mirror of https://gitee.com/openkylin/linux.git
115 lines
4.0 KiB
C
115 lines
4.0 KiB
C
/******************************************************************************
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*
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* This file is provided under a dual BSD/GPLv2 license. When using or
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* redistributing this file, you may do so under either license.
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*
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* GPL LICENSE SUMMARY
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*
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* Copyright(c) 2015 Intel Mobile Communications GmbH
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of version 2 of the GNU General Public License as
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* published by the Free Software Foundation.
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*
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* This program is distributed in the hope that it will be useful, but
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* WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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* General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, write to the Free Software
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* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110,
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* USA
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*
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* The full GNU General Public License is included in this distribution
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* in the file called COPYING.
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*
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* Contact Information:
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* Intel Linux Wireless <ilw@linux.intel.com>
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* Intel Corporation, 5200 N.E. Elam Young Parkway, Hillsboro, OR 97124-6497
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*
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* BSD LICENSE
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*
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* Copyright(c) 2015 Intel Mobile Communications GmbH
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* All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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*
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* * Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* * Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in
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* the documentation and/or other materials provided with the
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* distribution.
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* * Neither the name Intel Corporation nor the names of its
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* contributors may be used to endorse or promote products derived
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* from this software without specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
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* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
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* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
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* A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
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* OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
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* SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
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* LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
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* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
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* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
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* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
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* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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*
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*****************************************************************************/
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#include <linux/kernel.h>
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#include "iwl-trans.h"
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struct iwl_trans *iwl_trans_alloc(unsigned int priv_size,
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struct device *dev,
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const struct iwl_cfg *cfg,
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const struct iwl_trans_ops *ops,
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size_t dev_cmd_headroom)
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{
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struct iwl_trans *trans;
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#ifdef CONFIG_LOCKDEP
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static struct lock_class_key __key;
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#endif
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trans = kzalloc(sizeof(*trans) + priv_size, GFP_KERNEL);
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if (!trans)
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return NULL;
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#ifdef CONFIG_LOCKDEP
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lockdep_init_map(&trans->sync_cmd_lockdep_map, "sync_cmd_lockdep_map",
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&__key, 0);
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#endif
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trans->dev = dev;
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trans->cfg = cfg;
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trans->ops = ops;
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trans->dev_cmd_headroom = dev_cmd_headroom;
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trans->num_rx_queues = 1;
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snprintf(trans->dev_cmd_pool_name, sizeof(trans->dev_cmd_pool_name),
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"iwl_cmd_pool:%s", dev_name(trans->dev));
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trans->dev_cmd_pool =
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kmem_cache_create(trans->dev_cmd_pool_name,
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sizeof(struct iwl_device_cmd)
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+ trans->dev_cmd_headroom,
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sizeof(void *),
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SLAB_HWCACHE_ALIGN,
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NULL);
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if (!trans->dev_cmd_pool)
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goto free;
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return trans;
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free:
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kfree(trans);
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return NULL;
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}
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void iwl_trans_free(struct iwl_trans *trans)
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{
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kmem_cache_destroy(trans->dev_cmd_pool);
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kfree(trans);
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}
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