kernel-doc: unify all EXPORT_SYMBOL scanning to one place

Scan all input files for EXPORT_SYMBOLs along with the explicitly
specified export files before actually parsing anything.

Signed-off-by: Jani Nikula <jani.nikula@intel.com>

diff --git a/scripts/kernel-doc b/scripts/kernel-doc
index 9708a87..932b3f3 100755 (executable)
--- a/scripts/kernel-doc
+++ b/scripts/kernel-doc
@@ -61,10 +61,10 @@ Output format selection (mutually exclusive):
 Output selection (mutually exclusive):
   -export              Only output documentation for symbols that have been
                        exported using EXPORT_SYMBOL() or EXPORT_SYMBOL_GPL()
-                        in the same FILE or any -export-file FILE.
+                        in any input FILE or -export-file FILE.
   -internal            Only output documentation for symbols that have NOT been
                        exported using EXPORT_SYMBOL() or EXPORT_SYMBOL_GPL()
-                        in the same FILE or any -export-file FILE.
+                        in any input FILE or -export-file FILE.
   -function NAME       Only output documentation for the given function(s)
                        or DOC: section title(s). All other functions and DOC:
                        sections are ignored. May be specified multiple times.
@@ -2792,17 +2792,6 @@ sub process_file($) {
        return;
     }
 
-    # two passes for -export and -internal
-    if ($output_selection == OUTPUT_EXPORTED ||
-       $output_selection == OUTPUT_INTERNAL) {
-       while (<IN>) {
-           if (/$export_symbol/o) {
-               $function_table{$2} = 1;
-           }
-       }
-       seek(IN, 0, 0);
-    }
-
     $. = 1;
 
     $section_counter = 0;
@@ -3110,6 +3099,9 @@ if (open(SOURCE_MAP, "<.tmp_filelist.txt")) {
 
 if ($output_selection == OUTPUT_EXPORTED ||
     $output_selection == OUTPUT_INTERNAL) {
+
+    push(@export_file_list, @ARGV);
+
     foreach (@export_file_list) {
        chomp;
        process_export_file($_);