linux-kernel - Re: [PATCH 3/8] tlan: use pci_zalloc instead of pci

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Message-ID: <20190228004151.GA26282@bobby.localdomain>
Date:   Wed, 27 Feb 2019 16:41:51 -0800
From:   Robert Eshleman <bobbyeshleman@...il.com>
To:     Joe Perches <joe@...ches.com>
Cc:     Tariq Toukan <tariqt@...lanox.com>,
        "David S. Miller" <davem@...emloft.net>,
        Samuel Chessman <chessman@....org>, netdev@...r.kernel.org,
        linux-rdma@...r.kernel.org, linux-kernel@...r.kernel.org
Subject: Re: [PATCH 3/8] tlan: use pci_zalloc instead of pci_alloc

On Tue, Feb 26, 2019 at 10:22:06PM -0800, Joe Perches wrote:
> On Tue, 2019-02-26 at 22:09 -0800, Robert Eshleman wrote:
> > This patch replaces a pci_alloc_consistent and memset(,0) call
> > with a single call to pci_zalloc_consistent.
> []
> > diff --git a/drivers/net/ethernet/ti/tlan.c b/drivers/net/ethernet/ti/tlan.c
> []
> > @@ -845,17 +845,16 @@ static int tlan_init(struct net_device *dev)
> >  
> >  	dma_size = (TLAN_NUM_RX_LISTS + TLAN_NUM_TX_LISTS)
> >  		* (sizeof(struct tlan_list));
> > -	priv->dma_storage = pci_alloc_consistent(priv->pci_dev,
> > -						 dma_size,
> > -						 &priv->dma_storage_dma);
> > +	priv->dma_storage = pci_zalloc_consistent(priv->pci_dev,
> > +						  dma_size,
> > +						  &priv->dma_storage_dma);
> >  	priv->dma_size = dma_size;
> >  
> > -	if (priv->dma_storage == NULL) {
> > +	if (!priv->dma_storage) {
> >  		pr_err("Could not allocate lists and buffers for %s\n",
> >  		       dev->name);
> 
> unrelated trivia:
> 
> This pr_err (and likely others in this file)
> could be replace by netdev_err
> 

Definitely good to know (I may make that change too).  Thanks Joe.

-Bobby