netdev - Re: [PATCH] sfc: initialize dynamic sysfs attributes for lockdep

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Date:	Thu, 19 Jul 2012 18:19:05 +0100
From:	Ben Hutchings <bhutchings@...arflare.com>
To:	Michal Schmidt <mschmidt@...hat.com>
CC:	<netdev@...r.kernel.org>,
	Solarflare linux maintainers <linux-net-drivers@...arflare.com>
Subject: Re: [PATCH] sfc: initialize dynamic sysfs attributes for lockdep

On Thu, 2012-07-19 at 19:04 +0200, Michal Schmidt wrote:
> Dynamically allocated sysfs attributes must be initialized using
> sysfs_attr_init(), otherwise lockdep complains:
> BUG: key <address> not in .data!
>
> Signed-off-by: Michal Schmidt <mschmidt@...hat.com>

Acked-by: Ben Hutchings <bhutchings@...arflare.com>

> ---
>  drivers/net/ethernet/sfc/mcdi_mon.c |    1 +
>  1 file changed, 1 insertion(+)
> 
> diff --git a/drivers/net/ethernet/sfc/mcdi_mon.c b/drivers/net/ethernet/sfc/mcdi_mon.c
> index fb7f65b..1d552f0 100644
> --- a/drivers/net/ethernet/sfc/mcdi_mon.c
> +++ b/drivers/net/ethernet/sfc/mcdi_mon.c
> @@ -222,6 +222,7 @@ efx_mcdi_mon_add_attr(struct efx_nic *efx, const char *name,
>  	attr->index = index;
>  	attr->type = type;
>  	attr->limit_value = limit_value;
> +	sysfs_attr_init(&attr->dev_attr.attr);
>  	attr->dev_attr.attr.name = attr->name;
>  	attr->dev_attr.attr.mode = S_IRUGO;
>  	attr->dev_attr.show = reader;

-- 
Ben Hutchings, Staff Engineer, Solarflare
Not speaking for my employer; that's the marketing department's job.
They asked us to note that Solarflare product names are trademarked.

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