iwlwifi/mvm/debugfs.h

0001 /* SPDX-License-Identifier: GPL-2.0 OR BSD-3-Clause */
0002 /*
0003  * Copyright (C) 2012-2014 Intel Corporation
0004  * Copyright (C) 2013-2014 Intel Mobile Communications GmbH
0005  */
0006 #define MVM_DEBUGFS_READ_FILE_OPS(name)                 \
0007 static const struct file_operations iwl_dbgfs_##name##_ops = {      \
0008     .read = iwl_dbgfs_##name##_read,                \
0009     .open = simple_open,                        \
0010     .llseek = generic_file_llseek,                  \
0011 }
0012
0013 #define MVM_DEBUGFS_WRITE_WRAPPER(name, buflen, argtype)        \
0014 static ssize_t _iwl_dbgfs_##name##_write(struct file *file,     \
0015                      const char __user *user_buf,   \
0016                      size_t count, loff_t *ppos)    \
0017 {                                   \
0018     argtype *arg = file->private_data;              \
0019     char buf[buflen] = {};                      \
0020     size_t buf_size = min(count, sizeof(buf) -  1);         \
0021                                     \
0022     if (copy_from_user(buf, user_buf, buf_size))            \
0023         return -EFAULT;                     \
0024                                     \
0025     return iwl_dbgfs_##name##_write(arg, buf, buf_size, ppos);  \
0026 }                                   \
0027
0028 #define _MVM_DEBUGFS_READ_WRITE_FILE_OPS(name, buflen, argtype)     \
0029 MVM_DEBUGFS_WRITE_WRAPPER(name, buflen, argtype)            \
0030 static const struct file_operations iwl_dbgfs_##name##_ops = {      \
0031     .write = _iwl_dbgfs_##name##_write,             \
0032     .read = iwl_dbgfs_##name##_read,                \
0033     .open = simple_open,                        \
0034     .llseek = generic_file_llseek,                  \
0035 };
0036
0037 #define _MVM_DEBUGFS_WRITE_FILE_OPS(name, buflen, argtype)      \
0038 MVM_DEBUGFS_WRITE_WRAPPER(name, buflen, argtype)            \
0039 static const struct file_operations iwl_dbgfs_##name##_ops = {      \
0040     .write = _iwl_dbgfs_##name##_write,             \
0041     .open = simple_open,                        \
0042     .llseek = generic_file_llseek,                  \
0043 };