linux-kernel - Re: Deprecating ipath

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Message-ID: <CAB=NE6Xa4WEVjL_mPdneZi9rpZidU9qJLSCyW4OJVVFOXNbahA@mail.gmail.com>
Date:	Fri, 3 Jul 2015 10:19:05 -0700
From:	"Luis R. Rodriguez" <mcgrof@...e.com>
To:	Greg Kroah-Hartman <gregkh@...uxfoundation.org>
Cc:	"Dalessandro, Dennis" <dennis.dalessandro@...el.com>,
	"Marciniszyn, Mike" <mike.marciniszyn@...el.com>,
	Borislav Petkov <bp@...e.de>, Ingo Molnar <mingo@...nel.org>,
	One Thousand Gnomes <gnomes@...rguk.ukuu.org.uk>,
	Doug Ledford <dledford@...hat.com>,
	"linux-rdma@...r.kernel.org" <linux-rdma@...r.kernel.org>,
	"linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>
Subject: Re: Deprecating ipath

On Fri, Jul 3, 2015 at 10:18 AM, Luis R. Rodriguez <mcgrof@...e.com> wrote:
> On Fri, Jul 3, 2015 at 8:36 AM, Greg Kroah-Hartman
> <gregkh@...uxfoundation.org> wrote:
>> On Fri, Jul 03, 2015 at 01:25:25PM +0000, Dalessandro, Dennis wrote:
>>> > -----Original Message-----
>>> > From: linux-rdma-owner@...r.kernel.org [mailto:linux-rdma-
>>> > owner@...r.kernel.org] On Behalf Of Greg Kroah-Hartman
>>> > Sent: Friday, June 26, 2015 12:54 PM
>>> > To: Luis R. Rodriguez
>>> > Cc: Marciniszyn, Mike; Borislav Petkov; Ingo Molnar; One Thousand Gnomes;
>>> > Doug Ledford; linux-rdma@...r.kernel.org; linux-kernel@...r.kernel.org
>>> > Subject: Re: Deprecating ipath
>>> >
>>> > On Fri, Jun 26, 2015 at 09:23:27AM -0700, Luis R. Rodriguez wrote:
>>> > > On Fri, Jun 26, 2015 at 9:17 AM, Marciniszyn, Mike
>>> > > <mike.marciniszyn@...el.com> wrote:
>>> > > > Doug,
>>> > > >
>>> > > > We have been given the go ahead to start the deprecation process for
>>> > thie ipath driver.
>>> > >
>>> > > That's great! Do you mean removal from Linux?
>>> > >
>>> > > > What do I need to do to get that done?
>>> > >
>>> > > Feature removal txt file was removed from the kernel so there is no
>>> > > "schedule" per se, not sure what the process these days is for driver
>>> > > removal. How about punting it to staging for a release or two and then
>>> > > remove it? Not sure if that would be frowned upon or welcomed.
>>> >
>>> > That is the process for driver removal, so of course it is welcomed :)
>>> >
>>> > > That would have the cost of moving history through directories but git
>>> > > --follow helps with that these days. The gain of moving it to staging
>>> > > IMHO would be that if anyone who might care would need to complain
>>> > may
>>> > > do so for a directory change for 1-2 release may spot this easily and
>>> > > the issues would be much less than an immediate removal.
>>> >
>>> > Yes, that's why we do it this way.
>>> >
>>> > Mike, feel free to send me a patch for this if you want me to queue it up for
>>> > 4.3.  For 4.2 it's too late.
>>> >
>>> > thanks,
>>> >
>>> > greg k-h
>>> > --
>>>
>>> Greg, how would you like to consume that patch? There are a number of large
>>> files. We can break things up into a series and send through email. We could
>>> also post a repo somewhere that you can do a pull from. Something else?
>>
>> If you use -M to 'git format-patch' when generating a patch, it will
>> show that you just moved the files around the directory tree, and the
>> patch should be quite small and easy to email and review.
>>
>> In fact, you should use that as a default for all patches, as it's now a
>> standard that normal patch can use to consume, I have this in my
>> .gitalias file:
>>         [alias]
>>                 fp = format-patch -M
>>
>> and just use 'git fp' all the time.
>
> And if you still want to use default regular commands then you can use:
>
> [diff]
>         renamelimit=0

Actually this is to help trigger rename detection to be a bit more
greedy, you still need -M.

 Luis
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