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>

1 files changed, 6 insertions, 6 deletions

diff --git a/include/ras/ras_event.h b/include/ras/ras_event.h
index c011ea236e9b..7c47151d5c72 100644
--- a/include/ras/ras_event.h
+++ b/include/ras/ras_event.h
@@ -61,7 +61,7 @@ TRACE_EVENT(extlog_mem_event,
 		else
 			__entry->pa_mask_lsb = ~0;
 		__entry->fru_id = *fru_id;
-		__assign_str(fru_text, fru_text);
+		__assign_str(fru_text);
 		cper_mem_err_pack(mem, &__entry->data);
 	),
 
@@ -131,8 +131,8 @@ TRACE_EVENT(mc_event,
 
 	TP_fast_assign(
 		__entry->error_type		= err_type;
-		__assign_str(msg, error_msg);
-		__assign_str(label, label);
+		__assign_str(msg);
+		__assign_str(label);
 		__entry->error_count		= error_count;
 		__entry->mc_index		= mc_index;
 		__entry->top_layer		= top_layer;
@@ -141,7 +141,7 @@ TRACE_EVENT(mc_event,
 		__entry->address		= address;
 		__entry->grain_bits		= grain_bits;
 		__entry->syndrome		= syndrome;
-		__assign_str(driver_detail, driver_detail);
+		__assign_str(driver_detail);
 	),
 
 	TP_printk("%d %s error%s:%s%s on %s (mc:%d location:%d:%d:%d address:0x%08lx grain:%d syndrome:0x%08lx%s%s)",
@@ -239,7 +239,7 @@ TRACE_EVENT(non_standard_event,
 	TP_fast_assign(
 		memcpy(__entry->sec_type, sec_type, UUID_SIZE);
 		memcpy(__entry->fru_id, fru_id, UUID_SIZE);
-		__assign_str(fru_text, fru_text);
+		__assign_str(fru_text);
 		__entry->sev = sev;
 		__entry->len = len;
 		memcpy(__get_dynamic_array(buf), err, len);
@@ -313,7 +313,7 @@ TRACE_EVENT(aer_event,
 	),
 
 	TP_fast_assign(
-		__assign_str(dev_name, dev_name);
+		__assign_str(dev_name);
 		__entry->status		= status;
 		__entry->severity	= severity;
 		__entry->tlp_header_valid = tlp_header_valid;