netdev - Re: [PATCH net v3 2/4] flow_offload: fix incorrect cb_priv check for flow_block

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Date:   Tue, 16 Jun 2020 22:13:48 +0200
From:   Pablo Neira Ayuso <pablo@...filter.org>
To:     wenxu@...oud.cn
Cc:     netdev@...r.kernel.org, davem@...emloft.net, vladbu@...lanox.com
Subject: Re: [PATCH net v3 2/4] flow_offload: fix incorrect cb_priv check for
 flow_block_cb

On Tue, Jun 16, 2020 at 11:19:38AM +0800, wenxu@...oud.cn wrote:
> From: wenxu <wenxu@...oud.cn>
> 
> In the function __flow_block_indr_cleanup, The match stataments
> this->cb_priv == cb_priv is always false, the flow_block_cb->cb_priv
> is totally different data with the flow_indr_dev->cb_priv.
> 
> Store the representor cb_priv to the flow_block_cb->indr.cb_priv in
> the driver.
> 
> Fixes: 1fac52da5942 ("net: flow_offload: consolidate indirect flow_block infrastructure")
> Signed-off-by: wenxu <wenxu@...oud.cn>
> ---
>  drivers/net/ethernet/broadcom/bnxt/bnxt_tc.c        | 1 +
>  drivers/net/ethernet/mellanox/mlx5/core/en/rep/tc.c | 2 +-
>  drivers/net/ethernet/netronome/nfp/flower/offload.c | 1 +
>  include/net/flow_offload.h                          | 1 +
>  net/core/flow_offload.c                             | 2 +-
>  5 files changed, 5 insertions(+), 2 deletions(-)
> 
> diff --git a/drivers/net/ethernet/broadcom/bnxt/bnxt_tc.c b/drivers/net/ethernet/broadcom/bnxt/bnxt_tc.c
> index ef7f6bc..042c285 100644
> --- a/drivers/net/ethernet/broadcom/bnxt/bnxt_tc.c
> +++ b/drivers/net/ethernet/broadcom/bnxt/bnxt_tc.c
> @@ -1918,6 +1918,7 @@ static int bnxt_tc_setup_indr_block(struct net_device *netdev, struct bnxt *bp,
>  
>  		flow_block_cb_add(block_cb, f);
>  		list_add_tail(&block_cb->driver_list, &bnxt_block_cb_list);
> +		block_cb->indr.cb_priv = bp;

cb_indent ?

Why are you splitting the fix in multiple patches? This makes it
harder to review.

I think patch 1/4, 2/4 and 4/4 belong to the same logical change?
Collapse them.