linux-kernel - Re: [PATCH v3] fusion: remove dead MTRR code

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Message-ID: <CAB=NE6VVcaZ2v8VbSThcT3Kv_FkcB3nqbQLTjrhNPYyLvfd2PQ@mail.gmail.com>
Date:	Fri, 29 May 2015 13:23:25 -0700
From:	"Luis R. Rodriguez" <mcgrof@...e.com>
To:	Sreekanth Reddy <sreekanth.reddy@...gotech.com>,
	"mpt-fusionlinux.pdl" <MPT-FusionLinux.pdl@...gotech.com>,
	Linux SCSI List <linux-scsi@...r.kernel.org>,
	Andrew Morton <akpm@...ux-foundation.org>,
	Sumit.Saxena@...gotech.com, kashyap.desai@...gotech.com,
	JBottomley@...n.com
Cc:	Andy Lutomirski <luto@...capital.net>,
	"Michael S. Tsirkin" <mst@...hat.com>,
	"Luis R. Rodriguez" <mcgrof@...e.com>,
	Toshi Kani <toshi.kani@...com>,
	Christoph Hellwig <hch@...radead.org>,
	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>,
	Antonino Daplas <adaplas@...il.com>,
	Tomi Valkeinen <tomi.valkeinen@...com>,
	Ville Syrjälä <syrjala@....fi>,
	Mel Gorman <mgorman@...e.de>, Vlastimil Babka <vbabka@...e.cz>,
	Borislav Petkov <bp@...e.de>, Davidlohr Bueso <dbueso@...e.de>,
	Jean-Christophe Plagniol-Villard <plagnioj@...osoft.com>,
	"linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>
Subject: Re: [PATCH v3] fusion: remove dead MTRR code

On Wed, Apr 29, 2015 at 12:50 PM, Luis R. Rodriguez <mcgrof@...e.com> wrote:
> On Tue, Apr 21, 2015 at 1:46 PM, Luis R. Rodriguez
> <mcgrof@...not-panic.com> wrote:
>> From: "Luis R. Rodriguez" <mcgrof@...e.com>
>>
>> If and when this gets enabled the driver could should split
>> up IO memory space properly and that is quite a bit of work.
>> Just remove the uncommented dead MTRR code then.
>>
>> There are a few motivations for this:
>>
>> a) Take advantage of PAT when available
>>
>> b) Help bury MTRR code away, MTRR is architecture specific and on
>>    x86 its replaced by PAT
>>
>> c) Help with the goal of eventually using _PAGE_CACHE_UC over
>>    _PAGE_CACHE_UC_MINUS on x86 on ioremap_nocache() (see commit
>>    de33c442e titled "x86 PAT: fix performance drop for glx,
>>    use UC minus for ioremap(), ioremap_nocache() and
>>    pci_mmap_page_range()")
>
> Hey folks, who's tree should this go through if agreeable?

OK its been over 1 month without any replies on this patch which just
removes commented out code.

All the maintainers below bounce and the only e-mail not bouncing is
for Sreekanth Reddy <sreekanth.reddy@...gotech.com>, he hasn't been
seen active on linux-next since Jan 12 2015 when he did a driver bump
for mpt2sas to 20.100.00.00.

What's going on folks? And can this patch go in?

diff --git a/MAINTAINERS b/MAINTAINERS
index aca2886..73dbc02 100644
--- a/MAINTAINERS
+++ b/MAINTAINERS
@@ -6205,10 +6205,7 @@ S:       Maintained
 F:     arch/arm/mach-lpc32xx/

 LSILOGIC MPT FUSION DRIVERS (FC/SAS/SPI)
-M:     Nagalakshmi Nandigama <nagalakshmi.nandigama@...gotech.com>
-M:     Praveen Krishnamoorthy <praveen.krishnamoorthy@...gotech.com>
 M:     Sreekanth Reddy <sreekanth.reddy@...gotech.com>
-M:     Abhijit Mahajan <abhijit.mahajan@...gotech.com>
 L:     MPT-FusionLinux.pdl@...gotech.com
 L:     linux-scsi@...r.kernel.org
 W:     http://www.lsilogic.com/support
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