u-boot/fs/zfs/zfs_fletcher.c
Tom Rini d678a59d2d Revert "Merge patch series "arm: dts: am62-beagleplay: Fix Beagleplay Ethernet""
When bringing in the series 'arm: dts: am62-beagleplay: Fix Beagleplay
Ethernet"' I failed to notice that b4 noticed it was based on next and
so took that as the base commit and merged that part of next to master.

This reverts commit c8ffd1356d, reversing
changes made to 2ee6f3a5f7.

Reported-by: Jonas Karlman <jonas@kwiboo.se>
Signed-off-by: Tom Rini <trini@konsulko.com>
2024-05-19 08:16:36 -06:00

74 lines
1.8 KiB
C

// SPDX-License-Identifier: GPL-2.0+
/*
* GRUB -- GRand Unified Bootloader
* Copyright (C) 1999,2000,2001,2002,2003,2004 Free Software Foundation, Inc.
*/
/*
* Copyright 2007 Sun Microsystems, Inc. All rights reserved.
* Use is subject to license terms.
*/
#include <common.h>
#include <malloc.h>
#include <linux/stat.h>
#include <linux/time.h>
#include <linux/ctype.h>
#include <asm/byteorder.h>
#include "zfs_common.h"
#include <zfs/zfs.h>
#include <zfs/zio.h>
#include <zfs/dnode.h>
#include <zfs/uberblock_impl.h>
#include <zfs/vdev_impl.h>
#include <zfs/zio_checksum.h>
#include <zfs/zap_impl.h>
#include <zfs/zap_leaf.h>
#include <zfs/zfs_znode.h>
#include <zfs/dmu.h>
#include <zfs/dmu_objset.h>
#include <zfs/dsl_dir.h>
#include <zfs/dsl_dataset.h>
void
fletcher_2_endian(const void *buf, uint64_t size,
zfs_endian_t endian,
zio_cksum_t *zcp)
{
const uint64_t *ip = buf;
const uint64_t *ipend = ip + (size / sizeof(uint64_t));
uint64_t a0, b0, a1, b1;
for (a0 = b0 = a1 = b1 = 0; ip < ipend; ip += 2) {
a0 += zfs_to_cpu64(ip[0], endian);
a1 += zfs_to_cpu64(ip[1], endian);
b0 += a0;
b1 += a1;
}
zcp->zc_word[0] = cpu_to_zfs64(a0, endian);
zcp->zc_word[1] = cpu_to_zfs64(a1, endian);
zcp->zc_word[2] = cpu_to_zfs64(b0, endian);
zcp->zc_word[3] = cpu_to_zfs64(b1, endian);
}
void
fletcher_4_endian(const void *buf, uint64_t size, zfs_endian_t endian,
zio_cksum_t *zcp)
{
const uint32_t *ip = buf;
const uint32_t *ipend = ip + (size / sizeof(uint32_t));
uint64_t a, b, c, d;
for (a = b = c = d = 0; ip < ipend; ip++) {
a += zfs_to_cpu32(ip[0], endian);
b += a;
c += b;
d += c;
}
zcp->zc_word[0] = cpu_to_zfs64(a, endian);
zcp->zc_word[1] = cpu_to_zfs64(b, endian);
zcp->zc_word[2] = cpu_to_zfs64(c, endian);
zcp->zc_word[3] = cpu_to_zfs64(d, endian);
}