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git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
Merge speculative store buffer bypass fixes from Thomas Gleixner:
- rework of the SPEC_CTRL MSR management to accomodate the new fancy
SSBD (Speculative Store Bypass Disable) bit handling.
- the CPU bug and sysfs infrastructure for the exciting new Speculative
Store Bypass 'feature'.
- support for disabling SSB via LS_CFG MSR on AMD CPUs including
Hyperthread synchronization on ZEN.
- PRCTL support for dynamic runtime control of SSB
- SECCOMP integration to automatically disable SSB for sandboxed
processes with a filter flag for opt-out.
- KVM integration to allow guests fiddling with SSBD including the new
software MSR VIRT_SPEC_CTRL to handle the LS_CFG based oddities on
AMD.
- BPF protection against SSB
.. this is just the core and x86 side, other architecture support will
come separately.
* 'speck-v20' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: (49 commits)
bpf: Prevent memory disambiguation attack
x86/bugs: Rename SSBD_NO to SSB_NO
KVM: SVM: Implement VIRT_SPEC_CTRL support for SSBD
x86/speculation, KVM: Implement support for VIRT_SPEC_CTRL/LS_CFG
x86/bugs: Rework spec_ctrl base and mask logic
x86/bugs: Remove x86_spec_ctrl_set()
x86/bugs: Expose x86_spec_ctrl_base directly
x86/bugs: Unify x86_spec_ctrl_{set_guest,restore_host}
x86/speculation: Rework speculative_store_bypass_update()
x86/speculation: Add virtualized speculative store bypass disable support
x86/bugs, KVM: Extend speculation control for VIRT_SPEC_CTRL
x86/speculation: Handle HT correctly on AMD
x86/cpufeatures: Add FEATURE_ZEN
x86/cpufeatures: Disentangle SSBD enumeration
x86/cpufeatures: Disentangle MSR_SPEC_CTRL enumeration from IBRS
x86/speculation: Use synthetic bits for IBRS/IBPB/STIBP
KVM: SVM: Move spec control call after restore of GS
x86/cpu: Make alternative_msr_write work for 32-bit code
x86/bugs: Fix the parameters alignment and missing void
x86/bugs: Make cpu_show_common() static
...
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Fix some typos, improve formulations, end sentences with a fullstop.
Signed-off-by: Borislav Petkov <bp@suse.de>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
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Unless explicitly opted out of, anything running under seccomp will have
SSB mitigations enabled. Choosing the "prctl" mode will disable this.
[ tglx: Adjusted it to the new arch_seccomp_spec_mitigate() mechanism ]
Signed-off-by: Kees Cook <keescook@chromium.org>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
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For certain use cases it is desired to enforce mitigations so they cannot
be undone afterwards. That's important for loader stubs which want to
prevent a child from disabling the mitigation again. Will also be used for
seccomp(). The extra state preserving of the prctl state for SSB is a
preparatory step for EBPF dymanic speculation control.
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
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Add prctl based control for Speculative Store Bypass mitigation and make it
the default mitigation for Intel and AMD.
Andi Kleen provided the following rationale (slightly redacted):
There are multiple levels of impact of Speculative Store Bypass:
1) JITed sandbox.
It cannot invoke system calls, but can do PRIME+PROBE and may have call
interfaces to other code
2) Native code process.
No protection inside the process at this level.
3) Kernel.
4) Between processes.
The prctl tries to protect against case (1) doing attacks.
If the untrusted code can do random system calls then control is already
lost in a much worse way. So there needs to be system call protection in
some way (using a JIT not allowing them or seccomp). Or rather if the
process can subvert its environment somehow to do the prctl it can already
execute arbitrary code, which is much worse than SSB.
To put it differently, the point of the prctl is to not allow JITed code
to read data it shouldn't read from its JITed sandbox. If it already has
escaped its sandbox then it can already read everything it wants in its
address space, and do much worse.
The ability to control Speculative Store Bypass allows to enable the
protection selectively without affecting overall system performance.
Based on an initial patch from Tim Chen. Completely rewritten.
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Reviewed-by: Konrad Rzeszutek Wilk <konrad.wilk@oracle.com>
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Add two new prctls to control aspects of speculation related vulnerabilites
and their mitigations to provide finer grained control over performance
impacting mitigations.
PR_GET_SPECULATION_CTRL returns the state of the speculation misfeature
which is selected with arg2 of prctl(2). The return value uses bit 0-2 with
the following meaning:
Bit Define Description
0 PR_SPEC_PRCTL Mitigation can be controlled per task by
PR_SET_SPECULATION_CTRL
1 PR_SPEC_ENABLE The speculation feature is enabled, mitigation is
disabled
2 PR_SPEC_DISABLE The speculation feature is disabled, mitigation is
enabled
If all bits are 0 the CPU is not affected by the speculation misfeature.
If PR_SPEC_PRCTL is set, then the per task control of the mitigation is
available. If not set, prctl(PR_SET_SPECULATION_CTRL) for the speculation
misfeature will fail.
PR_SET_SPECULATION_CTRL allows to control the speculation misfeature, which
is selected by arg2 of prctl(2) per task. arg3 is used to hand in the
control value, i.e. either PR_SPEC_ENABLE or PR_SPEC_DISABLE.
The common return values are:
EINVAL prctl is not implemented by the architecture or the unused prctl()
arguments are not 0
ENODEV arg2 is selecting a not supported speculation misfeature
PR_SET_SPECULATION_CTRL has these additional return values:
ERANGE arg3 is incorrect, i.e. it's not either PR_SPEC_ENABLE or PR_SPEC_DISABLE
ENXIO prctl control of the selected speculation misfeature is disabled
The first supported controlable speculation misfeature is
PR_SPEC_STORE_BYPASS. Add the define so this can be shared between
architectures.
Based on an initial patch from Tim Chen and mostly rewritten.
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Reviewed-by: Ingo Molnar <mingo@kernel.org>
Reviewed-by: Konrad Rzeszutek Wilk <konrad.wilk@oracle.com>
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Contemporary high performance processors use a common industry-wide
optimization known as "Speculative Store Bypass" in which loads from
addresses to which a recent store has occurred may (speculatively) see an
older value. Intel refers to this feature as "Memory Disambiguation" which
is part of their "Smart Memory Access" capability.
Memory Disambiguation can expose a cache side-channel attack against such
speculatively read values. An attacker can create exploit code that allows
them to read memory outside of a sandbox environment (for example,
malicious JavaScript in a web page), or to perform more complex attacks
against code running within the same privilege level, e.g. via the stack.
As a first step to mitigate against such attacks, provide two boot command
line control knobs:
nospec_store_bypass_disable
spec_store_bypass_disable=[off,auto,on]
By default affected x86 processors will power on with Speculative
Store Bypass enabled. Hence the provided kernel parameters are written
from the point of view of whether to enable a mitigation or not.
The parameters are as follows:
- auto - Kernel detects whether your CPU model contains an implementation
of Speculative Store Bypass and picks the most appropriate
mitigation.
- on - disable Speculative Store Bypass
- off - enable Speculative Store Bypass
[ tglx: Reordered the checks so that the whole evaluation is not done
when the CPU does not support RDS ]
Signed-off-by: Konrad Rzeszutek Wilk <konrad.wilk@oracle.com>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Reviewed-by: Borislav Petkov <bp@suse.de>
Reviewed-by: Ingo Molnar <mingo@kernel.org>
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Add the sysfs file for the new vulerability. It does not do much except
show the words 'Vulnerable' for recent x86 cores.
Intel cores prior to family 6 are known not to be vulnerable, and so are
some Atoms and some Xeon Phi.
It assumes that older Cyrix, Centaur, etc. cores are immune.
Signed-off-by: Konrad Rzeszutek Wilk <konrad.wilk@oracle.com>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Reviewed-by: Borislav Petkov <bp@suse.de>
Reviewed-by: Ingo Molnar <mingo@kernel.org>
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Pull networking fixes from David Miller:
1) Fix refcounting bug for connections in on-packet scheduling mode of
IPVS, from Julian Anastasov.
2) Set network header properly in AF_PACKET's packet_snd, from Willem
de Bruijn.
3) Fix regressions in 3c59x by converting to generic DMA API. It was
relying upon the hack that the PCI DMA interfaces would accept NULL
for EISA devices. From Christoph Hellwig.
4) Remove RDMA devices before unregistering netdev in QEDE driver, from
Michal Kalderon.
5) Use after free in TUN driver ptr_ring usage, from Jason Wang.
6) Properly check for missing netlink attributes in SMC_PNETID
requests, from Eric Biggers.
7) Set DMA mask before performaing any DMA operations in vmxnet3
driver, from Regis Duchesne.
8) Fix mlx5 build with SMP=n, from Saeed Mahameed.
9) Classifier fixes in bcm_sf2 driver from Florian Fainelli.
10) Tuntap use after free during release, from Jason Wang.
11) Don't use stack memory in scatterlists in tls code, from Matt
Mullins.
12) Not fully initialized flow key object in ipv4 routing code, from
David Ahern.
13) Various packet headroom bug fixes in ip6_gre driver, from Petr
Machata.
14) Remove queues from XPS maps using correct index, from Amritha
Nambiar.
15) Fix use after free in sock_diag, from Eric Dumazet.
* git://git.kernel.org/pub/scm/linux/kernel/git/davem/net: (64 commits)
net: ip6_gre: fix tunnel metadata device sharing.
cxgb4: fix offset in collecting TX rate limit info
net: sched: red: avoid hashing NULL child
sock_diag: fix use-after-free read in __sk_free
sh_eth: Change platform check to CONFIG_ARCH_RENESAS
net: dsa: Do not register devlink for unused ports
net: Fix a bug in removing queues from XPS map
bpf: fix truncated jump targets on heavy expansions
bpf: parse and verdict prog attach may race with bpf map update
bpf: sockmap update rollback on error can incorrectly dec prog refcnt
net: test tailroom before appending to linear skb
net: ip6_gre: Fix ip6erspan hlen calculation
net: ip6_gre: Split up ip6gre_changelink()
net: ip6_gre: Split up ip6gre_newlink()
net: ip6_gre: Split up ip6gre_tnl_change()
net: ip6_gre: Split up ip6gre_tnl_link_config()
net: ip6_gre: Fix headroom request in ip6erspan_tunnel_xmit()
net: ip6_gre: Request headroom in __gre6_xmit()
selftests/bpf: check return value of fopen in test_verifier.c
erspan: fix invalid erspan version.
...
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The micrel KSZ9031 phy has a optional clock pin (CLK125_NDO) which can be
used as reference clock for the MAC unit. The clock signal must meet the
RGMII requirements to ensure the correct data transmission between the
MAC and the PHY. The KSZ9031 phy does not fulfill the duty cycle
requirement if the phy is configured as slave. For a complete
describtion look at the errata sheets: DS80000691D or DS80000692D.
The errata sheet recommends to force the phy into master mode whenever
there is a 1000Base-T link-up as work around. Only set the
"micrel,force-master" property if you use the phy reference clock provided
by CLK125_NDO pin as MAC reference clock in your application.
Attenation, this workaround is only usable if the link partner can
be configured to slave mode for 1000Base-T.
Signed-off-by: Markus Niebel <Markus.Niebel@tqs.de>
[m.felsch@pengutronix.de: fix dt-binding documentation]
[m.felsch@pengutronix.de: use already existing result var for read/write]
[m.felsch@pengutronix.de: add error handling]
[m.felsch@pengutronix.de: add more comments]
Signed-off-by: Marco Felsch <m.felsch@pengutronix.de>
Reviewed-by: Andrew Lunn <andrew@lunn.ch>
Signed-off-by: David S. Miller <davem@davemloft.net>
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git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc
Pull ARM SoC fixes from Olof Johansson:
"A handful of fixes. I've been queuing them up a bit too long so the
list is longer than it otherwise would have been spread out across a
few -rcs.
In general, it's a scattering of fixes across several platforms,
nothing truly serious enough to point out.
There's a slightly larger batch of them for the Davinci platforms due
to work to bring them back to life after some time, so there's a
handful of regressions, some of them going back very far, others more
recent.
There's also a few patches fixing DT on Renesas platforms since they
changed some bindings without remaining backwards compatible,
splitting up describing LVDS as a proper bridge instead of having it
as part of the display unit.
We could push for them to be backwards compatible with old device
trees, but it's likely to regress eventually if nobody's actually
using said compatibility"
* tag 'armsoc-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc: (36 commits)
ARM: davinci: board-dm646x-evm: set VPIF capture card name
ARM: davinci: board-dm646x-evm: pass correct I2C adapter id for VPIF
ARM: davinci: dm646x: fix timer interrupt generation
ARM: keystone: fix platform_domain_notifier array overrun
arm64: dts: exynos: Fix interrupt type for I2S1 device on Exynos5433
ARM: dts: imx51-zii-rdu1: fix touchscreen bindings
firmware: arm_scmi: Use after free in scmi_create_protocol_device()
ARM: dts: cygnus: fix irq type for arm global timer
Revert "ARM: dts: logicpd-som-lv: Fix pinmux controller references"
tee: check shm references are consistent in offset/size
tee: shm: fix use-after-free via temporarily dropped reference
ARM: dts: imx7s: Pass the 'fsl,sec-era' property
ARM: dts: tegra20: Revert "Fix ULPI regression on Tegra20"
ARM: dts: correct missing "compatible" entry for ti81xx SoCs
ARM: OMAP1: ams-delta: fix deferred_fiq handler
arm64: tegra: Make BCM89610 PHY interrupt as active low
ARM: davinci: fix GPIO lookup for I2C
ARM: dts: logicpd-som-lv: Fix pinmux controller references
ARM: dts: logicpd-som-lv: Fix Audio Mute
ARM: dts: logicpd-som-lv: Fix WL127x Startup Issues
...
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mvebu fixes for 4.17 (part 1)
Declare missing clocks needed for network on Armada 8040 base boards
(such as the McBin)
* tag 'mvebu-fixes-4.17-1' of git://git.infradead.org/linux-mvebu:
ARM64: dts: marvell: armada-cp110: Add mg_core_clk for ethernet node
ARM64: dts: marvell: armada-cp110: Add clocks for the xmdio node
Signed-off-by: Olof Johansson <olof@lixom.net>
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Marvell PPv2.2 controller present on CP-110 need the extra "mg_core_clk"
clock to avoid system hangs when powering some network interfaces up.
This issue appeared after a recent clock rework on Armada 7K/8K platforms.
This commit adds the new clock and updates the documentation accordingly.
[gregory.clement: use the real first commit to fix and add the cc:stable
flag]
Fixes: e3af9f7c6ece ("RM64: dts: marvell: armada-cp110: Fix clock resources for various node")
Cc: <stable@vger.kernel.org>
Signed-off-by: Maxime Chevallier <maxime.chevallier@bootlin.com>
Signed-off-by: Gregory CLEMENT <gregory.clement@bootlin.com>
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git://git.kernel.org/pub/scm/linux/kernel/git/powerpc/linux
Pull powerpc fixes from Michael Ellerman:
"Just three commits.
The two cxl ones are not fixes per se, but they modify code that was
added this cycle so that it will work with a recent firmware change.
And then a fix for a recent commit that added sleeps in the NVRAM
code, which needs to be more careful and not sleep if eg. we're called
in the panic() path.
Thanks to Nicholas Piggin, Philippe Bergheaud, Christophe Lombard"
* tag 'powerpc-4.17-6' of git://git.kernel.org/pub/scm/linux/kernel/git/powerpc/linux:
powerpc/powernv: Fix NVRAM sleep in invalid context when crashing
cxl: Report the tunneled operations status
cxl: Set the PBCQ Tunnel BAR register when enabling capi mode
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Failure to synchronize the tunneled operations does not prevent
the initialization of the cxl card. This patch reports the tunneled
operations status via /sys.
Signed-off-by: Philippe Bergheaud <felix@linux.ibm.com>
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
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Pull kvm fixes from Paolo Bonzini:
- ARM/ARM64 locking fixes
- x86 fixes: PCID, UMIP, locking
- improved support for recent Windows version that have a 2048 Hz APIC
timer
- rename KVM_HINTS_DEDICATED CPUID bit to KVM_HINTS_REALTIME
- better behaved selftests
* tag 'for-linus' of git://git.kernel.org/pub/scm/virt/kvm/kvm:
kvm: rename KVM_HINTS_DEDICATED to KVM_HINTS_REALTIME
KVM: arm/arm64: VGIC/ITS save/restore: protect kvm_read_guest() calls
KVM: arm/arm64: VGIC/ITS: protect kvm_read_guest() calls with SRCU lock
KVM: arm/arm64: VGIC/ITS: Promote irq_lock() in update_affinity
KVM: arm/arm64: Properly protect VGIC locks from IRQs
KVM: X86: Lower the default timer frequency limit to 200us
KVM: vmx: update sec exec controls for UMIP iff emulating UMIP
kvm: x86: Suppress CR3_PCID_INVD bit only when PCIDs are enabled
KVM: selftests: exit with 0 status code when tests cannot be run
KVM: hyperv: idr_find needs RCU protection
x86: Delay skip of emulated hypercall instruction
KVM: Extend MAX_IRQ_ROUTES to 4096 for all archs
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KVM_HINTS_DEDICATED seems to be somewhat confusing:
Guest doesn't really care whether it's the only task running on a host
CPU as long as it's not preempted.
And there are more reasons for Guest to be preempted than host CPU
sharing, for example, with memory overcommit it can get preempted on a
memory access, post copy migration can cause preemption, etc.
Let's call it KVM_HINTS_REALTIME which seems to better
match what guests expect.
Also, the flag most be set on all vCPUs - current guests assume this.
Note so in the documentation.
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
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Pull networking fixes from David Miller:
1) Verify lengths of keys provided by the user is AF_KEY, from Kevin
Easton.
2) Add device ID for BCM89610 PHY. Thanks to Bhadram Varka.
3) Add Spectre guards to some ATM code, courtesy of Gustavo A. R.
Silva.
4) Fix infinite loop in NSH protocol code. To Eric Dumazet we are most
grateful for this fix.
5) Line up /proc/net/netlink headers properly. This fix from YU Bo, we
do appreciate.
6) Use after free in TLS code. Once again we are blessed by the
honorable Eric Dumazet with this fix.
7) Fix regression in TLS code causing stalls on partial TLS records.
This fix is bestowed upon us by Andrew Tomt.
8) Deal with too small MTUs properly in LLC code, another great gift
from Eric Dumazet.
9) Handle cached route flushing properly wrt. MTU locking in ipv4, to
Hangbin Liu we give thanks for this.
10) Fix regression in SO_BINDTODEVIC handling wrt. UDP socket demux.
Paolo Abeni, he gave us this.
11) Range check coalescing parameters in mlx4 driver, thank you Moshe
Shemesh.
12) Some ipv6 ICMP error handling fixes in rxrpc, from our good brother
David Howells.
13) Fix kexec on mlx5 by freeing IRQs in shutdown path. Daniel Juergens,
you're the best!
14) Don't send bonding RLB updates to invalid MAC addresses. Debabrata
Benerjee saved us!
15) Uh oh, we were leaking in udp_sendmsg and ping_v4_sendmsg. The ship
is now water tight, thanks to Andrey Ignatov.
16) IPSEC memory leak in ixgbe from Colin Ian King, man we've got holes
everywhere!
17) Fix error path in tcf_proto_create, Jiri Pirko what would we do
without you!
* git://git.kernel.org/pub/scm/linux/kernel/git/davem/net: (92 commits)
net sched actions: fix refcnt leak in skbmod
net: sched: fix error path in tcf_proto_create() when modules are not configured
net sched actions: fix invalid pointer dereferencing if skbedit flags missing
ixgbe: fix memory leak on ipsec allocation
ixgbevf: fix ixgbevf_xmit_frame()'s return type
ixgbe: return error on unsupported SFP module when resetting
ice: Set rq_last_status when cleaning rq
ipv4: fix memory leaks in udp_sendmsg, ping_v4_sendmsg
mlxsw: core: Fix an error handling path in 'mlxsw_core_bus_device_register()'
bonding: send learning packets for vlans on slave
bonding: do not allow rlb updates to invalid mac
net/mlx5e: Err if asked to offload TC match on frag being first
net/mlx5: E-Switch, Include VF RDMA stats in vport statistics
net/mlx5: Free IRQs in shutdown path
rxrpc: Trace UDP transmission failure
rxrpc: Add a tracepoint to log ICMP/ICMP6 and error messages
rxrpc: Fix the min security level for kernel calls
rxrpc: Fix error reception on AF_INET6 sockets
rxrpc: Fix missing start of call timeout
qed: fix spelling mistake: "taskelt" -> "tasklet"
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Document the R-Car V3H (R8A77980) SoC support in the R-Car CAN-FD bindings.
Signed-off-by: Sergei Shtylyov <sergei.shtylyov@cogentembedded.com>
Reviewed-by: Simon Horman <horms+renesas@verge.net.au>
Signed-off-by: Marc Kleine-Budde <mkl@pengutronix.de>
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Document the R-Car V3M (R8A77970) SoC support in the R-Car CAN-FD bindings.
Signed-off-by: Sergei Shtylyov <sergei.shtylyov@cogentembedded.com>
Reviewed-by: Ramesh Shanmugasundaram <ramesh.shanmugasundaram@bp.renesas.com>
Reviewed-by: Simon Horman <horms+renesas@verge.net.au>
Signed-off-by: Marc Kleine-Budde <mkl@pengutronix.de>
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R8A7796 is R-Car M3-W.
Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be>
Reviewed-by: Simon Horman <horms+renesas@verge.net.au>
Signed-off-by: Marc Kleine-Budde <mkl@pengutronix.de>
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git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm
Pull power management fixes from Rafael Wysocki:
"These fix two PCI power management regressions from the 4.13 cycle and
one cpufreq schedutil governor bug introduced during the 4.12 cycle,
drop a stale comment from the schedutil code and fix two mistakes in
docs.
Specifics:
- Restore device_may_wakeup() check in pci_enable_wake() removed
inadvertently during the 4.13 cycle to prevent systems from drawing
excessive power when suspended or off, among other things (Rafael
Wysocki).
- Fix pci_dev_run_wake() to properly handle devices that only can
signal PME# when in the D3cold power state (Kai Heng Feng).
- Fix the schedutil cpufreq governor to avoid using UINT_MAX as the
new CPU frequency in some cases due to a missing check (Rafael
Wysocki).
- Remove a stale comment regarding worker kthreads from the schedutil
cpufreq governor (Juri Lelli).
- Fix a copy-paste mistake in the intel_pstate driver documentation
(Juri Lelli).
- Fix a typo in the system sleep states documentation (Jonathan
Neuschäfer)"
* tag 'pm-4.17-rc5' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm:
PCI / PM: Check device_may_wakeup() in pci_enable_wake()
PCI / PM: Always check PME wakeup capability for runtime wakeup support
cpufreq: schedutil: Avoid using invalid next_freq
cpufreq: schedutil: remove stale comment
PM: docs: intel_pstate: fix Active Mode w/o HWP paragraph
PM: docs: sleep-states: Fix a typo ("includig")
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P-state selection algorithm (powersave or performance) is selected by
echoing the desired choice to scaling_governor sysfs attribute and not
to scaling_cur_freq (as currently stated).
Fix it.
Signed-off-by: Juri Lelli <juri.lelli@redhat.com>
Reviewed-by: Srinivas Pandruvada <srinivas.pandruvada@linux.intel.com>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
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Fix a typo in admin-guide/pm/sleep-states.rst.
Signed-off-by: Jonathan Neuschäfer <j.neuschaefer@gmx.net>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
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git://git.kernel.org/pub/scm/linux/kernel/git/device-mapper/linux-dm
Pull device mapper fixes from Mike Snitzer:
- a stable fix for DM integrity to use kvfree
- fix for a 4.17-rc1 change to dm-bufio's buffer alignment
- fixes for a few sparse warnings
- remove VLA usage in DM mirror target
- improve DM thinp Documentation for the "read_only" feature
* tag 'for-4.17/dm-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/device-mapper/linux-dm:
dm thin: update Documentation to clarify when "read_only" is valid
dm mirror: remove VLA usage
dm: fix some sparse warnings and whitespace in dax methods
dm cache background tracker: fix sparse warning
dm bufio: fix buffer alignment
dm integrity: use kvfree for kvmalloc'd memory
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Due to user confusion, clarify that it doesn't make sense to try to
create a thin-pool with "read_only" mode enabled.
Signed-off-by: Mike Snitzer <snitzer@redhat.com>
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git://git.kernel.org/pub/scm/linux/kernel/git/tj/libata
Pull libata fixes from Tejun Heo:
"An earlier commit to add reset control for embedded ahci controllers
affected some of the hardware specific drivers and got reverted for
now.
Other than that, just per-device workarounds and trivial changes"
* 'for-4.17-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/tj/libata:
driver core: add __printf verification to __ata_ehi_pushv_desc
ata: fix spelling mistake: "directon" -> "direction"
libata: Apply NOLPM quirk for SanDisk SD7UB3Q*G1001 SSDs
libata: Apply NOLPM quirk for SAMSUNG MZMPC128HBFU-000MV SSD
ata: ahci: mvebu: override ahci_stop_engine for mvebu AHCI
libahci: Allow drivers to override stop_engine
Revert "ata: ahci-platform: add reset control support"
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This reverts commit f0f56716fc3e5d547fd7811eb218a30ed0695605.
According to Thierry's view,
https://www.spinics.net/lists/linux-ide/msg55357.html
some hardware-specific drivers already use their own resets,
and the common reset might make a path to occur double controls of resets.
For now, revert the commit that adds reset control support to ahci-platform,
and hold until the solution is confirmed not be affect all hardware-specific
drivers.
Fixes: f0f56716fc3e ("ata: ahci-platform: add reset control support")
Reported-by: Thierry Reding <thierry.reding@gmail.com>
Suggested-by: Hans de Goede <hdegoede@redhat.com>
Acked-by: Hans de Goede <hdegoede@redhat.com>
Signed-off-by: Kunihiko Hayashi <hayashi.kunihiko@socionext.com>
Signed-off-by: Tejun Heo <tj@kernel.org>
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git://git.kernel.org/pub/scm/linux/kernel/git/robh/linux
Pull DeviceTree fixes from Rob Herring:
- fix path to display timing binding
- fix some typos in interrupt-names and clock-names
- fix a resource leak on overlay removal
- add missing documentation for R8A77965 DMA, serial, and net
- cleanup sunxi pinctrl description
- add Kieback & Peter GmbH vendor prefix
* tag 'devicetree-fixes-for-4.17' of git://git.kernel.org/pub/scm/linux/kernel/git/robh/linux:
dt-bindings: panel: lvds: Fix path to display timing bindings
dt-bindings: mvebu-uart: DT fix s/interrupts-names/interrupt-names/
dt-bindings: meson-uart: DT fix s/clocks-names/clock-names/
of: overlay: Stop leaking resources on overlay removal
dtc: checks: drop warning for missing PCI bridge bus-range
dt-bindings: dmaengine: rcar-dmac: document R8A77965 support
dt-bindings: serial: sh-sci: Add support for r8a77965 (H)SCIF
dt-bindings: net: ravb: Add support for r8a77965 SoC
dt-bindings: pinctrl: sunxi: Fix reference to driver
doc: Add vendor prefix for Kieback & Peter GmbH
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Fixes: 14da3ed8dd08c581 ("devicetree/bindings: display: Document common
panel properties")
Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be>
Reviewed-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Signed-off-by: Rob Herring <robh@kernel.org>
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Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be>
Signed-off-by: Rob Herring <robh@kernel.org>
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Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be>
Acked-by: Neil Armstrong <narmstrong@baylibre.com>
Signed-off-by: Rob Herring <robh@kernel.org>
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Only the overlay notifier callbacks have a chance to potentially get
hold of references to those two resources, but they are not supposed to
store them beyond OF_OVERLAY_POST_REMOVE.
Document the overlay notifier API, its constraint regarding pointer
lifetime, and then remove intentional leaks of ovcs->overlay_tree and
ovcs->fdt from free_overlay_changeset.
See also https://lkml.org/lkml/2018/4/23/1063 and following.
Signed-off-by: Jan Kiszka <jan.kiszka@siemens.com>
Reviewed-by: Frank Rowand <frowand.list@gmail.com>
Signed-off-by: Rob Herring <robh@kernel.org>
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Add documentation for r8a77965 compatible string to rcar-dmac device
tree bindings documentation.
Signed-off-by: Jacopo Mondi <jacopo+renesas@jmondi.org>
Reviewed-by: Geert Uytterhoeven <geert+renesas@glider.be>
Reviewed-by: Simon Horman <horms+renesas@verge.net.au>
Signed-off-by: Rob Herring <robh@kernel.org>
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Add documentation for r8a77965 compatible string to Renesas sci-serial
device tree bindings documentation.
Signed-off-by: Jacopo Mondi <jacopo+renesas@jmondi.org>
Reviewed-by: Geert Uytterhoeven <geert+renesas@glider.be>
Signed-off-by: Rob Herring <robh@kernel.org>
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Add documentation for r8a77965 compatible string to renesas ravb device
tree bindings documentation.
Signed-off-by: Jacopo Mondi <jacopo+renesas@jmondi.org>
Reviewed-by: Geert Uytterhoeven <geert+renesas@glider.be>
Reviewed-by: Simon Horman <horms+renesas@verge.net.au>
Acked-by: Sergei Shtylyov <sergei.shtylyov@cogentembedded.com>
Signed-off-by: Rob Herring <robh@kernel.org>
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Bindings describe hardware, not drivers.
Use reference to hardware Allwinner A1X Pin Controller instead driver.
Signed-off-by: Matheus Castello <matheus@castello.eng.br>
Signed-off-by: Rob Herring <robh@kernel.org>
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The 'kiebackpeter' entry has been added to vendor-prefixes.txt to indicate
products from Kieback & Peter GmbH.
Signed-off-by: Lukasz Majewski <lukma@denx.de>
Signed-off-by: Rob Herring <robh@kernel.org>
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git://git.kernel.org/pub/scm/linux/kernel/git/mchehab/linux-media
Pull media fixes from Mauro Carvalho Chehab:
- a trivial one-line fix addressing a PTR_ERR() getting value from a
wrong var at imx driver
- a patch changing my e-mail at the Kernel tree to mchehab@kernel.org.
no code changes
* tag 'media/v4.17-4' of git://git.kernel.org/pub/scm/linux/kernel/git/mchehab/linux-media:
MAINTAINERS & files: Canonize the e-mails I use at files
media: imx-media-csi: Fix inconsistent IS_ERR and PTR_ERR
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From now on, I'll start using my @kernel.org as my development e-mail.
As such, let's remove the entries that point to the old
mchehab@s-opensource.com at MAINTAINERS file.
For the files written with a copyright with mchehab@s-opensource,
let's keep Samsung on their names, using mchehab+samsung@kernel.org,
in order to keep pointing to my employer, with sponsors the work.
For the files written before I join Samsung (on July, 4 2013),
let's just use mchehab@kernel.org.
For bug reports, we can simply point to just kernel.org, as
this will reach my mchehab+samsung inbox anyway.
Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
Signed-off-by: Brian Warner <brian.warner@samsung.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab+samsung@kernel.org>
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Pull networking fixes from David Miller:
1) Various sockmap fixes from John Fastabend (pinned map handling,
blocking in recvmsg, double page put, error handling during redirect
failures, etc.)
2) Fix dead code handling in x86-64 JIT, from Gianluca Borello.
3) Missing device put in RDS IB code, from Dag Moxnes.
4) Don't process fast open during repair mode in TCP< from Yuchung
Cheng.
5) Move address/port comparison fixes in SCTP, from Xin Long.
6) Handle add a bond slave's master into a bridge properly, from
Hangbin Liu.
7) IPv6 multipath code can operate on unitialized memory due to an
assumption that the icmp header is in the linear SKB area. Fix from
Eric Dumazet.
8) Don't invoke do_tcp_sendpages() recursively via TLS, from Dave
Watson.
9) Fix memory leaks in x86-64 JIT, from Daniel Borkmann.
10) RDS leaks kernel memory to userspace, from Eric Dumazet.
11) DCCP can invoke a tasklet on a freed socket, take a refcount. Also
from Eric Dumazet.
* git://git.kernel.org/pub/scm/linux/kernel/git/davem/net: (78 commits)
dccp: fix tasklet usage
smc: fix sendpage() call
net/smc: handle unregistered buffers
net/smc: call consolidation
qed: fix spelling mistake: "offloded" -> "offloaded"
net/mlx5e: fix spelling mistake: "loobpack" -> "loopback"
tcp: restore autocorking
rds: do not leak kernel memory to user land
qmi_wwan: do not steal interfaces from class drivers
ipv4: fix fnhe usage by non-cached routes
bpf: sockmap, fix error handling in redirect failures
bpf: sockmap, zero sg_size on error when buffer is released
bpf: sockmap, fix scatterlist update on error path in send with apply
net_sched: fq: take care of throttled flows before reuse
ipv6: Revert "ipv6: Allow non-gateway ECMP for IPv6"
bpf, x64: fix memleak when not converging on calls
bpf, x64: fix memleak when not converging after image
net/smc: restrict non-blocking connect finish
8139too: Use disable_irq_nosync() in rtl8139_poll_controller()
sctp: fix the issue that the cookie-ack with auth can't get processed
...
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BPF_PROG_TYPE_SK_MSG programs use a 'void *' for both data and the
data_end pointers. Additionally, the verifier ensures that every
accesses into the values is a __u64 read. This correctly maps on
to the BPF 64-bit architecture.
However, to ensure that when building on 32bit architectures that
clang uses correct types the '-target bpf' option _must_ be
specified. To make this clear add a note to the Documentation.
Signed-off-by: John Fastabend <john.fastabend@gmail.com>
Acked-by: Alexei Starovoitov <ast@kernel.org>
Signed-off-by: Daniel Borkmann <daniel@iogearbox.net>
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git://git.kernel.org/pub/scm/linux/kernel/git/dtor/input
Pull input updates from Dmitry Torokhov:
"Just a few driver fixes"
* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/dtor/input:
Input: atmel_mxt_ts - add missing compatible strings to OF device table
Input: atmel_mxt_ts - fix the firmware update
Input: atmel_mxt_ts - add touchpad button mapping for Samsung Chromebook Pro
MAINTAINERS: Rakesh Iyer can't be reached anymore
Input: hideep_ts - fix a typo in Kconfig
Input: alps - fix reporting pressure of v3 trackstick
Input: leds - fix out of bound access
Input: synaptics-rmi4 - fix an unchecked out of memory error path
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Commit af503716ac14 ("i2c: core: report OF style module alias for devices
registered via OF") fixed how the I2C core reports the module alias when
devices are registered via OF.
But the atmel_mxt_ts driver only has an "atmel,maxtouch" compatible in its
OF device ID table, so if a Device Tree is using a different one, autoload
won't be working for the module (the matching works because the I2C device
ID table is used as a fallback).
So add compatible strings for each of the entries in the I2C device table.
Fixes: af503716ac14 ("i2c: core: report OF style module alias for devices registered via OF")
Reported-by: Enric Balletbo i Serra <enric.balletbo@collabora.com>
Signed-off-by: Javier Martinez Canillas <javierm@redhat.com>
Tested-by: Enric Balletbo i Serra <enric.balletbo@collabora.com>
Reviewed-by: Rob Herring <robh@kernel.org>
[dtor: document which compatibles are deprecated and should not be used]
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
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git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
Pull timer fixes from Thomas Gleixner:
"Two fixes from the timer departement:
- Fix a long standing issue in the NOHZ tick code which causes RB
tree corruption, delayed timers and other malfunctions. The cause
for this is code which modifies the expiry time of an enqueued
hrtimer.
- Revert the CLOCK_MONOTONIC/CLOCK_BOOTTIME unification due to
regression reports. Seems userspace _is_ relying on the documented
behaviour despite our hope that it wont"
* 'timers-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
Revert: Unify CLOCK_MONOTONIC and CLOCK_BOOTTIME
tick/sched: Do not mess with an enqueued hrtimer
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Revert commits
92af4dcb4e1c ("tracing: Unify the "boot" and "mono" tracing clocks")
127bfa5f4342 ("hrtimer: Unify MONOTONIC and BOOTTIME clock behavior")
7250a4047aa6 ("posix-timers: Unify MONOTONIC and BOOTTIME clock behavior")
d6c7270e913d ("timekeeping: Remove boot time specific code")
f2d6fdbfd238 ("Input: Evdev - unify MONOTONIC and BOOTTIME clock behavior")
d6ed449afdb3 ("timekeeping: Make the MONOTONIC clock behave like the BOOTTIME clock")
72199320d49d ("timekeeping: Add the new CLOCK_MONOTONIC_ACTIVE clock")
As stated in the pull request for the unification of CLOCK_MONOTONIC and
CLOCK_BOOTTIME, it was clear that we might have to revert the change.
As reported by several folks systemd and other applications rely on the
documented behaviour of CLOCK_MONOTONIC on Linux and break with the above
changes. After resume daemons time out and other timeout related issues are
observed. Rafael compiled this list:
* systemd kills daemons on resume, after >WatchdogSec seconds
of suspending (Genki Sky). [Verified that that's because systemd uses
CLOCK_MONOTONIC and expects it to not include the suspend time.]
* systemd-journald misbehaves after resume:
systemd-journald[7266]: File /var/log/journal/016627c3c4784cd4812d4b7e96a34226/system.journal
corrupted or uncleanly shut down, renaming and replacing.
(Mike Galbraith).
* NetworkManager reports "networking disabled" and networking is broken
after resume 50% of the time (Pavel). [May be because of systemd.]
* MATE desktop dims the display and starts the screensaver right after
system resume (Pavel).
* Full system hang during resume (me). [May be due to systemd or NM or both.]
That happens on debian and open suse systems.
It's sad, that these problems were neither catched in -next nor by those
folks who expressed interest in this change.
Reported-by: Rafael J. Wysocki <rjw@rjwysocki.net>
Reported-by: Genki Sky <sky@genki.is>,
Reported-by: Pavel Machek <pavel@ucw.cz>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Cc: Dmitry Torokhov <dmitry.torokhov@gmail.com>
Cc: John Stultz <john.stultz@linaro.org>
Cc: Jonathan Corbet <corbet@lwn.net>
Cc: Kevin Easton <kevin@guarana.org>
Cc: Linus Torvalds <torvalds@linux-foundation.org>
Cc: Mark Salyzyn <salyzyn@android.com>
Cc: Michael Kerrisk <mtk.manpages@gmail.com>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Petr Mladek <pmladek@suse.com>
Cc: Prarit Bhargava <prarit@redhat.com>
Cc: Sergey Senozhatsky <sergey.senozhatsky@gmail.com>
Cc: Steven Rostedt <rostedt@goodmis.org>
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git://git.kernel.org/pub/scm/linux/kernel/git/wsa/linux
Pull i2c fixes from Wolfram Sang:
- two driver fixes
- better parameter check for the core
- Documentation updates
- part of a tree-wide HAS_DMA cleanup
* 'i2c/for-current' of git://git.kernel.org/pub/scm/linux/kernel/git/wsa/linux:
i2c: sprd: Fix the i2c count issue
i2c: sprd: Prevent i2c accesses after suspend is called
i2c: dev: prevent ZERO_SIZE_PTR deref in i2cdev_ioctl_rdwr()
Documentation/i2c: adopt kernel commenting style in examples
Documentation/i2c: sync docs with current state of i2c-tools
Documentation/i2c: whitespace cleanup
i2c: Remove depends on HAS_DMA in case of platform dependency
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The example I2C code is rewritten to adopt the preferred kernel block
commenting style.
Signed-off-by: Sam Hansen <hansens@google.com>
Signed-off-by: Wolfram Sang <wsa@the-dreams.de>
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Currently, Documentation/i2c/dev-interface describes the use of
i2c_smbus_* helper routines as static inlined functions provided by
linux/i2c-dev.h. Work has been done to refactor the linux/i2c-dev.h file
in the i2c-tools project out into its own library. As a result, these
docs have become stale.
This patch corrects the discrepancy and directs the reader to the
i2c-tools project for more information.
Signed-off-by: Sam Hansen <hansens@google.com>
Signed-off-by: Wolfram Sang <wsa@the-dreams.de>
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This strips trailing whitespace in Documentation/i2c/dev-interface.
Signed-off-by: Sam Hansen <hansens@google.com>
Signed-off-by: Wolfram Sang <wsa@the-dreams.de>
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