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4f10f1dfb2
Remove the ISDN (mISDN, CAPI) subsystem and Bluetooth CMTP protocol from the kernel tree. ISDN is a pretty old technology and it's unclear whether anyone still uses it. I went over the last few years of git history and all the commits are either tree-wide conversions or syzbot/static analyzer fixes. When we discussed removal in the past IIRC there were some concerns about ISDN still being used in parts of Germany. Unfortunately, the code base is quite old, none of the current maintainers are familiar with it and AI tools will have a field day finding bugs here. Delete this code and preserve it in an out-of-tree repository for any remaining users: https://github.com/linux-netdev/mod-orphan UAPI constants AF_ISDN/PF_ISDN and the SELinux isdn_socket class are preserved for ABI stability, but the rest of uAPI is removed. Signed-off-by: Jakub Kicinski <kuba@kernel.org> Acked-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org> Acked-by: Stephen Hemminger <stephen@networkplumber.org> Acked-by: Luiz Augusto von Dentz <luiz.von.dentz@intel.com> Reviewed-by: Simon Horman <horms@kernel.org> Link: https://patch.msgid.link/20260421022108.1299678-1-kuba@kernel.org Signed-off-by: Paolo Abeni <pabeni@redhat.com>
93 lines
1.5 KiB
ReStructuredText
93 lines
1.5 KiB
ReStructuredText
.. SPDX-License-Identifier: GPL-2.0
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==============================
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Kernel subsystem documentation
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==============================
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These books get into the details of how specific kernel subsystems work
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from the point of view of a kernel developer. Much of the information here
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is taken directly from the kernel source, with supplemental material added
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as needed (or at least as we managed to add it — probably *not* all that is
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needed).
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Core subsystems
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---------------
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.. toctree::
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:maxdepth: 1
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core-api/index
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driver-api/index
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mm/index
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power/index
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scheduler/index
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timers/index
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locking/index
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Human interfaces
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----------------
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.. toctree::
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:maxdepth: 1
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input/index
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hid/index
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sound/index
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gpu/index
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fb/index
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leds/index
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Networking interfaces
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---------------------
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.. toctree::
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:maxdepth: 1
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networking/index
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netlabel/index
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infiniband/index
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mhi/index
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Storage interfaces
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------------------
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.. toctree::
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:maxdepth: 1
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filesystems/index
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block/index
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cdrom/index
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scsi/index
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target/index
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nvme/index
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Other subsystems
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----------------
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**Fixme**: much more organizational work is needed here.
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.. toctree::
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:maxdepth: 1
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accounting/index
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cpu-freq/index
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edac/index
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fpga/index
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i2c/index
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iio/index
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pcmcia/index
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spi/index
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w1/index
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watchdog/index
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virt/index
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hwmon/index
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accel/index
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security/index
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crypto/index
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bpf/index
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usb/index
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PCI/index
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misc-devices/index
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peci/index
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wmi/index
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tee/index
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