From: Matt Mackall <mpm@selenic.com>
To: Satyam Sharma <ssatyam@cse.iitk.ac.in>
Cc: Linux Kernel Mailing List <linux-kernel@vger.kernel.org>,
Keiichi Kii <k-keiichi@bx.jp.nec.com>,
Netdev <netdev@vger.kernel.org>,
Joel Becker <joel.becker@oracle.com>,
Stephen Hemminger <shemminger@linux-foundation.org>,
Andrew Morton <akpm@linux-foundation.org>,
David Miller <davem@davemloft.net>
Subject: Re: [PATCH v2 -mm 2/9] netconsole: Remove bogus check
Date: Tue, 10 Jul 2007 04:05:24 -0500 [thread overview]
Message-ID: <20070710090524.GK11115@waste.org> (raw)
In-Reply-To: <20070710091930.23907.24600.sendpatchset@cselinux1.cse.iitk.ac.in>
On Tue, Jul 10, 2007 at 02:49:30PM +0530, Satyam Sharma wrote:
> From: Satyam Sharma <ssatyam@cse.iitk.ac.in>
>
> [2/9] netconsole: Remove bogus check
>
> The (!np.dev) check in write_msg() is bogus (always false), because:
> np.dev is set by netpoll_setup(), which is called by the target init
> code in init_netconsole() _before_ register_console() => write_msg() cannot
> be triggered unless netpoll_setup() returns with success. And that will not
> happen if netpoll_setup() failed to set np.dev. Also np.dev cannot go from
> under us while netconsole is loaded. This is because netpoll_setup() grabs
> a reference for us on that dev. So let's remove the pointless check.
>
> Signed-off-by: Satyam Sharma <ssatyam@cse.iitk.ac.in>
> Cc: Keiichi Kii <k-keiichi@bx.jp.nec.com>
Acked-by: Matt Mackall <mpm@selenic.com>
--
Mathematics is the supreme nostalgia of our time.
next prev parent reply other threads:[~2007-07-10 9:06 UTC|newest]
Thread overview: 36+ messages / expand[flat|nested] mbox.gz Atom feed top
2007-07-10 9:19 [RFC][PATCH v2 -mm 0/9] netconsole: Multiple targets and dynamic reconfigurability Satyam Sharma
2007-07-10 9:19 ` [PATCH v2 -mm 1/9] netconsole: Cleanups, codingstyle, prettyfication Satyam Sharma
2007-07-10 9:02 ` Matt Mackall
2007-07-13 13:40 ` KII Keiichi
2007-07-10 9:19 ` [PATCH v2 -mm 2/9] netconsole: Remove bogus check Satyam Sharma
2007-07-10 9:05 ` Matt Mackall [this message]
2007-07-13 13:41 ` KII Keiichi
2007-07-10 9:19 ` [PATCH v2 -mm 3/9] netconsole: Simplify boot/module option setup logic Satyam Sharma
2007-07-10 9:23 ` Matt Mackall
2007-07-13 13:42 ` KII Keiichi
2007-07-10 9:19 ` [PATCH v2 -mm 4/9] netconsole: Add some useful tips to documentation Satyam Sharma
2007-07-10 9:41 ` Matt Mackall
2007-07-10 12:34 ` Jesper Juhl
2007-07-10 22:10 ` Satyam Sharma
2007-07-11 4:20 ` Joel Becker
2007-07-11 6:05 ` Satyam Sharma
2007-07-11 11:56 ` Jesper Juhl
2007-07-10 9:19 ` [PATCH v2 -mm 5/9] netconsole: Introduce netconsole_target Satyam Sharma
2007-07-13 13:46 ` KII Keiichi
2007-07-10 9:19 ` [PATCH v2 -mm 6/9] netconsole: Introduce netconsole_netdev_notifier Satyam Sharma
2007-07-13 13:47 ` KII Keiichi
2007-07-10 9:19 ` [PATCH v2 -mm 7/9] netconsole: Use netif_running() in write_msg() Satyam Sharma
2007-07-13 13:48 ` KII Keiichi
2007-07-10 9:20 ` [PATCH v2 -mm 8/9] netconsole: Support multiple logging targets Satyam Sharma
2007-07-10 10:23 ` Duane Griffin
2007-07-10 22:17 ` Satyam Sharma
2007-07-11 4:29 ` Joel Becker
2007-07-11 6:24 ` Satyam Sharma
2007-07-13 13:49 ` KII Keiichi
2007-07-10 9:20 ` [PATCH v2 -mm 9/9] netconsole: Support dynamic reconfiguration using configfs Satyam Sharma
2007-07-12 10:04 ` Keiichi KII
2007-07-12 17:08 ` Satyam Sharma
2007-07-13 13:50 ` KII Keiichi
2007-07-11 9:59 ` [RFC][PATCH v2 -mm 0/9] netconsole: Multiple targets and dynamic reconfigurability Keiichi KII
2007-07-13 13:39 ` KII Keiichi
2007-07-13 17:30 ` Satyam Sharma
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