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/drivers/gpu/drm/msm/disp/dpu1/dpu_trace.h b/drivers/gpu/drm/msm/disp/dpu1/dpu_trace.h
index bd92fb2979aa..0fdd41162e4b 100644
--- a/drivers/gpu/drm/msm/disp/dpu1/dpu_trace.h
+++ b/drivers/gpu/drm/msm/disp/dpu1/dpu_trace.h
@@ -113,7 +113,7 @@ TRACE_EVENT(tracing_mark_write,
 	),
 	TP_fast_assign(
 			__entry->pid = pid;
-			__assign_str(trace_name, name);
+			__assign_str(trace_name);
 			__entry->trace_begin = trace_begin;
 	),
 	TP_printk("%s|%d|%s", __entry->trace_begin ? "B" : "E",
@@ -130,7 +130,7 @@ TRACE_EVENT(dpu_trace_counter,
 	),
 	TP_fast_assign(
 			__entry->pid = current->tgid;
-			__assign_str(counter_name, name);
+			__assign_str(counter_name);
 			__entry->value = value;
 	),
 	TP_printk("%d|%s|%d", __entry->pid,
@@ -379,7 +379,7 @@ TRACE_EVENT(dpu_enc_rc,
 		__entry->sw_event = sw_event;
 		__entry->idle_pc_supported = idle_pc_supported;
 		__entry->rc_state = rc_state;
-		__assign_str(stage_str, stage);
+		__assign_str(stage_str);
 	),
 	TP_printk("%s: id:%u, sw_event:%d, idle_pc_supported:%s, rc_state:%d",
 		  __get_str(stage_str), __entry->drm_id, __entry->sw_event,
@@ -401,7 +401,7 @@ TRACE_EVENT(dpu_enc_frame_done_cb_not_busy,
 	TP_fast_assign(
 		__entry->drm_id = drm_id;
 		__entry->event = event;
-		__assign_str(intf_mode_str, intf_mode);
+		__assign_str(intf_mode_str);
 		__entry->intf_idx = intf_idx;
 		__entry->wb_idx = wb_idx;
 	),
@@ -446,7 +446,7 @@ TRACE_EVENT(dpu_enc_trigger_flush,
 	),
 	TP_fast_assign(
 		__entry->drm_id = drm_id;
-		__assign_str(intf_mode_str, intf_mode);
+		__assign_str(intf_mode_str);
 		__entry->intf_idx = intf_idx;
 		__entry->wb_idx = wb_idx;
 		__entry->pending_kickoff_cnt = pending_kickoff_cnt;
@@ -946,7 +946,7 @@ TRACE_EVENT(dpu_core_perf_update_clk,
 		__field(	u64,			clk_rate	)
 	),
 	TP_fast_assign(
-		__assign_str(dev_name, dev->unique);
+		__assign_str(dev_name);
 		__entry->stop_req = stop_req;
 		__entry->clk_rate = clk_rate;
 	),