diff --git a/arch/arm/include/asm/unistd.h b/arch/arm/include/asm/unistd.h
index e6eeb2d2995..dd2bf53000f 100644
--- a/arch/arm/include/asm/unistd.h
+++ b/arch/arm/include/asm/unistd.h
@@ -448,6 +448,7 @@
 
 #if !defined(CONFIG_AEABI) || defined(CONFIG_OABI_COMPAT)
 #define __ARCH_WANT_SYS_TIME
+#define __ARCH_WANT_SYS_IPC
 #define __ARCH_WANT_SYS_OLDUMOUNT
 #define __ARCH_WANT_SYS_ALARM
 #define __ARCH_WANT_SYS_UTIME
diff --git a/arch/arm/kernel/sys_arm.c b/arch/arm/kernel/sys_arm.c
index a2e0e6f2ea7..4350f75e578 100644
--- a/arch/arm/kernel/sys_arm.c
+++ b/arch/arm/kernel/sys_arm.c
@@ -28,88 +28,6 @@
 #include <linux/ipc.h>
 #include <linux/uaccess.h>
 
-#if !defined(CONFIG_AEABI) || defined(CONFIG_OABI_COMPAT)
-/*
- * sys_ipc() is the de-multiplexer for the SysV IPC calls..
- *
- * This is really horribly ugly.
- */
-asmlinkage int sys_ipc(uint call, int first, int second, int third,
-		       void __user *ptr, long fifth)
-{
-	int version, ret;
-
-	version = call >> 16; /* hack for backward compatibility */
-	call &= 0xffff;
-
-	switch (call) {
-	case SEMOP:
-		return sys_semtimedop (first, (struct sembuf __user *)ptr, second, NULL);
-	case SEMTIMEDOP:
-		return sys_semtimedop(first, (struct sembuf __user *)ptr, second,
-					(const struct timespec __user *)fifth);
-
-	case SEMGET:
-		return sys_semget (first, second, third);
-	case SEMCTL: {
-		union semun fourth;
-		if (!ptr)
-			return -EINVAL;
-		if (get_user(fourth.__pad, (void __user * __user *) ptr))
-			return -EFAULT;
-		return sys_semctl (first, second, third, fourth);
-	}
-
-	case MSGSND:
-		return sys_msgsnd(first, (struct msgbuf __user *) ptr, 
-				  second, third);
-	case MSGRCV:
-		switch (version) {
-		case 0: {
-			struct ipc_kludge tmp;
-			if (!ptr)
-				return -EINVAL;
-			if (copy_from_user(&tmp,(struct ipc_kludge __user *)ptr,
-					   sizeof (tmp)))
-				return -EFAULT;
-			return sys_msgrcv (first, tmp.msgp, second,
-					   tmp.msgtyp, third);
-		}
-		default:
-			return sys_msgrcv (first,
-					   (struct msgbuf __user *) ptr,
-					   second, fifth, third);
-		}
-	case MSGGET:
-		return sys_msgget ((key_t) first, second);
-	case MSGCTL:
-		return sys_msgctl(first, second, (struct msqid_ds __user *)ptr);
-
-	case SHMAT:
-		switch (version) {
-		default: {
-			ulong raddr;
-			ret = do_shmat(first, (char __user *)ptr, second, &raddr);
-			if (ret)
-				return ret;
-			return put_user(raddr, (ulong __user *)third);
-		}
-		case 1: /* Of course, we don't support iBCS2! */
-			return -EINVAL;
-		}
-	case SHMDT: 
-		return sys_shmdt ((char __user *)ptr);
-	case SHMGET:
-		return sys_shmget (first, second, third);
-	case SHMCTL:
-		return sys_shmctl (first, second,
-				   (struct shmid_ds __user *) ptr);
-	default:
-		return -ENOSYS;
-	}
-}
-#endif
-
 /* Fork a new task - this creates a new program thread.
  * This is called indirectly via a small wrapper
  */
diff --git a/arch/arm/kernel/sys_oabi-compat.c b/arch/arm/kernel/sys_oabi-compat.c
index d59a0cd537f..33ff678e32f 100644
--- a/arch/arm/kernel/sys_oabi-compat.c
+++ b/arch/arm/kernel/sys_oabi-compat.c
@@ -346,9 +346,6 @@ asmlinkage long sys_oabi_semop(int semid, struct oabi_sembuf __user *tsops,
 	return sys_oabi_semtimedop(semid, tsops, nsops, NULL);
 }
 
-extern asmlinkage int sys_ipc(uint call, int first, int second, int third,
-			      void __user *ptr, long fifth);
-
 asmlinkage int sys_oabi_ipc(uint call, int first, int second, int third,
 			    void __user *ptr, long fifth)
 {
diff --git a/arch/cris/include/asm/unistd.h b/arch/cris/include/asm/unistd.h
index 8cffd22623f..f6fad83b3a8 100644
--- a/arch/cris/include/asm/unistd.h
+++ b/arch/cris/include/asm/unistd.h
@@ -352,6 +352,7 @@
 #define __ARCH_WANT_STAT64
 #define __ARCH_WANT_SYS_ALARM
 #define __ARCH_WANT_SYS_GETHOSTNAME
+#define __ARCH_WANT_SYS_IPC
 #define __ARCH_WANT_SYS_PAUSE
 #define __ARCH_WANT_SYS_SGETMASK
 #define __ARCH_WANT_SYS_SIGNAL
diff --git a/arch/cris/kernel/sys_cris.c b/arch/cris/kernel/sys_cris.c
index 22f9d6cd947..7aa036ec78f 100644
--- a/arch/cris/kernel/sys_cris.c
+++ b/arch/cris/kernel/sys_cris.c
@@ -33,81 +33,3 @@ sys_mmap2(unsigned long addr, unsigned long len, unsigned long prot,
 	/* bug(?): 8Kb pages here */
         return sys_mmap_pgoff(addr, len, prot, flags, fd, pgoff);
 }
-
-/*
- * sys_ipc() is the de-multiplexer for the SysV IPC calls..
- *
- * This is really horribly ugly. (same as arch/i386)
- */
-
-asmlinkage int sys_ipc (uint call, int first, int second,
-			int third, void __user *ptr, long fifth)
-{
-	int version, ret;
-
-	version = call >> 16; /* hack for backward compatibility */
-	call &= 0xffff;
-
-	switch (call) {
-	case SEMOP:
-		return sys_semtimedop (first, (struct sembuf __user *)ptr, second, NULL);
-	case SEMTIMEDOP:
-		return sys_semtimedop(first, (struct sembuf __user *)ptr, second,
-					(const struct timespec __user *)fifth);
-
-	case SEMGET:
-		return sys_semget (first, second, third);
-	case SEMCTL: {
-		union semun fourth;
-		if (!ptr)
-			return -EINVAL;
-		if (get_user(fourth.__pad, (void * __user *) ptr))
-			return -EFAULT;
-		return sys_semctl (first, second, third, fourth);
-	}
-
-	case MSGSND:
-		return sys_msgsnd (first, (struct msgbuf __user *) ptr, 
-				   second, third);
-	case MSGRCV:
-		switch (version) {
-		case 0: {
-			struct ipc_kludge tmp;
-			if (!ptr)
-				return -EINVAL;
-			
-			if (copy_from_user(&tmp,
-					   (struct ipc_kludge __user *) ptr, 
-					   sizeof (tmp)))
-				return -EFAULT;
-			return sys_msgrcv (first, tmp.msgp, second,
-					   tmp.msgtyp, third);
-		}
-		default:
-			return sys_msgrcv (first,
-					   (struct msgbuf __user *) ptr,
-					   second, fifth, third);
-		}
-	case MSGGET:
-		return sys_msgget ((key_t) first, second);
-	case MSGCTL:
-		return sys_msgctl (first, second, (struct msqid_ds __user *) ptr);
-
-	case SHMAT: {
-                ulong raddr;
-                ret = do_shmat (first, (char __user *) ptr, second, &raddr);
-                if (ret)
-                        return ret;
-                return put_user (raddr, (ulong __user *) third);
-        }
-	case SHMDT: 
-		return sys_shmdt ((char __user *)ptr);
-	case SHMGET:
-		return sys_shmget (first, second, third);
-	case SHMCTL:
-		return sys_shmctl (first, second,
-				   (struct shmid_ds __user *) ptr);
-	default:
-		return -ENOSYS;
-	}
-}
diff --git a/arch/frv/include/asm/unistd.h b/arch/frv/include/asm/unistd.h
index be6ef0f5cd4..b28da499e22 100644
--- a/arch/frv/include/asm/unistd.h
+++ b/arch/frv/include/asm/unistd.h
@@ -354,6 +354,7 @@
 #define __ARCH_WANT_STAT64
 #define __ARCH_WANT_SYS_ALARM
 /* #define __ARCH_WANT_SYS_GETHOSTNAME */
+#define __ARCH_WANT_SYS_IPC
 #define __ARCH_WANT_SYS_PAUSE
 /* #define __ARCH_WANT_SYS_SGETMASK */
 /* #define __ARCH_WANT_SYS_SIGNAL */
diff --git a/arch/frv/kernel/sys_frv.c b/arch/frv/kernel/sys_frv.c
index 1d3d4c9e252..9c4980825bb 100644
--- a/arch/frv/kernel/sys_frv.c
+++ b/arch/frv/kernel/sys_frv.c
@@ -42,92 +42,3 @@ asmlinkage long sys_mmap2(unsigned long addr, unsigned long len,
 	return sys_mmap_pgoff(addr, len, prot, flags, fd,
 			      pgoff >> (PAGE_SHIFT - 12));
 }
-
-/*
- * sys_ipc() is the de-multiplexer for the SysV IPC calls..
- *
- * This is really horribly ugly.
- */
-asmlinkage long sys_ipc(unsigned long call,
-			unsigned long first,
-			unsigned long second,
-			unsigned long third,
-			void __user *ptr,
-			unsigned long fifth)
-{
-	int version, ret;
-
-	version = call >> 16; /* hack for backward compatibility */
-	call &= 0xffff;
-
-	switch (call) {
-	case SEMOP:
-		return sys_semtimedop(first, (struct sembuf __user *)ptr, second, NULL);
-	case SEMTIMEDOP:
-		return sys_semtimedop(first, (struct sembuf __user *)ptr, second,
-				      (const struct timespec __user *)fifth);
-
-	case SEMGET:
-		return sys_semget (first, second, third);
-	case SEMCTL: {
-		union semun fourth;
-		if (!ptr)
-			return -EINVAL;
-		if (get_user(fourth.__pad, (void * __user *) ptr))
-			return -EFAULT;
-		return sys_semctl (first, second, third, fourth);
-	}
-
-	case MSGSND:
-		return sys_msgsnd (first, (struct msgbuf __user *) ptr,
-				   second, third);
-	case MSGRCV:
-		switch (version) {
-		case 0: {
-			struct ipc_kludge tmp;
-			if (!ptr)
-				return -EINVAL;
-
-			if (copy_from_user(&tmp,
-					   (struct ipc_kludge __user *) ptr,
-					   sizeof (tmp)))
-				return -EFAULT;
-			return sys_msgrcv (first, tmp.msgp, second,
-					   tmp.msgtyp, third);
-		}
-		default:
-			return sys_msgrcv (first,
-					   (struct msgbuf __user *) ptr,
-					   second, fifth, third);
-		}
-	case MSGGET:
-		return sys_msgget ((key_t) first, second);
-	case MSGCTL:
-		return sys_msgctl (first, second, (struct msqid_ds __user *) ptr);
-
-	case SHMAT:
-		switch (version) {
-		default: {
-			ulong raddr;
-			ret = do_shmat (first, (char __user *) ptr, second, &raddr);
-			if (ret)
-				return ret;
-			return put_user (raddr, (ulong __user *) third);
-		}
-		case 1:	/* iBCS2 emulator entry point */
-			if (!segment_eq(get_fs(), get_ds()))
-				return -EINVAL;
-			/* The "(ulong *) third" is valid _only_ because of the kernel segment thing */
-			return do_shmat (first, (char __user *) ptr, second, (ulong *) third);
-		}
-	case SHMDT:
-		return sys_shmdt ((char __user *)ptr);
-	case SHMGET:
-		return sys_shmget (first, second, third);
-	case SHMCTL:
-		return sys_shmctl (first, second,
-				   (struct shmid_ds __user *) ptr);
-	default:
-		return -ENOSYS;
-	}
-}
diff --git a/arch/h8300/include/asm/unistd.h b/arch/h8300/include/asm/unistd.h
index 54dab472695..50f2c5a3659 100644
--- a/arch/h8300/include/asm/unistd.h
+++ b/arch/h8300/include/asm/unistd.h
@@ -336,6 +336,7 @@
 #define __ARCH_WANT_STAT64
 #define __ARCH_WANT_SYS_ALARM
 #define __ARCH_WANT_SYS_GETHOSTNAME
+#define __ARCH_WANT_SYS_IPC
 #define __ARCH_WANT_SYS_PAUSE
 #define __ARCH_WANT_SYS_SGETMASK
 #define __ARCH_WANT_SYS_SIGNAL
diff --git a/arch/h8300/kernel/sys_h8300.c b/arch/h8300/kernel/sys_h8300.c
index 1f13fd6e530..f9b3f44da69 100644
--- a/arch/h8300/kernel/sys_h8300.c
+++ b/arch/h8300/kernel/sys_h8300.c
@@ -26,94 +26,6 @@
 #include <asm/traps.h>
 #include <asm/unistd.h>
 
-/*
- * sys_ipc() is the de-multiplexer for the SysV IPC calls..
- *
- * This is really horribly ugly.
- */
-asmlinkage int sys_ipc (uint call, int first, int second,
-			int third, void *ptr, long fifth)
-{
-	int version, ret;
-
-	version = call >> 16; /* hack for backward compatibility */
-	call &= 0xffff;
-
-	if (call <= SEMCTL)
-		switch (call) {
-		case SEMOP:
-			return sys_semop (first, (struct sembuf *)ptr, second);
-		case SEMGET:
-			return sys_semget (first, second, third);
-		case SEMCTL: {
-			union semun fourth;
-			if (!ptr)
-				return -EINVAL;
-			if (get_user(fourth.__pad, (void **) ptr))
-				return -EFAULT;
-			return sys_semctl (first, second, third, fourth);
-			}
-		default:
-			return -EINVAL;
-		}
-	if (call <= MSGCTL) 
-		switch (call) {
-		case MSGSND:
-			return sys_msgsnd (first, (struct msgbuf *) ptr, 
-					  second, third);
-		case MSGRCV:
-			switch (version) {
-			case 0: {
-				struct ipc_kludge tmp;
-				if (!ptr)
-					return -EINVAL;
-				if (copy_from_user (&tmp,
-						    (struct ipc_kludge *)ptr,
-						    sizeof (tmp)))
-					return -EFAULT;
-				return sys_msgrcv (first, tmp.msgp, second,
-						   tmp.msgtyp, third);
-				}
-			default:
-				return sys_msgrcv (first,
-						   (struct msgbuf *) ptr,
-						   second, fifth, third);
-			}
-		case MSGGET:
-			return sys_msgget ((key_t) first, second);
-		case MSGCTL:
-			return sys_msgctl (first, second,
-					   (struct msqid_ds *) ptr);
-		default:
-			return -EINVAL;
-		}
-	if (call <= SHMCTL) 
-		switch (call) {
-		case SHMAT:
-			switch (version) {
-			default: {
-				ulong raddr;
-				ret = do_shmat (first, (char *) ptr,
-						 second, &raddr);
-				if (ret)
-					return ret;
-				return put_user (raddr, (ulong *) third);
-			}
-			}
-		case SHMDT: 
-			return sys_shmdt ((char *)ptr);
-		case SHMGET:
-			return sys_shmget (first, second, third);
-		case SHMCTL:
-			return sys_shmctl (first, second,
-					   (struct shmid_ds *) ptr);
-		default:
-			return -EINVAL;
-		}
-
-	return -EINVAL;
-}
-
 /* sys_cacheflush -- no support.  */
 asmlinkage int
 sys_cacheflush (unsigned long addr, int scope, int cache, unsigned long len)
diff --git a/arch/m32r/include/asm/unistd.h b/arch/m32r/include/asm/unistd.h
index cf701c93324..76125777483 100644
--- a/arch/m32r/include/asm/unistd.h
+++ b/arch/m32r/include/asm/unistd.h
@@ -339,6 +339,7 @@
 #define __ARCH_WANT_STAT64
 #define __ARCH_WANT_SYS_ALARM
 #define __ARCH_WANT_SYS_GETHOSTNAME
+#define __ARCH_WANT_SYS_IPC
 #define __ARCH_WANT_SYS_PAUSE
 #define __ARCH_WANT_SYS_TIME
 #define __ARCH_WANT_SYS_UTIME
diff --git a/arch/m32r/kernel/sys_m32r.c b/arch/m32r/kernel/sys_m32r.c
index d3c865c5a6b..cf2e7279ce9 100644
--- a/arch/m32r/kernel/sys_m32r.c
+++ b/arch/m32r/kernel/sys_m32r.c
@@ -76,87 +76,6 @@ asmlinkage int sys_tas(int __user *addr)
 	return oldval;
 }
 
-/*
- * sys_ipc() is the de-multiplexer for the SysV IPC calls..
- *
- * This is really horribly ugly.
- */
-asmlinkage int sys_ipc(uint call, int first, int second,
-		       int third, void __user *ptr, long fifth)
-{
-	int version, ret;
-
-	version = call >> 16; /* hack for backward compatibility */
-	call &= 0xffff;
-
-	switch (call) {
-	case SEMOP:
-		return sys_semtimedop(first, (struct sembuf __user *)ptr,
-				      second, NULL);
-	case SEMTIMEDOP:
-		return sys_semtimedop(first, (struct sembuf __user *)ptr,
-				      second, (const struct timespec __user *)fifth);
-	case SEMGET:
-		return sys_semget (first, second, third);
-	case SEMCTL: {
-		union semun fourth;
-		if (!ptr)
-			return -EINVAL;
-		if (get_user(fourth.__pad, (void __user * __user *) ptr))
-			return -EFAULT;
-		return sys_semctl (first, second, third, fourth);
-		}
-
-	case MSGSND:
-		return sys_msgsnd (first, (struct msgbuf __user *) ptr,
-				   second, third);
-	case MSGRCV:
-		switch (version) {
-		case 0: {
-			struct ipc_kludge tmp;
-			if (!ptr)
-				return -EINVAL;
-
-			if (copy_from_user(&tmp,
-					   (struct ipc_kludge __user *) ptr,
-					   sizeof (tmp)))
-				return -EFAULT;
-			return sys_msgrcv (first, tmp.msgp, second,
-					   tmp.msgtyp, third);
-			}
-		default:
-			return sys_msgrcv (first,
-					   (struct msgbuf __user *) ptr,
-					   second, fifth, third);
-		}
-	case MSGGET:
-		return sys_msgget ((key_t) first, second);
-	case MSGCTL:
-		return sys_msgctl (first, second,
-				   (struct msqid_ds __user *) ptr);
-	case SHMAT: {
-		ulong raddr;
-
-		if (!access_ok(VERIFY_WRITE, (ulong __user *) third,
-				      sizeof(ulong)))
-			return -EFAULT;
-		ret = do_shmat (first, (char __user *) ptr, second, &raddr);
-		if (ret)
-			return ret;
-		return put_user (raddr, (ulong __user *) third);
-		}
-	case SHMDT:
-		return sys_shmdt ((char __user *)ptr);
-	case SHMGET:
-		return sys_shmget (first, second, third);
-	case SHMCTL:
-		return sys_shmctl (first, second,
-				   (struct shmid_ds __user *) ptr);
-	default:
-		return -ENOSYS;
-	}
-}
-
 asmlinkage int sys_uname(struct old_utsname __user * name)
 {
 	int err;
diff --git a/arch/m68k/include/asm/unistd.h b/arch/m68k/include/asm/unistd.h
index d801154310e..60b15d0aa07 100644
--- a/arch/m68k/include/asm/unistd.h
+++ b/arch/m68k/include/asm/unistd.h
@@ -351,6 +351,7 @@
 #define __ARCH_WANT_STAT64
 #define __ARCH_WANT_SYS_ALARM
 #define __ARCH_WANT_SYS_GETHOSTNAME
+#define __ARCH_WANT_SYS_IPC
 #define __ARCH_WANT_SYS_PAUSE
 #define __ARCH_WANT_SYS_SGETMASK
 #define __ARCH_WANT_SYS_SIGNAL
diff --git a/arch/m68k/kernel/sys_m68k.c b/arch/m68k/kernel/sys_m68k.c
index 7b309e7b6ce..77896692eb0 100644
--- a/arch/m68k/kernel/sys_m68k.c
+++ b/arch/m68k/kernel/sys_m68k.c
@@ -46,87 +46,6 @@ asmlinkage long sys_mmap2(unsigned long addr, unsigned long len,
 	return sys_mmap_pgoff(addr, len, prot, flags, fd, pgoff);
 }
 
-/*
- * sys_ipc() is the de-multiplexer for the SysV IPC calls..
- *
- * This is really horribly ugly.
- */
-asmlinkage int sys_ipc (uint call, int first, int second,
-			int third, void __user *ptr, long fifth)
-{
-	int version, ret;
-
-	version = call >> 16; /* hack for backward compatibility */
-	call &= 0xffff;
-
-	if (call <= SEMCTL)
-		switch (call) {
-		case SEMOP:
-			return sys_semop (first, ptr, second);
-		case SEMGET:
-			return sys_semget (first, second, third);
-		case SEMCTL: {
-			union semun fourth;
-			if (!ptr)
-				return -EINVAL;
-			if (get_user(fourth.__pad, (void __user *__user *) ptr))
-				return -EFAULT;
-			return sys_semctl (first, second, third, fourth);
-			}
-		default:
-			return -ENOSYS;
-		}
-	if (call <= MSGCTL)
-		switch (call) {
-		case MSGSND:
-			return sys_msgsnd (first, ptr, second, third);
-		case MSGRCV:
-			switch (version) {
-			case 0: {
-				struct ipc_kludge tmp;
-				if (!ptr)
-					return -EINVAL;
-				if (copy_from_user (&tmp, ptr, sizeof (tmp)))
-					return -EFAULT;
-				return sys_msgrcv (first, tmp.msgp, second,
-						   tmp.msgtyp, third);
-				}
-			default:
-				return sys_msgrcv (first, ptr,
-						   second, fifth, third);
-			}
-		case MSGGET:
-			return sys_msgget ((key_t) first, second);
-		case MSGCTL:
-			return sys_msgctl (first, second, ptr);
-		default:
-			return -ENOSYS;
-		}
-	if (call <= SHMCTL)
-		switch (call) {
-		case SHMAT:
-			switch (version) {
-			default: {
-				ulong raddr;
-				ret = do_shmat (first, ptr, second, &raddr);
-				if (ret)
-					return ret;
-				return put_user (raddr, (ulong __user *) third);
-			}
-			}
-		case SHMDT:
-			return sys_shmdt (ptr);
-		case SHMGET:
-			return sys_shmget (first, second, third);
-		case SHMCTL:
-			return sys_shmctl (first, second, ptr);
-		default:
-			return -ENOSYS;
-		}
-
-	return -EINVAL;
-}
-
 /* Convert virtual (user) address VADDR to physical address PADDR */
 #define virt_to_phys_040(vaddr)						\
 ({									\
diff --git a/arch/m68knommu/kernel/sys_m68k.c b/arch/m68knommu/kernel/sys_m68k.c
index 3e371cc9fd9..d65e9c4c930 100644
--- a/arch/m68knommu/kernel/sys_m68k.c
+++ b/arch/m68knommu/kernel/sys_m68k.c
@@ -27,92 +27,6 @@
 #include <asm/cacheflush.h>
 #include <asm/unistd.h>
 
-/*
- * sys_ipc() is the de-multiplexer for the SysV IPC calls..
- *
- * This is really horribly ugly.
- */
-asmlinkage int sys_ipc (uint call, int first, int second,
-			int third, void *ptr, long fifth)
-{
-	int version, ret;
-
-	version = call >> 16; /* hack for backward compatibility */
-	call &= 0xffff;
-
-	if (call <= SEMCTL)
-		switch (call) {
-		case SEMOP:
-			return sys_semop (first, (struct sembuf *)ptr, second);
-		case SEMGET:
-			return sys_semget (first, second, third);
-		case SEMCTL: {
-			union semun fourth;
-			if (!ptr)
-				return -EINVAL;
-			if (get_user(fourth.__pad, (void **) ptr))
-				return -EFAULT;
-			return sys_semctl (first, second, third, fourth);
-			}
-		default:
-			return -EINVAL;
-		}
-	if (call <= MSGCTL) 
-		switch (call) {
-		case MSGSND:
-			return sys_msgsnd (first, (struct msgbuf *) ptr, 
-					  second, third);
-		case MSGRCV:
-			switch (version) {
-			case 0: {
-				struct ipc_kludge tmp;
-				if (!ptr)
-					return -EINVAL;
-				if (copy_from_user (&tmp,
-						    (struct ipc_kludge *)ptr,
-						    sizeof (tmp)))
-					return -EFAULT;
-				return sys_msgrcv (first, tmp.msgp, second,
-						   tmp.msgtyp, third);
-				}
-			default:
-				return sys_msgrcv (first,
-						   (struct msgbuf *) ptr,
-						   second, fifth, third);
-			}
-		case MSGGET:
-			return sys_msgget ((key_t) first, second);
-		case MSGCTL:
-			return sys_msgctl (first, second,
-					   (struct msqid_ds *) ptr);
-		default:
-			return -EINVAL;
-		}
-	if (call <= SHMCTL)
-		switch (call) {
-		case SHMAT:
-			switch (version) {
-			default: {
-				ulong raddr;
-				ret = do_shmat (first, ptr, second, &raddr);
-				if (ret)
-					return ret;
-				return put_user (raddr, (ulong __user *) third);
-			}
-			}
-		case SHMDT:
-			return sys_shmdt (ptr);
-		case SHMGET:
-			return sys_shmget (first, second, third);
-		case SHMCTL:
-			return sys_shmctl (first, second, ptr);
-		default:
-			return -ENOSYS;
-		}
-
-	return -EINVAL;
-}
-
 /* sys_cacheflush -- flush (part of) the processor cache.  */
 asmlinkage int
 sys_cacheflush (unsigned long addr, int scope, int cache, unsigned long len)
diff --git a/arch/mips/include/asm/unistd.h b/arch/mips/include/asm/unistd.h
index 65c679ecbe6..97fe472095f 100644
--- a/arch/mips/include/asm/unistd.h
+++ b/arch/mips/include/asm/unistd.h
@@ -1004,6 +1004,7 @@
 #define __ARCH_WANT_OLD_READDIR
 #define __ARCH_WANT_SYS_ALARM
 #define __ARCH_WANT_SYS_GETHOSTNAME
+#define __ARCH_WANT_SYS_IPC
 #define __ARCH_WANT_SYS_PAUSE
 #define __ARCH_WANT_SYS_SGETMASK
 #define __ARCH_WANT_SYS_UTIME
diff --git a/arch/mips/kernel/syscall.c b/arch/mips/kernel/syscall.c
index 3f7f466190b..257bf014177 100644
--- a/arch/mips/kernel/syscall.c
+++ b/arch/mips/kernel/syscall.c
@@ -406,94 +406,6 @@ _sys_sysmips(nabi_no_regargs struct pt_regs regs)
 	return -EINVAL;
 }
 
-/*
- * sys_ipc() is the de-multiplexer for the SysV IPC calls..
- *
- * This is really horribly ugly.
- */
-SYSCALL_DEFINE6(ipc, unsigned int, call, int, first, int, second,
-	unsigned long, third, void __user *, ptr, long, fifth)
-{
-	int version, ret;
-
-	version = call >> 16; /* hack for backward compatibility */
-	call &= 0xffff;
-
-	switch (call) {
-	case SEMOP:
-		return sys_semtimedop(first, (struct sembuf __user *)ptr,
-		                      second, NULL);
-	case SEMTIMEDOP:
-		return sys_semtimedop(first, (struct sembuf __user *)ptr,
-				      second,
-				      (const struct timespec __user *)fifth);
-	case SEMGET:
-		return sys_semget(first, second, third);
-	case SEMCTL: {
-		union semun fourth;
-		if (!ptr)
-			return -EINVAL;
-		if (get_user(fourth.__pad, (void __user *__user *) ptr))
-			return -EFAULT;
-		return sys_semctl(first, second, third, fourth);
-	}
-
-	case MSGSND:
-		return sys_msgsnd(first, (struct msgbuf __user *) ptr,
-				  second, third);
-	case MSGRCV:
-		switch (version) {
-		case 0: {
-			struct ipc_kludge tmp;
-			if (!ptr)
-				return -EINVAL;
-
-			if (copy_from_user(&tmp,
-					   (struct ipc_kludge __user *) ptr,
-					   sizeof(tmp)))
-				return -EFAULT;
-			return sys_msgrcv(first, tmp.msgp, second,
-					  tmp.msgtyp, third);
-		}
-		default:
-			return sys_msgrcv(first,
-					  (struct msgbuf __user *) ptr,
-					  second, fifth, third);
-		}
-	case MSGGET:
-		return sys_msgget((key_t) first, second);
-	case MSGCTL:
-		return sys_msgctl(first, second,
-				  (struct msqid_ds __user *) ptr);
-
-	case SHMAT:
-		switch (version) {
-		default: {
-			unsigned long raddr;
-			ret = do_shmat(first, (char __user *) ptr, second,
-				       &raddr);
-			if (ret)
-				return ret;
-			return put_user(raddr, (unsigned long __user *) third);
-		}
-		case 1:	/* iBCS2 emulator entry point */
-			if (!segment_eq(get_fs(), get_ds()))
-				return -EINVAL;
-			return do_shmat(first, (char __user *) ptr, second,
-				        (unsigned long *) third);
-		}
-	case SHMDT:
-		return sys_shmdt((char __user *)ptr);
-	case SHMGET:
-		return sys_shmget(first, second, third);
-	case SHMCTL:
-		return sys_shmctl(first, second,
-				  (struct shmid_ds __user *) ptr);
-	default:
-		return -ENOSYS;
-	}
-}
-
 /*
  * No implemented yet ...
  */
diff --git a/arch/mn10300/include/asm/unistd.h b/arch/mn10300/include/asm/unistd.h
index d13a56e99ba..9d056f51592 100644
--- a/arch/mn10300/include/asm/unistd.h
+++ b/arch/mn10300/include/asm/unistd.h
@@ -363,6 +363,7 @@
 #define __ARCH_WANT_STAT64
 #define __ARCH_WANT_SYS_ALARM
 #define __ARCH_WANT_SYS_GETHOSTNAME
+#define __ARCH_WANT_SYS_IPC
 #define __ARCH_WANT_SYS_PAUSE
 #define __ARCH_WANT_SYS_SGETMASK
 #define __ARCH_WANT_SYS_SIGNAL
diff --git a/arch/mn10300/kernel/sys_mn10300.c b/arch/mn10300/kernel/sys_mn10300.c
index bef69d6daf1..815f1355fad 100644
--- a/arch/mn10300/kernel/sys_mn10300.c
+++ b/arch/mn10300/kernel/sys_mn10300.c
@@ -31,91 +31,3 @@ asmlinkage long old_mmap(unsigned long addr, unsigned long len,
 		return -EINVAL;
 	return sys_mmap_pgoff(addr, len, prot, flags, fd, offset >> PAGE_SHIFT);
 }
-
-/*
- * sys_ipc() is the de-multiplexer for the SysV IPC calls..
- *
- * This is really horribly ugly.
- */
-asmlinkage long sys_ipc(uint call, int first, int second,
-			int third, void __user *ptr, long fifth)
-{
-	int version, ret;
-
-	version = call >> 16; /* hack for backward compatibility */
-	call &= 0xffff;
-
-	switch (call) {
-	case SEMOP:
-		return sys_semtimedop(first, (struct sembuf __user *)ptr,
-				      second, NULL);
-	case SEMTIMEDOP:
-		return sys_semtimedop(first, (struct sembuf __user *)ptr,
-				      second,
-				      (const struct timespec __user *)fifth);
-	case SEMGET:
-		return sys_semget(first, second, third);
-	case SEMCTL: {
-		union semun fourth;
-		if (!ptr)
-			return -EINVAL;
-		if (get_user(fourth.__pad, (void __user * __user *) ptr))
-			return -EFAULT;
-		return sys_semctl(first, second, third, fourth);
-	}
-
-	case MSGSND:
-		return sys_msgsnd(first, (struct msgbuf __user *) ptr,
-				  second, third);
-	case MSGRCV:
-		switch (version) {
-		case 0: {
-			struct ipc_kludge tmp;
-			if (!ptr)
-				return -EINVAL;
-
-			if (copy_from_user(&tmp,
-					   (struct ipc_kludge __user *) ptr,
-					   sizeof(tmp)))
-				return -EFAULT;
-			return sys_msgrcv(first, tmp.msgp, second,
-					  tmp.msgtyp, third);
-		}
-		default:
-			return sys_msgrcv(first,
-					  (struct msgbuf __user *) ptr,
-					   second, fifth, third);
-		}
-	case MSGGET:
-		return sys_msgget((key_t) first, second);
-	case MSGCTL:
-		return sys_msgctl(first, second,
-				   (struct msqid_ds __user *) ptr);
-
-	case SHMAT:
-		switch (version) {
-		default: {
-			ulong raddr;
-			ret = do_shmat(first, (char __user *) ptr, second,
-				       &raddr);
-			if (ret)
-				return ret;
-			return put_user(raddr, (ulong *) third);
-		}
-		case 1:	/* iBCS2 emulator entry point */
-			if (!segment_eq(get_fs(), get_ds()))
-				return -EINVAL;
-			return do_shmat(first, (char __user *) ptr, second,
-					(ulong *) third);
-		}
-	case SHMDT:
-		return sys_shmdt((char __user *)ptr);
-	case SHMGET:
-		return sys_shmget(first, second, third);
-	case SHMCTL:
-		return sys_shmctl(first, second,
-				  (struct shmid_ds __user *) ptr);
-	default:
-		return -EINVAL;
-	}
-}
diff --git a/arch/powerpc/include/asm/syscalls.h b/arch/powerpc/include/asm/syscalls.h
index eb8eb400c66..23bb74e7f94 100644
--- a/arch/powerpc/include/asm/syscalls.h
+++ b/arch/powerpc/include/asm/syscalls.h
@@ -35,8 +35,6 @@ asmlinkage long sys_pipe2(int __user *fildes, int flags);
 asmlinkage long sys_rt_sigaction(int sig,
 		const struct sigaction __user *act,
 		struct sigaction __user *oact, size_t sigsetsize);
-asmlinkage int sys_ipc(uint call, int first, unsigned long second,
-		long third, void __user *ptr, long fifth);
 asmlinkage long ppc64_personality(unsigned long personality);
 asmlinkage int ppc_rtas(struct rtas_args __user *uargs);
 asmlinkage time_t sys64_time(time_t __user * tloc);
diff --git a/arch/powerpc/include/asm/unistd.h b/arch/powerpc/include/asm/unistd.h
index f6ca7617676..c13821fe874 100644
--- a/arch/powerpc/include/asm/unistd.h
+++ b/arch/powerpc/include/asm/unistd.h
@@ -364,6 +364,7 @@
 #define __ARCH_WANT_STAT64
 #define __ARCH_WANT_SYS_ALARM
 #define __ARCH_WANT_SYS_GETHOSTNAME
+#define __ARCH_WANT_SYS_IPC
 #define __ARCH_WANT_SYS_PAUSE
 #define __ARCH_WANT_SYS_SGETMASK
 #define __ARCH_WANT_SYS_SIGNAL
diff --git a/arch/powerpc/kernel/syscalls.c b/arch/powerpc/kernel/syscalls.c
index 3370e62e43d..5251221e7a5 100644
--- a/arch/powerpc/kernel/syscalls.c
+++ b/arch/powerpc/kernel/syscalls.c
@@ -42,100 +42,6 @@
 #include <asm/time.h>
 #include <asm/unistd.h>
 
-/*
- * sys_ipc() is the de-multiplexer for the SysV IPC calls..
- *
- * This is really horribly ugly.
- */
-int sys_ipc(uint call, int first, unsigned long second, long third,
-	    void __user *ptr, long fifth)
-{
-	int version, ret;
-
-	version = call >> 16; /* hack for backward compatibility */
-	call &= 0xffff;
-
-	ret = -ENOSYS;
-	switch (call) {
-	case SEMOP:
-		ret = sys_semtimedop(first, (struct sembuf __user *)ptr,
-				      (unsigned)second, NULL);
-		break;
-	case SEMTIMEDOP:
-		ret = sys_semtimedop(first, (struct sembuf __user *)ptr,
-				      (unsigned)second,
-				      (const struct timespec __user *) fifth);
-		break;
-	case SEMGET:
-		ret = sys_semget (first, (int)second, third);
-		break;
-	case SEMCTL: {
-		union semun fourth;
-
-		ret = -EINVAL;
-		if (!ptr)
-			break;
-		if ((ret = get_user(fourth.__pad, (void __user * __user *)ptr)))
-			break;
-		ret = sys_semctl(first, (int)second, third, fourth);
-		break;
-	}
-	case MSGSND:
-		ret = sys_msgsnd(first, (struct msgbuf __user *)ptr,
-				 (size_t)second, third);
-		break;
-	case MSGRCV:
-		switch (version) {
-		case 0: {
-			struct ipc_kludge tmp;
-
-			ret = -EINVAL;
-			if (!ptr)
-				break;
-			if ((ret = copy_from_user(&tmp,
-						(struct ipc_kludge __user *) ptr,
-						sizeof (tmp)) ? -EFAULT : 0))
-				break;
-			ret = sys_msgrcv(first, tmp.msgp, (size_t) second,
-					  tmp.msgtyp, third);
-			break;
-		}
-		default:
-			ret = sys_msgrcv (first, (struct msgbuf __user *) ptr,
-					  (size_t)second, fifth, third);
-			break;
-		}
-		break;
-	case MSGGET:
-		ret = sys_msgget((key_t)first, (int)second);
-		break;
-	case MSGCTL:
-		ret = sys_msgctl(first, (int)second,
-				  (struct msqid_ds __user *)ptr);
-		break;
-	case SHMAT: {
-		ulong raddr;
-		ret = do_shmat(first, (char __user *)ptr, (int)second, &raddr);
-		if (ret)
-			break;
-		ret = put_user(raddr, (ulong __user *) third);
-		break;
-	}
-	case SHMDT:
-		ret = sys_shmdt((char __user *)ptr);
-		break;
-	case SHMGET:
-		ret = sys_shmget(first, (size_t)second, third);
-		break;
-	case SHMCTL:
-		ret = sys_shmctl(first, (int)second,
-				 (struct shmid_ds __user *)ptr);
-		break;
-	}
-
-	return ret;
-}
-
 static inline unsigned long do_mmap2(unsigned long addr, size_t len,
 			unsigned long prot, unsigned long flags,
 			unsigned long fd, unsigned long off, int shift)
diff --git a/arch/s390/kernel/entry.h b/arch/s390/kernel/entry.h
index 5de54d2af0b..15fd68b196c 100644
--- a/arch/s390/kernel/entry.h
+++ b/arch/s390/kernel/entry.h
@@ -30,7 +30,7 @@ struct fadvise64_64_args;
 struct old_sigaction;
 
 long sys_mmap2(struct s390_mmap_arg_struct __user  *arg);
-long sys_ipc(uint call, int first, unsigned long second,
+long sys_s390_ipc(uint call, int first, unsigned long second,
 	     unsigned long third, void __user *ptr);
 long sys_s390_newuname(struct new_utsname __user *name);
 long sys_s390_personality(unsigned long personality);
diff --git a/arch/s390/kernel/sys_s390.c b/arch/s390/kernel/sys_s390.c
index b2563509b5a..b8b78092ab7 100644
--- a/arch/s390/kernel/sys_s390.c
+++ b/arch/s390/kernel/sys_s390.c
@@ -64,7 +64,7 @@ out:
  *
  * This is really horribly ugly.
  */
-SYSCALL_DEFINE5(ipc, uint, call, int, first, unsigned long, second,
+SYSCALL_DEFINE5(s390_ipc, uint, call, int, first, unsigned long, second,
 		unsigned long, third, void __user *, ptr)
 {
         struct ipc_kludge tmp;
diff --git a/arch/s390/kernel/syscalls.S b/arch/s390/kernel/syscalls.S
index 2a24766567a..990ac8b321c 100644
--- a/arch/s390/kernel/syscalls.S
+++ b/arch/s390/kernel/syscalls.S
@@ -125,7 +125,7 @@ NI_SYSCALL							/* vm86old for i386 */
 SYSCALL(sys_wait4,sys_wait4,compat_sys_wait4_wrapper)
 SYSCALL(sys_swapoff,sys_swapoff,sys32_swapoff_wrapper)		/* 115 */
 SYSCALL(sys_sysinfo,sys_sysinfo,compat_sys_sysinfo_wrapper)
-SYSCALL(sys_ipc,sys_ipc,sys32_ipc_wrapper)
+SYSCALL(sys_s390_ipc,sys_s390_ipc,sys32_ipc_wrapper)
 SYSCALL(sys_fsync,sys_fsync,sys32_fsync_wrapper)
 SYSCALL(sys_sigreturn,sys_sigreturn,sys32_sigreturn)
 SYSCALL(sys_clone,sys_clone,sys_clone_wrapper)			/* 120 */
diff --git a/arch/sh/include/asm/syscalls.h b/arch/sh/include/asm/syscalls.h
index c1e2b8deb83..c1ce2862f7b 100644
--- a/arch/sh/include/asm/syscalls.h
+++ b/arch/sh/include/asm/syscalls.h
@@ -11,8 +11,6 @@ asmlinkage int old_mmap(unsigned long addr, unsigned long len,
 asmlinkage long sys_mmap2(unsigned long addr, unsigned long len,
 			  unsigned long prot, unsigned long flags,
 			  unsigned long fd, unsigned long pgoff);
-asmlinkage int sys_ipc(uint call, int first, int second,
-		       int third, void __user *ptr, long fifth);
 asmlinkage int sys_uname(struct old_utsname __user *name);
 
 #ifdef CONFIG_SUPERH32
diff --git a/arch/sh/include/asm/unistd_32.h b/arch/sh/include/asm/unistd_32.h
index 365744b0526..a48f65e2e42 100644
--- a/arch/sh/include/asm/unistd_32.h
+++ b/arch/sh/include/asm/unistd_32.h
@@ -358,6 +358,7 @@
 #define __ARCH_WANT_STAT64
 #define __ARCH_WANT_SYS_ALARM
 #define __ARCH_WANT_SYS_GETHOSTNAME
+#define __ARCH_WANT_SYS_IPC
 #define __ARCH_WANT_SYS_PAUSE
 #define __ARCH_WANT_SYS_SGETMASK
 #define __ARCH_WANT_SYS_SIGNAL
diff --git a/arch/sh/include/asm/unistd_64.h b/arch/sh/include/asm/unistd_64.h
index 25de158aac3..7709b2b8f75 100644
--- a/arch/sh/include/asm/unistd_64.h
+++ b/arch/sh/include/asm/unistd_64.h
@@ -398,6 +398,7 @@
 #define __ARCH_WANT_STAT64
 #define __ARCH_WANT_SYS_ALARM
 #define __ARCH_WANT_SYS_GETHOSTNAME
+#define __ARCH_WANT_SYS_IPC
 #define __ARCH_WANT_SYS_PAUSE
 #define __ARCH_WANT_SYS_SGETMASK
 #define __ARCH_WANT_SYS_SIGNAL
diff --git a/arch/sh/kernel/sys_sh.c b/arch/sh/kernel/sys_sh.c
index 71399cde03b..c18cfaa67fd 100644
--- a/arch/sh/kernel/sys_sh.c
+++ b/arch/sh/kernel/sys_sh.c
@@ -53,110 +53,6 @@ asmlinkage long sys_mmap2(unsigned long addr, unsigned long len,
 	return sys_mmap_pgoff(addr, len, prot, flags, fd, pgoff);
 }
 
-/*
- * sys_ipc() is the de-multiplexer for the SysV IPC calls..
- *
- * This is really horribly ugly.
- */
-asmlinkage int sys_ipc(uint call, int first, int second,
-		       int third, void __user *ptr, long fifth)
-{
-	int version, ret;
-
-	version = call >> 16; /* hack for backward compatibility */
-	call &= 0xffff;
-
-	if (call <= SEMTIMEDOP)
-		switch (call) {
-		case SEMOP:
-			return sys_semtimedop(first,
-					      (struct sembuf __user *)ptr,
-					      second, NULL);
-		case SEMTIMEDOP:
-			return sys_semtimedop(first,
-				(struct sembuf __user *)ptr, second,
-			        (const struct timespec __user *)fifth);
-		case SEMGET:
-			return sys_semget (first, second, third);
-		case SEMCTL: {
-			union semun fourth;
-			if (!ptr)
-				return -EINVAL;
-			if (get_user(fourth.__pad, (void __user * __user *) ptr))
-				return -EFAULT;
-			return sys_semctl (first, second, third, fourth);
-			}
-		default:
-			return -EINVAL;
-		}
-
-	if (call <= MSGCTL)
-		switch (call) {
-		case MSGSND:
-			return sys_msgsnd (first, (struct msgbuf __user *) ptr,
-					  second, third);
-		case MSGRCV:
-			switch (version) {
-			case 0:
-			{
-				struct ipc_kludge tmp;
-
-				if (!ptr)
-					return -EINVAL;
-
-				if (copy_from_user(&tmp,
-					(struct ipc_kludge __user *) ptr,
-						   sizeof (tmp)))
-					return -EFAULT;
-
-				return sys_msgrcv (first, tmp.msgp, second,
-						   tmp.msgtyp, third);
-			}
-			default:
-				return sys_msgrcv (first,
-						   (struct msgbuf __user *) ptr,
-						   second, fifth, third);
-			}
-		case MSGGET:
-			return sys_msgget ((key_t) first, second);
-		case MSGCTL:
-			return sys_msgctl (first, second,
-					   (struct msqid_ds __user *) ptr);
-		default:
-			return -EINVAL;
-		}
-	if (call <= SHMCTL)
-		switch (call) {
-		case SHMAT:
-			switch (version) {
-			default: {
-				ulong raddr;
-				ret = do_shmat (first, (char __user *) ptr,
-						 second, &raddr);
-				if (ret)
-					return ret;
-				return put_user (raddr, (ulong __user *) third);
-			}
-			case 1:	/* iBCS2 emulator entry point */
-				if (!segment_eq(get_fs(), get_ds()))
-					return -EINVAL;
-				return do_shmat (first, (char __user *) ptr,
-						  second, (ulong *) third);
-			}
-		case SHMDT:
-			return sys_shmdt ((char __user *)ptr);
-		case SHMGET:
-			return sys_shmget (first, second, third);
-		case SHMCTL:
-			return sys_shmctl (first, second,
-					   (struct shmid_ds __user *) ptr);
-		default:
-			return -EINVAL;
-		}
-
-	return -EINVAL;
-}
-
 /* sys_cacheflush -- flush (part of) the processor cache.  */
 asmlinkage int sys_cacheflush(unsigned long addr, unsigned long len, int op)
 {
diff --git a/arch/sparc/include/asm/unistd.h b/arch/sparc/include/asm/unistd.h
index cb4b9bfd0d8..d0b3b01ac9d 100644
--- a/arch/sparc/include/asm/unistd.h
+++ b/arch/sparc/include/asm/unistd.h
@@ -432,7 +432,9 @@
 #define __ARCH_WANT_SYS_SIGPENDING
 #define __ARCH_WANT_SYS_SIGPROCMASK
 #define __ARCH_WANT_SYS_RT_SIGSUSPEND
-#ifndef __32bit_syscall_numbers__
+#ifdef __32bit_syscall_numbers__
+#define __ARCH_WANT_SYS_IPC
+#else
 #define __ARCH_WANT_COMPAT_SYS_TIME
 #define __ARCH_WANT_COMPAT_SYS_RT_SIGSUSPEND
 #endif
diff --git a/arch/sparc/kernel/sys_sparc_32.c b/arch/sparc/kernel/sys_sparc_32.c
index 3a82e65d8db..ee995b7dae7 100644
--- a/arch/sparc/kernel/sys_sparc_32.c
+++ b/arch/sparc/kernel/sys_sparc_32.c
@@ -98,119 +98,6 @@ out:
 	return error;
 }
 
-/*
- * sys_ipc() is the de-multiplexer for the SysV IPC calls..
- *
- * This is really horribly ugly.
- */
-
-asmlinkage int sys_ipc (uint call, int first, int second, int third, void __user *ptr, long fifth)
-{
-	int version, err;
-
-	version = call >> 16; /* hack for backward compatibility */
-	call &= 0xffff;
-
-	if (call <= SEMCTL)
-		switch (call) {
-		case SEMOP:
-			err = sys_semtimedop (first, (struct sembuf __user *)ptr, second, NULL);
-			goto out;
-		case SEMTIMEDOP:
-			err = sys_semtimedop (first, (struct sembuf __user *)ptr, second, (const struct timespec __user *) fifth);
-			goto out;
-		case SEMGET:
-			err = sys_semget (first, second, third);
-			goto out;
-		case SEMCTL: {
-			union semun fourth;
-			err = -EINVAL;
-			if (!ptr)
-				goto out;
-			err = -EFAULT;
-			if (get_user(fourth.__pad,
-				     (void __user * __user *)ptr))
-				goto out;
-			err = sys_semctl (first, second, third, fourth);
-			goto out;
-			}
-		default:
-			err = -ENOSYS;
-			goto out;
-		}
-	if (call <= MSGCTL) 
-		switch (call) {
-		case MSGSND:
-			err = sys_msgsnd (first, (struct msgbuf __user *) ptr, 
-					  second, third);
-			goto out;
-		case MSGRCV:
-			switch (version) {
-			case 0: {
-				struct ipc_kludge tmp;
-				err = -EINVAL;
-				if (!ptr)
-					goto out;
-				err = -EFAULT;
-				if (copy_from_user(&tmp, (struct ipc_kludge __user *) ptr, sizeof (tmp)))
-					goto out;
-				err = sys_msgrcv (first, tmp.msgp, second, tmp.msgtyp, third);
-				goto out;
-				}
-			case 1: default:
-				err = sys_msgrcv (first,
-						  (struct msgbuf __user *) ptr,
-						  second, fifth, third);
-				goto out;
-			}
-		case MSGGET:
-			err = sys_msgget ((key_t) first, second);
-			goto out;
-		case MSGCTL:
-			err = sys_msgctl (first, second, (struct msqid_ds __user *) ptr);
-			goto out;
-		default:
-			err = -ENOSYS;
-			goto out;
-		}
-	if (call <= SHMCTL) 
-		switch (call) {
-		case SHMAT:
-			switch (version) {
-			case 0: default: {
-				ulong raddr;
-				err = do_shmat (first, (char __user *) ptr, second, &raddr);
-				if (err)
-					goto out;
-				err = -EFAULT;
-				if (put_user (raddr, (ulong __user *) third))
-					goto out;
-				err = 0;
-				goto out;
-				}
-			case 1:	/* iBCS2 emulator entry point */
-				err = -EINVAL;
-				goto out;
-			}
-		case SHMDT: 
-			err = sys_shmdt ((char __user *)ptr);
-			goto out;
-		case SHMGET:
-			err = sys_shmget (first, second, third);
-			goto out;
-		case SHMCTL:
-			err = sys_shmctl (first, second, (struct shmid_ds __user *) ptr);
-			goto out;
-		default:
-			err = -ENOSYS;
-			goto out;
-		}
-	else
-		err = -ENOSYS;
-out:
-	return err;
-}
-
 int sparc_mmap_check(unsigned long addr, unsigned long len)
 {
 	if (ARCH_SUN4C &&
diff --git a/arch/sparc/kernel/sys_sparc_64.c b/arch/sparc/kernel/sys_sparc_64.c
index cb1bef6f14b..45410e93962 100644
--- a/arch/sparc/kernel/sys_sparc_64.c
+++ b/arch/sparc/kernel/sys_sparc_64.c
@@ -426,7 +426,7 @@ out:
  * This is really horribly ugly.
  */
 
-SYSCALL_DEFINE6(ipc, unsigned int, call, int, first, unsigned long, second,
+SYSCALL_DEFINE6(sparc_ipc, unsigned int, call, int, first, unsigned long, second,
 		unsigned long, third, void __user *, ptr, long, fifth)
 {
 	long err;
diff --git a/arch/sparc/kernel/systbls.h b/arch/sparc/kernel/systbls.h
index 68312fe8da7..2c331c37e74 100644
--- a/arch/sparc/kernel/systbls.h
+++ b/arch/sparc/kernel/systbls.h
@@ -10,7 +10,7 @@ struct new_utsname;
 
 extern asmlinkage unsigned long sys_getpagesize(void);
 extern asmlinkage long sparc_pipe(struct pt_regs *regs);
-extern asmlinkage long sys_ipc(unsigned int call, int first,
+extern asmlinkage long sys_sparc_ipc(unsigned int call, int first,
 			       unsigned long second,
 			       unsigned long third,
 			       void __user *ptr, long fifth);
diff --git a/arch/sparc/kernel/systbls_64.S b/arch/sparc/kernel/systbls_64.S
index 17614251fb6..30ca2b1d3a1 100644
--- a/arch/sparc/kernel/systbls_64.S
+++ b/arch/sparc/kernel/systbls_64.S
@@ -136,7 +136,7 @@ sys_call_table:
 /*200*/	.word sys_ssetmask, sys_nis_syscall, sys_newlstat, sys_uselib, sys_nis_syscall
 	.word sys_readahead, sys_socketcall, sys_syslog, sys_lookup_dcookie, sys_fadvise64
 /*210*/	.word sys_fadvise64_64, sys_tgkill, sys_waitpid, sys_swapoff, sys_sysinfo
-	.word sys_ipc, sys_nis_syscall, sys_clone, sys_ioprio_get, sys_adjtimex
+	.word sys_sparc_ipc, sys_nis_syscall, sys_clone, sys_ioprio_get, sys_adjtimex
 /*220*/	.word sys_nis_syscall, sys_ni_syscall, sys_delete_module, sys_ni_syscall, sys_getpgid
 	.word sys_bdflush, sys_sysfs, sys_nis_syscall, sys_setfsuid, sys_setfsgid
 /*230*/	.word sys_select, sys_nis_syscall, sys_splice, sys_stime, sys_statfs64
diff --git a/arch/um/sys-i386/syscalls.c b/arch/um/sys-i386/syscalls.c
index d0aa8f125ee..70ca357393b 100644
--- a/arch/um/sys-i386/syscalls.c
+++ b/arch/um/sys-i386/syscalls.c
@@ -34,92 +34,6 @@ long sys_clone(unsigned long clone_flags, unsigned long newsp,
 	return ret;
 }
 
-/*
- * sys_ipc() is the de-multiplexer for the SysV IPC calls..
- *
- * This is really horribly ugly.
- */
-long sys_ipc (uint call, int first, int second,
-	     int third, void __user *ptr, long fifth)
-{
-	int version, ret;
-
-	version = call >> 16; /* hack for backward compatibility */
-	call &= 0xffff;
-
-	switch (call) {
-	case SEMOP:
-		return sys_semtimedop(first, (struct sembuf __user *) ptr,
-				      second, NULL);
-	case SEMTIMEDOP:
-		return sys_semtimedop(first, (struct sembuf __user *) ptr,
-				      second,
-				      (const struct timespec __user *) fifth);
-	case SEMGET:
-		return sys_semget (first, second, third);
-	case SEMCTL: {
-		union semun fourth;
-		if (!ptr)
-			return -EINVAL;
-		if (get_user(fourth.__pad, (void __user * __user *) ptr))
-			return -EFAULT;
-		return sys_semctl (first, second, third, fourth);
-	}
-
-	case MSGSND:
-		return sys_msgsnd (first, (struct msgbuf *) ptr,
-				   second, third);
-	case MSGRCV:
-		switch (version) {
-		case 0: {
-			struct ipc_kludge tmp;
-			if (!ptr)
-				return -EINVAL;
-
-			if (copy_from_user(&tmp,
-					   (struct ipc_kludge *) ptr,
-					   sizeof (tmp)))
-				return -EFAULT;
-			return sys_msgrcv (first, tmp.msgp, second,
-					   tmp.msgtyp, third);
-		}
-		default:
-		        panic("msgrcv with version != 0");
-			return sys_msgrcv (first,
-					   (struct msgbuf *) ptr,
-					   second, fifth, third);
-		}
-	case MSGGET:
-		return sys_msgget ((key_t) first, second);
-	case MSGCTL:
-		return sys_msgctl (first, second, (struct msqid_ds *) ptr);
-
-	case SHMAT:
-		switch (version) {
-		default: {
-			ulong raddr;
-			ret = do_shmat (first, (char *) ptr, second, &raddr);
-			if (ret)
-				return ret;
-			return put_user (raddr, (ulong *) third);
-		}
-		case 1:	/* iBCS2 emulator entry point */
-			if (!segment_eq(get_fs(), get_ds()))
-				return -EINVAL;
-			return do_shmat (first, (char *) ptr, second, (ulong *) third);
-		}
-	case SHMDT:
-		return sys_shmdt ((char *)ptr);
-	case SHMGET:
-		return sys_shmget (first, second, third);
-	case SHMCTL:
-		return sys_shmctl (first, second,
-				   (struct shmid_ds *) ptr);
-	default:
-		return -ENOSYS;
-	}
-}
-
 long sys_sigaction(int sig, const struct old_sigaction __user *act,
 			 struct old_sigaction __user *oact)
 {
diff --git a/arch/x86/include/asm/syscalls.h b/arch/x86/include/asm/syscalls.h
index 86ab6a0623f..50f6a569f0d 100644
--- a/arch/x86/include/asm/syscalls.h
+++ b/arch/x86/include/asm/syscalls.h
@@ -54,7 +54,6 @@ unsigned long sys_sigreturn(struct pt_regs *);
 struct oldold_utsname;
 struct old_utsname;
 
-asmlinkage int sys_ipc(uint, int, int, int, void __user *, long);
 asmlinkage int sys_uname(struct old_utsname __user *);
 asmlinkage int sys_olduname(struct oldold_utsname __user *);
 
diff --git a/arch/x86/include/asm/unistd_32.h b/arch/x86/include/asm/unistd_32.h
index daa65d9aae9..45e64a17b86 100644
--- a/arch/x86/include/asm/unistd_32.h
+++ b/arch/x86/include/asm/unistd_32.h
@@ -354,6 +354,7 @@
 #define __ARCH_WANT_STAT64
 #define __ARCH_WANT_SYS_ALARM
 #define __ARCH_WANT_SYS_GETHOSTNAME
+#define __ARCH_WANT_SYS_IPC
 #define __ARCH_WANT_SYS_PAUSE
 #define __ARCH_WANT_SYS_SGETMASK
 #define __ARCH_WANT_SYS_SIGNAL
diff --git a/arch/x86/kernel/sys_i386_32.c b/arch/x86/kernel/sys_i386_32.c
index 7955e90c834..8b5c348fdcf 100644
--- a/arch/x86/kernel/sys_i386_32.c
+++ b/arch/x86/kernel/sys_i386_32.c
@@ -24,91 +24,6 @@
 
 #include <asm/syscalls.h>
 
-/*
- * sys_ipc() is the de-multiplexer for the SysV IPC calls..
- *
- * This is really horribly ugly.
- */
-asmlinkage int sys_ipc(uint call, int first, int second,
-			int third, void __user *ptr, long fifth)
-{
-	int version, ret;
-
-	version = call >> 16; /* hack for backward compatibility */
-	call &= 0xffff;
-
-	switch (call) {
-	case SEMOP:
-		return sys_semtimedop(first, (struct sembuf __user *)ptr, second, NULL);
-	case SEMTIMEDOP:
-		return sys_semtimedop(first, (struct sembuf __user *)ptr, second,
-					(const struct timespec __user *)fifth);
-
-	case SEMGET:
-		return sys_semget(first, second, third);
-	case SEMCTL: {
-		union semun fourth;
-		if (!ptr)
-			return -EINVAL;
-		if (get_user(fourth.__pad, (void __user * __user *) ptr))
-			return -EFAULT;
-		return sys_semctl(first, second, third, fourth);
-	}
-
-	case MSGSND:
-		return sys_msgsnd(first, (struct msgbuf __user *) ptr,
-				   second, third);
-	case MSGRCV:
-		switch (version) {
-		case 0: {
-			struct ipc_kludge tmp;
-			if (!ptr)
-				return -EINVAL;
-
-			if (copy_from_user(&tmp,
-					   (struct ipc_kludge __user *) ptr,
-					   sizeof(tmp)))
-				return -EFAULT;
-			return sys_msgrcv(first, tmp.msgp, second,
-					   tmp.msgtyp, third);
-		}
-		default:
-			return sys_msgrcv(first,
-					   (struct msgbuf __user *) ptr,
-					   second, fifth, third);
-		}
-	case MSGGET:
-		return sys_msgget((key_t) first, second);
-	case MSGCTL:
-		return sys_msgctl(first, second, (struct msqid_ds __user *) ptr);
-
-	case SHMAT:
-		switch (version) {
-		default: {
-			ulong raddr;
-			ret = do_shmat(first, (char __user *) ptr, second, &raddr);
-			if (ret)
-				return ret;
-			return put_user(raddr, (ulong __user *) third);
-		}
-		case 1:	/* iBCS2 emulator entry point */
-			if (!segment_eq(get_fs(), get_ds()))
-				return -EINVAL;
-			/* The "(ulong *) third" is valid _only_ because of the kernel segment thing */
-			return do_shmat(first, (char __user *) ptr, second, (ulong *) third);
-		}
-	case SHMDT:
-		return sys_shmdt((char __user *)ptr);
-	case SHMGET:
-		return sys_shmget(first, second, third);
-	case SHMCTL:
-		return sys_shmctl(first, second,
-				   (struct shmid_ds __user *) ptr);
-	default:
-		return -ENOSYS;
-	}
-}
-
 /*
  * Old cruft
  */
diff --git a/include/linux/syscalls.h b/include/linux/syscalls.h
index b60907e3b0d..fbb61ae70e0 100644
--- a/include/linux/syscalls.h
+++ b/include/linux/syscalls.h
@@ -684,6 +684,8 @@ asmlinkage long sys_shmat(int shmid, char __user *shmaddr, int shmflg);
 asmlinkage long sys_shmget(key_t key, size_t size, int flag);
 asmlinkage long sys_shmdt(char __user *shmaddr);
 asmlinkage long sys_shmctl(int shmid, int cmd, struct shmid_ds __user *buf);
+asmlinkage long sys_ipc(unsigned int call, int first, int second,
+		unsigned long third, void __user *ptr, long fifth);
 
 asmlinkage long sys_mq_open(const char __user *name, int oflag, mode_t mode, struct mq_attr __user *attr);
 asmlinkage long sys_mq_unlink(const char __user *name);
diff --git a/ipc/Makefile b/ipc/Makefile
index 4e1955ea815..9075e172e52 100644
--- a/ipc/Makefile
+++ b/ipc/Makefile
@@ -3,7 +3,7 @@
 #
 
 obj-$(CONFIG_SYSVIPC_COMPAT) += compat.o
-obj-$(CONFIG_SYSVIPC) += util.o msgutil.o msg.o sem.o shm.o ipcns_notifier.o
+obj-$(CONFIG_SYSVIPC) += util.o msgutil.o msg.o sem.o shm.o ipcns_notifier.o syscall.o
 obj-$(CONFIG_SYSVIPC_SYSCTL) += ipc_sysctl.o
 obj_mq-$(CONFIG_COMPAT) += compat_mq.o
 obj-$(CONFIG_POSIX_MQUEUE) += mqueue.o msgutil.o $(obj_mq-y)
diff --git a/ipc/syscall.c b/ipc/syscall.c
new file mode 100644
index 00000000000..355a3da9ec7
--- /dev/null
+++ b/ipc/syscall.c
@@ -0,0 +1,99 @@
+/*
+ * sys_ipc() is the old de-multiplexer for the SysV IPC calls.
+ *
+ * This is really horribly ugly, and new architectures should just wire up
+ * the individual syscalls instead.
+ */
+#include <linux/unistd.h>
+
+#ifdef __ARCH_WANT_SYS_IPC
+#include <linux/errno.h>
+#include <linux/ipc.h>
+#include <linux/shm.h>
+#include <linux/syscalls.h>
+#include <linux/uaccess.h>
+
+SYSCALL_DEFINE6(ipc, unsigned int, call, int, first, int, second,
+		unsigned long, third, void __user *, ptr, long, fifth)
+{
+	int version, ret;
+
+	version = call >> 16; /* hack for backward compatibility */
+	call &= 0xffff;
+
+	switch (call) {
+	case SEMOP:
+		return sys_semtimedop(first, (struct sembuf __user *)ptr,
+				      second, NULL);
+	case SEMTIMEDOP:
+		return sys_semtimedop(first, (struct sembuf __user *)ptr,
+				      second,
+				      (const struct timespec __user *)fifth);
+
+	case SEMGET:
+		return sys_semget(first, second, third);
+	case SEMCTL: {
+		union semun fourth;
+		if (!ptr)
+			return -EINVAL;
+		if (get_user(fourth.__pad, (void __user * __user *) ptr))
+			return -EFAULT;
+		return sys_semctl(first, second, third, fourth);
+	}
+
+	case MSGSND:
+		return sys_msgsnd(first, (struct msgbuf __user *) ptr,
+				  second, third);
+	case MSGRCV:
+		switch (version) {
+		case 0: {
+			struct ipc_kludge tmp;
+			if (!ptr)
+				return -EINVAL;
+
+			if (copy_from_user(&tmp,
+					   (struct ipc_kludge __user *) ptr,
+					   sizeof(tmp)))
+				return -EFAULT;
+			return sys_msgrcv(first, tmp.msgp, second,
+					   tmp.msgtyp, third);
+		}
+		default:
+			return sys_msgrcv(first,
+					   (struct msgbuf __user *) ptr,
+					   second, fifth, third);
+		}
+	case MSGGET:
+		return sys_msgget((key_t) first, second);
+	case MSGCTL:
+		return sys_msgctl(first, second, (struct msqid_ds __user *)ptr);
+
+	case SHMAT:
+		switch (version) {
+		default: {
+			unsigned long raddr;
+			ret = do_shmat(first, (char __user *)ptr,
+				       second, &raddr);
+			if (ret)
+				return ret;
+			return put_user(raddr, (unsigned long __user *) third);
+		}
+		case 1:
+			/*
+			 * This was the entry point for kernel-originating calls
+			 * from iBCS2 in 2.2 days.
+			 */
+			return -EINVAL;
+		}
+	case SHMDT:
+		return sys_shmdt((char __user *)ptr);
+	case SHMGET:
+		return sys_shmget(first, second, third);
+	case SHMCTL:
+		return sys_shmctl(first, second,
+				   (struct shmid_ds __user *) ptr);
+	default:
+		return -ENOSYS;
+	}
+}
+#endif
diff --git a/kernel/sys_ni.c b/kernel/sys_ni.c
index 695384f12a7..70f2ea758ff 100644
--- a/kernel/sys_ni.c
+++ b/kernel/sys_ni.c
@@ -126,6 +126,7 @@ cond_syscall(sys_setreuid16);
 cond_syscall(sys_setuid16);
 cond_syscall(sys_vm86old);
 cond_syscall(sys_vm86);
+cond_syscall(sys_ipc);
 cond_syscall(compat_sys_ipc);
 cond_syscall(compat_sys_sysctl);
 cond_syscall(sys_flock);