From: Lin Ming <ming.m.lin@xxxxxxxxx> The existing interface only has a pre-order callback. This change adds an additional parameter for a post-order callback which will be more useful for bus scans. ACPICA BZ 779. Also update the external calls to acpi_walk_namespace. http://www.acpica.org/bugzilla/show_bug.cgi?id=779 Signed-off-by: Lin Ming <ming.m.lin@xxxxxxxxx> Signed-off-by: Bob Moore <robert.moore@xxxxxxxxx> Signed-off-by: Len Brown <len.brown@xxxxxxxxx> --- arch/ia64/sn/kernel/io_acpi_init.c | 2 +- arch/x86/kernel/cpu/cpufreq/longhaul.c | 2 +- drivers/acpi/acpi_memhotplug.c | 4 +- drivers/acpi/acpica/acnamesp.h | 3 +- drivers/acpi/acpica/dsinit.c | 2 +- drivers/acpi/acpica/evgpeblk.c | 8 +- drivers/acpi/acpica/evregion.c | 6 +- drivers/acpi/acpica/nsdump.c | 4 +- drivers/acpi/acpica/nsdumpdv.c | 3 +- drivers/acpi/acpica/nsinit.c | 8 +- drivers/acpi/acpica/nswalk.c | 200 +++++++++++++++++++------------- drivers/acpi/acpica/nsxfeval.c | 32 +++-- drivers/acpi/container.c | 4 +- drivers/acpi/dock.c | 8 +- drivers/acpi/ec.c | 2 +- drivers/acpi/glue.c | 2 +- drivers/acpi/pci_slot.c | 8 +- drivers/acpi/processor_core.c | 4 +- drivers/acpi/scan.c | 2 +- drivers/acpi/video_detect.c | 6 +- drivers/gpu/drm/i915/intel_lvds.c | 2 +- drivers/i2c/busses/i2c-scmi.c | 2 +- drivers/pci/hotplug/acpi_pcihp.c | 2 +- drivers/pci/hotplug/acpiphp_glue.c | 22 ++-- drivers/pci/hotplug/acpiphp_ibm.c | 2 +- drivers/platform/x86/intel_menlow.c | 2 +- drivers/platform/x86/sony-laptop.c | 2 +- drivers/platform/x86/thinkpad_acpi.c | 2 +- include/acpi/acpixf.h | 3 +- 29 files changed, 197 insertions(+), 152 deletions(-) diff --git a/arch/ia64/sn/kernel/io_acpi_init.c b/arch/ia64/sn/kernel/io_acpi_init.c index fd50ff9..66f633b 100644 --- a/arch/ia64/sn/kernel/io_acpi_init.c +++ b/arch/ia64/sn/kernel/io_acpi_init.c @@ -390,7 +390,7 @@ sn_acpi_get_pcidev_info(struct pci_dev *dev, struct pcidev_info **pcidev_info, pcidev_match.handle = NULL; acpi_walk_namespace(ACPI_TYPE_DEVICE, rootbus_handle, ACPI_UINT32_MAX, - find_matching_device, &pcidev_match, NULL); + find_matching_device, NULL, &pcidev_match, NULL); if (!pcidev_match.handle) { printk(KERN_ERR diff --git a/arch/x86/kernel/cpu/cpufreq/longhaul.c b/arch/x86/kernel/cpu/cpufreq/longhaul.c index cabd2fa..7e7eea4 100644 --- a/arch/x86/kernel/cpu/cpufreq/longhaul.c +++ b/arch/x86/kernel/cpu/cpufreq/longhaul.c @@ -885,7 +885,7 @@ static int __init longhaul_cpu_init(struct cpufreq_policy *policy) /* Find ACPI data for processor */ acpi_walk_namespace(ACPI_TYPE_PROCESSOR, ACPI_ROOT_OBJECT, - ACPI_UINT32_MAX, &longhaul_walk_callback, + ACPI_UINT32_MAX, &longhaul_walk_callback, NULL, NULL, (void *)&pr); /* Check ACPI support for C3 state */ diff --git a/drivers/acpi/acpi_memhotplug.c b/drivers/acpi/acpi_memhotplug.c index 28ccdbc..3597d73 100644 --- a/drivers/acpi/acpi_memhotplug.c +++ b/drivers/acpi/acpi_memhotplug.c @@ -537,7 +537,7 @@ static int __init acpi_memory_device_init(void) status = acpi_walk_namespace(ACPI_TYPE_DEVICE, ACPI_ROOT_OBJECT, ACPI_UINT32_MAX, - acpi_memory_register_notify_handler, + acpi_memory_register_notify_handler, NULL, NULL, NULL); if (ACPI_FAILURE(status)) { @@ -561,7 +561,7 @@ static void __exit acpi_memory_device_exit(void) */ status = acpi_walk_namespace(ACPI_TYPE_DEVICE, ACPI_ROOT_OBJECT, ACPI_UINT32_MAX, - acpi_memory_deregister_notify_handler, + acpi_memory_deregister_notify_handler, NULL, NULL, NULL); if (ACPI_FAILURE(status)) diff --git a/drivers/acpi/acpica/acnamesp.h b/drivers/acpi/acpica/acnamesp.h index 09a2764..168e608 100644 --- a/drivers/acpi/acpica/acnamesp.h +++ b/drivers/acpi/acpica/acnamesp.h @@ -104,7 +104,8 @@ acpi_ns_walk_namespace(acpi_object_type type, acpi_handle start_object, u32 max_depth, u32 flags, - acpi_walk_callback user_function, + acpi_walk_callback pre_order_visit, + acpi_walk_callback post_order_visit, void *context, void **return_value); struct acpi_namespace_node *acpi_ns_get_next_node(struct acpi_namespace_node diff --git a/drivers/acpi/acpica/dsinit.c b/drivers/acpi/acpica/dsinit.c index 3aae13f..f23fa0b 100644 --- a/drivers/acpi/acpica/dsinit.c +++ b/drivers/acpi/acpica/dsinit.c @@ -192,7 +192,7 @@ acpi_ds_initialize_objects(u32 table_index, status = acpi_ns_walk_namespace(ACPI_TYPE_ANY, start_node, ACPI_UINT32_MAX, ACPI_NS_WALK_UNLOCK, acpi_ds_init_one_object, - &info, NULL); + NULL, &info, NULL); if (ACPI_FAILURE(status)) { ACPI_EXCEPTION((AE_INFO, status, "During WalkNamespace")); } diff --git a/drivers/acpi/acpica/evgpeblk.c b/drivers/acpi/acpica/evgpeblk.c index a60aaa7..2479209 100644 --- a/drivers/acpi/acpica/evgpeblk.c +++ b/drivers/acpi/acpica/evgpeblk.c @@ -945,8 +945,8 @@ acpi_ev_create_gpe_block(struct acpi_namespace_node *gpe_device, status = acpi_ns_walk_namespace(ACPI_TYPE_METHOD, gpe_device, ACPI_UINT32_MAX, ACPI_NS_WALK_NO_UNLOCK, - acpi_ev_save_method_info, gpe_block, - NULL); + acpi_ev_save_method_info, NULL, + gpe_block, NULL); /* Return the new block */ @@ -1022,8 +1022,8 @@ acpi_ev_initialize_gpe_block(struct acpi_namespace_node *gpe_device, status = acpi_ns_walk_namespace(ACPI_TYPE_DEVICE, ACPI_ROOT_OBJECT, ACPI_UINT32_MAX, ACPI_NS_WALK_UNLOCK, - acpi_ev_match_prw_and_gpe, &gpe_info, - NULL); + acpi_ev_match_prw_and_gpe, NULL, + &gpe_info, NULL); } /* diff --git a/drivers/acpi/acpica/evregion.c b/drivers/acpi/acpica/evregion.c index c9fa040..582b0af 100644 --- a/drivers/acpi/acpica/evregion.c +++ b/drivers/acpi/acpica/evregion.c @@ -1025,8 +1025,8 @@ acpi_ev_install_space_handler(struct acpi_namespace_node * node, */ status = acpi_ns_walk_namespace(ACPI_TYPE_ANY, node, ACPI_UINT32_MAX, ACPI_NS_WALK_UNLOCK, - acpi_ev_install_handler, handler_obj, - NULL); + acpi_ev_install_handler, NULL, + handler_obj, NULL); unlock_and_exit: return_ACPI_STATUS(status); @@ -1062,7 +1062,7 @@ acpi_ev_execute_reg_methods(struct acpi_namespace_node *node, */ status = acpi_ns_walk_namespace(ACPI_TYPE_ANY, node, ACPI_UINT32_MAX, ACPI_NS_WALK_UNLOCK, acpi_ev_reg_run, - &space_id, NULL); + NULL, &space_id, NULL); return_ACPI_STATUS(status); } diff --git a/drivers/acpi/acpica/nsdump.c b/drivers/acpi/acpica/nsdump.c index 2bad613..2deb986 100644 --- a/drivers/acpi/acpica/nsdump.c +++ b/drivers/acpi/acpica/nsdump.c @@ -634,8 +634,8 @@ acpi_ns_dump_objects(acpi_object_type type, (void)acpi_ns_walk_namespace(type, start_handle, max_depth, ACPI_NS_WALK_NO_UNLOCK | ACPI_NS_WALK_TEMP_NODES, - acpi_ns_dump_one_object, (void *)&info, - NULL); + acpi_ns_dump_one_object, NULL, + (void *)&info, NULL); } #endif /* ACPI_FUTURE_USAGE */ diff --git a/drivers/acpi/acpica/nsdumpdv.c b/drivers/acpi/acpica/nsdumpdv.c index 0fe87f1..36be7f0 100644 --- a/drivers/acpi/acpica/nsdumpdv.c +++ b/drivers/acpi/acpica/nsdumpdv.c @@ -131,7 +131,8 @@ void acpi_ns_dump_root_devices(void) status = acpi_ns_walk_namespace(ACPI_TYPE_DEVICE, sys_bus_handle, ACPI_UINT32_MAX, ACPI_NS_WALK_NO_UNLOCK, - acpi_ns_dump_one_device, NULL, NULL); + acpi_ns_dump_one_device, NULL, NULL, + NULL); } #endif diff --git a/drivers/acpi/acpica/nsinit.c b/drivers/acpi/acpica/nsinit.c index 1d5b360..4f8abac 100644 --- a/drivers/acpi/acpica/nsinit.c +++ b/drivers/acpi/acpica/nsinit.c @@ -96,7 +96,7 @@ acpi_status acpi_ns_initialize_objects(void) /* Walk entire namespace from the supplied root */ status = acpi_walk_namespace(ACPI_TYPE_ANY, ACPI_ROOT_OBJECT, - ACPI_UINT32_MAX, acpi_ns_init_one_object, + ACPI_UINT32_MAX, acpi_ns_init_one_object, NULL, &info, NULL); if (ACPI_FAILURE(status)) { ACPI_EXCEPTION((AE_INFO, status, "During WalkNamespace")); @@ -156,7 +156,8 @@ acpi_status acpi_ns_initialize_devices(void) status = acpi_ns_walk_namespace(ACPI_TYPE_ANY, ACPI_ROOT_OBJECT, ACPI_UINT32_MAX, FALSE, - acpi_ns_find_ini_methods, &info, NULL); + acpi_ns_find_ini_methods, NULL, &info, + NULL); if (ACPI_FAILURE(status)) { goto error_exit; } @@ -189,7 +190,8 @@ acpi_status acpi_ns_initialize_devices(void) status = acpi_ns_walk_namespace(ACPI_TYPE_ANY, ACPI_ROOT_OBJECT, ACPI_UINT32_MAX, FALSE, - acpi_ns_init_one_device, &info, NULL); + acpi_ns_init_one_device, NULL, &info, + NULL); ACPI_FREE(info.evaluate_info); if (ACPI_FAILURE(status)) { diff --git a/drivers/acpi/acpica/nswalk.c b/drivers/acpi/acpica/nswalk.c index 35539df..d7e6b52 100644 --- a/drivers/acpi/acpica/nswalk.c +++ b/drivers/acpi/acpica/nswalk.c @@ -165,24 +165,27 @@ struct acpi_namespace_node *acpi_ns_get_next_node_typed(acpi_object_type type, * max_depth - Depth to which search is to reach * Flags - Whether to unlock the NS before invoking * the callback routine - * user_function - Called when an object of "Type" is found - * Context - Passed to user function - * return_value - from the user_function if terminated early. - * Otherwise, returns NULL. + * pre_order_visit - Called during tree pre-order visit + * when an object of "Type" is found + * post_order_visit - Called during tree post-order visit + * when an object of "Type" is found + * Context - Passed to user function(s) above + * return_value - from the user_function if terminated + * early. Otherwise, returns NULL. * RETURNS: Status * * DESCRIPTION: Performs a modified depth-first walk of the namespace tree, * starting (and ending) at the node specified by start_handle. - * The user_function is called whenever a node that matches - * the type parameter is found. If the user function returns + * The callback function is called whenever a node that matches + * the type parameter is found. If the callback function returns * a non-zero value, the search is terminated immediately and * this value is returned to the caller. * * The point of this procedure is to provide a generic namespace * walk routine that can be called from multiple places to - * provide multiple services; the User Function can be tailored - * to each task, whether it is a print function, a compare - * function, etc. + * provide multiple services; the callback function(s) can be + * tailored to each task, whether it is a print function, + * a compare function, etc. * ******************************************************************************/ @@ -191,7 +194,8 @@ acpi_ns_walk_namespace(acpi_object_type type, acpi_handle start_node, u32 max_depth, u32 flags, - acpi_walk_callback user_function, + acpi_walk_callback pre_order_visit, + acpi_walk_callback post_order_visit, void *context, void **return_value) { acpi_status status; @@ -200,6 +204,7 @@ acpi_ns_walk_namespace(acpi_object_type type, struct acpi_namespace_node *parent_node; acpi_object_type child_type; u32 level; + u8 node_previously_visited = FALSE; ACPI_FUNCTION_TRACE(ns_walk_namespace); @@ -212,7 +217,7 @@ acpi_ns_walk_namespace(acpi_object_type type, /* Null child means "get first node" */ parent_node = start_node; - child_node = NULL; + child_node = acpi_ns_get_next_node(parent_node, NULL); child_type = ACPI_TYPE_ANY; level = 1; @@ -221,102 +226,129 @@ acpi_ns_walk_namespace(acpi_object_type type, * started. When Level is zero, the loop is done because we have * bubbled up to (and passed) the original parent handle (start_entry) */ - while (level > 0) { + while (level > 0 && child_node) { + status = AE_OK; - /* Get the next node in this scope. Null if not found */ + /* Found next child, get the type if we are not searching for ANY */ - status = AE_OK; - child_node = acpi_ns_get_next_node(parent_node, child_node); - if (child_node) { + if (type != ACPI_TYPE_ANY) { + child_type = child_node->type; + } - /* Found next child, get the type if we are not searching for ANY */ + /* + * Ignore all temporary namespace nodes (created during control + * method execution) unless told otherwise. These temporary nodes + * can cause a race condition because they can be deleted during + * the execution of the user function (if the namespace is + * unlocked before invocation of the user function.) Only the + * debugger namespace dump will examine the temporary nodes. + */ + if ((child_node->flags & ANOBJ_TEMPORARY) && + !(flags & ACPI_NS_WALK_TEMP_NODES)) { + status = AE_CTRL_DEPTH; + } - if (type != ACPI_TYPE_ANY) { - child_type = child_node->type; - } + /* Type must match requested type */ + else if (child_type == type) { /* - * Ignore all temporary namespace nodes (created during control - * method execution) unless told otherwise. These temporary nodes - * can cause a race condition because they can be deleted during - * the execution of the user function (if the namespace is - * unlocked before invocation of the user function.) Only the - * debugger namespace dump will examine the temporary nodes. + * Found a matching node, invoke the user callback function. + * Unlock the namespace if flag is set. */ - if ((child_node->flags & ANOBJ_TEMPORARY) && - !(flags & ACPI_NS_WALK_TEMP_NODES)) { - status = AE_CTRL_DEPTH; + if (flags & ACPI_NS_WALK_UNLOCK) { + mutex_status = + acpi_ut_release_mutex(ACPI_MTX_NAMESPACE); + if (ACPI_FAILURE(mutex_status)) { + return_ACPI_STATUS(mutex_status); + } } - /* Type must match requested type */ - - else if (child_type == type) { - /* - * Found a matching node, invoke the user callback function. - * Unlock the namespace if flag is set. - */ - if (flags & ACPI_NS_WALK_UNLOCK) { - mutex_status = - acpi_ut_release_mutex - (ACPI_MTX_NAMESPACE); - if (ACPI_FAILURE(mutex_status)) { - return_ACPI_STATUS - (mutex_status); - } + /* + * Invoke the user function, either pre-order or post-order + * or both. + */ + if (!node_previously_visited) { + if (pre_order_visit) { + status = + pre_order_visit(child_node, level, + context, + return_value); } + } else { + if (post_order_visit) { + status = + post_order_visit(child_node, level, + context, + return_value); + } + } - status = - user_function(child_node, level, context, - return_value); - - if (flags & ACPI_NS_WALK_UNLOCK) { - mutex_status = - acpi_ut_acquire_mutex - (ACPI_MTX_NAMESPACE); - if (ACPI_FAILURE(mutex_status)) { - return_ACPI_STATUS - (mutex_status); - } + if (flags & ACPI_NS_WALK_UNLOCK) { + mutex_status = + acpi_ut_acquire_mutex(ACPI_MTX_NAMESPACE); + if (ACPI_FAILURE(mutex_status)) { + return_ACPI_STATUS(mutex_status); } + } - switch (status) { - case AE_OK: - case AE_CTRL_DEPTH: + switch (status) { + case AE_OK: + case AE_CTRL_DEPTH: - /* Just keep going */ - break; + /* Just keep going */ + break; - case AE_CTRL_TERMINATE: + case AE_CTRL_TERMINATE: - /* Exit now, with OK status */ + /* Exit now, with OK status */ - return_ACPI_STATUS(AE_OK); + return_ACPI_STATUS(AE_OK); - default: + default: - /* All others are valid exceptions */ + /* All others are valid exceptions */ - return_ACPI_STATUS(status); - } + return_ACPI_STATUS(status); + } + } + + /* + * Depth first search: Attempt to go down another level in the + * namespace if we are allowed to. Don't go any further if we have + * reached the caller specified maximum depth or if the user + * function has specified that the maximum depth has been reached. + */ + if (!node_previously_visited && + (level < max_depth) && (status != AE_CTRL_DEPTH)) { + if (child_node->child) { + + /* There is at least one child of this node, visit it */ + + level++; + parent_node = child_node; + child_node = + acpi_ns_get_next_node(parent_node, NULL); + continue; } + } - /* - * Depth first search: Attempt to go down another level in the - * namespace if we are allowed to. Don't go any further if we have - * reached the caller specified maximum depth or if the user - * function has specified that the maximum depth has been reached. - */ - if ((level < max_depth) && (status != AE_CTRL_DEPTH)) { - if (child_node->child) { + /* No more children, re-visit this node */ - /* There is at least one child of this node, visit it */ + if (!node_previously_visited) { + node_previously_visited = TRUE; + continue; + } - level++; - parent_node = child_node; - child_node = NULL; - } - } - } else { + /* No more children, visit peers */ + + child_node = acpi_ns_get_next_node(parent_node, child_node); + if (child_node) { + node_previously_visited = FALSE; + } + + /* No peers, re-visit parent */ + + else { /* * No more children of this node (acpi_ns_get_next_node failed), go * back upwards in the namespace tree to the node's parent. @@ -324,6 +356,8 @@ acpi_ns_walk_namespace(acpi_object_type type, level--; child_node = parent_node; parent_node = acpi_ns_get_parent_node(parent_node); + + node_previously_visited = TRUE; } } diff --git a/drivers/acpi/acpica/nsxfeval.c b/drivers/acpi/acpica/nsxfeval.c index 4929dbd..f2bd1da 100644 --- a/drivers/acpi/acpica/nsxfeval.c +++ b/drivers/acpi/acpica/nsxfeval.c @@ -433,8 +433,11 @@ static void acpi_ns_resolve_references(struct acpi_evaluate_info *info) * PARAMETERS: Type - acpi_object_type to search for * start_object - Handle in namespace where search begins * max_depth - Depth to which search is to reach - * user_function - Called when an object of "Type" is found - * Context - Passed to user function + * pre_order_visit - Called during tree pre-order visit + * when an object of "Type" is found + * post_order_visit - Called during tree post-order visit + * when an object of "Type" is found + * Context - Passed to user function(s) above * return_value - Location where return value of * user_function is put if terminated early * @@ -443,16 +446,16 @@ static void acpi_ns_resolve_references(struct acpi_evaluate_info *info) * * DESCRIPTION: Performs a modified depth-first walk of the namespace tree, * starting (and ending) at the object specified by start_handle. - * The user_function is called whenever an object that matches - * the type parameter is found. If the user function returns + * The callback function is called whenever an object that matches + * the type parameter is found. If the callback function returns * a non-zero value, the search is terminated immediately and this * value is returned to the caller. * * The point of this procedure is to provide a generic namespace * walk routine that can be called from multiple places to - * provide multiple services; the User Function can be tailored - * to each task, whether it is a print function, a compare - * function, etc. + * provide multiple services; the callback function(s) can be + * tailored to each task, whether it is a print function, + * a compare function, etc. * ******************************************************************************/ @@ -460,7 +463,8 @@ acpi_status acpi_walk_namespace(acpi_object_type type, acpi_handle start_object, u32 max_depth, - acpi_walk_callback user_function, + acpi_walk_callback pre_order_visit, + acpi_walk_callback post_order_visit, void *context, void **return_value) { acpi_status status; @@ -469,7 +473,8 @@ acpi_walk_namespace(acpi_object_type type, /* Parameter validation */ - if ((type > ACPI_TYPE_LOCAL_MAX) || (!max_depth) || (!user_function)) { + if ((type > ACPI_TYPE_LOCAL_MAX) || + (!max_depth) || (!pre_order_visit && !post_order_visit)) { return_ACPI_STATUS(AE_BAD_PARAMETER); } @@ -501,8 +506,9 @@ acpi_walk_namespace(acpi_object_type type, } status = acpi_ns_walk_namespace(type, start_object, max_depth, - ACPI_NS_WALK_UNLOCK, user_function, - context, return_value); + ACPI_NS_WALK_UNLOCK, pre_order_visit, + post_order_visit, context, + return_value); (void)acpi_ut_release_mutex(ACPI_MTX_NAMESPACE); @@ -681,8 +687,8 @@ acpi_get_devices(const char *HID, status = acpi_ns_walk_namespace(ACPI_TYPE_DEVICE, ACPI_ROOT_OBJECT, ACPI_UINT32_MAX, ACPI_NS_WALK_UNLOCK, - acpi_ns_get_device_callback, &info, - return_value); + acpi_ns_get_device_callback, NULL, + &info, return_value); (void)acpi_ut_release_mutex(ACPI_MTX_NAMESPACE); return_ACPI_STATUS(status); diff --git a/drivers/acpi/container.c b/drivers/acpi/container.c index 642bb30..5faf6c2 100644 --- a/drivers/acpi/container.c +++ b/drivers/acpi/container.c @@ -258,7 +258,7 @@ static int __init acpi_container_init(void) acpi_walk_namespace(ACPI_TYPE_DEVICE, ACPI_ROOT_OBJECT, ACPI_UINT32_MAX, - container_walk_namespace_cb, &action, NULL); + container_walk_namespace_cb, NULL, &action, NULL); return (0); } @@ -271,7 +271,7 @@ static void __exit acpi_container_exit(void) acpi_walk_namespace(ACPI_TYPE_DEVICE, ACPI_ROOT_OBJECT, ACPI_UINT32_MAX, - container_walk_namespace_cb, &action, NULL); + container_walk_namespace_cb, NULL, &action, NULL); acpi_bus_unregister_driver(&acpi_container_driver); diff --git a/drivers/acpi/dock.c b/drivers/acpi/dock.c index 7338b6a..30be3c1 100644 --- a/drivers/acpi/dock.c +++ b/drivers/acpi/dock.c @@ -1030,8 +1030,8 @@ static int dock_add(acpi_handle handle) /* Find dependent devices */ acpi_walk_namespace(ACPI_TYPE_DEVICE, ACPI_ROOT_OBJECT, - ACPI_UINT32_MAX, find_dock_devices, dock_station, - NULL); + ACPI_UINT32_MAX, find_dock_devices, NULL, + dock_station, NULL); /* add the dock station as a device dependent on itself */ dd = alloc_dock_dependent_device(handle); @@ -1127,11 +1127,11 @@ static int __init dock_init(void) /* look for a dock station */ acpi_walk_namespace(ACPI_TYPE_DEVICE, ACPI_ROOT_OBJECT, - ACPI_UINT32_MAX, find_dock, NULL, NULL); + ACPI_UINT32_MAX, find_dock, NULL, NULL, NULL); /* look for bay */ acpi_walk_namespace(ACPI_TYPE_DEVICE, ACPI_ROOT_OBJECT, - ACPI_UINT32_MAX, find_bay, NULL, NULL); + ACPI_UINT32_MAX, find_bay, NULL, NULL, NULL); if (!dock_station_count) { printk(KERN_INFO PREFIX "No dock devices found.\n"); return 0; diff --git a/drivers/acpi/ec.c b/drivers/acpi/ec.c index baef28c..75b147f 100644 --- a/drivers/acpi/ec.c +++ b/drivers/acpi/ec.c @@ -820,7 +820,7 @@ static int acpi_ec_add(struct acpi_device *device) /* Find and register all query methods */ acpi_walk_namespace(ACPI_TYPE_METHOD, ec->handle, 1, - acpi_ec_register_query_methods, ec, NULL); + acpi_ec_register_query_methods, NULL, ec, NULL); if (!first_ec) first_ec = ec; diff --git a/drivers/acpi/glue.c b/drivers/acpi/glue.c index c6645f2..4c8fcff 100644 --- a/drivers/acpi/glue.c +++ b/drivers/acpi/glue.c @@ -113,7 +113,7 @@ acpi_handle acpi_get_child(acpi_handle parent, acpi_integer address) if (!parent) return NULL; acpi_walk_namespace(ACPI_TYPE_DEVICE, parent, - 1, do_acpi_find_child, &find, NULL); + 1, do_acpi_find_child, NULL, &find, NULL); return find.handle; } diff --git a/drivers/acpi/pci_slot.c b/drivers/acpi/pci_slot.c index 45da2ba..11f2197 100644 --- a/drivers/acpi/pci_slot.c +++ b/drivers/acpi/pci_slot.c @@ -219,12 +219,12 @@ walk_p2p_bridge(acpi_handle handle, u32 lvl, void *context, void **rv) dbg("p2p bridge walk, pci_bus = %x\n", dev->subordinate->number); status = acpi_walk_namespace(ACPI_TYPE_DEVICE, handle, (u32)1, - user_function, &child_context, NULL); + user_function, NULL, &child_context, NULL); if (ACPI_FAILURE(status)) goto out; status = acpi_walk_namespace(ACPI_TYPE_DEVICE, handle, (u32)1, - walk_p2p_bridge, &child_context, NULL); + walk_p2p_bridge, NULL, &child_context, NULL); out: pci_dev_put(dev); return AE_OK; @@ -277,12 +277,12 @@ walk_root_bridge(acpi_handle handle, acpi_walk_callback user_function) dbg("root bridge walk, pci_bus = %x\n", pci_bus->number); status = acpi_walk_namespace(ACPI_TYPE_DEVICE, handle, (u32)1, - user_function, &context, NULL); + user_function, NULL, &context, NULL); if (ACPI_FAILURE(status)) return status; status = acpi_walk_namespace(ACPI_TYPE_DEVICE, handle, (u32)1, - walk_p2p_bridge, &context, NULL); + walk_p2p_bridge, NULL, &context, NULL); if (ACPI_FAILURE(status)) err("%s: walk_p2p_bridge failure - %d\n", __func__, status); diff --git a/drivers/acpi/processor_core.c b/drivers/acpi/processor_core.c index ec742a4..cb4283f 100644 --- a/drivers/acpi/processor_core.c +++ b/drivers/acpi/processor_core.c @@ -1102,7 +1102,7 @@ void acpi_processor_install_hotplug_notify(void) acpi_walk_namespace(ACPI_TYPE_PROCESSOR, ACPI_ROOT_OBJECT, ACPI_UINT32_MAX, - processor_walk_namespace_cb, &action, NULL); + processor_walk_namespace_cb, NULL, &action, NULL); #endif register_hotcpu_notifier(&acpi_cpu_notifier); } @@ -1115,7 +1115,7 @@ void acpi_processor_uninstall_hotplug_notify(void) acpi_walk_namespace(ACPI_TYPE_PROCESSOR, ACPI_ROOT_OBJECT, ACPI_UINT32_MAX, - processor_walk_namespace_cb, &action, NULL); + processor_walk_namespace_cb, NULL, &action, NULL); #endif unregister_hotcpu_notifier(&acpi_cpu_notifier); } diff --git a/drivers/acpi/scan.c b/drivers/acpi/scan.c index 14a7481..ff9f622 100644 --- a/drivers/acpi/scan.c +++ b/drivers/acpi/scan.c @@ -1332,7 +1332,7 @@ static int acpi_bus_scan(acpi_handle handle, struct acpi_bus_ops *ops, status = acpi_bus_check_add(handle, 0, ops, &device); if (ACPI_SUCCESS(status)) acpi_walk_namespace(ACPI_TYPE_ANY, handle, ACPI_UINT32_MAX, - acpi_bus_check_add, ops, &device); + acpi_bus_check_add, NULL, ops, &device); if (child) *child = device; diff --git a/drivers/acpi/video_detect.c b/drivers/acpi/video_detect.c index 575593a..8c1b431 100644 --- a/drivers/acpi/video_detect.c +++ b/drivers/acpi/video_detect.c @@ -101,7 +101,7 @@ long acpi_is_video_device(struct acpi_device *device) /* Only check for backlight functionality if one of the above hit. */ if (video_caps) acpi_walk_namespace(ACPI_TYPE_DEVICE, device->handle, - ACPI_UINT32_MAX, acpi_backlight_cap_match, + ACPI_UINT32_MAX, acpi_backlight_cap_match, NULL, &video_caps, NULL); return video_caps; @@ -151,7 +151,7 @@ long acpi_video_get_capabilities(acpi_handle graphics_handle) if (!graphics_handle) { /* Only do the global walk through all graphics devices once */ acpi_walk_namespace(ACPI_TYPE_DEVICE, ACPI_ROOT_OBJECT, - ACPI_UINT32_MAX, find_video, + ACPI_UINT32_MAX, find_video, NULL, &caps, NULL); /* There might be boot param flags set already... */ acpi_video_support |= caps; @@ -173,7 +173,7 @@ long acpi_video_get_capabilities(acpi_handle graphics_handle) return 0; } acpi_walk_namespace(ACPI_TYPE_DEVICE, graphics_handle, - ACPI_UINT32_MAX, find_video, + ACPI_UINT32_MAX, find_video, NULL, &caps, NULL); } ACPI_DEBUG_PRINT((ACPI_DB_INFO, "We have 0x%lX video support %s %s\n", diff --git a/drivers/gpu/drm/i915/intel_lvds.c b/drivers/gpu/drm/i915/intel_lvds.c index 05598ae..eb36502 100644 --- a/drivers/gpu/drm/i915/intel_lvds.c +++ b/drivers/gpu/drm/i915/intel_lvds.c @@ -899,7 +899,7 @@ static int intel_lid_present(void) acpi_walk_namespace(ACPI_TYPE_DEVICE, ACPI_ROOT_OBJECT, ACPI_UINT32_MAX, - check_lid_device, &lid_present, NULL); + check_lid_device, NULL, &lid_present, NULL); return lid_present; } diff --git a/drivers/i2c/busses/i2c-scmi.c b/drivers/i2c/busses/i2c-scmi.c index b4a55d4..365e0be 100644 --- a/drivers/i2c/busses/i2c-scmi.c +++ b/drivers/i2c/busses/i2c-scmi.c @@ -363,7 +363,7 @@ static int acpi_smbus_cmi_add(struct acpi_device *device) smbus_cmi->cap_write = 0; acpi_walk_namespace(ACPI_TYPE_METHOD, smbus_cmi->handle, 1, - acpi_smbus_cmi_query_methods, smbus_cmi, NULL); + acpi_smbus_cmi_query_methods, NULL, smbus_cmi, NULL); if (smbus_cmi->cap_info == 0) goto err; diff --git a/drivers/pci/hotplug/acpi_pcihp.c b/drivers/pci/hotplug/acpi_pcihp.c index a73028e..0f32571 100644 --- a/drivers/pci/hotplug/acpi_pcihp.c +++ b/drivers/pci/hotplug/acpi_pcihp.c @@ -471,7 +471,7 @@ int acpi_pci_detect_ejectable(acpi_handle handle) return found; acpi_walk_namespace(ACPI_TYPE_DEVICE, handle, 1, - check_hotplug, (void *)&found, NULL); + check_hotplug, NULL, (void *)&found, NULL); return found; } EXPORT_SYMBOL_GPL(acpi_pci_detect_ejectable); diff --git a/drivers/pci/hotplug/acpiphp_glue.c b/drivers/pci/hotplug/acpiphp_glue.c index 58d25a1..df1b0ea 100644 --- a/drivers/pci/hotplug/acpiphp_glue.c +++ b/drivers/pci/hotplug/acpiphp_glue.c @@ -266,7 +266,7 @@ static int detect_ejectable_slots(acpi_handle handle) int found = acpi_pci_detect_ejectable(handle); if (!found) { acpi_walk_namespace(ACPI_TYPE_DEVICE, handle, (u32)1, - is_pci_dock_device, (void *)&found, NULL); + is_pci_dock_device, NULL, (void *)&found, NULL); } return found; } @@ -281,7 +281,7 @@ static void init_bridge_misc(struct acpiphp_bridge *bridge) /* register all slot objects under this bridge */ status = acpi_walk_namespace(ACPI_TYPE_DEVICE, bridge->handle, (u32)1, - register_slot, bridge, NULL); + register_slot, NULL, bridge, NULL); if (ACPI_FAILURE(status)) { list_del(&bridge->list); return; @@ -447,7 +447,7 @@ find_p2p_bridge(acpi_handle handle, u32 lvl, void *context, void **rv) /* search P2P bridges under this p2p bridge */ status = acpi_walk_namespace(ACPI_TYPE_DEVICE, handle, (u32)1, - find_p2p_bridge, NULL, NULL); + find_p2p_bridge, NULL, NULL, NULL); if (ACPI_FAILURE(status)) warn("find_p2p_bridge failed (error code = 0x%x)\n", status); @@ -485,7 +485,7 @@ static int add_bridge(acpi_handle handle) /* search P2P bridges under this host bridge */ status = acpi_walk_namespace(ACPI_TYPE_DEVICE, handle, (u32)1, - find_p2p_bridge, NULL, NULL); + find_p2p_bridge, NULL, NULL, NULL); if (ACPI_FAILURE(status)) warn("find_p2p_bridge failed (error code = 0x%x)\n", status); @@ -573,7 +573,7 @@ cleanup_p2p_bridge(acpi_handle handle, u32 lvl, void *context, void **rv) /* cleanup p2p bridges under this P2P bridge in a depth-first manner */ acpi_walk_namespace(ACPI_TYPE_DEVICE, handle, (u32)1, - cleanup_p2p_bridge, NULL, NULL); + cleanup_p2p_bridge, NULL, NULL, NULL); bridge = acpiphp_handle_to_bridge(handle); if (bridge) @@ -589,7 +589,7 @@ static void remove_bridge(acpi_handle handle) /* cleanup p2p bridges under this host bridge in a depth-first manner */ acpi_walk_namespace(ACPI_TYPE_DEVICE, handle, - (u32)1, cleanup_p2p_bridge, NULL, NULL); + (u32)1, cleanup_p2p_bridge, NULL, NULL, NULL); /* * On root bridges with hotplug slots directly underneath (ie, @@ -778,7 +778,7 @@ static int acpiphp_configure_ioapics(acpi_handle handle) { ioapic_add(handle, 0, NULL, NULL); acpi_walk_namespace(ACPI_TYPE_DEVICE, handle, - ACPI_UINT32_MAX, ioapic_add, NULL, NULL); + ACPI_UINT32_MAX, ioapic_add, NULL, NULL, NULL); return 0; } @@ -786,7 +786,7 @@ static int acpiphp_unconfigure_ioapics(acpi_handle handle) { ioapic_remove(handle, 0, NULL, NULL); acpi_walk_namespace(ACPI_TYPE_DEVICE, handle, - ACPI_UINT32_MAX, ioapic_remove, NULL, NULL); + ACPI_UINT32_MAX, ioapic_remove, NULL, NULL, NULL); return 0; } @@ -1367,7 +1367,7 @@ static void handle_hotplug_event_bridge(acpi_handle handle, u32 type, void *cont bridge = acpiphp_handle_to_bridge(handle); if (type == ACPI_NOTIFY_BUS_CHECK) { acpi_walk_namespace(ACPI_TYPE_DEVICE, handle, ACPI_UINT32_MAX, - count_sub_bridges, &num_sub_bridges, NULL); + count_sub_bridges, NULL, &num_sub_bridges, NULL); } if (!bridge && !num_sub_bridges) { @@ -1388,7 +1388,7 @@ static void handle_hotplug_event_bridge(acpi_handle handle, u32 type, void *cont } if (num_sub_bridges) acpi_walk_namespace(ACPI_TYPE_DEVICE, handle, - ACPI_UINT32_MAX, check_sub_bridges, NULL, NULL); + ACPI_UINT32_MAX, check_sub_bridges, NULL, NULL, NULL); break; case ACPI_NOTIFY_DEVICE_CHECK: @@ -1512,7 +1512,7 @@ int __init acpiphp_glue_init(void) int num = 0; acpi_walk_namespace(ACPI_TYPE_DEVICE, ACPI_ROOT_OBJECT, - ACPI_UINT32_MAX, find_root_bridges, &num, NULL); + ACPI_UINT32_MAX, find_root_bridges, NULL, &num, NULL); if (num <= 0) return -1; diff --git a/drivers/pci/hotplug/acpiphp_ibm.c b/drivers/pci/hotplug/acpiphp_ibm.c index e7be66d..aa5df48 100644 --- a/drivers/pci/hotplug/acpiphp_ibm.c +++ b/drivers/pci/hotplug/acpiphp_ibm.c @@ -434,7 +434,7 @@ static int __init ibm_acpiphp_init(void) dbg("%s\n", __func__); if (acpi_walk_namespace(ACPI_TYPE_DEVICE, ACPI_ROOT_OBJECT, - ACPI_UINT32_MAX, ibm_find_acpi_device, + ACPI_UINT32_MAX, ibm_find_acpi_device, NULL, &ibm_acpi_handle, NULL) != FOUND_APCI) { err("%s: acpi_walk_namespace failed\n", __func__); retval = -ENODEV; diff --git a/drivers/platform/x86/intel_menlow.c b/drivers/platform/x86/intel_menlow.c index 29432a5..f0a90a6 100644 --- a/drivers/platform/x86/intel_menlow.c +++ b/drivers/platform/x86/intel_menlow.c @@ -510,7 +510,7 @@ static int __init intel_menlow_module_init(void) /* Looking for sensors in each ACPI thermal zone */ status = acpi_walk_namespace(ACPI_TYPE_THERMAL, ACPI_ROOT_OBJECT, ACPI_UINT32_MAX, - intel_menlow_register_sensor, NULL, NULL); + intel_menlow_register_sensor, NULL, NULL, NULL); if (ACPI_FAILURE(status)) return -ENODEV; diff --git a/drivers/platform/x86/sony-laptop.c b/drivers/platform/x86/sony-laptop.c index a2a742c..7a2cc8a 100644 --- a/drivers/platform/x86/sony-laptop.c +++ b/drivers/platform/x86/sony-laptop.c @@ -1203,7 +1203,7 @@ static int sony_nc_add(struct acpi_device *device) if (debug) { status = acpi_walk_namespace(ACPI_TYPE_METHOD, sony_nc_acpi_handle, - 1, sony_walk_callback, NULL, NULL); + 1, sony_walk_callback, NULL, NULL, NULL); if (ACPI_FAILURE(status)) { printk(KERN_WARNING DRV_PFX "unable to walk acpi resources\n"); result = -ENODEV; diff --git a/drivers/platform/x86/thinkpad_acpi.c b/drivers/platform/x86/thinkpad_acpi.c index d93108d..22cb50f 100644 --- a/drivers/platform/x86/thinkpad_acpi.c +++ b/drivers/platform/x86/thinkpad_acpi.c @@ -1087,7 +1087,7 @@ static int __init tpacpi_check_std_acpi_brightness_support(void) */ status = acpi_walk_namespace(ACPI_TYPE_METHOD, vid_handle, 3, - tpacpi_acpi_walk_find_bcl, NULL, + tpacpi_acpi_walk_find_bcl, NULL, NULL, &bcl_ptr); if (ACPI_SUCCESS(status) && bcl_levels > 2) { diff --git a/include/acpi/acpixf.h b/include/acpi/acpixf.h index 0e7efea..f9b8b28 100644 --- a/include/acpi/acpixf.h +++ b/include/acpi/acpixf.h @@ -154,7 +154,8 @@ acpi_status acpi_walk_namespace(acpi_object_type type, acpi_handle start_object, u32 max_depth, - acpi_walk_callback user_function, + acpi_walk_callback pre_order_visit, + acpi_walk_callback post_order_visit, void *context, void **return_value); acpi_status -- 1.6.0.6 -- To unsubscribe from this list: send the line "unsubscribe linux-acpi" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
