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

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  63
  64 #define MVM_DEBUGFS_READ_FILE_OPS(name)                                 \
  65 static const struct file_operations iwl_dbgfs_##name##_ops = {          \
  66         .read = iwl_dbgfs_##name##_read,                                \
  67         .open = simple_open,                                            \
  68         .llseek = generic_file_llseek,                                  \
  69 }
  70
  71 #define MVM_DEBUGFS_WRITE_WRAPPER(name, buflen, argtype)                \
  72 static ssize_t _iwl_dbgfs_##name##_write(struct file *file,             \
  73                                          const char __user *user_buf,   \
  74                                          size_t count, loff_t *ppos)    \
  75 {                                                                       \
  76         argtype *arg = file->private_data;                              \
  77         char buf[buflen] = {};                                          \
  78         size_t buf_size = min(count, sizeof(buf) -  1);                 \
  79                                                                         \
  80         if (copy_from_user(buf, user_buf, buf_size))                    \
  81                 return -EFAULT;                                         \
  82                                                                         \
  83         return iwl_dbgfs_##name##_write(arg, buf, buf_size, ppos);      \
  84 }                                                                       \
  85
  86 #define _MVM_DEBUGFS_READ_WRITE_FILE_OPS(name, buflen, argtype)         \
  87 MVM_DEBUGFS_WRITE_WRAPPER(name, buflen, argtype)                        \
  88 static const struct file_operations iwl_dbgfs_##name##_ops = {          \
  89         .write = _iwl_dbgfs_##name##_write,                             \
  90         .read = iwl_dbgfs_##name##_read,                                \
  91         .open = simple_open,                                            \
  92         .llseek = generic_file_llseek,                                  \
  93 };
  94
  95 #define _MVM_DEBUGFS_WRITE_FILE_OPS(name, buflen, argtype)              \
  96 MVM_DEBUGFS_WRITE_WRAPPER(name, buflen, argtype)                        \
  97 static const struct file_operations iwl_dbgfs_##name##_ops = {          \
  98         .write = _iwl_dbgfs_##name##_write,                             \
  99         .open = simple_open,                                            \
 100         .llseek = generic_file_llseek,                                  \
 101 };