netdev - Re: [PATCH V3] net/mlx4: Get rid of page operation after dma_alloc

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Message-ID: <20181220174448.GA21149@lst.de>
Date:   Thu, 20 Dec 2018 18:44:48 +0100
From:   Christoph Hellwig <hch@....de>
To:     Jason Gunthorpe <jgg@...pe.ca>
Cc:     Stephen Warren <swarren@...dotorg.org>,
        Tariq Toukan <tariqt@...lanox.com>, xavier.huwei@...wei.com,
        netdev@...r.kernel.org, linux-rdma@...r.kernel.org,
        Doug Ledford <dledford@...hat.com>,
        Christoph Hellwig <hch@....de>,
        Stephen Warren <swarren@...dia.com>
Subject: Re: [PATCH V3] net/mlx4: Get rid of page operation after
 dma_alloc_coherent

On Thu, Dec 20, 2018 at 10:43:18AM -0700, Jason Gunthorpe wrote:
> >   - chunk->coherent is an int not a bool since checkpatch complains about
> >     using bool in structs; see https://lkml.org/lkml/2017/11/21/384.
> 
> :( bool is much more readable and there is no performance concern in
> this struct. I think checkpatch is overzealous here.

Yes.  Nevermind that this for bool vs bitfield.  A int is worse in
every respect in the criteria used in that mail.