linux-kernel - Re: [PATCH] x86: vm86 - hide X86_VM

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Message-ID: <20080428192039.GA10267@elte.hu>
Date:	Mon, 28 Apr 2008 21:20:39 +0200
From:	Ingo Molnar <mingo@...e.hu>
To:	"H. Peter Anvin" <hpa@...or.com>
Cc:	Cyrill Gorcunov <gorcunov@...il.com>,
	David Woodhouse <dwmw2@...radead.org>,
	LKML <linux-kernel@...r.kernel.org>
Subject: Re: [PATCH] x86: vm86 - hide X86_VM_MASK from userland programs v2


Cyrill,

randconfig testing in x86.git found a build bug and i bisected it to 
your patch - output is below. Config attached. Looks like some config 
file dependency hell problem? The dependencies there definitely need a 
good look and a handful of cleanups as well.

	Ingo

--------------------->
In file included from include/asm/vm86.h:139,
                 from include/asm/processor.h:11,
                 from include/asm/atomic_32.h:6,
                 from include/asm/atomic.h:3,
                 from include/linux/crypto.h:21,
                 from arch/x86/kernel/asm-offsets_32.c:8,
                 from arch/x86/kernel/asm-offsets.c:3:
include/asm/ptrace.h: In function 'user_mode_vm':
include/asm/ptrace.h:207: error: 'X86_VM_MASK' undeclared (first use in this function)
include/asm/ptrace.h:207: error: (Each undeclared identifier is reported only once
include/asm/ptrace.h:207: error: for each function it appears in.)
include/asm/ptrace.h: In function 'v8086_mode':
include/asm/ptrace.h:217: error: 'X86_VM_MASK' undeclared (first use in this function)

View attachment "config" of type "text/plain" (50304 bytes)