From: David Brownell <david-b@pacbell.net>
To: dsaxena@plexity.net
Cc: Benjamin Herrenschmidt <benh@kernel.crashing.org>,
Linus Torvalds <torvalds@osdl.org>, Greg KH <greg@kroah.com>,
Andrew Morton <akpm@osdl.org>,
Linux-USB <linux-usb-devel@lists.sourceforge.net>,
Kernel Mailing List <linux-kernel@vger.kernel.org>
Subject: Re: [linux-usb-devel] Re: [BK PATCH] USB update for 2.6.3
Date: Fri, 20 Feb 2004 00:43:48 -0800 [thread overview]
Message-ID: <4035C8C4.8010605@pacbell.net> (raw)
In-Reply-To: <20040220080801.GA6786@plexity.net>
Deepak Saxena wrote:
> On Feb 20 2004, at 18:47, Benjamin Herrenschmidt was caught saying:
>
>>>If you mean the USB target device itself, can't you walk the
>>>tree until you find a device that is no longer on bus_type
>>>usb to determine your root?
>>
>>I don't feel like walking the tree on each pci_dma access
Why should that be needed though?
> I never said it would be pretty. :)
Well, usb_device->bus->controller is the only access that
should be needed ... much prettier than a tree walk! It's
set up as part of device enumeration.
Some of the usb_buffer_*() mapping calls could probably
start to get inlined now, using the generic DMA calls.
- Dave
next prev parent reply other threads:[~2004-02-20 8:44 UTC|newest]
Thread overview: 32+ messages / expand[flat|nested] mbox.gz Atom feed top
2004-02-20 1:28 [BK PATCH] USB update for 2.6.3 Greg KH
2004-02-20 5:58 ` Linus Torvalds
2004-02-20 6:03 ` Benjamin Herrenschmidt
2004-02-20 6:30 ` Linus Torvalds
2004-02-20 6:28 ` Benjamin Herrenschmidt
2004-02-20 6:47 ` Linus Torvalds
2004-02-20 6:42 ` Benjamin Herrenschmidt
2004-02-20 7:00 ` Greg KH
2004-02-20 7:06 ` Benjamin Herrenschmidt
2004-02-20 7:58 ` [linux-usb-devel] " David Brownell
2004-02-20 7:03 ` Linus Torvalds
2004-02-20 7:04 ` David S. Miller
2004-02-20 7:10 ` Benjamin Herrenschmidt
2004-02-20 7:32 ` David S. Miller
2004-02-20 15:15 ` Linus Torvalds
2004-02-20 18:15 ` Hollis Blanchard
2004-02-20 18:39 ` Linus Torvalds
2004-02-20 19:20 ` Hollis Blanchard
2004-02-20 19:32 ` Linus Torvalds
2004-02-20 22:40 ` [linux-usb-devel] " Benjamin Herrenschmidt
2004-02-20 19:30 ` Alan Stern
2004-02-20 7:08 ` Benjamin Herrenschmidt
2004-02-20 8:08 ` David Brownell
2004-02-20 9:26 ` Russell King
2004-02-20 7:40 ` Deepak Saxena
2004-02-20 7:47 ` [linux-usb-devel] " Benjamin Herrenschmidt
2004-02-20 8:08 ` Deepak Saxena
2004-02-20 8:43 ` David Brownell [this message]
2004-02-20 8:48 ` Benjamin Herrenschmidt
2004-02-20 9:27 ` Russell King
[not found] <fa.d7mjamc.1l40pri@ifi.uio.no>
2004-02-20 6:34 ` Andy Lutomirski
2004-02-20 15:31 ` [linux-usb-devel] " Paulo Marques
[not found] <fa.ck6rcsq.nl8r18@ifi.uio.no>
[not found] ` <fa.eul0v67.1p62arn@ifi.uio.no>
2004-03-04 18:05 ` Andy Lutomirski
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=4035C8C4.8010605@pacbell.net \
--to=david-b@pacbell.net \
--cc=akpm@osdl.org \
--cc=benh@kernel.crashing.org \
--cc=dsaxena@plexity.net \
--cc=greg@kroah.com \
--cc=linux-kernel@vger.kernel.org \
--cc=linux-usb-devel@lists.sourceforge.net \
--cc=torvalds@osdl.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 a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox