linux-kernel - Re: linux-next: manual merge of the net-next tree with the net tree

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Message-ID: <20200503052154.GB111287@unreal>
Date:   Sun, 3 May 2020 08:21:54 +0300
From:   Leon Romanovsky <leonro@...lanox.com>
To:     Stephen Rothwell <sfr@...b.auug.org.au>,
        Saeed Mahameed <saeedm@...lanox.com>
Cc:     David Miller <davem@...emloft.net>,
        Networking <netdev@...r.kernel.org>,
        Linux Next Mailing List <linux-next@...r.kernel.org>,
        Linux Kernel Mailing List <linux-kernel@...r.kernel.org>,
        Erez Shitrit <erezsh@...lanox.com>
Subject: Re: linux-next: manual merge of the net-next tree with the net tree

On Fri, May 01, 2020 at 12:48:36PM +1000, Stephen Rothwell wrote:
> Hi all,
>
> Today's linux-next merge of the net-next tree got a conflict in:
>
>   drivers/net/ethernet/mellanox/mlx5/core/steering/dr_send.c
>
> between commit:
>
>   8075411d93b6 ("net/mlx5: DR, On creation set CQ's arm_db member to right value")
>
> from the net tree and commit:
>
>   73a75b96fc9a ("net/mlx5: Remove empty QP and CQ events handlers")
>
> from the net-next tree.
>
> I fixed it up (see below) and can carry the fix as necessary. This
> is now fixed as far as linux-next is concerned, but any non trivial
> conflicts should be mentioned to your upstream maintainer when your tree
> is submitted for merging.  You may also want to consider cooperating
> with the maintainer of the conflicting tree to minimise any particularly
> complex conflicts.
>
> --
> Cheers,
> Stephen Rothwell

Thanks for the resolution.

>
> diff --cc drivers/net/ethernet/mellanox/mlx5/core/steering/dr_send.c
> index 18719acb7e54,c4ed25bb9ac8..000000000000
> --- a/drivers/net/ethernet/mellanox/mlx5/core/steering/dr_send.c
> +++ b/drivers/net/ethernet/mellanox/mlx5/core/steering/dr_send.c
> @@@ -689,18 -693,6 +693,12 @@@ static int dr_prepare_qp_to_rts(struct
>   	return 0;
>   }
>
> - static void dr_cq_event(struct mlx5_core_cq *mcq,
> - 			enum mlx5_event event)
> - {
> - 	pr_info("CQ event %u on CQ #%u\n", event, mcq->cqn);
> - }
> -
>  +static void dr_cq_complete(struct mlx5_core_cq *mcq,
>  +			   struct mlx5_eqe *eqe)
>  +{
>  +	pr_err("CQ completion CQ: #%u\n", mcq->cqn);
>  +}
>  +

Saeed,

Please pay attention that commit 8075411d93b6
("net/mlx5: DR, On creation set CQ's arm_db member to right value")
mentioned by Stephen is not accurate. ".comp" callback shouldn't be
called if it is NULL, so unclear what you get by adding such pr_err().

Thanks

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