cregit-Linux how code gets into the kernel

Release 4.11 net/core/timestamping.c

Directory: net/core
/*
 * PTP 1588 clock support - support for timestamping in PHY devices
 *
 * Copyright (C) 2010 OMICRON electronics GmbH
 *
 *  This program is free software; you can redistribute it and/or modify
 *  it under the terms of the GNU General Public License as published by
 *  the Free Software Foundation; either version 2 of the License, or
 *  (at your option) any later version.
 *
 *  This program is distributed in the hope that it will be useful,
 *  but WITHOUT ANY WARRANTY; without even the implied warranty of
 *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 *  GNU General Public License for more details.
 *
 *  You should have received a copy of the GNU General Public License
 *  along with this program; if not, write to the Free Software
 *  Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
 */
#include <linux/errqueue.h>
#include <linux/phy.h>
#include <linux/ptp_classify.h>
#include <linux/skbuff.h>
#include <linux/export.h>


static unsigned int classify(const struct sk_buff *skb) { if (likely(skb->dev && skb->dev->phydev && skb->dev->phydev->drv)) return ptp_classify_raw(skb); else return PTP_CLASS_NONE; }

Contributors

PersonTokensPropCommitsCommitProp
Richard Cochran4393.48%125.00%
Daniel Borkmann24.35%250.00%
Eric Dumazet12.17%125.00%
Total46100.00%4100.00%


void skb_clone_tx_timestamp(struct sk_buff *skb) { struct phy_device *phydev; struct sk_buff *clone; unsigned int type; if (!skb->sk) return; type = classify(skb); if (type == PTP_CLASS_NONE) return; phydev = skb->dev->phydev; if (likely(phydev->drv->txtstamp)) { clone = skb_clone_sk(skb); if (!clone) return; phydev->drv->txtstamp(phydev, clone, type); } }

Contributors

PersonTokensPropCommitsCommitProp
Richard Cochran8692.47%133.33%
Stefan Sörensen44.30%133.33%
Alexander Duyck33.23%133.33%
Total93100.00%3100.00%

EXPORT_SYMBOL_GPL(skb_clone_tx_timestamp);
bool skb_defer_rx_timestamp(struct sk_buff *skb) { struct phy_device *phydev; unsigned int type; if (!skb->dev || !skb->dev->phydev || !skb->dev->phydev->drv) return false; if (skb_headroom(skb) < ETH_HLEN) return false; __skb_push(skb, ETH_HLEN); type = ptp_classify_raw(skb); __skb_pull(skb, ETH_HLEN); if (type == PTP_CLASS_NONE) return false; phydev = skb->dev->phydev; if (likely(phydev->drv->rxtstamp)) return phydev->drv->rxtstamp(phydev, skb, type); return false; }

Contributors

PersonTokensPropCommitsCommitProp
Richard Cochran7661.79%125.00%
Alexander Duyck2721.95%125.00%
Eric Dumazet1411.38%125.00%
Stefan Sörensen64.88%125.00%
Total123100.00%4100.00%

EXPORT_SYMBOL_GPL(skb_defer_rx_timestamp);

Overall Contributors

PersonTokensPropCommitsCommitProp
Richard Cochran22879.17%327.27%
Alexander Duyck3010.42%218.18%
Eric Dumazet155.21%218.18%
Stefan Sörensen103.47%19.09%
Paul Gortmaker31.04%19.09%
Daniel Borkmann20.69%218.18%
Total288100.00%11100.00%
Directory: net/core
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