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
ptrace-x86_64.h
/*
* Copyright 2003 PathScale, Inc.
*
* Licensed under the GPL
*/
#ifndef __UM_PTRACE_X86_64_H
#define __UM_PTRACE_X86_64_H
#include "linux/compiler.h"
#include "asm/errno.h"
#include "asm/host_ldt.h"
#define __FRAME_OFFSETS /* Needed to get the R* macros */
#include "asm/ptrace-generic.h"
#define HOST_AUDIT_ARCH AUDIT_ARCH_X86_64
/* Also defined in sysdep/ptrace.h, so may already be defined. */
#ifndef FS_BASE
#define FS_BASE (21 * sizeof(unsigned long))
#define GS_BASE (22 * sizeof(unsigned long))
#define DS (23 * sizeof(unsigned long))
#define ES (24 * sizeof(unsigned long))
#define FS (25 * sizeof(unsigned long))
#define GS (26 * sizeof(unsigned long))
#endif
#define PT_REGS_RBX(r) UPT_RBX(&(r)->regs)
#define PT_REGS_RCX(r) UPT_RCX(&(r)->regs)
#define PT_REGS_RDX(r) UPT_RDX(&(r)->regs)
#define PT_REGS_RSI(r) UPT_RSI(&(r)->regs)
#define PT_REGS_RDI(r) UPT_RDI(&(r)->regs)
#define PT_REGS_RBP(r) UPT_RBP(&(r)->regs)
#define PT_REGS_RAX(r) UPT_RAX(&(r)->regs)
#define PT_REGS_R8(r) UPT_R8(&(r)->regs)
#define PT_REGS_R9(r) UPT_R9(&(r)->regs)
#define PT_REGS_R10(r) UPT_R10(&(r)->regs)
#define PT_REGS_R11(r) UPT_R11(&(r)->regs)
#define PT_REGS_R12(r) UPT_R12(&(r)->regs)
#define PT_REGS_R13(r) UPT_R13(&(r)->regs)
#define PT_REGS_R14(r) UPT_R14(&(r)->regs)
#define PT_REGS_R15(r) UPT_R15(&(r)->regs)
#define PT_REGS_FS(r) UPT_FS(&(r)->regs)
#define PT_REGS_GS(r) UPT_GS(&(r)->regs)
#define PT_REGS_DS(r) UPT_DS(&(r)->regs)
#define PT_REGS_ES(r) UPT_ES(&(r)->regs)
#define PT_REGS_SS(r) UPT_SS(&(r)->regs)
#define PT_REGS_CS(r) UPT_CS(&(r)->regs)
#define PT_REGS_ORIG_RAX(r) UPT_ORIG_RAX(&(r)->regs)
#define PT_REGS_RIP(r) UPT_IP(&(r)->regs)
#define PT_REGS_RSP(r) UPT_SP(&(r)->regs)
#define PT_REGS_EFLAGS(r) UPT_EFLAGS(&(r)->regs)
/* XXX */
#define user_mode(r) UPT_IS_USER(&(r)->regs)
#define PT_REGS_ORIG_SYSCALL(r) PT_REGS_RAX(r)
#define PT_REGS_SYSCALL_RET(r) PT_REGS_RAX(r)
#define PT_FIX_EXEC_STACK(sp) do ; while(0)
#define profile_pc(regs) PT_REGS_IP(regs)
static inline int ptrace_get_thread_area(struct task_struct *child, int idx,
struct user_desc __user *user_desc)
{
return -ENOSYS;
}
static inline int ptrace_set_thread_area(struct task_struct *child, int idx,
struct user_desc __user *user_desc)
{
return -ENOSYS;
}
static inline void arch_switch_to_tt(struct task_struct *from,
struct task_struct *to)
{
}
static inline void arch_switch_to_skas(struct task_struct *from,
struct task_struct *to)
{
}
#endif
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