linux-kernel - Re: [PATCH -next] RDMA/irdma: Use list_move instead of list_del/list

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Message-ID: <20210608091808.GB1955@kadam>
Date:   Tue, 8 Jun 2021 12:18:08 +0300
From:   Dan Carpenter <dan.carpenter@...cle.com>
To:     Baokun Li <libaokun1@...wei.com>
Cc:     linux-kernel@...r.kernel.org,
        Mustafa Ismail <mustafa.ismail@...el.com>,
        Shiraz Saleem <shiraz.saleem@...el.com>,
        Doug Ledford <dledford@...hat.com>,
        Jason Gunthorpe <jgg@...pe.ca>, weiyongjun1@...wei.com,
        yuehaibing@...wei.com, yangjihong1@...wei.com, yukuai3@...wei.com,
        linux-rdma@...r.kernel.org, kernel-janitors@...r.kernel.org,
        Hulk Robot <hulkci@...wei.com>
Subject: Re: [PATCH -next] RDMA/irdma: Use list_move instead of
 list_del/list_add

On Tue, Jun 08, 2021 at 11:10:41AM +0800, Baokun Li wrote:
> Using list_move() instead of list_del() + list_add().
> 
> Reported-by: Hulk Robot <hulkci@...wei.com>
> Signed-off-by: Baokun Li <libaokun1@...wei.com>
> ---
>  drivers/infiniband/hw/irdma/puda.c | 3 +--
>  1 file changed, 1 insertion(+), 2 deletions(-)
> 
> diff --git a/drivers/infiniband/hw/irdma/puda.c b/drivers/infiniband/hw/irdma/puda.c
> index 18057139817d..c0be6e37d425 100644
> --- a/drivers/infiniband/hw/irdma/puda.c
> +++ b/drivers/infiniband/hw/irdma/puda.c
> @@ -1420,8 +1420,7 @@ irdma_ieq_handle_partial(struct irdma_puda_rsrc *ieq, struct irdma_pfpdu *pfpdu,
>  error:
>  	while (!list_empty(&pbufl)) {
>  		buf = (struct irdma_puda_buf *)(pbufl.prev);
                ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^

Not related to your patch but this would be nicer as:

		buf = list_last_entry(&pbufl, struct irdma_puda_buf, list);

> -		list_del(&buf->list);
> -		list_add(&buf->list, rxlist);
> +		list_move(&buf->list, rxlist);

regards,
dan carpenter