From: Flavio Leitner <fbl@redhat.com>
To: "Michael Chan" <mchan@broadcom.com>
Cc: davem@davemloft.net, netdev@vger.kernel.org
Subject: Re: [PATCH net-next] bnx2: Close device if tx_timeout reset fails
Date: Sat, 16 Jul 2011 00:16:06 -0300 [thread overview]
Message-ID: <20110716001606.528a55c8@asterix.rh> (raw)
In-Reply-To: <1310748838-30877-1-git-send-email-mchan@broadcom.com>
On Fri, 15 Jul 2011 09:53:58 -0700
"Michael Chan" <mchan@broadcom.com> wrote:
...
> To fix it, we call dev_close() if bnx2_init_nic() fails.
> One minor wrinkle to deal with is the cancel_work_sync()
> call in bnx2_close() to cancel bnx2_reset_task(). The
> call will wait forever because it is trying to cancel
> itself and the workqueue will be stuck.
>
> Since bnx2_reset_task() holds the rtnl_lock() and checks
> for netif_running() before proceeding, there is no need
> to cancel bnx2_reset_task() in bnx2_close() even if
> bnx2_close() and bnx2_reset_task() are running concurrently.
> The rtnl_lock() serializes the 2 calls.
>
> We need to move the cancel_work_sync() call to
> bnx2_remove_one() to make sure it is canceled before freeing
> the netdev struct.
It looks good. I'm traveling now, so I'll test this on Monday.
thanks,
fbl
next prev parent reply other threads:[~2011-07-16 3:16 UTC|newest]
Thread overview: 4+ messages / expand[flat|nested] mbox.gz Atom feed top
2011-07-15 16:53 [PATCH net-next] bnx2: Close device if tx_timeout reset fails Michael Chan
2011-07-16 3:16 ` Flavio Leitner [this message]
2011-07-18 23:24 ` Flavio Leitner
2011-07-16 17:13 ` David Miller
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