From mboxrd@z Thu Jan 1 00:00:00 1970 From: Jeff Garzik Subject: Re: [PATCH] e1000e: get rid of wasted space Date: Wed, 22 Oct 2008 07:03:30 -0400 Message-ID: <48FF0882.9050007@garzik.org> References: <20081020191149.1dbf8e3b@extreme> Mime-Version: 1.0 Content-Type: text/plain; charset=ISO-8859-1; format=flowed Content-Transfer-Encoding: 7bit Cc: Jesse Brandeburg , e1000-devel@lists.sourceforge.net, netdev@vger.kernel.org To: Stephen Hemminger Return-path: Received: from srv5.dvmed.net ([207.36.208.214]:40104 "EHLO mail.dvmed.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1753200AbYJVLDf (ORCPT ); Wed, 22 Oct 2008 07:03:35 -0400 In-Reply-To: <20081020191149.1dbf8e3b@extreme> Sender: netdev-owner@vger.kernel.org List-ID: Stephen Hemminger wrote: > The name in the ring is only used once during setup so it shouldn't > be in the data structure. > > Signed-off-by: Stephen Hemminger > > --- a/drivers/net/e1000e/e1000.h 2008-10-20 18:13:53.000000000 -0700 > +++ b/drivers/net/e1000e/e1000.h 2008-10-20 18:18:30.000000000 -0700 > @@ -153,7 +153,6 @@ struct e1000_ring { > /* array of buffer information structs */ > struct e1000_buffer *buffer_info; > > - char name[IFNAMSIZ + 5]; > u32 ims_val; > u32 itr_val; > u16 itr_register; > --- a/drivers/net/e1000e/netdev.c 2008-10-20 18:19:22.000000000 -0700 > +++ b/drivers/net/e1000e/netdev.c 2008-10-20 18:21:00.000000000 -0700 > @@ -1473,27 +1473,20 @@ static int e1000_request_msix(struct e10 > { > struct net_device *netdev = adapter->netdev; > int err = 0, vector = 0; > + char irqname[IFNAMSIZ+5]; > > - if (strlen(netdev->name) < (IFNAMSIZ - 5)) > - sprintf(adapter->rx_ring->name, "%s-rx0", netdev->name); > - else > - memcpy(adapter->rx_ring->name, netdev->name, IFNAMSIZ); > + snprintf(irqname, sizeof(irqname), "%s-rx0", netdev->name); > err = request_irq(adapter->msix_entries[vector].vector, > - &e1000_intr_msix_rx, 0, adapter->rx_ring->name, > - netdev); > + &e1000_intr_msix_rx, 0, irqname, netdev); > if (err) > goto out; > adapter->rx_ring->itr_register = E1000_EITR_82574(vector); > adapter->rx_ring->itr_val = adapter->itr; > vector++; > > - if (strlen(netdev->name) < (IFNAMSIZ - 5)) > - sprintf(adapter->tx_ring->name, "%s-tx0", netdev->name); > - else > - memcpy(adapter->tx_ring->name, netdev->name, IFNAMSIZ); > + snprintf(irqname, sizeof(irqname), "%s-tx0", netdev->name); > err = request_irq(adapter->msix_entries[vector].vector, > - &e1000_intr_msix_tx, 0, adapter->tx_ring->name, > - netdev); > + &e1000_intr_msix_tx, 0, irqname, netdev); > if (err) > goto out; > adapter->tx_ring->itr_register = E1000_EITR_82574(vector); ACK for what it's worth... I am following DaveM's lead, and waiting until net-next opens to start taking patches for 2.6.29. He wants us to focus on bug fixing for now. So, please resend once the merge window opens... thanks. Jeff