ieee1394: remove the old IEEE 1394 driver stack

The drivers
  - ohci1394 (controller driver)
  - ieee1394 (core)
  - dv1394, raw1394, video1394 (userspace ABI)
  - eth1394, sbp2 (protocol drivers)
are replaced by
  - firewire-ohci (controller driver)
  - firewire-core (core and userspace ABI)
  - firewire-net, firewire-sbp2 (protocol drivers)
which are more featureful, better performing, and more secure than the older
drivers; all with a smaller and more modern code base.

The driver firedtv in drivers/media/dvb/firewire/ contains backends to both
ieee1394 and firewire-core.  Its ieee1394 backend code can be removed in an
independent commit; firedtv as-is builds and works fine without ieee1394.

The driver pcilynx (an incomplete controller driver) is deleted without
replacement since PCILynx cards are extremely rare.  Owners of these cards
use them with the stand-alone bus sniffer driver nosy instead.

The drivers nosy and init_ohci1394_dma which do not interact with either of
the two IEEE 1394 stacks are not affected by the ieee1394 subsystem removal.

There are still some issues with the newer firewire subsystem compared to
the older one:
  - The rare and quirky controllers ALi M52xx, Apple UniNorth v1, NVIDIA
    NForce2 are even less well supported by firewire-ohci than by ohci1394.
    I am looking into the M52xx issue.
  - The experimental firewire-net is reportedly less stable than its
    experimental cousin eth1394.
  - Audio playback of a certain group of audio devices (ones based on DICE
    chipset with EAP; supported by prerelease FFADO code) does not work yet.
    This issue is still under investigation.
  - There were some ieee1394 based out-of-the-mainline drivers.  Of them,
    only lisight, an audio driver for iSight webcams, seems still useful.
    Work is underway to reimplement it on top of firewire-core.

All these remainig issues are minor; they should not stand in the way of
overall better user experience of IEEE 1394 on Linux, together with a
reduction in support efforts and maintenance burden.  The coexistence of two
IEEE 1394 kernel driver stacks in the mainline since 2.6.22 shall end now,
as announced earlier this year.

Signed-off-by: Stefan Richter <stefanr@s5r6.in-berlin.de>

1 files changed, 0 insertions, 691 deletions

diff --git a/drivers/ieee1394/highlevel.c b/drivers/ieee1394/highlevel.c
deleted file mode 100644
index 4bc443546e04..000000000000
--- a/drivers/ieee1394/highlevel.c
+++ /dev/null
@@ -1,691 +0,0 @@
-/*
- * IEEE 1394 for Linux
- *
- * Copyright (C) 1999 Andreas E. Bombe
- *
- * This code is licensed under the GPL.  See the file COPYING in the root
- * directory of the kernel sources for details.
- *
- *
- * Contributions:
- *
- * Christian Toegel <christian.toegel@gmx.at>
- *        unregister address space
- *
- * Manfred Weihs <weihs@ict.tuwien.ac.at>
- *        unregister address space
- *
- */
-
-#include <linux/slab.h>
-#include <linux/list.h>
-#include <linux/bitops.h>
-
-#include "ieee1394.h"
-#include "ieee1394_types.h"
-#include "hosts.h"
-#include "ieee1394_core.h"
-#include "highlevel.h"
-#include "nodemgr.h"
-
-
-struct hl_host_info {
-	struct list_head list;
-	struct hpsb_host *host;
-	size_t size;
-	unsigned long key;
-	void *data;
-};
-
-
-static LIST_HEAD(hl_drivers);
-static DECLARE_RWSEM(hl_drivers_sem);
-
-static LIST_HEAD(hl_irqs);
-static DEFINE_RWLOCK(hl_irqs_lock);
-
-static DEFINE_RWLOCK(addr_space_lock);
-
-
-static struct hl_host_info *hl_get_hostinfo(struct hpsb_highlevel *hl,
-					    struct hpsb_host *host)
-{
-	struct hl_host_info *hi = NULL;
-
-	if (!hl || !host)
-		return NULL;
-
-	read_lock(&hl->host_info_lock);
-	list_for_each_entry(hi, &hl->host_info_list, list) {
-		if (hi->host == host) {
-			read_unlock(&hl->host_info_lock);
-			return hi;
-		}
-	}
-	read_unlock(&hl->host_info_lock);
-	return NULL;
-}
-
-/**
- * hpsb_get_hostinfo - retrieve a hostinfo pointer bound to this driver/host
- *
- * Returns a per @host and @hl driver data structure that was previously stored
- * by hpsb_create_hostinfo.
- */
-void *hpsb_get_hostinfo(struct hpsb_highlevel *hl, struct hpsb_host *host)
-{
-	struct hl_host_info *hi = hl_get_hostinfo(hl, host);
-
-	return hi ? hi->data : NULL;
-}
-
-/**
- * hpsb_create_hostinfo - allocate a hostinfo pointer bound to this driver/host
- *
- * Allocate a hostinfo pointer backed by memory with @data_size and bind it to
- * to this @hl driver and @host.  If @data_size is zero, then the return here is
- * only valid for error checking.
- */
-void *hpsb_create_hostinfo(struct hpsb_highlevel *hl, struct hpsb_host *host,
-			   size_t data_size)
-{
-	struct hl_host_info *hi;
-	void *data;
-	unsigned long flags;
-
-	hi = hl_get_hostinfo(hl, host);
-	if (hi) {
-		HPSB_ERR("%s called hpsb_create_hostinfo when hostinfo already"
-			 " exists", hl->name);
-		return NULL;
-	}
-
-	hi = kzalloc(sizeof(*hi) + data_size, GFP_ATOMIC);
-	if (!hi)
-		return NULL;
-
-	if (data_size) {
-		data = hi->data = hi + 1;
-		hi->size = data_size;
-	} else
-		data = hi;
-
-	hi->host = host;
-
-	write_lock_irqsave(&hl->host_info_lock, flags);
-	list_add_tail(&hi->list, &hl->host_info_list);
-	write_unlock_irqrestore(&hl->host_info_lock, flags);
-
-	return data;
-}
-
-/**
- * hpsb_set_hostinfo - set the hostinfo pointer to something useful
- *
- * Usually follows a call to hpsb_create_hostinfo, where the size is 0.
- */
-int hpsb_set_hostinfo(struct hpsb_highlevel *hl, struct hpsb_host *host,
-		      void *data)
-{
-	struct hl_host_info *hi;
-
-	hi = hl_get_hostinfo(hl, host);
-	if (hi) {
-		if (!hi->size && !hi->data) {
-			hi->data = data;
-			return 0;
-		} else
-			HPSB_ERR("%s called hpsb_set_hostinfo when hostinfo "
-				 "already has data", hl->name);
-	} else
-		HPSB_ERR("%s called hpsb_set_hostinfo when no hostinfo exists",
-			 hl->name);
-	return -EINVAL;
-}
-
-/**
- * hpsb_destroy_hostinfo - free and remove a hostinfo pointer
- *
- * Free and remove the hostinfo pointer bound to this @hl driver and @host.
- */
-void hpsb_destroy_hostinfo(struct hpsb_highlevel *hl, struct hpsb_host *host)
-{
-	struct hl_host_info *hi;
-
-	hi = hl_get_hostinfo(hl, host);
-	if (hi) {
-		unsigned long flags;
-		write_lock_irqsave(&hl->host_info_lock, flags);
-		list_del(&hi->list);
-		write_unlock_irqrestore(&hl->host_info_lock, flags);
-		kfree(hi);
-	}
-	return;
-}
-
-/**
- * hpsb_set_hostinfo_key - set an alternate lookup key for an hostinfo
- *
- * Sets an alternate lookup key for the hostinfo bound to this @hl driver and
- * @host.
- */
-void hpsb_set_hostinfo_key(struct hpsb_highlevel *hl, struct hpsb_host *host,
-			   unsigned long key)
-{
-	struct hl_host_info *hi;
-
-	hi = hl_get_hostinfo(hl, host);
-	if (hi)
-		hi->key = key;
-	return;
-}
-
-/**
- * hpsb_get_hostinfo_bykey - retrieve a hostinfo pointer by its alternate key
- */
-void *hpsb_get_hostinfo_bykey(struct hpsb_highlevel *hl, unsigned long key)
-{
-	struct hl_host_info *hi;
-	void *data = NULL;
-
-	if (!hl)
-		return NULL;
-
-	read_lock(&hl->host_info_lock);
-	list_for_each_entry(hi, &hl->host_info_list, list) {
-		if (hi->key == key) {
-			data = hi->data;
-			break;
-		}
-	}
-	read_unlock(&hl->host_info_lock);
-	return data;
-}
-
-static int highlevel_for_each_host_reg(struct hpsb_host *host, void *__data)
-{
-	struct hpsb_highlevel *hl = __data;
-
-	hl->add_host(host);
-
-	if (host->update_config_rom && hpsb_update_config_rom_image(host) < 0)
-		HPSB_ERR("Failed to generate Configuration ROM image for host "
-			 "%s-%d", hl->name, host->id);
-	return 0;
-}
-
-/**
- * hpsb_register_highlevel - register highlevel driver
- *
- * The name pointer in @hl has to stay valid at all times because the string is
- * not copied.
- */
-void hpsb_register_highlevel(struct hpsb_highlevel *hl)
-{
-	unsigned long flags;
-
-	hpsb_init_highlevel(hl);
-	INIT_LIST_HEAD(&hl->addr_list);
-
-	down_write(&hl_drivers_sem);
-	list_add_tail(&hl->hl_list, &hl_drivers);
-	up_write(&hl_drivers_sem);
-
-	write_lock_irqsave(&hl_irqs_lock, flags);
-	list_add_tail(&hl->irq_list, &hl_irqs);
-	write_unlock_irqrestore(&hl_irqs_lock, flags);
-
-	if (hl->add_host)
-		nodemgr_for_each_host(hl, highlevel_for_each_host_reg);
-	return;
-}
-
-static void __delete_addr(struct hpsb_address_serve *as)
-{
-	list_del(&as->host_list);
-	list_del(&as->hl_list);
-	kfree(as);
-}
-
-static void __unregister_host(struct hpsb_highlevel *hl, struct hpsb_host *host,
-			      int update_cr)
-{
-	unsigned long flags;
-	struct list_head *lh, *next;
-	struct hpsb_address_serve *as;
-
-	/* First, let the highlevel driver unreg */
-	if (hl->remove_host)
-		hl->remove_host(host);
-
-	/* Remove any addresses that are matched for this highlevel driver
-	 * and this particular host. */
-	write_lock_irqsave(&addr_space_lock, flags);
-	list_for_each_safe (lh, next, &hl->addr_list) {
-		as = list_entry(lh, struct hpsb_address_serve, hl_list);
-		if (as->host == host)
-			__delete_addr(as);
-	}
-	write_unlock_irqrestore(&addr_space_lock, flags);
-
-	/* Now update the config-rom to reflect anything removed by the
-	 * highlevel driver. */
-	if (update_cr && host->update_config_rom &&
-	    hpsb_update_config_rom_image(host) < 0)
-		HPSB_ERR("Failed to generate Configuration ROM image for host "
-			 "%s-%d", hl->name, host->id);
-
-	/* Finally remove all the host info associated between these two. */
-	hpsb_destroy_hostinfo(hl, host);
-}
-
-static int highlevel_for_each_host_unreg(struct hpsb_host *host, void *__data)
-{
-	struct hpsb_highlevel *hl = __data;
-
-	__unregister_host(hl, host, 1);
-	return 0;
-}
-
-/**
- * hpsb_unregister_highlevel - unregister highlevel driver
- */
-void hpsb_unregister_highlevel(struct hpsb_highlevel *hl)
-{
-	unsigned long flags;
-
-	write_lock_irqsave(&hl_irqs_lock, flags);
-	list_del(&hl->irq_list);
-	write_unlock_irqrestore(&hl_irqs_lock, flags);
-
-	down_write(&hl_drivers_sem);
-	list_del(&hl->hl_list);
-	up_write(&hl_drivers_sem);
-
-	nodemgr_for_each_host(hl, highlevel_for_each_host_unreg);
-}
-
-/**
- * hpsb_allocate_and_register_addrspace - alloc' and reg' a host address space
- *
- * @start and @end are 48 bit pointers and have to be quadlet aligned.
- * @end points to the first address behind the handled addresses.  This
- * function can be called multiple times for a single hpsb_highlevel @hl to
- * implement sparse register sets.  The requested region must not overlap any
- * previously allocated region, otherwise registering will fail.
- *
- * It returns true for successful allocation.  Address spaces can be
- * unregistered with hpsb_unregister_addrspace.  All remaining address spaces
- * are automatically deallocated together with the hpsb_highlevel @hl.
- */
-u64 hpsb_allocate_and_register_addrspace(struct hpsb_highlevel *hl,
-					 struct hpsb_host *host,
-					 const struct hpsb_address_ops *ops,
-					 u64 size, u64 alignment,
-					 u64 start, u64 end)
-{
-	struct hpsb_address_serve *as, *a1, *a2;
-	struct list_head *entry;
-	u64 retval = CSR1212_INVALID_ADDR_SPACE;
-	unsigned long flags;
-	u64 align_mask = ~(alignment - 1);
-
-	if ((alignment & 3) || (alignment > 0x800000000000ULL) ||
-	    (hweight64(alignment) != 1)) {
-		HPSB_ERR("%s called with invalid alignment: 0x%048llx",
-			 __func__, (unsigned long long)alignment);
-		return retval;
-	}
-
-	/* default range,
-	 * avoids controller's posted write area (see OHCI 1.1 clause 1.5) */
-	if (start == CSR1212_INVALID_ADDR_SPACE &&
-	    end   == CSR1212_INVALID_ADDR_SPACE) {
-		start = host->middle_addr_space;
-		end   = CSR1212_ALL_SPACE_END;
-	}
-
-	if (((start|end) & ~align_mask) || (start >= end) ||
-	    (end > CSR1212_ALL_SPACE_END)) {
-		HPSB_ERR("%s called with invalid addresses "
-			 "(start = %012Lx  end = %012Lx)", __func__,
-			 (unsigned long long)start,(unsigned long long)end);
-		return retval;
-	}
-
-	as = kmalloc(sizeof(*as), GFP_KERNEL);
-	if (!as)
-		return retval;
-
-	INIT_LIST_HEAD(&as->host_list);
-	INIT_LIST_HEAD(&as->hl_list);
-	as->op = ops;
-	as->host = host;
-
-	write_lock_irqsave(&addr_space_lock, flags);
-	list_for_each(entry, &host->addr_space) {
-		u64 a1sa, a1ea;
-		u64 a2sa, a2ea;
-
-		a1 = list_entry(entry, struct hpsb_address_serve, host_list);
-		a2 = list_entry(entry->next, struct hpsb_address_serve,
-				host_list);
-
-		a1sa = a1->start & align_mask;
-		a1ea = (a1->end + alignment -1) & align_mask;
-		a2sa = a2->start & align_mask;
-		a2ea = (a2->end + alignment -1) & align_mask;
-
-		if ((a2sa - a1ea >= size) && (a2sa - start >= size) &&
-		    (a2sa > start)) {
-			as->start = max(start, a1ea);
-			as->end = as->start + size;
-			list_add(&as->host_list, entry);
-			list_add_tail(&as->hl_list, &hl->addr_list);
-			retval = as->start;
-			break;
-		}
-	}
-	write_unlock_irqrestore(&addr_space_lock, flags);
-
-	if (retval == CSR1212_INVALID_ADDR_SPACE)
-		kfree(as);
-	return retval;
-}
-
-/**
- * hpsb_register_addrspace - register a host address space
- *
- * @start and @end are 48 bit pointers and have to be quadlet aligned.
- * @end points to the first address behind the handled addresses.  This
- * function can be called multiple times for a single hpsb_highlevel @hl to
- * implement sparse register sets.  The requested region must not overlap any
- * previously allocated region, otherwise registering will fail.
- *
- * It returns true for successful allocation.  Address spaces can be
- * unregistered with hpsb_unregister_addrspace.  All remaining address spaces
- * are automatically deallocated together with the hpsb_highlevel @hl.
- */
-int hpsb_register_addrspace(struct hpsb_highlevel *hl, struct hpsb_host *host,
-			    const struct hpsb_address_ops *ops,
-			    u64 start, u64 end)
-{
-	struct hpsb_address_serve *as;
-	struct list_head *lh;
-	int retval = 0;
-	unsigned long flags;
-
-	if (((start|end) & 3) || (start >= end) ||
-	    (end > CSR1212_ALL_SPACE_END)) {
-		HPSB_ERR("%s called with invalid addresses", __func__);
-		return 0;
-	}
-
-	as = kmalloc(sizeof(*as), GFP_KERNEL);
-	if (!as)
-		return 0;
-
-	INIT_LIST_HEAD(&as->host_list);
-	INIT_LIST_HEAD(&as->hl_list);
-	as->op = ops;
-	as->start = start;
-	as->end = end;
-	as->host = host;
-
-	write_lock_irqsave(&addr_space_lock, flags);
-	list_for_each(lh, &host->addr_space) {
-		struct hpsb_address_serve *as_this =
-			list_entry(lh, struct hpsb_address_serve, host_list);
-		struct hpsb_address_serve *as_next =
-			list_entry(lh->next, struct hpsb_address_serve,
-				   host_list);
-
-		if (as_this->end > as->start)
-			break;
-
-		if (as_next->start >= as->end) {
-			list_add(&as->host_list, lh);
-			list_add_tail(&as->hl_list, &hl->addr_list);
-			retval = 1;
-			break;
-		}
-	}
-	write_unlock_irqrestore(&addr_space_lock, flags);
-
-	if (retval == 0)
-		kfree(as);
-	return retval;
-}
-
-int hpsb_unregister_addrspace(struct hpsb_highlevel *hl, struct hpsb_host *host,
-			      u64 start)
-{
-	int retval = 0;
-	struct hpsb_address_serve *as;
-	struct list_head *lh, *next;
-	unsigned long flags;
-
-	write_lock_irqsave(&addr_space_lock, flags);
-	list_for_each_safe (lh, next, &hl->addr_list) {
-		as = list_entry(lh, struct hpsb_address_serve, hl_list);
-		if (as->start == start && as->host == host) {
-			__delete_addr(as);
-			retval = 1;
-			break;
-		}
-	}
-	write_unlock_irqrestore(&addr_space_lock, flags);
-	return retval;
-}
-
-static const struct hpsb_address_ops dummy_ops;
-
-/* dummy address spaces as lower and upper bounds of the host's a.s. list */
-static void init_hpsb_highlevel(struct hpsb_host *host)
-{
-	INIT_LIST_HEAD(&host->dummy_zero_addr.host_list);
-	INIT_LIST_HEAD(&host->dummy_zero_addr.hl_list);
-	INIT_LIST_HEAD(&host->dummy_max_addr.host_list);
-	INIT_LIST_HEAD(&host->dummy_max_addr.hl_list);
-
-	host->dummy_zero_addr.op = host->dummy_max_addr.op = &dummy_ops;
-
-	host->dummy_zero_addr.start = host->dummy_zero_addr.end = 0;
-	host->dummy_max_addr.start = host->dummy_max_addr.end = ((u64) 1) << 48;
-
-	list_add_tail(&host->dummy_zero_addr.host_list, &host->addr_space);
-	list_add_tail(&host->dummy_max_addr.host_list, &host->addr_space);
-}
-
-void highlevel_add_host(struct hpsb_host *host)
-{
-	struct hpsb_highlevel *hl;
-
-	init_hpsb_highlevel(host);
-
-	down_read(&hl_drivers_sem);
-	list_for_each_entry(hl, &hl_drivers, hl_list) {
-		if (hl->add_host)
-			hl->add_host(host);
-	}
-	up_read(&hl_drivers_sem);
-	if (host->update_config_rom && hpsb_update_config_rom_image(host) < 0)
-		HPSB_ERR("Failed to generate Configuration ROM image for host "
-			 "%s-%d", hl->name, host->id);
-}
-
-void highlevel_remove_host(struct hpsb_host *host)
-{
-	struct hpsb_highlevel *hl;
-
-	down_read(&hl_drivers_sem);
-	list_for_each_entry(hl, &hl_drivers, hl_list)
-		__unregister_host(hl, host, 0);
-	up_read(&hl_drivers_sem);
-}
-
-void highlevel_host_reset(struct hpsb_host *host)
-{
-	unsigned long flags;
-	struct hpsb_highlevel *hl;
-
-	read_lock_irqsave(&hl_irqs_lock, flags);
-	list_for_each_entry(hl, &hl_irqs, irq_list) {
-		if (hl->host_reset)
-			hl->host_reset(host);
-	}
-	read_unlock_irqrestore(&hl_irqs_lock, flags);
-}
-
-void highlevel_fcp_request(struct hpsb_host *host, int nodeid, int direction,
-			   void *data, size_t length)
-{
-	unsigned long flags;
-	struct hpsb_highlevel *hl;
-	int cts = ((quadlet_t *)data)[0] >> 4;
-
-	read_lock_irqsave(&hl_irqs_lock, flags);
-	list_for_each_entry(hl, &hl_irqs, irq_list) {
-		if (hl->fcp_request)
-			hl->fcp_request(host, nodeid, direction, cts, data,
-					length);
-	}
-	read_unlock_irqrestore(&hl_irqs_lock, flags);
-}
-
-/*
- * highlevel_read, highlevel_write, highlevel_lock, highlevel_lock64:
- *
- * These functions are called to handle transactions. They are called when a
- * packet arrives.  The flags argument contains the second word of the first
- * header quadlet of the incoming packet (containing transaction label, retry
- * code, transaction code and priority).  These functions either return a
- * response code or a negative number.  In the first case a response will be
- * generated.  In the latter case, no response will be sent and the driver which
- * handled the request will send the response itself.
- */
-int highlevel_read(struct hpsb_host *host, int nodeid, void *data, u64 addr,
-		   unsigned int length, u16 flags)
-{
-	struct hpsb_address_serve *as;
-	unsigned int partlength;
-	int rcode = RCODE_ADDRESS_ERROR;
-
-	read_lock(&addr_space_lock);
-	list_for_each_entry(as, &host->addr_space, host_list) {
-		if (as->start > addr)
-			break;
-
-		if (as->end > addr) {
-			partlength = min(as->end - addr, (u64) length);
-
-			if (as->op->read)
-				rcode = as->op->read(host, nodeid, data,
-						     addr, partlength, flags);
-			else
-				rcode = RCODE_TYPE_ERROR;
-
-			data += partlength;
-			length -= partlength;
-			addr += partlength;
-
-			if ((rcode != RCODE_COMPLETE) || !length)
-				break;
-		}
-	}
-	read_unlock(&addr_space_lock);
-
-	if (length && (rcode == RCODE_COMPLETE))
-		rcode = RCODE_ADDRESS_ERROR;
-	return rcode;
-}
-
-int highlevel_write(struct hpsb_host *host, int nodeid, int destid, void *data,
-		    u64 addr, unsigned int length, u16 flags)
-{
-	struct hpsb_address_serve *as;
-	unsigned int partlength;
-	int rcode = RCODE_ADDRESS_ERROR;
-
-	read_lock(&addr_space_lock);
-	list_for_each_entry(as, &host->addr_space, host_list) {
-		if (as->start > addr)
-			break;
-
-		if (as->end > addr) {
-			partlength = min(as->end - addr, (u64) length);
-
-			if (as->op->write)
-				rcode = as->op->write(host, nodeid, destid,
-						      data, addr, partlength,
-						      flags);
-			else
-				rcode = RCODE_TYPE_ERROR;
-
-			data += partlength;
-			length -= partlength;
-			addr += partlength;
-
-			if ((rcode != RCODE_COMPLETE) || !length)
-				break;
-		}
-	}
-	read_unlock(&addr_space_lock);
-
-	if (length && (rcode == RCODE_COMPLETE))
-		rcode = RCODE_ADDRESS_ERROR;
-	return rcode;
-}
-
-int highlevel_lock(struct hpsb_host *host, int nodeid, quadlet_t *store,
-		   u64 addr, quadlet_t data, quadlet_t arg, int ext_tcode,
-		   u16 flags)
-{
-	struct hpsb_address_serve *as;
-	int rcode = RCODE_ADDRESS_ERROR;
-
-	read_lock(&addr_space_lock);
-	list_for_each_entry(as, &host->addr_space, host_list) {
-		if (as->start > addr)
-			break;
-
-		if (as->end > addr) {
-			if (as->op->lock)
-				rcode = as->op->lock(host, nodeid, store, addr,
-						     data, arg, ext_tcode,
-						     flags);
-			else
-				rcode = RCODE_TYPE_ERROR;
-			break;
-		}
-	}
-	read_unlock(&addr_space_lock);
-	return rcode;
-}
-
-int highlevel_lock64(struct hpsb_host *host, int nodeid, octlet_t *store,
-		     u64 addr, octlet_t data, octlet_t arg, int ext_tcode,
-		     u16 flags)
-{
-	struct hpsb_address_serve *as;
-	int rcode = RCODE_ADDRESS_ERROR;
-
-	read_lock(&addr_space_lock);
-
-	list_for_each_entry(as, &host->addr_space, host_list) {
-		if (as->start > addr)
-			break;
-
-		if (as->end > addr) {
-			if (as->op->lock64)
-				rcode = as->op->lock64(host, nodeid, store,
-						       addr, data, arg,
-						       ext_tcode, flags);
-			else
-				rcode = RCODE_TYPE_ERROR;
-			break;
-		}
-	}
-	read_unlock(&addr_space_lock);
-	return rcode;
-}