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git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm
Pull ACPI and PNP updates from Rafael Wysocki:
"These include new code (for instance, support for the FFH address
space type and support for new firmware data structures in ACPICA),
some new quirks (mostly related to backlight handling and I2C
enumeration), a number of fixes and a fair amount of cleanups all
over.
Specifics:
- Update the ACPICA code in the kernel to the 20221020 upstream
version and fix a couple of issues in it:
- Make acpi_ex_load_op() match upstream implementation (Rafael
Wysocki)
- Add support for loong_arch-specific APICs in MADT (Huacai Chen)
- Add support for fixed PCIe wake event (Huacai Chen)
- Add EBDA pointer sanity checks (Vit Kabele)
- Avoid accessing VGA memory when EBDA < 1KiB (Vit Kabele)
- Add CCEL table support to both compiler/disassembler (Kuppuswamy
Sathyanarayanan)
- Add a couple of new UUIDs to the known UUID list (Bob Moore)
- Add support for FFH Opregion special context data (Sudeep
Holla)
- Improve warning message for "invalid ACPI name" (Bob Moore)
- Add support for CXL 3.0 structures (CXIMS & RDPAS) in the CEDT
table (Alison Schofield)
- Prepare IORT support for revision E.e (Robin Murphy)
- Finish support for the CDAT table (Bob Moore)
- Fix error code path in acpi_ds_call_control_method() (Rafael
Wysocki)
- Fix use-after-free in acpi_ut_copy_ipackage_to_ipackage() (Li
Zetao)
- Update the version of the ACPICA code in the kernel (Bob Moore)
- Use ZERO_PAGE(0) instead of empty_zero_page in the ACPI device
enumeration code (Giulio Benetti)
- Change the return type of the ACPI driver remove callback to void
and update its users accordingly (Dawei Li)
- Add general support for FFH address space type and implement the
low- level part of it for ARM64 (Sudeep Holla)
- Fix stale comments in the ACPI tables parsing code and make it
print more messages related to MADT (Hanjun Guo, Huacai Chen)
- Replace invocations of generic library functions with more kernel-
specific counterparts in the ACPI sysfs interface (Christophe
JAILLET, Xu Panda)
- Print full name paths of ACPI power resource objects during
enumeration (Kane Chen)
- Eliminate a compiler warning regarding a missing function prototype
in the ACPI power management code (Sudeep Holla)
- Fix and clean up the ACPI processor driver (Rafael Wysocki, Li
Zhong, Colin Ian King, Sudeep Holla)
- Add quirk for the HP Pavilion Gaming 15-cx0041ur to the ACPI EC
driver (Mia Kanashi)
- Add some mew ACPI backlight handling quirks and update some
existing ones (Hans de Goede)
- Make the ACPI backlight driver prefer the native backlight control
over vendor backlight control when possible (Hans de Goede)
- Drop unsetting ACPI APEI driver data on remove (Uwe Kleine-König)
- Use xchg_release() instead of cmpxchg() for updating new GHES cache
slots (Ard Biesheuvel)
- Clean up the ACPI APEI code (Sudeep Holla, Christophe JAILLET, Jay
Lu)
- Add new I2C device enumeration quirks for Medion Lifetab S10346 and
Lenovo Yoga Tab 3 Pro (YT3-X90F) (Hans de Goede)
- Make the ACPI battery driver notify user space about adding new
battery hooks and removing the existing ones (Armin Wolf)
- Modify the pfr_update and pfr_telemetry drivers to use ACPI_FREE()
for freeing acpi_object structures to help diagnostics (Wang
ShaoBo)
- Make the ACPI fan driver use sysfs_emit_at() in its sysfs interface
code (ye xingchen)
- Fix the _FIF package extraction failure handling in the ACPI fan
driver (Hanjun Guo)
- Fix the PCC mailbox handling error code path (Huisong Li)
- Avoid using PCC Opregions if there is no platform interrupt
allocated for this purpose (Huisong Li)
- Use sysfs_emit() instead of scnprintf() in the ACPI PAD driver and
CPPC library (ye xingchen)
- Fix some kernel-doc issues in the ACPI GSI processing code
(Xiongfeng Wang)
- Fix name memory leak in pnp_alloc_dev() (Yang Yingliang)
- Do not disable PNP devices on suspend when they cannot be
re-enabled on resume (Hans de Goede)
- Clean up the ACPI thermal driver a bit (Rafael Wysocki)"
* tag 'acpi-6.2-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm: (67 commits)
ACPI: x86: Add skip i2c clients quirk for Medion Lifetab S10346
ACPI: APEI: EINJ: Refactor available_error_type_show()
ACPI: APEI: EINJ: Fix formatting errors
ACPI: processor: perflib: Adjust acpi_processor_notify_smm() return value
ACPI: processor: perflib: Rearrange acpi_processor_notify_smm()
ACPI: processor: perflib: Rearrange unregistration routine
ACPI: processor: perflib: Drop redundant parentheses
ACPI: processor: perflib: Adjust white space
ACPI: processor: idle: Drop unnecessary statements and parens
ACPI: thermal: Adjust critical.flags.valid check
ACPI: fan: Convert to use sysfs_emit_at() API
ACPICA: Fix use-after-free in acpi_ut_copy_ipackage_to_ipackage()
ACPI: battery: Call power_supply_changed() when adding hooks
ACPI: use sysfs_emit() instead of scnprintf()
ACPI: x86: Add skip i2c clients quirk for Lenovo Yoga Tab 3 Pro (YT3-X90F)
ACPI: APEI: Remove a useless include
PNP: Do not disable devices on suspend when they cannot be re-enabled on resume
ACPI: processor: Silence missing prototype warnings
ACPI: processor_idle: Silence missing prototype warnings
ACPI: PM: Silence missing prototype warning
...
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git://git.kernel.org/pub/scm/linux/kernel/git/hyperv/linux
Pull hyperv updates from Wei Liu:
- Drop unregister syscore from hyperv_cleanup to avoid hang (Gaurav
Kohli)
- Clean up panic path for Hyper-V framebuffer (Guilherme G. Piccoli)
- Allow IRQ remapping to work without x2apic (Nuno Das Neves)
- Fix comments (Olaf Hering)
- Expand hv_vp_assist_page definition (Saurabh Sengar)
- Improvement to page reporting (Shradha Gupta)
- Make sure TSC clocksource works when Linux runs as the root partition
(Stanislav Kinsburskiy)
* tag 'hyperv-next-signed-20221208' of git://git.kernel.org/pub/scm/linux/kernel/git/hyperv/linux:
x86/hyperv: Remove unregister syscore call from Hyper-V cleanup
iommu/hyper-v: Allow hyperv irq remapping without x2apic
clocksource: hyper-v: Add TSC page support for root partition
clocksource: hyper-v: Use TSC PFN getter to map vvar page
clocksource: hyper-v: Introduce TSC PFN getter
clocksource: hyper-v: Introduce a pointer to TSC page
x86/hyperv: Expand definition of struct hv_vp_assist_page
PCI: hv: update comment in x86 specific hv_arch_irq_unmask
hv: fix comment typo in vmbus_channel/low_latency
drivers: hv, hyperv_fb: Untangle and refactor Hyper-V panic notifiers
video: hyperv_fb: Avoid taking busy spinlock on panic path
hv_balloon: Add support for configurable order free page reporting
mm/page_reporting: Add checks for page_reporting_order param
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git://git.kernel.org/pub/scm/linux/kernel/git/printk/linux
Pull printk updates from Petr Mladek:
- Add NMI-safe SRCU reader API. It uses atomic_inc() instead of
this_cpu_inc() on strong load-store architectures.
- Introduce new console_list_lock to synchronize a manipulation of the
list of registered consoles and their flags.
This is a first step in removing the big-kernel-lock-like behavior of
console_lock(). This semaphore still serializes console->write()
calbacks against:
- each other. It primary prevents potential races between early
and proper console drivers using the same device.
- suspend()/resume() callbacks and init() operations in some
drivers.
- various other operations in the tty/vt and framebufer
susbsystems. It is likely that console_lock() serializes even
operations that are not directly conflicting with the
console->write() callbacks here. This is the most complicated
big-kernel-lock aspect of the console_lock() that will be hard
to untangle.
- Introduce new console_srcu lock that is used to safely iterate and
access the registered console drivers under SRCU read lock.
This is a prerequisite for introducing atomic console drivers and
console kthreads. It will reduce the complexity of serialization
against normal consoles and console_lock(). Also it should remove the
risk of deadlock during critical situations, like Oops or panic, when
only atomic consoles are registered.
- Check whether the console is registered instead of enabled on many
locations. It was a historical leftover.
- Cleanly force a preferred console in xenfb code instead of a dirty
hack.
- A lot of code and comment clean ups and improvements.
* tag 'printk-for-6.2' of git://git.kernel.org/pub/scm/linux/kernel/git/printk/linux: (47 commits)
printk: htmldocs: add missing description
tty: serial: sh-sci: use setup() callback for early console
printk: relieve console_lock of list synchronization duties
tty: serial: kgdboc: use console_list_lock to trap exit
tty: serial: kgdboc: synchronize tty_find_polling_driver() and register_console()
tty: serial: kgdboc: use console_list_lock for list traversal
tty: serial: kgdboc: use srcu console list iterator
proc: consoles: use console_list_lock for list iteration
tty: tty_io: use console_list_lock for list synchronization
printk, xen: fbfront: create/use safe function for forcing preferred
netconsole: avoid CON_ENABLED misuse to track registration
usb: early: xhci-dbc: use console_is_registered()
tty: serial: xilinx_uartps: use console_is_registered()
tty: serial: samsung_tty: use console_is_registered()
tty: serial: pic32_uart: use console_is_registered()
tty: serial: earlycon: use console_is_registered()
tty: hvc: use console_is_registered()
efi: earlycon: use console_is_registered()
tty: nfcon: use console_is_registered()
serial_core: replace uart_console_enabled() with uart_console_registered()
...
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Merge ACPI changes related to device enumeration, device object
managenet, operation region handling, table parsing and sysfs
interface:
- Use ZERO_PAGE(0) instead of empty_zero_page in the ACPI device
enumeration code (Giulio Benetti).
- Change the return type of the ACPI driver remove callback to void and
update its users accordingly (Dawei Li).
- Add general support for FFH address space type and implement the low-
level part of it for ARM64 (Sudeep Holla).
- Fix stale comments in the ACPI tables parsing code and make it print
more messages related to MADT (Hanjun Guo, Huacai Chen).
- Replace invocations of generic library functions with more kernel-
specific counterparts in the ACPI sysfs interface (Christophe JAILLET,
Xu Panda).
* acpi-scan:
ACPI: scan: substitute empty_zero_page with helper ZERO_PAGE(0)
* acpi-bus:
ACPI: FFH: Silence missing prototype warnings
ACPI: make remove callback of ACPI driver void
ACPI: bus: Fix the _OSC capability check for FFH OpRegion
arm64: Add architecture specific ACPI FFH Opregion callbacks
ACPI: Implement a generic FFH Opregion handler
* acpi-tables:
ACPI: tables: Fix the stale comments for acpi_locate_initial_tables()
ACPI: tables: Print CORE_PIC information when MADT is parsed
* acpi-sysfs:
ACPI: sysfs: use sysfs_emit() to instead of scnprintf()
ACPI: sysfs: Use kstrtobool() instead of strtobool()
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With commit 9e124fe16ff2("xen: Enable console tty by default in domU
if it's not a dummy") a hack was implemented to make sure that the
tty console remains the console behind the /dev/console device. The
main problem with the hack is that, after getting the console pointer
to the tty console, it is assumed the pointer is still valid after
releasing the console_sem. This assumption is incorrect and unsafe.
Make the hack safe by introducing a new function
console_force_preferred_locked() and perform the full operation
under the console_list_lock.
Signed-off-by: John Ogness <john.ogness@linutronix.de>
Reviewed-by: Petr Mladek <pmladek@suse.com>
Signed-off-by: Petr Mladek <pmladek@suse.com>
Link: https://lore.kernel.org/r/20221116162152.193147-33-john.ogness@linutronix.de
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Currently Hyper-V guests are among the most relevant users of the panic
infrastructure, like panic notifiers, kmsg dumpers, etc. The reasons rely
both in cleaning-up procedures (closing hypervisor <-> guest connection,
disabling some paravirtualized timer) as well as to data collection
(sending panic information to the hypervisor) and framebuffer management.
The thing is: some notifiers are related to others, ordering matters, some
functionalities are duplicated and there are lots of conditionals behind
sending panic information to the hypervisor. As part of an effort to
clean-up the panic notifiers mechanism and better document things, we
hereby address some of the issues/complexities of Hyper-V panic handling
through the following changes:
(a) We have die and panic notifiers on vmbus_drv.c and both have goals of
sending panic information to the hypervisor, though the panic notifier is
also responsible for a cleaning-up procedure.
This commit clears the code by splitting the panic notifier in two, one
for closing the vmbus connection whereas the other is only for sending
panic info to hypervisor. With that, it was possible to merge the die and
panic notifiers in a single/well-documented function, and clear some
conditional complexities on sending such information to the hypervisor.
(b) There is a Hyper-V framebuffer panic notifier, which relies in doing
a vmbus operation that demands a valid connection. So, we must order this
notifier with the panic notifier from vmbus_drv.c, to guarantee that the
framebuffer code executes before the vmbus connection is unloaded.
Also, this commit removes a useless header.
Although there is code rework and re-ordering, we expect that this change
has no functional regressions but instead optimize the path and increase
panic reliability on Hyper-V. This was tested on Hyper-V with success.
Cc: Andrea Parri (Microsoft) <parri.andrea@gmail.com>
Cc: Dexuan Cui <decui@microsoft.com>
Cc: Haiyang Zhang <haiyangz@microsoft.com>
Cc: "K. Y. Srinivasan" <kys@microsoft.com>
Cc: Petr Mladek <pmladek@suse.com>
Cc: Stephen Hemminger <sthemmin@microsoft.com>
Cc: Tianyu Lan <Tianyu.Lan@microsoft.com>
Cc: Wei Liu <wei.liu@kernel.org>
Reviewed-by: Michael Kelley <mikelley@microsoft.com>
Tested-by: Fabio A M Martins <fabiomirmar@gmail.com>
Signed-off-by: Guilherme G. Piccoli <gpiccoli@igalia.com>
Tested-by: Michael Kelley <mikelley@microsoft.com>
Link: https://lore.kernel.org/r/20220819221731.480795-11-gpiccoli@igalia.com
Signed-off-by: Wei Liu <wei.liu@kernel.org>
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The Hyper-V framebuffer code registers a panic notifier in order
to try updating its fbdev if the kernel crashed. The notifier
callback is straightforward, but it calls the vmbus_sendpacket()
routine eventually, and such function takes a spinlock for the
ring buffer operations.
Panic path runs in atomic context, with local interrupts and
preemption disabled, and all secondary CPUs shutdown. That said,
taking a spinlock might cause a lockup if a secondary CPU was
disabled with such lock taken. Fix it here by checking if the
ring buffer spinlock is busy on Hyper-V framebuffer panic notifier;
if so, bail-out avoiding the potential lockup scenario.
Cc: Andrea Parri (Microsoft) <parri.andrea@gmail.com>
Cc: Dexuan Cui <decui@microsoft.com>
Cc: Haiyang Zhang <haiyangz@microsoft.com>
Cc: "K. Y. Srinivasan" <kys@microsoft.com>
Cc: Michael Kelley <mikelley@microsoft.com>
Cc: Stephen Hemminger <sthemmin@microsoft.com>
Cc: Tianyu Lan <Tianyu.Lan@microsoft.com>
Cc: Wei Liu <wei.liu@kernel.org>
Tested-by: Fabio A M Martins <fabiomirmar@gmail.com>
Signed-off-by: Guilherme G. Piccoli <gpiccoli@igalia.com>
Reviewed-by: Michael Kelley <mikelley@microsoft.com>
Link: https://lore.kernel.org/r/20220819221731.480795-10-gpiccoli@igalia.com
Signed-off-by: Wei Liu <wei.liu@kernel.org>
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git://anongit.freedesktop.org/drm/drm-misc into drm-fixes
drm-misc-fixes for v6.1-rc7:
- Another amdgpu gang submit fix.
- Use dma_fence_unwrap_for_each when importing sync files.
- Fix race in dma_heap_add().
- Fix use of uninitialized memory in logo.
Signed-off-by: Dave Airlie <airlied@redhat.com>
From: Maarten Lankhorst <maarten.lankhorst@linux.intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/a5721505-4823-98ef-7d6f-0ea478221391@linux.intel.com
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For bus-based driver, device removal is implemented as:
1 device_remove()->
2 bus->remove()->
3 driver->remove()
Driver core needs no inform from callee(bus driver) about the
result of remove callback. In that case, commit fc7a6209d571
("bus: Make remove callback return void") forces bus_type::remove
be void-returned.
Now we have the situation that both 1 & 2 of calling chain are
void-returned, so it does not make much sense for 3(driver->remove)
to return non-void to its caller.
So the basic idea behind this change is making remove() callback of
any bus-based driver to be void-returned.
This change, for itself, is for device drivers based on acpi-bus.
Acked-by: Uwe Kleine-König <u.kleine-koenig@pengutronix.de>
Acked-by: Lee Jones <lee@kernel.org>
Acked-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
Reviewed-by: Hans de Goede <hdegoede@redhat.com>
Signed-off-by: Dawei Li <set_pte_at@outlook.com>
Reviewed-by: Maximilian Luz <luzmaximilian@gmail.com> # for drivers/platform/surface/*
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
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A kernel built with syzbot's config file reported that
scr_memcpyw(q, save, array3_size(logo_lines, new_cols, 2))
causes uninitialized "save" to be copied.
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[drm] Initialized vgem 1.0.0 20120112 for vgem on minor 0
[drm] Initialized vkms 1.0.0 20180514 for vkms on minor 1
Console: switching to colour frame buffer device 128x48
=====================================================
BUG: KMSAN: uninit-value in do_update_region+0x4b8/0xba0
do_update_region+0x4b8/0xba0
update_region+0x40d/0x840
fbcon_switch+0x3364/0x35e0
redraw_screen+0xae3/0x18a0
do_bind_con_driver+0x1cb3/0x1df0
do_take_over_console+0x11cb/0x13f0
fbcon_fb_registered+0xacc/0xfd0
register_framebuffer+0x1179/0x1320
__drm_fb_helper_initial_config_and_unlock+0x23ad/0x2b40
drm_fbdev_client_hotplug+0xbea/0xda0
drm_fbdev_generic_setup+0x65e/0x9d0
vkms_init+0x9f3/0xc76
(...snipped...)
Uninit was stored to memory at:
fbcon_prepare_logo+0x143b/0x1940
fbcon_init+0x2c1b/0x31c0
visual_init+0x3e7/0x820
do_bind_con_driver+0x14a4/0x1df0
do_take_over_console+0x11cb/0x13f0
fbcon_fb_registered+0xacc/0xfd0
register_framebuffer+0x1179/0x1320
__drm_fb_helper_initial_config_and_unlock+0x23ad/0x2b40
drm_fbdev_client_hotplug+0xbea/0xda0
drm_fbdev_generic_setup+0x65e/0x9d0
vkms_init+0x9f3/0xc76
(...snipped...)
Uninit was created at:
__kmem_cache_alloc_node+0xb69/0x1020
__kmalloc+0x379/0x680
fbcon_prepare_logo+0x704/0x1940
fbcon_init+0x2c1b/0x31c0
visual_init+0x3e7/0x820
do_bind_con_driver+0x14a4/0x1df0
do_take_over_console+0x11cb/0x13f0
fbcon_fb_registered+0xacc/0xfd0
register_framebuffer+0x1179/0x1320
__drm_fb_helper_initial_config_and_unlock+0x23ad/0x2b40
drm_fbdev_client_hotplug+0xbea/0xda0
drm_fbdev_generic_setup+0x65e/0x9d0
vkms_init+0x9f3/0xc76
(...snipped...)
CPU: 2 PID: 1 Comm: swapper/0 Not tainted 6.1.0-rc4-00356-g8f2975c2bb4c #924
Hardware name: innotek GmbH VirtualBox/VirtualBox, BIOS VirtualBox 12/01/2006
----------
Signed-off-by: Tetsuo Handa <penguin-kernel@I-love.SAKURA.ne.jp>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Link: https://patchwork.freedesktop.org/patch/msgid/cad03d25-0ea0-32c4-8173-fd1895314bce@I-love.SAKURA.ne.jp
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git://git.kernel.org/pub/scm/linux/kernel/git/deller/linux-fbdev
Pull fbdev fixes from Helge Deller:
"A use-after-free bugfix in the smscufx driver and various minor error
path fixes, smaller build fixes, sysfs fixes and typos in comments in
the stifb, sisfb, da8xxfb, xilinxfb, sm501fb, gbefb and cyber2000fb
drivers"
* tag 'fbdev-for-6.1-rc3' of git://git.kernel.org/pub/scm/linux/kernel/git/deller/linux-fbdev:
fbdev: cyber2000fb: fix missing pci_disable_device()
fbdev: sisfb: use explicitly signed char
fbdev: smscufx: Fix several use-after-free bugs
fbdev: xilinxfb: Make xilinxfb_release() return void
fbdev: sisfb: fix repeated word in comment
fbdev: gbefb: Convert sysfs snprintf to sysfs_emit
fbdev: sm501fb: Convert sysfs snprintf to sysfs_emit
fbdev: stifb: Fall back to cfb_fillrect() on 32-bit HCRX cards
fbdev: da8xx-fb: Fix error handling in .remove()
fbdev: MIPS supports iomem addresses
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Add missing pci_disable_device() in error path of probe() and remove() path.
Fixes: 1da177e4c3f4 ("Linux-2.6.12-rc2")
Signed-off-by: Yang Yingliang <yangyingliang@huawei.com>
Signed-off-by: Helge Deller <deller@gmx.de>
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Return on error directly from the BAR-iterating loop instead of
break+return.
This is actually a cosmetic fix, since it would be highly unusual to
have this called for a PCI device without any memory BARs.
Fixes: 9d69ef183815 ("fbdev/core: Remove remove_conflicting_pci_framebuffers()")
Signed-off-by: Michał Mirosław <mirq-linux@rere.qmqm.pl>
Signed-off-by: Thomas Zimmermann <tzimmermann@suse.de>
Link: https://patchwork.freedesktop.org/patch/msgid/e75323732bedc46d613d72ecb40f97e3bc75eea8.1666829073.git.mirq-linux@rere.qmqm.pl
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With char becoming unsigned by default, and with `char` alone being
ambiguous and based on architecture, signed chars need to be marked
explicitly as such. This fixes warnings like:
drivers/video/fbdev/sis/init301.c:3549 SiS_GetCRT2Data301() warn: 'SiS_Pr->SiS_EModeIDTable[ModeIdIndex]->ROMMODEIDX661' is unsigned
Cc: Thomas Winischhofer <thomas@winischhofer.net>
Cc: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Cc: Helge Deller <deller@gmx.de>
Cc: linux-usb@vger.kernel.org
Cc: linux-fbdev@vger.kernel.org
Cc: dri-devel@lists.freedesktop.org
Signed-off-by: Jason A. Donenfeld <Jason@zx2c4.com>
Signed-off-by: Helge Deller <deller@gmx.de>
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Several types of UAFs can occur when physically removing a USB device.
Adds ufx_ops_destroy() function to .fb_destroy of fb_ops, and
in this function, there is kref_put() that finally calls ufx_free().
This fix prevents multiple UAFs.
Signed-off-by: Hyunwoo Kim <imv4bel@gmail.com>
Link: https://lore.kernel.org/linux-fbdev/20221011153436.GA4446@ubuntu/
Cc: <stable@vger.kernel.org>
Signed-off-by: Helge Deller <deller@gmx.de>
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The function xilinxfb_release() returns zero unconditionally. Make it
return void. There is no semantic change, the only effect is that it
becomes obvious that the driver's .remove() callback always returns zero.
This is a preparation for making platform remove callbacks return void.
Signed-off-by: Uwe Kleine-König <u.kleine-koenig@pengutronix.de>
Signed-off-by: Helge Deller <deller@gmx.de>
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Signed-off-by: Jilin Yuan <yuanjilin@cdjrlc.com>
Signed-off-by: Helge Deller <deller@gmx.de>
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Follow the advice of the Documentation/filesystems/sysfs.rst
and show() should only use sysfs_emit() or sysfs_emit_at()
when formatting the value to be returned to user space.
Signed-off-by: Xuezhi Zhang <zhangxuezhi1@coolpad.com>
Signed-off-by: Helge Deller <deller@gmx.de>
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Follow the advice of the Documentation/filesystems/sysfs.rst
and show() should only use sysfs_emit() or sysfs_emit_at()
when formatting the value to be returned to user space.
Signed-off-by: Xuezhi Zhang <zhangxuezhi1@coolpad.com>
Signed-off-by: Helge Deller <deller@gmx.de>
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When the text console is scrolling text upwards it calls the fillrect()
function to empty the new line. The current implementation doesn't seem
to work correctly on HCRX cards in 32-bit mode and leave garbage in that
line instead. Fix it by falling back to standard cfb_fillrect() in that
case.
Signed-off-by: Helge Deller <deller@gmx.de>
Cc: <stable@vger.kernel.org>
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Even in the presence of problems (here: regulator_disable() might fail),
it's important to unregister all resources acquired during .probe() and
disable the device (i.e. DMA activity) because even if .remove() returns
an error code, the device is removed and the .remove() callback is never
called again later to catch up.
This is a preparation for making platform remove callbacks return void.
Signed-off-by: Uwe Kleine-König <u.kleine-koenig@pengutronix.de>
Signed-off-by: Helge Deller <deller@gmx.de>
Fixes: 611097d5daea ("fbdev: da8xx: add support for a regulator")
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git://git.kernel.org/pub/scm/linux/kernel/git/crng/random
Pull more random number generator updates from Jason Donenfeld:
"This time with some large scale treewide cleanups.
The intent of this pull is to clean up the way callers fetch random
integers. The current rules for doing this right are:
- If you want a secure or an insecure random u64, use get_random_u64()
- If you want a secure or an insecure random u32, use get_random_u32()
The old function prandom_u32() has been deprecated for a while
now and is just a wrapper around get_random_u32(). Same for
get_random_int().
- If you want a secure or an insecure random u16, use get_random_u16()
- If you want a secure or an insecure random u8, use get_random_u8()
- If you want secure or insecure random bytes, use get_random_bytes().
The old function prandom_bytes() has been deprecated for a while
now and has long been a wrapper around get_random_bytes()
- If you want a non-uniform random u32, u16, or u8 bounded by a
certain open interval maximum, use prandom_u32_max()
I say "non-uniform", because it doesn't do any rejection sampling
or divisions. Hence, it stays within the prandom_*() namespace, not
the get_random_*() namespace.
I'm currently investigating a "uniform" function for 6.2. We'll see
what comes of that.
By applying these rules uniformly, we get several benefits:
- By using prandom_u32_max() with an upper-bound that the compiler
can prove at compile-time is ≤65536 or ≤256, internally
get_random_u16() or get_random_u8() is used, which wastes fewer
batched random bytes, and hence has higher throughput.
- By using prandom_u32_max() instead of %, when the upper-bound is
not a constant, division is still avoided, because
prandom_u32_max() uses a faster multiplication-based trick instead.
- By using get_random_u16() or get_random_u8() in cases where the
return value is intended to indeed be a u16 or a u8, we waste fewer
batched random bytes, and hence have higher throughput.
This series was originally done by hand while I was on an airplane
without Internet. Later, Kees and I worked on retroactively figuring
out what could be done with Coccinelle and what had to be done
manually, and then we split things up based on that.
So while this touches a lot of files, the actual amount of code that's
hand fiddled is comfortably small"
* tag 'random-6.1-rc1-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/crng/random:
prandom: remove unused functions
treewide: use get_random_bytes() when possible
treewide: use get_random_u32() when possible
treewide: use get_random_{u8,u16}() when possible, part 2
treewide: use get_random_{u8,u16}() when possible, part 1
treewide: use prandom_u32_max() when possible, part 2
treewide: use prandom_u32_max() when possible, part 1
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git://git.kernel.org/pub/scm/linux/kernel/git/deller/parisc-linux
Pull parisc updates from Helge Deller:
"Fixes:
- When we added basic vDSO support in kernel 5.18 we introduced a bug
which prevented a mmap() of graphic card memory. This is because we
used the DMB (data memory break trap bit) page flag as special-bit,
but missed to clear that bit when loading the TLB.
- Graphics card memory size was not correctly aligned
- Spelling fixes (from Colin Ian King)
Enhancements:
- PDC console (which uses firmware calls) now rewritten as early
console
- Reduced size of alternative tables"
* tag 'parisc-for-6.1-1' of git://git.kernel.org/pub/scm/linux/kernel/git/deller/parisc-linux:
parisc: Fix spelling mistake "mis-match" -> "mismatch" in eisa driver
parisc: Fix userspace graphics card breakage due to pgtable special bit
parisc: fbdev/stifb: Align graphics memory size to 4MB
parisc: Convert PDC console to an early console
parisc: Reduce kernel size by packing alternative tables
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Independend of the current graphics resolution, adjust the reported
graphics card memory size to the next 4MB boundary.
This fixes the fbtest program which expects a naturally aligned size.
Signed-off-by: Helge Deller <deller@gmx.de>
Cc: <stable@vger.kernel.org>
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The prandom_u32() function has been a deprecated inline wrapper around
get_random_u32() for several releases now, and compiles down to the
exact same code. Replace the deprecated wrapper with a direct call to
the real function. The same also applies to get_random_int(), which is
just a wrapper around get_random_u32(). This was done as a basic find
and replace.
Reviewed-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Reviewed-by: Kees Cook <keescook@chromium.org>
Reviewed-by: Yury Norov <yury.norov@gmail.com>
Reviewed-by: Jan Kara <jack@suse.cz> # for ext4
Acked-by: Toke Høiland-Jørgensen <toke@toke.dk> # for sch_cake
Acked-by: Chuck Lever <chuck.lever@oracle.com> # for nfsd
Acked-by: Jakub Kicinski <kuba@kernel.org>
Acked-by: Mika Westerberg <mika.westerberg@linux.intel.com> # for thunderbolt
Acked-by: Darrick J. Wong <djwong@kernel.org> # for xfs
Acked-by: Helge Deller <deller@gmx.de> # for parisc
Acked-by: Heiko Carstens <hca@linux.ibm.com> # for s390
Signed-off-by: Jason A. Donenfeld <Jason@zx2c4.com>
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|
NO_IRQ is used to check the return of irq_of_parse_and_map().
On some architecture NO_IRQ is 0, on other architectures it is -1.
irq_of_parse_and_map() returns 0 on error, independent of NO_IRQ.
So use 0 instead of using NO_IRQ.
Signed-off-by: Christophe Leroy <christophe.leroy@csgroup.eu>
Signed-off-by: Helge Deller <deller@gmx.de>
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This patch adds missing MODULE_DEVICE_TABLE definition
which generates correct modalias for automatic loading
of this driver when it is built as an external module.
Signed-off-by: Zeng Heng <zengheng4@huawei.com>
Signed-off-by: Helge Deller <deller@gmx.de>
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Replace pci_enable_device() with pcim_enable_device(), pci_disable_device() and
pci_release_regions() will be called in release automatically.
Signed-off-by: ruanjinjie <ruanjinjie@huawei.com>
Signed-off-by: Helge Deller <deller@gmx.de>
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A race condition may occur if the user physically removes the
USB device while calling open() for this device node.
This is a race condition between the ufx_ops_open() function and
the ufx_usb_disconnect() function, which may eventually result in UAF.
So, add a mutex to the ufx_ops_open() and ufx_usb_disconnect() functions
to avoid race contidion of krefs.
Signed-off-by: Hyunwoo Kim <imv4bel@gmail.com>
Cc: stable@vger.kernel.org
Signed-off-by: Helge Deller <deller@gmx.de>
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|
The driver core supports the ability to handle the creation and removal
of device-specific sysfs files in a race-free manner. Moreover, it can
guarantee the success of creation. Therefore, it should be better to
convert to use dev_groups.
Signed-off-by: Jiasheng Jiang <jiasheng@iscas.ac.cn>
Signed-off-by: Helge Deller <deller@gmx.de>
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devm_ioremap_resource() prints error message in itself. Remove the
dev_err call to avoid redundant error message.
Signed-off-by: Shang XiaoJing <shangxiaojing@huawei.com>
Signed-off-by: Helge Deller <deller@gmx.de>
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pm_runtime_get_sync()
Using the newest pm_runtime_resume_and_get is more appropriate
for simplifing code here.
Signed-off-by: Zhang Qilong <zhangqilong3@huawei.com>
Signed-off-by: Helge Deller <deller@gmx.de>
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Coccinelle reports: WARNING: use scnprintf or sprintf
Adding to that, there has also been some slow migration from snprintf to
scnprintf. This article explains the rationale for this change:
https: //lwn.net/Articles/69419/
Signed-off-by: Jules Irenge <jbi.octave@gmail.com>
Signed-off-by: Helge Deller <deller@gmx.de>
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The function dac_read_reg() is defined in the arkfb.c file, but not
called elsewhere, so delete this unused function.
drivers/video/fbdev/arkfb.c:322:18: warning: unused function 'dac_read_reg'.
Link: https://bugzilla.openanolis.cn/show_bug.cgi?id=2155
Reported-by: Abaci Robot <abaci@linux.alibaba.com>
Signed-off-by: Jiapeng Chong <jiapeng.chong@linux.alibaba.com>
Signed-off-by: Helge Deller <deller@gmx.de>
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The function shadowmode_off() is defined in the tridentfb.c file, but not
called elsewhere, so delete this unused function.
drivers/video/fbdev/tridentfb.c:1131:20: warning: unused function 'shadowmode_off'.
Link: https://bugzilla.openanolis.cn/show_bug.cgi?id=2154
Reported-by: Abaci Robot <abaci@linux.alibaba.com>
Signed-off-by: Jiapeng Chong <jiapeng.chong@linux.alibaba.com>
Signed-off-by: Helge Deller <deller@gmx.de>
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The function VAR_MATCH is defined in the controlfb.c file, but not
called elsewhere, so delete this unused function.
drivers/video/fbdev/controlfb.c:111:19: warning: unused function 'VAR_MATCH'.
Link: https://bugzilla.openanolis.cn/show_bug.cgi?id=2153
Reported-by: Abaci Robot <abaci@linux.alibaba.com>
Signed-off-by: Jiapeng Chong <jiapeng.chong@linux.alibaba.com>
Signed-off-by: Helge Deller <deller@gmx.de>
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The variable identical is being initialized with a value that is never
read. The variable is being re-assigned later on. The initialization is
redundant and can be removed.
Cleans up clang scan-build warning:
drivers/video/fbdev/udlfb.c:373:6: warning: Value stored to 'identical'
during its initialization is never read [deadcode.DeadStores]
Signed-off-by: Colin Ian King <colin.i.king@gmail.com>
Signed-off-by: Helge Deller <deller@gmx.de>
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Pull drm updates from Dave Airlie:
"Lots of stuff all over, some new AMD IP support and gang submit
support. i915 has further DG2 and Meteorlake pieces, and a bunch of
i915 display refactoring. msm has a shrinker rework. There are also a
bunch of conversions to use kunit.
This has two external pieces, some MEI changes needed for future Intel
discrete GPUs. These should be acked by Greg. There is also a cross
maintainer shared tree with some backlight rework from Hans in here.
Core:
- convert selftests to kunit
- managed init for more objects
- move to idr_init_base
- rename fb and gem cma helpers to dma
- hide unregistered connectors from getconnector ioctl
- DSC passthrough aux support
- backlight handling improvements
- add dma_resv_assert_held to vmap/vunmap
edid:
- move luminance calculation to core
fbdev:
- fix aperture helper usage
fourcc:
- add more format helpers
- add DRM_FORMAT_Cxx, DRM_FORMAT_Rxx, DRM_FORMAT_Dxx
- add packed AYUV8888, XYUV8888
- add some kunit tests
ttm:
- allow bos without backing store
- rewrite placement to use intersect/compatible functions
dma-buf:
- docs update
- improve signalling when debugging
udmabuf:
- fix failure path GPF
dp:
- drop dp/mst legacy code
- atomic mst state support
- audio infoframe packing
panel:
- Samsung LTL101AL01
- B120XAN01.0
- R140NWF5 RH
- DMT028VGHMCMI-1A T
- AUO B133UAN02.1
- IVO M133NW4J-R3
- Innolux N120ACA-EA1
amdgpu:
- Gang submit support
- Mode2 reset for RDNA2
- New IP support:
DCN 3.1.4, 3.2
SMU 13.x
NBIO 7.7
GC 11.x
PSP 13.x
SDMA 6.x
GMC 11.x
- DSC passthrough support
- PSP fixes for TA support
- vangogh GFXOFF stats
- clang fixes
- gang submit CS cleanup prep work
- fix VRAM eviction issues
amdkfd:
- GC 10.3 IP ISA fixes
- fix CRIU regression
- CPU fault on COW mapping fixes
i915:
- align fw versioning with kernel practices
- add display substruct to i915 private
- add initial runtime info to driver info
- split out HDCP and backlight registers
- MEI XeHP SDV GSC support
- add per-gt sysfs defaults
- TLB invalidation improvements
- Disable PCI BAR resize on 32-bit
- GuC firmware updates and compat changes
- GuC log timestamp translation
- DG2 preemption workaround changes
- DG2 improved HDMI pixel clocks support
- PCI BAR sanity checks
- Enable DC5 on DG2
- DG2 DMC fw bumped
- ADL-S PCI ID added
- Meteorlake enablement
- Rename ggtt_view to gtt_view
- host RPS fixes
- release mmaps on rpm suspend on discrete
- clocking and dpll refactoring
- VBT definitions and parsing updates
- SKL watermark code extracted to separate file
- allow seamless M/N changes on eDP panels
- BUG_ON removal and cleanups
msm:
- DPU:
simplified VBIF configuration
cleanup CTL interfaces
- DSI:
removed unused msm_display_dsc_config struct
switch regulator calls to new API
switched to PANEL_BRIDGE for direct attached panels
- DSI_PHY: convert drivers to parent_hws
- DP: cleanup pixel_rate handling
- HDMI: turned hdmi-phy-8996 into OF clk provider
- misc dt-bindings fixes
- choose eDP as primary display if it's available
- support getting interconnects from either the mdss or the mdp5/dpu
device nodes
- gem: Shrinker + LRU re-work:
- adds a shared GEM LRU+shrinker helper and moves msm over to that
- reduce lock contention between retire and submit by avoiding the
need to acquire obj lock in retire path (and instead using resv
seeing obj's busyness in the shrinker
- fix reclaim vs submit issues
- GEM fault injection for triggering userspace error paths
- Map/unmap optimization
- Improved robustness for a6xx GPU recovery
virtio:
- improve error and edge conditions handling
- convert to use managed helpers
- stop exposing LINEAR modifier
mgag200:
- split modeset handling per model
udl:
- suspend/disconnect handling improvements
vc4:
- rework HDMI power up
- depend on PM
- better unplugging support
ast:
- resolution handling improvements
ingenic:
- add JZ4760(B) support
- avoid a modeset when sharpness property is unchanged
- use the new PM ops
it6505:
- power seq and clock updates
ssd130x:
- regmap bulk write
- use atomic helpers instead of simple helpers
via:
- rename via_drv to via_dri1, consolidate all code.
radeon:
- drop DP MST experimental support
- delayed work flush fix
- use time_after
ti-sn65dsi86:
- DP support
mediatek:
- MT8195 DP support
- drop of_gpio header
- remove unneeded result
- small DP code improvements
vkms:
- RGB565, XRGB64 and ARGB64 support
sun4i:
- tv: convert to atomic
rcar-du:
- Synopsys DW HDMI bridge DT bindings update
exynos:
- use drm_display_info.is_hdmi
- correct return of mixer_mode_valid and hdmi_mode_valid
omap:
- refcounting fix
rockchip:
- RK3568 support
- RK3399 gamma support"
* tag 'drm-next-2022-10-05' of git://anongit.freedesktop.org/drm/drm: (1374 commits)
drm/amdkfd: Fix UBSAN shift-out-of-bounds warning
drm/amdkfd: Track unified memory when switching xnack mode
drm/amdgpu: Enable sram on vcn_4_0_2
drm/amdgpu: Enable VCN DPG for GC11_0_1
drm/msm: Fix build break with recent mm tree
drm/panel: simple: Use dev_err_probe() to simplify code
drm/panel: panel-edp: Use dev_err_probe() to simplify code
drm/panel: simple: Add Multi-Inno Technology MI0800FT-9
dt-bindings: display: simple: Add Multi-Inno Technology MI0800FT-9 panel
drm/amdgpu: correct the memcpy size for ip discovery firmware
drm/amdgpu: Skip put_reset_domain if it doesn't exist
drm/amdgpu: remove switch from amdgpu_gmc_noretry_set
drm/amdgpu: Fix mc_umc_status used uninitialized warning
drm/amd/display: Prevent OTG shutdown during PSR SU
drm/amdgpu: add page retirement handling for CPU RAS
drm/amdgpu: use RAS error address convert api in mca notifier
drm/amdgpu: support to convert dedicated umc mca address
drm/amdgpu: export umc error address convert interface
drm/amdgpu: fix sdma v4 init microcode error
drm/amd/display: fix array-bounds error in dc_stream_remove_writeback()
...
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git://git.kernel.org/pub/scm/linux/kernel/git/lee/backlight
Pull backlight update from Lee Jones:
- Add support for MediaTek MT6370 Backlight
* tag 'backlight-next-6.1' of git://git.kernel.org/pub/scm/linux/kernel/git/lee/backlight:
video: backlight: mt6370: Add MediaTek MT6370 support
dt-bindings: backlight: Add MediaTek MT6370 backlight
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Linux 6.0-rc5
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git://git.kernel.org/pub/scm/linux/kernel/git/hyperv/linux
Pull hyperv fixes from Wei Liu:
- Fix an error handling issue in DRM driver (Christophe JAILLET)
- Fix some issues in framebuffer driver (Vitaly Kuznetsov)
- Two typo fixes (Jason Wang, Shaomin Deng)
- Drop unnecessary casting in kvp tool (Zhou Jie)
* tag 'hyperv-fixes-signed-20220912' of git://git.kernel.org/pub/scm/linux/kernel/git/hyperv/linux:
Drivers: hv: Never allocate anything besides framebuffer from framebuffer memory region
Drivers: hv: Always reserve framebuffer region for Gen1 VMs
PCI: Move PCI_VENDOR_ID_MICROSOFT/PCI_DEVICE_ID_HYPERV_VIDEO definitions to pci_ids.h
tools: hv: kvp: remove unnecessary (void*) conversions
Drivers: hv: remove duplicate word in a comment
tools: hv: Remove an extraneous "the"
drm/hyperv: Fix an error handling path in hyperv_vmbus_probe()
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git://anongit.freedesktop.org/drm/drm-misc into drm-next
drm-misc-next for v6.1-rc1:
[airlied - fix sun4i_tv build]
UAPI Changes:
- Hide unregistered connectors from GETCONNECTOR ioctl.
- drm/virtio no longer advertises LINEAR modifier, as it doesn't work.
-
Cross-subsystem Changes:
- Fix GPF in udmabuf failure path.
Core Changes:
- Rework TTM placement to use intersect/compatible functions.
- Drop legacy DP-MST support.
- More DP-MST related fixes, and move all state into atomic.
- Make DRM_MIPI_DBI select DRM_KMS_HELPER.
- Add audio_infoframe packing for DP.
- Add logging when some atomic check functions fail.
- Assorted documentation updates and fixes.
Driver Changes:
- Assorted cleanups and fixes in msm, lcdif, nouveau, virtio,
panel/ilitek, bridge/icn6211, tve200, gma500, bridge/*, panfrost, via,
bochs, qxl, sun4i.
- Add add AUO B133UAN02.1, IVO M133NW4J-R3, Innolux N120ACA-EA1 eDP panels.
- Improve DP-MST modeset state handling in amdgpu, nouveau, i915.
- Drop DP-MST from radeon driver, it was broken and only user of legacy
DP-MST.
- Handle unplugging better in vc4.
- Simplify drm cmdparser tests.
- Add DP support to ti-sn65dsi86.
- Add MT8195 DP support to mediatek.
- Support RGB565, XRGB64, and ARGB64 formats in vkms.
- Convert sun4i tv support to atomic.
- Refactor vc4/vec TV Modesetting, and fix timings.
- Use atomic helpers instead of simple display helpers in ssd130x.
Maintainer changes:
- Add Douglas Anderson as reviewer for panel-edp.
Signed-off-by: Dave Airlie <airlied@redhat.com>
From: Maarten Lankhorst <maarten.lankhorst@linux.intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/a489485b-3ebc-c734-0f80-aed963d89efe@linux.intel.com
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MediaTek MT6370 is a SubPMIC consisting of a single cell battery charger
with ADC monitoring, RGB LEDs, dual channel flashlight, WLED backlight
driver, display bias voltage supply, one general purpose LDO, and the
USB Type-C & PD controller complies with the latest USB Type-C and PD
standards.
Add support for the MediaTek MT6370 backlight driver.
It controls 4 channels of 8 series WLEDs in
2048 (only for MT6370/MT6371) / 16384 (only for MT6372)
current steps (30 mA) in exponential or linear mapping curves.
Reviewed-by: Daniel Thompson <daniel.thompson@linaro.org>
Signed-off-by: ChiaEn Wu <chiaen_wu@richtek.com>
Signed-off-by: Lee Jones <lee@kernel.org>
Link: https://lore.kernel.org/r/20220830034042.9354-11-peterwu.pub@gmail.com
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git://anongit.freedesktop.org/drm/drm-misc into drm-next
drm-misc-next for v6.1:
UAPI Changes:
Cross-subsystem Changes:
- DMA-buf: documentation updates.
- Assorted small fixes to vga16fb
- Fix fbdev drivers to use the aperture helpers.
- Make removal of conflicting drivers work correctly without fbdev enabled.
Core Changes:
- bridge, scheduler, dp-mst: Assorted small fixes.
- Add more format helpers to fourcc, and use it to replace the cpp usage.
- Add DRM_FORMAT_Cxx, DRM_FORMAT_Rxx (single channel), and DRM_FORMAT_Dxx
("darkness", inverted single channel)
- Add packed AYUV8888 and XYUV8888 formats.
- Assorted documentation updates.
- Rename ttm_bo_init to ttm_bo_init_validate.
- Allow TTM bo's to exist without backing store.
- Convert drm selftests to kunit.
- Add managed init functions for (panel) bridge, crtc, encoder and connector.
- Fix endianness handling in various format conversion helpers.
- Make tests pass on big-endian platforms, and add test for rgb888 -> rgb565
- Move DRM_PLANE_HELPER_NO_SCALING to atomic helpers and rename, so
drm_plane_helper is no longer needed in most drivers.
- Use idr_init_base instead of idr_init.
- Rename FB and GEM CMA helpers to DMA helpers.
- Rework XRGB8888 related conversion helpers, and add drm_fb_blit() that
takes a iosys_map. Make drm_fb_memcpy take an iosys_map too.
- Move edid luminance calculation to core, and use it in i915.
Driver Changes:
- bridge/{adv7511,ti-sn65dsi86,parade-ps8640}, panel/{simple,nt35510,tc358767},
nouveau, sun4i, mipi-dsi, mgag200, bochs, arm, komeda, vmwgfx, pl111:
Assorted small fixes and doc updates.
- vc4: Rework hdmi power up, and depend on PM.
- panel/simple: Add Samsung LTL101AL01.
- ingenic: Add JZ4760(B) support, avoid a modeset when sharpness property
is unchanged, and use the new PM ops.
- Revert some amdgpu commits that cause garbaged graphics when starting
X, and reapply them with the real problem fixed.
- Completely rework vc4 init to use managed helpers.
- Rename via_drv to via_dri1, and move all stuff there only used by the
dri1 implementation in preperation for atomic modeset.
- Use regmap bulk write in ssd130x.
- Power sequence and clock updates to it6505.
- Split panel-sitrox-st7701 init sequence and rework mode programming code.
- virtio: Improve error and edge conditions handling, and convert to use managed
helpers.
- Add Samsung LTL101AL01, B120XAN01.0, R140NWF5 RH, DMT028VGHMCMI-1A T, panels.
- Add generic fbdev support to komeda.
- Split mgag200 modeset handling to make it more model-specific.
- Convert simpledrm to use atomic helpers.
- Improve udl suspend/disconnect handling.
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
From: Maarten Lankhorst <maarten.lankhorst@linux.intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/f0c71766-61e8-19b7-763a-5fbcdefc633d@linux.intel.com
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pci_ids.h
There are already three places in kernel which define
PCI_VENDOR_ID_MICROSOFT and two for PCI_DEVICE_ID_HYPERV_VIDEO and
there's a need to use these from core VMBus code. Move the defines where
they belong.
No functional change.
Reviewed-by: Michael Kelley <mikelley@microsoft.com>
Acked-by: Bjorn Helgaas <bhelgaas@google.com> # pci_ids.h
Signed-off-by: Vitaly Kuznetsov <vkuznets@redhat.com>
Link: https://lore.kernel.org/r/20220827130345.1320254-2-vkuznets@redhat.com
Signed-off-by: Wei Liu <wei.liu@kernel.org>
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Similar to HDMI, DP uses audio infoframes as well which are structured
very similar to the HDMI ones.
This patch adds a helper function to pack the HDMI audio infoframe for
DP, called hdmi_audio_infoframe_pack_for_dp().
hdmi_audio_infoframe_pack_only() is split into two parts. One of them
packs the payload only and can be used for HDMI and DP.
Also constify the frame parameter in hdmi_audio_infoframe_check() as
it is passed to hdmi_audio_infoframe_check_only() which expects a const.
Signed-off-by: Markus Schneider-Pargmann <msp@baylibre.com>
Signed-off-by: Guillaume Ranquet <granquet@baylibre.com>
Signed-off-by: Bo-Chen Chen <rex-bc.chen@mediatek.com>
Reviewed-by: AngeloGioacchino Del Regno <angelogioacchino.delregno@collabora.com>
Signed-off-by: Dmitry Osipenko <dmitry.osipenko@collabora.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20220901044149.16782-3-rex-bc.chen@mediatek.com
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fbcon_do_set_font() calls vc_resize() when font size is changed.
However, if if vc_resize() failed, current implementation doesn't
revert changes for font size, and this causes inconsistent state.
syzbot reported unable to handle page fault due to this issue [1].
syzbot's repro uses fault injection which cause failure for memory
allocation, so vc_resize() failed.
This patch fixes this issue by properly revert changes for font
related date when vc_resize() failed.
Link: https://syzkaller.appspot.com/bug?id=3443d3a1fa6d964dd7310a0cb1696d165a3e07c4 [1]
Reported-by: syzbot+a168dbeaaa7778273c1b@syzkaller.appspotmail.com
Signed-off-by: Shigeru Yoshida <syoshida@redhat.com>
Signed-off-by: Helge Deller <deller@gmx.de>
CC: stable@vger.kernel.org # 5.15+
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Follow the advice of the below link and prefer 'strscpy' in this
subsystem. Conversion is 1:1 because the return value is not used.
Generated by a coccinelle script.
Link: https://lore.kernel.org/r/CAHk-=wgfRnXz0W3D37d01q3JFkr_i_uTL=V6A6G1oUZcprmknw@mail.gmail.com/
Signed-off-by: Wolfram Sang <wsa+renesas@sang-engineering.com>
Signed-off-by: Helge Deller <deller@gmx.de>
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The print function dev_err() is redundant because platform_get_irq()
already prints an error.
Link: https://bugzilla.openanolis.cn/show_bug.cgi?id=1957
Reported-by: Abaci Robot <abaci@linux.alibaba.com>
Signed-off-by: Jiapeng Chong <jiapeng.chong@linux.alibaba.com>
Signed-off-by: Helge Deller <deller@gmx.de>
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