linux-kernel - Re: [PATCH] checkpatch: Improve CamelCase test for Page

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Date:	Fri, 22 Feb 2013 17:01:48 -0500
From:	Peter Hurley <peter@...leysoftware.com>
To:	Joe Perches <joe@...ches.com>
Cc:	akpm@...ux-foundation.org, linux-kernel@...r.kernel.org
Subject: Re: [PATCH] checkpatch: Improve CamelCase test for Page

On Fri, 2013-02-22 at 12:59 -0800, Joe Perches wrote:
> Add the ClearPage/SetPage/TestClearPage/TestSetPage
> variants to the not reported Page CamelCase variables.
> 
> Signed-off-by: Joe Perches <joe@...ches.com>
> ---
>  scripts/checkpatch.pl | 2 +-
>  1 file changed, 1 insertion(+), 1 deletion(-)
> 
> diff --git a/scripts/checkpatch.pl b/scripts/checkpatch.pl
> index 747bcd7..8a32306 100755
> --- a/scripts/checkpatch.pl
> +++ b/scripts/checkpatch.pl
> @@ -2930,7 +2930,7 @@ sub process {
>  			my $var = $1;
>  			if ($var !~ /$Constant/ &&
>  			    $var =~ /[A-Z]\w*[a-z]|[a-z]\w*[A-Z]/ &&
> -			    $var !~ /^Page[A-Z]/ &&
> +			    $var !~ /"^(?:Clear|Set|TestClear|TestSet|)Page[A-Z]/ &&
>  			    !defined $camelcase{$var}) {
>  				$camelcase{$var} = 1;
>  				WARN("CAMELCASE",
> 

In a recent patch, checkpatch gave this warning.

WARNING: Avoid CamelCase: <tty->SAK_work>
#35: FILE: drivers/tty/tty_io.c:1475:
+	flush_work(&tty->SAK_work);


'SAK' is the acronym for 'Secure Attention Key'. Identifiers which
relate to SAK handling have the above form; eg.,
  do_SAK()
  SAK_work
  do_SAK_work
  fn_SAK
  vc_SAK
  sysrq_handle_SAK

I didn't bother to mention it before, but since your addressing mm
CamelCase exceptions, perhaps

  xxxx_XXXX
  xx_XXX_xxx
  XXX_xxx

could be exceptions as well?

Regards,
Peter Hurley

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