| in_cksum.h (235941) | in_cksum.h (236992) |
|---|---|
| 1/*- 2 * Copyright (c) 1990 The Regents of the University of California. 3 * All rights reserved. 4 * 5 * Redistribution and use in source and binary forms, with or without 6 * modification, are permitted provided that the following conditions 7 * are met: 8 * 1. Redistributions of source code must retain the above copyright --- 19 unchanged lines hidden (view full) --- 28 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 29 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 30 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 31 * SUCH DAMAGE. 32 * 33 * from tahoe: in_cksum.c 1.2 86/01/05 34 * from: @(#)in_cksum.c 1.3 (Berkeley) 1/19/91 35 * from: Id: in_cksum.c,v 1.8 1995/12/03 18:35:19 bde Exp | 1/*- 2 * Copyright (c) 1990 The Regents of the University of California. 3 * All rights reserved. 4 * 5 * Redistribution and use in source and binary forms, with or without 6 * modification, are permitted provided that the following conditions 7 * are met: 8 * 1. Redistributions of source code must retain the above copyright --- 19 unchanged lines hidden (view full) --- 28 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 29 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 30 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 31 * SUCH DAMAGE. 32 * 33 * from tahoe: in_cksum.c 1.2 86/01/05 34 * from: @(#)in_cksum.c 1.3 (Berkeley) 1/19/91 35 * from: Id: in_cksum.c,v 1.8 1995/12/03 18:35:19 bde Exp |
| 36 * $FreeBSD: head/sys/arm/include/in_cksum.h 235941 2012-05-24 22:00:48Z bz $ | 36 * $FreeBSD: head/sys/arm/include/in_cksum.h 236992 2012-06-13 05:02:51Z imp $ |
| 37 */ 38 39#ifndef _MACHINE_IN_CKSUM_H_ 40#define _MACHINE_IN_CKSUM_H_ 1 41 42#include <sys/cdefs.h> 43 44#ifdef _KERNEL --- 6 unchanged lines hidden (view full) --- 51#endif 52 53static __inline u_short 54in_pseudo(u_int sum, u_int b, u_int c) 55{ 56 __asm __volatile("adds %0, %0, %1\n" 57 "adcs %0, %0, %2\n" 58 "adc %0, %0, #0\n" | 37 */ 38 39#ifndef _MACHINE_IN_CKSUM_H_ 40#define _MACHINE_IN_CKSUM_H_ 1 41 42#include <sys/cdefs.h> 43 44#ifdef _KERNEL --- 6 unchanged lines hidden (view full) --- 51#endif 52 53static __inline u_short 54in_pseudo(u_int sum, u_int b, u_int c) 55{ 56 __asm __volatile("adds %0, %0, %1\n" 57 "adcs %0, %0, %2\n" 58 "adc %0, %0, #0\n" |
| 59 : "+r" (sum) | 59 : "+r" (sum) |
| 60 : "r" (b), "r" (c)); 61 sum = (sum & 0xffff) + (sum >> 16); 62 if (sum > 0xffff) 63 sum -= 0xffff; 64 return (sum); 65} 66 67#endif /* _KERNEL */ 68#endif /* _MACHINE_IN_CKSUM_H_ */ | 60 : "r" (b), "r" (c)); 61 sum = (sum & 0xffff) + (sum >> 16); 62 if (sum > 0xffff) 63 sum -= 0xffff; 64 return (sum); 65} 66 67#endif /* _KERNEL */ 68#endif /* _MACHINE_IN_CKSUM_H_ */ |