1. 根目录:
2. include
3. linux
4. license.h

#ifndef __LICENSE_H
#define __LICENSE_H

static inline int license_is_gpl_compatible(const char *license)
{
	return (strcmp(license, "GPL") == 0
		|| strcmp(license, "GPL v2") == 0
		|| strcmp(license, "GPL and additional rights") == 0
		|| strcmp(license, "Dual BSD/GPL") == 0
		|| strcmp(license, "Dual MIT/GPL") == 0
		|| strcmp(license, "Dual MPL/GPL") == 0);
}

#endif