Revision 66218da212bf141532d678a699f5789c78145ab1 authored by Atsushi Nemoto on 24 January 2007, 06:43:34 UTC, committed by Ralf Baechle on 24 January 2007, 19:23:22 UTC
The commit 8e3d8433d8c22ca6c42cba4a67d300c39aae7822 ([NET]: MIPS
checksum annotations and cleanups) broke 64-bit MIPS.

The problem is the commit replaces some unsigned long with __be32.  On
64bit MIPS, a __be32 (i.e. unsigned int) value is represented as a
sign-extented 32-bit value in a 64-bit argument register.  So the
address 192.168.0.1 (0xc0a80001) is passed as 0xffffffffc0a80001 to
csum_tcpudp_nofold() but the asm code in the function expects
0x00000000c0a80001, therefore it returns a wrong checksum.  Explicit
cast to unsigned long is needed to drop high 32bit.

Signed-off-by: Atsushi Nemoto <anemo@mba.ocn.ne.jp>
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
1 parent 9cfdf6f
Raw File
mb93091-fpga-irqs.h
/* mb93091-fpga-irqs.h: MB93091 CPU board FPGA IRQs
 *
 * Copyright (C) 2004 Red Hat, Inc. All Rights Reserved.
 * Written by David Howells (dhowells@redhat.com)
 *
 * This program is free software; you can redistribute it and/or
 * modify it under the terms of the GNU General Public License
 * as published by the Free Software Foundation; either version
 * 2 of the License, or (at your option) any later version.
 */

#ifndef _ASM_MB93091_FPGA_IRQS_H
#define _ASM_MB93091_FPGA_IRQS_H

#include <asm/irq.h>

#ifndef __ASSEMBLY__

/* IRQ IDs presented to drivers */
enum {
	IRQ_FPGA__UNUSED			= IRQ_BASE_FPGA,
	IRQ_FPGA_SYSINT_BUS_EXPANSION_1,
	IRQ_FPGA_SL_BUS_EXPANSION_2,
	IRQ_FPGA_PCI_INTD,
	IRQ_FPGA_PCI_INTC,
	IRQ_FPGA_PCI_INTB,
	IRQ_FPGA_PCI_INTA,
	IRQ_FPGA_SL_BUS_EXPANSION_7,
	IRQ_FPGA_SYSINT_BUS_EXPANSION_8,
	IRQ_FPGA_SL_BUS_EXPANSION_9,
	IRQ_FPGA_MB86943_PCI_INTA,
	IRQ_FPGA_MB86943_SLBUS_SIDE,
	IRQ_FPGA_RTL8029_INTA,
	IRQ_FPGA_SYSINT_BUS_EXPANSION_13,
	IRQ_FPGA_SL_BUS_EXPANSION_14,
	IRQ_FPGA_NMI,
};


#endif /* !__ASSEMBLY__ */

#endif /* _ASM_MB93091_FPGA_IRQS_H */
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