linux-kernel - [PATCH] scripts/kernel-doc: Do not track section counter across processed files

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Message-ID: <20241008082905.4005524-1-wenst@chromium.org>
Date: Tue,  8 Oct 2024 16:29:04 +0800
From: Chen-Yu Tsai <wenst@...omium.org>
To: Jonathan Corbet <corbet@....net>
Cc: Chen-Yu Tsai <wenst@...omium.org>,
	linux-doc@...r.kernel.org,
	linux-kernel@...r.kernel.org
Subject: [PATCH] scripts/kernel-doc: Do not track section counter across processed files

The section counter tracks how many sections of kernel-doc were added.
The only real use of the counter value is to check if anything was
actually supposed to be output and give a warning is nothing is
available.

The current logic of remembering the initial value and then resetting
the value then when processing each file means that if a file has the
same number of sections as the previously processed one, a warning is
incorrectly given.

Fixes: 1da177e4c3f4 ("Linux-2.6.12-rc2")
Signed-off-by: Chen-Yu Tsai <wenst@...omium.org>
---
Found this while improving and checking the kernel docs for the
regulator core.

 scripts/kernel-doc | 4 +---
 1 file changed, 1 insertion(+), 3 deletions(-)

diff --git a/scripts/kernel-doc b/scripts/kernel-doc
index 2791f8195203..c608820f0bf5 100755
--- a/scripts/kernel-doc
+++ b/scripts/kernel-doc
@@ -2322,7 +2322,6 @@ sub process_inline($$) {
 
 sub process_file($) {
     my $file;
-    my $initial_section_counter = $section_counter;
     my ($orig_file) = @_;
 
     $file = map_filename($orig_file);
@@ -2360,8 +2359,7 @@ sub process_file($) {
     }
 
     # Make sure we got something interesting.
-    if ($initial_section_counter == $section_counter && $
-        output_mode ne "none") {
+    if (!$section_counter && $output_mode ne "none") {
         if ($output_selection == OUTPUT_INCLUDE) {
             emit_warning("${file}:1", "'$_' not found\n")
                 for keys %function_table;
-- 
2.47.0.rc0.187.ge670bccf7e-goog