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-rw-r--r--Documentation/ABI/removed/devfs1
-rw-r--r--Documentation/ABI/removed/o2cb4
-rw-r--r--Documentation/ABI/removed/raw13941
-rw-r--r--Documentation/ABI/removed/sysfs-bus-nfit2
-rw-r--r--Documentation/ABI/removed/sysfs-class-cxl272
-rw-r--r--Documentation/ABI/removed/sysfs-class-rfkill4
-rw-r--r--Documentation/ABI/removed/sysfs-firmware-efi-vars12
-rw-r--r--Documentation/ABI/removed/sysfs-kernel-uids2
-rw-r--r--Documentation/ABI/removed/sysfs-mce37
-rw-r--r--Documentation/ABI/removed/sysfs-selinux-checkreqprot26
-rw-r--r--Documentation/ABI/removed/sysfs-selinux-disable29
-rw-r--r--Documentation/ABI/removed/video13941
12 files changed, 385 insertions, 6 deletions
diff --git a/Documentation/ABI/removed/devfs b/Documentation/ABI/removed/devfs
index 0020c49933c4..24fb35adf277 100644
--- a/Documentation/ABI/removed/devfs
+++ b/Documentation/ABI/removed/devfs
@@ -5,6 +5,7 @@ Description:
devfs has been unmaintained for a number of years, has unfixable
races, contains a naming policy within the kernel that is
against the LSB, and can be replaced by using udev.
+
The files fs/devfs/*, include/linux/devfs_fs*.h were removed,
along with the assorted devfs function calls throughout the
kernel tree.
diff --git a/Documentation/ABI/removed/o2cb b/Documentation/ABI/removed/o2cb
index 20c91adca6d4..61cff238fbe8 100644
--- a/Documentation/ABI/removed/o2cb
+++ b/Documentation/ABI/removed/o2cb
@@ -1,10 +1,10 @@
What: /sys/o2cb symlink
Date: May 2011
KernelVersion: 3.0
-Contact: ocfs2-devel@oss.oracle.com
+Contact: ocfs2-devel@lists.linux.dev
Description: This is a symlink: /sys/o2cb to /sys/fs/o2cb. The symlink is
removed when new versions of ocfs2-tools which know to look
in /sys/fs/o2cb are sufficiently prevalent. Don't code new
software to look here, it should try /sys/fs/o2cb instead.
Users: ocfs2-tools. It's sufficient to mail proposed changes to
- ocfs2-devel@oss.oracle.com.
+ ocfs2-devel@lists.linux.dev.
diff --git a/Documentation/ABI/removed/raw1394 b/Documentation/ABI/removed/raw1394
index ec333e676322..9ec7ec493920 100644
--- a/Documentation/ABI/removed/raw1394
+++ b/Documentation/ABI/removed/raw1394
@@ -7,6 +7,7 @@ Description:
to implement sensible device security policies, and its low level
of abstraction that required userspace clients to duplicate much
of the kernel's ieee1394 core functionality.
+
Replaced by /dev/fw*, i.e. the <linux/firewire-cdev.h> ABI of
firewire-core.
diff --git a/Documentation/ABI/removed/sysfs-bus-nfit b/Documentation/ABI/removed/sysfs-bus-nfit
index ae8c1ca53828..277437005def 100644
--- a/Documentation/ABI/removed/sysfs-bus-nfit
+++ b/Documentation/ABI/removed/sysfs-bus-nfit
@@ -1,7 +1,7 @@
What: /sys/bus/nd/devices/regionX/nfit/ecc_unit_size
Date: Aug, 2017
KernelVersion: v4.14 (Removed v4.18)
-Contact: linux-nvdimm@lists.01.org
+Contact: nvdimm@lists.linux.dev
Description:
(RO) Size of a write request to a DIMM that will not incur a
read-modify-write cycle at the memory controller.
diff --git a/Documentation/ABI/removed/sysfs-class-cxl b/Documentation/ABI/removed/sysfs-class-cxl
new file mode 100644
index 000000000000..266c413b96e8
--- /dev/null
+++ b/Documentation/ABI/removed/sysfs-class-cxl
@@ -0,0 +1,272 @@
+The cxl driver was removed in 6.15.
+
+Please note that attributes that are shared between devices are stored in
+the directory pointed to by the symlink device/.
+For example, the real path of the attribute /sys/class/cxl/afu0.0s/irqs_max is
+/sys/class/cxl/afu0.0s/device/irqs_max, i.e. /sys/class/cxl/afu0.0/irqs_max.
+
+
+Slave contexts (eg. /sys/class/cxl/afu0.0s):
+
+What: /sys/class/cxl/<afu>/afu_err_buf
+Date: September 2014, removed February 2025
+Contact: linuxppc-dev@lists.ozlabs.org
+Description: read only
+ AFU Error Buffer contents. The contents of this file are
+ application specific and depends on the AFU being used.
+ Applications interacting with the AFU can use this attribute
+ to know about the current error condition and take appropriate
+ action like logging the event etc.
+
+
+What: /sys/class/cxl/<afu>/irqs_max
+Date: September 2014, removed February 2025
+Contact: linuxppc-dev@lists.ozlabs.org
+Description: read/write
+ Decimal value of maximum number of interrupts that can be
+ requested by userspace. The default on probe is the maximum
+ that hardware can support (eg. 2037). Write values will limit
+ userspace applications to that many userspace interrupts. Must
+ be >= irqs_min.
+Users: https://github.com/ibm-capi/libcxl
+
+What: /sys/class/cxl/<afu>/irqs_min
+Date: September 2014, removed February 2025
+Contact: linuxppc-dev@lists.ozlabs.org
+Description: read only
+ Decimal value of the minimum number of interrupts that
+ userspace must request on a CXL_START_WORK ioctl. Userspace may
+ omit the num_interrupts field in the START_WORK IOCTL to get
+ this minimum automatically.
+Users: https://github.com/ibm-capi/libcxl
+
+What: /sys/class/cxl/<afu>/mmio_size
+Date: September 2014, removed February 2025
+Contact: linuxppc-dev@lists.ozlabs.org
+Description: read only
+ Decimal value of the size of the MMIO space that may be mmapped
+ by userspace.
+Users: https://github.com/ibm-capi/libcxl
+
+What: /sys/class/cxl/<afu>/modes_supported
+Date: September 2014, removed February 2025
+Contact: linuxppc-dev@lists.ozlabs.org
+Description: read only
+ List of the modes this AFU supports. One per line.
+ Valid entries are: "dedicated_process" and "afu_directed"
+Users: https://github.com/ibm-capi/libcxl
+
+What: /sys/class/cxl/<afu>/mode
+Date: September 2014, removed February 2025
+Contact: linuxppc-dev@lists.ozlabs.org
+Description: read/write
+ The current mode the AFU is using. Will be one of the modes
+ given in modes_supported. Writing will change the mode
+ provided that no user contexts are attached.
+Users: https://github.com/ibm-capi/libcxl
+
+
+What: /sys/class/cxl/<afu>/prefault_mode
+Date: September 2014, removed February 2025
+Contact: linuxppc-dev@lists.ozlabs.org
+Description: read/write
+ Set the mode for prefaulting in segments into the segment table
+ when performing the START_WORK ioctl. Only applicable when
+ running under hashed page table mmu.
+ Possible values:
+
+ ======================= ======================================
+ none No prefaulting (default)
+ work_element_descriptor Treat the work element
+ descriptor as an effective address and
+ prefault what it points to.
+ all all segments process calling
+ START_WORK maps.
+ ======================= ======================================
+
+Users: https://github.com/ibm-capi/libcxl
+
+What: /sys/class/cxl/<afu>/reset
+Date: September 2014, removed February 2025
+Contact: linuxppc-dev@lists.ozlabs.org
+Description: write only
+ Writing 1 here will reset the AFU provided there are not
+ contexts active on the AFU.
+Users: https://github.com/ibm-capi/libcxl
+
+What: /sys/class/cxl/<afu>/api_version
+Date: September 2014, removed February 2025
+Contact: linuxppc-dev@lists.ozlabs.org
+Description: read only
+ Decimal value of the current version of the kernel/user API.
+Users: https://github.com/ibm-capi/libcxl
+
+What: /sys/class/cxl/<afu>/api_version_compatible
+Date: September 2014, removed February 2025
+Contact: linuxppc-dev@lists.ozlabs.org
+Description: read only
+ Decimal value of the lowest version of the userspace API
+ this kernel supports.
+Users: https://github.com/ibm-capi/libcxl
+
+
+AFU configuration records (eg. /sys/class/cxl/afu0.0/cr0):
+
+An AFU may optionally export one or more PCIe like configuration records, known
+as AFU configuration records, which will show up here (if present).
+
+What: /sys/class/cxl/<afu>/cr<config num>/vendor
+Date: February 2015, removed February 2025
+Contact: linuxppc-dev@lists.ozlabs.org
+Description: read only
+ Hexadecimal value of the vendor ID found in this AFU
+ configuration record.
+Users: https://github.com/ibm-capi/libcxl
+
+What: /sys/class/cxl/<afu>/cr<config num>/device
+Date: February 2015, removed February 2025
+Contact: linuxppc-dev@lists.ozlabs.org
+Description: read only
+ Hexadecimal value of the device ID found in this AFU
+ configuration record.
+Users: https://github.com/ibm-capi/libcxl
+
+What: /sys/class/cxl/<afu>/cr<config num>/class
+Date: February 2015, removed February 2025
+Contact: linuxppc-dev@lists.ozlabs.org
+Description: read only
+ Hexadecimal value of the class code found in this AFU
+ configuration record.
+Users: https://github.com/ibm-capi/libcxl
+
+What: /sys/class/cxl/<afu>/cr<config num>/config
+Date: February 2015, removed February 2025
+Contact: linuxppc-dev@lists.ozlabs.org
+Description: read only
+ This binary file provides raw access to the AFU configuration
+ record. The format is expected to match the either the standard
+ or extended configuration space defined by the PCIe
+ specification.
+Users: https://github.com/ibm-capi/libcxl
+
+
+
+Master contexts (eg. /sys/class/cxl/afu0.0m)
+
+What: /sys/class/cxl/<afu>m/mmio_size
+Date: September 2014, removed February 2025
+Contact: linuxppc-dev@lists.ozlabs.org
+Description: read only
+ Decimal value of the size of the MMIO space that may be mmapped
+ by userspace. This includes all slave contexts space also.
+Users: https://github.com/ibm-capi/libcxl
+
+What: /sys/class/cxl/<afu>m/pp_mmio_len
+Date: September 2014, removed February 2025
+Contact: linuxppc-dev@lists.ozlabs.org
+Description: read only
+ Decimal value of the Per Process MMIO space length.
+Users: https://github.com/ibm-capi/libcxl
+
+What: /sys/class/cxl/<afu>m/pp_mmio_off
+Date: September 2014, removed February 2025
+Contact: linuxppc-dev@lists.ozlabs.org
+Description: read only
+ (not in a guest)
+ Decimal value of the Per Process MMIO space offset.
+Users: https://github.com/ibm-capi/libcxl
+
+
+Card info (eg. /sys/class/cxl/card0)
+
+What: /sys/class/cxl/<card>/caia_version
+Date: September 2014, removed February 2025
+Contact: linuxppc-dev@lists.ozlabs.org
+Description: read only
+ Identifies the CAIA Version the card implements.
+Users: https://github.com/ibm-capi/libcxl
+
+What: /sys/class/cxl/<card>/psl_revision
+Date: September 2014, removed February 2025
+Contact: linuxppc-dev@lists.ozlabs.org
+Description: read only
+ Identifies the revision level of the PSL.
+Users: https://github.com/ibm-capi/libcxl
+
+What: /sys/class/cxl/<card>/base_image
+Date: September 2014, removed February 2025
+Contact: linuxppc-dev@lists.ozlabs.org
+Description: read only
+ (not in a guest)
+ Identifies the revision level of the base image for devices
+ that support loadable PSLs. For FPGAs this field identifies
+ the image contained in the on-adapter flash which is loaded
+ during the initial program load.
+Users: https://github.com/ibm-capi/libcxl
+
+What: /sys/class/cxl/<card>/image_loaded
+Date: September 2014, removed February 2025
+Contact: linuxppc-dev@lists.ozlabs.org
+Description: read only
+ (not in a guest)
+ Will return "user" or "factory" depending on the image loaded
+ onto the card.
+Users: https://github.com/ibm-capi/libcxl
+
+What: /sys/class/cxl/<card>/load_image_on_perst
+Date: December 2014, removed February 2025
+Contact: linuxppc-dev@lists.ozlabs.org
+Description: read/write
+ (not in a guest)
+ Valid entries are "none", "user", and "factory".
+ "none" means PERST will not cause image to be loaded to the
+ card. A power cycle is required to load the image.
+ "none" could be useful for debugging because the trace arrays
+ are preserved.
+
+ "user" and "factory" means PERST will cause either the user or
+ user or factory image to be loaded.
+ Default is to reload on PERST whichever image the card has
+ loaded.
+Users: https://github.com/ibm-capi/libcxl
+
+What: /sys/class/cxl/<card>/reset
+Date: October 2014, removed February 2025
+Contact: linuxppc-dev@lists.ozlabs.org
+Description: write only
+ Writing 1 will issue a PERST to card provided there are no
+ contexts active on any one of the card AFUs. This may cause
+ the card to reload the FPGA depending on load_image_on_perst.
+ Writing -1 will do a force PERST irrespective of any active
+ contexts on the card AFUs.
+Users: https://github.com/ibm-capi/libcxl
+
+What: /sys/class/cxl/<card>/perst_reloads_same_image
+Date: July 2015, removed February 2025
+Contact: linuxppc-dev@lists.ozlabs.org
+Description: read/write
+ (not in a guest)
+ Trust that when an image is reloaded via PERST, it will not
+ have changed.
+
+ == =================================================
+ 0 don't trust, the image may be different (default)
+ 1 trust that the image will not change.
+ == =================================================
+Users: https://github.com/ibm-capi/libcxl
+
+What: /sys/class/cxl/<card>/psl_timebase_synced
+Date: March 2016, removed February 2025
+Contact: linuxppc-dev@lists.ozlabs.org
+Description: read only
+ Returns 1 if the psl timebase register is synchronized
+ with the core timebase register, 0 otherwise.
+Users: https://github.com/ibm-capi/libcxl
+
+What: /sys/class/cxl/<card>/tunneled_ops_supported
+Date: May 2018, removed February 2025
+Contact: linuxppc-dev@lists.ozlabs.org
+Description: read only
+ Returns 1 if tunneled operations are supported in capi mode,
+ 0 otherwise.
+Users: https://github.com/ibm-capi/libcxl
diff --git a/Documentation/ABI/removed/sysfs-class-rfkill b/Documentation/ABI/removed/sysfs-class-rfkill
index 9c08c7f98ffb..20cb688af173 100644
--- a/Documentation/ABI/removed/sysfs-class-rfkill
+++ b/Documentation/ABI/removed/sysfs-class-rfkill
@@ -4,10 +4,10 @@ For details to this subsystem look at Documentation/driver-api/rfkill.rst.
What: /sys/class/rfkill/rfkill[0-9]+/claim
Date: 09-Jul-2007
-KernelVersion v2.6.22
+KernelVersion: v2.6.22
Contact: linux-wireless@vger.kernel.org
Description: This file was deprecated because there no longer was a way to
claim just control over a single rfkill instance.
This file was scheduled to be removed in 2012, and was removed
in 2016.
-Values: 0: Kernel handles events
+Values: 0: Kernel handles events
diff --git a/Documentation/ABI/removed/sysfs-firmware-efi-vars b/Documentation/ABI/removed/sysfs-firmware-efi-vars
new file mode 100644
index 000000000000..8d97368b149b
--- /dev/null
+++ b/Documentation/ABI/removed/sysfs-firmware-efi-vars
@@ -0,0 +1,12 @@
+What: /sys/firmware/efi/vars
+Date: April 2004, removed March 2023
+Description:
+ This directory exposed interfaces for interacting with
+ EFI variables. For more information on EFI variables,
+ see 'Variable Services' in the UEFI specification
+ (section 7.2 in specification version 2.3 Errata D).
+
+ The 'efivars' sysfs interface was removed in March of 2023,
+ after being considered deprecated no later than September
+ of 2020. Its functionality has been replaced by the
+ 'efivarfs' filesystem.
diff --git a/Documentation/ABI/removed/sysfs-kernel-uids b/Documentation/ABI/removed/sysfs-kernel-uids
index dc4463f190a7..85a90b86ce1e 100644
--- a/Documentation/ABI/removed/sysfs-kernel-uids
+++ b/Documentation/ABI/removed/sysfs-kernel-uids
@@ -5,7 +5,7 @@ Contact: Dhaval Giani <dhaval@linux.vnet.ibm.com>
Description:
The /sys/kernel/uids/<uid>/cpu_shares tunable is used
to set the cpu bandwidth a user is allowed. This is a
- propotional value. What that means is that if there
+ proportional value. What that means is that if there
are two users logged in, each with an equal number of
shares, then they will get equal CPU bandwidth. Another
example would be, if User A has shares = 1024 and user
diff --git a/Documentation/ABI/removed/sysfs-mce b/Documentation/ABI/removed/sysfs-mce
new file mode 100644
index 000000000000..ef5dd2a80918
--- /dev/null
+++ b/Documentation/ABI/removed/sysfs-mce
@@ -0,0 +1,37 @@
+What: /sys/devices/system/machinecheck/machinecheckX/tolerant
+Contact: Borislav Petkov <bp@suse.de>
+Date: Dec, 2021
+Description:
+ Unused and obsolete after the advent of recoverable machine
+ checks (see last sentence below) and those are present since
+ 2010 (Nehalem).
+
+ Original description:
+
+ The entries appear for each CPU, but they are truly shared
+ between all CPUs.
+
+ Tolerance level. When a machine check exception occurs for a
+ non corrected machine check the kernel can take different
+ actions.
+
+ Since machine check exceptions can happen any time it is
+ sometimes risky for the kernel to kill a process because it
+ defies normal kernel locking rules. The tolerance level
+ configures how hard the kernel tries to recover even at some
+ risk of deadlock. Higher tolerant values trade potentially
+ better uptime with the risk of a crash or even corruption
+ (for tolerant >= 3).
+
+ == ===========================================================
+ 0 always panic on uncorrected errors, log corrected errors
+ 1 panic or SIGBUS on uncorrected errors, log corrected errors
+ 2 SIGBUS or log uncorrected errors, log corrected errors
+ 3 never panic or SIGBUS, log all errors (for testing only)
+ == ===========================================================
+
+ Default: 1
+
+ Note this only makes a difference if the CPU allows recovery
+ from a machine check exception. Current x86 CPUs generally
+ do not.
diff --git a/Documentation/ABI/removed/sysfs-selinux-checkreqprot b/Documentation/ABI/removed/sysfs-selinux-checkreqprot
new file mode 100644
index 000000000000..f599a0a87e8b
--- /dev/null
+++ b/Documentation/ABI/removed/sysfs-selinux-checkreqprot
@@ -0,0 +1,26 @@
+What: /sys/fs/selinux/checkreqprot
+Date: April 2005 (predates git)
+KernelVersion: 2.6.12-rc2 (predates git)
+Contact: selinux@vger.kernel.org
+Description:
+
+ REMOVAL UPDATE: The SELinux checkreqprot functionality was removed in
+ March 2023, the original deprecation notice is shown below.
+
+ The selinuxfs "checkreqprot" node allows SELinux to be configured
+ to check the protection requested by userspace for mmap/mprotect
+ calls instead of the actual protection applied by the kernel.
+ This was a compatibility mechanism for legacy userspace and
+ for the READ_IMPLIES_EXEC personality flag. However, if set to
+ 1, it weakens security by allowing mappings to be made executable
+ without authorization by policy. The default value of checkreqprot
+ at boot was changed starting in Linux v4.4 to 0 (i.e. check the
+ actual protection), and Android and Linux distributions have been
+ explicitly writing a "0" to /sys/fs/selinux/checkreqprot during
+ initialization for some time. Support for setting checkreqprot to 1
+ will be removed no sooner than June 2021, at which point the kernel
+ will always cease using checkreqprot internally and will always
+ check the actual protections being applied upon mmap/mprotect calls.
+ The checkreqprot selinuxfs node will remain for backward compatibility
+ but will discard writes of the "0" value and will reject writes of the
+ "1" value when this mechanism is removed.
diff --git a/Documentation/ABI/removed/sysfs-selinux-disable b/Documentation/ABI/removed/sysfs-selinux-disable
new file mode 100644
index 000000000000..cb783c64cab3
--- /dev/null
+++ b/Documentation/ABI/removed/sysfs-selinux-disable
@@ -0,0 +1,29 @@
+What: /sys/fs/selinux/disable
+Date: April 2005 (predates git)
+KernelVersion: 2.6.12-rc2 (predates git)
+Contact: selinux@vger.kernel.org
+Description:
+
+ REMOVAL UPDATE: The SELinux runtime disable functionality was removed
+ in March 2023, the original deprecation notice is shown below.
+
+ The selinuxfs "disable" node allows SELinux to be disabled at runtime
+ prior to a policy being loaded into the kernel. If disabled via this
+ mechanism, SELinux will remain disabled until the system is rebooted.
+
+ The preferred method of disabling SELinux is via the "selinux=0" boot
+ parameter, but the selinuxfs "disable" node was created to make it
+ easier for systems with primitive bootloaders that did not allow for
+ easy modification of the kernel command line. Unfortunately, allowing
+ for SELinux to be disabled at runtime makes it difficult to secure the
+ kernel's LSM hooks using the "__ro_after_init" feature.
+
+ Thankfully, the need for the SELinux runtime disable appears to be
+ gone, the default Kconfig configuration disables this selinuxfs node,
+ and only one of the major distributions, Fedora, supports disabling
+ SELinux at runtime. Fedora is in the process of removing the
+ selinuxfs "disable" node and once that is complete we will start the
+ slow process of removing this code from the kernel.
+
+ More information on /sys/fs/selinux/disable can be found under the
+ CONFIG_SECURITY_SELINUX_DISABLE Kconfig option.
diff --git a/Documentation/ABI/removed/video1394 b/Documentation/ABI/removed/video1394
index c39c25aee77b..1905d35a6619 100644
--- a/Documentation/ABI/removed/video1394
+++ b/Documentation/ABI/removed/video1394
@@ -8,6 +8,7 @@ Description:
performance issues in its first generation. Any video1394 user had
to use raw1394 + libraw1394 too because video1394 did not provide
asynchronous I/O for device discovery and configuration.
+
Replaced by /dev/fw*, i.e. the <linux/firewire-cdev.h> ABI of
firewire-core.
Copyright © 1996 – 2023 Jason A. Donenfeld. All Rights Reverse Engineered.