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/*
 * linux/arch/unicore32/include/asm/checksum.h
 *
 * Code specific to PKUnity SoC and UniCore ISA
 *
 * Copyright (C) 2001-2010 GUAN Xue-tao
 *
 * This program is free software; you can redistribute it and/or modify
 * it under the terms of the GNU General Public License version 2 as
 * published by the Free Software Foundation.
 *
 * IP checksum routines
 */
#ifndef __UNICORE_CHECKSUM_H__
#define __UNICORE_CHECKSUM_H__

/*
 * computes the checksum of the TCP/UDP pseudo-header
 * returns a 16-bit checksum, already complemented
 */

static inline __wsum
csum_tcpudp_nofold(__be32 saddr, __be32 daddr, __u32 len,
		   __u8 proto, __wsum sum)
{
	__asm__(
	"add.a	%0, %1, %2\n"
	"addc.a	%0, %0, %3\n"
	"addc.a	%0, %0, %4 << #8\n"
	"addc.a	%0, %0, %5\n"
	"addc	%0, %0, #0\n"
	: "=&r"(sum)
	: "r" (sum), "r" (daddr), "r" (saddr), "r" (len), "Ir" (htons(proto))
	: "cc");
	return sum;
}
#define csum_tcpudp_nofold	csum_tcpudp_nofold

#include <asm-generic/checksum.h>

#endif

Filemanager

Name Type Size Permission Actions
Kbuild File 877 B 0644
assembler.h File 2.71 KB 0644
barrier.h File 602 B 0644
bitops.h File 1.19 KB 0644
bug.h File 632 B 0644
cache.h File 805 B 0644
cacheflush.h File 6.46 KB 0644
checksum.h File 978 B 0644
cmpxchg.h File 1.43 KB 0644
cpu-single.h File 1.18 KB 0644
cputype.h File 787 B 0644
delay.h File 1.53 KB 0644
dma-mapping.h File 1.11 KB 0644
dma.h File 531 B 0644
elf.h File 2.58 KB 0644
fpstate.h File 550 B 0644
fpu-ucf64.h File 1.32 KB 0644
gpio.h File 2.75 KB 0644
hwcap.h File 773 B 0644
hwdef-copro.h File 1.3 KB 0644
io.h File 2 KB 0644
irq.h File 2.56 KB 0644
irqflags.h File 1.03 KB 0644
linkage.h File 524 B 0644
memblock.h File 1.1 KB 0644
memory.h File 3.16 KB 0644
mmu.h File 430 B 0644
mmu_context.h File 2.76 KB 0644
page.h File 1.89 KB 0644
pci.h File 578 B 0644
pgalloc.h File 2.47 KB 0644
pgtable-hwdef.h File 1.3 KB 0644
pgtable.h File 9.42 KB 0644
processor.h File 1.98 KB 0644
ptrace.h File 1.37 KB 0644
stacktrace.h File 787 B 0644
string.h File 994 B 0644
suspend.h File 667 B 0644
switch_to.h File 901 B 0644
thread_info.h File 3.29 KB 0644
timex.h File 767 B 0644
tlb.h File 781 B 0644
tlbflush.h File 5.53 KB 0644
traps.h File 627 B 0644
uaccess.h File 1.33 KB 0644