cregit-Linux how code gets into the kernel

Release 4.11 net/dsa/switch.c

Directory: net/dsa
/*
 * Handling of a single switch chip, part of a switch fabric
 *
 * Copyright (c) 2017 Vivien Didelot <vivien.didelot@savoirfairelinux.com>
 *
 * 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.
 */

#include <linux/netdevice.h>
#include <linux/notifier.h>
#include <net/dsa.h>


static int dsa_switch_bridge_join(struct dsa_switch *ds, struct dsa_notifier_bridge_info *info) { if (ds->index == info->sw_index && ds->ops->port_bridge_join) return ds->ops->port_bridge_join(ds, info->port, info->br); if (ds->index != info->sw_index) dev_dbg(ds->dev, "crosschip DSA port %d.%d bridged to %s\n", info->sw_index, info->port, netdev_name(info->br)); return 0; }

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Vivien Didelot87100.00%1100.00%
Total87100.00%1100.00%


static int dsa_switch_bridge_leave(struct dsa_switch *ds, struct dsa_notifier_bridge_info *info) { if (ds->index == info->sw_index && ds->ops->port_bridge_leave) ds->ops->port_bridge_leave(ds, info->port, info->br); if (ds->index != info->sw_index) dev_dbg(ds->dev, "crosschip DSA port %d.%d unbridged from %s\n", info->sw_index, info->port, netdev_name(info->br)); return 0; }

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Vivien Didelot86100.00%1100.00%
Total86100.00%1100.00%


static int dsa_switch_event(struct notifier_block *nb, unsigned long event, void *info) { struct dsa_switch *ds = container_of(nb, struct dsa_switch, nb); int err; switch (event) { case DSA_NOTIFIER_BRIDGE_JOIN: err = dsa_switch_bridge_join(ds, info); break; case DSA_NOTIFIER_BRIDGE_LEAVE: err = dsa_switch_bridge_leave(ds, info); break; default: err = -EOPNOTSUPP; break; } /* Non-switchdev operations cannot be rolled back. If a DSA driver * returns an error during the chained call, switch chips may be in an * inconsistent state. */ if (err) dev_dbg(ds->dev, "breaking chain for DSA event %lu (%d)\n", event, err); return notifier_from_errno(err); }

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Vivien Didelot100100.00%2100.00%
Total100100.00%2100.00%


int dsa_switch_register_notifier(struct dsa_switch *ds) { ds->nb.notifier_call = dsa_switch_event; return raw_notifier_chain_register(&ds->dst->nh, &ds->nb); }

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Vivien Didelot34100.00%1100.00%
Total34100.00%1100.00%


void dsa_switch_unregister_notifier(struct dsa_switch *ds) { int err; err = raw_notifier_chain_unregister(&ds->dst->nh, &ds->nb); if (err) dev_err(ds->dev, "failed to unregister notifier (%d)\n", err); }

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PersonTokensPropCommitsCommitProp
Vivien Didelot45100.00%1100.00%
Total45100.00%1100.00%


Overall Contributors

PersonTokensPropCommitsCommitProp
Vivien Didelot362100.00%2100.00%
Total362100.00%2100.00%
Directory: net/dsa
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