linux-kernel - Re: [PATCH 08/22] amd: Use pci_zalloc

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Message-ID: <1403546524.12008.2.camel@Lunix2.home>
Date:	Mon, 23 Jun 2014 11:02:04 -0700
From:	Don Fry <pcnet32@...ntier.com>
To:	Joe Perches <joe@...ches.com>
Cc:	linux-kernel@...r.kernel.org, netdev@...r.kernel.org
Subject: Re: [PATCH 08/22] amd: Use pci_zalloc_consistent

On Mon, 2014-06-23 at 06:41 -0700, Joe Perches wrote:
> Remove the now unnecessary memset too.
> 
> Signed-off-by: Joe Perches <joe@...ches.com>
> ---
>  drivers/net/ethernet/amd/pcnet32.c | 16 ++++++----------
>  1 file changed, 6 insertions(+), 10 deletions(-)
> 
> diff --git a/drivers/net/ethernet/amd/pcnet32.c b/drivers/net/ethernet/amd/pcnet32.c
> index e7cc917..e5e2725 100644
> --- a/drivers/net/ethernet/amd/pcnet32.c
> +++ b/drivers/net/ethernet/amd/pcnet32.c
> @@ -484,15 +484,13 @@ static void pcnet32_realloc_tx_ring(struct net_device *dev,
>  
>  	pcnet32_purge_tx_ring(dev);
>  
> -	new_tx_ring = pci_alloc_consistent(lp->pci_dev,
> -					   sizeof(struct pcnet32_tx_head) *
> -					   (1 << size),
> -					   &new_ring_dma_addr);
> +	new_tx_ring = pci_zalloc_consistent(lp->pci_dev,
> +					    sizeof(struct pcnet32_tx_head) * (1 << size),

This causes the line length to be greater than 80 characters causing
checkpatch to complain.

> +					    &new_ring_dma_addr);
>  	if (new_tx_ring == NULL) {
>  		netif_err(lp, drv, dev, "Consistent memory allocation failed\n");
>  		return;
>  	}
> -	memset(new_tx_ring, 0, sizeof(struct pcnet32_tx_head) * (1 << size));
>  
>  	new_dma_addr_list = kcalloc(1 << size, sizeof(dma_addr_t),
>  				    GFP_ATOMIC);
> @@ -551,15 +549,13 @@ static void pcnet32_realloc_rx_ring(struct net_device *dev,
>  	int new, overlap;
>  	unsigned int entries = 1 << size;
>  
> -	new_rx_ring = pci_alloc_consistent(lp->pci_dev,
> -					   sizeof(struct pcnet32_rx_head) *
> -					   entries,
> -					   &new_ring_dma_addr);
> +	new_rx_ring = pci_zalloc_consistent(lp->pci_dev,
> +					    sizeof(struct pcnet32_rx_head) * entries,


This causes the line length to be greater than 80 characters causing
checkpatch to complain.

> +					    &new_ring_dma_addr);
>  	if (new_rx_ring == NULL) {
>  		netif_err(lp, drv, dev, "Consistent memory allocation failed\n");
>  		return;
>  	}
> -	memset(new_rx_ring, 0, sizeof(struct pcnet32_rx_head) * entries);
>  
>  	new_dma_addr_list = kcalloc(entries, sizeof(dma_addr_t), GFP_ATOMIC);
>  	if (!new_dma_addr_list)


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