ISDN: eicon: Remove driver

I started looking at the history of this driver, and last time the
maintainer was active on the mailing list was when discussing how to
remove it. This was in 2012:

https://lore.kernel.org/lkml/4F4DE175.30002@melware.de/

It looks to me like this has in practice been an orphan for quite a while.
It's throwing warnings about stack size in a function that is in dire
need of refactoring, and it's probably a case of "it's time to call it".

Cc: Armin Schindler <mac@melware.de>
Cc: Karsten Keil <isdn@linux-pingi.de>
Signed-off-by: Olof Johansson <olof@lixom.net>
Signed-off-by: David S. Miller <davem@davemloft.net>

1 files changed, 0 insertions, 886 deletions

diff --git a/drivers/isdn/hardware/eicon/um_idi.c b/drivers/isdn/hardware/eicon/um_idi.c
deleted file mode 100644
index db4dd4ff3642..000000000000
--- a/drivers/isdn/hardware/eicon/um_idi.c
+++ /dev/null
@@ -1,886 +0,0 @@
-// SPDX-License-Identifier: GPL-2.0
-/* $Id: um_idi.c,v 1.14 2004/03/21 17:54:37 armin Exp $ */
-
-#include "platform.h"
-#include "di_defs.h"
-#include "pc.h"
-#include "dqueue.h"
-#include "adapter.h"
-#include "entity.h"
-#include "um_xdi.h"
-#include "um_idi.h"
-#include "debuglib.h"
-#include "divasync.h"
-
-#define DIVAS_MAX_XDI_ADAPTERS	64
-
-/* --------------------------------------------------------------------------
-   IMPORTS
-   -------------------------------------------------------------------------- */
-extern void diva_os_wakeup_read(void *os_context);
-extern void diva_os_wakeup_close(void *os_context);
-/* --------------------------------------------------------------------------
-   LOCALS
-   -------------------------------------------------------------------------- */
-static LIST_HEAD(adapter_q);
-static diva_os_spin_lock_t adapter_lock;
-
-static diva_um_idi_adapter_t *diva_um_idi_find_adapter(dword nr);
-static void cleanup_adapter(diva_um_idi_adapter_t *a);
-static void cleanup_entity(divas_um_idi_entity_t *e);
-static int diva_user_mode_idi_adapter_features(diva_um_idi_adapter_t *a,
-					       diva_um_idi_adapter_features_t
-					       *features);
-static int process_idi_request(divas_um_idi_entity_t *e,
-			       const diva_um_idi_req_hdr_t *req);
-static int process_idi_rc(divas_um_idi_entity_t *e, byte rc);
-static int process_idi_ind(divas_um_idi_entity_t *e, byte ind);
-static int write_return_code(divas_um_idi_entity_t *e, byte rc);
-
-/* --------------------------------------------------------------------------
-   MAIN
-   -------------------------------------------------------------------------- */
-int diva_user_mode_idi_init(void)
-{
-	diva_os_initialize_spin_lock(&adapter_lock, "adapter");
-	return (0);
-}
-
-/* --------------------------------------------------------------------------
-   Copy adapter features to user supplied buffer
-   -------------------------------------------------------------------------- */
-static int
-diva_user_mode_idi_adapter_features(diva_um_idi_adapter_t *a,
-				    diva_um_idi_adapter_features_t *
-				    features)
-{
-	IDI_SYNC_REQ sync_req;
-
-	if ((a) && (a->d.request)) {
-		features->type = a->d.type;
-		features->features = a->d.features;
-		features->channels = a->d.channels;
-		memset(features->name, 0, sizeof(features->name));
-
-		sync_req.GetName.Req = 0;
-		sync_req.GetName.Rc = IDI_SYNC_REQ_GET_NAME;
-		(*(a->d.request)) ((ENTITY *)&sync_req);
-		strlcpy(features->name, sync_req.GetName.name,
-			sizeof(features->name));
-
-		sync_req.GetSerial.Req = 0;
-		sync_req.GetSerial.Rc = IDI_SYNC_REQ_GET_SERIAL;
-		sync_req.GetSerial.serial = 0;
-		(*(a->d.request))((ENTITY *)&sync_req);
-		features->serial_number = sync_req.GetSerial.serial;
-	}
-
-	return ((a) ? 0 : -1);
-}
-
-/* --------------------------------------------------------------------------
-   REMOVE ADAPTER
-   -------------------------------------------------------------------------- */
-void diva_user_mode_idi_remove_adapter(int adapter_nr)
-{
-	struct list_head *tmp;
-	diva_um_idi_adapter_t *a;
-
-	list_for_each(tmp, &adapter_q) {
-		a = list_entry(tmp, diva_um_idi_adapter_t, link);
-		if (a->adapter_nr == adapter_nr) {
-			list_del(tmp);
-			cleanup_adapter(a);
-			DBG_LOG(("DIDD: del adapter(%d)", a->adapter_nr));
-			diva_os_free(0, a);
-			break;
-		}
-	}
-}
-
-/* --------------------------------------------------------------------------
-   CALLED ON DRIVER EXIT (UNLOAD)
-   -------------------------------------------------------------------------- */
-void diva_user_mode_idi_finit(void)
-{
-	struct list_head *tmp, *safe;
-	diva_um_idi_adapter_t *a;
-
-	list_for_each_safe(tmp, safe, &adapter_q) {
-		a = list_entry(tmp, diva_um_idi_adapter_t, link);
-		list_del(tmp);
-		cleanup_adapter(a);
-		DBG_LOG(("DIDD: del adapter(%d)", a->adapter_nr));
-		diva_os_free(0, a);
-	}
-	diva_os_destroy_spin_lock(&adapter_lock, "adapter");
-}
-
-/* -------------------------------------------------------------------------
-   CREATE AND INIT IDI ADAPTER
-   ------------------------------------------------------------------------- */
-int diva_user_mode_idi_create_adapter(const DESCRIPTOR *d, int adapter_nr)
-{
-	diva_os_spin_lock_magic_t old_irql;
-	diva_um_idi_adapter_t *a =
-		(diva_um_idi_adapter_t *) diva_os_malloc(0,
-							 sizeof
-							 (diva_um_idi_adapter_t));
-
-	if (!a) {
-		return (-1);
-	}
-	memset(a, 0x00, sizeof(*a));
-	INIT_LIST_HEAD(&a->entity_q);
-
-	a->d = *d;
-	a->adapter_nr = adapter_nr;
-
-	DBG_LOG(("DIDD_ADD A(%d), type:%02x, features:%04x, channels:%d",
-		 adapter_nr, a->d.type, a->d.features, a->d.channels));
-
-	diva_os_enter_spin_lock(&adapter_lock, &old_irql, "create_adapter");
-	list_add_tail(&a->link, &adapter_q);
-	diva_os_leave_spin_lock(&adapter_lock, &old_irql, "create_adapter");
-	return (0);
-}
-
-/* ------------------------------------------------------------------------
-   Find adapter by Adapter number
-   ------------------------------------------------------------------------ */
-static diva_um_idi_adapter_t *diva_um_idi_find_adapter(dword nr)
-{
-	diva_um_idi_adapter_t *a = NULL;
-	struct list_head *tmp;
-
-	list_for_each(tmp, &adapter_q) {
-		a = list_entry(tmp, diva_um_idi_adapter_t, link);
-		DBG_TRC(("find_adapter: (%d)-(%d)", nr, a->adapter_nr));
-		if (a->adapter_nr == (int)nr)
-			break;
-		a = NULL;
-	}
-	return (a);
-}
-
-/* ------------------------------------------------------------------------
-   Cleanup this adapter and cleanup/delete all entities assigned
-   to this adapter
-   ------------------------------------------------------------------------ */
-static void cleanup_adapter(diva_um_idi_adapter_t *a)
-{
-	struct list_head *tmp, *safe;
-	divas_um_idi_entity_t *e;
-
-	list_for_each_safe(tmp, safe, &a->entity_q) {
-		e = list_entry(tmp, divas_um_idi_entity_t, link);
-		list_del(tmp);
-		cleanup_entity(e);
-		if (e->os_context) {
-			diva_os_wakeup_read(e->os_context);
-			diva_os_wakeup_close(e->os_context);
-		}
-	}
-	memset(&a->d, 0x00, sizeof(DESCRIPTOR));
-}
-
-/* ------------------------------------------------------------------------
-   Cleanup, but NOT delete this entity
-   ------------------------------------------------------------------------ */
-static void cleanup_entity(divas_um_idi_entity_t *e)
-{
-	e->os_ref = NULL;
-	e->status = 0;
-	e->adapter = NULL;
-	e->e.Id = 0;
-	e->rc_count = 0;
-
-	e->status |= DIVA_UM_IDI_REMOVED;
-	e->status |= DIVA_UM_IDI_REMOVE_PENDING;
-
-	diva_data_q_finit(&e->data);
-	diva_data_q_finit(&e->rc);
-}
-
-
-/* ------------------------------------------------------------------------
-   Create ENTITY, link it to the adapter and remove pointer to entity
-   ------------------------------------------------------------------------ */
-void *divas_um_idi_create_entity(dword adapter_nr, void *file)
-{
-	divas_um_idi_entity_t *e;
-	diva_um_idi_adapter_t *a;
-	diva_os_spin_lock_magic_t old_irql;
-
-	if ((e = (divas_um_idi_entity_t *) diva_os_malloc(0, sizeof(*e)))) {
-		memset(e, 0x00, sizeof(*e));
-		if (!
-		    (e->os_context =
-		     diva_os_malloc(0, diva_os_get_context_size()))) {
-			DBG_LOG(("E(%08x) no memory for os context", e));
-			diva_os_free(0, e);
-			return NULL;
-		}
-		memset(e->os_context, 0x00, diva_os_get_context_size());
-
-		if ((diva_data_q_init(&e->data, 2048 + 512, 16))) {
-			diva_os_free(0, e->os_context);
-			diva_os_free(0, e);
-			return NULL;
-		}
-		if ((diva_data_q_init(&e->rc, sizeof(diva_um_idi_ind_hdr_t), 2))) {
-			diva_data_q_finit(&e->data);
-			diva_os_free(0, e->os_context);
-			diva_os_free(0, e);
-			return NULL;
-		}
-
-		diva_os_enter_spin_lock(&adapter_lock, &old_irql, "create_entity");
-		/*
-		  Look for Adapter requested
-		*/
-		if (!(a = diva_um_idi_find_adapter(adapter_nr))) {
-			/*
-			  No adapter was found, or this adapter was removed
-			*/
-			diva_os_leave_spin_lock(&adapter_lock, &old_irql, "create_entity");
-
-			DBG_LOG(("A: no adapter(%ld)", adapter_nr));
-
-			cleanup_entity(e);
-			diva_os_free(0, e->os_context);
-			diva_os_free(0, e);
-
-			return NULL;
-		}
-
-		e->os_ref = file;	/* link to os handle */
-		e->adapter = a;	/* link to adapter   */
-
-		list_add_tail(&e->link, &a->entity_q);	/* link from adapter */
-
-		diva_os_leave_spin_lock(&adapter_lock, &old_irql, "create_entity");
-
-		DBG_LOG(("A(%ld), create E(%08x)", adapter_nr, e));
-	}
-
-	return (e);
-}
-
-/* ------------------------------------------------------------------------
-   Unlink entity and free memory
-   ------------------------------------------------------------------------ */
-int divas_um_idi_delete_entity(int adapter_nr, void *entity)
-{
-	divas_um_idi_entity_t *e;
-	diva_um_idi_adapter_t *a;
-	diva_os_spin_lock_magic_t old_irql;
-
-	if (!(e = (divas_um_idi_entity_t *) entity))
-		return (-1);
-
-	diva_os_enter_spin_lock(&adapter_lock, &old_irql, "delete_entity");
-	if ((a = e->adapter)) {
-		list_del(&e->link);
-	}
-	diva_os_leave_spin_lock(&adapter_lock, &old_irql, "delete_entity");
-
-	diva_um_idi_stop_wdog(entity);
-	cleanup_entity(e);
-	diva_os_free(0, e->os_context);
-	memset(e, 0x00, sizeof(*e));
-
-	DBG_LOG(("A(%d) remove E:%08x", adapter_nr, e));
-	diva_os_free(0, e);
-
-	return (0);
-}
-
-/* --------------------------------------------------------------------------
-   Called by application to read data from IDI
-   -------------------------------------------------------------------------- */
-int diva_um_idi_read(void *entity,
-		     void *os_handle,
-		     void *dst,
-		     int max_length, divas_um_idi_copy_to_user_fn_t cp_fn)
-{
-	divas_um_idi_entity_t *e;
-	diva_um_idi_adapter_t *a;
-	const void *data;
-	int length, ret = 0;
-	diva_um_idi_data_queue_t *q;
-	diva_os_spin_lock_magic_t old_irql;
-
-	diva_os_enter_spin_lock(&adapter_lock, &old_irql, "read");
-
-	e = (divas_um_idi_entity_t *) entity;
-	if (!e || (!(a = e->adapter)) ||
-	    (e->status & DIVA_UM_IDI_REMOVE_PENDING) ||
-	    (e->status & DIVA_UM_IDI_REMOVED) ||
-	    (a->status & DIVA_UM_IDI_ADAPTER_REMOVED)) {
-		diva_os_leave_spin_lock(&adapter_lock, &old_irql, "read");
-		DBG_ERR(("E(%08x) read failed - adapter removed", e))
-			return (-1);
-	}
-
-	DBG_TRC(("A(%d) E(%08x) read(%d)", a->adapter_nr, e, max_length));
-
-	/*
-	  Try to read return code first
-	*/
-	data = diva_data_q_get_segment4read(&e->rc);
-	q = &e->rc;
-
-	/*
-	  No return codes available, read indications now
-	*/
-	if (!data) {
-		if (!(e->status & DIVA_UM_IDI_RC_PENDING)) {
-			DBG_TRC(("A(%d) E(%08x) read data", a->adapter_nr, e));
-			data = diva_data_q_get_segment4read(&e->data);
-			q = &e->data;
-		}
-	} else {
-		e->status &= ~DIVA_UM_IDI_RC_PENDING;
-		DBG_TRC(("A(%d) E(%08x) read rc", a->adapter_nr, e));
-	}
-
-	if (data) {
-		if ((length = diva_data_q_get_segment_length(q)) >
-		    max_length) {
-			/*
-			  Not enough space to read message
-			*/
-			DBG_ERR(("A: A(%d) E(%08x) read small buffer",
-				 a->adapter_nr, e, ret));
-			diva_os_leave_spin_lock(&adapter_lock, &old_irql,
-						"read");
-			return (-2);
-		}
-		/*
-		  Copy it to user, this function does access ONLY locked an verified
-		  memory, also we can access it witch spin lock held
-		*/
-
-		if ((ret = (*cp_fn) (os_handle, dst, data, length)) >= 0) {
-			/*
-			  Acknowledge only if read was successful
-			*/
-			diva_data_q_ack_segment4read(q);
-		}
-	}
-
-
-	DBG_TRC(("A(%d) E(%08x) read=%d", a->adapter_nr, e, ret));
-
-	diva_os_leave_spin_lock(&adapter_lock, &old_irql, "read");
-
-	return (ret);
-}
-
-
-int diva_um_idi_write(void *entity,
-		      void *os_handle,
-		      const void *src,
-		      int length, divas_um_idi_copy_from_user_fn_t cp_fn)
-{
-	divas_um_idi_entity_t *e;
-	diva_um_idi_adapter_t *a;
-	diva_um_idi_req_hdr_t *req;
-	void *data;
-	int ret = 0;
-	diva_os_spin_lock_magic_t old_irql;
-
-	diva_os_enter_spin_lock(&adapter_lock, &old_irql, "write");
-
-	e = (divas_um_idi_entity_t *) entity;
-	if (!e || (!(a = e->adapter)) ||
-	    (e->status & DIVA_UM_IDI_REMOVE_PENDING) ||
-	    (e->status & DIVA_UM_IDI_REMOVED) ||
-	    (a->status & DIVA_UM_IDI_ADAPTER_REMOVED)) {
-		diva_os_leave_spin_lock(&adapter_lock, &old_irql, "write");
-		DBG_ERR(("E(%08x) write failed - adapter removed", e))
-			return (-1);
-	}
-
-	DBG_TRC(("A(%d) E(%08x) write(%d)", a->adapter_nr, e, length));
-
-	if ((length < sizeof(*req)) || (length > sizeof(e->buffer))) {
-		diva_os_leave_spin_lock(&adapter_lock, &old_irql, "write");
-		return (-2);
-	}
-
-	if (e->status & DIVA_UM_IDI_RC_PENDING) {
-		DBG_ERR(("A: A(%d) E(%08x) rc pending", a->adapter_nr, e));
-		diva_os_leave_spin_lock(&adapter_lock, &old_irql, "write");
-		return (-1);	/* should wait for RC code first */
-	}
-
-	/*
-	  Copy function does access only locked verified memory,
-	  also it can be called with spin lock held
-	*/
-	if ((ret = (*cp_fn) (os_handle, e->buffer, src, length)) < 0) {
-		DBG_TRC(("A: A(%d) E(%08x) write error=%d", a->adapter_nr,
-			 e, ret));
-		diva_os_leave_spin_lock(&adapter_lock, &old_irql, "write");
-		return (ret);
-	}
-
-	req = (diva_um_idi_req_hdr_t *)&e->buffer[0];
-
-	switch (req->type) {
-	case DIVA_UM_IDI_GET_FEATURES:{
-		DBG_LOG(("A(%d) get_features", a->adapter_nr));
-		if (!(data =
-		      diva_data_q_get_segment4write(&e->data))) {
-			DBG_ERR(("A(%d) get_features, no free buffer",
-				 a->adapter_nr));
-			diva_os_leave_spin_lock(&adapter_lock,
-						&old_irql,
-						"write");
-			return (0);
-		}
-		diva_user_mode_idi_adapter_features(a, &(((diva_um_idi_ind_hdr_t
-							   *) data)->hdr.features));
-		((diva_um_idi_ind_hdr_t *) data)->type =
-			DIVA_UM_IDI_IND_FEATURES;
-		((diva_um_idi_ind_hdr_t *) data)->data_length = 0;
-		diva_data_q_ack_segment4write(&e->data,
-					      sizeof(diva_um_idi_ind_hdr_t));
-
-		diva_os_leave_spin_lock(&adapter_lock, &old_irql, "write");
-
-		diva_os_wakeup_read(e->os_context);
-	}
-		break;
-
-	case DIVA_UM_IDI_REQ:
-	case DIVA_UM_IDI_REQ_MAN:
-	case DIVA_UM_IDI_REQ_SIG:
-	case DIVA_UM_IDI_REQ_NET:
-		DBG_TRC(("A(%d) REQ(%02d)-(%02d)-(%08x)", a->adapter_nr,
-			 req->Req, req->ReqCh,
-			 req->type & DIVA_UM_IDI_REQ_TYPE_MASK));
-		switch (process_idi_request(e, req)) {
-		case -1:
-			diva_os_leave_spin_lock(&adapter_lock, &old_irql, "write");
-			return (-1);
-		case -2:
-			diva_os_leave_spin_lock(&adapter_lock, &old_irql, "write");
-			diva_os_wakeup_read(e->os_context);
-			break;
-		default:
-			diva_os_leave_spin_lock(&adapter_lock, &old_irql, "write");
-			break;
-		}
-		break;
-
-	default:
-		diva_os_leave_spin_lock(&adapter_lock, &old_irql, "write");
-		return (-1);
-	}
-
-	DBG_TRC(("A(%d) E(%08x) write=%d", a->adapter_nr, e, ret));
-
-	return (ret);
-}
-
-/* --------------------------------------------------------------------------
-   CALLBACK FROM XDI
-   -------------------------------------------------------------------------- */
-static void diva_um_idi_xdi_callback(ENTITY *entity)
-{
-	divas_um_idi_entity_t *e = DIVAS_CONTAINING_RECORD(entity,
-							   divas_um_idi_entity_t,
-							   e);
-	diva_os_spin_lock_magic_t old_irql;
-	int call_wakeup = 0;
-
-	diva_os_enter_spin_lock(&adapter_lock, &old_irql, "xdi_callback");
-
-	if (e->e.complete == 255) {
-		if (!(e->status & DIVA_UM_IDI_REMOVE_PENDING)) {
-			diva_um_idi_stop_wdog(e);
-		}
-		if ((call_wakeup = process_idi_rc(e, e->e.Rc))) {
-			if (e->rc_count) {
-				e->rc_count--;
-			}
-		}
-		e->e.Rc = 0;
-		diva_os_leave_spin_lock(&adapter_lock, &old_irql, "xdi_callback");
-
-		if (call_wakeup) {
-			diva_os_wakeup_read(e->os_context);
-			diva_os_wakeup_close(e->os_context);
-		}
-	} else {
-		if (e->status & DIVA_UM_IDI_REMOVE_PENDING) {
-			e->e.RNum = 0;
-			e->e.RNR = 2;
-		} else {
-			call_wakeup = process_idi_ind(e, e->e.Ind);
-		}
-		e->e.Ind = 0;
-		diva_os_leave_spin_lock(&adapter_lock, &old_irql, "xdi_callback");
-		if (call_wakeup) {
-			diva_os_wakeup_read(e->os_context);
-		}
-	}
-}
-
-static int process_idi_request(divas_um_idi_entity_t *e,
-			       const diva_um_idi_req_hdr_t *req)
-{
-	int assign = 0;
-	byte Req = (byte) req->Req;
-	dword type = req->type & DIVA_UM_IDI_REQ_TYPE_MASK;
-
-	if (!e->e.Id || !e->e.callback) {	/* not assigned */
-		if (Req != ASSIGN) {
-			DBG_ERR(("A: A(%d) E(%08x) not assigned",
-				 e->adapter->adapter_nr, e));
-			return (-1);	/* NOT ASSIGNED */
-		} else {
-			switch (type) {
-			case DIVA_UM_IDI_REQ_TYPE_MAN:
-				e->e.Id = MAN_ID;
-				DBG_TRC(("A(%d) E(%08x) assign MAN",
-					 e->adapter->adapter_nr, e));
-				break;
-
-			case DIVA_UM_IDI_REQ_TYPE_SIG:
-				e->e.Id = DSIG_ID;
-				DBG_TRC(("A(%d) E(%08x) assign SIG",
-					 e->adapter->adapter_nr, e));
-				break;
-
-			case DIVA_UM_IDI_REQ_TYPE_NET:
-				e->e.Id = NL_ID;
-				DBG_TRC(("A(%d) E(%08x) assign NET",
-					 e->adapter->adapter_nr, e));
-				break;
-
-			default:
-				DBG_ERR(("A: A(%d) E(%08x) unknown type=%08x",
-					 e->adapter->adapter_nr, e,
-					 type));
-				return (-1);
-			}
-		}
-		e->e.XNum = 1;
-		e->e.RNum = 1;
-		e->e.callback = diva_um_idi_xdi_callback;
-		e->e.X = &e->XData;
-		e->e.R = &e->RData;
-		assign = 1;
-	}
-	e->status |= DIVA_UM_IDI_RC_PENDING;
-	e->e.Req = Req;
-	e->e.ReqCh = (byte) req->ReqCh;
-	e->e.X->PLength = (word) req->data_length;
-	e->e.X->P = (byte *)&req[1];	/* Our buffer is safe */
-
-	DBG_TRC(("A(%d) E(%08x) request(%02x-%02x-%02x (%d))",
-		 e->adapter->adapter_nr, e, e->e.Id, e->e.Req,
-		 e->e.ReqCh, e->e.X->PLength));
-
-	e->rc_count++;
-
-	if (e->adapter && e->adapter->d.request) {
-		diva_um_idi_start_wdog(e);
-		(*(e->adapter->d.request)) (&e->e);
-	}
-
-	if (assign) {
-		if (e->e.Rc == OUT_OF_RESOURCES) {
-			/*
-			  XDI has no entities more, call was not forwarded to the card,
-			  no callback will be scheduled
-			*/
-			DBG_ERR(("A: A(%d) E(%08x) XDI out of entities",
-				 e->adapter->adapter_nr, e));
-
-			e->e.Id = 0;
-			e->e.ReqCh = 0;
-			e->e.RcCh = 0;
-			e->e.Ind = 0;
-			e->e.IndCh = 0;
-			e->e.XNum = 0;
-			e->e.RNum = 0;
-			e->e.callback = NULL;
-			e->e.X = NULL;
-			e->e.R = NULL;
-			write_return_code(e, ASSIGN_RC | OUT_OF_RESOURCES);
-			return (-2);
-		} else {
-			e->status |= DIVA_UM_IDI_ASSIGN_PENDING;
-		}
-	}
-
-	return (0);
-}
-
-static int process_idi_rc(divas_um_idi_entity_t *e, byte rc)
-{
-	DBG_TRC(("A(%d) E(%08x) rc(%02x-%02x-%02x)",
-		 e->adapter->adapter_nr, e, e->e.Id, rc, e->e.RcCh));
-
-	if (e->status & DIVA_UM_IDI_ASSIGN_PENDING) {
-		e->status &= ~DIVA_UM_IDI_ASSIGN_PENDING;
-		if (rc != ASSIGN_OK) {
-			DBG_ERR(("A: A(%d) E(%08x) ASSIGN failed",
-				 e->adapter->adapter_nr, e));
-			e->e.callback = NULL;
-			e->e.Id = 0;
-			e->e.Req = 0;
-			e->e.ReqCh = 0;
-			e->e.Rc = 0;
-			e->e.RcCh = 0;
-			e->e.Ind = 0;
-			e->e.IndCh = 0;
-			e->e.X = NULL;
-			e->e.R = NULL;
-			e->e.XNum = 0;
-			e->e.RNum = 0;
-		}
-	}
-	if ((e->e.Req == REMOVE) && e->e.Id && (rc == 0xff)) {
-		DBG_ERR(("A: A(%d) E(%08x)  discard OK in REMOVE",
-			 e->adapter->adapter_nr, e));
-		return (0);	/* let us do it in the driver */
-	}
-	if ((e->e.Req == REMOVE) && (!e->e.Id)) {	/* REMOVE COMPLETE */
-		e->e.callback = NULL;
-		e->e.Id = 0;
-		e->e.Req = 0;
-		e->e.ReqCh = 0;
-		e->e.Rc = 0;
-		e->e.RcCh = 0;
-		e->e.Ind = 0;
-		e->e.IndCh = 0;
-		e->e.X = NULL;
-		e->e.R = NULL;
-		e->e.XNum = 0;
-		e->e.RNum = 0;
-		e->rc_count = 0;
-	}
-	if ((e->e.Req == REMOVE) && (rc != 0xff)) {	/* REMOVE FAILED */
-		DBG_ERR(("A: A(%d) E(%08x)  REMOVE FAILED",
-			 e->adapter->adapter_nr, e));
-	}
-	write_return_code(e, rc);
-
-	return (1);
-}
-
-static int process_idi_ind(divas_um_idi_entity_t *e, byte ind)
-{
-	int do_wakeup = 0;
-
-	if (e->e.complete != 0x02) {
-		diva_um_idi_ind_hdr_t *pind =
-			(diva_um_idi_ind_hdr_t *)
-			diva_data_q_get_segment4write(&e->data);
-		if (pind) {
-			e->e.RNum = 1;
-			e->e.R->P = (byte *)&pind[1];
-			e->e.R->PLength =
-				(word) (diva_data_q_get_max_length(&e->data) -
-					sizeof(*pind));
-			DBG_TRC(("A(%d) E(%08x) ind_1(%02x-%02x-%02x)-[%d-%d]",
-				 e->adapter->adapter_nr, e, e->e.Id, ind,
-				 e->e.IndCh, e->e.RLength,
-				 e->e.R->PLength));
-
-		} else {
-			DBG_TRC(("A(%d) E(%08x) ind(%02x-%02x-%02x)-RNR",
-				 e->adapter->adapter_nr, e, e->e.Id, ind,
-				 e->e.IndCh));
-			e->e.RNum = 0;
-			e->e.RNR = 1;
-			do_wakeup = 1;
-		}
-	} else {
-		diva_um_idi_ind_hdr_t *pind =
-			(diva_um_idi_ind_hdr_t *) (e->e.R->P);
-
-		DBG_TRC(("A(%d) E(%08x) ind(%02x-%02x-%02x)-[%d]",
-			 e->adapter->adapter_nr, e, e->e.Id, ind,
-			 e->e.IndCh, e->e.R->PLength));
-
-		pind--;
-		pind->type = DIVA_UM_IDI_IND;
-		pind->hdr.ind.Ind = ind;
-		pind->hdr.ind.IndCh = e->e.IndCh;
-		pind->data_length = e->e.R->PLength;
-		diva_data_q_ack_segment4write(&e->data,
-					      (int) (sizeof(*pind) +
-						     e->e.R->PLength));
-		do_wakeup = 1;
-	}
-
-	if ((e->status & DIVA_UM_IDI_RC_PENDING) && !e->rc.count) {
-		do_wakeup = 0;
-	}
-
-	return (do_wakeup);
-}
-
-/* --------------------------------------------------------------------------
-   Write return code to the return code queue of entity
-   -------------------------------------------------------------------------- */
-static int write_return_code(divas_um_idi_entity_t *e, byte rc)
-{
-	diva_um_idi_ind_hdr_t *prc;
-
-	if (!(prc =
-	      (diva_um_idi_ind_hdr_t *) diva_data_q_get_segment4write(&e->rc)))
-	{
-		DBG_ERR(("A: A(%d) E(%08x) rc(%02x) lost",
-			 e->adapter->adapter_nr, e, rc));
-		e->status &= ~DIVA_UM_IDI_RC_PENDING;
-		return (-1);
-	}
-
-	prc->type = DIVA_UM_IDI_IND_RC;
-	prc->hdr.rc.Rc = rc;
-	prc->hdr.rc.RcCh = e->e.RcCh;
-	prc->data_length = 0;
-	diva_data_q_ack_segment4write(&e->rc, sizeof(*prc));
-
-	return (0);
-}
-
-/* --------------------------------------------------------------------------
-   Return amount of entries that can be bead from this entity or
-   -1 if adapter was removed
-   -------------------------------------------------------------------------- */
-int diva_user_mode_idi_ind_ready(void *entity, void *os_handle)
-{
-	divas_um_idi_entity_t *e;
-	diva_um_idi_adapter_t *a;
-	diva_os_spin_lock_magic_t old_irql;
-	int ret;
-
-	if (!entity)
-		return (-1);
-	diva_os_enter_spin_lock(&adapter_lock, &old_irql, "ind_ready");
-	e = (divas_um_idi_entity_t *) entity;
-	a = e->adapter;
-
-	if ((!a) || (a->status & DIVA_UM_IDI_ADAPTER_REMOVED)) {
-		/*
-		  Adapter was unloaded
-		*/
-		diva_os_leave_spin_lock(&adapter_lock, &old_irql, "ind_ready");
-		return (-1);	/* adapter was removed */
-	}
-	if (e->status & DIVA_UM_IDI_REMOVED) {
-		/*
-		  entity was removed as result of adapter removal
-		  user should assign this entity again
-		*/
-		diva_os_leave_spin_lock(&adapter_lock, &old_irql, "ind_ready");
-		return (-1);
-	}
-
-	ret = e->rc.count + e->data.count;
-
-	if ((e->status & DIVA_UM_IDI_RC_PENDING) && !e->rc.count) {
-		ret = 0;
-	}
-
-	diva_os_leave_spin_lock(&adapter_lock, &old_irql, "ind_ready");
-
-	return (ret);
-}
-
-void *diva_um_id_get_os_context(void *entity)
-{
-	return (((divas_um_idi_entity_t *) entity)->os_context);
-}
-
-int divas_um_idi_entity_assigned(void *entity)
-{
-	divas_um_idi_entity_t *e;
-	diva_um_idi_adapter_t *a;
-	int ret;
-	diva_os_spin_lock_magic_t old_irql;
-
-	diva_os_enter_spin_lock(&adapter_lock, &old_irql, "assigned?");
-
-
-	e = (divas_um_idi_entity_t *) entity;
-	if (!e || (!(a = e->adapter)) ||
-	    (e->status & DIVA_UM_IDI_REMOVED) ||
-	    (a->status & DIVA_UM_IDI_ADAPTER_REMOVED)) {
-		diva_os_leave_spin_lock(&adapter_lock, &old_irql, "assigned?");
-		return (0);
-	}
-
-	e->status |= DIVA_UM_IDI_REMOVE_PENDING;
-
-	ret = (e->e.Id || e->rc_count
-	       || (e->status & DIVA_UM_IDI_ASSIGN_PENDING));
-
-	DBG_TRC(("Id:%02x, rc_count:%d, status:%08x", e->e.Id, e->rc_count,
-		 e->status))
-
-		diva_os_leave_spin_lock(&adapter_lock, &old_irql, "assigned?");
-
-	return (ret);
-}
-
-int divas_um_idi_entity_start_remove(void *entity)
-{
-	divas_um_idi_entity_t *e;
-	diva_um_idi_adapter_t *a;
-	diva_os_spin_lock_magic_t old_irql;
-
-	diva_os_enter_spin_lock(&adapter_lock, &old_irql, "start_remove");
-
-	e = (divas_um_idi_entity_t *) entity;
-	if (!e || (!(a = e->adapter)) ||
-	    (e->status & DIVA_UM_IDI_REMOVED) ||
-	    (a->status & DIVA_UM_IDI_ADAPTER_REMOVED)) {
-		diva_os_leave_spin_lock(&adapter_lock, &old_irql, "start_remove");
-		return (0);
-	}
-
-	if (e->rc_count) {
-		/*
-		  Entity BUSY
-		*/
-		diva_os_leave_spin_lock(&adapter_lock, &old_irql, "start_remove");
-		return (1);
-	}
-
-	if (!e->e.Id) {
-		/*
-		  Remove request was already pending, and arrived now
-		*/
-		diva_os_leave_spin_lock(&adapter_lock, &old_irql, "start_remove");
-		return (0);	/* REMOVE was pending */
-	}
-
-	/*
-	  Now send remove request
-	*/
-	e->e.Req = REMOVE;
-	e->e.ReqCh = 0;
-
-	e->rc_count++;
-
-	DBG_TRC(("A(%d) E(%08x) request(%02x-%02x-%02x (%d))",
-		 e->adapter->adapter_nr, e, e->e.Id, e->e.Req,
-		 e->e.ReqCh, e->e.X->PLength));
-
-	if (a->d.request)
-		(*(a->d.request)) (&e->e);
-
-	diva_os_leave_spin_lock(&adapter_lock, &old_irql, "start_remove");
-
-	return (0);
-}