From: Hin-Tak Leung <htl10@users.sourceforge.net>
To: "John W. Linville" <linville@tuxdriver.com>
Cc: Larry Finger <Larry.Finger@lwfinger.net>,
Serafeim Zanikolas <sez@debian.org>,
herton@mandriva.com.br, joe@perches.com, davem@davemloft.net,
linux-wireless@vger.kernel.org, netdev@vger.kernel.org,
linux-kernel@vger.kernel.org
Subject: Re: [PATCH] drivers: rtl818x: request DMA-able memory
Date: Mon, 25 Oct 2010 16:39:58 +0100 (BST) [thread overview]
Message-ID: <902045.66378.qm@web29504.mail.ird.yahoo.com> (raw)
In-Reply-To: <20101025142232.GC2414@tuxdriver.com>
--- On Mon, 25/10/10, John W. Linville <linville@tuxdriver.com> wrote:
> > I had a quick look for similiar constructs and AFAIK
> only the
> > b43/b43legacy drivers uses DMA buffers. Seems to be a
> rare practice.
> > Is that something we should or should not do?
>
> It doesn't mean what you think it means. It is a
> relic of the past,
> used to indicate memory below 16MB so that ISA devices
> could do DMA.
okay - sorry about the confusion - I was grep'ing for GFP_DMA and only b43/b43lagacy have it and it is relatively rare. AFAIK none of the rtl8187 devices are non-USB... probably a NACK then, but I should ask Serafeim if there is a reason for him to submit this patch? (other than "it says dma"...)
Hin-tak
next prev parent reply other threads:[~2010-10-25 15:46 UTC|newest]
Thread overview: 9+ messages / expand[flat|nested] mbox.gz Atom feed top
[not found] <1287952327-9924-1-git-send-email-sez@debian.org>
2010-10-25 13:24 ` [PATCH] drivers: rtl818x: request DMA-able memory Larry Finger
2010-10-25 14:11 ` Hin-Tak Leung
2010-10-25 14:22 ` John W. Linville
2010-10-25 15:39 ` Hin-Tak Leung [this message]
[not found] ` <902045.66378.qm-gyycVyw5OoDyX4RqAA4FmIglqE1Y4D90QQ4Iyu8u01E@public.gmane.org>
2010-10-25 18:01 ` Larry Finger
2010-10-25 17:44 ` Serafeim Zanikolas
2010-10-25 14:23 ` Johannes Berg
2010-10-25 13:35 ` John W. Linville
2010-10-24 20:32 Serafeim Zanikolas
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=902045.66378.qm@web29504.mail.ird.yahoo.com \
--to=htl10@users.sourceforge.net \
--cc=Larry.Finger@lwfinger.net \
--cc=davem@davemloft.net \
--cc=herton@mandriva.com.br \
--cc=joe@perches.com \
--cc=linux-kernel@vger.kernel.org \
--cc=linux-wireless@vger.kernel.org \
--cc=linville@tuxdriver.com \
--cc=netdev@vger.kernel.org \
--cc=sez@debian.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;
as well as URLs for NNTP newsgroup(s).