linux-kernel - Re: [PATCH net-next] hinic: Use devm_kasprintf instead of hard coding it

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Date:   Fri, 14 Jun 2019 14:21:23 +0200 (CEST)
From:   Julia Lawall <julia.lawall@...6.fr>
To:     Christophe JAILLET <christophe.jaillet@...adoo.fr>
cc:     aviad.krawczyk@...wei.com, davem@...emloft.net,
        netdev@...r.kernel.org, linux-kernel@...r.kernel.org,
        kernel-janitors@...r.kernel.org
Subject: Re: [PATCH net-next] hinic: Use devm_kasprintf instead of hard coding
 it



On Fri, 14 Jun 2019, Christophe JAILLET wrote:

> Hi,
>
> I got a:
>
> <aviad.krawczyk@...wei.com>: host huawei.com[103.218.216.136] said: 550
> 5.1.1 Error: invalid recipients is found from 80.12.242.127
>
> However, MAINTAINERS has:
>   HUAWEI ETHERNET DRIVER
>   M:	Aviad Krawczyk <aviad.krawczyk@...wei.com>
>   L:	netdev@...r.kernel.org
>   S:	Supported
>   F:	Documentation/networking/hinic.txt
>   F:	drivers/net/ethernet/huawei/hinic/
>
> I don't know how this should be fixed (neither if it should be...), so if s.o.
> knows, please do.

Maybe this person would know, since he is also from Huawei and has signed
off on a patch by Aviad Krawczyk:

cde66f24c3bf42123647c5233447c5790d92557f
Signed-off-by: Zhao Chen <zhaochen6@...wei.com>

julia

>
> Best regards,
> Christophe Jaillet
>
> Le 13/06/2019 à 21:54, Christophe JAILLET a écrit :
> > 'devm_kasprintf' is less verbose than:
> >     snprintf(NULL, 0, ...);
> >     devm_kzalloc(...);
> >     sprintf
> > so use it instead.
> >
> > Signed-off-by: Christophe JAILLET <christophe.jaillet@...adoo.fr>
> > ---
> >   drivers/net/ethernet/huawei/hinic/hinic_rx.c | 8 +++-----
> >   1 file changed, 3 insertions(+), 5 deletions(-)
> >
> > diff --git a/drivers/net/ethernet/huawei/hinic/hinic_rx.c
> > b/drivers/net/ethernet/huawei/hinic/hinic_rx.c
> > index 9b4082557ad5..95b09fd110d3 100644
> > --- a/drivers/net/ethernet/huawei/hinic/hinic_rx.c
> > +++ b/drivers/net/ethernet/huawei/hinic/hinic_rx.c
> > @@ -493,7 +493,7 @@ int hinic_init_rxq(struct hinic_rxq *rxq, struct
> > hinic_rq *rq,
> >   		   struct net_device *netdev)
> >   {
> >   	struct hinic_qp *qp = container_of(rq, struct hinic_qp, rq);
> > -	int err, pkts, irqname_len;
> > +	int err, pkts;
> >     	rxq->netdev = netdev;
> >   	rxq->rq = rq;
> > @@ -502,13 +502,11 @@ int hinic_init_rxq(struct hinic_rxq *rxq, struct
> > hinic_rq *rq,
> >     	rxq_stats_init(rxq);
> >   -	irqname_len = snprintf(NULL, 0, "hinic_rxq%d", qp->q_id) + 1;
> > -	rxq->irq_name = devm_kzalloc(&netdev->dev, irqname_len, GFP_KERNEL);
> > +	rxq->irq_name = devm_kasprintf(&netdev->dev, GFP_KERNEL,
> > +				       "hinic_rxq%d", qp->q_id);
> >   	if (!rxq->irq_name)
> >   		return -ENOMEM;
> >   -	sprintf(rxq->irq_name, "hinic_rxq%d", qp->q_id);
> > -
> >   	pkts = rx_alloc_pkts(rxq);
> >   	if (!pkts) {
> >   		err = -ENOMEM;
>
>
>