From: "John W. Linville" <linville@tuxdriver.com>
To: Felix Fietkau <nbd@openwrt.org>
Cc: linux-wireless@vger.kernel.org, mcgrof@qca.qualcomm.com,
rmanohar@qca.qualcomm.com
Subject: Re: [PATCH 3.3 1/4] Revert "ath9k_hw: Fix false tx hung detection in AR9003 chips"
Date: Mon, 5 Mar 2012 14:33:48 -0500 [thread overview]
Message-ID: <20120305193348.GE18128@tuxdriver.com> (raw)
In-Reply-To: <4F4E6D6C.5010605@openwrt.org>
On Wed, Feb 29, 2012 at 07:24:44PM +0100, Felix Fietkau wrote:
> On 2012-02-29 7:08 PM, John W. Linville wrote:
> > On Mon, Feb 27, 2012 at 07:58:39PM +0100, Felix Fietkau wrote:
> >> The approach of this change is flawed, as it triggers tx status processing
> >> from more callsites, yet the chips only have one global tx status queue.
> >> Subsequent patches will properly fix the issue that this one tried to address.
> >>
> >> Signed-off-by: Felix Fietkau <nbd@openwrt.org>
> >
> > How flawed is the current approach? That commit looks like it has been
> > around for months already. Does it really _need_ to be fixed in 3.3?
> It only slightly reduces the severity of the issue it tried to address,
> while adding some ugly race conditions. It is not possible to properly
> fix the issue without a revert of that commit, so I really would like to
> see this patch series in 3.3.
I am happy to take this series for 3.4, but it seems quite late
for 3.3. We have been living with it for a while already.
John
--
John W. Linville Someday the world will need a hero, and you
linville@tuxdriver.com might be all we have. Be ready.
next prev parent reply other threads:[~2012-03-05 19:47 UTC|newest]
Thread overview: 9+ messages / expand[flat|nested] mbox.gz Atom feed top
2012-02-27 18:58 [PATCH 3.3 1/4] Revert "ath9k_hw: Fix false tx hung detection in AR9003 chips" Felix Fietkau
2012-02-27 18:58 ` [PATCH 3.3 2/4] ath9k: do not call ath9k_hw_txprocdesc on AR9003 outside of the tx tasklet Felix Fietkau
2012-02-27 18:58 ` [PATCH 3.3 3/4] ath9k_hw: enable interrupts for beacon tx completion events Felix Fietkau
2012-02-27 18:58 ` [PATCH 3.3 4/4] ath9k: fix drv_tx_last_beacon on AR9003 by processing beacon tx status Felix Fietkau
2012-02-29 18:08 ` [PATCH 3.3 1/4] Revert "ath9k_hw: Fix false tx hung detection in AR9003 chips" John W. Linville
2012-02-29 18:24 ` Felix Fietkau
2012-03-05 19:33 ` John W. Linville [this message]
2012-03-05 20:22 ` Manoharan, Rajkumar
2012-03-05 20:24 ` Felix Fietkau
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=20120305193348.GE18128@tuxdriver.com \
--to=linville@tuxdriver.com \
--cc=linux-wireless@vger.kernel.org \
--cc=mcgrof@qca.qualcomm.com \
--cc=nbd@openwrt.org \
--cc=rmanohar@qca.qualcomm.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).