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
irq.h
#ifndef __UM_IRQ_H
#define __UM_IRQ_H

#define TIMER_IRQ		0
#define UMN_IRQ			1
#define CONSOLE_IRQ		2
#define CONSOLE_WRITE_IRQ	3
#define UBD_IRQ			4
#define UM_ETH_IRQ		5
#define SSL_IRQ			6
#define SSL_WRITE_IRQ		7
#define ACCEPT_IRQ		8
#define MCONSOLE_IRQ		9
#define WINCH_IRQ		10
#define SIGIO_WRITE_IRQ 	11
#define TELNETD_IRQ 		12
#define XTERM_IRQ 		13

#define LAST_IRQ XTERM_IRQ
#define NR_IRQS (LAST_IRQ + 1)

#endif
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