signed-off-by: NThomas Gleixner <tglx@linutronix.de> Cc: Shaohua Li <shli@fb.com> Cc: Fenghua Yu <fenghua.yu@intel.com> Cc: Tony Luck <tony.luck@intel.com>
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由 Thomas Gleixner 提交于
The cpu online/offline callbacks of intel_rdt lock rdtgroup_mutex nested inside of cpu hotplug lock. rdtgroup_cpus_write() does it in reverse order. Remove the get/put_online_cpus() calls from rdtgroup_cpus_write(). This is safe against cpu hotplug as the resource group cpumasks are protected by rdtgroup_mutex. Found by review, but should have been found if authors would have bothered to test cpu hotplug with lockdep enabled. Signed-off-by: NThomas Gleixner <tglx@linutronix.de> Cc: Shaohua Li <shli@fb.com> Cc: Fenghua Yu <fenghua.yu@intel.com> Cc: Tony Luck <tony.luck@intel.com>
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由 Fenghua Yu 提交于
The info directory and the per-resource subdirectories of the info directory have no reference to a struct rdtgroup in kn->priv. An attempt to remove one of those directories results in a NULL pointer dereference. Protect the directories from removal and return -EPERM instead of -ENOENT. [ tglx: Massaged changelog ] Signed-off-by: NFenghua Yu <fenghua.yu@intel.com> Cc: "Ravi V Shankar" <ravi.v.shankar@intel.com> Cc: "Tony Luck" <tony.luck@intel.com> Cc: "Sai Prakhya" <sai.praneeth.prakhya@intel.com> Cc: "Vikas Shivappa" <vikas.shivappa@linux.intel.com> Cc: "Ingo Molnar" <mingo@elte.hu> Cc: "H. Peter Anvin" <h.peter.anvin@intel.com> Link: http://lkml.kernel.org/r/1478912558-55514-1-git-send-email-fenghua.yu@intel.comSigned-off-by: NThomas Gleixner <tglx@linutronix.de>
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- 14 11月, 2016 13 次提交
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由 Linus Torvalds 提交于
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git://git.kernel.org/pub/scm/virt/kvm/kvm由 Linus Torvalds 提交于
Pull KVM fixes from Paolo Bonzini: "ARM fixes. There are a couple pending x86 patches but they'll have to wait for next week" * tag 'for-linus' of git://git.kernel.org/pub/scm/virt/kvm/kvm: KVM: arm/arm64: vgic: Kick VCPUs when queueing already pending IRQs KVM: arm/arm64: vgic: Prevent access to invalid SPIs arm/arm64: KVM: Perform local TLB invalidation when multiplexing vcpus on a single CPU
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由 Linus Torvalds 提交于
Merge media fixes from Mauro Carvalho Chehab: "This contains two patches fixing problems with my patch series meant to make USB drivers to work again after the DMA on stack changes. The last patch on this series is actually not related to DMA on stack. It solves a longstanding bug affecting module unload, causing module_put() to be called twice. It was reported by the user who reported and tested the issues with the gp8psk driver with the DMA fixup patches. As we're late at -rc cycle, maybe you prefer to not apply it right now. If this is the case, I'll add to the pile of patches for 4.10. Exceptionally this time, I'm sending the patches via e-mail, because I'm on another trip, and won't be able to use the usual procedure until Monday. Also, it is only three patches, and you followed already the discussions about the first one" * emailed patches from Mauro Carvalho Chehab <mchehab@osg.samsung.com>: gp8psk: Fix DVB frontend attach gp8psk: fix gp8psk_usb_in_op() logic dvb-usb: move data_mutex to struct dvb_usb_device
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git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/char-misc由 Linus Torvalds 提交于
Pull char/misc fixes from Greg KH: "Here are three small driver fixes for some reported issues for 4.9-rc5. One for the hyper-v subsystem, fixing up a naming issue that showed up in 4.9-rc1, one mei driver fix, and one fix for parallel ports, resolving a reported regression. All have been in linux-next with no reported issues" * tag 'char-misc-4.9-rc5' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/char-misc: ppdev: fix double-free of pp->pdev->name vmbus: make sysfs names consistent with PCI mei: bus: fix received data size check in NFC fixup
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git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/driver-core由 Linus Torvalds 提交于
Pull driver core fixes from Greg KH: "Here are two driver core fixes for 4.9-rc5. The first resolves an issue with some drivers not liking to be unbound and bound again (if CONFIG_DEBUG_TEST_DRIVER_REMOVE is enabled), which solves some reported problems with graphics and storage drivers. The other resolves a smatch error with the 4.9-rc1 driver core changes around this feature. Both have been in linux-next with no reported issues" * tag 'driver-core-4.9-rc5' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/driver-core: driver core: fix smatch warning on dev->bus check driver core: skip removal test for non-removable drivers
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git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/staging由 Linus Torvalds 提交于
Pull staging/IIO fixes from Grek KH: "Here are a few small staging and iio driver fixes for reported issues. The last one was cherry-picked from my -next branch to resolve a build warning that Arnd fixed, in his quest to be able to turn -Wmaybe-uninitialized back on again. That patch, and all of the others, have been in linux-next for a while with no reported issues" * tag 'staging-4.9-rc5' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/staging: iio: maxim_thermocouple: detect invalid storage size in read() staging: nvec: remove managed resource from PS2 driver Revert "staging: nvec: ps2: change serio type to passthrough" drivers: staging: nvec: remove bogus reset command for PS/2 interface staging: greybus: arche-platform: fix device reference leak staging: comedi: ni_tio: fix buggy ni_tio_clock_period_ps() return value staging: sm750fb: Fix bugs introduced by early commits iio: hid-sensors: Increase the precision of scale to fix wrong reading interpretation. iio: orientation: hid-sensor-rotation: Add PM function (fix non working driver) iio: st_sensors: fix scale configuration for h3lis331dl staging: iio: ad5933: avoid uninitialized variable in error case
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git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb由 Linus Torvalds 提交于
Pull USB / PHY fixes from Greg KH: "Here are a number of small USB and PHY driver fixes for 4.9-rc5 Nothing major, just small fixes for reported issues, all of these have been in linux-next for a while with no reported issues" * tag 'usb-4.9-rc5' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb: USB: cdc-acm: fix TIOCMIWAIT cdc-acm: fix uninitialized variable drivers/usb: Skip auto handoff for TI and RENESAS usb controllers usb: musb: remove duplicated actions usb: musb: da8xx: Don't print phy error on -EPROBE_DEFER phy: sun4i: check PMU presence when poking unknown bit of pmu phy-rockchip-pcie: remove deassert of phy_rst from exit callback phy: da8xx-usb: rename the ohci device to ohci-da8xx phy: Add reset callback for not generic phy uwb: fix device reference leaks usb: gadget: u_ether: remove interrupt throttling usb: dwc3: st: add missing <linux/pinctrl/consumer.h> include usb: dwc3: Fix error handling for core init
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git://git.kernel.dk/linux-block由 Linus Torvalds 提交于
Pull more block fixes from Jens Axboe: "Since I mistakenly left out the lightnvm regression fix yesterday and the aoeblk seems adequately tested at this point, might as well send out another pull to make -rc5" * 'for-linus' of git://git.kernel.dk/linux-block: aoe: fix crash in page count manipulation lightnvm: invalid offset calculation for lba_shift
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git://git.kernel.org/pub/scm/linux/kernel/git/jejb/scsi由 Linus Torvalds 提交于
Pull SCSI fixes from James Bottomley: "The megaraid_sas patch in here fixes a major regression in the last fix set that made all megaraid_sas cards unusable. It turns out no-one had actually tested such an "obvious" fix, sigh. The fix for the fix has been tested ... The next most serious is the vmw_pvscsi abort problem which basically means that aborts don't work on the vmware paravirt devices and error handling always escalates to reset. The rest are an assortment of missed reference counting in certain paths and corner case bugs that show up on some architectures" * tag 'scsi-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/jejb/scsi: scsi: megaraid_sas: fix macro MEGASAS_IS_LOGICAL to avoid regression scsi: qla2xxx: fix invalid DMA access after command aborts in PCI device remove scsi: qla2xxx: do not queue commands when unloading scsi: libcxgbi: fix incorrect DDP resource cleanup scsi: qla2xxx: Fix scsi scan hang triggered if adapter fails during init scsi: scsi_dh_alua: Fix a reference counting bug scsi: vmw_pvscsi: return SUCCESS for successful command aborts scsi: mpt3sas: Fix for block device of raid exists even after deleting raid disk scsi: scsi_dh_alua: fix missing kref_put() in alua_rtpg_work()
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git://git.kernel.org/pub/scm/linux/kernel/git/clk/linux由 Linus Torvalds 提交于
Pull clk fixes from Stephen Boyd: "The typical collection of minor bug fixes in clk drivers. We don't have anything in the core framework here, just driver fixes. There's a boot fix for Samsung devices and a safety measure for qoriq to prevent CPUs from running too fast. There's also a fix for i.MX6Q to properly handle audio clock rates. We also have some "that's obviously wrong" fixes like bad NULL pointer checks in the MPP driver and a poor usage of __pa in the xgene clk driver that are fixed here" * tag 'clk-fixes-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/clk/linux: clk: mmp: pxa910: fix return value check in pxa910_clk_init() clk: mmp: pxa168: fix return value check in pxa168_clk_init() clk: mmp: mmp2: fix return value check in mmp2_clk_init() clk: qoriq: Don't allow CPU clocks higher than starting value clk: imx: fix integer overflow in AV PLL round rate clk: xgene: Don't call __pa on ioremaped address clk/samsung: Use CLK_OF_DECLARE_DRIVER initialization method for CLKOUT clk: rockchip: don't return NULL when failing to register ddrclk branch
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由 Mauro Carvalho Chehab 提交于
The DVB binding schema at the DVB core assumes that the frontend is a separate driver. Faling to do that causes OOPS when the module is removed, as it tries to do a symbol_put_addr on an internal symbol, causing craches like: WARNING: CPU: 1 PID: 28102 at kernel/module.c:1108 module_put+0x57/0x70 Modules linked in: dvb_usb_gp8psk(-) dvb_usb dvb_core nvidia_drm(PO) nvidia_modeset(PO) snd_hda_codec_hdmi snd_hda_intel snd_hda_codec snd_hwdep snd_hda_core snd_pcm snd_timer snd soundcore nvidia(PO) [last unloaded: rc_core] CPU: 1 PID: 28102 Comm: rmmod Tainted: P WC O 4.8.4-build.1 #1 Hardware name: MSI MS-7309/MS-7309, BIOS V1.12 02/23/2009 Call Trace: dump_stack+0x44/0x64 __warn+0xfa/0x120 module_put+0x57/0x70 module_put+0x57/0x70 warn_slowpath_null+0x23/0x30 module_put+0x57/0x70 gp8psk_fe_set_frontend+0x460/0x460 [dvb_usb_gp8psk] symbol_put_addr+0x27/0x50 dvb_usb_adapter_frontend_exit+0x3a/0x70 [dvb_usb] From Derek's tests: "Attach bug is fixed, tuning works, module unloads without crashing. Everything seems ok!" Reported-by: NDerek <user.vdr@gmail.com> Tested-by: NDerek <user.vdr@gmail.com> Signed-off-by: NMauro Carvalho Chehab <mchehab@s-opensource.com> Signed-off-by: NLinus Torvalds <torvalds@linux-foundation.org>
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由 Mauro Carvalho Chehab 提交于
Commit bc29131ecb10 ("[media] gp8psk: don't do DMA on stack") fixed the usage of DMA on stack, but the memcpy was wrong for gp8psk_usb_in_op(). Fix it. From Derek's email: "Fix confirmed using 2 different Skywalker models with HD mpeg4, SD mpeg2." Suggested-by: NJohannes Stezenbach <js@linuxtv.org> Fixes: bc29131ecb10 ("[media] gp8psk: don't do DMA on stack") Tested-by: NDerek <user.vdr@gmail.com> Signed-off-by: NMauro Carvalho Chehab <mchehab@s-opensource.com> Signed-off-by: NLinus Torvalds <torvalds@linux-foundation.org>
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由 Mauro Carvalho Chehab 提交于
The data_mutex is initialized too late, as it is needed for each device driver's power control, causing an OOPS: dvb-usb: found a 'TerraTec/qanu USB2.0 Highspeed DVB-T Receiver' in warm state. BUG: unable to handle kernel NULL pointer dereference at (null) IP: [<ffffffff846617af>] __mutex_lock_slowpath+0x6f/0x100 PGD 0 Oops: 0002 [#1] SMP Modules linked in: dvb_usb_cinergyT2(+) dvb_usb CPU: 0 PID: 2029 Comm: modprobe Not tainted 4.9.0-rc4-dvbmod #24 Hardware name: FUJITSU LIFEBOOK A544/FJNBB35 , BIOS Version 1.17 05/09/2014 task: ffff88020e943840 task.stack: ffff8801f36ec000 RIP: 0010:[<ffffffff846617af>] [<ffffffff846617af>] __mutex_lock_slowpath+0x6f/0x100 RSP: 0018:ffff8801f36efb10 EFLAGS: 00010282 RAX: 0000000000000000 RBX: ffff88021509bdc8 RCX: 00000000c0000100 RDX: 0000000000000001 RSI: 0000000000000000 RDI: ffff88021509bdcc RBP: ffff8801f36efb58 R08: ffff88021f216320 R09: 0000000000100000 R10: ffff88021f216320 R11: 00000023fee6c5a1 R12: ffff88020e943840 R13: ffff88021509bdcc R14: 00000000ffffffff R15: ffff88021509bdd0 FS: 00007f21adb86740(0000) GS:ffff88021f200000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 0000000000000000 CR3: 0000000215bce000 CR4: 00000000001406f0 Call Trace: mutex_lock+0x16/0x25 cinergyt2_power_ctrl+0x1f/0x60 [dvb_usb_cinergyT2] dvb_usb_device_init+0x21e/0x5d0 [dvb_usb] cinergyt2_usb_probe+0x21/0x50 [dvb_usb_cinergyT2] usb_probe_interface+0xf3/0x2a0 driver_probe_device+0x208/0x2b0 __driver_attach+0x87/0x90 driver_probe_device+0x2b0/0x2b0 bus_for_each_dev+0x52/0x80 bus_add_driver+0x1a3/0x220 driver_register+0x56/0xd0 usb_register_driver+0x77/0x130 do_one_initcall+0x46/0x180 free_vmap_area_noflush+0x38/0x70 kmem_cache_alloc+0x84/0xc0 do_init_module+0x50/0x1be load_module+0x1d8b/0x2100 find_symbol_in_section+0xa0/0xa0 SyS_finit_module+0x89/0x90 entry_SYSCALL_64_fastpath+0x13/0x94 Code: e8 a7 1d 00 00 8b 03 83 f8 01 0f 84 97 00 00 00 48 8b 43 10 4c 8d 7b 08 48 89 63 10 4c 89 3c 24 41 be ff ff ff ff 48 89 44 24 08 <48> 89 20 4c 89 64 24 10 eb 1a 49 c7 44 24 08 02 00 00 00 c6 43 RIP [<ffffffff846617af>] __mutex_lock_slowpath+0x6f/0x100 RSP <ffff8801f36efb10> CR2: 0000000000000000 So, move it to the struct dvb_usb_device and initialize it before calling the driver's callbacks. Reported-by: NJörg Otte <jrg.otte@gmail.com> Tested-by: NJörg Otte <jrg.otte@gmail.com> Signed-off-by: NMauro Carvalho Chehab <mchehab@s-opensource.com> Signed-off-by: NLinus Torvalds <torvalds@linux-foundation.org>
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- 13 11月, 2016 1 次提交
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由 Arnd Bergmann 提交于
As found by gcc -Wmaybe-uninitialized, having a storage_bytes value other than 2 or 4 will result in undefined behavior: drivers/iio/temperature/maxim_thermocouple.c: In function 'maxim_thermocouple_read': drivers/iio/temperature/maxim_thermocouple.c:141:5: error: 'ret' may be used uninitialized in this function [-Werror=maybe-uninitialized] This probably cannot happen, but returning -EINVAL here is appropriate and makes gcc happy and the code more robust. Fixes: 231147ee ("iio: maxim_thermocouple: Align 16 bit big endian value of raw reads") Signed-off-by: NArnd Bergmann <arnd@arndb.de> Signed-off-by: NJonathan Cameron <jic23@kernel.org> (cherry picked from commit 32cb7d27) Signed-off-by: NGreg Kroah-Hartman <gregkh@linuxfoundation.org>
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- 12 11月, 2016 14 次提交
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由 Jens Axboe 提交于
aoeblk contains some mysterious code, that wants to elevate the bio vec page counts while it's under IO. That is not needed, it's fragile, and it's causing kernel oopses for some. Reported-by: NTested-by: Don Koch <kochd@us.ibm.com> Tested-by: NTested-by: Don Koch <kochd@us.ibm.com> Signed-off-by: NJens Axboe <axboe@fb.com>
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由 Matias Bjørling 提交于
The ns->lba_shift assumes its value to be the logarithmic of the LA size. A previous patch duplicated the lba_shift calculation into lightnvm. It prematurely also subtracted a 512byte shift, which commonly is applied per-command. The 512byte shift being subtracted twice led to data loss when restoring the logical to physical mapping table from device and when issuing I/O commands using rrpc. Fix offset by removing the 512byte shift subtraction when calculating lba_shift. Fixes: b0b4e09c "lightnvm: control life of nvm_dev in driver" Reported-by: NJavier González <javier@cnexlabs.com> Signed-off-by: NMatias Bjørling <m@bjorling.me> Signed-off-by: NJens Axboe <axboe@fb.com>
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git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm由 Linus Torvalds 提交于
Pull ACPI fix from Rafael Wysocki: "Fix a recent regression in the 8250_dw serial driver introduced by adding a quirk for the APM X-Gene SoC to it which uncovered an issue related to the handling of built-in device properties in the core ACPI device enumeration code (Heikki Krogerus)" * tag 'acpi-4.9-rc5' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm: ACPI / platform: Add support for build-in properties
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git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm由 Linus Torvalds 提交于
Pull power management fixes from Rafael Wysocki: "These fix two bugs in error code paths in the PM core (system-wide suspend of devices), a device reference leak in the boot-time suspend test code and a cpupower utility regression from the 4.7 cycle. Specifics: - Prevent the PM core from attempting to suspend parent devices if any of their children, whose suspend callbacks were invoked asynchronously, have failed to suspend during the "late" and "noirq" phases of system-wide suspend of devices (Brian Norris). - Prevent the boot-time system suspend test code from leaking a reference to the RTC device used by it (Johan Hovold). - Fix cpupower to use the return value of one of its library functions correctly and restore the correct behavior of it when used for setting cpufreq tunables broken during the 4.7 development cycle (Laura Abbott)" * tag 'pm-4.9-rc5' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm: PM / sleep: don't suspend parent when async child suspend_{noirq, late} fails PM / sleep: fix device reference leak in test_suspend cpupower: Correct return type of cpu_power_is_cpu_online() in cpufreq-set
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git://git.kernel.org/pub/scm/linux/kernel/git/vgupta/arc由 Linus Torvalds 提交于
Pull ARC fixes from Vineet Gupta: - mmap handler for dma ops as generic handler no longer works for us [Alexey] - Fixes for EZChip platform [Noam] - Fix RTC clocksource driver build issue - ARC IRQ handling fixes [Yuriy] - Revert a recent makefile change which doesn't go well with oldish tools out in the wild * tag 'arc-4.9-rc5' of git://git.kernel.org/pub/scm/linux/kernel/git/vgupta/arc: ARCv2: MCIP: Use IDU_M_DISTRI_DEST mode if there is only 1 destination core ARC: IRQ: Do not use hwirq as virq and vice versa ARC: [plat-eznps] set default baud for early console ARC: [plat-eznps] remove IPI clear from SMP operations Revert "ARC: build: retire old toggles" ARC: timer: rtc: implement read loop in "C" vs. inline asm ARC: change return value of userspace cmpxchg assist syscall arc: Implement arch-specific dma_map_ops.mmap ARC: [SMP] avoid overriding present cpumask ARC: Enable PERF_EVENTS in nSIM driven platforms
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由 Linus Torvalds 提交于
Merge tag 'platform-drivers-x86-v4.9-3' of git://git.infradead.org/users/dvhart/linux-platform-drivers-x86 Pull x86 platform driver fixes from Darren Hart: "Minor doc fix, a DMI match for ideapad and a fix to toshiba-wmi to avoid loading on non-toshiba systems. Documentation/ABI: - ibm_rtl: The "What:" fields are incomplete toshiba-wmi: - Fix loading the driver on non Toshiba laptops ideapad-laptop: - Add another DMI entry for Yoga 900" * tag 'platform-drivers-x86-v4.9-3' of git://git.infradead.org/users/dvhart/linux-platform-drivers-x86: Documentation/ABI: ibm_rtl: The "What:" fields are incomplete toshiba-wmi: Fix loading the driver on non Toshiba laptops ideapad-laptop: Add another DMI entry for Yoga 900
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git://git.kernel.dk/linux-block由 Linus Torvalds 提交于
Pull block fixes from Jens Axboe: "Two small (really, one liners both of them!) fixes that should go into this series: - Request allocation error handling fix for nbd, from Christophe, fixing a regression in this series. - An oops fix for drbd. Not a regression in this series, but stable material. From Richard" * 'for-linus' of git://git.kernel.dk/linux-block: drbd: Fix kernel_sendmsg() usage - potential NULL deref nbd: Fix error handling
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git://git.kernel.org/pub/scm/linux/kernel/git/helgaas/pci由 Linus Torvalds 提交于
Pull PCI fixes from Bjorn Helgaas: - Update MAINTAINERS for Intel VMD driver filename - Update Rockchip rk3399 host bridge driver DTS and resets - Fix ROM shadow problem that made some video device initialization fail * tag 'pci-v4.9-fixes-3' of git://git.kernel.org/pub/scm/linux/kernel/git/helgaas/pci: PCI: VMD: Update filename to reflect move arm64: dts: rockchip: add three new resets for rk3399 PCIe controller PCI: rockchip: Add three new resets as required properties PCI: Don't attempt to claim shadow copies of ROM
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git://people.freedesktop.org/~airlied/linux由 Linus Torvalds 提交于
Pull drm fixes from Dave Airlie: "AMD, radeon, i915, imx, msm and udl fixes: - amdgpu/radeon have a number of power management regressions and fixes along with some better error checking - imx has a single regression fix - udl has a single kmalloc instead of stack for usb control msg fix - msm has some fixes for modesetting bugs and regressions - i915 has a one fix for a Sandybridge regression along with some others for DP audio. They all seem pretty okay at this stage, we've got one MST fix I know going through process for i915, but I expect it'll be next week" * tag 'drm-fixes-for-v4.9-rc5' of git://people.freedesktop.org/~airlied/linux: (30 commits) drm/udl: make control msg static const. (v2) drm/amd/powerplay: implement get_clock_by_type for iceland. drm/amd/powerplay/smu7: fix checks in smu7_get_evv_voltages (v2) drm/amd/powerplay: update phm_get_voltage_evv_on_sclk for iceland drm/amd/powerplay: propagate errors in phm_get_voltage_evv_on_sclk drm/imx: disable planes before DC drm/amd/powerplay: return false instead of -EINVAL drm/amdgpu/powerplay/smu7: fix unintialized data usage drm/amdgpu: fix crash in acp_hw_fini drm/i915: Limit Valleyview and earlier to only using mappable scanout drm/i915: Round tile chunks up for constructing partial VMAs drm/i915/dp: Extend BDW DP audio workaround to GEN9 platforms drm/i915/dp: BDW cdclk fix for DP audio drm/i915/vlv: Prevent enabling hpd polling in late suspend drm/i915: Respect alternate_ddc_pin for all DDI ports drm/msm: Fix error handling crashes seen when VRAM allocation fails drm/msm/mdp5: 8x16 actually has 8 mixer stages drm/msm/mdp5: no scaling support on RGBn pipes for 8x16 drm/msm/mdp5: handle non-fullscreen base plane case drm/msm: Set CLK_IGNORE_UNUSED flag for PLL clocks ...
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git://git.kernel.org/pub/scm/linux/kernel/git/ulfh/mmc由 Linus Torvalds 提交于
Pull MMC fixes from Ulf Hansson: "MMC core: - Fix mmc card initialization for hosts not supporting HW busy detection - Fix mmc_test for sending commands during non-blocking write MMC host: - mxs: Avoid using an uninitialized - sdhci: Restore enhanced strobe setting during runtime resume - sdhci: Fix a couple of reset related issues - dw_mmc: Fix a reset controller issue" * tag 'mmc-v4.9-rc4' of git://git.kernel.org/pub/scm/linux/kernel/git/ulfh/mmc: mmc: mxs: Initialize the spinlock prior to using it mmc: mmc: Use 500ms as the default generic CMD6 timeout mmc: mmc_test: Fix "Commands during non-blocking write" tests mmc: sdhci: Fix missing enhanced strobe setting during runtime resume mmc: sdhci: Reset cmd and data circuits after tuning failure mmc: sdhci: Fix unexpected data interrupt handling mmc: sdhci: Fix CMD line reset interfering with ongoing data transfer mmc: dw_mmc: add the "reset" as name of reset controller Documentation: synopsys-dw-mshc: add binding for reset-names
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git://git.kernel.org/pub/scm/linux/kernel/git/linusw/linux-pinctrl由 Linus Torvalds 提交于
Pull pin control fixes from Linus Walleij: "All is about drivers, no core business going on. - Fix a host of runtime problems with the Intel Cherryview driver: suspend/resume needs to be marshalled properly, and strange effects from BIOS interaction during suspend/resume need to be dealt with. - A single bit was being set wrong in the Aspeed driver. - Fix an iProc probe ordering fallout resulting from v4.9 refactorings for bus population. - Do not specify a default trigger in the ST Micro cascaded GPIO IRQ controller: the kernel will moan. - Make IRQs optional altogether on the STM32 driver, it turns out not all systems have them or want them. - Fix a re-probe bug in the i.MX driver, it will eventually crash if probed repeatedly, not good" * tag 'pinctrl-v4.9-3' of git://git.kernel.org/pub/scm/linux/kernel/git/linusw/linux-pinctrl: pinctrl-aspeed-g5: Never set SCU90[6] pinctrl: cherryview: Prevent possible interrupt storm on resume pinctrl: cherryview: Serialize register access in suspend/resume pinctrl: imx: reset group index on probe pinctrl: stm32: move gpio irqs binding to optional pinctrl: stm32: remove dependency with interrupt controller pinctrl: st: don't specify default interrupt trigger pinctrl: iproc: Fix iProc and NSP GPIO support
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由 Rafael J. Wysocki 提交于
* pm-tools-fixes: cpupower: Correct return type of cpu_power_is_cpu_online() in cpufreq-set * pm-sleep-fixes: PM / sleep: don't suspend parent when async child suspend_{noirq, late} fails PM / sleep: fix device reference leak in test_suspend
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由 Rafael J. Wysocki 提交于
* device-properties: ACPI / platform: Add support for build-in properties
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由 Linus Torvalds 提交于
Merge fixes for -Wmaybe-uninitialized from Arnd Bergmann: "It took a while for some patches to make it into mainline through maintainer trees, but the 28-patch series is now reduced to 10, with one tiny patch added at the end. Aside from patches that are no longer required, I did these changes compared to version 1: - Dropped "iio: maxim_thermocouple: detect invalid storage size in read()", which is currently in linux-next as commit 32cb7d27. This is the only remaining warning I see for a couple of corner cases (kbuild bot reports it on blackfin, kernelci bot and arm-soc bot both report it on arm64) - Dropped "brcmfmac: avoid maybe-uninitialized warning in brcmf_cfg80211_start_ap", which is currently in net/master merge pending. - Dropped two x86 patches, "x86: math-emu: possible uninitialized variable use" and "x86: mark target address as output in 'insb' asm" as they do not seem to trigger for a default build, and I got no feedback on them. Both of these are ancient issues and seem harmless, I will send them again to the x86 maintainers once the rest is merged. - Dropped "rbd: false-postive gcc-4.9 -Wmaybe-uninitialized" based on feedback from Ilya Dryomov, who already has a different fix queued up for v4.10. The kbuild bot reports this as a warning for xtensa. - Replaced "crypto: aesni: avoid -Wmaybe-uninitialized warning" with a simpler patch, this one always triggers but my first solution would not be safe for linux-4.9 any more at this point. I'll follow up with the larger patch as a cleanup for 4.10. - Replaced "dib0700: fix nec repeat handling" with a better one, contributed by Sean Young" * -Wmaybe-uninitialized fixes: Kbuild: enable -Wmaybe-uninitialized warnings by default pcmcia: fix return value of soc_pcmcia_regulator_set infiniband: shut up a maybe-uninitialized warning crypto: aesni: shut up -Wmaybe-uninitialized warning rc: print correct variable for z8f0811 dib0700: fix nec repeat handling s390: pci: don't print uninitialized data for debugging nios2: fix timer initcall return value x86: apm: avoid uninitialized data NFSv4.1: work around -Wmaybe-uninitialized warning Kbuild: enable -Wmaybe-uninitialized warning for "make W=1"
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