Add submodule dependency filesHEADmaster

Change-Id: Iaf8d18082d3991dec7c0ebbea540f092188eb4ec

1 files changed, 49 insertions, 0 deletions

diff --git a/roms/skiboot/external/opal-prd/module.c b/roms/skiboot/external/opal-prd/module.c
new file mode 100644
index 000000000..9c9c0af84
--- /dev/null
+++ b/roms/skiboot/external/opal-prd/module.c
@@ -0,0 +1,49 @@
+// SPDX-License-Identifier: Apache-2.0 OR GPL-2.0-or-later
+/*
+ * Load kernel modules needed for opal-prd
+ *
+ * Copyright 2015 IBM Corp.
+ */
+
+#include <stdlib.h>
+#include <unistd.h>
+#include <err.h>
+#include <sys/types.h>
+#include <sys/wait.h>
+
+#include "module.h"
+#include "opal-prd.h"
+
+int insert_module(const char *module)
+{
+	int status;
+	pid_t pid;
+
+	pid = fork();
+	if (!pid) {
+		execlp("modprobe", "modprobe", module, NULL);
+		err(EXIT_FAILURE, "Failed to run modprobe");
+	}
+
+	pid = waitpid(pid, &status, 0);
+	if (pid < 0) {
+		pr_log(LOG_ERR, "KMOD: waitpid failed for "
+				"modprobe process: %m");
+		return -1;
+	}
+
+	if (!WIFEXITED(status)) {
+		pr_log(LOG_WARNING, "KMOD: modprobe %s: process didn't "
+				"exit cleanly", module);
+		return -1;
+	}
+
+	if (WEXITSTATUS(status) != 0) {
+		pr_log(LOG_WARNING, "KMOD: modprobe %s failed, status %d",
+				module, WEXITSTATUS(status));
+		return -1;
+	}
+
+	return 0;
+}
+