linux-kernel - Re: [PATCH 1/2] x86/io: add interface to reserve io memtype for a resource range. (v1.1)

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Date:   Tue, 25 Oct 2016 13:10:18 +0200 (CEST)
From:   Thomas Gleixner <tglx@...utronix.de>
To:     Dave Airlie <airlied@...hat.com>
cc:     mcgrof@...e.com, torvalds@...ux-foundation.org,
        dan.j.williams@...el.com, x86@...nel.org,
        linux-kernel@...r.kernel.org, dri-devel@...ts.freedesktop.org,
        Toshi Kani <toshi.kani@...com>, Borislav Petkov <bp@...en8.de>,
        "H. Peter Anvin" <hpa@...or.com>,
        Andy Lutomirski <luto@...nel.org>,
        Denys Vlasenko <dvlasenk@...hat.com>,
        Brian Gerst <brgerst@...il.com>
Subject: Re: [PATCH 1/2] x86/io: add interface to reserve io memtype for a
 resource range. (v1.1)

On Mon, 24 Oct 2016, Dave Airlie wrote:
> A recent change to the mm code in:
> 87744ab3832b83ba71b931f86f9cfdb000d07da5

nit: 12 digits of the SHA1 are sufficient :)

> +int arch_io_reserve_memtype_wc(resource_size_t start, resource_size_t size)
> +{
> +	enum page_cache_mode type = _PAGE_CACHE_MODE_WC;

Empty line between variable declaration and code please

> +	return io_reserve_memtype(start, start + size, &type);

Other than that:

Reviewed-by: Thomas Gleixner <tglx@...utronix.de>