[PATCH] ia64: including <asm/signal.h> alone causes compilation errors

From: Jeff Mahoney
Date: Mon Jan 09 2006 - 12:14:08 EST



Including *just* <asm/signal.h> on ia64 will result in a compilation failure,
where it will succeed on every other architecture.

Every other arch includes <linux/compiler.h> either directly or via
<linux/types.h> at the top of <asm-*/signal.h>. ia64 includes
<linux/types.h> after including <asm-generic/signal.h>, which causes
the __user in <asm-generic/signal.h> to get passed through untouched, causing
compilation errors.

This patch moves the #include <linux/types.h> up to the beginning of signal.h,
as found on every other arch.

A specific example of where this behavior is observed is the recent addition
of OCFS2. fs/ocfs2/cluster/userdlm.c seems alone in only including
<asm/signal.h>, which seems to be perfectly valid.

While I could have just fixed this in the OCFS2 code, I thought that making
ia64 more consistent with the rest of the kernel would be the better fix.

Signed-off-by: Jeff Mahoney <jeffm@xxxxxxxx>

diff -ruNpX dontdiff linux-2.6.15/include/asm-ia64/signal.h linux-2.6.15-ocfs2/include/asm-ia64/signal.h
--- linux-2.6.15/include/asm-ia64/signal.h 2006-01-02 22:21:10.000000000 -0500
+++ linux-2.6.15-ocfs2/include/asm-ia64/signal.h 2006-01-09 11:08:16.404700640 -0500
@@ -1,6 +1,8 @@
#ifndef _ASM_IA64_SIGNAL_H
#define _ASM_IA64_SIGNAL_H

+#include <linux/types.h>
+
/*
* Modified 1998-2001, 2003
* David Mosberger-Tang <davidm@xxxxxxxxxx>, Hewlett-Packard Co
@@ -122,8 +124,6 @@

# ifndef __ASSEMBLY__

-# include <linux/types.h>
-
/* Avoid too many header ordering problems. */
struct siginfo;

--
Jeff Mahoney
SuSE Labs
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