516 #define IP(L, R, T)		\  argument
517 	ROL(R, 4);		\
519 	L ^= R;			\
521 	R ^= L;			\
523 	ROL(R, 12);		\
525 	L ^= R;			\
527 	R ^= L;			\
529 	ROR(R, 14);		\
531 	L ^= R;			\
533 	R ^= L;			\
535 	ROL(R, 6);		\
537 	L ^= R;			\
539 	R ^= L;			\
541 	ROR(R, 7);		\
543 	L ^= R;			\
545 	R ^= L;			\
549 #define FP(L, R, T)		\  argument
552 	L ^= R;			\
554 	R ^= L;			\
556 	ROL(R, 7);		\
558 	L ^= R;			\
560 	R ^= L;			\
562 	ROR(R, 6);		\
564 	L ^= R;			\
566 	R ^= L;			\
568 	ROL(R, 14);		\
570 	L ^= R;			\
572 	R ^= L;			\
574 	ROR(R, 12);		\
576 	L ^= R;			\
578 	R ^= L;			\
580 	ROR(R, 4);
582 #define ROUND(L, R, A, B, K, d)					\  argument
584 	B ^= R;				A ^= R;			\
784 	u32 L, R, A, B;  in des_encrypt()  local
788 	R = get_unaligned_le32(src + 4);  in des_encrypt()
790 	IP(L, R, A);  in des_encrypt()
792 		ROUND(L, R, A, B, K, 2);  in des_encrypt()
793 		ROUND(R, L, A, B, K, 2);  in des_encrypt()
795 	FP(R, L, A);  in des_encrypt()
797 	put_unaligned_le32(R, dst);  in des_encrypt()
805 	u32 L, R, A, B;  in des_decrypt()  local
809 	R = get_unaligned_le32(src + 4);  in des_decrypt()
811 	IP(L, R, A);  in des_decrypt()
813 		ROUND(L, R, A, B, K, -2);  in des_decrypt()
814 		ROUND(R, L, A, B, K, -2);  in des_decrypt()
816 	FP(R, L, A);  in des_decrypt()
818 	put_unaligned_le32(R, dst);  in des_decrypt()
847 	u32 L, R, A, B;  in des3_ede_encrypt()  local
851 	R = get_unaligned_le32(src + 4);  in des3_ede_encrypt()
853 	IP(L, R, A);  in des3_ede_encrypt()
855 		ROUND(L, R, A, B, K, 2);  in des3_ede_encrypt()
856 		ROUND(R, L, A, B, K, 2);  in des3_ede_encrypt()
859 		ROUND(R, L, A, B, K, 2);  in des3_ede_encrypt()
860 		ROUND(L, R, A, B, K, 2);  in des3_ede_encrypt()
863 		ROUND(L, R, A, B, K, 2);  in des3_ede_encrypt()
864 		ROUND(R, L, A, B, K, 2);  in des3_ede_encrypt()
866 	FP(R, L, A);  in des3_ede_encrypt()
868 	put_unaligned_le32(R, dst);  in des3_ede_encrypt()
876 	u32 L, R, A, B;  in des3_ede_decrypt()  local
880 	R = get_unaligned_le32(src + 4);  in des3_ede_decrypt()
882 	IP(L, R, A);  in des3_ede_decrypt()
884 		ROUND(L, R, A, B, K, -2);  in des3_ede_decrypt()
885 		ROUND(R, L, A, B, K, -2);  in des3_ede_decrypt()
888 		ROUND(R, L, A, B, K, -2);  in des3_ede_decrypt()
889 		ROUND(L, R, A, B, K, -2);  in des3_ede_decrypt()
892 		ROUND(L, R, A, B, K, -2);  in des3_ede_decrypt()
893 		ROUND(R, L, A, B, K, -2);  in des3_ede_decrypt()
895 	FP(R, L, A);  in des3_ede_decrypt()
897 	put_unaligned_le32(R, dst);  in des3_ede_decrypt()