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linux/net/tipc/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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/*
* net/tipc/trace.h: TIPC tracepoints
*
* Copyright (c) 2018, Ericsson AB
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions are met:
*
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
* 3. Neither the names of the copyright holders nor the names of its
* contributors may be used to endorse or promote products derived from
* this software without specific prior written permission.
*
* Alternatively, this software may be distributed under the terms of the
* GNU General Public License ("GPL") version 2 as published by the Free
* Software Foundation.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "ASIS"
* AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO,THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
* ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE
* LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
* CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
* SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
* INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
* CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
* POSSIBILITY OF SUCH DAMAGE.
*/
#undef TRACE_SYSTEM
#define TRACE_SYSTEM tipc
#if !defined(_TIPC_TRACE_H) || defined(TRACE_HEADER_MULTI_READ)
#define _TIPC_TRACE_H
#include <linux/tracepoint.h>
#include "core.h"
#include "link.h"
#include "socket.h"
#include "node.h"
#define SKB_LMIN (100)
#define SKB_LMAX (SKB_LMIN * 2)
#define LIST_LMIN (SKB_LMIN * 3)
#define LIST_LMAX (SKB_LMIN * 11)
#define SK_LMIN (SKB_LMIN * 2)
#define SK_LMAX (SKB_LMIN * 11)
#define LINK_LMIN (SKB_LMIN)
#define LINK_LMAX (SKB_LMIN * 16)
#define NODE_LMIN (SKB_LMIN)
#define NODE_LMAX (SKB_LMIN * 11)
#ifndef __TIPC_TRACE_ENUM
#define __TIPC_TRACE_ENUM
enum {
TIPC_DUMP_NONE = 0,
TIPC_DUMP_TRANSMQ = 1,
TIPC_DUMP_BACKLOGQ = (1 << 1),
TIPC_DUMP_DEFERDQ = (1 << 2),
TIPC_DUMP_INPUTQ = (1 << 3),
TIPC_DUMP_WAKEUP = (1 << 4),
TIPC_DUMP_SK_SNDQ = (1 << 8),
TIPC_DUMP_SK_RCVQ = (1 << 9),
TIPC_DUMP_SK_BKLGQ = (1 << 10),
TIPC_DUMP_ALL = 0xffffu
};
#endif
/* Link & Node FSM states: */
#define state_sym(val) \
__print_symbolic(val, \
{(0xe), "ESTABLISHED" },\
{(0xe << 4), "ESTABLISHING" },\
{(0x1 << 8), "RESET" },\
{(0x2 << 12), "RESETTING" },\
{(0xd << 16), "PEER_RESET" },\
{(0xf << 20), "FAILINGOVER" },\
{(0xc << 24), "SYNCHING" },\
{(0xdd), "SELF_DOWN_PEER_DOWN" },\
{(0xaa), "SELF_UP_PEER_UP" },\
{(0xd1), "SELF_DOWN_PEER_LEAVING" },\
{(0xac), "SELF_UP_PEER_COMING" },\
{(0xca), "SELF_COMING_PEER_UP" },\
{(0x1d), "SELF_LEAVING_PEER_DOWN" },\
{(0xf0), "FAILINGOVER" },\
{(0xcc), "SYNCHING" })
/* Link & Node FSM events: */
#define evt_sym(val) \
__print_symbolic(val, \
{(0xec1ab1e), "ESTABLISH_EVT" },\
{(0x9eed0e), "PEER_RESET_EVT" },\
{(0xfa110e), "FAILURE_EVT" },\
{(0x10ca1d0e), "RESET_EVT" },\
{(0xfa110bee), "FAILOVER_BEGIN_EVT" },\
{(0xfa110ede), "FAILOVER_END_EVT" },\
{(0xc1ccbee), "SYNCH_BEGIN_EVT" },\
{(0xc1ccede), "SYNCH_END_EVT" },\
{(0xece), "SELF_ESTABL_CONTACT_EVT" },\
{(0x1ce), "SELF_LOST_CONTACT_EVT" },\
{(0x9ece), "PEER_ESTABL_CONTACT_EVT" },\
{(0x91ce), "PEER_LOST_CONTACT_EVT" },\
{(0xfbe), "FAILOVER_BEGIN_EVT" },\
{(0xfee), "FAILOVER_END_EVT" },\
{(0xcbe), "SYNCH_BEGIN_EVT" },\
{(0xcee), "SYNCH_END_EVT" })
/* Bearer, net device events: */
#define dev_evt_sym(val) \
__print_symbolic(val, \
{(NETDEV_CHANGE), "NETDEV_CHANGE" },\
{(NETDEV_GOING_DOWN), "NETDEV_GOING_DOWN" },\
{(NETDEV_UP), "NETDEV_UP" },\
{(NETDEV_CHANGEMTU), "NETDEV_CHANGEMTU" },\
{(NETDEV_CHANGEADDR), "NETDEV_CHANGEADDR" },\
{(NETDEV_UNREGISTER), "NETDEV_UNREGISTER" },\
{(NETDEV_CHANGENAME), "NETDEV_CHANGENAME" })
extern unsigned long sysctl_tipc_sk_filter[5] __read_mostly;
int tipc_skb_dump(struct sk_buff *skb, bool more, char *buf);
int tipc_list_dump(struct sk_buff_head *list, bool more, char *buf);
int tipc_sk_dump(struct sock *sk, u16 dqueues, char *buf);
int tipc_link_dump(struct tipc_link *l, u16 dqueues, char *buf);
int tipc_node_dump(struct tipc_node *n, bool more, char *buf);
bool tipc_sk_filtering(struct sock *sk);
DECLARE_EVENT_CLASS(tipc_skb_class,
TP_PROTO(struct sk_buff *skb, bool more, const char *header),
TP_ARGS(skb, more, header),
TP_STRUCT__entry(
__string(header, header)
__dynamic_array(char, buf, (more) ? SKB_LMAX : SKB_LMIN)
),
TP_fast_assign(
__assign_str(header);
tipc_skb_dump(skb, more, __get_str(buf));
),
TP_printk("%s\n%s", __get_str(header), __get_str(buf))
)
#define DEFINE_SKB_EVENT(name) \
DEFINE_EVENT(tipc_skb_class, name, \
TP_PROTO(struct sk_buff *skb, bool more, const char *header), \
TP_ARGS(skb, more, header))
DEFINE_SKB_EVENT(tipc_skb_dump);
DEFINE_SKB_EVENT(tipc_proto_build);
DEFINE_SKB_EVENT(tipc_proto_rcv);
DECLARE_EVENT_CLASS(tipc_list_class,
TP_PROTO(struct sk_buff_head *list, bool more, const char *header),
TP_ARGS(list, more, header),
TP_STRUCT__entry(
__string(header, header)
__dynamic_array(char, buf, (more) ? LIST_LMAX : LIST_LMIN)
),
TP_fast_assign(
__assign_str(header);
tipc_list_dump(list, more, __get_str(buf));
),
TP_printk("%s\n%s", __get_str(header), __get_str(buf))
);
#define DEFINE_LIST_EVENT(name) \
DEFINE_EVENT(tipc_list_class, name, \
TP_PROTO(struct sk_buff_head *list, bool more, const char *header), \
TP_ARGS(list, more, header))
DEFINE_LIST_EVENT(tipc_list_dump);
DECLARE_EVENT_CLASS(tipc_sk_class,
TP_PROTO(struct sock *sk, struct sk_buff *skb, u16 dqueues,
const char *header),
TP_ARGS(sk, skb, dqueues, header),
TP_STRUCT__entry(
__string(header, header)
__field(u32, portid)
__dynamic_array(char, buf, (dqueues) ? SK_LMAX : SK_LMIN)
__dynamic_array(char, skb_buf, (skb) ? SKB_LMIN : 1)
),
TP_fast_assign(
__assign_str(header);
__entry->portid = tipc_sock_get_portid(sk);
tipc_sk_dump(sk, dqueues, __get_str(buf));
if (skb)
tipc_skb_dump(skb, false, __get_str(skb_buf));
else
*(__get_str(skb_buf)) = '\0';
),
TP_printk("<%u> %s\n%s%s", __entry->portid, __get_str(header),
__get_str(skb_buf), __get_str(buf))
);
#define DEFINE_SK_EVENT_FILTER(name) \
DEFINE_EVENT_CONDITION(tipc_sk_class, name, \
TP_PROTO(struct sock *sk, struct sk_buff *skb, u16 dqueues, \
const char *header), \
TP_ARGS(sk, skb, dqueues, header), \
TP_CONDITION(tipc_sk_filtering(sk)))
DEFINE_SK_EVENT_FILTER(tipc_sk_dump);
DEFINE_SK_EVENT_FILTER(tipc_sk_create);
DEFINE_SK_EVENT_FILTER(tipc_sk_sendmcast);
DEFINE_SK_EVENT_FILTER(tipc_sk_sendmsg);
DEFINE_SK_EVENT_FILTER(tipc_sk_sendstream);
DEFINE_SK_EVENT_FILTER(tipc_sk_poll);
DEFINE_SK_EVENT_FILTER(tipc_sk_filter_rcv);
DEFINE_SK_EVENT_FILTER(tipc_sk_advance_rx);
DEFINE_SK_EVENT_FILTER(tipc_sk_rej_msg);
DEFINE_SK_EVENT_FILTER(tipc_sk_drop_msg);
DEFINE_SK_EVENT_FILTER(tipc_sk_release);
DEFINE_SK_EVENT_FILTER(tipc_sk_shutdown);
#define DEFINE_SK_EVENT_FILTER_COND(name, cond) \
DEFINE_EVENT_CONDITION(tipc_sk_class, name, \
TP_PROTO(struct sock *sk, struct sk_buff *skb, u16 dqueues, \
const char *header), \
TP_ARGS(sk, skb, dqueues, header), \
TP_CONDITION(tipc_sk_filtering(sk) && (cond)))
DEFINE_SK_EVENT_FILTER_COND(tipc_sk_overlimit1, tipc_sk_overlimit1(sk, skb));
DEFINE_SK_EVENT_FILTER_COND(tipc_sk_overlimit2, tipc_sk_overlimit2(sk, skb));
DECLARE_EVENT_CLASS(tipc_link_class,
TP_PROTO(struct tipc_link *l, u16 dqueues, const char *header),
TP_ARGS(l, dqueues, header),
TP_STRUCT__entry(
__string(header, header)
__array(char, name, TIPC_MAX_LINK_NAME)
__dynamic_array(char, buf, (dqueues) ? LINK_LMAX : LINK_LMIN)
),
TP_fast_assign(
__assign_str(header);
memcpy(__entry->name, tipc_link_name(l), TIPC_MAX_LINK_NAME);
tipc_link_dump(l, dqueues, __get_str(buf));
),
TP_printk("<%s> %s\n%s", __entry->name, __get_str(header),
__get_str(buf))
);
#define DEFINE_LINK_EVENT(name) \
DEFINE_EVENT(tipc_link_class, name, \
TP_PROTO(struct tipc_link *l, u16 dqueues, const char *header), \
TP_ARGS(l, dqueues, header))
DEFINE_LINK_EVENT(tipc_link_dump);
DEFINE_LINK_EVENT(tipc_link_conges);
DEFINE_LINK_EVENT(tipc_link_timeout);
DEFINE_LINK_EVENT(tipc_link_reset);
#define DEFINE_LINK_EVENT_COND(name, cond) \
DEFINE_EVENT_CONDITION(tipc_link_class, name, \
TP_PROTO(struct tipc_link *l, u16 dqueues, const char *header), \
TP_ARGS(l, dqueues, header), \
TP_CONDITION(cond))
DEFINE_LINK_EVENT_COND(tipc_link_too_silent, tipc_link_too_silent(l));
DECLARE_EVENT_CLASS(tipc_link_transmq_class,
TP_PROTO(struct tipc_link *r, u16 f, u16 t, struct sk_buff_head *tq),
TP_ARGS(r, f, t, tq),
TP_STRUCT__entry(
__array(char, name, TIPC_MAX_LINK_NAME)
__field(u16, from)
__field(u16, to)
__field(u32, len)
__field(u16, fseqno)
__field(u16, lseqno)
),
TP_fast_assign(
memcpy(__entry->name, tipc_link_name(r), TIPC_MAX_LINK_NAME);
__entry->from = f;
__entry->to = t;
__entry->len = skb_queue_len(tq);
__entry->fseqno = __entry->len ?
msg_seqno(buf_msg(skb_peek(tq))) : 0;
__entry->lseqno = __entry->len ?
msg_seqno(buf_msg(skb_peek_tail(tq))) : 0;
),
TP_printk("<%s> retrans req: [%u-%u] transmq: %u [%u-%u]\n",
__entry->name, __entry->from, __entry->to,
__entry->len, __entry->fseqno, __entry->lseqno)
);
DEFINE_EVENT_CONDITION(tipc_link_transmq_class, tipc_link_retrans,
TP_PROTO(struct tipc_link *r, u16 f, u16 t, struct sk_buff_head *tq),
TP_ARGS(r, f, t, tq),
TP_CONDITION(less_eq(f, t))
);
DEFINE_EVENT_PRINT(tipc_link_transmq_class, tipc_link_bc_ack,
TP_PROTO(struct tipc_link *r, u16 f, u16 t, struct sk_buff_head *tq),
TP_ARGS(r, f, t, tq),
TP_printk("<%s> acked: %u gap: %u transmq: %u [%u-%u]\n",
__entry->name, __entry->from, __entry->to,
__entry->len, __entry->fseqno, __entry->lseqno)
);
DECLARE_EVENT_CLASS(tipc_node_class,
TP_PROTO(struct tipc_node *n, bool more, const char *header),
TP_ARGS(n, more, header),
TP_STRUCT__entry(
__string(header, header)
__field(u32, addr)
__dynamic_array(char, buf, (more) ? NODE_LMAX : NODE_LMIN)
),
TP_fast_assign(
__assign_str(header);
__entry->addr = tipc_node_get_addr(n);
tipc_node_dump(n, more, __get_str(buf));
),
TP_printk("<%x> %s\n%s", __entry->addr, __get_str(header),
__get_str(buf))
);
#define DEFINE_NODE_EVENT(name) \
DEFINE_EVENT(tipc_node_class, name, \
TP_PROTO(struct tipc_node *n, bool more, const char *header), \
TP_ARGS(n, more, header))
DEFINE_NODE_EVENT(tipc_node_dump);
DEFINE_NODE_EVENT(tipc_node_create);
DEFINE_NODE_EVENT(tipc_node_delete);
DEFINE_NODE_EVENT(tipc_node_lost_contact);
DEFINE_NODE_EVENT(tipc_node_timeout);
DEFINE_NODE_EVENT(tipc_node_link_up);
DEFINE_NODE_EVENT(tipc_node_link_down);
DEFINE_NODE_EVENT(tipc_node_reset_links);
DEFINE_NODE_EVENT(tipc_node_check_state);
DECLARE_EVENT_CLASS(tipc_fsm_class,
TP_PROTO(const char *name, u32 os, u32 ns, int evt),
TP_ARGS(name, os, ns, evt),
TP_STRUCT__entry(
__string(name, name)
__field(u32, os)
__field(u32, ns)
__field(u32, evt)
),
TP_fast_assign(
__assign_str(name);
__entry->os = os;
__entry->ns = ns;
__entry->evt = evt;
),
TP_printk("<%s> %s--(%s)->%s\n", __get_str(name),
state_sym(__entry->os), evt_sym(__entry->evt),
state_sym(__entry->ns))
);
#define DEFINE_FSM_EVENT(fsm_name) \
DEFINE_EVENT(tipc_fsm_class, fsm_name, \
TP_PROTO(const char *name, u32 os, u32 ns, int evt), \
TP_ARGS(name, os, ns, evt))
DEFINE_FSM_EVENT(tipc_link_fsm);
DEFINE_FSM_EVENT(tipc_node_fsm);
TRACE_EVENT(tipc_l2_device_event,
TP_PROTO(struct net_device *dev, struct tipc_bearer *b,
unsigned long evt),
TP_ARGS(dev, b, evt),
TP_STRUCT__entry(
__string(dev_name, dev->name)
__string(b_name, b->name)
__field(unsigned long, evt)
__field(u8, b_up)
__field(u8, carrier)
__field(u8, oper)
),
TP_fast_assign(
__assign_str(dev_name);
__assign_str(b_name);
__entry->evt = evt;
__entry->b_up = test_bit(0, &b->up);
__entry->carrier = netif_carrier_ok(dev);
__entry->oper = netif_oper_up(dev);
),
TP_printk("%s on: <%s>/<%s> oper: %s carrier: %s bearer: %s\n",
dev_evt_sym(__entry->evt), __get_str(dev_name),
__get_str(b_name), (__entry->oper) ? "up" : "down",
(__entry->carrier) ? "ok" : "notok",
(__entry->b_up) ? "up" : "down")
);
#endif /* _TIPC_TRACE_H */
/* This part must be outside protection */
#undef TRACE_INCLUDE_PATH
#define TRACE_INCLUDE_PATH .
#undef TRACE_INCLUDE_FILE
#define TRACE_INCLUDE_FILE trace
#include <trace/define_trace.h>
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