#include "cache.h" #include "util.h" #include "config.h" static const char *alias_key; static char *alias_val; static int alias_lookup_cb(const char *k, const char *v, void *cb __maybe_unused) { if (!prefixcmp(k, "alias.") && !strcmp(k+6, alias_key)) { if (!v) return config_error_nonbool(k); alias_val = strdup(v); return 0; } return 0; } char *alias_lookup(const char *alias) { alias_key = alias; alias_val = NULL; perf_config(alias_lookup_cb, NULL); return alias_val; } int split_cmdline(char *cmdline, const char ***argv) { int src, dst, count = 0, size = 16; char quoted = 0; *argv = malloc(sizeof(char*) * size); /* split alias_string */ (*argv)[count++] = cmdline; for (src = dst = 0; cmdline[src];) { char c = cmdline[src]; if (!quoted && isspace(c)) { cmdline[dst++] = 0; while (cmdline[++src] && isspace(cmdline[src])) ; /* skip */ if (count >= size) { size += 16; *argv = realloc(*argv, sizeof(char*) * size); } (*argv)[count++] = cmdline + dst; } else if (!quoted && (c == '\'' || c == '"')) { quoted = c; src++; } else if (c == quoted) { quoted = 0; src++; } else { if (c == '\\' && quoted != '\'') { src++; c = cmdline[src]; if (!c) { zfree(argv); return error("cmdline ends with \\"); } } cmdline[dst++] = c; src++; } } cmdline[dst] = 0; if (quoted) { zfree(argv); return error("unclosed quote"); } return count; } ias Klauser
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2017-02-07net: dsa: Do not clobber PHY link outside of state machineFlorian Fainelli1-7/+3
Calling phy_read_status() means that we may call into genphy_read_status() which in turn will use genphy_update_link() which can make changes to phydev->link outside of the state machine's state transitions. This is an invalid behavior that is now caught as of 811a919135b9 ("phy state machine: failsafe leave invalid RUNNING state") Reported-by: Zefir Kurtisi <zefir.kurtisi@neratec.com> Signed-off-by: Florian Fainelli <f.fainelli@gmail.com> Reviewed-by: Andrew Lunn <andrew@lunn.ch> Signed-off-by: David S. Miller <davem@davemloft.net>
2017-02-07net: dsa: Add support for platform dataFlorian Fainelli1-18/+84
Allow drivers to use the new DSA API with platform data. Most of the code in net/dsa/dsa2.c does not rely so much on device_nodes and can get the same information from platform_data instead. We purposely do not support distributed configurations with platform data, so drivers should be providing a pointer to a 'struct dsa_chip_data' structure if they wish to communicate per-port layout. Multiple CPUs port could potentially be supported and dsa_chip_data is extended to receive up to one reference to an upstream network device per port described by a dsa_chip_data structure. dsa_dev_to_net_device() increments the network device's reference count, so we intentionally call dev_put() to be consistent with the DT-enabled path, until we have a generic notifier based solution. Signed-off-by: Florian Fainelli <f.fainelli@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2017-02-07net: dsa: Rename and export dev_to_net_device()Florian Fainelli1-2/+3
In preparation for using this function in net/dsa/dsa2.c, rename the function to make its scope DSA specific, and export it. Signed-off-by: Florian Fainelli <f.fainelli@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2017-02-06net: dsa: introduce bridge notifierVivien Didelot2-11/+61
A slave device will now notify the switch fabric once its port is bridged or unbridged, instead of calling directly its switch operations. This code allows propagating cross-chip bridging events in the fabric. Signed-off-by: Vivien Didelot <vivien.didelot@savoirfairelinux.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2017-02-06net: dsa: add switch notifierVivien Didelot5-0/+70
Add a notifier block per DSA switch, registered against a notifier head in the switch fabric they belong to. This infrastructure will allow to propagate fabric-wide events such as port bridging, VLAN configuration, etc. If a DSA switch driver cares about cross-chip configuration, such events can be caught. Signed-off-by: Vivien Didelot <vivien.didelot@savoirfairelinux.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2017-02-06net: dsa: change state setter scopeVivien Didelot1-6/+9
The scope of the functions inside net/dsa/slave.c must be the slave net_device pointer. Change to state setter helper accordingly to simplify callers. Signed-off-by: Vivien Didelot <vivien.didelot@savoirfairelinux.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2017-02-06net: dsa: rollback bridging on errorVivien Didelot1-1/+13
When an error is returned during the bridging of a port in a NETDEV_CHANGEUPPER event, net/core/dev.c rolls back the operation. Be consistent and unassign dp->bridge_dev when this happens. In the meantime, add comments to document this behavior. Signed-off-by: Vivien Didelot <vivien.didelot@savoirfairelinux.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2017-02-06net: dsa: simplify netdevice events handlingVivien Didelot1-28/+16
Simplify the code handling the slave netdevice notifier call by providing a dsa_slave_changeupper helper for NETDEV_CHANGEUPPER, and so on (only this event is supported at the moment.) Return NOTIFY_DONE when we did not care about an event, and NOTIFY_OK when we were concerned but no error occurred, as the API suggests. Signed-off-by: Vivien Didelot <vivien.didelot@savoirfairelinux.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2017-02-06net: dsa: move netdevice notifier registrationVivien Didelot3-10/+26
Move the netdevice notifier block register code in slave.c and provide helpers for dsa.c to register and unregister it. At the same time, check for errors since (un)register_netdevice_notifier may fail. Signed-off-by: Vivien Didelot <vivien.didelot@savoirfairelinux.com> Signed-off-by: David S. Miller <davem@davemloft.net>