perf tools: Use kmod_path__parse in is_kernel_module

Replacing the current parsing code with kmod_path__parse function call.
Signed-off-by: Jiri Olsa <jolsa@kernel.org>
Acked-by: Namhyung Kim <namhyung@kernel.org>
Cc: Adrian Hunter <adrian.hunter@intel.com>
Cc: Corey Ashford <cjashfor@linux.vnet.ibm.com>
Cc: David Ahern <dsahern@gmail.com>
Cc: Frederic Weisbecker <fweisbec@gmail.com>
Cc: Paul Mackerras <paulus@samba.org>
Cc: Peter Zijlstra <a.p.zijlstra@chello.nl>
Cc: Stephane Eranian <eranian@google.com>
Link: http://lkml.kernel.org/n/tip-r9mpbbgkp39wp1cdmv13ddq0@git.kernel.orgSigned-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>

tools/perf/util/dso.c

@@ -178,19 +178,15 @@ bool is_kmodule_extension(const char *ext)
 
 bool is_kernel_module(const char *pathname, bool *compressed)
 {
-	const char *ext = strrchr(pathname, '.');
+	struct kmod_path m;
 
-	if (ext == NULL)
-		return false;
+	if (kmod_path__parse(&m, pathname))
+		return NULL;
 
-	if (is_supported_compression(ext + 1)) {
 	if (compressed)
-			*compressed = true;
-		ext -= 3;
-	} else if (compressed)
-		*compressed = false;
+		*compressed = m.comp;
 
-	return is_kmodule_extension(ext + 1);
+	return m.kmod;
 }
 
 bool decompress_to_file(const char *ext, const char *filename, int output_fd)