From mboxrd@z Thu Jan 1 00:00:00 1970 From: Joe Perches Subject: Re: [PATCH net-next] drivers:net: dma_alloc_coherent: use __GFP_ZERO instead of memset(, 0) Date: Fri, 15 Mar 2013 21:18:21 -0700 Message-ID: <1363407501.2030.1.camel@joe-AO722> References: Mime-Version: 1.0 Content-Type: text/plain; charset="ISO-8859-1" Content-Transfer-Encoding: 7bit Cc: "netdev@vger.kernel.org" , "linux-kernel@vger.kernel.org" , "e1000-devel@lists.sourceforge.net" , "linux-wireless@vger.kernel.org" , "b43-dev@lists.infradead.org" , "users@rt2x00.serialmonkey.com" To: "Abodunrin, Akeem G" Return-path: In-Reply-To: Sender: linux-kernel-owner@vger.kernel.org List-Id: netdev.vger.kernel.org On Fri, 2013-03-15 at 22:51 +0000, Abodunrin, Akeem G wrote: > -----Original Message----- > From: netdev-owner@vger.kernel.org [mailto:netdev-owner@vger.kernel.org] On Behalf Of Joe Perches [] > Reduce the number of calls required to alloc a zeroed block of memory. [] > diff --git a/drivers/net/ethernet/intel/igbvf/netdev.c b/drivers/net/ethernet/intel/igbvf/netdev.c [] > @@ -488,7 +487,6 @@ int igbvf_setup_rx_resources(struct igbvf_adapter *adapter, > > rx_ring->desc = dma_alloc_coherent(&pdev->dev, rx_ring->size, > &rx_ring->dma, GFP_KERNEL); > - > if (!rx_ring->desc) > goto err; > > Hi Joe, Hello Akeem. > Your changes did not seem to make it to igbvf/netdev.c - I think > instead of removing an extra line added for code clarity, you > want to add: > "tx_ring->desc = dma_alloc_coherent(&pdev->dev, tx_ring->size, > &tx_ring->dma, GFP_KERNEL| __GFP_ZERO);" Not really, there's no memset here so this bit is just a whitespace neatening.