Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net

[firefly-linux-kernel-4.4.55.git] / drivers / net / wireless / iwlwifi / mvm / debugfs.c

diff --git a/drivers/net/wireless/iwlwifi/mvm/debugfs.c b/drivers/net/wireless/iwlwifi/mvm/debugfs.c
index 56bf601f8991da97d3705bc0beed97860d42061f..b080b4ba545806e3ddf4ebd980cc2975837c29ae 100644 (file)
--- a/drivers/net/wireless/iwlwifi/mvm/debugfs.c
+++ b/drivers/net/wireless/iwlwifi/mvm/debugfs.c
@@ -398,6 +398,28 @@ static ssize_t iwl_dbgfs_bt_notif_read(struct file *file, char __user *user_buf,
 }
 #undef BT_MBOX_PRINT
 
+static ssize_t iwl_dbgfs_fw_restart_write(struct file *file,
+                                         const char __user *user_buf,
+                                         size_t count, loff_t *ppos)
+{
+       struct iwl_mvm *mvm = file->private_data;
+       bool restart_fw = iwlwifi_mod_params.restart_fw;
+       int ret;
+
+       iwlwifi_mod_params.restart_fw = true;
+
+       mutex_lock(&mvm->mutex);
+
+       /* take the return value to make compiler happy - it will fail anyway */
+       ret = iwl_mvm_send_cmd_pdu(mvm, REPLY_ERROR, CMD_SYNC, 0, NULL);
+
+       mutex_unlock(&mvm->mutex);
+
+       iwlwifi_mod_params.restart_fw = restart_fw;
+
+       return count;
+}
+
 #define MVM_DEBUGFS_READ_FILE_OPS(name)                                        \
 static const struct file_operations iwl_dbgfs_##name##_ops = { \
        .read = iwl_dbgfs_##name##_read,                                \
@@ -440,6 +462,7 @@ MVM_DEBUGFS_READ_FILE_OPS(stations);
 MVM_DEBUGFS_READ_FILE_OPS(bt_notif);
 MVM_DEBUGFS_WRITE_FILE_OPS(power_down_allow);
 MVM_DEBUGFS_WRITE_FILE_OPS(power_down_d3_allow);
+MVM_DEBUGFS_WRITE_FILE_OPS(fw_restart);
 
 int iwl_mvm_dbgfs_register(struct iwl_mvm *mvm, struct dentry *dbgfs_dir)
 {
@@ -454,6 +477,7 @@ int iwl_mvm_dbgfs_register(struct iwl_mvm *mvm, struct dentry *dbgfs_dir)
        MVM_DEBUGFS_ADD_FILE(bt_notif, dbgfs_dir, S_IRUSR);
        MVM_DEBUGFS_ADD_FILE(power_down_allow, mvm->debugfs_dir, S_IWUSR);
        MVM_DEBUGFS_ADD_FILE(power_down_d3_allow, mvm->debugfs_dir, S_IWUSR);
+       MVM_DEBUGFS_ADD_FILE(fw_restart, mvm->debugfs_dir, S_IWUSR);
 
        /*
         * Create a symlink with mac80211. It will be removed when mac80211