-----Original Message----- From: netdev-owner@xxxxxxxxxxxxxxx [mailto:netdev-owner@xxxxxxxxxxxxxxx] On Behalf Of Joe Perches Sent: Friday, March 15, 2013 10:24 AM To: netdev@xxxxxxxxxxxxxxx Cc: linux-kernel@xxxxxxxxxxxxxxx; e1000-devel@xxxxxxxxxxxxxxxxxxxxx; linux-wireless@xxxxxxxxxxxxxxx; b43-dev@xxxxxxxxxxxxxxxxxxx; users@xxxxxxxxxxxxxxxxxxxxxxx Subject: [PATCH net-next] drivers:net: dma_alloc_coherent: use __GFP_ZERO instead of memset(, 0) Reduce the number of calls required to alloc a zeroed block of memory. Trivially reduces overall object size. Other changes around these removals o Neaten call argument alignment o Remove an unnecessary OOM message after dma_alloc_coherent failure o Remove unnecessary gfp_t stack variable Signed-off-by: Joe Perches <joe@xxxxxxxxxxx> --- drivers/net/ethernet/aeroflex/greth.c | 8 ++------ drivers/net/ethernet/broadcom/bcm63xx_enet.c | 8 ++++---- drivers/net/ethernet/broadcom/bnx2.c | 5 ++--- drivers/net/ethernet/broadcom/bnx2x/bnx2x.h | 9 +++------ drivers/net/ethernet/broadcom/bnx2x/bnx2x_cmn.h | 14 ++++++------- drivers/net/ethernet/broadcom/tg3.c | 11 +++-------- drivers/net/ethernet/brocade/bna/bnad.c | 5 ++--- drivers/net/ethernet/emulex/benet/be_main.c | 14 ++++++------- drivers/net/ethernet/faraday/ftgmac100.c | 5 ++--- drivers/net/ethernet/faraday/ftmac100.c | 8 ++++---- drivers/net/ethernet/ibm/emac/mal.c | 3 +-- drivers/net/ethernet/intel/e1000/e1000_ethtool.c | 6 ++---- drivers/net/ethernet/intel/igbvf/netdev.c | 2 -- snip... diff --git a/drivers/net/ethernet/intel/igbvf/netdev.c b/drivers/net/ethernet/intel/igbvf/netdev.c index d60cd43..bea46bb 100644 --- a/drivers/net/ethernet/intel/igbvf/netdev.c +++ b/drivers/net/ethernet/intel/igbvf/netdev.c @@ -447,7 +447,6 @@ int igbvf_setup_tx_resources(struct igbvf_adapter *adapter, tx_ring->desc = dma_alloc_coherent(&pdev->dev, tx_ring->size, &tx_ring->dma, GFP_KERNEL); - if (!tx_ring->desc) goto err; @@ -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, 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);" Regards, Akeem Abodunrin -- 1.8.1.2.459.gbcd45b4.dirty -- To unsubscribe from this list: send the line "unsubscribe netdev" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html -- To unsubscribe from this list: send the line "unsubscribe linux-wireless" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
