linux-kernel - Re: [PATCH] x86_64: ia32_signal.c: use macro instead of immediate

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Message-ID: <487BCD9C.4030003@zytor.com>
Date:	Mon, 14 Jul 2008 15:05:16 -0700
From:	"H. Peter Anvin" <hpa@...or.com>
To:	Hiroshi Shimamoto <h-shimamoto@...jp.nec.com>
CC:	Ingo Molnar <mingo@...e.hu>, Thomas Gleixner <tglx@...utronix.de>,
	linux-kernel@...r.kernel.org
Subject: Re: [PATCH] x86_64: ia32_signal.c: use macro instead of immediate

Hiroshi Shimamoto wrote:
> From: Hiroshi Shimamoto <h-shimamoto@...jp.nec.com>
> 
> Make and use macro FIX_EFLAGS, instead of immediate value 0x40DD5 in
> ia32_restore_sigcontext().
> 
> +
> +#ifdef CONFIG_X86_32
> +# define FIX_EFLAGS	(__FIX_EFLAGS | X86_EFLAGS_RF)
> +#else
> +# define FIX_EFLAGS	__FIX_EFLAGS
> +#endif
> +

Where did this come from?  First of all, this is in a 64-bit-only file, 
so CONFIG_X86_32 will never be set; second of all, it seems a bit fishy 
that these should be different.

	-hpa
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