linux-kernel - [PATCH net-next v2 0/3] introduce skb_for_each

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Message-Id: <20210412003802.51613-1-mcroce@linux.microsoft.com>
Date:   Mon, 12 Apr 2021 02:37:59 +0200
From:   Matteo Croce <mcroce@...ux.microsoft.com>
To:     netdev@...r.kernel.org
Cc:     linux-kernel@...r.kernel.org,
        "David S. Miller" <davem@...emloft.net>,
        Jakub Kicinski <kuba@...nel.org>,
        Julia Lawall <julia.lawall@...ia.fr>
Subject: [PATCH net-next v2 0/3] introduce skb_for_each_frag()

From: Matteo Croce <mcroce@...rosoft.com>

Introduce skb_for_each_frag, an helper macro to iterate over the SKB frags.

First patch introduces the helper, the second one is generated with
coccinelle and uses the macro where possible.
Last one is a chunk which have to be applied by hand.

The second patch raises some checkpatch.pl warnings because part of
net/tls/tls_sw.c is indented with spaces.

Build tested with an allmodconfig and a test run.

v1 -> v2:
- don't replace code where a local variable holds a cached value
  for skb_shinfo(skb)->nr_frags

Matteo Croce (3):
  skbuff: add helper to walk over the fraglist
  net: use skb_for_each_frag() helper where possible
  net: use skb_for_each_frag() in illegal_highdma()

 drivers/atm/he.c                              |  2 +-
 drivers/hsi/clients/ssi_protocol.c            |  2 +-
 drivers/infiniband/hw/hfi1/ipoib_tx.c         |  2 +-
 drivers/infiniband/hw/hfi1/vnic_sdma.c        |  2 +-
 drivers/infiniband/ulp/ipoib/ipoib_ib.c       |  4 +--
 drivers/net/ethernet/3com/3c59x.c             |  2 +-
 drivers/net/ethernet/3com/typhoon.c           |  2 +-
 drivers/net/ethernet/adaptec/starfire.c       |  2 +-
 drivers/net/ethernet/aeroflex/greth.c         |  2 +-
 drivers/net/ethernet/alteon/acenic.c          |  2 +-
 drivers/net/ethernet/amd/xgbe/xgbe-desc.c     |  2 +-
 drivers/net/ethernet/amd/xgbe/xgbe-drv.c      |  2 +-
 .../net/ethernet/apm/xgene/xgene_enet_main.c  |  2 +-
 drivers/net/ethernet/atheros/alx/main.c       |  2 +-
 .../net/ethernet/atheros/atl1e/atl1e_main.c   |  2 +-
 .../net/ethernet/broadcom/bnx2x/bnx2x_cmn.c   |  2 +-
 drivers/net/ethernet/broadcom/tg3.c           |  2 +-
 .../ethernet/cavium/thunder/nicvf_queues.c    |  2 +-
 drivers/net/ethernet/chelsio/cxgb3/sge.c      |  2 +-
 drivers/net/ethernet/emulex/benet/be_main.c   |  2 +-
 .../net/ethernet/freescale/dpaa/dpaa_eth.c    |  2 +-
 drivers/net/ethernet/freescale/gianfar.c      |  3 +-
 drivers/net/ethernet/google/gve/gve_tx.c      |  2 +-
 drivers/net/ethernet/hisilicon/hix5hd2_gmac.c |  4 +--
 .../net/ethernet/hisilicon/hns3/hns3_enet.c   |  4 +--
 drivers/net/ethernet/huawei/hinic/hinic_rx.c  |  2 +-
 drivers/net/ethernet/huawei/hinic/hinic_tx.c  |  4 +--
 drivers/net/ethernet/ibm/ibmveth.c            |  2 +-
 drivers/net/ethernet/ibm/ibmvnic.c            |  2 +-
 drivers/net/ethernet/intel/fm10k/fm10k_main.c |  2 +-
 drivers/net/ethernet/intel/igb/igb_main.c     |  2 +-
 drivers/net/ethernet/intel/igbvf/netdev.c     |  2 +-
 drivers/net/ethernet/intel/igc/igc_main.c     |  2 +-
 drivers/net/ethernet/intel/ixgbe/ixgbe_main.c |  2 +-
 .../net/ethernet/intel/ixgbevf/ixgbevf_main.c |  2 +-
 drivers/net/ethernet/marvell/mv643xx_eth.c    |  2 +-
 .../net/ethernet/marvell/mvpp2/mvpp2_main.c   |  2 +-
 drivers/net/ethernet/marvell/skge.c           |  2 +-
 drivers/net/ethernet/marvell/sky2.c           |  8 ++---
 drivers/net/ethernet/mediatek/mtk_eth_soc.c   |  2 +-
 .../net/ethernet/mellanox/mlx5/core/en_tx.c   |  2 +-
 drivers/net/ethernet/mellanox/mlxsw/pci.c     |  2 +-
 drivers/net/ethernet/realtek/8139cp.c         |  2 +-
 drivers/net/ethernet/realtek/r8169_main.c     |  2 +-
 drivers/net/ethernet/rocker/rocker_main.c     |  2 +-
 drivers/net/ethernet/sfc/tx.c                 |  2 +-
 drivers/net/ethernet/sun/niu.c                |  4 +--
 drivers/net/ethernet/sun/sungem.c             |  2 +-
 drivers/net/ethernet/sun/sunhme.c             |  2 +-
 drivers/net/ethernet/sun/sunvnet_common.c     |  4 +--
 .../net/ethernet/synopsys/dwc-xlgmac-desc.c   |  2 +-
 .../net/ethernet/synopsys/dwc-xlgmac-net.c    |  2 +-
 drivers/net/ethernet/ti/am65-cpsw-nuss.c      |  2 +-
 drivers/net/ethernet/ti/netcp_core.c          |  2 +-
 drivers/net/ethernet/via/via-velocity.c       |  2 +-
 drivers/net/usb/usbnet.c                      |  2 +-
 drivers/net/vmxnet3/vmxnet3_drv.c             |  4 +--
 drivers/net/wireless/intel/iwlwifi/pcie/tx.c  |  2 +-
 drivers/net/wireless/intel/iwlwifi/queue/tx.c |  2 +-
 drivers/net/xen-netback/netback.c             |  2 +-
 drivers/net/xen-netfront.c                    |  2 +-
 drivers/s390/net/qeth_core_main.c             |  4 +--
 drivers/scsi/fcoe/fcoe_transport.c            |  2 +-
 drivers/staging/octeon/ethernet-tx.c          |  2 +-
 drivers/target/iscsi/cxgbit/cxgbit_target.c   |  4 +--
 include/linux/skbuff.h                        |  4 +++
 net/appletalk/ddp.c                           |  2 +-
 net/core/datagram.c                           |  4 +--
 net/core/dev.c                                |  2 +-
 net/core/skbuff.c                             | 32 +++++++++----------
 net/ipv4/inet_fragment.c                      |  2 +-
 net/ipv4/tcp.c                                |  2 +-
 net/ipv4/tcp_output.c                         |  2 +-
 net/iucv/af_iucv.c                            |  4 +--
 net/kcm/kcmsock.c                             |  3 +-
 net/tls/tls_sw.c                              |  2 +-
 76 files changed, 108 insertions(+), 106 deletions(-)

-- 
2.30.2