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 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.