linux-kernel - Re: [PATCH net] bridge: mrp: Fix endian conversion and some other warnings

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Message-ID: <3adf6b93-6cd7-0a9f-9411-736b3d9ca148@cumulusnetworks.com>
Date:   Sun, 28 Jun 2020 16:51:36 +0300
From:   Nikolay Aleksandrov <nikolay@...ulusnetworks.com>
To:     Horatiu Vultur <horatiu.vultur@...rochip.com>,
        roopa@...ulusnetworks.com, davem@...emloft.net, kuba@...nel.org,
        bridge@...ts.linux-foundation.org, netdev@...r.kernel.org,
        linux-kernel@...r.kernel.org, UNGLinuxDriver@...rochip.com
Cc:     kernel test robot <lkp@...el.com>
Subject: Re: [PATCH net] bridge: mrp: Fix endian conversion and some other
 warnings

On 28/06/2020 16:45, Horatiu Vultur wrote:
> The following sparse warnings are fixed:
> net/bridge/br_mrp.c:106:18: warning: incorrect type in assignment (different base types)
> net/bridge/br_mrp.c:106:18:    expected unsigned short [usertype]
> net/bridge/br_mrp.c:106:18:    got restricted __be16 [usertype]
> net/bridge/br_mrp.c:281:23: warning: incorrect type in argument 1 (different modifiers)
> net/bridge/br_mrp.c:281:23:    expected struct list_head *entry
> net/bridge/br_mrp.c:281:23:    got struct list_head [noderef] *
> net/bridge/br_mrp.c:332:28: warning: incorrect type in argument 1 (different modifiers)
> net/bridge/br_mrp.c:332:28:    expected struct list_head *new
> net/bridge/br_mrp.c:332:28:    got struct list_head [noderef] *
> net/bridge/br_mrp.c:332:40: warning: incorrect type in argument 2 (different modifiers)
> net/bridge/br_mrp.c:332:40:    expected struct list_head *head
> net/bridge/br_mrp.c:332:40:    got struct list_head [noderef] *
> net/bridge/br_mrp.c:682:29: warning: incorrect type in argument 1 (different modifiers)
> net/bridge/br_mrp.c:682:29:    expected struct list_head const *head
> net/bridge/br_mrp.c:682:29:    got struct list_head [noderef] *
> 
> Reported-by: kernel test robot <lkp@...el.com>
> Fixes: 2f1a11ae11d222 ("bridge: mrp: Add MRP interface.")
> Fixes: 4b8d7d4c599182 ("bridge: mrp: Extend bridge interface")
> Fixes: 9a9f26e8f7ea30 ("bridge: mrp: Connect MRP API with the switchdev API")
> Signed-off-by: Horatiu Vultur <horatiu.vultur@...rochip.com>
> ---
>  net/bridge/br_mrp.c         | 2 +-
>  net/bridge/br_private.h     | 2 +-
>  net/bridge/br_private_mrp.h | 2 +-
>  3 files changed, 3 insertions(+), 3 deletions(-)
> 

Acked-by: Nikolay Aleksandrov <nikolay@...ulusnetworks.com>

> diff --git a/net/bridge/br_mrp.c b/net/bridge/br_mrp.c
> index 779e1eb754430..90592af9db619 100644
> --- a/net/bridge/br_mrp.c
> +++ b/net/bridge/br_mrp.c
> @@ -86,7 +86,7 @@ static struct sk_buff *br_mrp_skb_alloc(struct net_bridge_port *p,
>  {
>  	struct ethhdr *eth_hdr;
>  	struct sk_buff *skb;
> -	u16 *version;
> +	__be16 *version;
>  
>  	skb = dev_alloc_skb(MRP_MAX_FRAME_LENGTH);
>  	if (!skb)
> diff --git a/net/bridge/br_private.h b/net/bridge/br_private.h
> index 2130fe0194e64..e0ea6dbbc97ed 100644
> --- a/net/bridge/br_private.h
> +++ b/net/bridge/br_private.h
> @@ -430,7 +430,7 @@ struct net_bridge {
>  	struct hlist_head		fdb_list;
>  
>  #if IS_ENABLED(CONFIG_BRIDGE_MRP)
> -	struct list_head		__rcu mrp_list;
> +	struct list_head		mrp_list;
>  #endif
>  };
>  
> diff --git a/net/bridge/br_private_mrp.h b/net/bridge/br_private_mrp.h
> index 33b255e38ffec..315eb37d89f0f 100644
> --- a/net/bridge/br_private_mrp.h
> +++ b/net/bridge/br_private_mrp.h
> @@ -8,7 +8,7 @@
>  
>  struct br_mrp {
>  	/* list of mrp instances */
> -	struct list_head		__rcu list;
> +	struct list_head		list;
>  
>  	struct net_bridge_port __rcu	*p_port;
>  	struct net_bridge_port __rcu	*s_port;
>