perf config: Use pr_warning()

warning() is going away, consolidating error reporting.

Cc: Adrian Hunter <adrian.hunter@intel.com>
Cc: David Ahern <dsahern@gmail.com>
Cc: Jiri Olsa <jolsa@kernel.org>
Cc: Namhyung Kim <namhyung@kernel.org>
Cc: Wang Nan <wangnan0@huawei.com>
Link: http://lkml.kernel.org/n/tip-5r3636cwl4z1varo90mervai@git.kernel.org
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
diff --git a/tools/perf/util/config.c b/tools/perf/util/config.c
index 8d724f0..1498f38 100644
--- a/tools/perf/util/config.c
+++ b/tools/perf/util/config.c
@@ -657,8 +657,7 @@
 
 	user_config = strdup(mkpath("%s/.perfconfig", home));
 	if (user_config == NULL) {
-		warning("Not enough memory to process %s/.perfconfig, "
-			"ignoring it.", home);
+		pr_warning("Not enough memory to process %s/.perfconfig, ignoring it.", home);
 		goto out;
 	}
 
@@ -671,8 +670,7 @@
 	ret = 0;
 
 	if (st.st_uid && (st.st_uid != geteuid())) {
-		warning("File %s not owned by current user or root, "
-			"ignoring it.", user_config);
+		pr_warning("File %s not owned by current user or root, ignoring it.", user_config);
 		goto out_free;
 	}