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If the property is provided and there are no other possibilities to detect
UART clock frequency, use it as a fallback.
Tested-By: Georgii Staroselskii <georgii.staroselskii@emlid.com>
Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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For the platforms which have no clock provider for the sc16is7xx type of UART,
introduce an alternative clock-frequency property which would be used instead.
Cc: Rob Herring <robh+dt@kernel.org>
Cc: devicetree@vger.kernel.org
Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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Add DMA mode support for the Spreadtrum serial controller.
Signed-off-by: Lanqing Liu <lanqing.liu@unisoc.com>
Signed-off-by: Baolin Wang <baolin.wang@linaro.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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This patch adds dmas and dma-names properties for the UART DMA mode.
Signed-off-by: Lanqing Liu <lanqing.liu@unisoc.com>
Signed-off-by: Baolin Wang <baolin.wang@linaro.org>
Reviewed-by: Rob Herring <robh@kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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This patch adds power management for the Spreadtrum serial controller.
Signed-off-by: Lanqing Liu <lanqing.liu@unisoc.com>
Signed-off-by: Baolin Wang <baolin.wang@linaro.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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This patch adds clocks and clocks-names properties, which are used to do
power management for our UART driver.
Reviewed-by: Rob Herring <robh@kernel.org>
Signed-off-by: Lanqing Liu <lanqing.liu@unisoc.com>
Signed-off-by: Baolin Wang <baolin.wang@linaro.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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Fix sparse warning:
drivers/tty/serial/8250/8250_fintek.c:306:6: warning:
symbol 'fintek_8250_set_termios' was not declared. Should it be static?
Signed-off-by: YueHaibing <yuehaibing@huawei.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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Echo "" to /sys/module/kgdboc/parameters/kgdboc will fail with "No such
device” error.
This is caused by function "configure_kgdboc" who init err to ENODEV
when the config is empty (legal input) the code go out with ENODEV
returned.
Fixes: 2dd453168643 ("kgdboc: Fix restrict error")
Signed-off-by: Wentao Wang <witallwang@gmail.com>
Cc: stable <stable@vger.kernel.org>
Acked-by: Daniel Thompson <daniel.thompson@linaro.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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This adds dt-binding documentation of uart for Mediatek MT8183 SoC
Platform.
Signed-off-by: Erin Lo <erin.lo@mediatek.com>
Acked-by: Rob Herring <robh@kernel.org>
Acked-by: Matthias Brugger <matthias.bgg@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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In half-duplex operation, RX should be started after TX completes.
If DMA is used, there is a case when the DMA transfer completes but the
TX FIFO is not emptied, so the RX cannot be restarted just yet.
Use a boolean variable to store this state and rearm TX interrupt mask
to be signaled again that the transfer finished. In interrupt transmit
handler this variable is used to start RX. A warning message is generated
if RX is activated before TX fifo is cleared.
Fixes: b389f173aaa1 ("tty/serial: atmel: RS485 half duplex w/DMA: enable
RX after TX is done")
Signed-off-by: Razvan Stefanescu <razvan.stefanescu@microchip.com>
Acked-by: Richard Genoud <richard.genoud@gmail.com>
Cc: stable <stable@vger.kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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Use a helper function to check that a port needs to use half duplex
communication, replacing several occurrences of multi-line bit checking.
Fixes: b389f173aaa1 ("tty/serial: atmel: RS485 half duplex w/DMA: enable RX after TX is done")
Cc: stable <stable@vger.kernel.org>
Signed-off-by: Razvan Stefanescu <razvan.stefanescu@microchip.com>
Acked-by: Richard Genoud <richard.genoud@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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if platform_driver_register fails, cleanup the allocated resource
gracefully.
Signed-off-by: Mukesh Ojha <mojha@codeaurora.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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When the kernel is compiled with preemption enabled, the URB completion
handler can run in parallel with the work responsible for waking up the
tty layer. If the URB handler sets the EVENT_TTY_WAKEUP bit during the
call to tty_port_tty_wakeup() to signal that there is room for additional
input, it will be cleared at the end of this call. As a result, TX traffic
on the upper layer will be blocked.
This can be seen with a kernel configured with CONFIG_PREEMPT, and a fast
modem connected with PPP running over a USB CDC-ACM port.
Use test_and_clear_bit() instead, which ensures that each wakeup requested
by the URB completion code will trigger a call to tty_port_tty_wakeup().
Fixes: 1aba579f3cf5 cdc-acm: handle read pipe errors
Signed-off-by: Romain Izard <romain.izard.pro@gmail.com>
Cc: stable <stable@vger.kernel.org>
Acked-by: Oliver Neukum <oneukum@suse.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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Andrii Nakryiko says:
====================
This patch set fixes bug in btf_dedup_is_equiv() check mishandling equivalence
comparison between VOID kind in candidate type graph versus anonymous non-VOID
kind in canonical type graph.
Patch #1 fixes bug, by comparing candidate and canonical kinds for equality,
before proceeding to kind-specific checks.
Patch #2 adds a test case testing this specific scenario.
====================
Signed-off-by: Alexei Starovoitov <ast@kernel.org>
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This patch adds specific test exposing bug in btf_dedup_is_equiv() when
comparing candidate VOID type to a non-VOID canonical type. It's
important for canonical type to be anonymous, otherwise name equality
check will do the right thing and will exit early.
Signed-off-by: Andrii Nakryiko <andriin@fb.com>
Signed-off-by: Alexei Starovoitov <ast@kernel.org>
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btf_dedup_is_equiv() used to compare btf_type->info fields, before doing
kind-specific equivalence check. This comparsion implicitly verified
that candidate and canonical types are of the same kind. With enum fwd
resolution logic this check couldn't be done generically anymore, as for
enums info contains vlen, which differs between enum fwd and
fully-defined enum, so this check was subsumed by kind-specific
equivalence checks.
This change caused btf_dedup_is_equiv() to let through VOID vs other
types check to reach switch, which was never meant to be handing VOID
kind, as VOID kind is always pre-resolved to itself and is only
equivalent to itself, which is checked early in btf_dedup_is_equiv().
This change adds back BTF kind equality check in place of more generic
btf_type->info check, still defering further kind-specific checks to
a per-kind switch.
Fixes: 9768095ba97c ("btf: resolve enum fwds in btf_dedup")
Signed-off-by: Andrii Nakryiko <andriin@fb.com>
Signed-off-by: Alexei Starovoitov <ast@kernel.org>
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Since commit
ad67b74d2469 ("printk: hash addresses printed with %p")
at boot "____ptrval____" is printed instead of the trampoline addresses:
Base memory trampoline at [(____ptrval____)] 99000 size 24576
Remove the print as we don't want to leak kernel addresses and this
statement is not needed anymore.
Fixes: ad67b74d2469d9b8 ("printk: hash addresses printed with %p")
Signed-off-by: Matteo Croce <mcroce@redhat.com>
Signed-off-by: Borislav Petkov <bp@suse.de>
Cc: "H. Peter Anvin" <hpa@zytor.com>
Cc: Ingo Molnar <mingo@redhat.com>
Cc: Thomas Gleixner <tglx@linutronix.de>
Cc: x86-ml <x86@kernel.org>
Link: https://lkml.kernel.org/r/20190326203046.20787-1-mcroce@redhat.com
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If we use the "i2c-" prefix for the binding documentation file name,
then it should match the file name of the driver, if possible. It is
possible for this driver, so rename it.
Signed-off-by: Wolfram Sang <wsa@the-dreams.de>
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If we use the "i2c-" prefix for the binding documentation file name,
then it should match the file name of the driver, if possible. It is
possible for this driver, so rename it.
Signed-off-by: Wolfram Sang <wsa@the-dreams.de>
Acked-by: Maxime Ripard <maxime.ripard@bootlin.com>
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If we use the "i2c-" prefix for the binding documentation file name,
then it should match the file name of the driver, if possible. It is
possible for this driver, so rename it.
Signed-off-by: Wolfram Sang <wsa@the-dreams.de>
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If we use the "i2c-" prefix for the binding documentation file name,
then it should match the file name of the driver, if possible. It is
possible for this driver, so rename it.
Signed-off-by: Wolfram Sang <wsa@the-dreams.de>
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If we use the "i2c-" prefix for the binding documentation file name,
then it should match the file name of the driver, if possible. It is
possible for this driver, so rename it.
Signed-off-by: Wolfram Sang <wsa@the-dreams.de>
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Similar to commit edfc3722cfef ("HID: quirks: Fix keyboard + touchpad on
Toshiba Click Mini not working"), the Lenovo Miix 630 has a combo
keyboard/touchpad device with vid:pid of 04F3:0400, which is shared with
Elan touchpads. The combo on the Miix 630 has an ACPI id of QTEC0001,
which is not claimed by the elan_i2c driver, so key on that similar to
what was done for the Toshiba Click Mini.
Signed-off-by: Jeffrey Hugo <jeffrey.l.hugo@gmail.com>
Signed-off-by: Jiri Kosina <jkosina@suse.cz>
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The declarations related to immovable memory handling are out of the
BOOT_COMPRESSED_MISC_H #ifdef scope, wrap them inside.
Signed-off-by: Baoquan He <bhe@redhat.com>
Signed-off-by: Borislav Petkov <bp@suse.de>
Cc: Chao Fan <fanc.fnst@cn.fujitsu.com>
Cc: "H. Peter Anvin" <hpa@zytor.com>
Cc: Ingo Molnar <mingo@redhat.com>
Cc: Juergen Gross <jgross@suse.com>
Cc: "Kirill A. Shutemov" <kirill.shutemov@linux.intel.com>
Cc: Thomas Gleixner <tglx@linutronix.de>
Cc: Tom Lendacky <thomas.lendacky@amd.com>
Cc: x86-ml <x86@kernel.org>
Link: https://lkml.kernel.org/r/20190304055546.18566-1-bhe@redhat.com
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If CONFIG_OMAP4_DSS_HDMI_CEC is enabled in .config, deeper SoC idle
states are blocked because the CEC clock gets always enabled on init.
Let's fix the issue by moving the CEC clock handling to happen later in
hdmi_cec_adap_enable() as suggested by Hans Verkuil <hverkuil@xs4all.nl>.
This way the CEC clock gets only enabled when needed. This can be tested
by doing cec-ctl --playback to enable the CEC, and doing cec-ctl --clear
to disable it.
Let's also fix the typo for "divider" in the comments while at it.
Fixes: 8d7f934df8d8 ("omapdrm: hdmi4_cec: add OMAP4 HDMI CEC support")
Suggested-by: Hans Verkuil <hverkuil@xs4all.nl>
Cc: Hans Verkuil <hverkuil@xs4all.nl>
Cc: Jyri Sarha <jsarha@ti.com>
Cc: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Signed-off-by: Tony Lindgren <tony@atomide.com>
Reviewed-by: Hans Verkuil <hverkuil-cisco@xs4all.nl>
Signed-off-by: Tomi Valkeinen <tomi.valkeinen@ti.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20190326151438.32414-1-tony@atomide.com
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Fix spelling mistake: "lenght" -> "length"
Signed-off-by: Matteo Croce <mcroce@redhat.com>
Signed-off-by: Tomi Valkeinen <tomi.valkeinen@ti.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20190107130934.9997-1-mcroce@redhat.com
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The debugfs read callback must advance ppos or users using read() on
the file descriptor will never get the EOL. This wasn't spotted before
as I was using busybox cat for testing which uses sendfile() internally
and only noticed it now when switched to cat from coreutils.
Fixes: 2a9e27408e12 ("gpio: mockup: rework debugfs interface")
Signed-off-by: Bartosz Golaszewski <bgolaszewski@baylibre.com>
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gpio-aspeed implements support for PIN_CONFIG_INPUT_DEBOUNCE. As of
v5.1-rc1 we're seeing the following when booting a Romulus BMC kernel:
> [ 21.373137] ------------[ cut here ]------------
> [ 21.374545] WARNING: CPU: 0 PID: 1 at drivers/gpio/gpio-aspeed.c:834 unregister_allocated_timer+0x38/0x94
> [ 21.376181] No timer allocated to offset 74
> [ 21.377672] CPU: 0 PID: 1 Comm: swapper Not tainted 5.1.0-rc1-dirty #6
> [ 21.378800] Hardware name: Generic DT based system
> [ 21.379965] Backtrace:
> [ 21.381024] [<80107d44>] (dump_backtrace) from [<80107f78>] (show_stack+0x20/0x24)
> [ 21.382713] r7:8038b720 r6:00000009 r5:00000000 r4:87897c64
> [ 21.383815] [<80107f58>] (show_stack) from [<80656398>] (dump_stack+0x20/0x28)
> [ 21.385042] [<80656378>] (dump_stack) from [<80115f1c>] (__warn.part.3+0xb4/0xdc)
> [ 21.386253] [<80115e68>] (__warn.part.3) from [<80115fb0>] (warn_slowpath_fmt+0x6c/0x90)
> [ 21.387471] r6:00000342 r5:807f8758 r4:80a07008
> [ 21.388278] [<80115f48>] (warn_slowpath_fmt) from [<8038b720>] (unregister_allocated_timer+0x38/0x94)
> [ 21.389809] r3:0000004a r2:807f8774
> [ 21.390526] r7:00000000 r6:0000000a r5:60000153 r4:0000004a
> [ 21.391601] [<8038b6e8>] (unregister_allocated_timer) from [<8038baac>] (aspeed_gpio_set_config+0x330/0x48c)
> [ 21.393248] [<8038b77c>] (aspeed_gpio_set_config) from [<803840b0>] (gpiod_set_debounce+0xe8/0x114)
> [ 21.394745] r10:82ee2248 r9:00000000 r8:87b63a00 r7:00001388 r6:87947320 r5:80729310
> [ 21.396030] r4:879f64a0
> [ 21.396499] [<80383fc8>] (gpiod_set_debounce) from [<804b4350>] (gpio_keys_probe+0x69c/0x8e0)
> [ 21.397715] r7:845d94b8 r6:00000001 r5:00000000 r4:87b63a1c
> [ 21.398618] [<804b3cb4>] (gpio_keys_probe) from [<8040eeec>] (platform_dev_probe+0x44/0x80)
> [ 21.399834] r10:00000003 r9:80a3a8b0 r8:00000000 r7:00000000 r6:80a7f9dc r5:80a3a8b0
> [ 21.401163] r4:8796bc10
> [ 21.401634] [<8040eea8>] (platform_drv_probe) from [<8040d0d4>] (really_probe+0x208/0x3dc)
> [ 21.402786] r5:80a7f8d0 r4:8796bc10
> [ 21.403547] [<8040cecc>] (really_probe) from [<8040d7a4>] (driver_probe_device+0x130/0x170)
> [ 21.404744] r10:0000007b r9:8093683c r8:00000000 r7:80a07008 r6:80a3a8b0 r5:8796bc10
> [ 21.405854] r4:80a3a8b0
> [ 21.406324] [<8040d674>] (driver_probe_device) from [<8040da8c>] (device_driver_attach+0x68/0x70)
> [ 21.407568] r9:8093683c r8:00000000 r7:80a07008 r6:80a3a8b0 r5:00000000 r4:8796bc10
> [ 21.408877] [<8040da24>] (device_driver_attach) from [<8040db14>] (__driver_attach+0x80/0x150)
> [ 21.410327] r7:80a07008 r6:8796bc10 r5:00000001 r4:80a3a8b0
> [ 21.411294] [<8040da94>] (__driver_attach) from [<8040b20c>] (bus_for_each_dev+0x80/0xc4)
> [ 21.412641] r7:80a07008 r6:8040da94 r5:80a3a8b0 r4:87966f30
> [ 21.413580] [<8040b18c>] (bus_for_each_dev) from [<8040dc0c>] (driver_attach+0x28/0x30)
> [ 21.414943] r7:00000000 r6:87b411e0 r5:80a33fc8 r4:80a3a8b0
> [ 21.415927] [<8040dbe4>] (driver_attach) from [<8040bbf0>] (bus_add_driver+0x14c/0x200)
> [ 21.417289] [<8040baa4>] (bus_add_driver) from [<8040e2b4>] (driver_register+0x84/0x118)
> [ 21.418652] r7:80a60ae0 r6:809226b8 r5:80a07008 r4:80a3a8b0
> [ 21.419652] [<8040e230>] (driver_register) from [<8040fc28>] (__platform_driver_register+0x3c/0x50)
> [ 21.421193] r5:80a07008 r4:809525f8
> [ 21.421990] [<8040fbec>] (__platform_driver_register) from [<809226d8>] (gpio_keys_init+0x20/0x28)
> [ 21.423447] [<809226b8>] (gpio_keys_init) from [<8090128c>] (do_one_initcall+0x80/0x180)
> [ 21.424886] [<8090120c>] (do_one_initcall) from [<80901538>] (kernel_init_freeable+0x1ac/0x26c)
> [ 21.426354] r8:80a60ae0 r7:80a60ae0 r6:8093685c r5:00000008 r4:809525f8
> [ 21.427579] [<8090138c>] (kernel_init_freeable) from [<8066d9a0>] (kernel_init+0x18/0x11c)
> [ 21.428819] r10:00000000 r9:00000000 r8:00000000 r7:00000000 r6:00000000 r5:8066d988
> [ 21.429947] r4:00000000
> [ 21.430415] [<8066d988>] (kernel_init) from [<801010e8>] (ret_from_fork+0x14/0x2c)
> [ 21.431666] Exception stack(0x87897fb0 to 0x87897ff8)
> [ 21.432877] 7fa0: 00000000 00000000 00000000 00000000
> [ 21.434446] 7fc0: 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000
> [ 21.436052] 7fe0: 00000000 00000000 00000000 00000000 00000013 00000000
> [ 21.437308] r5:8066d988 r4:00000000
> [ 21.438102] ---[ end trace d7d7ac3a80567d0e ]---
We only hit unregister_allocated_timer() if the argument to
aspeed_gpio_set_config() is 0, but we can't be calling through
gpiod_set_debounce() from gpio_keys_probe() unless the gpio-keys button has a
non-zero debounce interval.
Commit 6581eaf0e890 ("gpio: use new gpio_set_config() helper in more places")
spreads the use of gpio_set_config() to the debounce and transitory
state configuration paths. The implementation of gpio_set_config() is:
> static int gpio_set_config(struct gpio_chip *gc, unsigned offset,
> enum pin_config_param mode)
> {
> unsigned long config = { PIN_CONF_PACKED(mode, 0) };
>
> return gc->set_config ? gc->set_config(gc, offset, config) : -ENOTSUPP;
> }
Here it packs its own config value with a fixed argument of 0; this is
incorrect behaviour for implementing the debounce and transitory functions, and
the debounce and transitory gpio_set_config() call-sites now have an undetected
type mismatch as they both already pack their own config parameter (i.e. what
gets passed is not an `enum pin_config_param`). Indeed this can be seen in the
small diff for 6581eaf0e890:
> diff --git a/drivers/gpio/gpiolib.c b/drivers/gpio/gpiolib.c
> index de595fa31a1a..1f239aac43df 100644
> --- a/drivers/gpio/gpiolib.c
> +++ b/drivers/gpio/gpiolib.c
> @@ -2725,7 +2725,7 @@ int gpiod_set_debounce(struct gpio_desc *desc, unsigned debounce)
> }
>
> config = pinconf_to_config_packed(PIN_CONFIG_INPUT_DEBOUNCE, debounce);
> - return chip->set_config(chip, gpio_chip_hwgpio(desc), config);
> + return gpio_set_config(chip, gpio_chip_hwgpio(desc), config);
> }
> EXPORT_SYMBOL_GPL(gpiod_set_debounce);
>
> @@ -2762,7 +2762,7 @@ int gpiod_set_transitory(struct gpio_desc *desc, bool transitory)
> packed = pinconf_to_config_packed(PIN_CONFIG_PERSIST_STATE,
> !transitory);
> gpio = gpio_chip_hwgpio(desc);
> - rc = chip->set_config(chip, gpio, packed);
> + rc = gpio_set_config(chip, gpio, packed);
> if (rc == -ENOTSUPP) {
> dev_dbg(&desc->gdev->dev, "Persistence not supported for GPIO %d\n",
> gpio);
Revert commit 6581eaf0e890 ("gpio: use new gpio_set_config() helper in
more places") to restore correct behaviour for gpiod_set_debounce() and
gpiod_set_transitory().
Cc: Thomas Petazzoni <thomas.petazzoni@bootlin.com>
Signed-off-by: Andrew Jeffery <andrew@aj.id.au>
Signed-off-by: Bartosz Golaszewski <bgolaszewski@baylibre.com>
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The live_context() function returns error pointers. It never returns
NULL.
Fixes: 9c1477e83e62 ("drm/i915/selftests: Exercise adding requests to a full GGTT")
Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com>
Reviewed-by: Mika Kuoppala <mika.kuoppala@linux.intel.com>
Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
Link: https://patchwork.freedesktop.org/patch/msgid/20190326050843.GA20038@kadam
(cherry picked from commit 602cbe8efc523ba56e1f41e8f74c7aa835672593)
Signed-off-by: Jani Nikula <jani.nikula@intel.com>
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The Linux RISC-V 32bit kernel is broken after we moved setup_vm() from
kernel/setup.c to mm/init.c because Linux RISC-V 32bit kernel by default
uses cmodel=medlow which results in a non-position-independent setup_vm().
This patch fixes Linux RISC-V 32bit kernel booting by:
1. Forcing cmodel=medany for mm/init.c
2. Moving remaing MM-related stuff va_pa_offset, pfn_base and
empty_zero_page from kernel/setup.c to mm/init.c
Further, the setup_vm() cannot handle GCC instrumentation for FTRACE so
we disable it for mm/init.c by not using "-pg" compiler flag.
Fixes: 6f1e9e946f0b ("RISC-V: Move setup_vm() to mm/init.c")
Suggested-by: Christoph Hellwig <hch@lst.de>
Suggested-by: Mike Rapoport <rppt@linux.ibm.com>
Signed-off-by: Anup Patel <anup.patel@wdc.com>
Reviewed-by: Mike Rapoport <rppt@linux.ibm.com>
Reviewed-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: Palmer Dabbelt <palmer@sifive.com>
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A memory save operation to 8-byte variable in RV32 is divided into
two sw instructions in the put_user macro. The current fixup returns
execution flow to the second sw instead of the one after it.
This patch fixes this fixup code according to the load access part.
Signed-off-by: Alan Kao<alankao@andestech.com>
Cc: Greentime Hu <greentime@andestech.com>
Cc: Vincent Chen <deanbo422@gmail.com>
Signed-off-by: Palmer Dabbelt <palmer@sifive.com>
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According to HUT 1.12 usage 0xb5 from the generic desktop page is reserved
for switching between external and internal display, so let's add the
mapping.
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
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According to HUT 1.12 usage 0x232 from the consumer page is reserved for
switching application between full screen and windowed mode, so let's add
the mapping.
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
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According to HUTRR73 usages 0x79, 0x7a and 0x7c from the consumer page
correspond to Brightness Up/Down/Toggle keys, so let's add the mappings.
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
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According to HUTRR77 usage 0x29f from the consumer page is reserved for
the Desktop application to present all running user’s application windows.
Linux defines KEY_SCALE to request Compiz Scale (Expose) mode, so let's
add the mapping.
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
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According to HUTRR37 usage 0x6d from the consumer usage page corresponds
to action that selects the next available supported aspect ratio option
on a device which outputs or displays video. However KEY_ZOOM means
activate "Full Screen" mode, KEY_ASPECT_RATIO should be used instead.
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
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We defined better names for keys to activate full screen mode or
change aspect ratio (while keeping the existing keycodes to avoid
breaking userspace), so let's use them in the document.
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
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It is hard to say what KEY_SCREEN and KEY_ZOOM mean, but historically DVB
folks have used them to indicate switch to full screen mode. Later, they
converged on using KEY_ZOOM to switch into full screen mode and KEY)SCREEN
to control aspect ratio (see Documentation/media/uapi/rc/rc-tables.rst).
Let's commit to these uses, and define:
- KEY_FULL_SCREEN (and make KEY_ZOOM its alias)
- KEY_ASPECT_RATIO (and make KEY_SCREEN its alias)
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
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There are many Lenovo laptops which need elan_i2c support, this patch adds
relevant IDs to the Elan driver so that touchpads are recognized.
Signed-off-by: KT Liao <kt.liao@emc.com.tw>
Cc: stable@vger.kernel.org
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
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In cpu_to_drc_index() in the case when FW_FEATURE_DRC_INFO is absent,
we currently use of_read_property() to obtain the pointer to the array
corresponding to the property "ibm,drc-indexes". The elements of this
array are of type __be32, but are accessed without any conversion to
the OS-endianness, which is buggy on a Little Endian OS.
Fix this by using of_property_read_u32_index() accessor function to
safely read the elements of the array.
Fixes: e83636ac3334 ("pseries/drc-info: Search DRC properties for CPU indexes")
Cc: stable@vger.kernel.org # v4.16+
Reported-by: Pavithra R. Prakash <pavrampu@in.ibm.com>
Signed-off-by: Gautham R. Shenoy <ego@linux.vnet.ibm.com>
Reviewed-by: Vaidyanathan Srinivasan <svaidy@linux.vnet.ibm.com>
[mpe: Make the WARN_ON a WARN_ON_ONCE so it's not retriggerable]
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
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Syzkaller report this:
kasan: GPF could be caused by NULL-ptr deref or user memory access
general protection fault: 0000 [#1] SMP KASAN PTI
CPU: 0 PID: 4378 Comm: syz-executor.0 Tainted: G C 5.0.0+ #5
Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.10.2-1ubuntu1 04/01/2014
RIP: 0010:__lock_acquire+0x95b/0x3200 kernel/locking/lockdep.c:3573
Code: 00 0f 85 28 1e 00 00 48 81 c4 08 01 00 00 5b 5d 41 5c 41 5d 41 5e 41 5f c3 4c 89 ea 48 b8 00 00 00 00 00 fc ff df 48 c1 ea 03 <80> 3c 02 00 0f 85 cc 24 00 00 49 81 7d 00 e0 de 03 a6 41 bc 00 00
RSP: 0018:ffff8881e3c07a40 EFLAGS: 00010002
RAX: dffffc0000000000 RBX: 0000000000000000 RCX: 0000000000000000
RDX: 0000000000000010 RSI: 0000000000000000 RDI: 0000000000000080
RBP: 0000000000000000 R08: 0000000000000001 R09: 0000000000000000
R10: ffff8881e3c07d98 R11: ffff8881c7f21f80 R12: 0000000000000001
R13: 0000000000000080 R14: 0000000000000000 R15: 0000000000000001
FS: 00007fce2252e700(0000) GS:ffff8881f2400000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007fffc7eb0228 CR3: 00000001e5bea002 CR4: 00000000007606f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
PKRU: 55555554
Call Trace:
lock_acquire+0xff/0x2c0 kernel/locking/lockdep.c:4211
__mutex_lock_common kernel/locking/mutex.c:925 [inline]
__mutex_lock+0xdf/0x1050 kernel/locking/mutex.c:1072
drain_workqueue+0x24/0x3f0 kernel/workqueue.c:2934
destroy_workqueue+0x23/0x630 kernel/workqueue.c:4319
__do_sys_delete_module kernel/module.c:1018 [inline]
__se_sys_delete_module kernel/module.c:961 [inline]
__x64_sys_delete_module+0x30c/0x480 kernel/module.c:961
do_syscall_64+0x9f/0x450 arch/x86/entry/common.c:290
entry_SYSCALL_64_after_hwframe+0x49/0xbe
RIP: 0033:0x462e99
Code: f7 d8 64 89 02 b8 ff ff ff ff c3 66 0f 1f 44 00 00 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 bc ff ff ff f7 d8 64 89 01 48
RSP: 002b:00007fce2252dc58 EFLAGS: 00000246 ORIG_RAX: 00000000000000b0
RAX: ffffffffffffffda RBX: 000000000073bf00 RCX: 0000000000462e99
RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000020000140
RBP: 0000000000000002 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 00007fce2252e6bc
R13: 00000000004bcca9 R14: 00000000006f6b48 R15: 00000000ffffffff
If alloc_workqueue fails, it should return -ENOMEM, otherwise may
trigger this NULL pointer dereference while unloading drivers.
Reported-by: Hulk Robot <hulkci@huawei.com>
Fixes: 0a38c17a21a0 ("fm10k: Remove create_workqueue")
Signed-off-by: Yue Haibing <yuehaibing@huawei.com>
Tested-by: Andrew Bowers <andrewx.bowers@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
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The current check for WoL on i40e is broken. Code comment says only
magic packet is supported, so only check for that.
Fixes: 540a152da762 (i40e/ixgbe/igb: fail on new WoL flag setting WAKE_MAGICSECURE)
Signed-off-by: Stefan Assmann <sassmann@kpanic.de>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
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The ixgbe ignores errors returned from mdiobus_register() and leaves
adapter->mii_bus non-NULL and MDIO bus state as MDIOBUS_ALLOCATED.
This triggers a BUG from mdiobus_unregister() during ixgbe_remove() call.
Fixes: 8fa10ef01260 ("ixgbe: register a mdiobus")
Signed-off-by: Ivan Vecera <ivecera@redhat.com>
Tested-by: Andrew Bowers <andrewx.bowers@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
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The runtime_suspend device callbacks are not supposed to save
configuration state or change the power state. Commit fb29f76cc566
("igb: Fix an issue that PME is not enabled during runtime suspend")
changed the driver to not save configuration state during runtime
suspend, however the driver callback still put the device into a
low-power state. This causes a warning in the pci pm core and results in
pci_pm_runtime_suspend not calling pci_save_state or pci_finish_runtime_suspend.
Fix this by not changing the power state either, leaving that to pci pm
core, and make the same change for suspend callback as well.
Also move a couple of defines into the appropriate header file instead
of inline in the .c file.
Fixes: fb29f76cc566 ("igb: Fix an issue that PME is not enabled during runtime suspend")
Signed-off-by: Arvind Sankar <niveditas98@gmail.com>
Reviewed-by: Kai-Heng Feng <kai.heng.feng@canonical.com>
Tested-by: Aaron Brown <aaron.f.brown@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
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Commit 0ac30ce43323 ("i40e: fix up 32 bit timespec references",
2017-07-26) claims to be cleaning up references to 32-bit timespecs.
The actual contents of the commit make no sense, as it converts a call
to timespec64_add into timespec64_add_ns. This would seem ok, if (a) the
change was documented in the commit message, and (b) timespec64_add_ns
supported negative numbers.
timespec64_add_ns doesn't work with signed deltas, because the
implementation is based around iter_div_u64_rem. This change resulted in
a regression where i40e_ptp_adjtime would interpret small negative
adjustments as large positive additions, resulting in incorrect
behavior.
This commit doesn't appear to fix anything, is not well explained, and
introduces a bug, so lets just revert it.
Reverts: 0ac30ce43323 ("i40e: fix up 32 bit timespec references", 2017-07-26)
Signed-off-by: Jacob Keller <jacob.e.keller@intel.com>
Reviewed-by: Arnd Bergmann <arnd@arndb.de>
Tested-by: Andrew Bowers <andrewx.bowers@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
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Pull NFS client bugfixes from Trond Myklebust:
"Highlights include:
Stable fixes:
- Fix nfs4_lock_state refcounting in nfs4_alloc_{lock,unlock}data()
- fix mount/umount race in nlmclnt.
- NFSv4.1 don't free interrupted slot on open
Bugfixes:
- Don't let RPC_SOFTCONN tasks time out if the transport is connected
- Fix a typo in nfs_init_timeout_values()
- Fix layoutstats handling during read failovers
- fix uninitialized variable warning"
* tag 'nfs-for-5.1-3' of git://git.linux-nfs.org/projects/trondmy/linux-nfs:
SUNRPC: fix uninitialized variable warning
pNFS/flexfiles: Fix layoutstats handling during read failovers
NFS: Fix a typo in nfs_init_timeout_values()
SUNRPC: Don't let RPC_SOFTCONN tasks time out if the transport is connected
NFSv4.1 don't free interrupted slot on open
NFS: fix mount/umount race in nlmclnt.
NFS: Fix nfs4_lock_state refcounting in nfs4_alloc_{lock,unlock}data()
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Section 2.2.1 BTF_KIND_INT a bullet list was collapsed due to
text reflow in commit 9ab5305dbe3f ("docs/btf: reflow text to
fill up to 78 characters").
This patch correct the mistake. Also adjust next bullet list,
which is used for comparison, to get rendered the same way.
Fixes: 9ab5305dbe3f ("docs/btf: reflow text to fill up to 78 characters")
Link: https://www.kernel.org/doc/html/latest/bpf/btf.html#btf-kind-int
Signed-off-by: Jesper Dangaard Brouer <brouer@redhat.com>
Acked-by: Andrii Nakryiko <andriin@fb.com>
Signed-off-by: Alexei Starovoitov <ast@kernel.org>
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Avoid following compiler warning on uninitialized variable
net/sunrpc/xprtsock.c: In function ‘xs_read_stream_request.constprop’:
net/sunrpc/xprtsock.c:525:10: warning: ‘read’ may be used uninitialized in this function [-Wmaybe-uninitialized]
return read;
^~~~
net/sunrpc/xprtsock.c:529:23: warning: ‘ret’ may be used uninitialized in this function [-Wmaybe-uninitialized]
return ret < 0 ? ret : read;
~~~~~~~~~~~~~~^~~~~~
Signed-off-by: Alakesh Haloi <alakesh.haloi@gmail.com>
Signed-off-by: Trond Myklebust <trond.myklebust@hammerspace.com>
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Paul Chaignon says:
====================
The BPF verifier checks the maximum number of call stack frames twice,
first in the main CFG traversal (do_check) and then in a subsequent
traversal (check_max_stack_depth). If the second check fails, it logs a
'verifier bug' warning and errors out, as the number of call stack frames
should have been verified already.
However, the second check may fail without indicating a verifier bug: if
the excessive function calls reside in dead code, the main CFG traversal
may not visit them; the subsequent traversal visits all instructions,
including dead code.
This case raises the question of how invalid dead code should be treated.
The first patch implements the conservative option and rejects such code;
the second adds a test case.
====================
Signed-off-by: Alexei Starovoitov <ast@kernel.org>
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This patch adds a test case with an excessive number of call stack frames
in dead code.
Signed-off-by: Paul Chaignon <paul.chaignon@orange.com>
Tested-by: Xiao Han <xiao.han@orange.com>
Signed-off-by: Alexei Starovoitov <ast@kernel.org>
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