cregit-Linux how code gets into the kernel

Release 4.11 drivers/net/wireless/intel/iwlwifi/mvm/debugfs.h

/******************************************************************************
 *
 * This file is provided under a dual BSD/GPLv2 license.  When using or
 * redistributing this file, you may do so under either license.
 *
 * GPL LICENSE SUMMARY
 *
 * Copyright(c) 2012 - 2014 Intel Corporation. All rights reserved.
 * Copyright(c) 2013 - 2014 Intel Mobile Communications GmbH
 *
 * This program is free software; you can redistribute it and/or modify
 * it under the terms of version 2 of the GNU General Public License as
 * published by the Free Software Foundation.
 *
 * 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., 51 Franklin Street, Fifth Floor, Boston, MA 02110,
 * USA
 *
 * The full GNU General Public License is included in this distribution
 * in the file called COPYING.
 *
 * Contact Information:
 *  Intel Linux Wireless <linuxwifi@intel.com>
 * Intel Corporation, 5200 N.E. Elam Young Parkway, Hillsboro, OR 97124-6497
 *
 * BSD LICENSE
 *
 * Copyright(c) 2012 - 2014 Intel Corporation. All rights reserved.
 * Copyright(c) 2013 - 2014 Intel Mobile Communications GmbH
 * All rights reserved.
 *
 * Redistribution and use in source and binary forms, with or without
 * modification, are permitted provided that the following conditions
 * are met:
 *
 *  * Redistributions of source code must retain the above copyright
 *    notice, this list of conditions and the following disclaimer.
 *  * Redistributions in binary form must reproduce the above copyright
 *    notice, this list of conditions and the following disclaimer in
 *    the documentation and/or other materials provided with the
 *    distribution.
 *  * Neither the name Intel Corporation nor the names of its
 *    contributors may be used to endorse or promote products derived
 *    from this software without specific prior written permission.
 *
 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
 * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
 * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
 * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
 * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
 * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
 * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
 * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
 *
 *****************************************************************************/


#define MVM_DEBUGFS_READ_FILE_OPS(name)					\
static const struct file_operations iwl_dbgfs_##name##_ops = {          \
        .read = iwl_dbgfs_##name##_read,                                \
        .open = simple_open,                                            \
        .llseek = generic_file_llseek,                                  \
}


#define MVM_DEBUGFS_WRITE_WRAPPER(name, buflen, argtype)		\
static ssize_t _iwl_dbgfs_##name##_write(struct file *file,             \
                                         const char __user *user_buf,   \
                                         size_t count, loff_t *ppos)    \
{                                                                       \
        argtype *arg = file->private_data;                              \
        char buf[buflen] = {};                                          \
        size_t buf_size = min(count, sizeof(buf) -  1);                 \
                                                                        \
        if (copy_from_user(buf, user_buf, buf_size))                    \
                return -EFAULT;                                         \
                                                                        \
        return iwl_dbgfs_##name##_write(arg, buf, buf_size, ppos);      \
}                                                                       \

#define _MVM_DEBUGFS_READ_WRITE_FILE_OPS(name, buflen, argtype)         \
MVM_DEBUGFS_WRITE_WRAPPER(name, buflen, argtype)                        \
static const struct file_operations iwl_dbgfs_##name##_ops = {          \
        .write = _iwl_dbgfs_##name##_write,                             \
        .read = iwl_dbgfs_##name##_read,                                \
        .open = simple_open,                                            \
        .llseek = generic_file_llseek,                                  \
};


#define _MVM_DEBUGFS_WRITE_FILE_OPS(name, buflen, argtype)		\
MVM_DEBUGFS_WRITE_WRAPPER(name, buflen, argtype)                        \
static const struct file_operations iwl_dbgfs_##name##_ops = {          \
        .write = _iwl_dbgfs_##name##_write,                             \
        .open = simple_open,                                            \
        .llseek = generic_file_llseek,                                  \
};

Overall Contributors

PersonTokensPropCommitsCommitProp
Johannes Berg3296.97%266.67%
Emmanuel Grumbach13.03%133.33%
Total33100.00%3100.00%
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