Merge tag 'docs-5.9' of git://git.lwn.net/linux

Pull documentation updates from Jonathan Corbet:
 "It's been a busy cycle for documentation - hopefully the busiest for a
  while to come. Changes include:

   - Some new Chinese translations

   - Progress on the battle against double words words and non-HTTPS
     URLs

   - Some block-mq documentation

   - More RST conversions from Mauro. At this point, that task is
     essentially complete, so we shouldn't see this kind of churn again
     for a while. Unless we decide to switch to asciidoc or
     something...:)

   - Lots of typo fixes, warning fixes, and more"

* tag 'docs-5.9' of git://git.lwn.net/linux: (195 commits)
  scripts/kernel-doc: optionally treat warnings as errors
  docs: ia64: correct typo
  mailmap: add entry for <alobakin@marvell.com>
  doc/zh_CN: add cpu-load Chinese version
  Documentation/admin-guide: tainted-kernels: fix spelling mistake
  MAINTAINERS: adjust kprobes.rst entry to new location
  devices.txt: document rfkill allocation
  PCI: correct flag name
  docs: filesystems: vfs: correct flag name
  docs: filesystems: vfs: correct sync_mode flag names
  docs: path-lookup: markup fixes for emphasis
  docs: path-lookup: more markup fixes
  docs: path-lookup: fix HTML entity mojibake
  CREDITS: Replace HTTP links with HTTPS ones
  docs: process: Add an example for creating a fixes tag
  doc/zh_CN: add Chinese translation prefer section
  doc/zh_CN: add clearing-warn-once Chinese version
  doc/zh_CN: add admin-guide index
  doc:it_IT: process: coding-style.rst: Correct __maybe_unused compiler label
  futex: MAINTAINERS: Re-add selftests directory
  ...

2 files changed, 29 insertions, 5 deletions

diff --git a/scripts/kernel-doc b/scripts/kernel-doc
index b4c963f8364e..d1b445665ad6 100755
--- a/scripts/kernel-doc
+++ b/scripts/kernel-doc
@@ -81,6 +81,7 @@ Output selection modifiers:
 Other parameters:
   -v			Verbose output, more warnings and other information.
   -h			Print this help.
+  -Werror		Treat warnings as errors.
 
 EOF
     print $message;
@@ -273,6 +274,7 @@ my $kernelversion;
 my $dohighlight = "";
 
 my $verbose = 0;
+my $Werror = 0;
 my $output_mode = "rst";
 my $output_preformatted = 0;
 my $no_doc_sections = 0;
@@ -319,6 +321,18 @@ if (defined($ENV{'KBUILD_VERBOSE'})) {
 	$verbose = "$ENV{'KBUILD_VERBOSE'}";
 }
 
+if (defined($ENV{'KDOC_WERROR'})) {
+	$Werror = "$ENV{'KDOC_WERROR'}";
+}
+
+if (defined($ENV{'KCFLAGS'})) {
+	my $kcflags = "$ENV{'KCFLAGS'}";
+
+	if ($kcflags =~ /Werror/) {
+		$Werror = 1;
+	}
+}
+
 # Generated docbook code is inserted in a template at a point where
 # docbook v3.1 requires a non-zero sequence of RefEntry's; see:
 # https://www.oasis-open.org/docbook/documentation/reference/html/refentry.html
@@ -433,6 +447,8 @@ while ($ARGV[0] =~ m/^--?(.*)/) {
 	push(@export_file_list, $file);
     } elsif ($cmd eq "v") {
 	$verbose = 1;
+    } elsif ($cmd eq "Werror") {
+	$Werror = 1;
     } elsif (($cmd eq "h") || ($cmd eq "help")) {
 	usage();
     } elsif ($cmd eq 'no-doc-sections') {
@@ -1083,7 +1099,9 @@ sub dump_struct($$) {
 	$members =~ s/\s*__packed\s*/ /gos;
 	$members =~ s/\s*CRYPTO_MINALIGN_ATTR/ /gos;
 	$members =~ s/\s*____cacheline_aligned_in_smp/ /gos;
+
 	# replace DECLARE_BITMAP
+	$members =~ s/__ETHTOOL_DECLARE_LINK_MODE_MASK\s*\(([^\)]+)\)/DECLARE_BITMAP($1, __ETHTOOL_LINK_MODE_MASK_NBITS)/gos;
 	$members =~ s/DECLARE_BITMAP\s*\(([^,)]+),\s*([^,)]+)\)/unsigned long $1\[BITS_TO_LONGS($2)\]/gos;
 	# replace DECLARE_HASHTABLE
 	$members =~ s/DECLARE_HASHTABLE\s*\(([^,)]+),\s*([^,)]+)\)/unsigned long $1\[1 << (($2) - 1)\]/gos;
@@ -1769,6 +1787,11 @@ sub process_proto_function($$) {
 	$prototype =~ s@/\*.*?\*/@@gos;	# strip comments.
 	$prototype =~ s@[\r\n]+@ @gos; # strip newlines/cr's.
 	$prototype =~ s@^\s+@@gos; # strip leading spaces
+
+	 # Handle prototypes for function pointers like:
+	 # int (*pcs_config)(struct foo)
+	$prototype =~ s@^(\S+\s+)\(\s*\*(\S+)\)@$1$2@gos;
+
 	if ($prototype =~ /SYSCALL_DEFINE/) {
 		syscall_munge();
 	}
@@ -2255,4 +2278,9 @@ if ($verbose && $warnings) {
   print STDERR "$warnings warnings\n";
 }
 
-exit($output_mode eq "none" ? 0 : $errors);
+if ($Werror && $warnings) {
+    print STDERR "$warnings warnings as Errors\n";
+    exit($warnings);
+} else {
+    exit($output_mode eq "none" ? 0 : $errors)
+}
diff --git a/scripts/sphinx-pre-install b/scripts/sphinx-pre-install
index c680c3efb176..40fa6923e80a 100755
--- a/scripts/sphinx-pre-install
+++ b/scripts/sphinx-pre-install
@@ -323,10 +323,6 @@ sub check_sphinx()
 		$rec_sphinx_upgrade = 1;
 		return;
 	}
-	if ($cur_version lt $min_pdf_version) {
-		$rec_sphinx_upgrade = 1;
-		return;
-	}
 
 	# On version check mode, just assume Sphinx has all mandatory deps
 	exit (0) if ($version_check);