netdev - Re: [PATCH] net: NETCONSOLE_DYNAMIC need CONFIGFS

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Message-ID: <20110125083915.GE13618@cr0.nay.redhat.com>
Date:	Tue, 25 Jan 2011 16:39:15 +0800
From:	Américo Wang <xiyou.wangcong@...il.com>
To:	Yong Zhang <yong.zhang0@...il.com>
Cc:	linux-kernel@...r.kernel.org, netdev@...r.kernel.org,
	nab@...ux-iscsi.org, "David S. Miller" <davem@...emloft.net>,
	Kevin Hilman <khilman@...prootsystems.com>
Subject: Re: [PATCH] net: NETCONSOLE_DYNAMIC need CONFIGFS_FS=y

On Tue, Jan 25, 2011 at 04:22:28PM +0800, Yong Zhang wrote:
>With CONFIGFS_FS=m && NETCONSOLE_DYNAMIC=y, build error:
>
>drivers/built-in.o: In function `netconsole_target_put':
>build/drivers/net/netconsole.c:133: undefined reference to `config_item_put'
>drivers/built-in.o: In function `netconsole_target_get':
>build/drivers/net/netconsole.c:127: undefined reference to `config_item_get'
>build/drivers/net/netconsole.c:127: undefined reference to `config_item_get'
>drivers/built-in.o: In function `netconsole_target_put':
>build/drivers/net/netconsole.c:133: undefined reference to `config_item_put'
>drivers/built-in.o: In function `drop_netconsole_target':
>build/drivers/net/netconsole.c:634: undefined reference to `config_item_put'
>drivers/built-in.o: In function `make_netconsole_target':
>build/drivers/net/netconsole.c:607: undefined reference to `config_item_init_type_name'
>drivers/built-in.o: In function `dynamic_netconsole_init':
>build/drivers/net/netconsole.c:109: undefined reference to `config_group_init'
>build/drivers/net/netconsole.c:111: undefined reference to `configfs_register_subsystem'
>drivers/built-in.o: In function `dynamic_netconsole_exit':
>build/drivers/net/netconsole.c:116: undefined reference to `configfs_unregister_subsystem'
>

Yeah, this was reported, another way to fix this is "select CONFIGFS_FS".
Using "select" makes you configure NETCONSOLE_DYNAMIC without caring
about if you have configured CONFIGFS_FS=y, which seems better.

Thanks.
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