pkcs7_usage 20 crypto/asymmetric_keys/pkcs7_key_type.c static unsigned pkcs7_usage; pkcs7_usage 21 crypto/asymmetric_keys/pkcs7_key_type.c module_param_named(usage, pkcs7_usage, uint, S_IWUSR | S_IRUGO); pkcs7_usage 22 crypto/asymmetric_keys/pkcs7_key_type.c MODULE_PARM_DESC(pkcs7_usage, pkcs7_usage 53 crypto/asymmetric_keys/pkcs7_key_type.c enum key_being_used_for usage = pkcs7_usage;