linux-kernel - Re: [PATCH v3 09/21] x86/fpu/xstate: Introduce wrapper functions to organize xstate buffer access

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Message-ID: <3B2E4B77-3180-4E3A-90FE-6BD08FA47A72@intel.com>
Date:   Tue, 9 Feb 2021 15:50:32 +0000
From:   "Bae, Chang Seok" <chang.seok.bae@...el.com>
To:     Borislav Petkov <bp@...e.de>
CC:     Andy Lutomirski <luto@...nel.org>,
        "tglx@...utronix.de" <tglx@...utronix.de>,
        "mingo@...nel.org" <mingo@...nel.org>,
        "x86@...nel.org" <x86@...nel.org>,
        "Brown, Len" <len.brown@...el.com>,
        "Hansen, Dave" <dave.hansen@...el.com>,
        "Liu, Jing2" <jing2.liu@...el.com>,
        "Shankar, Ravi V" <ravi.v.shankar@...el.com>,
        "linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>
Subject: Re: [PATCH v3 09/21] x86/fpu/xstate: Introduce wrapper functions to
 organize xstate buffer access

On Feb 8, 2021, at 04:33, Borislav Petkov <bp@...e.de> wrote:
> On Wed, Dec 23, 2020 at 07:57:05AM -0800, Chang S. Bae wrote:
>> The struct fpu includes two (possible) xstate buffers -- fpu->state and
>> fpu->state_ptr. Instead of open code for accessing one of them, provide a
>> wrapper that covers both cases.
> 
> Right, if you do the thing I suggested - have a single ->xstate pointer
> - then that below is not needed.

Yes. I dropped this patch.

Thanks,
Chang