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authorMauro Carvalho Chehab <mchehab+huawei@kernel.org>2020-09-28 13:52:34 +0300
committerMauro Carvalho Chehab <mchehab+huawei@kernel.org>2020-10-15 08:49:36 +0300
commitdbe8ba00e5adc7573b8a91855f28a383c9728991 (patch)
treed1cb026761a4b2237e69bb76dffc65d2c9a6176f /scripts
parente3ad05fe6e6ff645aa91e9a555231ff53470daba (diff)
downloadlinux-dbe8ba00e5adc7573b8a91855f28a383c9728991.tar.xz
scripts: kernel-doc: fix troubles with line counts
There's currently a bug with the way kernel-doc script counts line numbers that can be seen with: $ ./scripts/kernel-doc -rst -enable-lineno include/linux/math64.h >all && ./scripts/kernel-doc -rst -internal -enable-lineno include/linux/math64.h >int && diff -U0 int all --- int 2020-09-28 12:58:08.927486808 +0200 +++ all 2020-09-28 12:58:08.905486845 +0200 @@ -1 +1 @@ -#define LINENO 27 +#define LINENO 26 @@ -3 +3 @@ -#define LINENO 16 +#define LINENO 15 @@ -9 +9 @@ -#define LINENO 17 +#define LINENO 16 ... This is happening with perl version 5.30.3, but I'm not so sure if this is a perl bug, or if this is due to something else. In any case, fixing it is easy. Basically, when "-internal" parameter is used, the process_export_file() function opens the handle "IN". This makes the line number to be incremented, as the handler for the main open is also "IN". Fix the problem by using a different handler for the main open(). While here, add a missing close for it. Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org>
Diffstat (limited to 'scripts')
-rwxr-xr-xscripts/kernel-doc7
1 files changed, 4 insertions, 3 deletions
diff --git a/scripts/kernel-doc b/scripts/kernel-doc
index d9783c98f33b..bdd2ebb4ac41 100755
--- a/scripts/kernel-doc
+++ b/scripts/kernel-doc
@@ -2268,7 +2268,7 @@ sub process_file($) {
$file = map_filename($orig_file);
- if (!open(IN,"<$file")) {
+ if (!open(IN_FILE,"<$file")) {
print STDERR "Error: Cannot open file $file\n";
++$errors;
return;
@@ -2277,9 +2277,9 @@ sub process_file($) {
$. = 1;
$section_counter = 0;
- while (<IN>) {
+ while (<IN_FILE>) {
while (s/\\\s*$//) {
- $_ .= <IN>;
+ $_ .= <IN_FILE>;
}
# Replace tabs by spaces
while ($_ =~ s/\t+/' ' x (length($&) * 8 - length($`) % 8)/e) {};
@@ -2311,6 +2311,7 @@ sub process_file($) {
print STDERR "${file}:1: warning: no structured comments found\n";
}
}
+ close IN_FILE;
}