[PATCH] export sys_ioctl to modules

Small patch to export sys_ioctl if CONFIG_COMPAT is set.  This allows
platforms to implement 32 bit compatibility ioctl handlers in modules.
Submitted-by: Jesse Barnes <jbarnes@sgi.com>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>

arch/ppc64/kernel/ppc_ksyms.c

@@ -50,7 +50,6 @@ extern int do_signal(sigset_t *, struct pt_regs *);
 int abs(int);
 
 EXPORT_SYMBOL(do_signal);
-EXPORT_SYMBOL(sys_ioctl);
 
 EXPORT_SYMBOL(isa_io_base);
 EXPORT_SYMBOL(pci_io_base);

arch/s390/kernel/s390_ksyms.c

@@ -76,4 +76,3 @@ EXPORT_SYMBOL(console_device);
 EXPORT_SYMBOL_NOVERS(do_call_softirq);
 EXPORT_SYMBOL(sys_wait4);
 EXPORT_SYMBOL(cpcmd);
-EXPORT_SYMBOL(sys_ioctl);

arch/sparc64/kernel/sparc64_ksyms.c

@@ -327,7 +327,6 @@ EXPORT_SYMBOL(sys_getegid);
 EXPORT_SYMBOL(sys_getgid);
 EXPORT_SYMBOL(svr4_getcontext);
 EXPORT_SYMBOL(svr4_setcontext);
-EXPORT_SYMBOL(sys_ioctl);
 EXPORT_SYMBOL(compat_sys_ioctl);
 EXPORT_SYMBOL(sparc32_open);
 EXPORT_SYMBOL(sys_close);

arch/x86_64/kernel/x8664_ksyms.c

@@ -218,4 +218,3 @@ EXPORT_SYMBOL(flush_tlb_page);
 EXPORT_SYMBOL_GPL(flush_tlb_all);
 #endif
 
-EXPORT_SYMBOL(sys_ioctl);

fs/ioctl.c

@@ -4,11 +4,13 @@
  *  Copyright (C) 1991, 1992  Linus Torvalds
  */
 
+#include <linux/config.h>
 #include <linux/mm.h>
 #include <linux/smp_lock.h>
 #include <linux/file.h>
 #include <linux/fs.h>
 #include <linux/security.h>
+#include <linux/module.h>
 
 #include <asm/uaccess.h>
 #include <asm/ioctls.h>
@@ -133,3 +135,11 @@ asmlinkage long sys_ioctl(unsigned int fd, unsigned int cmd, unsigned long arg)
 out:
 	return error;
 }
+
+/*
+ * Platforms implementing 32 bit compatibility ioctl handlers in
+ * modules need this exported
+ */
+#ifdef CONFIG_COMPAT
+EXPORT_SYMBOL(sys_ioctl);
+#endif