perf report: Switch data file correctly in TUI

[ Upstream commit 43c2b6139b188d8a756130147f7efd5ddf99f88d ]

The 's' key is to switch to a new data file and load the data in the
same window.  The switch_data_file() will show a popup menu to select
which data file user wants and update the 'input_name' global variable.

But in the cmd_report(), it didn't update the data.path using the new
'input_name' and keep usng the old file.  This is fairly an old bug and
I assume people don't use this feature much. :)

Link: https://lore.kernel.org/r/20250211060745.294289-1-namhyung@kernel.org
Closes: https://lore.kernel.org/linux-perf-users/89e678bc-f0af-4929-a8a6-a2666f1294a4@linaro.org
Fixes: f5fc14124c ("perf tools: Add data object to handle perf data file")
Reported-by: James Clark <james.clark@linaro.org>
Signed-off-by: Namhyung Kim <namhyung@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>

tools/perf/builtin-report.c

@@ -1551,12 +1551,12 @@ int cmd_report(int argc, const char **argv)
 			input_name = "perf.data";
 	}
 
+repeat:
 	data.path  = input_name;
 	data.force = symbol_conf.force;
 
 	symbol_conf.skip_empty = report.skip_empty;
 
-repeat:
 	perf_tool__init(&report.tool, ordered_events);
 	report.tool.sample		 = process_sample_event;
 	report.tool.mmap		 = perf_event__process_mmap;