mirror of
https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git
synced 2024-12-28 16:56:26 +00:00
2c92ca849f
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>
65 lines
1.4 KiB
C
65 lines
1.4 KiB
C
/* SPDX-License-Identifier: GPL-2.0 */
|
|
/* Copyright (C) B.A.T.M.A.N. contributors:
|
|
*
|
|
* Sven Eckelmann
|
|
*/
|
|
|
|
#if !defined(_NET_BATMAN_ADV_TRACE_H_) || defined(TRACE_HEADER_MULTI_READ)
|
|
#define _NET_BATMAN_ADV_TRACE_H_
|
|
|
|
#include "main.h"
|
|
|
|
#include <linux/netdevice.h>
|
|
#include <linux/percpu.h>
|
|
#include <linux/printk.h>
|
|
#include <linux/tracepoint.h>
|
|
|
|
#undef TRACE_SYSTEM
|
|
#define TRACE_SYSTEM batadv
|
|
|
|
/* provide dummy function when tracing is disabled */
|
|
#if !defined(CONFIG_BATMAN_ADV_TRACING)
|
|
|
|
#undef TRACE_EVENT
|
|
#define TRACE_EVENT(name, proto, ...) \
|
|
static inline void trace_ ## name(proto) {}
|
|
|
|
#endif /* CONFIG_BATMAN_ADV_TRACING */
|
|
|
|
TRACE_EVENT(batadv_dbg,
|
|
|
|
TP_PROTO(struct batadv_priv *bat_priv,
|
|
struct va_format *vaf),
|
|
|
|
TP_ARGS(bat_priv, vaf),
|
|
|
|
TP_STRUCT__entry(
|
|
__string(device, bat_priv->soft_iface->name)
|
|
__string(driver, KBUILD_MODNAME)
|
|
__vstring(msg, vaf->fmt, vaf->va)
|
|
),
|
|
|
|
TP_fast_assign(
|
|
__assign_str(device);
|
|
__assign_str(driver);
|
|
__assign_vstr(msg, vaf->fmt, vaf->va);
|
|
),
|
|
|
|
TP_printk(
|
|
"%s %s %s",
|
|
__get_str(driver),
|
|
__get_str(device),
|
|
__get_str(msg)
|
|
)
|
|
);
|
|
|
|
#endif /* _NET_BATMAN_ADV_TRACE_H_ || TRACE_HEADER_MULTI_READ */
|
|
|
|
#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>
|