linux-kernel - Re: [PATCH v3 2/3] IB/qib: use arch_phys_wc

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Message-ID: <20150421205716.GA474@obsidianresearch.com>
Date:	Tue, 21 Apr 2015 14:57:16 -0600
From:	Jason Gunthorpe <jgunthorpe@...idianresearch.com>
To:	"Luis R. Rodriguez" <mcgrof@...not-panic.com>
Cc:	infinipath@...el.com, roland@...nel.org, sean.hefty@...el.com,
	hal.rosenstock@...il.com, linux-rdma@...r.kernel.org,
	luto@...capital.net, mst@...hat.com, cocci@...teme.lip6.fr,
	"Luis R. Rodriguez" <mcgrof@...e.com>,
	Toshi Kani <toshi.kani@...com>,
	Rickard Strandqvist <rickard_strandqvist@...ctrumdigital.se>,
	Mike Marciniszyn <mike.marciniszyn@...el.com>,
	Roland Dreier <roland@...estorage.com>,
	Dennis Dalessandro <dennis.dalessandro@...el.com>,
	Suresh Siddha <sbsiddha@...il.com>,
	Ingo Molnar <mingo@...e.hu>,
	Thomas Gleixner <tglx@...utronix.de>,
	Juergen Gross <jgross@...e.com>,
	Daniel Vetter <daniel.vetter@...ll.ch>,
	Dave Airlie <airlied@...hat.com>,
	Bjorn Helgaas <bhelgaas@...gle.com>,
	Antonino Daplas <adaplas@...il.com>,
	Jean-Christophe Plagniol-Villard <plagnioj@...osoft.com>,
	Tomi Valkeinen <tomi.valkeinen@...com>,
	Dave Hansen <dave.hansen@...ux.intel.com>,
	Arnd Bergmann <arnd@...db.de>,
	Stefan Bader <stefan.bader@...onical.com>,
	konrad.wilk@...cle.com, ville.syrjala@...ux.intel.com,
	david.vrabel@...rix.com, jbeulich@...e.com,
	Roger Pau Monné <roger.pau@...rix.com>,
	linux-fbdev@...r.kernel.org, linux-kernel@...r.kernel.org,
	xen-devel@...ts.xensource.com
Subject: Re: [PATCH v3 2/3] IB/qib: use arch_phys_wc_add()

On Tue, Apr 21, 2015 at 01:37:55PM -0700, Luis R. Rodriguez wrote:
> From: "Luis R. Rodriguez" <mcgrof@...e.com>
> 
> This driver already makes use of ioremap_wc() on PIO buffers,
> so convert it to use arch_phys_wc_add().

This is probably OK, but I think you should also remove the qib_wc_pat
module parameter.

Jason
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