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Date: Thu, 1 Oct 2015 10:23:33 +0200
From: Ingo Molnar <mingo@kernel.org>
To: Ben Hutchings <ben@decadent.org.uk>
Cc: x86@kernel.org, LKML <linux-kernel@vger.kernel.org>,
        Peter Zijlstra <a.p.zijlstra@chello.nl>
Subject: Re: [PATCH] x86: uapi: Fix __BITS_PER_LONG for x32
Message-ID: <20151001082333.GA1486@gmail.com>
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* Ben Hutchings <ben@decadent.org.uk> wrote:

> diff --git a/arch/x86/include/uapi/asm/bitsperlong.h b/arch/x86/include/uapi/asm/bitsperlong.h
> index b0ae1c4..217909b 100644
> --- a/arch/x86/include/uapi/asm/bitsperlong.h
> +++ b/arch/x86/include/uapi/asm/bitsperlong.h
> @@ -1,7 +1,7 @@
>  #ifndef __ASM_X86_BITSPERLONG_H
>  #define __ASM_X86_BITSPERLONG_H
>  
> -#ifdef __x86_64__
> +#if defined(__x86_64__) && !defined(__ILP32__)
>  # define __BITS_PER_LONG 64

Can we write this as:

   #ifdef __ILP64__

?

Thanks,

	Ingo