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

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Message-ID: <CALCETrVOEkJ5kqSHRhK1bUQm=5k6oDex7eU5UtvZq_ik-H_KbQ@mail.gmail.com>
Date:	Tue, 21 Apr 2015 14:12:31 -0700
From:	Andy Lutomirski <luto@...capital.net>
To:	"Luis R. Rodriguez" <mcgrof@...not-panic.com>
Cc:	"Marciniszyn, Mike" <mike.marciniszyn@...el.com>,
	Jason Gunthorpe <jgunthorpe@...idianresearch.com>,
	infinipath <infinipath@...el.com>,
	"roland@...nel.org" <roland@...nel.org>,
	"Hefty, Sean" <sean.hefty@...el.com>,
	"hal.rosenstock@...il.com" <hal.rosenstock@...il.com>,
	"linux-rdma@...r.kernel.org" <linux-rdma@...r.kernel.org>,
	"mst@...hat.com" <mst@...hat.com>,
	"cocci@...teme.lip6.fr" <cocci@...teme.lip6.fr>,
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	Roland Dreier <roland@...estorage.com>,
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	"xen-devel@...ts.xensource.com" <xen-devel@...ts.xensource.com>
Subject: Re: [PATCH v3 2/3] IB/qib: use arch_phys_wc_add()

On Tue, Apr 21, 2015 at 2:09 PM, Luis R. Rodriguez
<mcgrof@...not-panic.com> wrote:
> On Tue, Apr 21, 2015 at 1:59 PM, Marciniszyn, Mike
> <mike.marciniszyn@...el.com> wrote:
>>> > 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
>>
>> Revise based on Jason's request and I will do some testing.
>
> I did thiink about this -- but removal of module parameters can often
> times break users of the module parameter, I figured its best to leave
> it to you guys to decide what to do with that, so this leaves it as a
> no-op. Can this series be applied and then you can decide what to do
> to not affect your users on top of this?

As of a few kernel versions ago, unrecognized module parameters no
longer cause the module to refuse to load.

--Andy

>
>  Luis



-- 
Andy Lutomirski
AMA Capital Management, LLC
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