struct sabi_config {
        const char *test_string;
        u16 main_function;
-       struct sabi_header_offsets header_offsets;
-       struct sabi_commands commands;
-       struct sabi_performance_level performance_levels[4];
+       const struct sabi_header_offsets header_offsets;
+       const struct sabi_commands commands;
+       const struct sabi_performance_level performance_levels[4];
 };
 
-static struct sabi_config sabi_configs[] = {
+static const struct sabi_config sabi_configs[] = {
        {
                .test_string = "SECLINUX",
 
        { },
 };
 
-static struct sabi_config *sabi_config;
+static const struct sabi_config *sabi_config;
 
 static void __iomem *sabi;
 static void __iomem *sabi_iface;
        if (count >= 1) {
                int i;
                for (i = 0; sabi_config->performance_levels[i].name; ++i) {
-                       struct sabi_performance_level *level =
+                       const struct sabi_performance_level *level =
                                &sabi_config->performance_levels[i];
                        if (!strncasecmp(level->name, buf, strlen(level->name))) {
                                sabi_set_command(sabi_config->commands.set_performance_level,