linux-wireless.vger.kernel.org archive mirror
 help / color / mirror / Atom feed
From: Tilman Schmidt <tilman@imap.cc>
To: Johannes Berg <johannes@sipsolutions.net>
Cc: Jarek Poplawski <jarkao2@gmail.com>,
	David Miller <davem@davemloft.net>,
	hidave.darkstar@gmail.com, linux-kernel@vger.kernel.org,
	tglx@linutronix.de, linux-wireless@vger.kernel.org,
	linux-ppp@vger.kernel.org, netdev@vger.kernel.org,
	paulus@samba.org, Michael Buesch <mb@bu3sch.de>,
	Oliver Hartkopp <oliver@hartkopp.net>
Subject: Re: [PATCH] net: Adjust softirq raising in __napi_schedule
Date: Fri, 23 Oct 2009 16:39:07 +0200	[thread overview]
Message-ID: <4AE1C00B.5010008@imap.cc> (raw)
In-Reply-To: <1256200021.12174.11.camel@johannes.local>

-----BEGIN PGP SIGNED MESSAGE-----
Hash: SHA1

Johannes Berg schrieb:
> On Wed, 2009-10-21 at 23:39 +0200, Jarek Poplawski wrote:
> 
>> I'm not sure I can understand your question. This patch is mainly to
>> avoid using netif_rx()/netif_rx_ni() pair as a test of proper process
>> context handling; IMHO there're better tools for this (lockdep,
>> WARN_ON's).
> 
> I'm saying that it seems to me, as indicated by the API (and without
> proof otherwise that's how it is) the networking layer needs to have
> packets handed to it with softirqs disabled.

Strange. Then what are the two separate functions netif_rx() and
netif_rx_ni() for?

> This really should be obvious. You're fixing the warning at the source
> of the warning, rather than the source of the problem.

Good idea. So please do tell us where the source of the problem is.

Thanks,
Tilman

- --
Tilman Schmidt                    E-Mail: tilman@imap.cc
Bonn, Germany
Diese Nachricht besteht zu 100% aus wiederverwerteten Bits.
Ungeöffnet mindestens haltbar bis: (siehe Rückseite)
-----BEGIN PGP SIGNATURE-----
Version: GnuPG v1.4.4 (MingW32)
Comment: Using GnuPG with Mozilla - http://enigmail.mozdev.org

iD8DBQFK4cALQ3+did9BuFsRAnW8AKCP4ey+gT2RZBYpzx91PaXd11A/PwCgh35g
fhEbJs++1BRIQ3encV8fIm4=
=SSaA
-----END PGP SIGNATURE-----

  reply	other threads:[~2009-10-23 14:39 UTC|newest]

Thread overview: 35+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
     [not found] <20091011095217.GA2200@darkstar>
2009-10-11 10:08 ` NOHZ: local_softirq_pending 08 Johannes Berg
2009-10-11 10:17   ` Michael Buesch
2009-10-11 10:37     ` Johannes Berg
2009-10-11 10:38     ` David Miller
2009-10-11 10:55   ` Dave Young
2009-10-11 11:18   ` Tilman Schmidt
2009-10-11 11:40     ` Johannes Berg
2009-10-12  8:28       ` Tilman Schmidt
2009-10-12 10:32         ` David Miller
2009-10-12 11:25           ` Tilman Schmidt
2009-10-15 11:40             ` Jarek Poplawski
2009-10-15 17:53               ` Jarek Poplawski
2009-10-21 18:46                 ` Tilman Schmidt
2009-10-21 21:19                   ` [PATCH] net: Adjust softirq raising in __napi_schedule Jarek Poplawski
2009-10-21 21:25                     ` Johannes Berg
2009-10-21 21:37                       ` Tilman Schmidt
2009-10-21 21:39                       ` Jarek Poplawski
2009-10-22  8:27                         ` Johannes Berg
2009-10-23 14:39                           ` Tilman Schmidt [this message]
2009-10-23 14:46                             ` Johannes Berg
2009-10-26  7:41                               ` Jarek Poplawski
2009-10-26  7:44                                 ` Johannes Berg
2009-10-26  7:54                                   ` Jarek Poplawski
2009-10-26  7:58                                     ` Johannes Berg
2009-10-26  8:47                                       ` Tilman Schmidt
2009-10-26  8:56                                         ` Johannes Berg
2009-10-27  0:52                                           ` Tilman Schmidt
2009-10-27  7:01                                             ` Johannes Berg
2009-10-22 11:29                         ` David Miller
2009-10-22 12:54                           ` Jarek Poplawski
2009-10-22 23:37                   ` NOHZ: local_softirq_pending 08 Tilman Schmidt
2009-10-23 13:34                     ` Johannes Berg
2009-10-23 14:27                       ` Tilman Schmidt
2009-10-23 14:31                         ` Johannes Berg
2009-10-23 16:33                           ` Tilman Schmidt

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=4AE1C00B.5010008@imap.cc \
    --to=tilman@imap.cc \
    --cc=davem@davemloft.net \
    --cc=hidave.darkstar@gmail.com \
    --cc=jarkao2@gmail.com \
    --cc=johannes@sipsolutions.net \
    --cc=linux-kernel@vger.kernel.org \
    --cc=linux-ppp@vger.kernel.org \
    --cc=linux-wireless@vger.kernel.org \
    --cc=mb@bu3sch.de \
    --cc=netdev@vger.kernel.org \
    --cc=oliver@hartkopp.net \
    --cc=paulus@samba.org \
    --cc=tglx@linutronix.de \
    /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).