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authorLinus Torvalds <torvalds@linux-foundation.org>2015-11-13 20:04:17 -0800
committerLinus Torvalds <torvalds@linux-foundation.org>2015-11-13 20:04:17 -0800
commit9aa3d651a9199103eb6451aeb0ac1b66a6d770a6 (patch)
tree42cc631c54e1fcbdeedee8e955c4797634a91af7 /include/target
parent5d2eb548b309be34ecf3b91f0b7300a2b9d09b8c (diff)
parent517982229f78b2aebf00a8a337e84e8eeea70b8e (diff)
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Merge branch 'for-next' of git://git.kernel.org/pub/scm/linux/kernel/git/nab/target-pending
Pull SCSI target updates from Nicholas Bellinger: "This series contains HCH's changes to absorb configfs attribute ->show() + ->store() function pointer usage from it's original tree-wide consumers, into common configfs code. It includes usb-gadget, target w/ drivers, netconsole and ocfs2 changes to realize the improved simplicity, that now renders the original include/target/configfs_macros.h CPP magic for fabric drivers and others, unnecessary and obsolete. And with common code in place, new configfs attributes can be added easier than ever before. Note, there are further improvements in-flight from other folks for v4.5 code in configfs land, plus number of target fixes for post -rc1 code" In the meantime, a new user of the now-removed old configfs API came in through the char/misc tree in commit 7bd1d4093c2f ("stm class: Introduce an abstraction for System Trace Module devices"). This merge resolution comes from Alexander Shishkin, who updated his stm class tracing abstraction to account for the removal of the old show_attribute and store_attribute methods in commit 517982229f78 ("configfs: remove old API") from this pull. As Alexander says about that patch: "There's no need to keep an extra wrapper structure per item and the awkward show_attribute/store_attribute item ops are no longer needed. This patch converts policy code to the new api, all the while making the code quite a bit smaller and easier on the eyes. Signed-off-by: Alexander Shishkin <alexander.shishkin@linux.intel.com>" That patch was folded into the merge so that the tree should be fully bisectable. * 'for-next' of git://git.kernel.org/pub/scm/linux/kernel/git/nab/target-pending: (23 commits) configfs: remove old API ocfs2/cluster: use per-attribute show and store methods ocfs2/cluster: move locking into attribute store methods netconsole: use per-attribute show and store methods target: use per-attribute show and store methods spear13xx_pcie_gadget: use per-attribute show and store methods dlm: use per-attribute show and store methods usb-gadget/f_serial: use per-attribute show and store methods usb-gadget/f_phonet: use per-attribute show and store methods usb-gadget/f_obex: use per-attribute show and store methods usb-gadget/f_uac2: use per-attribute show and store methods usb-gadget/f_uac1: use per-attribute show and store methods usb-gadget/f_mass_storage: use per-attribute show and store methods usb-gadget/f_sourcesink: use per-attribute show and store methods usb-gadget/f_printer: use per-attribute show and store methods usb-gadget/f_midi: use per-attribute show and store methods usb-gadget/f_loopback: use per-attribute show and store methods usb-gadget/ether: use per-attribute show and store methods usb-gadget/f_acm: use per-attribute show and store methods usb-gadget/f_hid: use per-attribute show and store methods ...
Diffstat (limited to 'include/target')
-rw-r--r--include/target/configfs_macros.h147
-rw-r--r--include/target/target_core_base.h60
-rw-r--r--include/target/target_core_fabric_configfs.h122
3 files changed, 60 insertions, 269 deletions
diff --git a/include/target/configfs_macros.h b/include/target/configfs_macros.h
deleted file mode 100644
index a0fc85bbe2da..000000000000
--- a/include/target/configfs_macros.h
+++ /dev/null
@@ -1,147 +0,0 @@
-/* -*- mode: c; c-basic-offset: 8; -*-
- * vim: noexpandtab sw=8 ts=8 sts=0:
- *
- * configfs_macros.h - extends macros for configfs
- *
- * This program is free software; you can redistribute it and/or
- * modify it under the terms of the GNU General Public
- * License as published by the Free Software Foundation; either
- * version 2 of the License, or (at your option) any later version.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
- * General Public License for more details.
- *
- * You should have received a copy of the GNU General Public
- * License along with this program; if not, write to the
- * Free Software Foundation, Inc., 59 Temple Place - Suite 330,
- * Boston, MA 021110-1307, USA.
- *
- * Based on sysfs:
- * sysfs is Copyright (C) 2001, 2002, 2003 Patrick Mochel
- *
- * Based on kobject.h:
- * Copyright (c) 2002-2003 Patrick Mochel
- * Copyright (c) 2002-2003 Open Source Development Labs
- *
- * configfs Copyright (C) 2005 Oracle. All rights reserved.
- *
- * Added CONFIGFS_EATTR() macros from original configfs.h macros
- * Copright (C) 2008-2009 Nicholas A. Bellinger <nab@linux-iscsi.org>
- *
- * Please read Documentation/filesystems/configfs/configfs.txt before using
- * the configfs interface, ESPECIALLY the parts about reference counts and
- * item destructors.
- */
-
-#ifndef _CONFIGFS_MACROS_H_
-#define _CONFIGFS_MACROS_H_
-
-#include <linux/configfs.h>
-
-/*
- * Users often need to create attribute structures for their configurable
- * attributes, containing a configfs_attribute member and function pointers
- * for the show() and store() operations on that attribute. If they don't
- * need anything else on the extended attribute structure, they can use
- * this macro to define it. The argument _name isends up as
- * 'struct _name_attribute, as well as names of to CONFIGFS_ATTR_OPS() below.
- * The argument _item is the name of the structure containing the
- * struct config_item or struct config_group structure members
- */
-#define CONFIGFS_EATTR_STRUCT(_name, _item) \
-struct _name##_attribute { \
- struct configfs_attribute attr; \
- ssize_t (*show)(struct _item *, char *); \
- ssize_t (*store)(struct _item *, const char *, size_t); \
-}
-
-/*
- * With the extended attribute structure, users can use this macro
- * (similar to sysfs' __ATTR) to make defining attributes easier.
- * An example:
- * #define MYITEM_EATTR(_name, _mode, _show, _store) \
- * struct myitem_attribute childless_attr_##_name = \
- * __CONFIGFS_EATTR(_name, _mode, _show, _store)
- */
-#define __CONFIGFS_EATTR(_name, _mode, _show, _store) \
-{ \
- .attr = { \
- .ca_name = __stringify(_name), \
- .ca_mode = _mode, \
- .ca_owner = THIS_MODULE, \
- }, \
- .show = _show, \
- .store = _store, \
-}
-/* Here is a readonly version, only requiring a show() operation */
-#define __CONFIGFS_EATTR_RO(_name, _show) \
-{ \
- .attr = { \
- .ca_name = __stringify(_name), \
- .ca_mode = 0444, \
- .ca_owner = THIS_MODULE, \
- }, \
- .show = _show, \
-}
-
-/*
- * With these extended attributes, the simple show_attribute() and
- * store_attribute() operations need to call the show() and store() of the
- * attributes. This is a common pattern, so we provide a macro to define
- * them. The argument _name is the name of the attribute defined by
- * CONFIGFS_ATTR_STRUCT(). The argument _item is the name of the structure
- * containing the struct config_item or struct config_group structure member.
- * The argument _item_member is the actual name of the struct config_* struct
- * in your _item structure. Meaning my_structure->some_config_group.
- * ^^_item^^^^^ ^^_item_member^^^
- * This macro expects the attributes to be named "struct <name>_attribute".
- */
-#define CONFIGFS_EATTR_OPS_TO_FUNC(_name, _item, _item_member) \
-static struct _item *to_##_name(struct config_item *ci) \
-{ \
- return (ci) ? container_of(to_config_group(ci), struct _item, \
- _item_member) : NULL; \
-}
-
-#define CONFIGFS_EATTR_OPS_SHOW(_name, _item) \
-static ssize_t _name##_attr_show(struct config_item *item, \
- struct configfs_attribute *attr, \
- char *page) \
-{ \
- struct _item *_item = to_##_name(item); \
- struct _name##_attribute * _name##_attr = \
- container_of(attr, struct _name##_attribute, attr); \
- ssize_t ret = 0; \
- \
- if (_name##_attr->show) \
- ret = _name##_attr->show(_item, page); \
- return ret; \
-}
-
-#define CONFIGFS_EATTR_OPS_STORE(_name, _item) \
-static ssize_t _name##_attr_store(struct config_item *item, \
- struct configfs_attribute *attr, \
- const char *page, size_t count) \
-{ \
- struct _item *_item = to_##_name(item); \
- struct _name##_attribute * _name##_attr = \
- container_of(attr, struct _name##_attribute, attr); \
- ssize_t ret = -EINVAL; \
- \
- if (_name##_attr->store) \
- ret = _name##_attr->store(_item, page, count); \
- return ret; \
-}
-
-#define CONFIGFS_EATTR_OPS(_name, _item, _item_member) \
- CONFIGFS_EATTR_OPS_TO_FUNC(_name, _item, _item_member); \
- CONFIGFS_EATTR_OPS_SHOW(_name, _item); \
- CONFIGFS_EATTR_OPS_STORE(_name, _item);
-
-#define CONFIGFS_EATTR_OPS_RO(_name, _item, _item_member) \
- CONFIGFS_EATTR_OPS_TO_FUNC(_name, _item, _item_member); \
- CONFIGFS_EATTR_OPS_SHOW(_name, _item);
-
-#endif /* _CONFIGFS_MACROS_H_ */
diff --git a/include/target/target_core_base.h b/include/target/target_core_base.h
index 5f48754dc36a..0a2c74008e53 100644
--- a/include/target/target_core_base.h
+++ b/include/target/target_core_base.h
@@ -563,6 +563,36 @@ struct se_node_acl {
struct kref acl_kref;
};
+static inline struct se_node_acl *acl_to_nacl(struct config_item *item)
+{
+ return container_of(to_config_group(item), struct se_node_acl,
+ acl_group);
+}
+
+static inline struct se_node_acl *attrib_to_nacl(struct config_item *item)
+{
+ return container_of(to_config_group(item), struct se_node_acl,
+ acl_attrib_group);
+}
+
+static inline struct se_node_acl *auth_to_nacl(struct config_item *item)
+{
+ return container_of(to_config_group(item), struct se_node_acl,
+ acl_auth_group);
+}
+
+static inline struct se_node_acl *param_to_nacl(struct config_item *item)
+{
+ return container_of(to_config_group(item), struct se_node_acl,
+ acl_param_group);
+}
+
+static inline struct se_node_acl *fabric_stat_to_nacl(struct config_item *item)
+{
+ return container_of(to_config_group(item), struct se_node_acl,
+ acl_fabric_stat_group);
+}
+
struct se_session {
unsigned sess_tearing_down:1;
u64 sess_bin_isid;
@@ -821,6 +851,12 @@ struct se_tpg_np {
struct config_group tpg_np_group;
};
+static inline struct se_tpg_np *to_tpg_np(struct config_item *item)
+{
+ return container_of(to_config_group(item), struct se_tpg_np,
+ tpg_np_group);
+}
+
struct se_portal_group {
/*
* PROTOCOL IDENTIFIER value per SPC4, 7.5.1.
@@ -857,6 +893,30 @@ struct se_portal_group {
struct config_group tpg_param_group;
};
+static inline struct se_portal_group *to_tpg(struct config_item *item)
+{
+ return container_of(to_config_group(item), struct se_portal_group,
+ tpg_group);
+}
+
+static inline struct se_portal_group *attrib_to_tpg(struct config_item *item)
+{
+ return container_of(to_config_group(item), struct se_portal_group,
+ tpg_attrib_group);
+}
+
+static inline struct se_portal_group *auth_to_tpg(struct config_item *item)
+{
+ return container_of(to_config_group(item), struct se_portal_group,
+ tpg_auth_group);
+}
+
+static inline struct se_portal_group *param_to_tpg(struct config_item *item)
+{
+ return container_of(to_config_group(item), struct se_portal_group,
+ tpg_param_group);
+}
+
struct se_wwn {
struct target_fabric_configfs *wwn_tf;
struct config_group wwn_group;
diff --git a/include/target/target_core_fabric_configfs.h b/include/target/target_core_fabric_configfs.h
deleted file mode 100644
index 7a0649c09e79..000000000000
--- a/include/target/target_core_fabric_configfs.h
+++ /dev/null
@@ -1,122 +0,0 @@
-/*
- * Used for tfc_wwn_cit attributes
- */
-
-#include <target/configfs_macros.h>
-
-CONFIGFS_EATTR_STRUCT(target_fabric_nacl_attrib, se_node_acl);
-#define TF_NACL_ATTRIB_ATTR(_fabric, _name, _mode) \
-static struct target_fabric_nacl_attrib_attribute _fabric##_nacl_attrib_##_name = \
- __CONFIGFS_EATTR(_name, _mode, \
- _fabric##_nacl_attrib_show_##_name, \
- _fabric##_nacl_attrib_store_##_name);
-
-CONFIGFS_EATTR_STRUCT(target_fabric_nacl_auth, se_node_acl);
-#define TF_NACL_AUTH_ATTR(_fabric, _name, _mode) \
-static struct target_fabric_nacl_auth_attribute _fabric##_nacl_auth_##_name = \
- __CONFIGFS_EATTR(_name, _mode, \
- _fabric##_nacl_auth_show_##_name, \
- _fabric##_nacl_auth_store_##_name);
-
-#define TF_NACL_AUTH_ATTR_RO(_fabric, _name) \
-static struct target_fabric_nacl_auth_attribute _fabric##_nacl_auth_##_name = \
- __CONFIGFS_EATTR_RO(_name, \
- _fabric##_nacl_auth_show_##_name);
-
-CONFIGFS_EATTR_STRUCT(target_fabric_nacl_param, se_node_acl);
-#define TF_NACL_PARAM_ATTR(_fabric, _name, _mode) \
-static struct target_fabric_nacl_param_attribute _fabric##_nacl_param_##_name = \
- __CONFIGFS_EATTR(_name, _mode, \
- _fabric##_nacl_param_show_##_name, \
- _fabric##_nacl_param_store_##_name);
-
-#define TF_NACL_PARAM_ATTR_RO(_fabric, _name) \
-static struct target_fabric_nacl_param_attribute _fabric##_nacl_param_##_name = \
- __CONFIGFS_EATTR_RO(_name, \
- _fabric##_nacl_param_show_##_name);
-
-
-CONFIGFS_EATTR_STRUCT(target_fabric_nacl_base, se_node_acl);
-#define TF_NACL_BASE_ATTR(_fabric, _name, _mode) \
-static struct target_fabric_nacl_base_attribute _fabric##_nacl_##_name = \
- __CONFIGFS_EATTR(_name, _mode, \
- _fabric##_nacl_show_##_name, \
- _fabric##_nacl_store_##_name);
-
-#define TF_NACL_BASE_ATTR_RO(_fabric, _name) \
-static struct target_fabric_nacl_base_attribute _fabric##_nacl_##_name = \
- __CONFIGFS_EATTR_RO(_name, \
- _fabric##_nacl_show_##_name);
-
-CONFIGFS_EATTR_STRUCT(target_fabric_np_base, se_tpg_np);
-#define TF_NP_BASE_ATTR(_fabric, _name, _mode) \
-static struct target_fabric_np_base_attribute _fabric##_np_##_name = \
- __CONFIGFS_EATTR(_name, _mode, \
- _fabric##_np_show_##_name, \
- _fabric##_np_store_##_name);
-
-CONFIGFS_EATTR_STRUCT(target_fabric_tpg_attrib, se_portal_group);
-#define TF_TPG_ATTRIB_ATTR(_fabric, _name, _mode) \
-static struct target_fabric_tpg_attrib_attribute _fabric##_tpg_attrib_##_name = \
- __CONFIGFS_EATTR(_name, _mode, \
- _fabric##_tpg_attrib_show_##_name, \
- _fabric##_tpg_attrib_store_##_name);
-
-CONFIGFS_EATTR_STRUCT(target_fabric_tpg_auth, se_portal_group);
-#define TF_TPG_AUTH_ATTR(_fabric, _name, _mode) \
-static struct target_fabric_tpg_auth_attribute _fabric##_tpg_auth_##_name = \
- __CONFIGFS_EATTR(_name, _mode, \
- _fabric##_tpg_auth_show_##_name, \
- _fabric##_tpg_auth_store_##_name);
-
-#define TF_TPG_AUTH_ATTR_RO(_fabric, _name) \
-static struct target_fabric_tpg_auth_attribute _fabric##_tpg_auth_##_name = \
- __CONFIGFS_EATTR_RO(_name, \
- _fabric##_tpg_auth_show_##_name);
-
-CONFIGFS_EATTR_STRUCT(target_fabric_tpg_param, se_portal_group);
-#define TF_TPG_PARAM_ATTR(_fabric, _name, _mode) \
-static struct target_fabric_tpg_param_attribute _fabric##_tpg_param_##_name = \
- __CONFIGFS_EATTR(_name, _mode, \
- _fabric##_tpg_param_show_##_name, \
- _fabric##_tpg_param_store_##_name);
-
-
-CONFIGFS_EATTR_STRUCT(target_fabric_tpg, se_portal_group);
-#define TF_TPG_BASE_ATTR(_fabric, _name, _mode) \
-static struct target_fabric_tpg_attribute _fabric##_tpg_##_name = \
- __CONFIGFS_EATTR(_name, _mode, \
- _fabric##_tpg_show_##_name, \
- _fabric##_tpg_store_##_name);
-
-
-#define TF_TPG_BASE_ATTR_RO(_fabric, _name) \
-static struct target_fabric_tpg_attribute _fabric##_tpg_##_name = \
- __CONFIGFS_EATTR_RO(_name, \
- _fabric##_tpg_show_##_name);
-
-CONFIGFS_EATTR_STRUCT(target_fabric_wwn, target_fabric_configfs);
-#define TF_WWN_ATTR(_fabric, _name, _mode) \
-static struct target_fabric_wwn_attribute _fabric##_wwn_##_name = \
- __CONFIGFS_EATTR(_name, _mode, \
- _fabric##_wwn_show_attr_##_name, \
- _fabric##_wwn_store_attr_##_name);
-
-#define TF_WWN_ATTR_RO(_fabric, _name) \
-static struct target_fabric_wwn_attribute _fabric##_wwn_##_name = \
- __CONFIGFS_EATTR_RO(_name, \
- _fabric##_wwn_show_attr_##_name);
-
-CONFIGFS_EATTR_STRUCT(target_fabric_discovery, target_fabric_configfs);
-#define TF_DISC_ATTR(_fabric, _name, _mode) \
-static struct target_fabric_discovery_attribute _fabric##_disc_##_name = \
- __CONFIGFS_EATTR(_name, _mode, \
- _fabric##_disc_show_##_name, \
- _fabric##_disc_store_##_name);
-
-#define TF_DISC_ATTR_RO(_fabric, _name) \
-static struct target_fabric_discovery_attribute _fabric##_disc_##_name = \
- __CONFIGFS_EATTR_RO(_name, \
- _fabric##_disc_show_##_name);
-
-extern int target_fabric_setup_cits(struct target_fabric_configfs *);