linux-kernel - Re: linux-next: manual merge of the mlx5-next tree with the kspp-gustavo tree

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Date:   Fri, 1 May 2020 13:12:30 +1000
From:   Stephen Rothwell <sfr@...b.auug.org.au>
To:     "Gustavo A. R. Silva" <gustavo@...eddedor.com>,
        David Miller <davem@...emloft.net>,
        Networking <netdev@...r.kernel.org>
Cc:     Leon Romanovsky <leon@...nel.org>,
        Linux Next Mailing List <linux-next@...r.kernel.org>,
        Linux Kernel Mailing List <linux-kernel@...r.kernel.org>,
        Huy Nguyen <huyn@...lanox.com>,
        Saeed Mahameed <saeedm@...lanox.com>,
        Raed Salem <raeds@...lanox.com>
Subject: Re: linux-next: manual merge of the mlx5-next tree with the
 kspp-gustavo tree

Hi all,

On Wed, 29 Apr 2020 12:06:25 +1000 Stephen Rothwell <sfr@...b.auug.org.au> wrote:
>
> Today's linux-next merge of the mlx5-next tree got a conflict in:
> 
>   include/linux/mlx5/mlx5_ifc.h
> 
> between commit:
> 
>   3ba225b506a2 ("treewide: Replace zero-length array with flexible-array member")
> 
> from the kspp-gustavo tree and commit:
> 
>   d65dbedfd298 ("net/mlx5: Add support for COPY steering action")
> 
> from the mlx5-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
> 
> diff --cc include/linux/mlx5/mlx5_ifc.h
> index 8d30f18dcdee,fb243848132d..000000000000
> --- a/include/linux/mlx5/mlx5_ifc.h
> +++ b/include/linux/mlx5/mlx5_ifc.h
> @@@ -5743,7 -5771,7 +5771,7 @@@ struct mlx5_ifc_alloc_modify_header_con
>   	u8         reserved_at_68[0x10];
>   	u8         num_of_actions[0x8];
>   
> - 	union mlx5_ifc_set_action_in_add_action_in_auto_bits actions[];
>  -	union mlx5_ifc_set_add_copy_action_in_auto_bits actions[0];
> ++	union mlx5_ifc_set_add_copy_action_in_auto_bits actions[];
>   };
>   
>   struct mlx5_ifc_dealloc_modify_header_context_out_bits {
> @@@ -9677,9 -9705,32 +9705,32 @@@ struct mlx5_ifc_mcda_reg_bits 
>   
>   	u8         reserved_at_60[0x20];
>   
>  -	u8         data[0][0x20];
>  +	u8         data[][0x20];
>   };
>   
> + enum {
> + 	MLX5_MFRL_REG_RESET_TYPE_FULL_CHIP = BIT(0),
> + 	MLX5_MFRL_REG_RESET_TYPE_NET_PORT_ALIVE = BIT(1),
> + };
> + 
> + enum {
> + 	MLX5_MFRL_REG_RESET_LEVEL0 = BIT(0),
> + 	MLX5_MFRL_REG_RESET_LEVEL3 = BIT(3),
> + 	MLX5_MFRL_REG_RESET_LEVEL6 = BIT(6),
> + };
> + 
> + struct mlx5_ifc_mfrl_reg_bits {
> + 	u8         reserved_at_0[0x20];
> + 
> + 	u8         reserved_at_20[0x2];
> + 	u8         pci_sync_for_fw_update_start[0x1];
> + 	u8         pci_sync_for_fw_update_resp[0x2];
> + 	u8         rst_type_sel[0x3];
> + 	u8         reserved_at_28[0x8];
> + 	u8         reset_type[0x8];
> + 	u8         reset_level[0x8];
> + };
> + 
>   struct mlx5_ifc_mirc_reg_bits {
>   	u8         reserved_at_0[0x18];
>   	u8         status_code[0x8];

This is now a conflict between the net-next and kspp-gustavo trees.

-- 
Cheers,
Stephen Rothwell

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