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isdn: capi: dead code removal

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The staging isdn drivers are gone, and CONFIG_BT_CMTP is now
the only user. This means a lot of the code in the subsystem
has no remaining callers and can be removed.

Change the capi user space front-end to be part of kernelcapi,
and the combined module to only be compiled if BT_CMTP is
also enabled, then remove the interfaces that have no remaining
callers.

As the notifier list and the capi_drivers list have no callers
outside of kcapi.c, the implementation gets much simpler.

Some definitions from the include/linux/*.h headers are only
needed internally and are moved to kcapi.h.

Acked-by: David Miller <davem@davemloft.net>
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Link: https://lore.kernel.org/r/20191210210455.3475361-2-arnd@arndb.de
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
This commit is contained in:
Arnd Bergmann
2019-12-10 21:59:16 +01:00
committed by Greg Kroah-Hartman
parent f10870b05d
commit f59aba2f75
14 changed files with 182 additions and 1609 deletions
Download Patch File Download Diff File Expand all files Collapse all files

75
include/linux/kernelcapi.h
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@@ -10,46 +10,12 @@
#ifndef __KERNELCAPI_H__
#define __KERNELCAPI_H__
#include <linux/list.h>
#include <linux/skbuff.h>
#include <linux/workqueue.h>
#include <linux/notifier.h>
#include <uapi/linux/kernelcapi.h>
struct capi20_appl {
u16 applid;
capi_register_params rparam;
void (*recv_message)(struct capi20_appl *ap, struct sk_buff *skb);
void *private;
/* internal to kernelcapi.o */
unsigned long nrecvctlpkt;
unsigned long nrecvdatapkt;
unsigned long nsentctlpkt;
unsigned long nsentdatapkt;
struct mutex recv_mtx;
struct sk_buff_head recv_queue;
struct work_struct recv_work;
int release_in_progress;
};
u16 capi20_isinstalled(void);
u16 capi20_register(struct capi20_appl *ap);
u16 capi20_release(struct capi20_appl *ap);
u16 capi20_put_message(struct capi20_appl *ap, struct sk_buff *skb);
u16 capi20_get_manufacturer(u32 contr, u8 buf[CAPI_MANUFACTURER_LEN]);
u16 capi20_get_version(u32 contr, struct capi_version *verp);
u16 capi20_get_serial(u32 contr, u8 serial[CAPI_SERIAL_LEN]);
u16 capi20_get_profile(u32 contr, struct capi_profile *profp);
int capi20_manufacturer(unsigned long cmd, void __user *data);
#define CAPICTR_UP 0
#define CAPICTR_DOWN 1
int register_capictr_notifier(struct notifier_block *nb);
int unregister_capictr_notifier(struct notifier_block *nb);
#define CAPI_NOERROR 0x0000
#define CAPI_TOOMANYAPPLS 0x1001
@@ -76,45 +42,4 @@ int unregister_capictr_notifier(struct notifier_block *nb);
#define CAPI_MSGCTRLERNOTSUPPORTEXTEQUIP 0x110a
#define CAPI_MSGCTRLERONLYSUPPORTEXTEQUIP 0x110b
typedef enum {
CapiMessageNotSupportedInCurrentState = 0x2001,
CapiIllContrPlciNcci = 0x2002,
CapiNoPlciAvailable = 0x2003,
CapiNoNcciAvailable = 0x2004,
CapiNoListenResourcesAvailable = 0x2005,
CapiNoFaxResourcesAvailable = 0x2006,
CapiIllMessageParmCoding = 0x2007,
} RESOURCE_CODING_PROBLEM;
typedef enum {
CapiB1ProtocolNotSupported = 0x3001,
CapiB2ProtocolNotSupported = 0x3002,
CapiB3ProtocolNotSupported = 0x3003,
CapiB1ProtocolParameterNotSupported = 0x3004,
CapiB2ProtocolParameterNotSupported = 0x3005,
CapiB3ProtocolParameterNotSupported = 0x3006,
CapiBProtocolCombinationNotSupported = 0x3007,
CapiNcpiNotSupported = 0x3008,
CapiCipValueUnknown = 0x3009,
CapiFlagsNotSupported = 0x300a,
CapiFacilityNotSupported = 0x300b,
CapiDataLengthNotSupportedByCurrentProtocol = 0x300c,
CapiResetProcedureNotSupportedByCurrentProtocol = 0x300d,
CapiTeiAssignmentFailed = 0x300e,
} REQUESTED_SERVICES_PROBLEM;
typedef enum {
CapiSuccess = 0x0000,
CapiSupplementaryServiceNotSupported = 0x300e,
CapiRequestNotAllowedInThisState = 0x3010,
} SUPPLEMENTARY_SERVICE_INFO;
typedef enum {
CapiProtocolErrorLayer1 = 0x3301,
CapiProtocolErrorLayer2 = 0x3302,
CapiProtocolErrorLayer3 = 0x3303,
CapiTimeOut = 0x3303, // SuppServiceReason
CapiCallGivenToOtherApplication = 0x3304,
} CAPI_REASON;
#endif /* __KERNELCAPI_H__ */