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

   1 /* SPDX-License-Identifier: GPL-2.0 OR BSD-3-Clause */
   2 /*
   3  * Copyright (C) 2023 Intel Corporation
   4  * Copyright (C) 2012-2014 Intel Corporation
   5  * Copyright (C) 2013-2014 Intel Mobile Communications GmbH
   6  */
   7 #define MVM_DEBUGFS_READ_FILE_OPS(name)                                 \
   8 static const struct file_operations iwl_dbgfs_##name##_ops = {          \
   9         .read = iwl_dbgfs_##name##_read,                                \
  10         .open = simple_open,                                            \
  11         .llseek = generic_file_llseek,                                  \
  12 }
  13
  14 #define MVM_DEBUGFS_WRITE_WRAPPER(name, buflen, argtype)                \
  15 static ssize_t _iwl_dbgfs_##name##_write(struct file *file,             \
  16                                          const char __user *user_buf,   \
  17                                          size_t count, loff_t *ppos)    \
  18 {                                                                       \
  19         argtype *arg = file->private_data;                              \
  20         char buf[buflen] = {};                                          \
  21         size_t buf_size = min(count, sizeof(buf) -  1);                 \
  22                                                                         \
  23         if (copy_from_user(buf, user_buf, buf_size))                    \
  24                 return -EFAULT;                                         \
  25                                                                         \
  26         return iwl_dbgfs_##name##_write(arg, buf, buf_size, ppos);      \
  27 }                                                                       \
  28
  29 #define _MVM_DEBUGFS_READ_WRITE_FILE_OPS(name, buflen, argtype)         \
  30 MVM_DEBUGFS_WRITE_WRAPPER(name, buflen, argtype)                        \
  31 static const struct file_operations iwl_dbgfs_##name##_ops = {          \
  32         .write = _iwl_dbgfs_##name##_write,                             \
  33         .read = iwl_dbgfs_##name##_read,                                \
  34         .open = simple_open,                                            \
  35         .llseek = generic_file_llseek,                                  \
  36 };
  37
  38 #define _MVM_DEBUGFS_WRITE_FILE_OPS(name, buflen, argtype)              \
  39 MVM_DEBUGFS_WRITE_WRAPPER(name, buflen, argtype)                        \
  40 static const struct file_operations iwl_dbgfs_##name##_ops = {          \
  41         .write = _iwl_dbgfs_##name##_write,                             \
  42         .open = simple_open,                                            \
  43         .llseek = generic_file_llseek,                                  \
  44 };