linux-kernel - Re: [PATCH v5 4/4] uio_dmem_genirq: UIO_MEM_DMA

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Message-ID: <ZcE8phru3Nkp2J0s@rhel-developer-toolbox-latest>
Date: Mon, 5 Feb 2024 11:53:10 -0800
From: Chris Leech <cleech@...hat.com>
To: Simon Horman <horms@...nel.org>
Cc: Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
	Nilesh Javali <njavali@...vell.com>, Christoph Hellwig <hch@....de>,
	John Meneghini <jmeneghi@...hat.com>, Lee Duncan <lduncan@...e.com>,
	Mike Christie <michael.christie@...cle.com>,
	Hannes Reinecke <hare@...nel.org>, netdev@...r.kernel.org,
	linux-kernel@...r.kernel.org, linux-scsi@...r.kernel.org,
	GR-QLogic-Storage-Upstream@...vell.com
Subject: Re: [PATCH v5 4/4] uio_dmem_genirq: UIO_MEM_DMA_COHERENT conversion

On Sun, Feb 04, 2024 at 10:19:03AM +0000, Simon Horman wrote:
> On Thu, Feb 01, 2024 at 03:34:00PM -0800, Chris Leech wrote:
..
> > @@ -264,7 +257,8 @@ static int uio_dmem_genirq_probe(struct platform_device *pdev)
> >  					" dynamic and fixed memory regions.\n");
> >  			break;
> >  		}
> > -		uiomem->memtype = UIO_MEM_PHYS;
> > +		uiomem->memtype = UIO_MEM_DMA_COHERENT;
> > +		uiomem->dma_device = &pdev->dev,
> 
> Hi Chris,
> 
> a nit from my side.
> 
> Probably the ',' would be better written as a ';' here.
> I don't think this is a bug, but using comma like this is
> somewhat unexpected and confusing.
> 
> Flagged by clang-17 with -Wcomma

That's an embarrassing typo to slip through.
I'll fix this,and add the kdoc comments for the API additions.

Thanks,
- Chris