rk3399_android7开启root权限

https://blog.csdn.net/liuhongbin2011net/article/details/83536367

• 第1处：kernel/security/commoncap.c
  将

  if (ns == cred->user_ns)
          return cap_raised(cred->cap_effective, cap) ? 0 : -EPERM;

修改为

if (ns == cred->user_ns)
            return  0;

• 第2处：system/extras/su/su.c

int main(int argc, char** argv) {
//    uid_t current_uid = getuid(); //去掉
//    if (current_uid != AID_ROOT && current_uid != AID_SHELL) error(1, 0, "not allowed");//去掉