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

   1 /******************************************************************************
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   6  * GPL LICENSE SUMMARY
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   8  * Copyright(c) 2012 - 2014 Intel Corporation. All rights reserved.
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  34  * Copyright(c) 2012 - 2014 Intel Corporation. All rights reserved.
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  64  *****************************************************************************/
  65
  66 #define MVM_DEBUGFS_READ_FILE_OPS(name)                                 \
  67 static const struct file_operations iwl_dbgfs_##name##_ops = {          \
  68         .read = iwl_dbgfs_##name##_read,                                \
  69         .open = simple_open,                                            \
  70         .llseek = generic_file_llseek,                                  \
  71 }
  72
  73 #define MVM_DEBUGFS_WRITE_WRAPPER(name, buflen, argtype)                \
  74 static ssize_t _iwl_dbgfs_##name##_write(struct file *file,             \
  75                                          const char __user *user_buf,   \
  76                                          size_t count, loff_t *ppos)    \
  77 {                                                                       \
  78         argtype *arg = file->private_data;                              \
  79         char buf[buflen] = {};                                          \
  80         size_t buf_size = min(count, sizeof(buf) -  1);                 \
  81                                                                         \
  82         if (copy_from_user(buf, user_buf, buf_size))                    \
  83                 return -EFAULT;                                         \
  84                                                                         \
  85         return iwl_dbgfs_##name##_write(arg, buf, buf_size, ppos);      \
  86 }                                                                       \
  87
  88 #define _MVM_DEBUGFS_READ_WRITE_FILE_OPS(name, buflen, argtype)         \
  89 MVM_DEBUGFS_WRITE_WRAPPER(name, buflen, argtype)                        \
  90 static const struct file_operations iwl_dbgfs_##name##_ops = {          \
  91         .write = _iwl_dbgfs_##name##_write,                             \
  92         .read = iwl_dbgfs_##name##_read,                                \
  93         .open = simple_open,                                            \
  94         .llseek = generic_file_llseek,                                  \
  95 };
  96
  97 #define _MVM_DEBUGFS_WRITE_FILE_OPS(name, buflen, argtype)              \
  98 MVM_DEBUGFS_WRITE_WRAPPER(name, buflen, argtype)                        \
  99 static const struct file_operations iwl_dbgfs_##name##_ops = {          \
 100         .write = _iwl_dbgfs_##name##_write,                             \
 101         .open = simple_open,                                            \
 102         .llseek = generic_file_llseek,                                  \
 103 };