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Jakub Kicinski 4f10f1dfb2 net: remove ISDN subsystem and Bluetooth CMTP 
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>
2026-04-23 10:24:02 -07:00
..
accel accel: ethosu: Add hardware dependency hint 2026-04-02 15:18:14 -05:00
accessibility
acpi arm64 updates for 7.1: 2026-04-14 16:48:56 -07:00
amba
android Rust changes for v7.1 2026-04-13 09:54:20 -07:00
ata ata: ahci: force 32-bit DMA for JMicron JMB582/JMB585 2026-04-07 09:36:46 +02:00
atm
auxdisplay auxdisplay: line-display: fix NULL dereference in linedisp_release 2026-03-27 09:54:31 +01:00
base Networking changes for 7.1. 2026-04-14 18:36:10 -07:00
bcma
block Miscellaneous x86 cleanups for v7.1: 2026-04-14 14:03:27 -07:00
bluetooth Bluetooth: hci_qca: Fix missing wakeup during SSR memdump handling 2026-04-13 09:19:42 -04:00
bus bus: fsl-mc: use generic driver_override infrastructure 2026-04-04 20:41:25 +02:00
cache
cdrom
cdx
char random: vDSO: Remove ifdeffery 2026-03-11 15:22:49 +01:00
clk Merge git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net 2026-03-26 12:09:57 -07:00
clocksource clocksource: Rewrite watchdog code completely 2026-03-20 13:36:32 +01:00
comedi comedi: dt2815: add hardware detection to prevent crash 2026-04-02 14:40:27 +02:00
connector
counter counter: rz-mtu3-cnt: do not use struct rz_mtu3_channel's dev member 2026-03-22 15:59:22 +09:00
cpufreq Power management updates for 7.1-rc1 2026-04-13 19:47:52 -07:00
cpuidle powerpc updates for 7.1 2026-04-14 17:10:15 -07:00
crypto - Change the SEV host code handling of when SNP gets enabled in order to allow 2026-04-14 15:20:54 -07:00
cxl cxl: Adjust the startup priority of cxl_pmem to be higher than that of cxl_acpi 2026-03-19 15:12:40 -07:00
dax
dca
devfreq PM / devfreq: tegra30-devfreq: add support for Tegra114 2026-04-04 03:15:39 +09:00
dibs dibs: change dibs_class to a const struct 2026-03-04 18:48:15 -08:00
dio
dma dmaengine: xilinx_dma: Fix reset related timeout with two-channel AXIDMA 2026-03-17 16:33:32 +05:30
dma-buf treewide: change inode->i_ino from unsigned long to u64 2026-03-06 14:31:28 +01:00
dpll dpll: zl3073x: add ref-sync pair support 2026-04-12 08:27:34 -07:00
edac - Add new AMD MCA bank names and types to the MCA code, preceded by a clean 2026-04-14 15:32:39 -07:00
eisa
extcon
firewire bonding: prevent potential infinite loop in bond_header_parse() 2026-03-16 19:29:45 -07:00
firmware x86/platform changes for v7.1: 2026-04-14 14:10:44 -07:00
fpga
fsi
fwctl
gnss
gpib gpib: fix use-after-free in IO ioctl handlers 2026-04-02 14:30:40 +02:00
gpio gpio updates for v7.1-rc1 2026-04-13 20:10:58 -07:00
gpu bitmap updates for v7.1 2026-04-14 08:55:18 -07:00
greybus
hid hid-for-linus-2026040801 2026-04-08 13:38:30 -07:00
hsi
hte
hv Update for the core interrupt subsystem: 2026-04-14 10:02:41 -07:00
hwmon hwmon: (asus-ec-sensors) Fix T_Sensor for PRIME X670E-PRO WIFI 2026-04-01 07:45:57 -07:00
hwspinlock
hwtracing coresight: don't use bitmap_print_to_pagebuf() 2026-04-09 13:28:05 -04:00
i2c Driver core changes for 7.1-rc1 2026-04-13 19:03:11 -07:00
i3c i3c: dw-i3c-master: Set SIR_REJECT in DAT on device attach and reattach 2026-03-11 22:50:29 +01:00
idle intel_idle: Add Panther Lake C-states table 2026-03-11 12:52:00 +01:00
iio IIO: 3rd set of fixes for the 7.0 cycle. 2026-03-29 15:27:12 +02:00
infiniband Networking changes for 7.1. 2026-04-14 18:36:10 -07:00
input Input updates for v7.0-rc7 2026-04-11 11:12:38 -07:00
interconnect interconnect: qcom: sm8450: Fix NULL pointer dereference in icc_link_nodes() 2026-03-14 12:53:13 +02:00
iommu IOMMU Fix for Linux v7.0-rc7 2026-04-09 08:36:31 -07:00
ipack
irqchip A small update for the MSI interrupt library to check for callers which 2026-04-14 10:23:19 -07:00
leds
macintosh
mailbox
mcb
md md/raid5: fix soft lockup in retry_aligned_read() 2026-04-07 15:13:52 +08:00
media media: ccs: Avoid deadlock in ccs_init_state() 2026-03-26 13:14:07 +01:00
memory
memstick
message
mfd
misc hardening updates for v7.1-rc1 2026-04-13 17:52:29 -07:00
mmc mmc: vub300: fix use-after-free on disconnect 2026-03-31 13:11:20 +02:00
most
mtd mtd: rawnand: pl353: make sure optimal timings are applied 2026-03-18 18:08:25 +01:00
mux
net caif: remove CAIF NETWORK LAYER 2026-04-23 10:23:44 -07:00
nfc gpio updates for v7.1-rc1 2026-04-13 20:10:58 -07:00
ntb Merge branch 'nocache-cleanup' 2026-04-13 08:39:51 -07:00
nubus
nvdimm vfs-7.1-rc1.integrity 2026-04-13 10:40:26 -07:00
nvme for-7.1/io_uring-20260411 2026-04-13 16:22:30 -07:00
nvmem nvmem: zynqmp_nvmem: Fix buffer size in DMA and memcpy 2026-04-02 16:44:40 +02:00
of device property: Make modifications of fwnode "flags" thread safe 2026-03-26 22:00:59 +01:00
opp
parisc
parport
pci ACPI support updates for 7.1-rc1 2026-04-13 19:25:07 -07:00
pcmcia
peci
perf arm64 updates for 7.1: 2026-04-14 16:48:56 -07:00
phy Merge git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net 2026-04-02 11:03:13 -07:00
pinctrl gpio updates for v7.1-rc1 2026-04-13 20:10:58 -07:00
platform ACPI support updates for 7.1-rc1 2026-04-13 19:25:07 -07:00
pmdomain pmdomain: imx8mp-blk-ctrl: Keep the NOC_HDCP clock enabled 2026-04-01 13:03:07 +02:00
pnp
power power sequencing updates for v7.1-rc1 2026-04-13 20:28:22 -07:00
powercap powercap: intel_rapl: Consolidate PL4 and PMU support flags into rapl_defaults 2026-04-01 16:03:05 +02:00
pps
ps3
ptp ptp: vmw: Convert to a platform driver 2026-03-17 19:06:19 -07:00
pwm pwm: th1520: remove impl Send/Sync for Th1520PwmDriverData 2026-04-03 11:57:35 +02:00
rapidio
ras
regulator gpio updates for v7.1-rc1 2026-04-13 20:10:58 -07:00
remoteproc remoteproc: imx_rproc: Fix unreachable platform prepare_ops 2026-03-05 10:18:23 -07:00
resctrl arm64 updates for 7.1: 2026-04-14 16:48:56 -07:00
reset reset: spacemit: k3: Decouple composite reset lines 2026-03-23 12:25:47 +01:00
rpmsg
rtc rtc: cmos: Do not require IRQ if ACPI alarm is used 2026-04-04 19:14:58 +02:00
s390 Driver core changes for 7.1-rc1 2026-04-13 19:03:11 -07:00
sbus
scsi Networking changes for 7.1. 2026-04-14 18:36:10 -07:00
sh
siox
slimbus driver core: platform: use generic driver_override infrastructure 2026-03-17 20:30:57 +01:00
soc Driver core changes for 7.1-rc1 2026-04-13 19:03:11 -07:00
soundwire soundwire: debugfs: initialize firmware_file to empty string 2026-04-02 16:15:23 +02:00
spi Driver core changes for 7.1-rc1 2026-04-13 19:03:11 -07:00
spmi
ssb
staging Merge git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net 2026-03-19 14:16:00 -07:00
target for-7.1/block-20260411 2026-04-13 15:51:31 -07:00
tc
tee tee: shm: Remove refcounting of kernel pages 2026-03-03 09:03:04 +01:00
thermal bitmap updates for v7.1 2026-04-14 08:55:18 -07:00
thunderbolt thunderbolt: Fix property read in nhi_wake_supported() 2026-03-09 12:36:54 +01:00
tty power sequencing updates for v7.1-rc1 2026-04-13 20:28:22 -07:00
ufs scsi: ufs: core: Fix SError in ufshcd_rtc_work() during UFS suspend 2026-03-07 11:08:39 -05:00
uio
usb usb: typec: ucsi: skip connector validation before init 2026-04-07 13:35:44 +02:00
vdpa vdpa: use generic driver_override infrastructure 2026-04-04 00:47:50 +02:00
vfio powerpc updates for 7.1 2026-04-14 17:10:15 -07:00
vhost vsock: add G2H fallback for CIDs not owned by H2G transport 2026-03-12 10:59:36 +01:00
video fbdev: au1100fb: Fix build on MIPS64 2026-03-05 17:35:12 +01:00
virt - Print TDX module version during boot 2026-04-14 14:42:55 -07:00
virtio dma-mapping: Clarify valid conditions for CPU cache line overlap 2026-03-20 11:33:24 +01:00
w1
watchdog watchdog: ni903x_wdt: Convert to a platform driver 2026-04-07 21:06:59 +02:00
xen ACPI support updates for 7.1-rc1 2026-04-13 19:25:07 -07:00
zorro
Kconfig net: remove ISDN subsystem and Bluetooth CMTP 2026-04-23 10:24:02 -07:00
Makefile net: remove ISDN subsystem and Bluetooth CMTP 2026-04-23 10:24:02 -07:00