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kernel/net/dsa/trace.h
Steven Rostedt (Google) 2c92ca849f tracing/treewide: Remove second parameter of __assign_str() 
With the rework of how the __string() handles dynamic strings where it
saves off the source string in field in the helper structure[1], the
assignment of that value to the trace event field is stored in the helper
value and does not need to be passed in again.

This means that with:

  __string(field, mystring)

Which use to be assigned with __assign_str(field, mystring), no longer
needs the second parameter and it is unused. With this, __assign_str()
will now only get a single parameter.

There's over 700 users of __assign_str() and because coccinelle does not
handle the TRACE_EVENT() macro I ended up using the following sed script:

  git grep -l __assign_str | while read a ; do
      sed -e 's/\(__assign_str([^,]*[^ ,]\) *,[^;]*/\1)/' $a > /tmp/test-file;
      mv /tmp/test-file $a;
  done

I then searched for __assign_str() that did not end with ';' as those
were multi line assignments that the sed script above would fail to catch.

Note, the same updates will need to be done for:

  __assign_str_len()
  __assign_rel_str()
  __assign_rel_str_len()

I tested this with both an allmodconfig and an allyesconfig (build only for both).

[1] https://lore.kernel.org/linux-trace-kernel/20240222211442.634192653@goodmis.org/

Link: https://lore.kernel.org/linux-trace-kernel/20240516133454.681ba6a0@rorschach.local.home

Cc: Masami Hiramatsu <mhiramat@kernel.org>
Cc: Mathieu Desnoyers <mathieu.desnoyers@efficios.com>
Cc: Linus Torvalds <torvalds@linux-foundation.org>
Cc: Julia Lawall <Julia.Lawall@inria.fr>
Signed-off-by: Steven Rostedt (Google) <rostedt@goodmis.org>
Acked-by: Jani Nikula <jani.nikula@intel.com>
Acked-by: Christian König <christian.koenig@amd.com> for the amdgpu parts.
Acked-by: Thomas Hellström <thomas.hellstrom@linux.intel.com> #for
Acked-by: Rafael J. Wysocki <rafael@kernel.org> # for thermal
Acked-by: Takashi Iwai <tiwai@suse.de>
Acked-by: Darrick J. Wong <djwong@kernel.org>	# xfs
Tested-by: Guenter Roeck <linux@roeck-us.net>
2024-05-22 20:14:47 -04:00

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/* SPDX-License-Identifier: GPL-2.0
* Copyright 2022-2023 NXP
*/
#undef TRACE_SYSTEM
#define TRACE_SYSTEM dsa
#if !defined(_NET_DSA_TRACE_H) || defined(TRACE_HEADER_MULTI_READ)
#define _NET_DSA_TRACE_H
#include <net/dsa.h>
#include <net/switchdev.h>
#include <linux/etherdevice.h>
#include <linux/if_bridge.h>
#include <linux/refcount.h>
#include <linux/tracepoint.h>
/* Enough to fit "bridge %s num %d" where num has 3 digits */
#define DSA_DB_BUFSIZ (IFNAMSIZ + 16)
void dsa_db_print(const struct dsa_db *db, char buf[DSA_DB_BUFSIZ]);
const char *dsa_port_kind(const struct dsa_port *dp);
DECLARE_EVENT_CLASS(dsa_port_addr_op_hw,
TP_PROTO(const struct dsa_port *dp, const unsigned char *addr, u16 vid,
const struct dsa_db *db, int err),
TP_ARGS(dp, addr, vid, db, err),
TP_STRUCT__entry(
__string(dev, dev_name(dp->ds->dev))
__string(kind, dsa_port_kind(dp))
__field(int, port)
__array(unsigned char, addr, ETH_ALEN)
__field(u16, vid)
__array(char, db_buf, DSA_DB_BUFSIZ)
__field(int, err)
),
TP_fast_assign(
__assign_str(dev);
__assign_str(kind);
__entry->port = dp->index;
ether_addr_copy(__entry->addr, addr);
__entry->vid = vid;
dsa_db_print(db, __entry->db_buf);
__entry->err = err;
),
TP_printk("%s %s port %d addr %pM vid %u db \"%s\" err %d",
__get_str(dev), __get_str(kind), __entry->port, __entry->addr,
__entry->vid, __entry->db_buf, __entry->err)
);
/* Add unicast/multicast address to hardware, either on user ports
* (where no refcounting is kept), or on shared ports when the entry
* is first seen and its refcount is 1.
*/
DEFINE_EVENT(dsa_port_addr_op_hw, dsa_fdb_add_hw,
TP_PROTO(const struct dsa_port *dp, const unsigned char *addr,
u16 vid, const struct dsa_db *db, int err),
TP_ARGS(dp, addr, vid, db, err));
DEFINE_EVENT(dsa_port_addr_op_hw, dsa_mdb_add_hw,
TP_PROTO(const struct dsa_port *dp, const unsigned char *addr,
u16 vid, const struct dsa_db *db, int err),
TP_ARGS(dp, addr, vid, db, err));
/* Delete unicast/multicast address from hardware, either on user ports or
* when the refcount on shared ports reaches 0
*/
DEFINE_EVENT(dsa_port_addr_op_hw, dsa_fdb_del_hw,
TP_PROTO(const struct dsa_port *dp, const unsigned char *addr,
u16 vid, const struct dsa_db *db, int err),
TP_ARGS(dp, addr, vid, db, err));
DEFINE_EVENT(dsa_port_addr_op_hw, dsa_mdb_del_hw,
TP_PROTO(const struct dsa_port *dp, const unsigned char *addr,
u16 vid, const struct dsa_db *db, int err),
TP_ARGS(dp, addr, vid, db, err));
DECLARE_EVENT_CLASS(dsa_port_addr_op_refcount,
TP_PROTO(const struct dsa_port *dp, const unsigned char *addr, u16 vid,
const struct dsa_db *db, const refcount_t *refcount),
TP_ARGS(dp, addr, vid, db, refcount),
TP_STRUCT__entry(
__string(dev, dev_name(dp->ds->dev))
__string(kind, dsa_port_kind(dp))
__field(int, port)
__array(unsigned char, addr, ETH_ALEN)
__field(u16, vid)
__array(char, db_buf, DSA_DB_BUFSIZ)
__field(unsigned int, refcount)
),
TP_fast_assign(
__assign_str(dev);
__assign_str(kind);
__entry->port = dp->index;
ether_addr_copy(__entry->addr, addr);
__entry->vid = vid;
dsa_db_print(db, __entry->db_buf);
__entry->refcount = refcount_read(refcount);
),
TP_printk("%s %s port %d addr %pM vid %u db \"%s\" refcount %u",
__get_str(dev), __get_str(kind), __entry->port, __entry->addr,
__entry->vid, __entry->db_buf, __entry->refcount)
);
/* Bump the refcount of an existing unicast/multicast address on shared ports */
DEFINE_EVENT(dsa_port_addr_op_refcount, dsa_fdb_add_bump,
TP_PROTO(const struct dsa_port *dp, const unsigned char *addr,
u16 vid, const struct dsa_db *db,
const refcount_t *refcount),
TP_ARGS(dp, addr, vid, db, refcount));
DEFINE_EVENT(dsa_port_addr_op_refcount, dsa_mdb_add_bump,
TP_PROTO(const struct dsa_port *dp, const unsigned char *addr,
u16 vid, const struct dsa_db *db,
const refcount_t *refcount),
TP_ARGS(dp, addr, vid, db, refcount));
/* Drop the refcount of a multicast address that we still keep on
* shared ports
*/
DEFINE_EVENT(dsa_port_addr_op_refcount, dsa_fdb_del_drop,
TP_PROTO(const struct dsa_port *dp, const unsigned char *addr,
u16 vid, const struct dsa_db *db,
const refcount_t *refcount),
TP_ARGS(dp, addr, vid, db, refcount));
DEFINE_EVENT(dsa_port_addr_op_refcount, dsa_mdb_del_drop,
TP_PROTO(const struct dsa_port *dp, const unsigned char *addr,
u16 vid, const struct dsa_db *db,
const refcount_t *refcount),
TP_ARGS(dp, addr, vid, db, refcount));
DECLARE_EVENT_CLASS(dsa_port_addr_del_not_found,
TP_PROTO(const struct dsa_port *dp, const unsigned char *addr, u16 vid,
const struct dsa_db *db),
TP_ARGS(dp, addr, vid, db),
TP_STRUCT__entry(
__string(dev, dev_name(dp->ds->dev))
__string(kind, dsa_port_kind(dp))
__field(int, port)
__array(unsigned char, addr, ETH_ALEN)
__field(u16, vid)
__array(char, db_buf, DSA_DB_BUFSIZ)
),
TP_fast_assign(
__assign_str(dev);
__assign_str(kind);
__entry->port = dp->index;
ether_addr_copy(__entry->addr, addr);
__entry->vid = vid;
dsa_db_print(db, __entry->db_buf);
),
TP_printk("%s %s port %d addr %pM vid %u db \"%s\"",
__get_str(dev), __get_str(kind), __entry->port,
__entry->addr, __entry->vid, __entry->db_buf)
);
/* Attempt to delete a unicast/multicast address on shared ports for which
* the delete operation was called more times than the addition
*/
DEFINE_EVENT(dsa_port_addr_del_not_found, dsa_fdb_del_not_found,
TP_PROTO(const struct dsa_port *dp, const unsigned char *addr,
u16 vid, const struct dsa_db *db),
TP_ARGS(dp, addr, vid, db));
DEFINE_EVENT(dsa_port_addr_del_not_found, dsa_mdb_del_not_found,
TP_PROTO(const struct dsa_port *dp, const unsigned char *addr,
u16 vid, const struct dsa_db *db),
TP_ARGS(dp, addr, vid, db));
TRACE_EVENT(dsa_lag_fdb_add_hw,
TP_PROTO(const struct net_device *lag_dev, const unsigned char *addr,
u16 vid, const struct dsa_db *db, int err),
TP_ARGS(lag_dev, addr, vid, db, err),
TP_STRUCT__entry(
__string(dev, lag_dev->name)
__array(unsigned char, addr, ETH_ALEN)
__field(u16, vid)
__array(char, db_buf, DSA_DB_BUFSIZ)
__field(int, err)
),
TP_fast_assign(
__assign_str(dev);
ether_addr_copy(__entry->addr, addr);
__entry->vid = vid;
dsa_db_print(db, __entry->db_buf);
__entry->err = err;
),
TP_printk("%s addr %pM vid %u db \"%s\" err %d",
__get_str(dev), __entry->addr, __entry->vid,
__entry->db_buf, __entry->err)
);
TRACE_EVENT(dsa_lag_fdb_add_bump,
TP_PROTO(const struct net_device *lag_dev, const unsigned char *addr,
u16 vid, const struct dsa_db *db, const refcount_t *refcount),
TP_ARGS(lag_dev, addr, vid, db, refcount),
TP_STRUCT__entry(
__string(dev, lag_dev->name)
__array(unsigned char, addr, ETH_ALEN)
__field(u16, vid)
__array(char, db_buf, DSA_DB_BUFSIZ)
__field(unsigned int, refcount)
),
TP_fast_assign(
__assign_str(dev);
ether_addr_copy(__entry->addr, addr);
__entry->vid = vid;
dsa_db_print(db, __entry->db_buf);
__entry->refcount = refcount_read(refcount);
),
TP_printk("%s addr %pM vid %u db \"%s\" refcount %u",
__get_str(dev), __entry->addr, __entry->vid,
__entry->db_buf, __entry->refcount)
);
TRACE_EVENT(dsa_lag_fdb_del_hw,
TP_PROTO(const struct net_device *lag_dev, const unsigned char *addr,
u16 vid, const struct dsa_db *db, int err),
TP_ARGS(lag_dev, addr, vid, db, err),
TP_STRUCT__entry(
__string(dev, lag_dev->name)
__array(unsigned char, addr, ETH_ALEN)
__field(u16, vid)
__array(char, db_buf, DSA_DB_BUFSIZ)
__field(int, err)
),
TP_fast_assign(
__assign_str(dev);
ether_addr_copy(__entry->addr, addr);
__entry->vid = vid;
dsa_db_print(db, __entry->db_buf);
__entry->err = err;
),
TP_printk("%s addr %pM vid %u db \"%s\" err %d",
__get_str(dev), __entry->addr, __entry->vid,
__entry->db_buf, __entry->err)
);
TRACE_EVENT(dsa_lag_fdb_del_drop,
TP_PROTO(const struct net_device *lag_dev, const unsigned char *addr,
u16 vid, const struct dsa_db *db, const refcount_t *refcount),
TP_ARGS(lag_dev, addr, vid, db, refcount),
TP_STRUCT__entry(
__string(dev, lag_dev->name)
__array(unsigned char, addr, ETH_ALEN)
__field(u16, vid)
__array(char, db_buf, DSA_DB_BUFSIZ)
__field(unsigned int, refcount)
),
TP_fast_assign(
__assign_str(dev);
ether_addr_copy(__entry->addr, addr);
__entry->vid = vid;
dsa_db_print(db, __entry->db_buf);
__entry->refcount = refcount_read(refcount);
),
TP_printk("%s addr %pM vid %u db \"%s\" refcount %u",
__get_str(dev), __entry->addr, __entry->vid,
__entry->db_buf, __entry->refcount)
);
TRACE_EVENT(dsa_lag_fdb_del_not_found,
TP_PROTO(const struct net_device *lag_dev, const unsigned char *addr,
u16 vid, const struct dsa_db *db),
TP_ARGS(lag_dev, addr, vid, db),
TP_STRUCT__entry(
__string(dev, lag_dev->name)
__array(unsigned char, addr, ETH_ALEN)
__field(u16, vid)
__array(char, db_buf, DSA_DB_BUFSIZ)
),
TP_fast_assign(
__assign_str(dev);
ether_addr_copy(__entry->addr, addr);
__entry->vid = vid;
dsa_db_print(db, __entry->db_buf);
),
TP_printk("%s addr %pM vid %u db \"%s\"",
__get_str(dev), __entry->addr, __entry->vid, __entry->db_buf)
);
DECLARE_EVENT_CLASS(dsa_vlan_op_hw,
TP_PROTO(const struct dsa_port *dp,
const struct switchdev_obj_port_vlan *vlan, int err),
TP_ARGS(dp, vlan, err),
TP_STRUCT__entry(
__string(dev, dev_name(dp->ds->dev))
__string(kind, dsa_port_kind(dp))
__field(int, port)
__field(u16, vid)
__field(u16, flags)
__field(bool, changed)
__field(int, err)
),
TP_fast_assign(
__assign_str(dev);
__assign_str(kind);
__entry->port = dp->index;
__entry->vid = vlan->vid;
__entry->flags = vlan->flags;
__entry->changed = vlan->changed;
__entry->err = err;
),
TP_printk("%s %s port %d vid %u%s%s%s",
__get_str(dev), __get_str(kind), __entry->port, __entry->vid,
__entry->flags & BRIDGE_VLAN_INFO_PVID ? " pvid" : "",
__entry->flags & BRIDGE_VLAN_INFO_UNTAGGED ? " untagged" : "",
__entry->changed ? " (changed)" : "")
);
DEFINE_EVENT(dsa_vlan_op_hw, dsa_vlan_add_hw,
TP_PROTO(const struct dsa_port *dp,
const struct switchdev_obj_port_vlan *vlan, int err),
TP_ARGS(dp, vlan, err));
DEFINE_EVENT(dsa_vlan_op_hw, dsa_vlan_del_hw,
TP_PROTO(const struct dsa_port *dp,
const struct switchdev_obj_port_vlan *vlan, int err),
TP_ARGS(dp, vlan, err));
DECLARE_EVENT_CLASS(dsa_vlan_op_refcount,
TP_PROTO(const struct dsa_port *dp,
const struct switchdev_obj_port_vlan *vlan,
const refcount_t *refcount),
TP_ARGS(dp, vlan, refcount),
TP_STRUCT__entry(
__string(dev, dev_name(dp->ds->dev))
__string(kind, dsa_port_kind(dp))
__field(int, port)
__field(u16, vid)
__field(u16, flags)
__field(bool, changed)
__field(unsigned int, refcount)
),
TP_fast_assign(
__assign_str(dev);
__assign_str(kind);
__entry->port = dp->index;
__entry->vid = vlan->vid;
__entry->flags = vlan->flags;
__entry->changed = vlan->changed;
__entry->refcount = refcount_read(refcount);
),
TP_printk("%s %s port %d vid %u%s%s%s refcount %u",
__get_str(dev), __get_str(kind), __entry->port, __entry->vid,
__entry->flags & BRIDGE_VLAN_INFO_PVID ? " pvid" : "",
__entry->flags & BRIDGE_VLAN_INFO_UNTAGGED ? " untagged" : "",
__entry->changed ? " (changed)" : "", __entry->refcount)
);
DEFINE_EVENT(dsa_vlan_op_refcount, dsa_vlan_add_bump,
TP_PROTO(const struct dsa_port *dp,
const struct switchdev_obj_port_vlan *vlan,
const refcount_t *refcount),
TP_ARGS(dp, vlan, refcount));
DEFINE_EVENT(dsa_vlan_op_refcount, dsa_vlan_del_drop,
TP_PROTO(const struct dsa_port *dp,
const struct switchdev_obj_port_vlan *vlan,
const refcount_t *refcount),
TP_ARGS(dp, vlan, refcount));
TRACE_EVENT(dsa_vlan_del_not_found,
TP_PROTO(const struct dsa_port *dp,
const struct switchdev_obj_port_vlan *vlan),
TP_ARGS(dp, vlan),
TP_STRUCT__entry(
__string(dev, dev_name(dp->ds->dev))
__string(kind, dsa_port_kind(dp))
__field(int, port)
__field(u16, vid)
),
TP_fast_assign(
__assign_str(dev);
__assign_str(kind);
__entry->port = dp->index;
__entry->vid = vlan->vid;
),
TP_printk("%s %s port %d vid %u",
__get_str(dev), __get_str(kind), __entry->port, __entry->vid)
);
#endif /* _NET_DSA_TRACE_H */
/* We don't want to use include/trace/events */
#undef TRACE_INCLUDE_PATH
#define TRACE_INCLUDE_PATH .
#undef TRACE_INCLUDE_FILE
#define TRACE_INCLUDE_FILE trace
/* This part must be outside protection */
#include <trace/define_trace.h>
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