Date: Tue, 12 May 2015 09:28:09 +0200
From: Borislav Petkov <bp@alien8.de>
To: Toshi Kani <toshi.kani@hp.com>
Cc: akpm@linux-foundation.org, hpa@zytor.com, tglx@linutronix.de,
        mingo@redhat.com, linux-mm@kvack.org, x86@kernel.org,
        linux-kernel@vger.kernel.org, dave.hansen@intel.com, Elliott@hp.com,
        pebolle@tiscali.nl
Subject: Re: [PATCH v4 7/7] mtrr, mm, x86: Enhance MTRR checks for KVA huge
 page mapping
Message-ID: <20150512072809.GA3497@pd.tnic>
References: <1427234921-19737-1-git-send-email-toshi.kani@hp.com>
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 <20150509090810.GB4452@pd.tnic>
 <1431372316.23761.440.camel@misato.fc.hp.com>
 <20150511201827.GI15636@pd.tnic>
 <1431376726.23761.471.camel@misato.fc.hp.com>
 <20150511214244.GK15636@pd.tnic>
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On Mon, May 11, 2015 at 04:09:39PM -0600, Toshi Kani wrote:
> There may not be any type conflict with MTRR_TYPE_INVALID.

Because...?

Let me guess: you cannot change this function to return a signed value
which is the type when positive and an error when negative?

> I will change the caller to check MTRR_TYPE_INVALID, and treat it as a
> uniform case.

That would be, of course, also wrong.

-- 
Regards/Gruss,
    Boris.

ECO tip #101: Trim your mails when you reply.
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