From: Greg Kroah-Hartman <gregkh@linuxfoundation•org>
To: Bart Van Assche <bart.vanassche@sandisk•com>
Cc: Doug Ledford <dledford@redhat•com>,
linux-rdma@vger•kernel.org, linux-kernel@vger•kernel.org,
Aurelien Jacquiot <a-jacquiot@ti•com>,
Catalin Marinas <catalin.marinas@arm•com>,
Chris Zankel <chris@zankel•net>,
David Howells <dhowells@redhat•com>,
"David S . Miller" <davem@davemloft•net>,
Fenghua Yu <fenghua.yu@intel•com>,
Geert Uytterhoeven <geert@linux-m68k•org>,
Geoff Levand <geoff@infradead•org>,
"H . Peter Anvin" <hpa@zytor•com>,
Haavard Skinnemoen <hskinnemoen@gmail•com>,
Hans-Christian Egtvedt <egtvedt@samfundet•no>,
Helge Deller <deller@gmx•de>, Ingo Molnar <mingo@redhat•com>,
"James E . J . Bottomley" <jejb@parisc-linux•org>,
Jesper Nilsson <jesper.nilsson@axis•com>,
Joerg Roedel <joro@8bytes•org>, Jon Mason <jdmason@kudzu•us>,
Jonas Bonn <jonas@southpole•se>, Ley Foon Tan <lftan@altera•com>,
Mark Salter <msalter@redhat•com>,
Max Filippov <jcmvbkbc@gmail•com>,
Mikael Starvik <starvik@axis•com>,
Muli Ben-Yehuda <mulix@mulix•org>, Rich Felker <dalias@libc•org>,
Russell King <linux@armlinux•org.uk>,
Stafford Horne <shorne@gmail•com>,
Stefan Kristiansson <stefan.kristiansson@saunalahti•fi>,
Thomas Gleixner <tglx@linutronix•de>,
Tony Luck <tony.luck@intel•com>,
Will Deacon <will.deacon@arm•com>,
x86@kernel•org, Yoshinori Sato <ysato@users•sourceforge.jp>,
adi-buildroot-devel@lists•sourceforge.net,
iommu@lists•linux-foundation.org, linux-alpha@vger•kernel.org,
linux-am33-list@redhat•com, linux-arm-kernel@lists•infradead.org,
linux-c6x-dev@linux-c6x•org, linux-cris-kernel@axis•com,
linux-hexagon@vger•kernel.org, linux-ia64@vger•kernel.org,
linux-m68k@lists•linux-m68k.org, linux-metag@vger•kernel.org,
linux-mips@linux-mips•org, linux-parisc@vger•kernel.org,
linux-pci@vger•kernel.org, linux-s390@vger•kernel.org,
linux-sh@vger•kernel.org, linux-snps-arc@lists•infradead.org,
linux-xtensa@linux-xtensa•org, linuxppc-dev@lists•ozlabs.org,
nios2-dev@lists•rocketboards.org, openrisc@lists•librecores.org,
sparclinux@vger•kernel.org,
uclinux-h8-devel@lists•sourceforge.jp
Subject: Re: [PATCH 2/9] Move dma_ops from archdata into struct device
Date: Wed, 11 Jan 2017 07:48:03 +0100 [thread overview]
Message-ID: <20170111064803.GB26893@kroah.com> (raw)
In-Reply-To: <20170111005648.14988-3-bart.vanassche@sandisk.com>
On Tue, Jan 10, 2017 at 04:56:41PM -0800, Bart Van Assche wrote:
> Several RDMA drivers, e.g. drivers/infiniband/hw/qib, use the CPU to
> transfer data between memory and PCIe adapter. Because of performance
> reasons it is important that the CPU cache is not flushed when such
> drivers transfer data. Make this possible by allowing these drivers to
> override the dma_map_ops pointer. Additionally, introduce the function
> set_dma_ops() that will be used by a later patch in this series.
When you say things like "additionally", that's a huge flag that this
needs to be split up into multiple patches. No need to add
set_dma_ops() here in this patch.
And I'd argue that it should be dma_ops_set(), and dma_ops_get(), just
to keep the namespace sane, but that's probably a different set of
patches...
thanks,
greg k-h
next prev parent reply other threads:[~2017-01-11 6:47 UTC|newest]
Thread overview: 10+ messages / expand[flat|nested] mbox.gz Atom feed top
[not found] <20170111005648.14988-1-bart.vanassche@sandisk.com>
2017-01-11 0:56 ` [PATCH 1/9] treewide: Constify most dma_map_ops structures Bart Van Assche
2017-01-11 0:56 ` [PATCH 2/9] Move dma_ops from archdata into struct device Bart Van Assche
2017-01-11 6:46 ` Greg Kroah-Hartman
2017-01-11 18:03 ` Bart Van Assche
2017-01-11 20:29 ` gregkh
2017-01-11 6:48 ` Greg Kroah-Hartman [this message]
2017-01-11 18:17 ` Bart Van Assche
2017-01-11 20:31 ` gregkh
2017-01-11 22:28 ` Bart Van Assche
2017-01-12 7:35 ` gregkh
Reply instructions:
You may reply publicly to this message via plain-text email
using any one of the following methods:
* Save the following mbox file, import it into your mail client,
and reply-to-all from there: mbox
Avoid top-posting and favor interleaved quoting:
https://en.wikipedia.org/wiki/Posting_style#Interleaved_style
* Reply using the --to, --cc, and --in-reply-to
switches of git-send-email(1):
git send-email \
--in-reply-to=20170111064803.GB26893@kroah.com \
--to=gregkh@linuxfoundation$(echo .)org \
--cc=a-jacquiot@ti$(echo .)com \
--cc=adi-buildroot-devel@lists$(echo .)sourceforge.net \
--cc=bart.vanassche@sandisk$(echo .)com \
--cc=catalin.marinas@arm$(echo .)com \
--cc=chris@zankel$(echo .)net \
--cc=dalias@libc$(echo .)org \
--cc=davem@davemloft$(echo .)net \
--cc=deller@gmx$(echo .)de \
--cc=dhowells@redhat$(echo .)com \
--cc=dledford@redhat$(echo .)com \
--cc=egtvedt@samfundet$(echo .)no \
--cc=fenghua.yu@intel$(echo .)com \
--cc=geert@linux-m68k$(echo .)org \
--cc=geoff@infradead$(echo .)org \
--cc=hpa@zytor$(echo .)com \
--cc=hskinnemoen@gmail$(echo .)com \
--cc=iommu@lists$(echo .)linux-foundation.org \
--cc=jcmvbkbc@gmail$(echo .)com \
--cc=jdmason@kudzu$(echo .)us \
--cc=jejb@parisc-linux$(echo .)org \
--cc=jesper.nilsson@axis$(echo .)com \
--cc=jonas@southpole$(echo .)se \
--cc=joro@8bytes$(echo .)org \
--cc=lftan@altera$(echo .)com \
--cc=linux-alpha@vger$(echo .)kernel.org \
--cc=linux-am33-list@redhat$(echo .)com \
--cc=linux-arm-kernel@lists$(echo .)infradead.org \
--cc=linux-c6x-dev@linux-c6x$(echo .)org \
--cc=linux-cris-kernel@axis$(echo .)com \
--cc=linux-hexagon@vger$(echo .)kernel.org \
--cc=linux-ia64@vger$(echo .)kernel.org \
--cc=linux-kernel@vger$(echo .)kernel.org \
--cc=linux-m68k@lists$(echo .)linux-m68k.org \
--cc=linux-metag@vger$(echo .)kernel.org \
--cc=linux-mips@linux-mips$(echo .)org \
--cc=linux-parisc@vger$(echo .)kernel.org \
--cc=linux-pci@vger$(echo .)kernel.org \
--cc=linux-rdma@vger$(echo .)kernel.org \
--cc=linux-s390@vger$(echo .)kernel.org \
--cc=linux-sh@vger$(echo .)kernel.org \
--cc=linux-snps-arc@lists$(echo .)infradead.org \
--cc=linux-xtensa@linux-xtensa$(echo .)org \
--cc=linux@armlinux$(echo .)org.uk \
--cc=linuxppc-dev@lists$(echo .)ozlabs.org \
--cc=mingo@redhat$(echo .)com \
--cc=msalter@redhat$(echo .)com \
--cc=mulix@mulix$(echo .)org \
--cc=nios2-dev@lists$(echo .)rocketboards.org \
--cc=openrisc@lists$(echo .)librecores.org \
--cc=shorne@gmail$(echo .)com \
--cc=sparclinux@vger$(echo .)kernel.org \
--cc=starvik@axis$(echo .)com \
--cc=stefan.kristiansson@saunalahti$(echo .)fi \
--cc=tglx@linutronix$(echo .)de \
--cc=tony.luck@intel$(echo .)com \
--cc=uclinux-h8-devel@lists$(echo .)sourceforge.jp \
--cc=will.deacon@arm$(echo .)com \
--cc=x86@kernel$(echo .)org \
--cc=ysato@users$(echo .)sourceforge.jp \
/path/to/YOUR_REPLY
https://kernel.org/pub/software/scm/git/docs/git-send-email.html
Be sure your reply has a Subject: header at the top and a blank line
before the message body.
This is a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox