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[PATCH] sanitize building of fs/compat_ioctl.c 

Now that all these entries in the arch ioctl32.c files are gone [1], we can
build fs/compat_ioctl.c as a normal object and kill tons of cruft.  We need a
special do_ioctl32_pointer handler for s390 so the compat_ptr call is done.
This is not needed but harmless on all other architectures.  Also remove some
superflous includes in fs/compat_ioctl.c

Tested on ppc64.

[1] parisc still had it's PPP handler left, which is not fully correct
    for ppp and besides that ppp uses the generic SIOCPRIV ioctl so it'd
    kick in for all netdevice users.  We can introduce a proper handler
    in one of the next patch series by adding a compat_ioctl method to
    struct net_device but for now let's just kill it - parisc doesn't
    compile in mainline anyway and I don't want this to block this
    patchset.

Signed-off-by: Christoph Hellwig <hch@lst.de>
Cc: Matthew Wilcox <willy@debian.org>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
This commit is contained in:
Christoph Hellwig 2006-01-09 20:52:14 -08:00 committed by Linus Torvalds
parent 8262037f40
commit e6a6d2efcb
17 changed files with 29 additions and 341 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

4
arch/ia64/ia32/Makefile
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@ -2,11 +2,9 @@
# Makefile for the ia32 kernel emulation subsystem.
#
obj-y := ia32_entry.o sys_ia32.o ia32_ioctl.o ia32_signal.o \
obj-y := ia32_entry.o sys_ia32.o ia32_signal.o \
ia32_support.o ia32_traps.o binfmt_elf32.o ia32_ldt.o
CFLAGS_ia32_ioctl.o += -Ifs/
# Don't let GCC uses f16-f31 so that save_ia32_fpstate_live() and
# restore_ia32_fpstate_live() can be sure the live register contain user-level state.
CFLAGS_ia32_signal.o += -mfixed-range=f16-f31

45
arch/ia64/ia32/ia32_ioctl.c
View File

@ -1,45 +0,0 @@
/*
* IA32 Architecture-specific ioctl shim code
*
* Copyright (C) 2000 VA Linux Co
* Copyright (C) 2000 Don Dugger <n0ano@valinux.com>
* Copyright (C) 2001-2003 Hewlett-Packard Co
* David Mosberger-Tang <davidm@hpl.hp.com>
*/
#include <linux/signal.h> /* argh, msdos_fs.h isn't self-contained... */
#include <linux/syscalls.h>
#include "ia32priv.h"
#define INCLUDES
#include "compat_ioctl.c"
#define IOCTL_NR(a) ((a) & ~(_IOC_SIZEMASK << _IOC_SIZESHIFT))
#define DO_IOCTL(fd, cmd, arg) ({ \
int _ret; \
mm_segment_t _old_fs = get_fs(); \
\
set_fs(KERNEL_DS); \
_ret = sys_ioctl(fd, cmd, (unsigned long)arg); \
set_fs(_old_fs); \
_ret; \
})
#define CODE
#include "compat_ioctl.c"
#define COMPATIBLE_IOCTL(cmd) HANDLE_IOCTL((cmd),sys_ioctl)
#define HANDLE_IOCTL(cmd,handler) { (cmd), (ioctl_trans_handler_t)(handler), NULL },
#define IOCTL_TABLE_START \
struct ioctl_trans ioctl_start[] = {
#define IOCTL_TABLE_END \
};
IOCTL_TABLE_START
#define DECLARES
#include "compat_ioctl.c"
#include <linux/compat_ioctl.h>
IOCTL_TABLE_END
int ioctl_table_size = ARRAY_SIZE(ioctl_start);

3
arch/mips/kernel/Makefile
View File

@ -50,7 +50,7 @@ obj-$(CONFIG_MIPS_BOARDS_GEN) += irq-msc01.o
obj-$(CONFIG_32BIT) += scall32-o32.o
obj-$(CONFIG_64BIT) += scall64-64.o
obj-$(CONFIG_BINFMT_IRIX) += binfmt_irix.o
obj-$(CONFIG_MIPS32_COMPAT) += ioctl32.o linux32.o signal32.o
obj-$(CONFIG_MIPS32_COMPAT) += linux32.o signal32.o
obj-$(CONFIG_MIPS32_N32) += binfmt_elfn32.o scall64-n32.o signal_n32.o
obj-$(CONFIG_MIPS32_O32) += binfmt_elfo32.o scall64-o32.o ptrace32.o
@ -60,6 +60,5 @@ obj-$(CONFIG_PROC_FS) += proc.o
obj-$(CONFIG_64BIT) += cpu-bugs64.o
CFLAGS_cpu-bugs64.o = $(shell if $(CC) $(CFLAGS) -Wa,-mdaddi -c -o /dev/null -xc /dev/null >/dev/null 2>&1; then echo "-DHAVE_AS_SET_DADDI"; fi)
CFLAGS_ioctl32.o += -Ifs/
EXTRA_AFLAGS := $(CFLAGS)

50
arch/mips/kernel/ioctl32.c
View File

@ -1,50 +0,0 @@
/*
* ioctl32.c: Conversion between 32bit and 64bit native ioctls.
*
* Copyright (C) 2000 Silicon Graphics, Inc.
* Written by Ulf Carlsson (ulfc@engr.sgi.com)
* Copyright (C) 2000, 2004 Ralf Baechle
* Copyright (C) 2002, 2003 Maciej W. Rozycki
*/
#define INCLUDES
#include "compat_ioctl.c"
#include <linux/config.h>
#include <linux/types.h>
#include <linux/compat.h>
#include <linux/ioctl32.h>
#include <linux/syscalls.h>
#ifdef CONFIG_SIBYTE_TBPROF
#include <asm/sibyte/trace_prof.h>
#endif
#define A(__x) ((unsigned long)(__x))
long sys_ioctl(unsigned int fd, unsigned int cmd, unsigned long arg);
#define CODE
#include "compat_ioctl.c"
#define COMPATIBLE_IOCTL(cmd) HANDLE_IOCTL((cmd),sys_ioctl)
#define HANDLE_IOCTL(cmd,handler) { (cmd), (ioctl_trans_handler_t)(handler), NULL },
#define IOCTL_TABLE_START \
struct ioctl_trans ioctl_start[] = {
#define IOCTL_TABLE_END \
};
IOCTL_TABLE_START
#include <linux/compat_ioctl.h>
#define DECLARES
#include "compat_ioctl.c"
/*HANDLE_IOCTL(RTC_IRQP_READ, w_long)
COMPATIBLE_IOCTL(RTC_IRQP_SET)
HANDLE_IOCTL(RTC_EPOCH_READ, w_long)
COMPATIBLE_IOCTL(RTC_EPOCH_SET)
*/
IOCTL_TABLE_END
int ioctl_table_size = ARRAY_SIZE(ioctl_start);

3
arch/parisc/kernel/Makefile
View File

@ -6,7 +6,6 @@ extra-y := init_task.o head.o vmlinux.lds
AFLAGS_entry.o := -traditional
AFLAGS_pacache.o := -traditional
CFLAGS_ioctl32.o := -Ifs/
obj-y := cache.o pacache.o setup.o traps.o time.o irq.o \
pa7300lc.o syscall.o entry.o sys_parisc.o firmware.o \
@ -19,6 +18,6 @@ obj-$(CONFIG_SMP) += smp.o
obj-$(CONFIG_PA11) += pci-dma.o
obj-$(CONFIG_PCI) += pci.o
obj-$(CONFIG_MODULES) += module.o
obj-$(CONFIG_64BIT) += binfmt_elf32.o sys_parisc32.o ioctl32.o signal32.o
obj-$(CONFIG_64BIT) += binfmt_elf32.o sys_parisc32.o signal32.o
# only supported for PCX-W/U in 64-bit mode at the moment
obj-$(CONFIG_64BIT) += perf.o perf_asm.o

41
arch/parisc/kernel/ioctl32.c
View File

@ -1,41 +0,0 @@
/* $Id: ioctl32.c,v 1.5 2002/10/18 00:21:43 varenet Exp $
* ioctl32.c: Conversion between 32bit and 64bit native ioctls.
*
* Copyright (C) 1997-2000 Jakub Jelinek (jakub@redhat.com)
* Copyright (C) 1998 Eddie C. Dost (ecd@skynet.be)
*
* These routines maintain argument size conversion between 32bit and 64bit
* ioctls.
*/
#include <linux/syscalls.h>
#define INCLUDES
#include "compat_ioctl.c"
#include <asm/perf.h>
#include <asm/ioctls.h>
#define CODE
#include "compat_ioctl.c"
#define HANDLE_IOCTL(cmd, handler) { cmd, (ioctl_trans_handler_t)handler, NULL },
#define COMPATIBLE_IOCTL(cmd) HANDLE_IOCTL(cmd, sys_ioctl)
#define IOCTL_TABLE_START struct ioctl_trans ioctl_start[] = {
#define IOCTL_TABLE_END };
IOCTL_TABLE_START
#include <linux/compat_ioctl.h>
#define DECLARES
#include "compat_ioctl.c"
/* And these ioctls need translation */
HANDLE_IOCTL(SIOCGPPPSTATS, dev_ifsioc)
HANDLE_IOCTL(SIOCGPPPCSTATS, dev_ifsioc)
HANDLE_IOCTL(SIOCGPPPVER, dev_ifsioc)
IOCTL_TABLE_END
int ioctl_table_size = ARRAY_SIZE(ioctl_start);

3
arch/powerpc/kernel/Makefile
View File

@ -4,7 +4,6 @@
ifeq ($(CONFIG_PPC64),y)
EXTRA_CFLAGS += -mno-minimal-toc
CFLAGS_ioctl32.o += -Ifs/
endif
ifeq ($(CONFIG_PPC32),y)
CFLAGS_prom_init.o += -fPIC
@ -16,7 +15,7 @@ obj-y := semaphore.o cputable.o ptrace.o syscalls.o \
obj-y += vdso32/
obj-$(CONFIG_PPC64) += setup_64.o binfmt_elf32.o sys_ppc32.o \
signal_64.o ptrace32.o systbl.o \
paca.o ioctl32.o cpu_setup_power4.o \
paca.o cpu_setup_power4.o \
firmware.o sysfs.o idle_64.o
obj-$(CONFIG_PPC64) += vdso64/
obj-$(CONFIG_ALTIVEC) += vecemu.o vector.o

45
arch/powerpc/kernel/ioctl32.c
View File

@ -1,45 +0,0 @@
/*
* ioctl32.c: Conversion between 32bit and 64bit native ioctls.
*
* Based on sparc64 ioctl32.c by:
*
* Copyright (C) 1997-2000 Jakub Jelinek (jakub@redhat.com)
* Copyright (C) 1998 Eddie C. Dost (ecd@skynet.be)
*
* ppc64 changes:
*
* Copyright (C) 2000 Ken Aaker (kdaaker@rchland.vnet.ibm.com)
* Copyright (C) 2001 Anton Blanchard (antonb@au.ibm.com)
*
* These routines maintain argument size conversion between 32bit and 64bit
* ioctls.
*
* 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.
*/
#define INCLUDES
#include "compat_ioctl.c"
#include <linux/syscalls.h>
#define CODE
#include "compat_ioctl.c"
#define HANDLE_IOCTL(cmd,handler) { cmd, (ioctl_trans_handler_t)handler, NULL },
#define COMPATIBLE_IOCTL(cmd) HANDLE_IOCTL(cmd,sys_ioctl)
#define IOCTL_TABLE_START \
struct ioctl_trans ioctl_start[] = {
#define IOCTL_TABLE_END \
};
IOCTL_TABLE_START
#include <linux/compat_ioctl.h>
#define DECLARES
#include "compat_ioctl.c"
IOCTL_TABLE_END
int ioctl_table_size = ARRAY_SIZE(ioctl_start);

3
arch/s390/kernel/Makefile
View File

@ -17,8 +17,7 @@ obj-$(CONFIG_MODULES) += s390_ksyms.o module.o
obj-$(CONFIG_SMP) += smp.o
obj-$(CONFIG_COMPAT) += compat_linux.o compat_signal.o \
compat_ioctl.o compat_wrapper.o \
compat_exec_domain.o
compat_wrapper.o compat_exec_domain.o
obj-$(CONFIG_BINFMT_ELF32) += binfmt_elf32.o
obj-$(CONFIG_VIRT_TIMER) += vtime.o

47
arch/s390/kernel/compat_ioctl.c
View File

@ -1,47 +0,0 @@
/*
* ioctl32.c: Conversion between 32bit and 64bit native ioctls.
*
* S390 version
* Copyright (C) 2000-2003 IBM Deutschland Entwicklung GmbH, IBM Corporation
* Author(s): Gerhard Tonn (ton@de.ibm.com)
* Arnd Bergmann (arndb@de.ibm.com)
*
* Original implementation from 32-bit Sparc compat code which is
* Copyright (C) 2000 Silicon Graphics, Inc.
* Written by Ulf Carlsson (ulfc@engr.sgi.com)
*/
#include "compat_linux.h"
#define INCLUDES
#define CODE
#include "../../../fs/compat_ioctl.c"
#include <asm/dasd.h>
#include <asm/cmb.h>
#include <asm/tape390.h>
#include <asm/ccwdev.h>
#include "../../../drivers/s390/char/raw3270.h"
static int do_ioctl32_pointer(unsigned int fd, unsigned int cmd,
unsigned long arg, struct file *f)
{
return sys_ioctl(fd, cmd, (unsigned long)compat_ptr(arg));
}
static int do_ioctl32_ulong(unsigned int fd, unsigned int cmd,
unsigned long arg, struct file *f)
{
return sys_ioctl(fd, cmd, arg);
}
#define COMPATIBLE_IOCTL(cmd) HANDLE_IOCTL((cmd),(ioctl_trans_handler_t)do_ioctl32_pointer)
#define ULONG_IOCTL(cmd) HANDLE_IOCTL((cmd),(ioctl_trans_handler_t)do_ioctl32_ulong)
#define HANDLE_IOCTL(cmd,handler) { (cmd), (ioctl_trans_handler_t)(handler), NULL },
struct ioctl_trans ioctl_start[] = {
/* architecture independent ioctls */
#include <linux/compat_ioctl.h>
#define DECLARES
#include "../../../fs/compat_ioctl.c"
};
int ioctl_table_size = ARRAY_SIZE(ioctl_start);

4
arch/sparc64/kernel/Makefile
View File

@ -16,7 +16,7 @@ obj-y := process.o setup.o cpu.o idprom.o \
obj-$(CONFIG_PCI) += ebus.o isa.o pci_common.o pci_iommu.o \
pci_psycho.o pci_sabre.o pci_schizo.o
obj-$(CONFIG_SMP) += smp.o trampoline.o
obj-$(CONFIG_SPARC32_COMPAT) += sys32.o sys_sparc32.o signal32.o ioctl32.o
obj-$(CONFIG_SPARC32_COMPAT) += sys32.o sys_sparc32.o signal32.o
obj-$(CONFIG_BINFMT_ELF32) += binfmt_elf32.o
obj-$(CONFIG_BINFMT_AOUT32) += binfmt_aout32.o
obj-$(CONFIG_MODULES) += module.o
@ -40,5 +40,3 @@ endif
head.o: head.S ttable.S itlb_base.S dtlb_base.S dtlb_backend.S dtlb_prot.S \
etrap.S rtrap.S winfixup.S entry.S
CFLAGS_ioctl32.o += -Ifs/

39
arch/sparc64/kernel/ioctl32.c
View File

@ -1,39 +0,0 @@
/* $Id: ioctl32.c,v 1.136 2002/01/14 09:49:52 davem Exp $
* ioctl32.c: Conversion between 32bit and 64bit native ioctls.
*
* Copyright (C) 1997-2000 Jakub Jelinek (jakub@redhat.com)
* Copyright (C) 1998 Eddie C. Dost (ecd@skynet.be)
* Copyright (C) 2003 Pavel Machek (pavel@suse.cz)
*
* These routines maintain argument size conversion between 32bit and 64bit
* ioctls.
*/
#define INCLUDES
#include "compat_ioctl.c"
#include <linux/syscalls.h>
#define CODE
#include "compat_ioctl.c"
#define COMPATIBLE_IOCTL(cmd) HANDLE_IOCTL((cmd),sys_ioctl)
#define HANDLE_IOCTL(cmd,handler) { (cmd), (ioctl_trans_handler_t)(handler), NULL },
#define IOCTL_TABLE_START \
struct ioctl_trans ioctl_start[] = {
#define IOCTL_TABLE_END \
};
IOCTL_TABLE_START
#include <linux/compat_ioctl.h>
#define DECLARES
#include "compat_ioctl.c"
#if 0
HANDLE_IOCTL(RTC32_IRQP_READ, do_rtc_ioctl)
HANDLE_IOCTL(RTC32_IRQP_SET, do_rtc_ioctl)
HANDLE_IOCTL(RTC32_EPOCH_READ, do_rtc_ioctl)
HANDLE_IOCTL(RTC32_EPOCH_SET, do_rtc_ioctl)
#endif
/* take care of sizeof(sizeof()) breakage */
IOCTL_TABLE_END
int ioctl_table_size = ARRAY_SIZE(ioctl_start);

4
arch/x86_64/ia32/Makefile
View File

@ -2,8 +2,7 @@
# Makefile for the ia32 kernel emulation subsystem.
#
obj-$(CONFIG_IA32_EMULATION) := ia32entry.o sys_ia32.o ia32_ioctl.o \
ia32_signal.o tls32.o \
obj-$(CONFIG_IA32_EMULATION) := ia32entry.o sys_ia32.o ia32_signal.o tls32.o \
ia32_binfmt.o fpu32.o ptrace32.o syscall32.o syscall32_syscall.o
sysv-$(CONFIG_SYSVIPC) := ipc32.o
@ -29,4 +28,3 @@ $(obj)/vsyscall-%.so: $(src)/vsyscall.lds $(obj)/vsyscall-%.o FORCE
AFLAGS_vsyscall-sysenter.o = -m32
AFLAGS_vsyscall-syscall.o = -m32
CFLAGS_ia32_ioctl.o += -Ifs/

32
arch/x86_64/ia32/ia32_ioctl.c
View File

@ -1,32 +0,0 @@
/* $Id: ia32_ioctl.c,v 1.25 2002/10/11 07:17:06 ak Exp $
* ioctl32.c: Conversion between 32bit and 64bit native ioctls.
*
* Copyright (C) 1997-2000 Jakub Jelinek (jakub@redhat.com)
* Copyright (C) 1998 Eddie C. Dost (ecd@skynet.be)
* Copyright (C) 2001,2002 Andi Kleen, SuSE Labs
*
* These routines maintain argument size conversion between 32bit and 64bit
* ioctls.
*/
#define INCLUDES
#include <linux/syscalls.h>
#include "compat_ioctl.c"
#include <asm/ia32.h>
#define CODE
#include "compat_ioctl.c"
#define HANDLE_IOCTL(cmd,handler) { (cmd), (ioctl_trans_handler_t)(handler) },
#define COMPATIBLE_IOCTL(cmd) HANDLE_IOCTL(cmd,sys_ioctl)
struct ioctl_trans ioctl_start[] = {
#include <linux/compat_ioctl.h>
#define DECLARES
#include "compat_ioctl.c"
/* take care of sizeof(sizeof()) breakage */
};
int ioctl_table_size = ARRAY_SIZE(ioctl_start);

2
fs/Makefile
View File

@ -14,7 +14,7 @@ obj-y := open.o read_write.o file_table.o buffer.o bio.o super.o \
obj-$(CONFIG_INOTIFY) += inotify.o
obj-$(CONFIG_EPOLL) += eventpoll.o
obj-$(CONFIG_COMPAT) += compat.o
obj-$(CONFIG_COMPAT) += compat.o compat_ioctl.o
nfsd-$(CONFIG_NFSD) := nfsctl.o
obj-y += $(nfsd-y) $(nfsd-m)

37
fs/compat_ioctl.c
View File

@ -10,7 +10,6 @@
* ioctls.
*/
#ifdef INCLUDES
#include <linux/config.h>
#include <linux/types.h>
#include <linux/compat.h>
@ -81,13 +80,9 @@
#include <linux/capi.h>
#include <scsi/scsi.h>
/* Ugly hack. */
#undef __KERNEL__
#include <scsi/scsi_ioctl.h>
#define __KERNEL__
#include <scsi/sg.h>
#include <asm/types.h>
#include <asm/uaccess.h>
#include <linux/ethtool.h>
#include <linux/mii.h>
@ -95,7 +90,6 @@
#include <linux/watchdog.h>
#include <linux/dm-ioctl.h>
#include <asm/module.h>
#include <linux/soundcard.h>
#include <linux/lp.h>
#include <linux/ppdev.h>
@ -128,11 +122,6 @@
#include <linux/dvb/frontend.h>
#include <linux/dvb/video.h>
#undef INCLUDES
#endif
#ifdef CODE
/* Aiee. Someone does not find a difference between int and long */
#define EXT2_IOC32_GETFLAGS _IOR('f', 1, int)
#define EXT2_IOC32_SETFLAGS _IOW('f', 2, int)
@ -148,6 +137,12 @@
#define EXT2_IOC32_GETVERSION _IOR('v', 1, int)
#define EXT2_IOC32_SETVERSION _IOW('v', 2, int)
static int do_ioctl32_pointer(unsigned int fd, unsigned int cmd,
unsigned long arg, struct file *f)
{
return sys_ioctl(fd, cmd, (unsigned long)compat_ptr(arg));
}
static int w_long(unsigned int fd, unsigned int cmd, unsigned long arg)
{
mm_segment_t old_fs = get_fs();
@ -2705,10 +2700,20 @@ static int do_ncp_setprivatedata(unsigned int fd, unsigned int cmd, unsigned lon
}
#endif
#undef CODE
#endif
#define HANDLE_IOCTL(cmd,handler) \
{ (cmd), (ioctl_trans_handler_t)(handler) },
#ifdef DECLARES
/* pointer to compatible structure or no argument */
#define COMPATIBLE_IOCTL(cmd) \
{ (cmd), do_ioctl32_pointer },
/* argument is an unsigned long integer, not a pointer */
#define ULONG_IOCTL(cmd) \
{ (cmd), (ioctl_trans_handler_t)sys_ioctl },
struct ioctl_trans ioctl_start[] = {
#include <linux/compat_ioctl.h>
HANDLE_IOCTL(MEMREADOOB32, mtd_rw_oob)
HANDLE_IOCTL(MEMWRITEOOB32, mtd_rw_oob)
#ifdef CONFIG_NET
@ -2921,6 +2926,6 @@ HANDLE_IOCTL(DMX_GET_EVENT, do_dmx_get_event)
HANDLE_IOCTL(VIDEO_GET_EVENT, do_video_get_event)
HANDLE_IOCTL(VIDEO_STILLPICTURE, do_video_stillpicture)
HANDLE_IOCTL(VIDEO_SET_SPU_PALETTE, do_video_set_spu_palette)
};
#undef DECLARES
#endif
int ioctl_table_size = ARRAY_SIZE(ioctl_start);

8
include/linux/compat_ioctl.h
View File

@ -2,14 +2,6 @@
* compatible types passed or none at all... Please include
* only stuff that is compatible on *all architectures*.
*/
#ifndef COMPATIBLE_IOCTL /* pointer to compatible structure or no argument */
#define COMPATIBLE_IOCTL(cmd) HANDLE_IOCTL((cmd),(ioctl_trans_handler_t)sys_ioctl)
#endif
#ifndef ULONG_IOCTL /* argument is an unsigned long integer, not a pointer */
#define ULONG_IOCTL(cmd) HANDLE_IOCTL((cmd),(ioctl_trans_handler_t)sys_ioctl)
#endif
COMPATIBLE_IOCTL(0x4B50) /* KDGHWCLK - not in the kernel, but don't complain */
COMPATIBLE_IOCTL(0x4B51) /* KDSHWCLK - not in the kernel, but don't complain */