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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>
285 lines
5.3 KiB
C
285 lines
5.3 KiB
C
/* SPDX-License-Identifier: GPL-2.0 */
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#undef TRACE_SYSTEM
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#define TRACE_SYSTEM regmap
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#if !defined(_TRACE_REGMAP_H) || defined(TRACE_HEADER_MULTI_READ)
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#define _TRACE_REGMAP_H
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#include <linux/ktime.h>
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#include <linux/tracepoint.h>
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#include "internal.h"
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/*
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* Log register events
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*/
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DECLARE_EVENT_CLASS(regmap_reg,
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TP_PROTO(struct regmap *map, unsigned int reg,
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unsigned int val),
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TP_ARGS(map, reg, val),
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TP_STRUCT__entry(
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__string( name, regmap_name(map) )
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__field( unsigned int, reg )
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__field( unsigned int, val )
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),
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TP_fast_assign(
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__assign_str(name);
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__entry->reg = reg;
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__entry->val = val;
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),
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TP_printk("%s reg=%x val=%x", __get_str(name), __entry->reg, __entry->val)
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);
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DEFINE_EVENT(regmap_reg, regmap_reg_write,
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TP_PROTO(struct regmap *map, unsigned int reg,
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unsigned int val),
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TP_ARGS(map, reg, val)
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);
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DEFINE_EVENT(regmap_reg, regmap_reg_read,
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TP_PROTO(struct regmap *map, unsigned int reg,
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unsigned int val),
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TP_ARGS(map, reg, val)
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);
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DEFINE_EVENT(regmap_reg, regmap_reg_read_cache,
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TP_PROTO(struct regmap *map, unsigned int reg,
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unsigned int val),
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TP_ARGS(map, reg, val)
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);
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DECLARE_EVENT_CLASS(regmap_bulk,
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TP_PROTO(struct regmap *map, unsigned int reg,
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const void *val, int val_len),
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TP_ARGS(map, reg, val, val_len),
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TP_STRUCT__entry(
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__string(name, regmap_name(map))
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__field(unsigned int, reg)
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__dynamic_array(char, buf, val_len)
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__field(int, val_len)
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),
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TP_fast_assign(
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__assign_str(name);
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__entry->reg = reg;
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__entry->val_len = val_len;
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memcpy(__get_dynamic_array(buf), val, val_len);
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),
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TP_printk("%s reg=%x val=%s", __get_str(name), __entry->reg,
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__print_hex(__get_dynamic_array(buf), __entry->val_len))
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);
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DEFINE_EVENT(regmap_bulk, regmap_bulk_write,
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TP_PROTO(struct regmap *map, unsigned int reg,
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const void *val, int val_len),
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TP_ARGS(map, reg, val, val_len)
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);
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DEFINE_EVENT(regmap_bulk, regmap_bulk_read,
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TP_PROTO(struct regmap *map, unsigned int reg,
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const void *val, int val_len),
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TP_ARGS(map, reg, val, val_len)
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);
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DECLARE_EVENT_CLASS(regmap_block,
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TP_PROTO(struct regmap *map, unsigned int reg, int count),
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TP_ARGS(map, reg, count),
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TP_STRUCT__entry(
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__string( name, regmap_name(map) )
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__field( unsigned int, reg )
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__field( int, count )
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),
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TP_fast_assign(
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__assign_str(name);
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__entry->reg = reg;
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__entry->count = count;
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),
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TP_printk("%s reg=%x count=%d", __get_str(name), __entry->reg, __entry->count)
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);
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DEFINE_EVENT(regmap_block, regmap_hw_read_start,
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TP_PROTO(struct regmap *map, unsigned int reg, int count),
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TP_ARGS(map, reg, count)
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);
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DEFINE_EVENT(regmap_block, regmap_hw_read_done,
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TP_PROTO(struct regmap *map, unsigned int reg, int count),
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TP_ARGS(map, reg, count)
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);
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DEFINE_EVENT(regmap_block, regmap_hw_write_start,
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TP_PROTO(struct regmap *map, unsigned int reg, int count),
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TP_ARGS(map, reg, count)
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);
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DEFINE_EVENT(regmap_block, regmap_hw_write_done,
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TP_PROTO(struct regmap *map, unsigned int reg, int count),
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TP_ARGS(map, reg, count)
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);
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TRACE_EVENT(regcache_sync,
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TP_PROTO(struct regmap *map, const char *type,
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const char *status),
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TP_ARGS(map, type, status),
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TP_STRUCT__entry(
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__string( name, regmap_name(map) )
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__string( status, status )
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__string( type, type )
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),
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TP_fast_assign(
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__assign_str(name);
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__assign_str(status);
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__assign_str(type);
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),
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TP_printk("%s type=%s status=%s", __get_str(name),
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__get_str(type), __get_str(status))
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);
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DECLARE_EVENT_CLASS(regmap_bool,
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TP_PROTO(struct regmap *map, bool flag),
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TP_ARGS(map, flag),
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TP_STRUCT__entry(
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__string( name, regmap_name(map) )
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__field( int, flag )
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),
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TP_fast_assign(
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__assign_str(name);
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__entry->flag = flag;
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),
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TP_printk("%s flag=%d", __get_str(name), __entry->flag)
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);
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DEFINE_EVENT(regmap_bool, regmap_cache_only,
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TP_PROTO(struct regmap *map, bool flag),
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TP_ARGS(map, flag)
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);
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DEFINE_EVENT(regmap_bool, regmap_cache_bypass,
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TP_PROTO(struct regmap *map, bool flag),
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TP_ARGS(map, flag)
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);
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DECLARE_EVENT_CLASS(regmap_async,
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TP_PROTO(struct regmap *map),
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TP_ARGS(map),
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TP_STRUCT__entry(
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__string( name, regmap_name(map) )
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),
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TP_fast_assign(
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__assign_str(name);
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),
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TP_printk("%s", __get_str(name))
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);
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DEFINE_EVENT(regmap_block, regmap_async_write_start,
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TP_PROTO(struct regmap *map, unsigned int reg, int count),
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TP_ARGS(map, reg, count)
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);
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DEFINE_EVENT(regmap_async, regmap_async_io_complete,
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TP_PROTO(struct regmap *map),
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TP_ARGS(map)
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);
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DEFINE_EVENT(regmap_async, regmap_async_complete_start,
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TP_PROTO(struct regmap *map),
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TP_ARGS(map)
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);
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DEFINE_EVENT(regmap_async, regmap_async_complete_done,
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TP_PROTO(struct regmap *map),
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TP_ARGS(map)
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);
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TRACE_EVENT(regcache_drop_region,
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TP_PROTO(struct regmap *map, unsigned int from,
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unsigned int to),
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TP_ARGS(map, from, to),
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TP_STRUCT__entry(
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__string( name, regmap_name(map) )
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__field( unsigned int, from )
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__field( unsigned int, to )
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),
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TP_fast_assign(
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__assign_str(name);
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__entry->from = from;
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__entry->to = to;
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),
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TP_printk("%s %u-%u", __get_str(name), __entry->from, __entry->to)
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);
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#endif /* _TRACE_REGMAP_H */
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#undef TRACE_INCLUDE_PATH
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#define TRACE_INCLUDE_PATH .
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#undef TRACE_INCLUDE_FILE
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#define TRACE_INCLUDE_FILE trace
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/* This part must be outside protection */
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#include <trace/define_trace.h>
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