the GPE dispatcher.
This facility can be used to prevent such uncontrolled
GPE floodings.
- Format: <byte>
+ Format: <byte> or <bitmap-list>
acpi_no_auto_serialize [HW,ACPI]
Disable auto-serialization of AML methods
allowed anymore to lift isolation
requirements as needed. This option
does not override iommu=pt
+ force_enable - Force enable the IOMMU on platforms known
+ to be buggy with IOMMU enabled. Use this
+ option with care.
amd_iommu_dump= [HW,X86-64]
Enable AMD IOMMU driver option to dump the ACPI table
ccw_timeout_log [S390]
See Documentation/s390/common_io.rst for details.
- cgroup_disable= [KNL] Disable a particular controller
- Format: {name of the controller(s) to disable}
+ cgroup_disable= [KNL] Disable a particular controller or optional feature
+ Format: {name of the controller(s) or feature(s) to disable}
The effects of cgroup_disable=foo are:
- foo isn't auto-mounted if you mount all cgroups in
a single hierarchy
- foo isn't visible as an individually mountable
subsystem
+ - if foo is an optional feature then the feature is
+ disabled and corresponding cgroup files are not
+ created
{Currently only "memory" controller deal with this and
cut the overhead, others just disable the usage. So
only cgroup_disable=memory is actually worthy}
+ Specifying "pressure" disables per-cgroup pressure
+ stall information accounting feature
cgroup_no_v1= [KNL] Disable cgroup controllers and named hierarchies in v1
Format: { { controller | "all" | "named" }
loops can be debugged more effectively on production
systems.
+ clocksource.max_cswd_read_retries= [KNL]
+ Number of clocksource_watchdog() retries due to
+ external delays before the clock will be marked
+ unstable. Defaults to three retries, that is,
+ four attempts to read the clock under test.
+
+ clocksource.verify_n_cpus= [KNL]
+ Limit the number of CPUs checked for clocksources
+ marked with CLOCK_SOURCE_VERIFY_PERCPU that
+ are marked unstable due to excessive skew.
+ A negative value says to check all CPUs, while
+ zero says not to check any. Values larger than
+ nr_cpu_ids are silently truncated to nr_cpu_ids.
+ The actual CPUs are chosen randomly, with
+ no replacement if the same CPU is chosen twice.
+
+ clocksource-wdtest.holdoff= [KNL]
+ Set the time in seconds that the clocksource
+ watchdog test waits before commencing its tests.
+ Defaults to zero when built as a module and to
+ 10 seconds when built into the kernel.
+
clearcpuid=BITNUM[,BITNUM...] [X86]
Disable CPUID feature X for the kernel. See
arch/x86/include/asm/cpufeatures.h for the valid bit
the driver will use only 32-bit accessors to read/write
the device registers.
+ liteuart,<addr>
+ Start an early console on a litex serial port at the
+ specified address. The serial port must already be
+ setup and configured. Options are not yet supported.
+
meson,<addr>
Start an early, polled-mode console on a meson serial
port at the specified address. The serial port must
Documentation/admin-guide/mm/hugetlbpage.rst.
Format: size[KMG]
+ hugetlb_free_vmemmap=
+ [KNL] Reguires CONFIG_HUGETLB_PAGE_FREE_VMEMMAP
+ enabled.
+ Allows heavy hugetlb users to free up some more
+ memory (6 * PAGE_SIZE for each 2MB hugetlb page).
+ Format: { on | off (default) }
+
+ on: enable the feature
+ off: disable the feature
+
+ Built with CONFIG_HUGETLB_PAGE_FREE_VMEMMAP_DEFAULT_ON=y,
+ the default is on.
+
+ This is not compatible with memory_hotplug.memmap_on_memory.
+ If both parameters are enabled, hugetlb_free_vmemmap takes
+ precedence over memory_hotplug.memmap_on_memory.
+
hung_task_panic=
[KNL] Should the hung task detector generate panics.
Format: 0 | 1
forcing Dual Address Cycle for PCI cards supporting
greater than 32-bit addressing.
- iommu.strict= [ARM64] Configure TLB invalidation behaviour
+ iommu.strict= [ARM64, X86] Configure TLB invalidation behaviour
Format: { "0" | "1" }
0 - Lazy mode.
Request that DMA unmap operations use deferred
1 - Strict mode (default).
DMA unmap operations invalidate IOMMU hardware TLBs
synchronously.
+ Note: on x86, the default behaviour depends on the
+ equivalent driver-specific parameters, but a strict
+ mode explicitly specified by either method takes
+ precedence.
iommu.passthrough=
[ARM64, X86] Configure DMA to bypass the IOMMU by default.
Note that even when enabled, there are a few cases where
the feature is not effective.
+ This is not compatible with hugetlb_free_vmemmap. If
+ both parameters are enabled, hugetlb_free_vmemmap takes
+ precedence over memory_hotplug.memmap_on_memory.
+
memtest= [KNL,X86,ARM,PPC,RISCV] Enable memtest
Format: <integer>
default : 0 <disable>
noclflush [BUGS=X86] Don't use the CLFLUSH instruction
- nodelayacct [KNL] Disable per-task delay accounting
+ delayacct [KNL] Enable per-task delay accounting
nodsp [SH] Disable hardware DSP at boot time.
nr_uarts= [SERIAL] maximum number of UARTs to be registered.
+ numa=off [KNL, ARM64, PPC, RISCV, SPARC, X86] Disable NUMA, Only
+ set up a single NUMA node spanning all memory.
+
numa_balancing= [KNL,ARM64,PPC,RISCV,S390,X86] Enable or disable automatic
NUMA balancing.
Allowed values are enable and disable
off: turn off poisoning (default)
on: turn on poisoning
+ page_reporting.page_reporting_order=
+ [KNL] Minimal page reporting order
+ Format: <integer>
+ Adjust the minimal page reporting order. The page
+ reporting is disabled when it exceeds (MAX_ORDER-1).
+
panic= [KNL] Kernel behaviour on panic: delay <timeout>
timeout > 0: seconds before rebooting
timeout = 0: wait forever
whole algorithm to behave better in low memory
condition.
+ rcutree.rcu_delay_page_cache_fill_msec= [KNL]
+ Set the page-cache refill delay (in milliseconds)
+ in response to low-memory conditions. The range
+ of permitted values is in the range 0:100000.
+
rcutree.jiffies_till_first_fqs= [KNL]
Set delay from grace-period initialization to
first attempt to force quiescent states.
Reserves a hole at the top of the kernel virtual
address space.
- reservelow= [X86]
- Format: nn[K]
- Set the amount of memory to reserve for BIOS at
- the bottom of the address space.
-
reset_devices [KNL] Force drivers to reset the underlying device
during initialization.
exception. Default behavior is by #AC if
both features are enabled in hardware.
+ ratelimit:N -
+ Set system wide rate limit to N bus locks
+ per second for bus lock detection.
+ 0 < N <= 1000.
+
+ N/A for split lock detection.
+
+
If an #AC exception is hit in the kernel or in
firmware (i.e. not while executing in user mode)
the kernel will oops in either "warn" or "fatal"
Note, echoing 1 into this file without the
tracepoint_printk kernel cmdline option has no effect.
+ The tp_printk_stop_on_boot (see below) can also be used
+ to stop the printing of events to console at
+ late_initcall_sync.
+
** CAUTION **
Having tracepoints sent to printk() and activating high
frequency tracepoints such as irq or sched, can cause
the system to live lock.
+ tp_printk_stop_on_boot[FTRACE]
+ When tp_printk (above) is set, it can cause a lot of noise
+ on the console. It may be useful to only include the
+ printing of events during boot up, as user space may
+ make the system inoperable.
+
+ This command line option will stop the printing of events
+ to console at the late_initcall_sync() time frame.
+
traceoff_on_warning
[FTRACE] enable this option to disable tracing when a
warning is hit. This turns off "tracing_on". Tracing can
clock-names:
description: N = 0 is allowed for SoCs without internal baud clock mux.
minItems: 2
- maxItems: 5
items:
- const: uart
- pattern: '^clk_uart_baud[0-3]$'
unevaluatedProperties: false
allOf:
- - $ref: /schemas/serial.yaml#
+ - $ref: serial.yaml#
- if:
properties:
S: Maintained
-F: Documentation/ABI/testing/sysfs-bus-counter-104-quad-8
F: drivers/counter/104-quad-8.c
ACCES PCI-IDIO-16 GPIO DRIVER
B: https://bugzilla.kernel.org
F: drivers/acpi/acpi_video.c
+ACPI VIOT DRIVER
+S: Maintained
+F: drivers/acpi/viot.c
+F: include/linux/acpi_viot.h
+
ACPI WMI DRIVER
S: Orphan
S: Maintained
F: drivers/mailbox/mailbox-altera.c
+ALTERA MSGDMA IP CORE DRIVER
+S: Odd Fixes
+F: Documentation/devicetree/bindings/dma/altr,msgdma.yaml
+F: drivers/dma/altera-msgdma.c
+
ALTERA PIO DRIVER
S: Supported
-T: git git://people.freedesktop.org/~agd5f/linux
+T: git https://gitlab.freedesktop.org/agd5f/linux.git
F: drivers/gpu/drm/amd/display/
AMD FAM15H PROCESSOR POWER MONITORING DRIVER
S: Supported
-T: git git://people.freedesktop.org/~agd5f/linux
+T: git https://gitlab.freedesktop.org/agd5f/linux.git
F: drivers/gpu/drm/amd/pm/powerplay/
AMD SEATTLE DEVICE TREE SUPPORT
AMD SENSOR FUSION HUB DRIVER
-M: Sandeep Singh <sandeep.singh@amd.com>
+M: Basavaraj Natikar <basavaraj.natikar@amd.com>
S: Maintained
F: Documentation/hid/amd-sfh*
F: drivers/net/ethernet/aquantia/atlantic/aq_ptp*
ARASAN NAND CONTROLLER DRIVER
S: Maintained
F: drivers/amba/
F: include/linux/amba/bus.h
+ARM PRIMECELL PL35X NAND CONTROLLER DRIVER
+S: Maintained
+F: Documentation/devicetree/bindings/mtd/arm,pl353-nand-r2p1.yaml
+F: drivers/mtd/nand/raw/pl35x-nand-controller.c
+
+ARM PRIMECELL PL35X SMC DRIVER
+S: Maintained
+F: Documentation/devicetree/bindings/mtd/arm,pl353-smc.yaml
+F: drivers/memory/pl353-smc.c
+
ARM PRIMECELL CLCD PL110 DRIVER
S: Odd Fixes
T: git https://github.com/AsahiLinux/linux.git
F: Documentation/devicetree/bindings/arm/apple.yaml
F: Documentation/devicetree/bindings/interrupt-controller/apple,aic.yaml
+F: Documentation/devicetree/bindings/pinctrl/apple,pinctrl.yaml
F: arch/arm64/boot/dts/apple/
F: drivers/irqchip/irq-apple-aic.c
F: include/dt-bindings/interrupt-controller/apple-aic.h
+F: include/dt-bindings/pinctrl/apple.h
ARM/ARTPEC MACHINE SUPPORT
F: Documentation/devicetree/bindings/pinctrl/cortina,gemini-pinctrl.txt
F: Documentation/devicetree/bindings/rtc/faraday,ftrtc010.txt
F: arch/arm/mach-gemini/
+F: drivers/crypto/gemini/
F: drivers/net/ethernet/cortina/
F: drivers/pinctrl/pinctrl-gemini.c
F: drivers/rtc/rtc-ftrtc010.c
ARM/CZ.NIC TURRIS SUPPORT
S: Maintained
W: https://www.turris.cz/
F: Documentation/ABI/testing/debugfs-moxtet
F: Documentation/devicetree/bindings/timer/intel,ixp4xx-timer.yaml
F: arch/arm/mach-ixp4xx/
F: drivers/clocksource/timer-ixp4xx.c
+F: drivers/crypto/ixp4xx_crypto.c
F: drivers/gpio/gpio-ixp4xx.c
F: drivers/irqchip/irq-ixp4xx.c
F: include/linux/irqchip/irq-ixp4xx.h
BROADCOM NETXTREME-E ROCE DRIVER
S: Supported
T: git git://git.kernel.org/pub/scm/linux/kernel/git/mkl/linux-can.git
T: git git://git.kernel.org/pub/scm/linux/kernel/git/mkl/linux-can-next.git
F: Documentation/devicetree/bindings/net/can/
+F: Documentation/devicetree/bindings/phy/ti,tcan104x-can.yaml
F: drivers/net/can/
+F: drivers/phy/phy-can-transceiver.c
F: include/linux/can/bittiming.h
F: include/linux/can/dev.h
F: include/linux/can/led.h
F: scripts/clang-tools/
K: \b(?i:clang|llvm)\b
+CLANG CONTROL FLOW INTEGRITY SUPPORT
+S: Supported
+B: https://github.com/ClangBuiltLinux/linux/issues
+T: git git://git.kernel.org/pub/scm/linux/kernel/git/kees/linux.git for-next/clang/features
+F: include/linux/cfi.h
+F: kernel/cfi.c
+
CLEANCACHE API
F: drivers/video/console/
F: include/linux/console*
+CONTEXT TRACKING
+S: Maintained
+F: kernel/context_tracking.c
+F: include/linux/context_tracking*
+
CONTROL GROUP (CGROUP)
S: Maintained
-F: Documentation/ABI/testing/sysfs-bus-counter*
+F: Documentation/ABI/testing/sysfs-bus-counter
F: Documentation/driver-api/generic-counter.rst
F: drivers/counter/
F: include/linux/counter.h
F: drivers/input/touchscreen/cy8ctma140.c
CYTTSP TOUCHSCREEN DRIVER
-S: Supported
+S: Maintained
F: drivers/input/touchscreen/cyttsp*
-F: include/linux/input/cyttsp.h
D-LINK DIR-685 TOUCHKEYS DRIVER
S: Maintained
-F: drivers/platform/x86/dell/dell-wmi.c
+F: drivers/platform/x86/dell/dell-wmi-base.c
+
+DELL WMI HARDWARE PRIVACY SUPPORT
+S: Maintained
+F: drivers/platform/x86/dell/dell-wmi-privacy.c
DELTA ST MEDIA DRIVER
T: git git://linuxtv.org/media_tree.git
F: drivers/media/platform/sti/delta
+DELTA DPS920AB PSU DRIVER
+S: Maintained
+F: Documentation/hwmon/dps920ab.rst
+F: drivers/hwmon/pmbus/dps920ab.c
+
DENALI NAND DRIVER
S: Orphan
F: drivers/gpu/drm/savage/
F: include/uapi/drm/savage_drm.h
+DRM DRIVER FOR SIMPLE FRAMEBUFFERS
+S: Maintained
+T: git git://anongit.freedesktop.org/drm/drm-misc
+F: drivers/gpu/drm/tiny/simpledrm.c
+
DRM DRIVER FOR SIS VIDEO CARDS
S: Orphan / Obsolete
F: drivers/gpu/drm/sis/
F: Documentation/devicetree/bindings/display/hisilicon/
F: drivers/gpu/drm/hisilicon/
+DRM DRIVER FOR HYPERV SYNTHETIC VIDEO DEVICE
+S: Maintained
+T: git git://anongit.freedesktop.org/drm/drm-misc
+F: drivers/gpu/drm/hyperv
+
DRM DRIVERS FOR LIMA
S: Maintained
-T: git git://people.freedesktop.org/~agd5f/linux
+T: git git://anongit.freedesktop.org/drm/drm-misc
F: drivers/gpu/drm/ttm/
F: include/drm/ttm/
F: fs/ecryptfs/
EDAC-AMD64
-S: Maintained
+S: Supported
F: drivers/edac/amd64_edac*
+F: drivers/edac/mce_amd*
EDAC-ARMADA
EMULEX ONECONNECT ROCE DRIVER
S: Odd Fixes
W: http://www.broadcom.com
W: http://www.broadcom.com
F: drivers/scsi/lpfc/
+EMULEX/BROADCOM EFCT FC/FCOE SCSI TARGET DRIVER
+S: Supported
+W: http://www.broadcom.com
+F: drivers/scsi/elx/
+
ENE CB710 FLASH CARD READER DRIVER
S: Maintained
EROFS FILE SYSTEM
S: Maintained
T: git git://git.kernel.org/pub/scm/linux/kernel/git/xiang/erofs.git
F: Documentation/devicetree/bindings/net/qca,ar803x.yaml
F: Documentation/networking/phy.rst
F: drivers/net/mdio/
+F: drivers/net/mdio/acpi_mdio.c
+F: drivers/net/mdio/fwnode_mdio.c
F: drivers/net/mdio/of_mdio.c
F: drivers/net/pcs/
F: drivers/net/phy/
S: Maintained
-F: Documentation/ABI/testing/sysfs-bus-counter-ftm-quaddec
F: Documentation/devicetree/bindings/counter/ftm-quaddec.txt
F: drivers/counter/ftm-quaddec.c
S: Maintained
F: drivers/input/joystick/fsia6b.c
+FOCUSRITE SCARLETT GEN 2/3 MIXER DRIVER
+S: Maintained
+T: git git://git.kernel.org/pub/scm/linux/kernel/git/tiwai/sound.git
+F: sound/usb/mixer_scarlett_gen2.c
+
FORCEDETH GIGABIT ETHERNET DRIVER
FREESCALE CAAM (Cryptographic Acceleration and Assurance Module) DRIVER
-M: Aymen Sghaier <aymen.sghaier@nxp.com>
+M: Pankaj Gupta <pankaj.gupta@nxp.com>
S: Maintained
F: Documentation/devicetree/bindings/crypto/fsl-sec4.txt
F: include/linux/fs_enet_pd.h
FREESCALE SOC SOUND DRIVERS
S: Supported
F: scripts/gdb/
+GEMINI CRYPTO DRIVER
+S: Maintained
+F: drivers/crypto/gemini/
+
GEMTEK FM RADIO RECEIVER DRIVER
S: Maintained
F: drivers/input/touchscreen/resistive-adc-touch.c
+GENERIC STRING LIBRARY
+S: Maintained
+F: lib/string.c
+F: lib/string_helpers.c
+F: lib/test_string.c
+F: lib/test-string_helpers.c
+
GENERIC UIO DRIVER FOR PCI DEVICES
W: http://www.hisilicon.com
F: drivers/spi/spi-hisi-kunpeng.c
+HISILICON SPMI CONTROLLER DRIVER FOR HIKEY 970
+S: Maintained
+F: Documentation/devicetree/bindings/spmi/hisilicon,hisi-spmi-controller.yaml
+F: drivers/spmi/hisi-spmi-controller.c
+
HISILICON STAGING DRIVERS FOR HIKEY 960/970
S: Maintained
S: Maintained
F: drivers/i2c/busses/i2c-icy.c
-IDE SUBSYSTEM
-S: Maintained
-Q: http://patchwork.ozlabs.org/project/linux-ide/list/
-T: git git://git.kernel.org/pub/scm/linux/kernel/git/davem/ide.git
-F: Documentation/ide/
-F: drivers/ide/
-F: include/linux/ide.h
-
-IDE/ATAPI DRIVERS
-S: Orphan
-F: Documentation/cdrom/ide-cd.rst
-F: drivers/ide/ide-cd*
-
IDEAPAD LAPTOP EXTRAS DRIVER
S: Maintained
-F: Documentation/devicetree/bindings/iio/multiplexer/io-channel-mux.txt
+F: Documentation/devicetree/bindings/iio/multiplexer/io-channel-mux.yaml
F: drivers/iio/multiplexer/iio-mux.c
IIO SCMI BASED DRIVER
F: drivers/net/ethernet/intel/
F: drivers/net/ethernet/intel/*/
F: include/linux/avf/virtchnl.h
+F: include/linux/net/intel/iidc.h
+
+INTEL ETHERNET PROTOCOL DRIVER FOR RDMA
+S: Supported
+F: drivers/infiniband/hw/irdma/
+F: include/uapi/rdma/irdma-abi.h
INTEL FRAMEBUFFER DRIVER (excluding 810 and 815)
F: Documentation/userspace-api/media/v4l/pixfmt-meta-intel-ipu3.rst
F: drivers/staging/media/ipu3/
+INTEL IXP4XX CRYPTO SUPPORT
+S: Maintained
+F: drivers/crypto/ixp4xx_crypto.c
+
INTEL IXP4XX QMGR, NPE, ETHERNET and HSS SUPPORT
S: Maintained
F: drivers/mfd/intel-m10-bmc.c
F: include/linux/mfd/intel-m10-bmc.h
-INTEL MAX 10 BMC MFD DRIVER
-S: Maintained
-F: Documentation/ABI/testing/sysfs-driver-intel-m10-bmc
-F: Documentation/hwmon/intel-m10-bmc-hwmon.rst
-F: drivers/hwmon/intel-m10-bmc-hwmon.c
-F: drivers/mfd/intel-m10-bmc.c
-F: include/linux/mfd/intel-m10-bmc.h
-
INTEL MENLOW THERMAL DRIVER
S: Supported
F: drivers/cpufreq/intel_pstate.c
-INTEL RDMA RNIC DRIVER
-S: Supported
-F: drivers/infiniband/hw/i40iw/
-F: include/uapi/rdma/i40iw-abi.h
+INTEL QUADRATURE ENCODER PERIPHERAL DRIVER
+F: drivers/counter/intel-qep.c
INTEL SCU DRIVERS
F: arch/x86/include/asm/intel_scu_ipc.h
F: drivers/platform/x86/intel_scu_*
+INTEL SKYLAKE INT3472 ACPI DEVICE DRIVER
+S: Maintained
+F: drivers/platform/x86/intel/int3472/
+
INTEL SPEED SELECT TECHNOLOGY
F: include/linux/firmware/intel/stratix10-svc-client.h
INTEL TELEMETRY DRIVER
+M: Rajneesh Bhardwaj <irenic.rajneesh@gmail.com>
S: Maintained
S: Maintained
F: drivers/platform/x86/intel-wmi-thunderbolt.c
+INTEL WWAN IOSM DRIVER
+S: Maintained
+F: drivers/net/wwan/iosm/
+
INTEL(R) TRACE HUB
S: Supported
T: git git://linuxtv.org/anttip/media_tree.git
F: drivers/media/tuners/it913x*
+ITE IT66121 HDMI BRIDGE DRIVER
+S: Maintained
+T: git git://anongit.freedesktop.org/drm/drm-misc
+F: Documentation/devicetree/bindings/display/bridge/ite,it66121.yaml
+F: drivers/gpu/drm/bridge/ite-it66121.c
+
IVTV VIDEO4LINUX DRIVER
F: arch/arm64/include/uapi/asm/kvm*
F: arch/arm64/kvm/
F: include/kvm/arm_*
+F: tools/testing/selftests/kvm/*/aarch64/
+F: tools/testing/selftests/kvm/aarch64/
KERNEL VIRTUAL MACHINE FOR MIPS (KVM/mips)
F: drivers/mailbox/
F: include/linux/mailbox_client.h
F: include/linux/mailbox_controller.h
+F: include/dt-bindings/mailbox/
F: Documentation/devicetree/bindings/mailbox/
MAILBOX ARM MHUv2
S: Maintained
F: Documentation/devicetree/bindings/phy/phy-mvebu-comphy.txt
-F: Documentation/devicetree/bindings/phy/phy-mvebu-utmi.txt
+F: Documentation/devicetree/bindings/phy/marvell,armada-3700-utmi-phy.yaml
F: drivers/phy/marvell/phy-mvebu-a3700-comphy.c
F: drivers/phy/marvell/phy-mvebu-a3700-utmi.c
MARVELL MV88X3310 PHY DRIVER
S: Maintained
F: drivers/net/phy/marvell10g.c
MEDIA DRIVERS FOR FREESCALE IMX7
S: Maintained
T: git git://linuxtv.org/media_tree.git
S: Supported
T: git git://linuxtv.org/media_tree.git
F: Documentation/devicetree/bindings/media/renesas,csi2.yaml
+F: Documentation/devicetree/bindings/media/renesas,isp.yaml
F: Documentation/devicetree/bindings/media/renesas,vin.yaml
F: drivers/media/platform/rcar-vin/
F: include/linux/pagewalk.h
F: include/linux/vmalloc.h
F: mm/
+F: tools/testing/selftests/vm/
MEMORY TECHNOLOGY DEVICES (MTD)
S: Supported
-F: Documentation/devicetree/bindings/media/atmel-isc.txt
+F: Documentation/devicetree/bindings/media/atmel,isc.yaml
+F: Documentation/devicetree/bindings/media/microchip,xisc.yaml
F: drivers/media/platform/atmel/atmel-isc-base.c
F: drivers/media/platform/atmel/atmel-isc-regs.h
F: drivers/media/platform/atmel/atmel-isc.h
F: drivers/media/platform/atmel/atmel-sama5d2-isc.c
+F: drivers/media/platform/atmel/atmel-sama7g5-isc.c
F: include/linux/atmel-isc-media.h
MICROCHIP ISI DRIVER
S: Maintained
W: https://github.com/linux-surface/surface-aggregator-module
-C: irc://chat.freenode.net/##linux-surface
+C: irc://irc.libera.chat/linux-surface
F: Documentation/driver-api/surface_aggregator/
F: drivers/platform/surface/aggregator/
F: drivers/platform/surface/surface_acpi_notify.c
F: drivers/media/pci/meye/
F: include/uapi/linux/meye.h
+MOTORCOMM PHY DRIVER
+S: Maintained
+F: drivers/net/phy/motorcomm.c
+
MOXA SMARTIO/INDUSTIO/INTELLIO SERIAL CARD
- S: Orphan
+ S: Maintained
F: Documentation/driver-api/serial/moxa-smartio.rst
F: drivers/tty/mxser.*
F: drivers/net/ethernet/natsemi/natsemi.c
NCR 5380 SCSI DRIVERS
-M: Finn Thain <fthain@telegraphics.com.au>
+M: Finn Thain <fthain@linux-m68k.org>
S: Maintained
W: http://www.iptables.org/
W: http://www.nftables.org/
Q: http://patchwork.ozlabs.org/project/netfilter-devel/list/
+C: irc://irc.libera.chat/netfilter
T: git git://git.kernel.org/pub/scm/linux/kernel/git/pablo/nf.git
T: git git://git.kernel.org/pub/scm/linux/kernel/git/pablo/nf-next.git
F: include/linux/netfilter*
F: fs/ntfs/
NUBUS SUBSYSTEM
-M: Finn Thain <fthain@telegraphics.com.au>
+M: Finn Thain <fthain@linux-m68k.org>
S: Maintained
F: arch/*/include/asm/nubus.h
S: Maintained
F: drivers/net/dsa/sja1105
+F: drivers/net/pcs/pcs-xpcs-nxp.c
NXP TDA998X DRM DRIVER
F: Documentation/devicetree/bindings/sound/tfa9879.txt
F: sound/soc/codecs/tfa9879*
+NXP/Goodix TFA989X (TFA1) DRIVER
+S: Maintained
+F: Documentation/devicetree/bindings/sound/nxp,tfa989x.yaml
+F: sound/soc/codecs/tfa989x.c
+
NXP-NCI NFC DRIVER
S: Maintained
-F: Documentation/devicetree/bindings/gpio/gpio-omap.txt
+F: Documentation/devicetree/bindings/gpio/ti,omap-gpio.yaml
F: drivers/gpio/gpio-omap.c
OMAP HARDWARE SPINLOCK SUPPORT
S: Maintained
-F: Documentation/devicetree/bindings/i2c/i2c-omap.txt
+F: Documentation/devicetree/bindings/i2c/ti,omap4-i2c.yaml
F: drivers/i2c/busses/i2c-omap.c
OMAP IMAGING SUBSYSTEM (OMAP3 ISP and OMAP4 ISS)
F: Documentation/devicetree/bindings/opp/qcom-nvmem-cpufreq.txt
F: drivers/cpufreq/qcom-cpufreq-nvmem.c
+QUALCOMM CRYPTO DRIVERS
+S: Maintained
+F: drivers/crypto/qce/
+
QUALCOMM EMAC GIGABIT ETHERNET DRIVER
RADEON and AMDGPU DRM DRIVERS
S: Supported
T: git https://gitlab.freedesktop.org/agd5f/linux.git
F: include/uapi/linux/rpmsg.h
F: samples/rpmsg/
+REMOTE PROCESSOR MESSAGING (RPMSG) WWAN CONTROL DRIVER
+S: Maintained
+F: drivers/net/wwan/rpmsg_wwan_ctrl.c
+
RENESAS CLOCK DRIVERS
RENESAS EMEV2 I2C DRIVER
S: Supported
-F: Documentation/devicetree/bindings/i2c/renesas,iic-emev2.txt
+F: Documentation/devicetree/bindings/i2c/renesas,iic-emev2.yaml
F: drivers/i2c/busses/i2c-emev2.c
RENESAS ETHERNET DRIVERS
RENESAS R-CAR I2C DRIVERS
S: Supported
-F: Documentation/devicetree/bindings/i2c/renesas,i2c.txt
-F: Documentation/devicetree/bindings/i2c/renesas,iic.txt
+F: Documentation/devicetree/bindings/i2c/renesas,rcar-i2c.yaml
+F: Documentation/devicetree/bindings/i2c/renesas,rmobile-iic.yaml
F: drivers/i2c/busses/i2c-rcar.c
F: drivers/i2c/busses/i2c-sh_mobile.c
RENESAS RIIC DRIVER
S: Supported
-F: Documentation/devicetree/bindings/i2c/renesas,riic.txt
+F: Documentation/devicetree/bindings/i2c/renesas,riic.yaml
F: drivers/i2c/busses/i2c-riic.c
RENESAS USB PHY DRIVER
N: riscv
K: riscv
+RISC-V/MICROCHIP POLARFIRE SOC SUPPORT
+S: Supported
+F: drivers/mailbox/mailbox-mpfs.c
+F: drivers/soc/microchip/
+F: include/soc/microchip/mpfs.h
+
RNBD BLOCK DRIVERS
S: Maintained
F: Documentation/devicetree/bindings/iio/chemical/sensirion,sps30.yaml
F: drivers/iio/chemical/sps30.c
+F: drivers/iio/chemical/sps30_i2c.c
+F: drivers/iio/chemical/sps30_serial.c
SERIAL DEVICE BUS
SHARED MEMORY COMMUNICATIONS (SMC) SOCKETS
S: Supported
W: http://www.ibm.com/developerworks/linux/linux390/
F: drivers/ssb/
F: include/linux/ssb/
+SONY IMX208 SENSOR DRIVER
+S: Maintained
+T: git git://linuxtv.org/media_tree.git
+F: drivers/media/i2c/imx208.c
+
SONY IMX214 SENSOR DRIVER
S: Supported
F: drivers/net/pcs/pcs-xpcs.c
+F: drivers/net/pcs/pcs-xpcs.h
F: include/linux/pcs/pcs-xpcs.h
SYNOPSYS DESIGNWARE I2C DRIVER
S: Maintained
-F: Documentation/devicetree/bindings/arm/arm,sc[mp]i.txt
+F: Documentation/devicetree/bindings/firmware/arm,sc[mp]i.yaml
F: drivers/clk/clk-sc[mp]i.c
F: drivers/cpufreq/sc[mp]i-cpufreq.c
F: drivers/firmware/arm_scmi/
S: Maintained
F: Documentation/devicetree/bindings/arm/keystone/ti,k3-sci-common.yaml
F: Documentation/devicetree/bindings/arm/keystone/ti,sci.txt
-F: Documentation/devicetree/bindings/clock/ti,sci-clk.txt
+F: Documentation/devicetree/bindings/clock/ti,sci-clk.yaml
F: Documentation/devicetree/bindings/interrupt-controller/ti,sci-inta.yaml
F: Documentation/devicetree/bindings/interrupt-controller/ti,sci-intr.yaml
-F: Documentation/devicetree/bindings/reset/ti,sci-reset.txt
-F: Documentation/devicetree/bindings/soc/ti/sci-pm-domain.txt
+F: Documentation/devicetree/bindings/reset/ti,sci-reset.yaml
+F: Documentation/devicetree/bindings/soc/ti/sci-pm-domain.yaml
F: drivers/clk/keystone/sci-clk.c
F: drivers/firmware/ti_sci*
F: drivers/irqchip/irq-ti-sci-inta.c
F: Documentation/hwmon/tps23861.rst
F: drivers/hwmon/tps23861.c
+TEXAS INSTRUMENTS' TMP117 TEMPERATURE SENSOR DRIVER
+S: Supported
+F: Documentation/devicetree/bindings/iio/temperature/ti,tmp117.yaml
+F: drivers/iio/temperature/tmp117.c
+
THANKO'S RAREMONO AM/FM/SW RADIO RECEIVER USB DRIVER
T: git git://repo.or.cz/linux-2.6/linux-acpi-2.6/ibm-acpi-2.6.git
F: drivers/platform/x86/thinkpad_acpi.c
+THINKPAD LMI DRIVER
+S: Maintained
+F: Documentation/ABI/testing/sysfs-class-firmware-attributes
+F: drivers/platform/x86/think-lmi.?
+
THUNDERBOLT DMA TRAFFIC TEST DRIVER
S: Maintained
-F: Documentation/devicetree/bindings/gpio/gpio-davinci.txt
+F: Documentation/devicetree/bindings/gpio/gpio-davinci.yaml
F: drivers/gpio/gpio-davinci.c
TI DAVINCI SERIES MEDIA DRIVER
F: Documentation/devicetree/bindings/net/nfc/trf7970a.txt
F: drivers/nfc/trf7970a.c
+TI TSC2046 ADC DRIVER
+S: Maintained
+F: Documentation/devicetree/bindings/iio/adc/ti,tsc2046.yaml
+F: drivers/iio/adc/ti-tsc2046.c
+
TI TWL4030 SERIES SOC CODEC DRIVER
F: Documentation/driver-api/serial/
F: drivers/tty/
F: drivers/tty/serial/serial_core.c
+ F: include/linux/selection.h
F: include/linux/serial.h
F: include/linux/serial_core.h
- F: include/linux/tty.h
+ F: include/linux/sysrq.h
+ F: include/linux/tty*.h
+ F: include/linux/vt.h
+ F: include/linux/vt_*.h
F: include/uapi/linux/serial.h
F: include/uapi/linux/serial_core.h
F: include/uapi/linux/tty.h
S: Maintained
F: drivers/usb/roles/intel-xhci-usb-role-switch.c
-USB IP DRIVER FOR HISILICON KIRIN
+USB IP DRIVER FOR HISILICON KIRIN 960
F: Documentation/devicetree/bindings/phy/hisilicon,hi3660-usb3.yaml
F: drivers/phy/hisilicon/phy-hi3660-usb3.c
+USB IP DRIVER FOR HISILICON KIRIN 970
+S: Maintained
+F: Documentation/devicetree/bindings/phy/hisilicon,hi3670-usb3.yaml
+F: drivers/phy/hisilicon/phy-kirin970-usb3.c
+
USB ISP116X DRIVER
F: include/linux/regulator/
K: regulator_get_optional
+VOLTAGE AND CURRENT REGULATOR IRQ HELPERS
+F: drivers/regulator/irq_helpers.c
+
VRF
T: git git://git.kernel.org/pub/scm/linux/kernel/git/pmladek/printk.git
F: Documentation/core-api/printk-formats.rst
F: lib/test_printf.c
+F: lib/test_scanf.c
F: lib/vsprintf.c
VT1211 HARDWARE MONITOR DRIVER
F: include/linux/workqueue.h
F: kernel/workqueue.c
+WWAN DRIVERS
+S: Maintained
+F: drivers/net/wwan/
+F: include/linux/wwan.h
+F: include/uapi/linux/wwan.h
+
X-POWERS AXP288 PMIC DRIVERS
S: Maintained
S: Maintained
-F: include/linux/zbud.h
F: mm/zbud.c
ZD1211RW WIRELESS DRIVER
If unsure, say N.
- config R3964
- tristate "Siemens R3964 line discipline"
- depends on TTY && BROKEN
- help
- This driver allows synchronous communication with devices using the
- Siemens R3964 packet protocol. Unless you are dealing with special
- hardware like PLCs, you are unlikely to need this.
-
- To compile this driver as a module, choose M here: the
- module will be called n_r3964.
-
- If unsure, say N.
-
config APPLICOM
tristate "Applicom intelligent fieldbus card support"
depends on PCI
To compile this driver as a module, choose M here: the
module will be called nvram.
-config RAW_DRIVER
- tristate "RAW driver (/dev/raw/rawN)"
- depends on BLOCK
- help
- The raw driver permits block devices to be bound to /dev/raw/rawN.
- Once bound, I/O against /dev/raw/rawN uses efficient zero-copy I/O.
- See the raw(8) manpage for more details.
-
- Applications should preferably open the device (eg /dev/hda1)
- with the O_DIRECT flag.
-
-config MAX_RAW_DEVS
- int "Maximum number of RAW devices to support (1-65536)"
- depends on RAW_DRIVER
- range 1 65536
- default "256"
- help
- The maximum number of RAW devices that are supported.
- Default is 256. Increase this number in case you need lots of
- raw devices.
-
config DEVPORT
bool "/dev/port character device"
depends on ISA || PCI
// SPDX-License-Identifier: GPL-2.0-only
-/**
- * ipoctal.c
- *
+/*
* driver for the GE IP-OCTAL boards
*
* Copyright (C) 2009-2012 CERN (www.cern.ch)
return char_copied;
}
- static int ipoctal_write_room(struct tty_struct *tty)
+ static unsigned int ipoctal_write_room(struct tty_struct *tty)
{
struct ipoctal_channel *channel = tty->driver_data;
return PAGE_SIZE - channel->nb_bytes;
}
- static int ipoctal_chars_in_buffer(struct tty_struct *tty)
+ static unsigned int ipoctal_chars_in_buffer(struct tty_struct *tty)
{
struct ipoctal_channel *channel = tty->driver_data;
static inline void update_tty_status(struct ser_device *ser)
{
ser->tty_status =
- ser->tty->stopped << 5 |
- ser->tty->flow_stopped << 3 |
- ser->tty->packet << 2;
+ ser->tty->flow.stopped << 5 |
+ ser->tty->flow.tco_stopped << 3 |
+ ser->tty->ctrl.packet << 2;
}
static inline void debugfs_init(struct ser_device *ser, struct tty_struct *tty)
{
#endif
static void ldisc_receive(struct tty_struct *tty, const u8 *data,
- char *flags, int count)
+ const char *flags, int count)
{
struct sk_buff *skb = NULL;
struct ser_device *ser;
rtnl_lock();
result = register_netdevice(dev);
if (result) {
+ tty_kref_put(tty);
rtnl_unlock();
free_netdev(dev);
return -ENODEV;
/* The line discipline structure. */
static struct tty_ldisc_ops caif_ldisc = {
.owner = THIS_MODULE,
+ .num = N_CAIF,
.name = "n_caif",
.open = ldisc_open,
.close = ldisc_close,
{
int ret;
- ret = tty_register_ldisc(N_CAIF, &caif_ldisc);
+ ret = tty_register_ldisc(&caif_ldisc);
if (ret < 0)
pr_err("cannot register CAIF ldisc=%d err=%d\n", N_CAIF, ret);
spin_unlock(&ser_lock);
ser_release(NULL);
cancel_work_sync(&ser_release_work);
- tty_unregister_ldisc(N_CAIF);
+ tty_unregister_ldisc(&caif_ldisc);
debugfs_remove_recursive(debugfsdir);
}
* and sent on to some IP layer for further processing.
*/
static void sixpack_receive_buf(struct tty_struct *tty,
- const unsigned char *cp, char *fp, int count)
+ const unsigned char *cp, const char *fp, int count)
{
struct sixpack *sp;
int count1;
err = 0;
break;
- case SIOCSIFHWADDR: {
- char addr[AX25_ADDR_LEN];
+ case SIOCSIFHWADDR: {
+ char addr[AX25_ADDR_LEN];
- if (copy_from_user(&addr,
- (void __user *) arg, AX25_ADDR_LEN)) {
+ if (copy_from_user(&addr,
+ (void __user *)arg, AX25_ADDR_LEN)) {
err = -EFAULT;
break;
}
netif_tx_lock_bh(dev);
memcpy(dev->dev_addr, &addr, AX25_ADDR_LEN);
netif_tx_unlock_bh(dev);
-
err = 0;
break;
}
-
default:
err = tty_mode_ioctl(tty, file, cmd, arg);
}
static struct tty_ldisc_ops sp_ldisc = {
.owner = THIS_MODULE,
+ .num = N_6PACK,
.name = "6pack",
.open = sixpack_open,
.close = sixpack_close,
printk(msg_banner);
/* Register the provided line protocol discipline */
- if ((status = tty_register_ldisc(N_6PACK, &sp_ldisc)) != 0)
+ status = tty_register_ldisc(&sp_ldisc);
+ if (status)
printk(msg_regfail, status);
return status;
}
- static const char msg_unregfail[] = KERN_ERR \
- "6pack: can't unregister line discipline (err = %d)\n";
-
static void __exit sixpack_exit_driver(void)
{
- int ret;
-
- if ((ret = tty_unregister_ldisc(N_6PACK)))
- printk(msg_unregfail, ret);
+ tty_unregister_ldisc(&sp_ldisc);
}
/* encode an AX.25 packet into 6pack */
*/
*ax->rbuff &= ~0x20;
}
- }
+ }
count = ax->rcount;
default:
count = kiss_esc(p, ax->xbuff, len);
}
- }
+ }
spin_unlock_bh(&ax->buflock);
set_bit(TTY_DO_WRITE_WAKEUP, &ax->tty->flags);
ax->tty = NULL;
unregister_netdev(ax->dev);
+ free_netdev(ax->dev);
}
/* Perform I/O control on an active ax25 channel. */
dev = ax->dev;
switch (cmd) {
- case SIOCGIFNAME:
+ case SIOCGIFNAME:
err = copy_to_user((void __user *) arg, ax->dev->name,
strlen(ax->dev->name) + 1) ? -EFAULT : 0;
break;
* and sent on to the AX.25 layer for further processing.
*/
static void mkiss_receive_buf(struct tty_struct *tty, const unsigned char *cp,
- char *fp, int count)
+ const char *fp, int count)
{
struct mkiss *ax = mkiss_get(tty);
static struct tty_ldisc_ops ax_ldisc = {
.owner = THIS_MODULE,
+ .num = N_AX25,
.name = "mkiss",
.open = mkiss_open,
.close = mkiss_close,
printk(banner);
- status = tty_register_ldisc(N_AX25, &ax_ldisc);
+ status = tty_register_ldisc(&ax_ldisc);
if (status != 0)
printk(msg_regfail, status);
return status;
}
- static const char msg_unregfail[] = KERN_ERR \
- "mkiss: can't unregister line discipline (err = %d)\n";
-
static void __exit mkiss_exit_driver(void)
{
- int ret;
-
- if ((ret = tty_unregister_ldisc(N_AX25)))
- printk(msg_unregfail, ret);
+ tty_unregister_ldisc(&ax_ldisc);
}
MODULE_DEVICE_TABLE(usb, hso_ids);
/* Sysfs attribute */
-static ssize_t hso_sysfs_show_porttype(struct device *dev,
- struct device_attribute *attr,
- char *buf)
+static ssize_t hsotype_show(struct device *dev,
+ struct device_attribute *attr, char *buf)
{
struct hso_device *hso_dev = dev_get_drvdata(dev);
char *port_name;
return sprintf(buf, "%s\n", port_name);
}
-static DEVICE_ATTR(hsotype, 0444, hso_sysfs_show_porttype, NULL);
+static DEVICE_ATTR_RO(hsotype);
static struct attribute *hso_serial_dev_attrs[] = {
&dev_attr_hsotype.attr,
}
/* how much room is there for writing */
- static int hso_serial_write_room(struct tty_struct *tty)
+ static unsigned int hso_serial_write_room(struct tty_struct *tty)
{
struct hso_serial *serial = tty->driver_data;
- int room;
+ unsigned int room;
unsigned long flags;
spin_lock_irqsave(&serial->serial_lock, flags);
}
/* how many characters in the buffer */
- static int hso_serial_chars_in_buffer(struct tty_struct *tty)
+ static unsigned int hso_serial_chars_in_buffer(struct tty_struct *tty)
{
struct hso_serial *serial = tty->driver_data;
- int chars;
unsigned long flags;
+ unsigned int chars;
/* sanity check */
if (serial == NULL)
#include <linux/console.h>
#include <linux/interrupt.h>
#include <linux/err.h>
+#include <linux/panic_notifier.h>
#include <linux/reboot.h>
#include <linux/serial.h> /* ASYNC_* flags */
#include <linux/slab.h>
/*
* Returns the amount of free space in the output buffer.
*/
- static int tty3215_write_room(struct tty_struct *tty)
+ static unsigned int tty3215_write_room(struct tty_struct *tty)
{
struct raw3215_info *raw = tty->driver_data;
/*
* Returns the number of characters in the output buffer
*/
- static int tty3215_chars_in_buffer(struct tty_struct *tty)
+ static unsigned int tty3215_chars_in_buffer(struct tty_struct *tty)
{
struct raw3215_info *raw = tty->driver_data;
*/
#define MAX_SCCB_ROOM (PAGE_SIZE - sizeof(struct sclp_buffer))
-static void sclp_rw_pm_event(struct sclp_register *reg,
- enum sclp_pm_event sclp_pm_event)
-{
- sclp_console_pm_event(sclp_pm_event);
-}
-
/* Event type structure for write message and write priority message */
static struct sclp_register sclp_rw_event = {
.send_mask = EVTYP_MSG_MASK,
- .pm_event_fn = sclp_rw_pm_event,
};
/*
/*
* Return number of characters in buffer
*/
- int
+ unsigned int
sclp_chars_in_buffer(struct sclp_buffer *buffer)
{
- int count;
+ unsigned int count;
count = buffer->char_sum;
if (buffer->current_line != NULL)
int sclp_buffer_space(struct sclp_buffer *);
int sclp_write(struct sclp_buffer *buffer, const unsigned char *, int);
int sclp_emit_buffer(struct sclp_buffer *,void (*)(struct sclp_buffer *,int));
- int sclp_chars_in_buffer(struct sclp_buffer *);
+ unsigned int sclp_chars_in_buffer(struct sclp_buffer *);
-#ifdef CONFIG_SCLP_CONSOLE
-void sclp_console_pm_event(enum sclp_pm_event sclp_pm_event);
-#else
-static inline void sclp_console_pm_event(enum sclp_pm_event sclp_pm_event) { }
-#endif
-
#endif /* __SCLP_RW_H__ */
* a string of newlines. Every newline creates a new message which
* needs 82 bytes.
*/
- static int
+ static unsigned int
sclp_tty_write_room (struct tty_struct *tty)
{
unsigned long flags;
struct list_head *l;
- int count;
+ unsigned int count;
spin_lock_irqsave(&sclp_tty_lock, flags);
count = 0;
* characters in the write buffer (will not be written as long as there is a
* final line feed missing).
*/
- static int
+ static unsigned int
sclp_tty_chars_in_buffer(struct tty_struct *tty)
{
unsigned long flags;
- struct list_head *l;
struct sclp_buffer *t;
- int count;
+ unsigned int count = 0;
spin_lock_irqsave(&sclp_tty_lock, flags);
- count = 0;
if (sclp_ttybuf != NULL)
count = sclp_chars_in_buffer(sclp_ttybuf);
- list_for_each(l, &sclp_tty_outqueue) {
- t = list_entry(l, struct sclp_buffer, list);
+ list_for_each_entry(t, &sclp_tty_outqueue, list) {
count += sclp_chars_in_buffer(t);
}
spin_unlock_irqrestore(&sclp_tty_lock, flags);
#include <linux/module.h>
#include <linux/spinlock.h>
+#include <linux/panic_notifier.h>
#include <linux/list.h>
#include <linux/wait.h>
#include <linux/timer.h>
#define SCLP_VT220_MINOR 65
#define SCLP_VT220_DRIVER_NAME "sclp_vt220"
#define SCLP_VT220_DEVICE_NAME "ttysclp"
-#define SCLP_VT220_CONSOLE_NAME "ttyS"
-#define SCLP_VT220_CONSOLE_INDEX 1 /* console=ttyS1 */
+#define SCLP_VT220_CONSOLE_NAME "ttysclp"
+#define SCLP_VT220_CONSOLE_INDEX 0 /* console=ttysclp0 */
/* Representation of a single write request */
struct sclp_vt220_request {
/* List of pending requests */
static LIST_HEAD(sclp_vt220_outqueue);
-/* Suspend mode flag */
-static int sclp_vt220_suspended;
-
/* Flag that output queue is currently running */
static int sclp_vt220_queue_running;
static int sclp_vt220_flush_later;
static void sclp_vt220_receiver_fn(struct evbuf_header *evbuf);
-static void sclp_vt220_pm_event_fn(struct sclp_register *reg,
- enum sclp_pm_event sclp_pm_event);
static int __sclp_vt220_emit(struct sclp_vt220_request *request);
static void sclp_vt220_emit_current(void);
/* Registration structure for SCLP output event buffers */
static struct sclp_register sclp_vt220_register = {
.send_mask = EVTYP_VT220MSG_MASK,
- .pm_event_fn = sclp_vt220_pm_event_fn,
};
/* Registration structure for SCLP input event buffers */
if (!list_empty(&sclp_vt220_outqueue))
request = list_entry(sclp_vt220_outqueue.next,
struct sclp_vt220_request, list);
- if (!request || sclp_vt220_suspended) {
+ if (!request) {
sclp_vt220_queue_running = 0;
spin_unlock_irqrestore(&sclp_vt220_lock, flags);
break;
}
sclp_vt220_flush_later = 0;
}
- if (sclp_vt220_queue_running || sclp_vt220_suspended)
+ if (sclp_vt220_queue_running)
goto out_unlock;
if (list_empty(&sclp_vt220_outqueue))
goto out_unlock;
if (list_empty(&sclp_vt220_empty))
sclp_console_full++;
while (list_empty(&sclp_vt220_empty)) {
- if (may_fail || sclp_vt220_suspended)
+ if (may_fail)
goto out;
if (sclp_vt220_drop_buffer())
break;
* to change as output buffers get emptied, or if the output flow
* control is acted.
*/
- static int
+ static unsigned int
sclp_vt220_write_room(struct tty_struct *tty)
{
unsigned long flags;
struct list_head *l;
- int count;
+ unsigned int count;
spin_lock_irqsave(&sclp_vt220_lock, flags);
count = 0;
/*
* Return number of buffered chars.
*/
- static int
+ static unsigned int
sclp_vt220_chars_in_buffer(struct tty_struct *tty)
{
unsigned long flags;
struct list_head *l;
struct sclp_vt220_request *r;
- int count;
+ unsigned int count = 0;
spin_lock_irqsave(&sclp_vt220_lock, flags);
- count = 0;
if (sclp_vt220_current_request != NULL)
count = sclp_vt220_chars_stored(sclp_vt220_current_request);
list_for_each(l, &sclp_vt220_outqueue) {
spin_unlock_irqrestore(&sclp_vt220_lock, flags);
}
-/*
- * Resume console: If there are cached messages, emit them.
- */
-static void sclp_vt220_resume(void)
-{
- unsigned long flags;
-
- spin_lock_irqsave(&sclp_vt220_lock, flags);
- sclp_vt220_suspended = 0;
- spin_unlock_irqrestore(&sclp_vt220_lock, flags);
- sclp_vt220_emit_current();
-}
-
-/*
- * Suspend console: Set suspend flag and flush console
- */
-static void sclp_vt220_suspend(void)
-{
- unsigned long flags;
-
- spin_lock_irqsave(&sclp_vt220_lock, flags);
- sclp_vt220_suspended = 1;
- spin_unlock_irqrestore(&sclp_vt220_lock, flags);
- __sclp_vt220_flush_buffer();
-}
-
-static void sclp_vt220_pm_event_fn(struct sclp_register *reg,
- enum sclp_pm_event sclp_pm_event)
-{
- switch (sclp_pm_event) {
- case SCLP_PM_EVENT_FREEZE:
- sclp_vt220_suspend();
- break;
- case SCLP_PM_EVENT_RESTORE:
- case SCLP_PM_EVENT_THAW:
- sclp_vt220_resume();
- break;
- }
-}
-
#ifdef CONFIG_SCLP_VT220_CONSOLE
static void
*/
#define WAKEUP_CHARS 256
-/**
+/*
* fwserial_list: list of every fw_serial created for each fw_card
* See discussion in fwserial_probe.
*/
static LIST_HEAD(fwserial_list);
static DEFINE_MUTEX(fwserial_list_mutex);
-/**
+/*
* port_table: array of tty ports allocated to each fw_card
*
* tty ports are allocated during probe when an fw_serial is first
spin_unlock_bh(&port->lock);
}
-/**
+/*
* fwtty_update_port_status - decodes & dispatches line status changes
*
* Note: in loopback, the port->lock is being held. Only use functions that
wake_up_interruptible(&port->port.delta_msr_wait);
}
-/**
+/*
* __fwtty_port_line_status - generate 'line status' for indicated port
*
* This function returns a remote 'MSR' state based on the local 'MCR' state,
return status;
}
-/**
+/*
* __fwtty_write_port_status - send the port line status to peer
*
* Note: caller must be holding the port lock.
return err;
}
-/**
+/*
* fwtty_write_port_status - same as above but locked by port lock
*/
static int fwtty_write_port_status(struct fwtty_port *port)
tty_kref_put(tty);
}
-/**
+/*
* fwtty_do_hangup - wait for ldisc to deliver all pending rx; only then hangup
*
* When the remote has finished tx, and all in-flight rx has been received and
return err;
}
-/**
+/*
* fwtty_port_handler - bus address handler for port reads/writes
- * @parameters: fw_address_callback_t as specified by firewire core interface
*
* This handler is responsible for handling inbound read/write dma from remotes.
*/
fw_send_response(card, request, rcode);
}
-/**
+/*
* fwtty_tx_complete - callback for tx dma
* @data: ignored, has no meaning for write txns
* @length: ignored, has no meaning for write txns
/* try to write as many dma transactions out as possible */
n = -EAGAIN;
- while (!tty->stopped && !tty->hw_stopped &&
+ while (!tty->flow.stopped && !tty->hw_stopped &&
!test_bit(STOP_TX, &port->flags)) {
txn = kmem_cache_alloc(fwtty_txn_cache, GFP_ATOMIC);
if (!txn) {
spin_unlock_bh(&port->lock);
}
-/**
+/*
* fwtty_port_carrier_raised: required tty_port operation
*
* This port operation is polled after a tty has been opened and is waiting for
return 0;
}
-/**
+/*
* fwtty_port_shutdown
*
* Note: the tty port core ensures this is not the console and
return (n < 0) ? 0 : n;
}
- static int fwtty_write_room(struct tty_struct *tty)
+ static unsigned int fwtty_write_room(struct tty_struct *tty)
{
struct fwtty_port *port = tty->driver_data;
- int n;
+ unsigned int n;
spin_lock_bh(&port->lock);
n = dma_fifo_avail(&port->tx_fifo);
spin_unlock_bh(&port->lock);
- fwtty_dbg(port, "%d\n", n);
+ fwtty_dbg(port, "%u\n", n);
return n;
}
- static int fwtty_chars_in_buffer(struct tty_struct *tty)
+ static unsigned int fwtty_chars_in_buffer(struct tty_struct *tty)
{
struct fwtty_port *port = tty->driver_data;
- int n;
+ unsigned int n;
spin_lock_bh(&port->lock);
n = dma_fifo_level(&port->tx_fifo);
spin_unlock_bh(&port->lock);
- fwtty_dbg(port, "%d\n", n);
+ fwtty_dbg(port, "%u\n", n);
return n;
}
}
}
-/**
+/*
* fwtty_break_ctl - start/stop sending breaks
*
* Signals the remote to start or stop generating simulated breaks.
return rcode;
}
-/**
+/*
* fwserial_claim_port - attempt to claim port @ index for peer
*
* Returns ptr to claimed port or error code (as ERR_PTR())
return port;
}
-/**
+/*
* fwserial_find_port - find avail port and claim for peer
*
* Returns ptr to claimed port or NULL if none avail
fwserial_release_port(port, false);
}
-/**
+/*
* fwserial_connect_peer - initiate virtual cable with peer
*
* Returns 0 if VIRT_CABLE_PLUG request was successfully sent,
return err;
}
-/**
+/*
* fwserial_close_port -
* HUP the tty (if the tty exists) and unregister the tty device.
* Only used by the unit driver upon unit removal to disconnect and
return NULL;
}
-/**
+/*
* __fwserial_peer_by_node_id - finds a peer matching the given generation + id
*
* If a matching peer could not be found for the specified generation/node id,
return 0;
}
-/**
+/*
* fwserial_remove_peer - remove a 'serial' unit device as a 'peer'
*
* Remove a 'peer' from its list of peers. This function is only
return err;
}
-/**
+/*
* fwserial_probe: bus probe function for firewire 'serial' unit devices
*
* A 'serial' unit device is created and probed as a result of:
return err;
}
-/**
+/*
* fwserial_remove: bus removal function for firewire 'serial' unit devices
*
* The corresponding 'peer' for this unit device is removed from the list of
mutex_unlock(&fwserial_list_mutex);
}
-/**
+/*
* fwserial_update: bus update function for 'firewire' serial unit devices
*
* Updates the new node_id and bus generation for this peer. Note that locking
return rcode;
}
-/**
+/*
* fwserial_mgmt_handler: bus address handler for mgmt requests
- * @parameters: fw_address_callback_t as specified by firewire core interface
*
* This handler is responsible for handling virtual cable requests from remotes
* for all cards.
struct hvc_iucv_private *priv;
priv = container_of(work, struct hvc_iucv_private, sndbuf_work.work);
- if (!priv)
- return;
spin_lock_bh(&priv->lock);
hvc_iucv_send(priv);
destroy_tty_buffer_list(&list_remove);
}
-/**
- * hvc_iucv_pm_freeze() - Freeze PM callback
- * @dev: IUVC HVC terminal device
- *
- * Sever an established IUCV communication path and
- * trigger a hang-up of the underlying HVC terminal.
- */
-static int hvc_iucv_pm_freeze(struct device *dev)
-{
- struct hvc_iucv_private *priv = dev_get_drvdata(dev);
-
- local_bh_disable();
- hvc_iucv_hangup(priv);
- local_bh_enable();
-
- return 0;
-}
-
-/**
- * hvc_iucv_pm_restore_thaw() - Thaw and restore PM callback
- * @dev: IUVC HVC terminal device
- *
- * Wake up the HVC thread to trigger hang-up and respective
- * HVC back-end notifier invocations.
- */
-static int hvc_iucv_pm_restore_thaw(struct device *dev)
-{
- hvc_kick();
- return 0;
-}
-
static ssize_t hvc_iucv_dev_termid_show(struct device *dev,
struct device_attribute *attr,
char *buf)
.dtr_rts = hvc_iucv_dtr_rts,
};
-/* Suspend / resume device operations */
-static const struct dev_pm_ops hvc_iucv_pm_ops = {
- .freeze = hvc_iucv_pm_freeze,
- .thaw = hvc_iucv_pm_restore_thaw,
- .restore = hvc_iucv_pm_restore_thaw,
-};
-
-/* IUCV HVC device driver */
-static struct device_driver hvc_iucv_driver = {
- .name = KMSG_COMPONENT,
- .bus = &iucv_bus,
- .pm = &hvc_iucv_pm_ops,
-};
-
/* IUCV HVC device attributes */
static DEVICE_ATTR(termid, 0640, hvc_iucv_dev_termid_show, NULL);
static DEVICE_ATTR(state, 0640, hvc_iucv_dev_state_show, NULL);
dev_set_drvdata(priv->dev, priv);
priv->dev->bus = &iucv_bus;
priv->dev->parent = iucv_root;
- priv->dev->driver = &hvc_iucv_driver;
priv->dev->groups = hvc_iucv_dev_attr_groups;
priv->dev->release = (void (*)(struct device *)) kfree;
rc = device_register(priv->dev);
goto out_error;
}
- /* register IUCV HVC device driver */
- rc = driver_register(&hvc_iucv_driver);
- if (rc)
- goto out_error;
-
/* parse hvc_iucv_allow string and create z/VM user ID filter list */
if (hvc_iucv_filter_string) {
rc = hvc_iucv_setup_filter(hvc_iucv_filter_string);
static struct tty_port_operations vcc_port_ops = { 0 };
- static ssize_t vcc_sysfs_domain_show(struct device *dev,
- struct device_attribute *attr,
- char *buf)
+ static ssize_t domain_show(struct device *dev,
+ struct device_attribute *attr,
+ char *buf)
{
struct vcc_port *port;
int rv;
return rv;
}
- static ssize_t vcc_sysfs_break_store(struct device *dev,
- struct device_attribute *attr,
- const char *buf, size_t count)
+ static ssize_t break_store(struct device *dev,
+ struct device_attribute *attr,
+ const char *buf, size_t count)
{
struct vcc_port *port;
unsigned long flags;
return rv;
}
- static DEVICE_ATTR(domain, 0400, vcc_sysfs_domain_show, NULL);
- static DEVICE_ATTR(break, 0200, NULL, vcc_sysfs_break_store);
+ static DEVICE_ATTR_ADMIN_RO(domain);
+ static DEVICE_ATTR_WO(break);
static struct attribute *vcc_sysfs_entries[] = {
&dev_attr_domain.attr,
*
* Return: status of removal
*/
-static int vcc_remove(struct vio_dev *vdev)
+static void vcc_remove(struct vio_dev *vdev)
{
struct vcc_port *port = dev_get_drvdata(&vdev->dev);
kfree(port->domain);
kfree(port);
}
-
- return 0;
}
static const struct vio_device_id vcc_match[] = {
return total_sent ? total_sent : rv;
}
- static int vcc_write_room(struct tty_struct *tty)
+ static unsigned int vcc_write_room(struct tty_struct *tty)
{
struct vcc_port *port;
- u64 num;
+ unsigned int num;
port = vcc_get_ne(tty->index);
if (unlikely(!port)) {
return num;
}
- static int vcc_chars_in_buffer(struct tty_struct *tty)
+ static unsigned int vcc_chars_in_buffer(struct tty_struct *tty)
{
struct vcc_port *port;
- u64 num;
+ unsigned int num;
port = vcc_get_ne(tty->index);
if (unlikely(!port)) {
hci_dev_put(hdev);
}
-static ssize_t show_address(struct device *tty_dev, struct device_attribute *attr, char *buf)
+static ssize_t address_show(struct device *tty_dev,
+ struct device_attribute *attr, char *buf)
{
struct rfcomm_dev *dev = dev_get_drvdata(tty_dev);
return sprintf(buf, "%pMR\n", &dev->dst);
}
-static ssize_t show_channel(struct device *tty_dev, struct device_attribute *attr, char *buf)
+static ssize_t channel_show(struct device *tty_dev,
+ struct device_attribute *attr, char *buf)
{
struct rfcomm_dev *dev = dev_get_drvdata(tty_dev);
return sprintf(buf, "%d\n", dev->channel);
}
-static DEVICE_ATTR(address, 0444, show_address, NULL);
-static DEVICE_ATTR(channel, 0444, show_channel, NULL);
+static DEVICE_ATTR_RO(address);
+static DEVICE_ATTR_RO(channel);
static struct rfcomm_dev *__rfcomm_dev_add(struct rfcomm_dev_req *req,
struct rfcomm_dlc *dlc)
return sent;
}
- static int rfcomm_tty_write_room(struct tty_struct *tty)
+ static unsigned int rfcomm_tty_write_room(struct tty_struct *tty)
{
struct rfcomm_dev *dev = (struct rfcomm_dev *) tty->driver_data;
int room = 0;
rfcomm_dlc_unthrottle(dev->dlc);
}
- static int rfcomm_tty_chars_in_buffer(struct tty_struct *tty)
+ static unsigned int rfcomm_tty_chars_in_buffer(struct tty_struct *tty)
{
struct rfcomm_dev *dev = (struct rfcomm_dev *) tty->driver_data;
projects / J-linux.git / commitdiff