[<prev] [next>] [<thread-prev] [thread-next>] [day] [month] [year] [list]
Message-ID: <4C7B951B.3060007@kernel.org>
Date: Mon, 30 Aug 2010 14:25:15 +0300
From: Pekka Enberg <penberg@...nel.org>
To: Brian Gerst <brgerst@...il.com>
CC: hpa@...or.com, x86@...nel.org, linux-kernel@...r.kernel.org
Subject: Re: [PATCH 10/11] x86: Remove unnecessary ifdefs from i387 code.
On 8/30/10 2:21 PM, Brian Gerst wrote:
> FXSR is a required feature on 64-bit, therefore cpu_has_fxsr is always
>>> true.
>> Yes, I realize that but it will still read boot_cpu_data at runtime, no?
> Look at cpu_has(). It checks REQUIRED_MASK* if the feature bit is a
> constant, and returns true without testing the actual bit in
> boot_cpu_data for required features.
Right you are, thanks for the explanation!
--
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@...r.kernel.org
More majordomo info at http://vger.kernel.org/majordomo-info.html
Please read the FAQ at http://www.tux.org/lkml/
Powered by blists - more mailing lists