From: Greg KH <greg@kroah.com>
To: Alan Cox <alan@lxorguk.ukuu.org.uk>
Cc: muli@il.ibm.com, jdmason@kudzu.us, bzolnier@gmail.com,
linux-ide@vger.kernel.org, linux-pci@atrey.karlin.mff.cuni.cz,
linux-kernel@vger.kernel.org, discuss@x86-64.org
Subject: Re: pci_get_device_reverse(), why does Calgary need this?
Date: Tue, 12 Feb 2008 20:45:36 -0800 [thread overview]
Message-ID: <20080213044536.GC10101@kroah.com> (raw)
In-Reply-To: <20080213021737.72b9815d@core>
On Wed, Feb 13, 2008 at 02:17:37AM +0000, Alan Cox wrote:
> > Why does the calgary driver need this? Can we just use pci_get_device()
> > instead? Why do you need to walk the device list backwards? Do you get
> > false positives going forward?
>
> It doesn't look to be performance critical so the driver can
> pci_get_device until the end and use the final hit anyway.
That would make more sense.
> IDE reverse is more problematic but nobody seems to use it.
I've seen two posters say they use it. I'm wondering what it is really
solving if they use it, and why if it's really needed, scsi never had to
implement such a hack...
thanks,
greg k-h
next prev parent reply other threads:[~2008-02-13 6:02 UTC|newest]
Thread overview: 45+ messages / expand[flat|nested] mbox.gz Atom feed top
2008-02-13 0:15 "ide=reverse" do we still need this? Greg KH
2008-02-13 0:16 ` pci_get_device_reverse(), why does Calgary " Greg KH
2008-02-13 2:17 ` Alan Cox
2008-02-13 4:45 ` Greg KH [this message]
2008-02-13 12:34 ` Bartlomiej Zolnierkiewicz
2008-02-13 17:28 ` Greg KH
2008-02-13 18:16 ` Greg KH
2008-02-13 22:20 ` Bartlomiej Zolnierkiewicz
2008-02-13 23:41 ` Greg KH
2008-02-14 0:02 ` Bartlomiej Zolnierkiewicz
2008-02-14 4:58 ` Greg KH
2008-02-14 13:09 ` Sergei Shtylyov
2008-02-14 7:44 ` [discuss] " Andreas Jaeger
2008-02-14 12:11 ` Bartlomiej Zolnierkiewicz
2008-02-15 7:17 ` Greg KH
2008-02-20 0:39 ` Greg KH
2008-02-13 9:32 ` Muli Ben-Yehuda
2008-02-13 17:32 ` Greg KH
2008-02-13 17:47 ` Muli Ben-Yehuda
2008-02-13 18:14 ` Greg KH
2008-02-15 7:17 ` Greg KH
2008-02-15 7:48 ` Muli Ben-Yehuda
2008-02-15 15:20 ` Greg KH
2008-02-15 15:31 ` Sam Ravnborg
2008-02-15 15:46 ` yong xue
2008-02-15 18:28 ` Greg KH
2008-02-17 7:53 ` Muli Ben-Yehuda
2008-02-13 1:41 ` "ide=reverse" do we still " Rene Herman
2008-02-13 4:44 ` Greg KH
2008-02-13 12:06 ` Rene Herman
2008-02-13 12:16 ` Michael Ellerman
2008-02-13 12:46 ` Rene Herman
2008-02-13 22:39 ` Michael Ellerman
2008-02-13 12:57 ` Rene Herman
2008-02-14 17:16 ` Bill Davidsen
2008-02-15 13:58 ` Matthew Wilcox
2008-02-13 2:43 ` Ken Moffat
2008-02-13 4:43 ` Greg KH
2008-02-13 15:32 ` Ken Moffat
2008-02-19 15:08 ` Ken Moffat
2008-02-13 7:54 ` [discuss] " Dirk GOUDERS
2008-02-13 8:26 ` Greg KH
2008-02-13 8:54 ` Dirk GOUDERS
2008-02-13 20:00 ` Dirk GOUDERS
2008-02-13 20:48 ` Greg KH
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=20080213044536.GC10101@kroah.com \
--to=greg@kroah.com \
--cc=alan@lxorguk.ukuu.org.uk \
--cc=bzolnier@gmail.com \
--cc=discuss@x86-64.org \
--cc=jdmason@kudzu.us \
--cc=linux-ide@vger.kernel.org \
--cc=linux-kernel@vger.kernel.org \
--cc=linux-pci@atrey.karlin.mff.cuni.cz \
--cc=muli@il.ibm.com \
/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;
as well as URLs for NNTP newsgroup(s).