linux-kernel - Re: [PATCH v3 3/6] dma-mapping: Remove dma_check

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Message-ID: <20190718084230.GB24562@lst.de>
Date:   Thu, 18 Jul 2019 10:42:30 +0200
From:   Christoph Hellwig <hch@....de>
To:     Thiago Jung Bauermann <bauerman@...ux.ibm.com>
Cc:     x86@...nel.org, iommu@...ts.linux-foundation.org,
        linux-fsdevel@...r.kernel.org, linuxppc-dev@...ts.ozlabs.org,
        linux-s390@...r.kernel.org, linux-kernel@...r.kernel.org,
        Thomas Gleixner <tglx@...utronix.de>,
        Ingo Molnar <mingo@...hat.com>, Borislav Petkov <bp@...en8.de>,
        "H. Peter Anvin" <hpa@...or.com>, Christoph Hellwig <hch@....de>,
        Marek Szyprowski <m.szyprowski@...sung.com>,
        Robin Murphy <robin.murphy@....com>,
        Konrad Rzeszutek Wilk <konrad.wilk@...cle.com>,
        Alexey Dobriyan <adobriyan@...il.com>,
        Thomas Lendacky <Thomas.Lendacky@....com>,
        Halil Pasic <pasic@...ux.ibm.com>,
        Mike Anderson <andmike@...ux.ibm.com>,
        Ram Pai <linuxram@...ibm.com>
Subject: Re: [PATCH v3 3/6] dma-mapping: Remove dma_check_mask()

On Thu, Jul 18, 2019 at 12:28:55AM -0300, Thiago Jung Bauermann wrote:
> sme_active() is an x86-specific function so it's better not to call it from
> generic code. Christoph Hellwig mentioned that "There is no reason why we
> should have a special debug printk just for one specific reason why there
> is a requirement for a large DMA mask.", so just remove dma_check_mask().
> 
> Signed-off-by: Thiago Jung Bauermann <bauerman@...ux.ibm.com>

Looks good,

Reviewed-by: Christoph Hellwig <hch@....de>