From: David Miller <davem@davemloft.net>
To: mroos@linux.ee
Cc: netdev@vger.kernel.org, j@w1.fi, linux-wireless@vger.kernel.org
Subject: Re: [PATCH] fix hostap registration order
Date: Thu, 09 Dec 2010 19:53:15 -0800 (PST) [thread overview]
Message-ID: <20101209.195315.193716225.davem@davemloft.net> (raw)
In-Reply-To: <alpine.SOC.1.00.1012100020110.26229@math.ut.ee>
From: Meelis Roos <mroos@linux.ee>
Date: Fri, 10 Dec 2010 01:19:23 +0200 (EET)
> In 2.6.37-rc4, hostap_pci init gives a WARNING with backtrace telling
> that netif_stop_queue is called before register_netdev. Fix it by moving
> this call after register_netdev. Removes the warning and seems to work,
> but why is the call to netif_stop_queue needed at all after
> register_netdev?
>
> Signed-off-by: Meelis Roos <mroos@linux.ee>
It should simply not touch the queue state at all at this point.
Your change would add a race. At the moment the device is registered
it can be brought up, and then your code will eroneously modify
the queue state.
next prev parent reply other threads:[~2010-12-10 3:52 UTC|newest]
Thread overview: 6+ messages / expand[flat|nested] mbox.gz Atom feed top
2010-12-09 23:19 [PATCH] fix hostap registration order Meelis Roos
2010-12-10 3:53 ` David Miller [this message]
2010-12-10 7:19 ` Meelis Roos
2010-12-10 17:47 ` David Miller
2010-12-17 21:27 ` [PATCH] hostap: remove netif_stop_queue from init Meelis Roos
[not found] ` <alpine.SOC.1.00.1012172324340.24976-ptEonEWSGqKptlylMvRsHA@public.gmane.org>
2010-12-17 21:32 ` David Miller
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