1. 根目录:
2. tools
3. testing
4. nvdimm
5. config_check.c

#include <linux/kconfig.h>
#include <linux/bug.h>

void check(void)
{
	/*
	 * These kconfig symbols must be set to "m" for nfit_test to
	 * load and operate.
	 */
	BUILD_BUG_ON(!IS_MODULE(CONFIG_LIBNVDIMM));
	BUILD_BUG_ON(!IS_MODULE(CONFIG_BLK_DEV_PMEM));
	BUILD_BUG_ON(!IS_MODULE(CONFIG_ND_BTT));
	BUILD_BUG_ON(!IS_MODULE(CONFIG_ND_BLK));
	BUILD_BUG_ON(!IS_MODULE(CONFIG_ACPI_NFIT));
}