netdev - Re: [net-next 15/15] i40e/i40evf: Add call to u64_stats

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Message-ID: <54D8A36B.8040401@cogentembedded.com>
Date:	Mon, 09 Feb 2015 15:09:15 +0300
From:	Sergei Shtylyov <sergei.shtylyov@...entembedded.com>
To:	Jeff Kirsher <jeffrey.t.kirsher@...el.com>, davem@...emloft.net
CC:	Carolyn Wyborny <carolyn.wyborny@...el.com>,
	netdev@...r.kernel.org, nhorman@...hat.com, sassmann@...hat.com,
	jogreene@...hat.com
Subject: Re: [net-next 15/15] i40e/i40evf: Add call to u64_stats_init to init

Hello.

On 2/9/2015 1:44 PM, Jeff Kirsher wrote:

> From: Carolyn Wyborny <carolyn.wyborny@...el.com>

> This patch adds a call to u64_stats_init to Rx setup.
> This done in order to avoid lockdep errors with seqcount on newer kernels.

> Change-ID: Ia8ba8f0bcbd1c0e926f97d70aeee4ce4fd055e93
> Signed-off-by: Carolyn Wyborny <carolyn.wyborny@...el.com>
> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@...el.com>
> ---
>   drivers/net/ethernet/intel/i40e/i40e_txrx.c   | 2 ++
>   drivers/net/ethernet/intel/i40evf/i40e_txrx.c | 2 ++
>   2 files changed, 4 insertions(+)

> diff --git a/drivers/net/ethernet/intel/i40e/i40e_txrx.c b/drivers/net/ethernet/intel/i40e/i40e_txrx.c
> index 5aa6ef1..f4d6d90 100644
> --- a/drivers/net/ethernet/intel/i40e/i40e_txrx.c
> +++ b/drivers/net/ethernet/intel/i40e/i40e_txrx.c
> @@ -1098,6 +1098,8 @@ int i40e_setup_rx_descriptors(struct i40e_ring *rx_ring)
>   	if (!rx_ring->rx_bi)
>   		goto err;
>
> +		u64_stats_init(rx_ring->syncp);

    This is over-indented.

> +
>   	/* Round up to nearest 4K */
>   	rx_ring->size = ring_is_16byte_desc_enabled(rx_ring)
>   		? rx_ring->count * sizeof(union i40e_16byte_rx_desc)
> diff --git a/drivers/net/ethernet/intel/i40evf/i40e_txrx.c b/drivers/net/ethernet/intel/i40evf/i40e_txrx.c
> index 4bf15da..459499a 100644
> --- a/drivers/net/ethernet/intel/i40evf/i40e_txrx.c
> +++ b/drivers/net/ethernet/intel/i40evf/i40e_txrx.c
> @@ -596,6 +596,8 @@ int i40evf_setup_rx_descriptors(struct i40e_ring *rx_ring)
>   	if (!rx_ring->rx_bi)
>   		goto err;
>
> +		u64_stats_init(rx_ring->syncp);

    Likewise.

> +
>   	/* Round up to nearest 4K */
>   	rx_ring->size = ring_is_16byte_desc_enabled(rx_ring)
>   		? rx_ring->count * sizeof(union i40e_16byte_rx_desc)

WBR, Sergei

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