From: Joerg Roedel <joerg.roedel@amd.com>
To: Shuah Khan <shuah.khan@hp.com>
Cc: Konrad Rzeszutek Wilk <konrad.wilk@oracle.com>,
Greg KH <greg@kroah.com>, <tglx@linutronix.de>,
<mingo@redhat.com>, <hpa@zytor.com>, <rob@landley.net>,
<akpm@linux-foundation.org>, <bhelgaas@google.com>,
<stern@rowland.harvard.edu>, LKML <linux-kernel@vger.kernel.org>,
<linux-doc@vger.kernel.org>, <devel@linuxdriverproject.org>,
<x86@kernel.org>, <shuahkhan@gmail.com>
Subject: Re: [PATCH] dma-debug: New interfaces to debug dma mapping errors
Date: Tue, 18 Sep 2012 15:34:14 +0200 [thread overview]
Message-ID: <20120918133414.GM2505@amd.com> (raw)
In-Reply-To: <1347921915.3227.143.camel@lorien2>
On Mon, Sep 17, 2012 at 04:45:15PM -0600, Shuah Khan wrote:
> Yeah. I will firm up my ideas a bit and summarize in a day or two. Would
> like to hear your ideas as well at that time, so we can pick the one
> that works the best.
I think the best approach for this functionality is to add a flag to
'struct dma_debug_entry' which tells whether the address has been
checked with dma_mapping error or not. On unmap or driver unload you can
then check for that flag and print a warning when an unchecked address
is detected.
Joerg
--
AMD Operating System Research Center
Advanced Micro Devices GmbH Einsteinring 24 85609 Dornach
General Managers: Alberto Bozzo
Registration: Dornach, Landkr. Muenchen; Registerger. Muenchen, HRB Nr. 43632
next prev parent reply other threads:[~2012-09-18 13:34 UTC|newest]
Thread overview: 30+ messages / expand[flat|nested] mbox.gz Atom feed top
2012-09-17 0:52 [PATCH] dma-debug: New interfaces to debug dma mapping errors Shuah Khan
2012-09-17 2:07 ` Greg KH
2012-09-17 14:45 ` Shuah Khan
2012-09-17 15:25 ` Greg KH
2012-09-17 13:39 ` Konrad Rzeszutek Wilk
2012-09-17 15:52 ` Shuah Khan
2012-09-17 17:23 ` Konrad Rzeszutek Wilk
2012-09-17 22:45 ` Shuah Khan
2012-09-18 13:34 ` Joerg Roedel [this message]
2012-09-18 19:42 ` Shuah Khan
2012-09-18 19:45 ` Konrad Rzeszutek Wilk
2012-09-18 20:34 ` Shuah Khan
2012-09-19 13:08 ` Joerg Roedel
2012-09-19 19:16 ` Shuah Khan
2012-09-26 1:05 ` [PATCH v2] " Shuah Khan
2012-09-26 13:12 ` Konrad Rzeszutek Wilk
2012-09-26 16:23 ` Shuah Khan
2012-09-27 10:20 ` Joerg Roedel
2012-09-27 14:13 ` Shuah Khan
2012-10-03 14:55 ` [PATCH v3] " Shuah Khan
2012-10-03 21:45 ` Andrew Morton
2012-10-04 14:01 ` Konrad Rzeszutek Wilk
2012-10-04 22:16 ` Shuah Khan
2012-10-04 17:38 ` Konrad Rzeszutek Wilk
2012-10-04 22:19 ` Shuah Khan
2012-10-05 1:23 ` [PATCH v4] " Shuah Khan
2012-10-05 22:51 ` Andrew Morton
2012-10-08 17:07 ` Shuah Khan
2012-10-09 21:02 ` Andrew Morton
2012-10-10 21:50 ` Shuah Khan
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=20120918133414.GM2505@amd.com \
--to=joerg.roedel@amd.com \
--cc=akpm@linux-foundation.org \
--cc=bhelgaas@google.com \
--cc=devel@linuxdriverproject.org \
--cc=greg@kroah.com \
--cc=hpa@zytor.com \
--cc=konrad.wilk@oracle.com \
--cc=linux-doc@vger.kernel.org \
--cc=linux-kernel@vger.kernel.org \
--cc=mingo@redhat.com \
--cc=rob@landley.net \
--cc=shuah.khan@hp.com \
--cc=shuahkhan@gmail.com \
--cc=stern@rowland.harvard.edu \
--cc=tglx@linutronix.de \
--cc=x86@kernel.org \
/path/to/YOUR_REPLY
https://kernel.org/pub/software/scm/git/docs/git-send-email.html
* If your mail client supports setting the In-Reply-To header
via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line
before the message body.
This is an external index of several public inboxes,
see mirroring instructions on how to clone and mirror
all data and code used by this external index.