[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>

14 files changed, 7 insertions, 316 deletions

diff --git a/arch/ia64/ia32/Makefile b/arch/ia64/ia32/Makefile
index 2ed90da81166..61cb60affd95 100644
--- a/arch/ia64/ia32/Makefile
+++ b/arch/ia64/ia32/Makefile
@@ -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
diff --git a/arch/ia64/ia32/ia32_ioctl.c b/arch/ia64/ia32/ia32_ioctl.c
deleted file mode 100644
index 88739394f6df..000000000000
--- a/arch/ia64/ia32/ia32_ioctl.c
+++ /dev/null
@@ -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);
diff --git a/arch/mips/kernel/Makefile b/arch/mips/kernel/Makefile
index 72f2126ad19d..f36c4f20ee8a 100644
--- a/arch/mips/kernel/Makefile
+++ b/arch/mips/kernel/Makefile
@@ -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)
diff --git a/arch/mips/kernel/ioctl32.c b/arch/mips/kernel/ioctl32.c
deleted file mode 100644
index 9ea1fc748864..000000000000
--- a/arch/mips/kernel/ioctl32.c
+++ /dev/null
@@ -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);
diff --git a/arch/parisc/kernel/Makefile b/arch/parisc/kernel/Makefile
index 171f9c239f60..27827bc3717e 100644
--- a/arch/parisc/kernel/Makefile
+++ b/arch/parisc/kernel/Makefile
@@ -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
diff --git a/arch/parisc/kernel/ioctl32.c b/arch/parisc/kernel/ioctl32.c
deleted file mode 100644
index 805f31486cf9..000000000000
--- a/arch/parisc/kernel/ioctl32.c
+++ /dev/null
@@ -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);
diff --git a/arch/powerpc/kernel/Makefile b/arch/powerpc/kernel/Makefile
index 6e03b595b6c8..17ed5018288b 100644
--- a/arch/powerpc/kernel/Makefile
+++ b/arch/powerpc/kernel/Makefile
@@ -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-$(CONFIG_ALTIVEC)		+= vecemu.o vector.o
diff --git a/arch/powerpc/kernel/ioctl32.c b/arch/powerpc/kernel/ioctl32.c
deleted file mode 100644
index 0fa3d27fef01..000000000000
--- a/arch/powerpc/kernel/ioctl32.c
+++ /dev/null
@@ -1,45 +0,0 @@
-/*
- * ioctl32.c: Conversion between 32bit and 64bit native ioctls.
- *
- * Based on sparc64 ioctl32.c by:
- *
- * Copyright (C) 1997-2000  Jakub Jelinek  (jakub@redhat.com)
- * Copyright (C) 1998  Eddie C. Dost  (ecd@skynet.be)
- *
- * ppc64 changes:
- *
- * Copyright (C) 2000  Ken Aaker (kdaaker@rchland.vnet.ibm.com)
- * Copyright (C) 2001  Anton Blanchard (antonb@au.ibm.com)
- *
- * These routines maintain argument size conversion between 32bit and 64bit
- * ioctls.
- *
- * This program is free software; you can redistribute it and/or
- * modify it under the terms of the GNU General Public License
- * as published by the Free Software Foundation; either version
- * 2 of the License, or (at your option) any later version.
- */
-
-#define INCLUDES
-#include "compat_ioctl.c"
-#include <linux/syscalls.h>
-
-#define CODE
-#include "compat_ioctl.c"
-
-#define HANDLE_IOCTL(cmd,handler) { cmd, (ioctl_trans_handler_t)handler, NULL },
-#define COMPATIBLE_IOCTL(cmd) HANDLE_IOCTL(cmd,sys_ioctl)
-
-#define IOCTL_TABLE_START \
-	struct ioctl_trans ioctl_start[] = {
-#define IOCTL_TABLE_END \
-	};
-
-IOCTL_TABLE_START
-#include <linux/compat_ioctl.h>
-#define DECLARES
-#include "compat_ioctl.c"
-
-IOCTL_TABLE_END
-
-int ioctl_table_size = ARRAY_SIZE(ioctl_start);
diff --git a/arch/s390/kernel/Makefile b/arch/s390/kernel/Makefile
index 4865e4b49464..9269b5788fac 100644
--- a/arch/s390/kernel/Makefile
+++ b/arch/s390/kernel/Makefile
@@ -17,8 +17,7 @@ obj-$(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-$(CONFIG_VIRT_TIMER)	+= vtime.o
diff --git a/arch/s390/kernel/compat_ioctl.c b/arch/s390/kernel/compat_ioctl.c
deleted file mode 100644
index d716b1768c99..000000000000
--- a/arch/s390/kernel/compat_ioctl.c
+++ /dev/null
@@ -1,47 +0,0 @@
-/*
- * ioctl32.c: Conversion between 32bit and 64bit native ioctls.
- *
- *  S390 version
- *    Copyright (C) 2000-2003 IBM Deutschland Entwicklung GmbH, IBM Corporation
- *    Author(s): Gerhard Tonn (ton@de.ibm.com)
- *               Arnd Bergmann (arndb@de.ibm.com)
- *
- * Original implementation from 32-bit Sparc compat code which is
- * Copyright (C) 2000 Silicon Graphics, Inc.
- * Written by Ulf Carlsson (ulfc@engr.sgi.com) 
- */
-
-#include "compat_linux.h"
-#define INCLUDES
-#define CODE
-#include "../../../fs/compat_ioctl.c"
-#include <asm/dasd.h>
-#include <asm/cmb.h>
-#include <asm/tape390.h>
-#include <asm/ccwdev.h>
-#include "../../../drivers/s390/char/raw3270.h"
-
-static int do_ioctl32_pointer(unsigned int fd, unsigned int cmd,
-				unsigned long arg, struct file *f)
-{
-	return sys_ioctl(fd, cmd, (unsigned long)compat_ptr(arg));
-}
-
-static int do_ioctl32_ulong(unsigned int fd, unsigned int cmd,
-				unsigned long arg, struct file *f)
-{
-	return sys_ioctl(fd, cmd, arg);
-}
-
-#define COMPATIBLE_IOCTL(cmd)		HANDLE_IOCTL((cmd),(ioctl_trans_handler_t)do_ioctl32_pointer)
-#define ULONG_IOCTL(cmd)		HANDLE_IOCTL((cmd),(ioctl_trans_handler_t)do_ioctl32_ulong)
-#define HANDLE_IOCTL(cmd,handler)	{ (cmd), (ioctl_trans_handler_t)(handler), NULL },
-
-struct ioctl_trans ioctl_start[] = {
-/* architecture independent ioctls */
-#include <linux/compat_ioctl.h>
-#define DECLARES
-#include "../../../fs/compat_ioctl.c"
-};
-
-int ioctl_table_size = ARRAY_SIZE(ioctl_start);
diff --git a/arch/sparc64/kernel/Makefile b/arch/sparc64/kernel/Makefile
index 6f00ab8b9d23..83d67eb18895 100644
--- a/arch/sparc64/kernel/Makefile
+++ b/arch/sparc64/kernel/Makefile
@@ -16,7 +16,7 @@ obj-y		:= process.o setup.o cpu.o idprom.o \
 obj-$(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/
diff --git a/arch/sparc64/kernel/ioctl32.c b/arch/sparc64/kernel/ioctl32.c
deleted file mode 100644
index 196b208665a2..000000000000
--- a/arch/sparc64/kernel/ioctl32.c
+++ /dev/null
@@ -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);
diff --git a/arch/x86_64/ia32/Makefile b/arch/x86_64/ia32/Makefile
index f76217d8f579..051608d55920 100644
--- a/arch/x86_64/ia32/Makefile
+++ b/arch/x86_64/ia32/Makefile
@@ -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/
diff --git a/arch/x86_64/ia32/ia32_ioctl.c b/arch/x86_64/ia32/ia32_ioctl.c
deleted file mode 100644
index e11cc5699352..000000000000
--- a/arch/x86_64/ia32/ia32_ioctl.c
+++ /dev/null
@@ -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);
-