iwlwifi: mvm: use debugfs_create_bool() for enable_scan_iteration_notif

There is no need to implement the enable_scan_iteration_notif handling
explicitly and there's no reason not to export the current value.  So
use debugfs_create_bool() instead.
Signed-off-by: Luciano Coelho <luciano.coelho@intel.com>
Signed-off-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com>

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

@@ -1473,26 +1473,6 @@ iwl_dbgfs_prph_reg_write(struct iwl_mvm *mvm, char *buf,
 	return count;
 }
 
-static ssize_t iwl_dbgfs_enable_scan_iteration_notif_write(struct iwl_mvm *mvm,
-							   char *buf,
-							   size_t count,
-							   loff_t *ppos)
-{
-	int val;
-
-	mutex_lock(&mvm->mutex);
-
-	if (kstrtoint(buf, 10, &val)) {
-		mutex_unlock(&mvm->mutex);
-		return -EINVAL;
-	}
-
-	mvm->scan_iter_notif_enabled = val;
-	mutex_unlock(&mvm->mutex);
-
-	return count;
-}
-
 MVM_DEBUGFS_READ_WRITE_FILE_OPS(prph_reg, 64);
 
 /* Device wide debugfs entries */
@@ -1515,7 +1495,6 @@ MVM_DEBUGFS_READ_WRITE_FILE_OPS(scan_ant_rxchain, 8);
 MVM_DEBUGFS_READ_WRITE_FILE_OPS(d0i3_refs, 8);
 MVM_DEBUGFS_READ_WRITE_FILE_OPS(fw_dbg_conf, 8);
 MVM_DEBUGFS_WRITE_FILE_OPS(fw_dbg_collect, 8);
-MVM_DEBUGFS_WRITE_FILE_OPS(enable_scan_iteration_notif, 8);
 
 #ifdef CONFIG_IWLWIFI_BCAST_FILTERING
 MVM_DEBUGFS_READ_WRITE_FILE_OPS(bcast_filters, 256);
@@ -1559,8 +1538,11 @@ int iwl_mvm_dbgfs_register(struct iwl_mvm *mvm, struct dentry *dbgfs_dir)
 	MVM_DEBUGFS_ADD_FILE(d0i3_refs, mvm->debugfs_dir, S_IRUSR | S_IWUSR);
 	MVM_DEBUGFS_ADD_FILE(fw_dbg_conf, mvm->debugfs_dir, S_IRUSR | S_IWUSR);
 	MVM_DEBUGFS_ADD_FILE(fw_dbg_collect, mvm->debugfs_dir, S_IWUSR);
-	MVM_DEBUGFS_ADD_FILE(enable_scan_iteration_notif, mvm->debugfs_dir,
-			     S_IWUSR);
+	if (!debugfs_create_bool("enable_scan_iteration_notif",
+				 S_IRUSR | S_IWUSR,
+				 mvm->debugfs_dir,
+				 &mvm->scan_iter_notif_enabled))
+		goto err;
 
 #ifdef CONFIG_IWLWIFI_BCAST_FILTERING
 	if (mvm->fw->ucode_capa.flags & IWL_UCODE_TLV_FLAGS_BCAST_FILTERING) {

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

@@ -688,7 +688,7 @@ struct iwl_mvm {
 	bool disable_power_off;
 	bool disable_power_off_d3;
 
-	bool scan_iter_notif_enabled;
+	u32 scan_iter_notif_enabled; /* must be u32 for debugfs_create_bool */
 
 	struct debugfs_blob_wrapper nvm_hw_blob;
 	struct debugfs_blob_wrapper nvm_sw_blob;