diff options
| author | Jakub Kicinski <kuba@kernel.org> | 2026-04-20 19:21:07 -0700 |
|---|---|---|
| committer | Jakub Kicinski <kuba@kernel.org> | 2026-04-23 10:24:02 -0700 |
| commit | 4f10f1dfb235a28bd86cf0b00d86a59696ddbe5b (patch) | |
| tree | dfa0147f9ffad54675b0f71912b8c0fc202acd8e /include/uapi/linux/kernelcapi.h | |
| parent | 6d5431555de032f5ad9e08a7fb372f37bf493903 (diff) | |
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>
Diffstat (limited to 'include/uapi/linux/kernelcapi.h')
| -rw-r--r-- | include/uapi/linux/kernelcapi.h | 48 |
1 files changed, 0 insertions, 48 deletions
diff --git a/include/uapi/linux/kernelcapi.h b/include/uapi/linux/kernelcapi.h deleted file mode 100644 index 325a856e0e20..000000000000 --- a/include/uapi/linux/kernelcapi.h +++ /dev/null @@ -1,48 +0,0 @@ -/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */ -/* - * $Id: kernelcapi.h,v 1.8.6.2 2001/02/07 11:31:31 kai Exp $ - * - * Kernel CAPI 2.0 Interface for Linux - * - * (c) Copyright 1997 by Carsten Paeth (calle@calle.in-berlin.de) - * - */ - -#ifndef _UAPI__KERNELCAPI_H__ -#define _UAPI__KERNELCAPI_H__ - -#define CAPI_MAXAPPL 240 /* maximum number of applications */ -#define CAPI_MAXCONTR 32 /* maximum number of controller */ -#define CAPI_MAXDATAWINDOW 8 - - -typedef struct kcapi_flagdef { - int contr; - int flag; -} kcapi_flagdef; - -typedef struct kcapi_carddef { - char driver[32]; - unsigned int port; - unsigned irq; - unsigned int membase; - int cardnr; -} kcapi_carddef; - -/* new ioctls >= 10 */ -#define KCAPI_CMD_TRACE 10 -#define KCAPI_CMD_ADDCARD 11 /* OBSOLETE */ - -/* - * flag > 2 => trace also data - * flag & 1 => show trace - */ -#define KCAPI_TRACE_OFF 0 -#define KCAPI_TRACE_SHORT_NO_DATA 1 -#define KCAPI_TRACE_FULL_NO_DATA 2 -#define KCAPI_TRACE_SHORT 3 -#define KCAPI_TRACE_FULL 4 - - - -#endif /* _UAPI__KERNELCAPI_H__ */ |