[PATCH] net/mlx5: use swap() to make code cleaner

[PATCH] net/mlx5: use swap() to make code cleaner

[davidcomponentone]

From: Yang Guang <yang.guang5@zte.com.cn>

Use the macro 'swap()' defined in 'include/linux/minmax.h' to avoid
opencoding it.

Reported-by: Zeal Robot <zealci@zte.com.cn>
Signed-off-by: Yang Guang <yang.guang5@zte.com.cn>
---
 drivers/net/ethernet/mellanox/mlx5/core/en/tc_ct.c | 5 +----
 1 file changed, 1 insertion(+), 4 deletions(-)

diff --git a/drivers/net/ethernet/mellanox/mlx5/core/en/tc_ct.c b/drivers/net/ethernet/mellanox/mlx5/core/en/tc_ct.c
index c1c6e74c79c4..8ce4b6112169 100644
--- a/drivers/net/ethernet/mellanox/mlx5/core/en/tc_ct.c
+++ b/drivers/net/ethernet/mellanox/mlx5/core/en/tc_ct.c
@@ -907,12 +907,9 @@ mlx5_tc_ct_shared_counter_get(struct mlx5_tc_ct_priv *ct_priv,
 	struct mlx5_ct_tuple rev_tuple = entry->tuple;
 	struct mlx5_ct_counter *shared_counter;
 	struct mlx5_ct_entry *rev_entry;
-	__be16 tmp_port;
 
 	/* get the reversed tuple */
-	tmp_port = rev_tuple.port.src;
-	rev_tuple.port.src = rev_tuple.port.dst;
-	rev_tuple.port.dst = tmp_port;
+	swap(rev_tuple.port.src, rev_tuple.port.dst);
 
 	if (rev_tuple.addr_type == FLOW_DISSECTOR_KEY_IPV4_ADDRS) {
 		__be32 tmp_addr = rev_tuple.ip.src_v4;
-- 
2.30.2

Re: [PATCH] net/mlx5: use swap() to make code cleaner

[Saeed Mahameed]

On Thu, 2021-11-04 at 09:17 +0800, davidcomponentone@gmail.com wrote:
> From: Yang Guang <yang.guang5@zte.com.cn>
> 
> Use the macro 'swap()' defined in 'include/linux/minmax.h' to avoid
> opencoding it.
> 
> Reported-by: Zeal Robot <zealci@zte.com.cn>
> Signed-off-by: Yang Guang <yang.guang5@zte.com.cn>

sorry you're too late, another patch was already submitted:
https://patchwork.kernel.org/project/netdevbpf/patch/20211103062111.3286-1-hanyihao@vivo.com/

Re: [PATCH] net/mlx5: use swap() to make code cleaner

[Saeed Mahameed]

On Thu, 2021-11-04 at 09:17 +0800, davidcomponentone@gmail.com wrote:
> From: Yang Guang <yang.guang5@zte.com.cn>
> 
> Use the macro 'swap()' defined in 'include/linux/minmax.h' to avoid
> opencoding it.
> 
> Reported-by: Zeal Robot <zealci@zte.com.cn>
> Signed-off-by: Yang Guang <yang.guang5@zte.com.cn>
> ---
>  drivers/net/ethernet/mellanox/mlx5/core/en/tc_ct.c | 5 +----
>  1 file changed, 1 insertion(+), 4 deletions(-)
> 
> diff --git a/drivers/net/ethernet/mellanox/mlx5/core/en/tc_ct.c
> b/drivers/net/ethernet/mellanox/mlx5/core/en/tc_ct.c
> index c1c6e74c79c4..8ce4b6112169 100644
> --- a/drivers/net/ethernet/mellanox/mlx5/core/en/tc_ct.c
> +++ b/drivers/net/ethernet/mellanox/mlx5/core/en/tc_ct.c
> @@ -907,12 +907,9 @@ mlx5_tc_ct_shared_counter_get(struct
> mlx5_tc_ct_priv *ct_priv,
>         struct mlx5_ct_tuple rev_tuple = entry->tuple;
>         struct mlx5_ct_counter *shared_counter;
>         struct mlx5_ct_entry *rev_entry;
> -       __be16 tmp_port;
>  
>         /* get the reversed tuple */
> -       tmp_port = rev_tuple.port.src;
> -       rev_tuple.port.src = rev_tuple.port.dst;
> -       rev_tuple.port.dst = tmp_port;
> +       swap(rev_tuple.port.src, rev_tuple.port.dst);
>  
>         if (rev_tuple.addr_type == FLOW_DISSECTOR_KEY_IPV4_ADDRS) {
>                 __be32 tmp_addr = rev_tuple.ip.src_v4;

An identical patch was already submitted the day before.
Thanks for the effort !