On Fri, Apr 06, 2007 at 05:53:25PM -0700, Randy Dunlap wrote:
> From: Jan Engelhardt <[EMAIL PROTECTED]>
> 
> Unfortunately, kernel-doc has problems with a struct field like this:
>       uint8_t databuf[NAND_MAX_PAGESIZE + NAND_MAX_OOBSIZE];
> 
> simply due to the spaces around the "+" sign, so drop all spaces inside
> [...] so that parsing is done correctly (in some sense).
> 
> Warning(linux-2.6.20-git15/include/linux/mtd/nand.h:304): No description 
> found for parameter 'NAND_MAX_OOBSIZE]'
> 
> This needs to sit in -mm for awhile to see if it has any adverse effects.
> 
> And yes, this is just a hack until kernel-doc learns to do better
> parsing.
> 
> Signed-off-by: Jan Engelhardt <[EMAIL PROTECTED]>
> Signed-off-by: Randy Dunlap <[EMAIL PROTECTED]>
> ---
>  scripts/kernel-doc |    5 +++++
>  1 file changed, 5 insertions(+)
> 
> --- linux-2.6.21-rc6.orig/scripts/kernel-doc
> +++ linux-2.6.21-rc6/scripts/kernel-doc
> @@ -1452,6 +1452,11 @@ sub create_parameterlist($$$) {
>           $arg =~ s/\s*:\s*/:/g;
>           $arg =~ s/\s*\[/\[/g;
>  
> +         # no spaces inside [array size expression];
> +         # messes up split/pop/shift/unshift below;
> +         while ($arg =~ s/\[(.*)\s+(.*)\]/[$1$2]/) {
> +         }
> +
>           my @args = split('\s*,\s*', $arg);
>           if ($args[0] =~ m/\*/) {
>               $args[0] =~ s/(\*+)\s*/ $1/;
> -

In a different approach here's a patch that handles the special case of
composite arithmetic expressions in array size initializers. With it,
prior to pushing the split strings on the @first_arg array, I split the
keywords before the array name as before and then keep the array name
along with the subscript expression as a single whole element which gets
pushed last. In this manner, kernel-doc produces correct output without
removing whitespaces which makes the array subscripts unreadable in the docs.

Signed-off-by: Borislav Petkov <[EMAIL PROTECTED]>

--- 21-rc6/scripts/kernel-doc.orig      2007-04-07 16:48:51.000000000 +0200
+++ 21-rc6/scripts/kernel-doc   2007-04-07 16:51:17.000000000 +0200
@@ -1456,7 +1456,16 @@ sub create_parameterlist($$$) {
            if ($args[0] =~ m/\*/) {
                $args[0] =~ s/(\*+)\s*/ $1/;
            }
-           my @first_arg = split('\s+', shift @args);
+
+           my @first_arg;
+           if ($args[0] =~ /^(.*\s+)(.*?\[.*\].*)$/) {
+                   shift @args;
+                   push(@first_arg, split('\s+', $1));
+                   push(@first_arg, $2);
+           } else {
+                   @first_arg = split('\s+', shift @args);
+           }
+
            unshift(@args, pop @first_arg);
            $type = join " ", @first_arg;
 

-- 
Regards/Gruß,
    Boris.
-
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