linux-kernel - Re: [PATCH v3 05/11] scatterlist: use sg

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Message-ID: <CAPcyv4hq5dX=HN=wYZEddOu7yX1SU4EXT0tT1hUUwKpL7txXLQ@mail.gmail.com>
Date:	Mon, 11 May 2015 22:44:25 -0700
From:	Dan Williams <dan.j.williams@...el.com>
To:	Julia Lawall <julia.lawall@...6.fr>
Cc:	"linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>,
	linux-arch@...r.kernel.org, Jens Axboe <axboe@...nel.dk>,
	Rik van Riel <riel@...hat.com>,
	linux-nvdimm <linux-nvdimm@...1.01.org>,
	david <david@...morbit.com>, Christoph Hellwig <hch@....de>,
	Mel Gorman <mgorman@...e.de>, j.glisse@...il.com,
	linux-fsdevel <linux-fsdevel@...r.kernel.org>,
	Andrew Morton <akpm@...ux-foundation.org>,
	Ingo Molnar <mingo@...nel.org>
Subject: Re: [PATCH v3 05/11] scatterlist: use sg_phys()

On Mon, May 11, 2015 at 10:24 PM, Julia Lawall <julia.lawall@...6.fr> wrote:
>
>
> On Tue, 12 May 2015, Dan Williams wrote:
>
>> Coccinelle cleanup to replace open coded sg to physical address
>> translations.  This is in preparation for introducing scatterlists that
>> reference pfn(s) without a backing struct page.
>>
>> // sg_phys.cocci: convert usage page_to_phys(sg_page(sg)) to sg_phys(sg)
>> // usage: make coccicheck COCCI=sg_phys.cocci MODE=patch
>>
>> virtual patch
>> virtual report
>> virtual org
>
> Just for information, you don't need the three lines above.  There are ony
> useful when you want the semantic patch to support several kinds of
> output.
>

Ok, I think I added them from copying a coccicheck script, and if I
delete virtual patch I get

"virtual rule patch not supported"

when running:

make coccicheck COCCI=sg_phys.cocci MODE=patch

I suspect I am invoking it wrong.
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