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Merge branch 'for-mingo' of git://git.kernel.org/pub/scm/linux/kernel/git/paulmck/linux-rcu into core/rcu
Pull RCU updates from Paul McKenney: 1. Miscellaneous fixes. 2. kfree_rcu() updates. 3. Remove scheduler locking restriction 4. RCU-tasks update, including addition of RCU Tasks Trace for BPF use and RCU Tasks Rude. (This branch is on top of #3 due to overlap of changed code.) 5. RCU CPU stall warning updates. 6. Torture-test updates.
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‎.gitignore

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# SPDX-License-Identifier: GPL-2.0-only
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#
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# NOTE! Don't add files that are generated in specific
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# subdirectories here. Add them in the ".gitignore" file

‎.mailmap

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@@ -210,6 +210,7 @@ Oleksij Rempel <[email protected]> <[email protected]>
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Oleksij Rempel <[email protected]> <[email protected]>
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Oleksij Rempel <[email protected]> <[email protected]>
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Oleksij Rempel <[email protected]> <[email protected]>
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Pali Rohár <[email protected]> <[email protected]>
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Paolo 'Blaisorblade' Giarrusso <[email protected]>
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Patrick Mochel <[email protected]>
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Paul Burton <[email protected]> <[email protected]>
@@ -225,6 +226,7 @@ Pratyush Anand <[email protected]> <[email protected]>
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Praveen BP <[email protected]>
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Punit Agrawal <[email protected]> <[email protected]>
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Qais Yousef <[email protected]> <[email protected]>
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Quentin Monnet <[email protected]> <[email protected]>
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Quentin Perret <[email protected]> <[email protected]>
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Rafael J. Wysocki <[email protected]> <[email protected]>
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Rajesh Shah <[email protected]>
@@ -243,9 +245,11 @@ Santosh Shilimkar <[email protected]>
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Santosh Shilimkar <[email protected]>
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Sascha Hauer <[email protected]>
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S.Çağlar Onur <[email protected]>
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Sakari Ailus <[email protected]> <[email protected]>
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Sean Nyekjaer <[email protected]> <[email protected]>
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Sebastian Reichel <[email protected]> <[email protected]>
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Sebastian Reichel <[email protected]> <[email protected]>
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Sedat Dilek <[email protected]> <[email protected]>
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Shiraz Hashim <[email protected]> <[email protected]>
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Shuah Khan <[email protected]> <[email protected]>
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Shuah Khan <[email protected]> <[email protected]>

‎Documentation/.gitignore

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# SPDX-License-Identifier: GPL-2.0-only
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output
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*.pyc

‎Documentation/ABI/obsolete/sysfs-kernel-fadump_enabled

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This ABI is renamed and moved to a new location /sys/kernel/fadump/enabled.
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What: /sys/kernel/fadump_enabled
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Date: Feb 2012
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Contact: [email protected]
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Description: read only
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Primarily used to identify whether the FADump is enabled in
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the kernel or not.
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User: Kdump service

‎Documentation/ABI/obsolete/sysfs-kernel-fadump_registered

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This ABI is renamed and moved to a new location /sys/kernel/fadump/registered.¬
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What: /sys/kernel/fadump_registered
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Date: Feb 2012
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Contact: [email protected]
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Description: read/write
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Helps to control the dump collect feature from userspace.
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Setting 1 to this file enables the system to collect the
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dump and 0 to disable it.
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User: Kdump service

‎Documentation/ABI/obsolete/sysfs-kernel-fadump_release_mem

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This ABI is renamed and moved to a new location /sys/kernel/fadump/release_mem.¬
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What: /sys/kernel/fadump_release_mem
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Date: Feb 2012
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Contact: [email protected]
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Description: write only
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This is a special sysfs file and only available when
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the system is booted to capture the vmcore using FADump.
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It is used to release the memory reserved by FADump to
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save the crash dump.

‎Documentation/ABI/obsolete/sysfs-selinux-checkreqprot

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What: /sys/fs/selinux/checkreqprot
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Date: April 2005 (predates git)
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KernelVersion: 2.6.12-rc2 (predates git)
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Contact: [email protected]
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Description:
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The selinuxfs "checkreqprot" node allows SELinux to be configured
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to check the protection requested by userspace for mmap/mprotect
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calls instead of the actual protection applied by the kernel.
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This was a compatibility mechanism for legacy userspace and
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for the READ_IMPLIES_EXEC personality flag. However, if set to
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1, it weakens security by allowing mappings to be made executable
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without authorization by policy. The default value of checkreqprot
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at boot was changed starting in Linux v4.4 to 0 (i.e. check the
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actual protection), and Android and Linux distributions have been
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explicitly writing a "0" to /sys/fs/selinux/checkreqprot during
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initialization for some time. Support for setting checkreqprot to 1
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will be removed in a future kernel release, at which point the kernel
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will always cease using checkreqprot internally and will always
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check the actual protections being applied upon mmap/mprotect calls.
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The checkreqprot selinuxfs node will remain for backward compatibility
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but will discard writes of the "0" value and will reject writes of the
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"1" value when this mechanism is removed.

‎Documentation/ABI/removed/sysfs-kernel-fadump_release_opalcore

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This ABI is moved to /sys/firmware/opal/mpipl/release_core.
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What: /sys/kernel/fadump_release_opalcore
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Date: Sep 2019
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Contact: [email protected]
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Description: write only
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The sysfs file is available when the system is booted to
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collect the dump on OPAL based machine. It used to release
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the memory used to collect the opalcore.

‎Documentation/ABI/testing/sysfs-kernel-uids renamed to ‎Documentation/ABI/removed/sysfs-kernel-uids

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What: /sys/kernel/uids/<uid>/cpu_shares
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Date: December 2007
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Date: December 2007, finally removed in kernel v2.6.34-rc1
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Contact: Dhaval Giani <[email protected]>
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Srivatsa Vaddagiri <[email protected]>
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Description:

‎Documentation/ABI/testing/configfs-most

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What: /sys/kernel/config/most_<component>
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Date: March 8, 2019
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KernelVersion: 5.2
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Description: Interface is used to configure and connect device channels
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to component drivers.
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Attributes are visible only when configfs is mounted. To mount
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configfs in /sys/kernel/config directory use:
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# mount -t configfs none /sys/kernel/config/
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What: /sys/kernel/config/most_cdev/<link>
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Date: March 8, 2019
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KernelVersion: 5.2
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Description:
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The attributes:
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buffer_size configure the buffer size for this channel
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subbuffer_size configure the sub-buffer size for this channel
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(needed for synchronous and isochrnous data)
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num_buffers configure number of buffers used for this
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channel
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datatype configure type of data that will travel over
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this channel
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direction configure whether this link will be an input
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or output
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dbr_size configure DBR data buffer size (this is used
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for MediaLB communication only)
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packets_per_xact
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configure the number of packets that will be
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collected from the network before being
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transmitted via USB (this is used for USB
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communication only)
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device name of the device the link is to be attached to
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channel name of the channel the link is to be attached to
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comp_params pass parameters needed by some components
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create_link write '1' to this attribute to trigger the
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creation of the link. In case of speculative
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configuration, the creation is post-poned until
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a physical device is being attached to the bus.
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destroy_link write '1' to this attribute to destroy an
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active link
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What: /sys/kernel/config/most_video/<link>
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Date: March 8, 2019
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KernelVersion: 5.2
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Description:
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The attributes:
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buffer_size configure the buffer size for this channel
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subbuffer_size configure the sub-buffer size for this channel
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(needed for synchronous and isochrnous data)
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num_buffers configure number of buffers used for this
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channel
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datatype configure type of data that will travel over
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this channel
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direction configure whether this link will be an input
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or output
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dbr_size configure DBR data buffer size (this is used
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for MediaLB communication only)
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packets_per_xact
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configure the number of packets that will be
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collected from the network before being
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transmitted via USB (this is used for USB
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communication only)
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device name of the device the link is to be attached to
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channel name of the channel the link is to be attached to
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comp_params pass parameters needed by some components
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create_link write '1' to this attribute to trigger the
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creation of the link. In case of speculative
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configuration, the creation is post-poned until
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a physical device is being attached to the bus.
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destroy_link write '1' to this attribute to destroy an
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active link
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What: /sys/kernel/config/most_net/<link>
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Date: March 8, 2019
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KernelVersion: 5.2
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Description:
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The attributes:
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buffer_size configure the buffer size for this channel
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subbuffer_size configure the sub-buffer size for this channel
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(needed for synchronous and isochrnous data)
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num_buffers configure number of buffers used for this
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channel
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datatype configure type of data that will travel over
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this channel
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direction configure whether this link will be an input
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or output
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dbr_size configure DBR data buffer size (this is used
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for MediaLB communication only)
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packets_per_xact
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configure the number of packets that will be
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collected from the network before being
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transmitted via USB (this is used for USB
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communication only)
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device name of the device the link is to be attached to
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channel name of the channel the link is to be attached to
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comp_params pass parameters needed by some components
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create_link write '1' to this attribute to trigger the
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creation of the link. In case of speculative
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configuration, the creation is post-poned until
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a physical device is being attached to the bus.
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destroy_link write '1' to this attribute to destroy an
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active link
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What: /sys/kernel/config/most_sound/<card>
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Date: March 8, 2019
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KernelVersion: 5.2
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Description:
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The attributes:
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create_card write '1' to this attribute to trigger the
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registration of the sound card with the ALSA
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subsystem.
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What: /sys/kernel/config/most_sound/<card>/<link>
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Date: March 8, 2019
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KernelVersion: 5.2
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Description:
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The attributes:
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buffer_size configure the buffer size for this channel
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subbuffer_size configure the sub-buffer size for this channel
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(needed for synchronous and isochrnous data)
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num_buffers configure number of buffers used for this
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channel
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datatype configure type of data that will travel over
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this channel
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direction configure whether this link will be an input
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or output
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dbr_size configure DBR data buffer size (this is used
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for MediaLB communication only)
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packets_per_xact
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configure the number of packets that will be
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collected from the network before being
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transmitted via USB (this is used for USB
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communication only)
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device name of the device the link is to be attached to
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channel name of the channel the link is to be attached to
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comp_params pass parameters needed by some components
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create_link write '1' to this attribute to trigger the
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creation of the link. In case of speculative
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configuration, the creation is post-poned until
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a physical device is being attached to the bus.
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destroy_link write '1' to this attribute to destroy an
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active link

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