linux-kernel - Re: [PATCH v5] ixgbe: Add module parameter to disable VLAN filter

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Message-Id: <20150521.120713.1811144256149554543.davem@davemloft.net>
Date:	Thu, 21 May 2015 12:07:13 -0400 (EDT)
From:	David Miller <davem@...emloft.net>
To:	h-shimamoto@...jp.nec.com
Cc:	jeffrey.t.kirsher@...el.com, intel-wired-lan@...ts.osuosl.org,
	sy.jong.choi@...el.com, ben@...adent.org.uk,
	linux-kernel@...r.kernel.org, netdev@...r.kernel.org
Subject: Re: [PATCH v5] ixgbe: Add module parameter to disable VLAN filter

From: Hiroshi Shimamoto <h-shimamoto@...jp.nec.com>
Date: Thu, 21 May 2015 13:10:49 +0000

> diff --git a/drivers/net/ethernet/intel/ixgbe/ixgbe_main.c b/drivers/net/ethernet/intel/ixgbe/ixgbe_main.c
> index 263cb40..b45570f 100644
> --- a/drivers/net/ethernet/intel/ixgbe/ixgbe_main.c
> +++ b/drivers/net/ethernet/intel/ixgbe/ixgbe_main.c
> @@ -158,6 +158,10 @@ module_param(allow_unsupported_sfp, uint, 0);
>  MODULE_PARM_DESC(allow_unsupported_sfp,
>  		 "Allow unsupported and untested SFP+ modules on 82599-based adapters");
>  
> +static unsigned int disable_hw_vlan_filter;
> +module_param(disable_hw_vlan_filter, uint, 0);
> +MODULE_PARM_DESC(disable_hw_vlan_filter, "Disable HW VLAN filter");

Sorry, module parameters like this are not allowed.

You must use a generic, portable interface, to configure networking
device settings.

Otherwise every other driver that wants to do something similar will
have yet another module option with a different name, and every user
will suffer because they will need to learn a different mechanism
to perform this configuration for every driver.
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