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Compiling the UniPhier DT files with W=1, DTC warns like follows:
Warning (simple_bus_reg): Node /soc/smpctrl@59800000 simple-bus unit address format error, expected "59801000"
Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com>
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Compiling the DT file with W=1, DTC warns like follows:
Warning (unit_address_vs_reg): Node /opp_table0/opp@1000000000 has a
unit name, but no reg property
Fix this by replacing '@' with '-' as the OPP nodes will never have a
"reg" property.
Reported-by: Krzysztof Kozlowski <krzk@kernel.org>
Reported-by: Masahiro Yamada <yamada.masahiro@socionext.com>
Suggested-by: Mark Rutland <mark.rutland@arm.com>
Signed-off-by: Viresh Kumar <viresh.kumar@linaro.org>
Acked-by: Rob Herring <robh@kernel.org>
Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com>
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This patch adds DT bindings info for Broadcom Stingray SOC
and related reference boards.
Signed-off-by: Anup Patel <anup.patel@broadcom.com>
Acked-by: Rob Herring <robh@kernel.org>
Signed-off-by: Florian Fainelli <f.fainelli@gmail.com>
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ls1012a has separate input root clocks for core PLLs versus the platform
PLL, with the latter described as sysclk in the hw docs.
Accordingly, update the clock-frequency in sysclk to 125M as platform
input clock.
Signed-off-by: Scott Wood <oss@buserror.net>
Signed-off-by: Tang Yuantian <andy.tang@nxp.com>
Signed-off-by: Shawn Guo <shawnguo@kernel.org>
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Add "dis_rxdet_inp3_quirk" boolean property to USB3 node. This property
is used to disable rx detection in P3 PHY mode.
Signed-off-by: Ran Wang <ran.wang_1@nxp.com>
Signed-off-by: Shawn Guo <shawnguo@kernel.org>
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Currently SD UHS-I modes were enabled by default on LS208xARDB boards,
but the new LS2088ARDB RevF board didn't support them any more since SDHC
circuit had been reworked. This patch is to disable SD UHS-I modes by default
in case of any issue on LS2088ARDB RevF
Signed-off-by: yinbo.zhu <yinbo.zhu@nxp.com>
Acked-by: Yangbo Lu <yangbo.lu@nxp.com>
Signed-off-by: Shawn Guo <shawnguo@kernel.org>
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into next/dt64
Realtek ARM64 based SoC DT for v4.12
This adds an initial DT for the RTD1295 SoC and a TV box based on it.
* tag 'realtek-arm64-dt-for-4.12' of git://github.com/afaerber/linux:
ARM64: dts: Add Realtek RTD1295 and Zidoo X9S
dt-bindings: arm: Add Realtek RTD1295 bindings
dt-bindings: Add vendor prefix for Zidoo
Signed-off-by: Olof Johansson <olof@lixom.net>
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https://git.kernel.org/pub/scm/linux/kernel/git/horms/renesas into next/dt64
Renesas ARM64 Based SoC DT Updates for v4.13
* Add support for R-Car H3 ES2.0
* Break out common board support
* Set drive-strength for ravb pins for r8a7795/h3ulcb and r8a7796/m3ulcb
* Enable HDMI outputs on r8a7795/salvator-x
* Add R-Car audio to DT of r8a7796 SoC
* Add current sense amplifiers to DT of r8a779[56]/salvator-x
* Enable NFS-root on r8a7796/salvator-x
* Enable HS200 for eMMC on r8a779[56]/salvator-x,
r8a7795/h3ulcb and r8a7796/m3ulcb
* Enable EthernetAVB, I2C r8a7796/m3ulcb
* Update memory node to 2 GiB map on r8a7796/m3ulcb
* tag 'renesas-arm64-dt-for-v4.13' of https://git.kernel.org/pub/scm/linux/kernel/git/horms/renesas: (35 commits)
arm64: dts: r8a7795: salvator-x: Add support for R-Car H3 ES2.0
arm64: dts: r8a7795: Add support for R-Car H3 ES2.0
arm64: dts: ulcb: Set drive-strength for ravb pins
arm64: dts: renesas: r8a7795-salvator-x: Enable HDMI outputs
arm64: dts: renesas: r8a7795-salvator-x: Add DU external dot clocks
arm64: dts: renesas: salvator-x: Add HDMI output connectors
arm64: dts: renesas: salvator-x: Add DU external dot clock sources
arm64: dts: renesas: r8a7795: Add HDMI encoder support
arm64: dts: salvator-x: Add panel backlight support
arm64: dts: r8a7796: Add PWM device nodes
arm64: dts: r8a7796: add Sound MIX support
arm64: dts: r8a7796: add Sound CTU support
arm64: dts: r8a7796: add Sound DVC support
arm64: dts: r8a7796: add Sound SRC support
arm64: dts: r8a7796: add Sound SSI DMA support
arm64: dts: r8a7796: add Sound SSI PIO support
arm64: dts: r8a7796: add AUDIO_DMAC support
arm64: dts: salvator-x: Add current sense amplifiers
arm64: dts: renesas: Extract common ULCB board support
arm64: dts: renesas: Extract common Salvator-X board support
...
Signed-off-by: Olof Johansson <olof@lixom.net>
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All SoCs supported up to now rely on the fallback binding of mt6577.
Fix the binding description to reflect this.
Signed-off-by: Matthias Brugger <matthias.bgg@gmail.com>
Acked-by: Rob Herring <robh@kernel.org>
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This patch adds the SPICC Controller pins nodes for Amlogic GXL SoCs.
Signed-off-by: Neil Armstrong <narmstrong@baylibre.com>
Signed-off-by: Kevin Hilman <khilman@baylibre.com>
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This patch adds the SPICC Controller pins nodes for Amlogic GXBB SoCs.
Signed-off-by: Neil Armstrong <narmstrong@baylibre.com>
Signed-off-by: Kevin Hilman <khilman@baylibre.com>
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The Amlogic Meson GXL SoCs embeds an 10/100 Ethernet PHY, this patchs adds
the Link and Activity LEDs signals pins nodes.
Signed-off-by: Neil Armstrong <narmstrong@baylibre.com>
Signed-off-by: Kevin Hilman <khilman@baylibre.com>
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Add the AO and EE domain CEC pins nodes for the Amlogic Meson GXL SoCs.
Signed-off-by: Neil Armstrong <narmstrong@baylibre.com>
Signed-off-by: Kevin Hilman <khilman@baylibre.com>
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Add the AO and EE domain CEC pins nodes for the Amlogic Meson GXBB SoCs.
Signed-off-by: Neil Armstrong <narmstrong@baylibre.com>
Signed-off-by: Kevin Hilman <khilman@baylibre.com>
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The pull-enable register base was wrongly copied from the meson8b pinctrl node,
but was not used yet.
Fixes: c328666d58aa ("ARM64: dts: amlogic: Add Meson GX dtsi from GXBB")
Signed-off-by: Neil Armstrong <narmstrong@baylibre.com>
Reviewed-by: Jerome Brunet <jbrunet@baylibre.com>
Signed-off-by: Kevin Hilman <khilman@baylibre.com>
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The pull-enable register base was wrongly copied from the GXBB pinctrl node,
but was not used yet.
Fixes: fb0fe92294a9 ("ARM64: dts: meson-gxl: Add pinctrl nodes")
Signed-off-by: Neil Armstrong <narmstrong@baylibre.com>
Reviewed-by: Jerome Brunet <jbrunet@baylibre.com>
Signed-off-by: Kevin Hilman <khilman@baylibre.com>
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The gpio-range was badly added on the GXL dtsi, the AO pin count is 10
instead of 14.
Fixes: 84412e4e857f ("ARM64: dts: meson-gxl: Add gpio-ranges properties")
Signed-off-by: Neil Armstrong <narmstrong@baylibre.com>
Reviewed-by: Jerome Brunet <jbrunet@baylibre.com>
Signed-off-by: Kevin Hilman <khilman@baylibre.com>
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The FriendlyARM NanoPi K2 is a single-board computer.
Cc: techsupport@friendlyarm.com
Signed-off-by: Andreas Färber <afaerber@suse.de>
Signed-off-by: Kevin Hilman <khilman@baylibre.com>
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The FriendlyARM NanoPi K2 is a single-board computer.
Cc: techsupport@friendlyarm.com
Acked-by: Rob Herring <robh@kernel.org>
Signed-off-by: Andreas Färber <afaerber@suse.de>
Signed-off-by: Kevin Hilman <khilman@baylibre.com>
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The R-Box Pro is a TV box derived from Amlogic q200 reference design.
It uses an AP6255 Wifi module. It features an LED tube that lights a
surrounding stripe and the top logo in blue or red or pink'ish - blue
is on by default, and red (i.e., pink) is configured as panic indicator.
This device is available in at least two models, with 2 GB vs. 3 GB RAM
as well as varying eMMC size. The intent is to handle this with a single
.dts that gets the actual RAM size from U-Boot.
Cc: ada@kingnoval.com
Signed-off-by: Andreas Färber <afaerber@suse.de>
Signed-off-by: Kevin Hilman <khilman@baylibre.com>
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Cc: ada@kingnoval.com
Acked-by: Rob Herring <robh@kernel.org>
Signed-off-by: Andreas Färber <afaerber@suse.de>
Signed-off-by: Kevin Hilman <khilman@baylibre.com>
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Their domain name is spelled kingnoval, but textually Kingnovel.
Cc: ada@kingnoval.com
Acked-by: Rob Herring <robh@kernel.org>
Signed-off-by: Andreas Färber <afaerber@suse.de>
Signed-off-by: Kevin Hilman <khilman@baylibre.com>
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The rk3399 has multiple variants with different frequency ratings.
The operating points currently in the kernel stem from the op1 variant
used in Gru ChromeOS devices and may not be suitable for general rk3399
chips. Therefore bring it back to the official general operating points.
Signed-off-by: Heiko Stuebner <heiko@sntech.de>
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The OP1 is a rk3399 variant used in ChromeOS devices with a slightly
higher frequency rating compared to the regular rk3399, but right now
the only available operating points don't match either variant
with both needing adjustments to actually fit their specs.
Therefore introduce separate operting points, from the ChromeOS kernel,
for the OP1 and use it on Gru devices.
Reviewed-by: Douglas Anderson <dianders@chromium.org>
Signed-off-by: Heiko Stuebner <heiko@sntech.de>
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This allows basic usage of usb3 devices but no typec specific things yet.
Signed-off-by: Heiko Stuebner <heiko@sntech.de>
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This is used by bootloaders to override the mac address in the devicetree
if needed.
Signed-off-by: Heiko Stuebner <heiko@sntech.de>
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The power-tree on the rk3399-firefly did not completely match the
documentation and vendor devicetree. It was also missing some
supply-hirarchy information and some regulator-gpio names did not
match the schematics. Fix this for the existing regulators before
introducing new things.
Signed-off-by: Heiko Stuebner <heiko@sntech.de>
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This patch adds sdmmc, sdio, emmc nodes for Rockchip RK3328 SoCs.
Signed-off-by: Shawn Lin <shawn.lin@rock-chips.com>
Signed-off-by: Heiko Stuebner <heiko@sntech.de>
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The CPU clock defined in the Meson GX clock driver is actually a
left-over from the Meson8b clock controller. Un-export the clock so we
can remove it from the driver.
Signed-off-by: Martin Blumenstingl <martin.blumenstingl@googlemail.com>
Signed-off-by: Jerome Brunet <jbrunet@baylibre.com>
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Expose the clock ids of the three none AO uarts to the dt-bindings
Acked-by: Neil Armstrong <narmstrong@baylibre.com>
Signed-off-by: Helmut Klein <hgkr.klein@gmail.com>
Signed-off-by: Neil Armstrong <narmstrong@baylibre.com>
[tidy the commit message to match similar change]
Signed-off-by: Jerome Brunet <jbrunet@baylibre.com>
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Expose the SPICC gate clock to enable the SPICC controller.
Acked-by: Jerome Brunet <jbrunet@baylibre.com>
Signed-off-by: Neil Armstrong <narmstrong@baylibre.com>
[tidy commit message to match similar changes]
Signed-off-by: Jerome Brunet <jbrunet@baylibre.com>
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Expose the spdif master clock and the mux to select the appropriate spdif
clock parent depending on the data source.
Acked-by: Michael Turquette <mturquette@baylibre.com>
Signed-off-by: Jerome Brunet <jbrunet@baylibre.com>
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Expose cts_amclk in the device tree bindings
Acked-by: Michael Turquette <mturquette@baylibre.com>
Signed-off-by: Jerome Brunet <jbrunet@baylibre.com>
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Expose the clock gates required for the spdif output
Acked-by: Michael Turquette <mturquette@baylibre.com>
Signed-off-by: Jerome Brunet <jbrunet@baylibre.com>
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git://git.kernel.org/pub/scm/linux/kernel/git/evalenti/linux-soc-thermal
Pull thermal SoC management fixes from Eduardo Valentin:
- fixes to TI SoC driver, Broadcom, qoriq
- small sparse warning fix on thermal core
* 'fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/evalenti/linux-soc-thermal:
thermal: broadcom: ns-thermal: default on iProc SoCs
ti-soc-thermal: Fix a typo in a comment line
ti-soc-thermal: Delete error messages for failed memory allocations in ti_bandgap_build()
ti-soc-thermal: Use devm_kcalloc() in ti_bandgap_build()
thermal: core: make thermal_emergency_poweroff static
thermal: qoriq: remove useless call for of_thermal_get_trip_points()
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git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/tty
Pull tty/serial fixes from Greg KH:
"Here are some serial and tty fixes for 4.12-rc3. They are a bit bigger
than normal, which is why I had them bake in linux-next for a few
weeks and didn't send them to you for -rc2.
They revert a few of the serdev patches from 4.12-rc1, and bring
things back to how they were in 4.11, to try to make things a bit more
stable there. Rob and Johan both agree that this is the way forward,
so this isn't people squabbling over semantics. Other than that, just
a few minor serial driver fixes that people have had problems with.
All of these have been in linux-next for a few weeks with no reported
issues"
* tag 'tty-4.12-rc3' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/tty:
serial: altera_uart: call iounmap() at driver remove
serial: imx: ensure UCR3 and UFCR are setup correctly
MAINTAINERS/serial: Change maintainer of jsm driver
serial: enable serdev support
tty/serdev: add serdev registration interface
serdev: Restore serdev_device_write_buf for atomic context
serial: core: fix crash in uart_suspend_port
tty: fix port buffer locking
tty: ehv_bytechan: clean up init error handling
serial: ifx6x60: fix use-after-free on module unload
serial: altera_jtaguart: adding iounmap()
serial: exar: Fix stuck MSIs
serial: efm32: Fix parity management in 'efm32_uart_console_get_options()'
serdev: fix tty-port client deregistration
Revert "tty_port: register tty ports with serdev bus"
drivers/tty: 8250: only call fintek_8250_probe when doing port I/O
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git://git.kernel.org/pub/scm/linux/kernel/git/powerpc/linux
Pull powerpc fixes from Michael Ellerman:
"Fix running SPU programs on Cell, and a few other minor fixes.
Thanks to Alistair Popple, Jeremy Kerr, Michael Neuling, Nicholas
Piggin"
* tag 'powerpc-4.12-4' of git://git.kernel.org/pub/scm/linux/kernel/git/powerpc/linux:
powerpc: Add PPC_FEATURE userspace bits for SCV and DARN instructions
powerpc/spufs: Fix hash faults for kernel regions
powerpc: Fix booting P9 hash with CONFIG_PPC_RADIX_MMU=N
powerpc/powernv/npu-dma.c: Fix opal_npu_destroy_context() call
selftests/powerpc: Fix TM resched DSCR test with some compilers
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git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
Pull x86 fixes from Thomas Gleixner:
"A series of fixes for X86:
- The final fix for the end-of-stack issue in the unwinder
- Handle non PAT systems gracefully
- Prevent access to uninitiliazed memory
- Move early delay calaibration after basic init
- Fix Kconfig help text
- Fix a cross compile issue
- Unbreak older make versions"
* 'x86-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
x86/timers: Move simple_udelay_calibration past init_hypervisor_platform
x86/alternatives: Prevent uninitialized stack byte read in apply_alternatives()
x86/PAT: Fix Xorg regression on CPUs that don't support PAT
x86/watchdog: Fix Kconfig help text file path reference to lockup watchdog documentation
x86/build: Permit building with old make versions
x86/unwind: Add end-of-stack check for ftrace handlers
Revert "x86/entry: Fix the end of the stack for newly forked tasks"
x86/boot: Use CROSS_COMPILE prefix for readelf
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git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
Pull timer fixlet from Thomas Gleixner:
"Silence dmesg spam by making the posix cpu timer printks depend on
print_fatal_signals"
* 'timers-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
posix-timers: Make signal printks conditional
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git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
Pull RAS fixes from Thomas Gleixner:
"Two fixlets for RAS:
- Export memory_error() so the NFIT module can utilize it
- Handle memory errors in NFIT correctly"
* 'ras-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
acpi, nfit: Fix the memory error check in nfit_handle_mce()
x86/MCE: Export memory_error()
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git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
Pull perf tooling fixes from Thomas Gleixner:
- Synchronization of tools and kernel headers
- A series of fixes for perf report addressing various failures:
* Handle invalid maps proper
* Plug a memory leak
* Handle frames and callchain order correctly
- Fixes for handling inlines and children mode
* 'perf-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
tools/include: Sync kernel ABI headers with tooling headers
perf tools: Put caller above callee in --children mode
perf report: Do not drop last inlined frame
perf report: Always honor callchain order for inlined nodes
perf script: Add --inline option for debugging
perf report: Fix off-by-one for non-activation frames
perf report: Fix memory leak in addr2line when called by addr2inlines
perf report: Don't crash on invalid maps in `-g srcline` mode
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git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
Pull locking fix from Thomas Gleixner:
"A fix for a state leak which was introduced in the recent rework of
futex/rtmutex interaction"
* 'locking-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
futex,rt_mutex: Fix rt_mutex_cleanup_proxy_lock()
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git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
Pull kthread fix from Thomas Gleixner:
"A single fix which prevents a use after free when kthread fork fails"
* 'core-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
kthread: Fix use-after-free if kthread fork fails
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git://git.kernel.org/pub/scm/linux/kernel/git/rostedt/linux-trace
Pull ftrace fixes from Steven Rostedt:
"There's been a few memory issues found with ftrace.
One was simply a memory leak where not all was being freed that should
have been in releasing a file pointer on set_graph_function.
Then Thomas found that the ftrace trampolines were marked for
read/write as well as execute. To shrink the possible attack surface,
he added calls to set them to ro. Which also uncovered some other
issues with freeing module allocated memory that had its permissions
changed.
Kprobes had a similar issue which is fixed and a selftest was added to
trigger that issue again"
* tag 'trace-v4.12-rc2' of git://git.kernel.org/pub/scm/linux/kernel/git/rostedt/linux-trace:
x86/ftrace: Make sure that ftrace trampolines are not RWX
x86/mm/ftrace: Do not bug in early boot on irqs_disabled in cpu_flush_range()
selftests/ftrace: Add a testcase for many kprobe events
kprobes/x86: Fix to set RWX bits correctly before releasing trampoline
ftrace: Fix memory leak in ftrace_graph_release()
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ftrace use module_alloc() to allocate trampoline pages. The mapping of
module_alloc() is RWX, which makes sense as the memory is written to right
after allocation. But nothing makes these pages RO after writing to them.
Add proper set_memory_rw/ro() calls to protect the trampolines after
modification.
Link: http://lkml.kernel.org/r/alpine.DEB.2.20.1705251056410.1862@nanos
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Signed-off-by: Steven Rostedt (VMware) <rostedt@goodmis.org>
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With function tracing starting in early bootup and having its trampoline
pages being read only, a bug triggered with the following:
kernel BUG at arch/x86/mm/pageattr.c:189!
invalid opcode: 0000 [#1] SMP
Modules linked in:
CPU: 0 PID: 0 Comm: swapper Not tainted 4.12.0-rc2-test+ #3
Hardware name: MSI MS-7823/CSM-H87M-G43 (MS-7823), BIOS V1.6 02/22/2014
task: ffffffffb4222500 task.stack: ffffffffb4200000
RIP: 0010:change_page_attr_set_clr+0x269/0x302
RSP: 0000:ffffffffb4203c88 EFLAGS: 00010046
RAX: 0000000000000046 RBX: 0000000000000000 RCX: 00000001b6000000
RDX: ffffffffb4203d40 RSI: 0000000000000000 RDI: ffffffffb4240d60
RBP: ffffffffb4203d18 R08: 00000001b6000000 R09: 0000000000000001
R10: ffffffffb4203aa8 R11: 0000000000000003 R12: ffffffffc029b000
R13: ffffffffb4203d40 R14: 0000000000000001 R15: 0000000000000000
FS: 0000000000000000(0000) GS:ffff9a639ea00000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: ffff9a636b384000 CR3: 00000001ea21d000 CR4: 00000000000406b0
Call Trace:
change_page_attr_clear+0x1f/0x21
set_memory_ro+0x1e/0x20
arch_ftrace_update_trampoline+0x207/0x21c
? ftrace_caller+0x64/0x64
? 0xffffffffc029b000
ftrace_startup+0xf4/0x198
register_ftrace_function+0x26/0x3c
function_trace_init+0x5e/0x73
tracer_init+0x1e/0x23
tracing_set_tracer+0x127/0x15a
register_tracer+0x19b/0x1bc
init_function_trace+0x90/0x92
early_trace_init+0x236/0x2b3
start_kernel+0x200/0x3f5
x86_64_start_reservations+0x29/0x2b
x86_64_start_kernel+0x17c/0x18f
secondary_startup_64+0x9f/0x9f
? secondary_startup_64+0x9f/0x9f
Interrupts should not be enabled at this early in the boot process. It is
also fine to leave interrupts enabled during this time as there's only one
CPU running, and on_each_cpu() means to only run on the current CPU.
If early_boot_irqs_disabled is set, it is safe to run cpu_flush_range() with
interrupts disabled. Don't trigger a BUG_ON() in that case.
Link: http://lkml.kernel.org/r/20170526093717.0be3b849@gandalf.local.home
Suggested-by: Thomas Gleixner <tglx@linutronix.de>
Signed-off-by: Steven Rostedt (VMware) <rostedt@goodmis.org>
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Add a testcase to test kprobes via ftrace interface
with many concurrent kprobe events.
This tries to add many kprobe events (up to 256) on
kernel functions. To avoid making ftrace-based
kprobes (kprobes on fentry), it skips first N bytes
(on x86 N=5, on ppc or arm N=4) of function entry.
After that, it enables all those events, disable it,
and remove it.
Since the unoptimization buffer reclaiming will
be delayed, after removing events, it will wait
enough time.
Link: http://lkml.kernel.org/r/149577388470.11702.11832460851769204511.stgit@devbox
Signed-off-by: Masami Hiramatsu <mhiramat@kernel.org>
Suggested-by: Steven Rostedt <rostedt@goodmis.org>
Signed-off-by: Steven Rostedt (VMware) <rostedt@goodmis.org>
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Fix kprobes to set(recover) RWX bits correctly on trampoline
buffer before releasing it. Releasing readonly page to
module_memfree() crash the kernel.
Without this fix, if kprobes user register a bunch of kprobes
in function body (since kprobes on function entry usually
use ftrace) and unregister it, kernel hits a BUG and crash.
Link: http://lkml.kernel.org/r/149570868652.3518.14120169373590420503.stgit@devbox
Signed-off-by: Masami Hiramatsu <mhiramat@kernel.org>
Fixes: d0381c81c2f7 ("kprobes/x86: Set kprobes pages read-only")
Signed-off-by: Steven Rostedt (VMware) <rostedt@goodmis.org>
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ftrace_hash is being kfree'ed in ftrace_graph_release(), however the
->buckets field is not. This results in a memory leak that is easily
captured by kmemleak:
unreferenced object 0xffff880038afe000 (size 8192):
comm "trace-cmd", pid 238, jiffies 4294916898 (age 9.736s)
hex dump (first 32 bytes):
00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................
00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................
backtrace:
[<ffffffff815f561e>] kmemleak_alloc+0x4e/0xb0
[<ffffffff8113964d>] __kmalloc+0x12d/0x1a0
[<ffffffff810bf6d1>] alloc_ftrace_hash+0x51/0x80
[<ffffffff810c0523>] __ftrace_graph_open.isra.39.constprop.46+0xa3/0x100
[<ffffffff810c05e8>] ftrace_graph_open+0x68/0xa0
[<ffffffff8114003d>] do_dentry_open.isra.1+0x1bd/0x2d0
[<ffffffff81140df7>] vfs_open+0x47/0x60
[<ffffffff81150f95>] path_openat+0x2a5/0x1020
[<ffffffff81152d6a>] do_filp_open+0x8a/0xf0
[<ffffffff811411df>] do_sys_open+0x12f/0x200
[<ffffffff811412ce>] SyS_open+0x1e/0x20
[<ffffffff815fa6e0>] entry_SYSCALL_64_fastpath+0x13/0x94
[<ffffffffffffffff>] 0xffffffffffffffff
Link: http://lkml.kernel.org/r/20170525152038.7661-1-lhenriques@suse.com
Cc: stable@vger.kernel.org
Fixes: b9b0c831bed2 ("ftrace: Convert graph filter to use hash tables")
Signed-off-by: Luis Henriques <lhenriques@suse.com>
Signed-off-by: Steven Rostedt (VMware) <rostedt@goodmis.org>
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