Commit Graph

811642 Commits

Author SHA1 Message Date
Linus Torvalds
96f18cb89f Staging driver fixes for 5.0-rc4
Here are some small staging driver fixes for 5.0-rc4.
 
 They resolve some reported bugs and add a new device id for one driver.
 Nothing major at all, but all good to have.
 
 All of these have been in linux-next for a while with no reported
 issues.
 
 Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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Merge tag 'staging-5.0-rc4' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/staging

Pull staging driver fixes from Greg KH:
 "Here are some small staging driver fixes for 5.0-rc4.

  They resolve some reported bugs and add a new device id for one
  driver. Nothing major at all, but all good to have.

  All of these have been in linux-next for a while with no reported
  issues"

* tag 'staging-5.0-rc4' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/staging:
  staging: android: ion: Support cpu access during dma_buf_detach
  staging: rtl8723bs: Fix build error with Clang when inlining is disabled
  staging: rtl8188eu: Add device code for D-Link DWA-121 rev B1
  staging: vchiq: Fix local event signalling
  Staging: wilc1000: unlock on error in init_chip()
  staging: wilc1000: fix memory leak in wilc_add_rx_gtk
  staging: wilc1000: fix registration frame size
2019-01-25 13:02:12 -10:00
Linus Torvalds
473721f9c6 TTY/Serial driver fixes for 5.0-rc4
Here are a number of small tty core and serial driver fixes for 5.0-rc4
 to resolve some reported issues.
 
 Nothing major, the small serial driver fixes, a tty core fixup for a
 crash that was reported, and some good vt fixes from Nicolas Pitre as he
 seems to be auditing that chunk of code a lot lately.
 
 All of these have been in linux-next for a while with no reported
 issues.
 
 Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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Merge tag 'tty-5.0-rc4' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/tty

Pull tty/serial driver fixes from Greg KH:
 "Here are a number of small tty core and serial driver fixes for
  5.0-rc4 to resolve some reported issues.

  Nothing major, the small serial driver fixes, a tty core fixup for a
  crash that was reported, and some good vt fixes from Nicolas Pitre as
  he seems to be auditing that chunk of code a lot lately.

  All of these have been in linux-next for a while with no reported
  issues"

* tag 'tty-5.0-rc4' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/tty:
  serial: fsl_lpuart: fix maximum acceptable baud rate with over-sampling
  tty: serial: qcom_geni_serial: Allow mctrl when flow control is disabled
  tty: Handle problem if line discipline does not have receive_buf
  vgacon: unconfuse vc_origin when using soft scrollback
  vt: invoke notifier on screen size change
  vt: always call notifier with the console lock held
  vt: make vt_console_print() compatible with the unicode screen buffer
  tty/n_hdlc: fix __might_sleep warning
  serial: 8250: Fix serial8250 initialization crash
  uart: Fix crash in uart_write and uart_put_char
2019-01-25 12:58:40 -10:00
Linus Torvalds
b48cef32b6 USB/PHY fixes for 5.0-rc4
Here are a number of small USB and PHY driver fixes for 5.0-rc4.
 
 Nothing major at all, just the usual selection of USB gadget bugfixes,
 some new USB serial driver ids, some SPDX fixes, and some PHY driver
 fixes for reported issues.
 
 All of these have been in linux-next for a while with no reported
 issues.
 
 Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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Merge tag 'usb-5.0-rc4' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb

Pull USB/PHY fixes from Greg KH:
 "Here are a number of small USB and PHY driver fixes for 5.0-rc4.

  Nothing major at all, just the usual selection of USB gadget bugfixes,
  some new USB serial driver ids, some SPDX fixes, and some PHY driver
  fixes for reported issues.

  All of these have been in linux-next for a while with no reported
  issues"

* tag 'usb-5.0-rc4' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb:
  USB: serial: keyspan_usa: add proper SPDX lines for .h files
  USB: EHCI: ehci-mv: add MODULE_DEVICE_TABLE
  USB: leds: fix regression in usbport led trigger
  usb: chipidea: fix static checker warning for NULL pointer
  MAINTAINERS: email address update in MAINTAINERS entries
  USB: usbip: delete README file
  USB: serial: pl2303: add new PID to support PL2303TB
  usb: dwc2: gadget: Fix Remote Wakeup interrupt bit clearing
  phy: ath79-usb: Fix the main reset name to match the DT binding
  phy: ath79-usb: Fix the power on error path
  phy: fix build breakage: add PHY_MODE_SATA
  phy: ti: ensure priv is not null before dereferencing it
  USB: serial: ftdi_sio: fix GPIO not working in autosuspend
  usb: gadget: Potential NULL dereference on allocation error
  usb: dwc3: gadget: Fix the uninitialized link_state when udc starts
  usb: dwc3: gadget: Clear req->needs_extra_trb flag on cleanup
  usb: dwc3: gadget: synchronize_irq dwc irq in suspend
  USB: serial: simple: add Motorola Tetra TPG2200 device id
2019-01-25 12:57:09 -10:00
Marek Szyprowski
ec33745bcc ARM: dts: exynos: Fix pinctrl definition for eMMC RTSN line on Odroid X2/U3
Commit 225da7e65a ("ARM: dts: add eMMC reset line for
exynos4412-odroid-common") added MMC power sequence for eMMC card of
Odroid X2/U3. It reused generic sd1_cd pin control configuration node
and only disabled pull-up. However that time the pinctrl configuration
was not applied during MMC power sequence driver initialization. This
has been changed later by commit d97a1e5d7c ("mmc: pwrseq: convert to
proper platform device").

It turned out then, that the provided pinctrl configuration is not
correct, because the eMMC_RTSN line is being re-configured as 'special
function/card detect function for mmc1 controller' not the simple
'output', thus the power sequence driver doesn't really set the pin
value. This in effect broke the reboot of Odroid X2/U3 boards. Fix this
by providing separate node with eMMC_RTSN pin configuration.

Cc: <stable@vger.kernel.org>
Reported-by: Markus Reichl <m.reichl@fivetechno.de>
Suggested-by: Ulf Hansson <ulf.hansson@linaro.org>
Fixes: 225da7e65a ("ARM: dts: add eMMC reset line for exynos4412-odroid-common")
Signed-off-by: Marek Szyprowski <m.szyprowski@samsung.com>
Signed-off-by: Krzysztof Kozlowski <krzk@kernel.org>
2019-01-25 20:18:10 +01:00
David S. Miller
517952756e Just a few small fixes:
* avoid trying to operate TDLS when not connection,
    this is not valid and led to issues
  * count TTL-dropped frames in mesh better
  * deal with new WiGig channels in regulatory code
  * remove a WARN_ON() that can trigger due to benign
    races during device/driver registration
  * fix nested netlink policy maxattrs (syzkaller)
  * fix hwsim n_limits (syzkaller)
  * propagate __aligned(2) to a surrounding struct
  * return proper error in virt_wifi error path
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Merge tag 'mac80211-for-davem-2019-01-25' of git://git.kernel.org/pub/scm/linux/kernel/git/jberg/mac80211

Johannes Berg says:

====================
Just a few small fixes:
 * avoid trying to operate TDLS when not connection,
   this is not valid and led to issues
 * count TTL-dropped frames in mesh better
 * deal with new WiGig channels in regulatory code
 * remove a WARN_ON() that can trigger due to benign
   races during device/driver registration
 * fix nested netlink policy maxattrs (syzkaller)
 * fix hwsim n_limits (syzkaller)
 * propagate __aligned(2) to a surrounding struct
 * return proper error in virt_wifi error path
====================

Signed-off-by: David S. Miller <davem@davemloft.net>
2019-01-25 10:59:36 -08:00
Gustavo A. R. Silva
b2869f28e1 KVM: x86: Mark expected switch fall-throughs
In preparation to enabling -Wimplicit-fallthrough, mark switch
cases where we are expecting to fall through.

This patch fixes the following warnings:

arch/x86/kvm/lapic.c:1037:27: warning: this statement may fall through [-Wimplicit-fallthrough=]
arch/x86/kvm/lapic.c:1876:3: warning: this statement may fall through [-Wimplicit-fallthrough=]
arch/x86/kvm/hyperv.c:1637:6: warning: this statement may fall through [-Wimplicit-fallthrough=]
arch/x86/kvm/svm.c:4396:6: warning: this statement may fall through [-Wimplicit-fallthrough=]
arch/x86/kvm/mmu.c:4372:36: warning: this statement may fall through [-Wimplicit-fallthrough=]
arch/x86/kvm/x86.c:3835:6: warning: this statement may fall through [-Wimplicit-fallthrough=]
arch/x86/kvm/x86.c:7938:23: warning: this statement may fall through [-Wimplicit-fallthrough=]
arch/x86/kvm/vmx/vmx.c:2015:6: warning: this statement may fall through [-Wimplicit-fallthrough=]
arch/x86/kvm/vmx/vmx.c:1773:6: warning: this statement may fall through [-Wimplicit-fallthrough=]

Warning level 3 was used: -Wimplicit-fallthrough=3

This patch is part of the ongoing efforts to enabling -Wimplicit-fallthrough.

Signed-off-by: Gustavo A. R. Silva <gustavo@embeddedor.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2019-01-25 19:29:36 +01:00
Masahiro Yamada
5cd5548ff4 KVM: x86: fix TRACE_INCLUDE_PATH and remove -I. header search paths
The header search path -I. in kernel Makefiles is very suspicious;
it allows the compiler to search for headers in the top of $(srctree),
where obviously no header file exists.

The reason of having -I. here is to make the incorrectly set
TRACE_INCLUDE_PATH working.

As the comment block in include/trace/define_trace.h says,
TRACE_INCLUDE_PATH should be a relative path to the define_trace.h

Fix the TRACE_INCLUDE_PATH, and remove the iffy include paths.

Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2019-01-25 19:12:37 +01:00
Vitaly Kuznetsov
35b531a1e7 KVM: selftests: check returned evmcs version range
Check that KVM_CAP_HYPERV_ENLIGHTENED_VMCS returns correct version range.

Signed-off-by: Vitaly Kuznetsov <vkuznets@redhat.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2019-01-25 19:11:38 +01:00
Vitaly Kuznetsov
3a2f5773ba x86/kvm/hyper-v: nested_enable_evmcs() sets vmcs_version incorrectly
Commit e2e871ab2f ("x86/kvm/hyper-v: Introduce nested_get_evmcs_version()
helper") broke EVMCS enablement: to set vmcs_version we now call
nested_get_evmcs_version() but this function checks
enlightened_vmcs_enabled flag which is not yet set so we end up returning
zero.

Fix the issue by re-arranging things in nested_enable_evmcs().

Fixes: e2e871ab2f ("x86/kvm/hyper-v: Introduce nested_get_evmcs_version() helper")
Signed-off-by: Vitaly Kuznetsov <vkuznets@redhat.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2019-01-25 19:11:37 +01:00
Sean Christopherson
5ad6ece869 KVM: VMX: Move vmx_vcpu_run()'s VM-Enter asm blob to a helper function
...along with the function's STACK_FRAME_NON_STANDARD tag.  Moving the
asm blob results in a significantly smaller amount of code that is
marked with STACK_FRAME_NON_STANDARD, which makes it far less likely
that gcc will split the function and trigger a spurious objtool warning.
As a bonus, removing STACK_FRAME_NON_STANDARD from vmx_vcpu_run() allows
the bulk of code to be properly checked by objtool.

Because %rbp is not loaded via VMCS fields, vmx_vcpu_run() must manually
save/restore the host's RBP and load the guest's RBP prior to calling
vmx_vmenter().  Modifying %rbp triggers objtool's stack validation code,
and so vmx_vcpu_run() is tagged with STACK_FRAME_NON_STANDARD since it's
impossible to avoid modifying %rbp.

Unfortunately, vmx_vcpu_run() is also a gigantic function that gcc will
split into separate functions, e.g. so that pieces of the function can
be inlined.  Splitting the function means that the compiled Elf file
will contain one or more vmx_vcpu_run.part.* functions in addition to
a vmx_vcpu_run function.  Depending on where the function is split,
objtool may warn about a "call without frame pointer save/setup" in
vmx_vcpu_run.part.* since objtool's stack validation looks for exact
names when whitelisting functions tagged with STACK_FRAME_NON_STANDARD.

Up until recently, the undesirable function splitting was effectively
blocked because vmx_vcpu_run() was tagged with __noclone.  At the time,
__noclone had an unintended side effect that put vmx_vcpu_run() into a
separate optimization unit, which in turn prevented gcc from inlining
the function (or any of its own function calls) and thus eliminated gcc's
motivation to split the function.  Removing the __noclone attribute
allowed gcc to optimize vmx_vcpu_run(), exposing the objtool warning.

Kudos to Qian Cai for root causing that the fnsplit optimization is what
caused objtool to complain.

Fixes: 453eafbe65 ("KVM: VMX: Move VM-Enter + VM-Exit handling to non-inline sub-routines")
Tested-by: Qian Cai <cai@lca.pw>
Cc: Josh Poimboeuf <jpoimboe@redhat.com>
Reported-by: kbuild test robot <lkp@intel.com>
Signed-off-by: Sean Christopherson <sean.j.christopherson@intel.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2019-01-25 19:11:37 +01:00
Ben Gardon
94a980c39c kvm: selftests: Fix region overlap check in kvm_util
Fix a call to userspace_mem_region_find to conform to its spec of
taking an inclusive, inclusive range. It was previously being called
with an inclusive, exclusive range. Also remove a redundant region bounds
check in vm_userspace_mem_region_add. Region overlap checking is already
performed by the call to userspace_mem_region_find.

Tested: Compiled tools/testing/selftests/kvm with -static
	Ran all resulting test binaries on an Intel Haswell test machine
	All tests passed

Signed-off-by: Ben Gardon <bgardon@google.com>
Reviewed-by: Jim Mattson <jmattson@google.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2019-01-25 19:11:36 +01:00
Yi Wang
8997f65700 kvm: vmx: fix some -Wmissing-prototypes warnings
We get some warnings when building kernel with W=1:
arch/x86/kvm/vmx/vmx.c:426:5: warning: no previous prototype for ‘kvm_fill_hv_flush_list_func’ [-Wmissing-prototypes]
arch/x86/kvm/vmx/nested.c:58:6: warning: no previous prototype for ‘init_vmcs_shadow_fields’ [-Wmissing-prototypes]

Make them static to fix this.

Signed-off-by: Yi Wang <wang.yi59@zte.com.cn>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2019-01-25 19:11:35 +01:00
Vitaly Kuznetsov
619ad846fc KVM: nSVM: clear events pending from svm_complete_interrupts() when exiting to L1
kvm-unit-tests' eventinj "NMI failing on IDT" test results in NMI being
delivered to the host (L1) when it's running nested. The problem seems to
be: svm_complete_interrupts() raises 'nmi_injected' flag but later we
decide to reflect EXIT_NPF to L1. The flag remains pending and we do NMI
injection upon entry so it got delivered to L1 instead of L2.

It seems that VMX code solves the same issue in prepare_vmcs12(), this was
introduced with code refactoring in commit 5f3d579997 ("KVM: nVMX: Rework
event injection and recovery").

Signed-off-by: Vitaly Kuznetsov <vkuznets@redhat.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2019-01-25 19:11:35 +01:00
Suravee Suthikulpanit
bb218fbcfa svm: Fix AVIC incomplete IPI emulation
In case of incomplete IPI with invalid interrupt type, the current
SVM driver does not properly emulate the IPI, and fails to boot
FreeBSD guests with multiple vcpus when enabling AVIC.

Fix this by update APIC ICR high/low registers, which also
emulate sending the IPI.

Signed-off-by: Suravee Suthikulpanit <suravee.suthikulpanit@amd.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2019-01-25 19:11:34 +01:00
Suravee Suthikulpanit
37ef0c4414 svm: Add warning message for AVIC IPI invalid target
Print warning message when IPI target ID is invalid due to one of
the following reasons:
  * In logical mode: cluster > max_cluster (64)
  * In physical mode: target > max_physical (512)
  * Address is not present in the physical or logical ID tables

Signed-off-by: Suravee Suthikulpanit <suravee.suthikulpanit@amd.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2019-01-25 19:11:34 +01:00
Sean Christopherson
de81c2f912 KVM: x86: WARN_ONCE if sending a PV IPI returns a fatal error
KVM hypercalls return a negative value error code in case of a fatal
error, e.g. when the hypercall isn't supported or was made with invalid
parameters.  WARN_ONCE on fatal errors when sending PV IPIs as any such
error all but guarantees an SMP system will hang due to a missing IPI.

Fixes: aaffcfd1e8 ("KVM: X86: Implement PV IPIs in linux guest")
Cc: stable@vger.kernel.org
Cc: Wanpeng Li <wanpengli@tencent.com>
Signed-off-by: Sean Christopherson <sean.j.christopherson@intel.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2019-01-25 19:11:33 +01:00
Sean Christopherson
1ed199a41c KVM: x86: Fix PV IPIs for 32-bit KVM host
The recognition of the KVM_HC_SEND_IPI hypercall was unintentionally
wrapped in "#ifdef CONFIG_X86_64", causing 32-bit KVM hosts to reject
any and all PV IPI requests despite advertising the feature.  This
results in all KVM paravirtualized guests hanging during SMP boot due
to IPIs never being delivered.

Fixes: 4180bf1b65 ("KVM: X86: Implement "send IPI" hypercall")
Cc: stable@vger.kernel.org
Cc: Wanpeng Li <wanpengli@tencent.com>
Signed-off-by: Sean Christopherson <sean.j.christopherson@intel.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2019-01-25 19:11:32 +01:00
Vitaly Kuznetsov
f1adceaf01 x86/kvm/hyper-v: recommend using eVMCS only when it is enabled
We shouldn't probably be suggesting using Enlightened VMCS when it's not
enabled (not supported from guest's point of view). Hyper-V on KVM seems
to be fine either way but let's be consistent.

Fixes: 2bc39970e9 ("x86/kvm/hyper-v: Introduce KVM_GET_SUPPORTED_HV_CPUID")
Reviewed-by: Liran Alon <liran.alon@oracle.com>
Signed-off-by: Vitaly Kuznetsov <vkuznets@redhat.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2019-01-25 19:11:25 +01:00
Vitaly Kuznetsov
1998fd32aa x86/kvm/hyper-v: don't recommend doing reset via synthetic MSR
System reset through synthetic MSR is not recommended neither by genuine
Hyper-V nor my QEMU.

Fixes: 2bc39970e9 ("x86/kvm/hyper-v: Introduce KVM_GET_SUPPORTED_HV_CPUID")
Signed-off-by: Vitaly Kuznetsov <vkuznets@redhat.com>
Reviewed-by: Liran Alon <liran.alon@oracle.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2019-01-25 18:53:45 +01:00
Tom Roeder
3a33d030da kvm: x86/vmx: Use kzalloc for cached_vmcs12
This changes the allocation of cached_vmcs12 to use kzalloc instead of
kmalloc. This removes the information leak found by Syzkaller (see
Reported-by) in this case and prevents similar leaks from happening
based on cached_vmcs12.

It also changes vmx_get_nested_state to copy out the full 4k VMCS12_SIZE
in copy_to_user rather than only the size of the struct.

Tested: rebuilt against head, booted, and ran the syszkaller repro
  https://syzkaller.appspot.com/text?tag=ReproC&x=174efca3400000 without
  observing any problems.

Reported-by: syzbot+ded1696f6b50b615b630@syzkaller.appspotmail.com
Fixes: 8fcc4b5923
Cc: stable@vger.kernel.org
Signed-off-by: Tom Roeder <tmroeder@google.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2019-01-25 18:53:10 +01:00
Sean Christopherson
85ba2b165d KVM: VMX: Use the correct field var when clearing VM_ENTRY_LOAD_IA32_PERF_GLOBAL_CTRL
Fix a recently introduced bug that results in the wrong VMCS control
field being updated when applying a IA32_PERF_GLOBAL_CTRL errata.

Fixes: c73da3fcab ("KVM: VMX: Properly handle dynamic VM Entry/Exit controls")
Reported-by: Harald Arnesen <harald@skogtun.org>
Tested-by: Harald Arnesen <harald@skogtun.org>
Signed-off-by: Sean Christopherson <sean.j.christopherson@intel.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2019-01-25 18:52:54 +01:00
Alexander Popov
5cc244a20b KVM: x86: Fix single-step debugging
The single-step debugging of KVM guests on x86 is broken: if we run
gdb 'stepi' command at the breakpoint when the guest interrupts are
enabled, RIP always jumps to native_apic_mem_write(). Then other
nasty effects follow.

Long investigation showed that on Jun 7, 2017 the
commit c8401dda2f ("KVM: x86: fix singlestepping over syscall")
introduced the kvm_run.debug corruption: kvm_vcpu_do_singlestep() can
be called without X86_EFLAGS_TF set.

Let's fix it. Please consider that for -stable.

Signed-off-by: Alexander Popov <alex.popov@linux.com>
Cc: stable@vger.kernel.org
Fixes: c8401dda2f ("KVM: x86: fix singlestepping over syscall")
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2019-01-25 18:52:53 +01:00
Vitaly Kuznetsov
9699f970de x86/kvm/hyper-v: don't announce GUEST IDLE MSR support
HV_X64_MSR_GUEST_IDLE_AVAILABLE appeared in kvm_vcpu_ioctl_get_hv_cpuid()
by mistake: it announces support for HV_X64_MSR_GUEST_IDLE (0x400000F0)
which we don't support in KVM (yet).

Fixes: 2bc39970e9 ("x86/kvm/hyper-v: Introduce KVM_GET_SUPPORTED_HV_CPUID")
Signed-off-by: Vitaly Kuznetsov <vkuznets@redhat.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2019-01-25 18:52:34 +01:00
Chen-Yu Tsai
5553392130
ARM: dts: sun8i-a23-q8: Set compatible string for LCD panel
The Q8 tablets follow the A23/A33 tablet reference design, and normally
use a "generic" 800x480 LCD panel. The actual panel may vary between
production runs, and there are no visible markings denoting its model.
This patch uses a panel that has the same dimensions and timings that
are close to what was provided in the vendor fex files.

Since there are also A33 Q8 tablets with 1024x600 panels, this patch
only sets the compatible string for A23 Q8 tablets.

Signed-off-by: Chen-Yu Tsai <wens@csie.org>
Signed-off-by: Maxime Ripard <maxime.ripard@bootlin.com>
2019-01-25 10:43:20 +01:00
Chen-Yu Tsai
fe244e4c6a
ARM: dts: sun8i-q8-common: Enable display pipeline with RGB LCD panel
The Q8 design for A23/A33 tablets have an 18-bit RGB LCD panel connected
to the LCD interface on the SoC, the DC1SW output on the PMIC providing
power for the LCD, and PH7 toggling the reset pin for the panel.

This patch adds a device node for the panel, describing the above, and
enables the display pipeline.

The actual model or compatible string for the panel should be added in
the tablet device tree file.

Signed-off-by: Chen-Yu Tsai <wens@csie.org>
Signed-off-by: Maxime Ripard <maxime.ripard@bootlin.com>
2019-01-25 10:43:16 +01:00
Chen-Yu Tsai
4672f69561
ARM: dts: sun8i-a23: Add compatible strings to display pipeline device nodes
Now that the compatible strings for the display pipeline on the A23 have
been added to the bindings, add the corresponding compatibles to the
device nodes already in the A23/A33 shared dtsi.

While the A23 has the TCON ch1 clock defined in the CCU, and the channel
1 registers are available, it does not have any means to use channel 1
due to a lack of downstream encoders, and the enable bit for channel 1 is
hard-wired to 0 (off). Hence the ch1 clock is left out.

As the MIPI DSI output device is not officially documented, and there
are no reference devices to test it, it is not covered by this patch.

Signed-off-by: Chen-Yu Tsai <wens@csie.org>
Signed-off-by: Maxime Ripard <maxime.ripard@bootlin.com>
2019-01-25 10:43:12 +01:00
Chen-Yu Tsai
437262c0db
ARM: dts: sun8i-a33: Move display pipeline nodes to a23/a33 common dtsi
The display pipeline has the same structure, resources and connections
on both the A23 and A33. The differences include:

  - compatible strings
  - extra clock, reset control, and IO region for SAT in the backend
    only found on the A33
  - missing ch1 clock for the TCON

However, while the A23 has the TCON ch1 clock defined in the CCU, and
the channel 1 registers are available, it does not have any means to
use channel 1 due to a lack of downstream encoders, and the enable bit
for channel 1 is hard-wired to 0 (off).

As the MIPI DSI output device is not officially documented, and there
are no A23 reference devices to test it, it is not covered by this
patch.

Signed-off-by: Chen-Yu Tsai <wens@csie.org>
Signed-off-by: Maxime Ripard <maxime.ripard@bootlin.com>
2019-01-25 10:43:07 +01:00
Chen-Yu Tsai
d027521497
ARM: dts: sun8i-a23-a33: Move NAND controller device node to sort by address
The NAND controller device node was inserted into the wrong position,
probably due to a rebase or merge, as the file's structure does not
provide enough context for git to accurately match the previous device
node block.

Fixes: d7b843df13 ("ARM: dts: sun8i: add NAND controller node for A23/A33")
Signed-off-by: Chen-Yu Tsai <wens@csie.org>
Signed-off-by: Maxime Ripard <maxime.ripard@bootlin.com>
2019-01-25 10:43:03 +01:00
Chaitanya Tata
93183bdbe7 cfg80211: extend range deviation for DMG
Recently, DMG frequency bands have been extended till 71GHz, so extend
the range check till 20GHz (45-71GHZ), else some channels will be marked
as disabled.

Signed-off-by: Chaitanya Tata <Chaitanya.Tata@bluwireless.co.uk>
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
2019-01-25 10:18:51 +01:00
Chaitanya Tata
faae54ad41 cfg80211: reg: remove warn_on for a normal case
If there are simulatenous queries of regdb, then there might be a case
where multiple queries can trigger request_firmware_no_wait and can have
parallel callbacks being executed asynchronously. In this scenario we
might hit the WARN_ON.

So remove the warn_on, as the code already handles multiple callbacks
gracefully.

Signed-off-by: Chaitanya Tata <chaitanya.tata@bluwireless.co.uk>
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
2019-01-25 10:18:02 +01:00
Mathieu Malaterre
7c53eb5d87 mac80211: Add attribute aligned(2) to struct 'action'
During refactor in commit 9e478066ea ("mac80211: fix MU-MIMO
follow-MAC mode") a new struct 'action' was declared with packed
attribute as:

  struct {
          struct ieee80211_hdr_3addr hdr;
          u8 category;
          u8 action_code;
  } __packed action;

But since struct 'ieee80211_hdr_3addr' is declared with an aligned
keyword as:

  struct ieee80211_hdr {
  	__le16 frame_control;
  	__le16 duration_id;
  	u8 addr1[ETH_ALEN];
  	u8 addr2[ETH_ALEN];
  	u8 addr3[ETH_ALEN];
  	__le16 seq_ctrl;
  	u8 addr4[ETH_ALEN];
  } __packed __aligned(2);

Solve the ambiguity of placing aligned structure in a packed one by
adding the aligned(2) attribute to struct 'action'.

This removes the following warning (W=1):

  net/mac80211/rx.c:234:2: warning: alignment 1 of 'struct <anonymous>' is less than 2 [-Wpacked-not-aligned]

Cc: Johannes Berg <johannes.berg@intel.com>
Suggested-by: Johannes Berg <johannes@sipsolutions.net>
Signed-off-by: Mathieu Malaterre <malat@debian.org>
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
2019-01-25 10:17:25 +01:00
Balaji Pothunoori
7ed5285396 mac80211: don't initiate TDLS connection if station is not associated to AP
Following call trace is observed while adding TDLS peer entry in driver
during TDLS setup.

Call Trace:
[<c1301476>] dump_stack+0x47/0x61
[<c10537d2>] __warn+0xe2/0x100
[<fa22415f>] ? sta_apply_parameters+0x49f/0x550 [mac80211]
[<c1053895>] warn_slowpath_null+0x25/0x30
[<fa22415f>] sta_apply_parameters+0x49f/0x550 [mac80211]
[<fa20ad42>] ? sta_info_alloc+0x1c2/0x450 [mac80211]
[<fa224623>] ieee80211_add_station+0xe3/0x160 [mac80211]
[<c1876fe3>] nl80211_new_station+0x273/0x420
[<c170f6d9>] genl_rcv_msg+0x219/0x3c0
[<c170f4c0>] ? genl_rcv+0x30/0x30
[<c170ee7e>] netlink_rcv_skb+0x8e/0xb0
[<c170f4ac>] genl_rcv+0x1c/0x30
[<c170e8aa>] netlink_unicast+0x13a/0x1d0
[<c170ec18>] netlink_sendmsg+0x2d8/0x390
[<c16c5acd>] sock_sendmsg+0x2d/0x40
[<c16c6369>] ___sys_sendmsg+0x1d9/0x1e0

Fixing this by allowing TDLS setup request only when we have completed
association.

Signed-off-by: Balaji Pothunoori <bpothuno@codeaurora.org>
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
2019-01-25 10:13:22 +01:00
Johannes Berg
a8b5c6d692 nl80211: fix NLA_POLICY_NESTED() arguments
syzbot reported an out-of-bounds read when passing certain
malformed messages into nl80211. The specific place where
this happened isn't interesting, the problem is that nested
policy parsing was referring to the wrong maximum attribute
and thus the policy wasn't long enough.

Fix this by referring to the correct attribute. Since this
is really not necessary, I'll come up with a separate patch
to just pass the policy instead of both, in the common case
we can infer the maxattr from the size of the policy array.

Reported-by: syzbot+4157b036c5f4713b1f2f@syzkaller.appspotmail.com
Cc: stable@vger.kernel.org
Fixes: 9bb7e0f24e ("cfg80211: add peer measurement with FTM initiator API")
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
2019-01-25 09:26:32 +01:00
Thomas Falcon
e95d22c69b ibmveth: Do not process frames after calling napi_reschedule
The IBM virtual ethernet driver's polling function continues
to process frames after rescheduling NAPI, resulting in a warning
if it exhausted its budget. Do not restart polling after calling
napi_reschedule. Instead let frames be processed in the following
instance.

Signed-off-by: Thomas Falcon <tlfalcon@linux.ibm.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2019-01-24 22:48:15 -08:00
Maciej Żenczykowski
3b707c3008 net: dev_is_mac_header_xmit() true for ARPHRD_RAWIP
__bpf_redirect() and act_mirred checks this boolean
to determine whether to prefix an ethernet header.

Signed-off-by: Maciej Żenczykowski <maze@google.com>
Acked-by: Daniel Borkmann <daniel@iogearbox.net>
Signed-off-by: David S. Miller <davem@davemloft.net>
2019-01-24 22:45:34 -08:00
Zhang Run
6eea3527e6 net: usb: asix: ax88772_bind return error when hw_reset fail
The ax88772_bind() should return error code immediately when the PHY
was not reset properly through ax88772a_hw_reset().
Otherwise, The asix_get_phyid() will block when get the PHY
Identifier from the PHYSID1 MII registers through asix_mdio_read()
due to the PHY isn't ready. Furthermore, it will produce a lot of
error message cause system crash.As follows:
asix 1-1:1.0 (unnamed net_device) (uninitialized): Failed to write
 reg index 0x0000: -71
asix 1-1:1.0 (unnamed net_device) (uninitialized): Failed to send
 software reset: ffffffb9
asix 1-1:1.0 (unnamed net_device) (uninitialized): Failed to write
 reg index 0x0000: -71
asix 1-1:1.0 (unnamed net_device) (uninitialized): Failed to enable
 software MII access
asix 1-1:1.0 (unnamed net_device) (uninitialized): Failed to read
 reg index 0x0000: -71
asix 1-1:1.0 (unnamed net_device) (uninitialized): Failed to write
 reg index 0x0000: -71
asix 1-1:1.0 (unnamed net_device) (uninitialized): Failed to enable
 software MII access
asix 1-1:1.0 (unnamed net_device) (uninitialized): Failed to read
 reg index 0x0000: -71
...

Signed-off-by: Zhang Run <zhang.run@zte.com.cn>
Reviewed-by: Yang Wei <yang.wei9@zte.com.cn>
Tested-by: Marcel Ziswiler <marcel.ziswiler@toradex.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2019-01-24 22:33:11 -08:00
Sudarsana Reddy Kalluru
d524e6416a MAINTAINERS: Update cavium networking drivers
Following Marvell's acquisition of Cavium, we need to update all the
Cavium drivers maintainer's entries to point to our new e-mail addresses.

Signed-off-by: Sudarsana Reddy Kalluru <Sudarsana.Kalluru@cavium.com>
Signed-off-by: Ameen Rahman <Ameen.Rahman@cavium.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2019-01-24 22:30:41 -08:00
David S. Miller
b8812920b5 Three patches from Haiyang Zhang to fix settings hash key using ethtool,
and Adrian Vladu's first patch fixing a few spelling mistakes.
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Merge tag 'hyperv-fixes-signed' of git://git.kernel.org/pub/scm/linux/kernel/git/hyperv/linux

Sasha Levin says:

====================
Hyper-V hv_netvsc commits for 5.0

Three patches from Haiyang Zhang to fix settings hash key using ethtool,
and Adrian Vladu's first patch fixing a few spelling mistakes.
====================

Signed-off-by: David S. Miller <davem@davemloft.net>
2019-01-24 22:22:17 -08:00
David S. Miller
9620d6f683 linux-can-fixes-for-5.0-20190122
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Merge tag 'linux-can-fixes-for-5.0-20190122' of git://git.kernel.org/pub/scm/linux/kernel/git/mkl/linux-can

Marc Kleine-Budde says:

====================
pull-request: can 2019-01-22

this is a pull request of 4 patches for net/master.

The first patch by is by Manfred Schlaegl and reverts a patch that caused wrong
warning messages in certain use cases. The next patch is by Oliver Hartkopp for
the bcm that adds sanity checks for the timer value before using it to detect
potential interger overflows. The last two patches are for the flexcan driver,
YueHaibing's patch fixes the the return value in the error path of the
flexcan_setup_stop_mode() function. The second patch is by Uwe Kleine-König and
fixes a NULL pointer deref on older flexcan cores in flexcan_chip_start().
====================

Signed-off-by: David S. Miller <davem@davemloft.net>
2019-01-24 21:52:37 -08:00
David S. Miller
21507dc46a Merge branch 'mlx4_core-fixes'
Tariq Toukan says:

====================
mlx4_core fixes for 5.0-rc

This patchset includes two fixes for the mlx4_core driver.

First patch by Aya fixes inaccurate parsing of some FW fields, mistakenly
including additional (mostly reserved) bits.

Second patch by Jack fixes a wrong (yet harmless) error handling of
calls to copy_to_user() during the CQs init stage.

Series generated against net commit:
49a57857ae Linux 5.0-rc3
====================

Signed-off-by: David S. Miller <davem@davemloft.net>
2019-01-24 21:48:26 -08:00
Jack Morgenstein
ffe4cfc3da net/mlx4_core: Fix error handling when initializing CQ bufs in the driver
Procedure mlx4_init_user_cqes() handles returns by copy_to_user
incorrectly. copy_to_user() returns the number of bytes not copied.
Thus, a non-zero return should be treated as a -EFAULT error
(as is done elsewhere in the kernel). However, mlx4_init_user_cqes()
error handling simply returns the number of bytes not copied
(instead of -EFAULT).

Note, though, that this is a harmless bug: procedure mlx4_alloc_cq()
(which is the only caller of mlx4_init_user_cqes()) treats any
non-zero return as an error, but that returned error value is processed
internally, and not passed further up the call stack.

In addition, fixes the following sparse warning:
warning: incorrect type in argument 1 (different address spaces)
   expected void [noderef] <asn:1>*to
   got void *buf

Fixes: e45678973d ("{net, IB}/mlx4: Initialize CQ buffers in the driver when possible")
Reported by: Dan Carpenter <dan.carpenter@oracle.com>
Signed-off-by: Jack Morgenstein <jackm@dev.mellanox.co.il>
Signed-off-by: Tariq Toukan <tariqt@mellanox.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2019-01-24 21:48:26 -08:00
Aya Levin
a40ded6043 net/mlx4_core: Add masking for a few queries on HCA caps
Driver reads the query HCA capabilities without the corresponding masks.
Without the correct masks, the base addresses of the queues are
unaligned.  In addition some reserved bits were wrongly read.  Using the
correct masks, ensures alignment of the base addresses and allows future
firmware versions safe use of the reserved bits.

Fixes: ab9c17a009 ("mlx4_core: Modify driver initialization flow to accommodate SRIOV for Ethernet")
Fixes: 0ff1fb654b ("{NET, IB}/mlx4: Add device managed flow steering firmware API")
Signed-off-by: Aya Levin <ayal@mellanox.com>
Signed-off-by: Tariq Toukan <tariqt@mellanox.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2019-01-24 21:48:26 -08:00
Bjorn Andersson
734e6d0252 arm64: dts: qcom: qcs404: Add QUP I2C and SPI nodes
Define all six QUP controllers, both as SPI and I2C, allowing boards to
enable these as needed. Associated pinmux states are also defined, to
require only pinconf states to be specified by the boards, as they are
enabled.

Note that SPI has not been tested.

Reviewed-by: Vinod Koul <vkoul@kernel.org>
Signed-off-by: Bjorn Andersson <bjorn.andersson@linaro.org>
Signed-off-by: Andy Gross <andy.gross@linaro.org>
2019-01-24 22:21:35 -06:00
Bjorn Andersson
bf9aa8a471 arm64: dts: qcom: qcs404: Define remaining UARTs
Add the BLSP2 BAM and add the remaining four UARTs found on the QCS404
platform.

Note that these has not been tested.

Reviewed-by: Vinod Koul <vkoul@kernel.org>
Signed-off-by: Bjorn Andersson <bjorn.andersson@linaro.org>
Signed-off-by: Andy Gross <andy.gross@linaro.org>
2019-01-24 22:21:17 -06:00
Bjorn Andersson
5bb9ab94f4 arm64: dts: qcom: qcs404: Specify pinctrl state for UART
BLSP1 UART2 is used as debug uart on the EVB development board, define
pinmux state for the UART in the platform dtsi and pinconf state for it
in the board dts.

Reviewed-by: Vinod Koul <vkoul@kernel.org>
Signed-off-by: Bjorn Andersson <bjorn.andersson@linaro.org>
Signed-off-by: Andy Gross <andy.gross@linaro.org>
2019-01-24 22:21:17 -06:00
Bjorn Andersson
1d918e9a8c arm64: dts: qcom: sdm845: Fix lpasscc reg
Fix up the lpasscc address and size, missed during the conversion to
address- and size-cells of 2.

Reviewed-by: Douglas Anderson <dianders@chromium.org>
Reported-by: Doug Anderson <dianders@chromium.org>
Signed-off-by: Bjorn Andersson <bjorn.andersson@linaro.org>
Signed-off-by: Andy Gross <andy.gross@linaro.org>
2019-01-24 22:21:16 -06:00
Sai Prakash Ranjan
ea0edd7e63 arm64: dts: qcom: sdm845: Remove the duplicate header inclusion
Remove the duplicate inclusion of qcom,gcc-sdm845.h
mistakenly introduced by commit 6e17f81405 ("arm64:
dts: sdm845: add prng-ee node").

Reviewed-by: Douglas Anderson <dianders@chromium.org>
Signed-off-by: Sai Prakash Ranjan <saiprakash.ranjan@codeaurora.org>
[bjorn: Also fix sort order of lpasscc include, while we're there]
Signed-off-by: Bjorn Andersson <bjorn.andersson@linaro.org>

Signed-off-by: Andy Gross <andy.gross@linaro.org>
2019-01-24 22:20:52 -06:00
Sibi Sankar
8ed6d484ec arm64: dts: qcom: sdm845: Add reserve-memory nodes
Add reserve-memory nodes for mpss and mba required for
remoteproc mss pil.

Reviewed-by: Bjorn Andersson <bjorn.andersson@linaro.org>
Reviewed-by: Douglas Anderson <dianders@chromium.org>
Signed-off-by: Sibi Sankar <sibis@codeaurora.org>
Signed-off-by: Bjorn Andersson <bjorn.andersson@linaro.org>
Signed-off-by: Andy Gross <andy.gross@linaro.org>
2019-01-24 22:20:51 -06:00
Evan Green
bc2c806293 arm64: dts: qcom: sdm845: Add gpio-ranges to TLMM node
Add the gpio-ranges property to the TLMM node so that GPIO hogs work.

Reviewed-by: Stephen Boyd <swboyd@chromium.org>
Signed-off-by: Evan Green <evgreen@chromium.org>
Signed-off-by: Bjorn Andersson <bjorn.andersson@linaro.org>
Signed-off-by: Andy Gross <andy.gross@linaro.org>
2019-01-24 22:20:34 -06:00
Bjorn Andersson
9feb667d86 arm64: dts: qcom: sdm845: Extend ranges and describe DMA space
For devices attached to an IOMMU, translation between IOVA and physical
addresses is no longer 1:1 and dma-ranges should be specified to
describe the available IOVA address space.

On SDM845 the busses are implemented with 36 address bits, so dma-ranges
must be defined to reduce the size of the IOVA address space from the 48
bits supported by the SMMU. Without this DMA allocations may end up with
IOVAs outside the valid range, that gets truncated by the bus between
the device and its translation unit.

Also extend ranges to describe the available address space.

Tested-by: Douglas Anderson <dianders@chromium.org>
Reviewed-by: Douglas Anderson <dianders@chromium.org>
Reviewed-by: Stephen Boyd <swboyd@chromium.org>
Signed-off-by: Bjorn Andersson <bjorn.andersson@linaro.org>
Signed-off-by: Andy Gross <andy.gross@linaro.org>
2019-01-24 22:20:34 -06:00