[PATCH v2] checkpatch: Fix checks for Kconfig help text

[PATCH v2] checkpatch: Fix checks for Kconfig help text

[Leo Yan]

If one patch has Kconfig section, the check script variable '$is_start'
will be set by first 'config' line and the variable '$is_end' is to be
set by the second 'config' line. But patches often only has one
'config' line so we have no chance to set '$is_end', as result below
condition is invalid and it skips check for Kconfig description:

	if ($is_start && $is_end && $length < $min_conf_desc_length) {
		......
	}

When script runs to this condition sentence it means the Kconfig
section parsing has been completed, whatever '$is_end' is true
or not. So removes '$is_end' from condition sentence.

Another change is to change '$min_conf_desc_length' from 4 to 1; so can
pass the check if Kconfig description has at least one line.

Signed-off-by: Leo Yan <leo.yan@linaro.org>
---
 scripts/checkpatch.pl | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/scripts/checkpatch.pl b/scripts/checkpatch.pl
index 3453df9..ba724b0 100755
--- a/scripts/checkpatch.pl
+++ b/scripts/checkpatch.pl
@@ -51,7 +51,7 @@ my $configuration_file = ".checkpatch.conf";
 my $max_line_length = 80;
 my $ignore_perl_version = 0;
 my $minimum_perl_version = 5.10.0;
-my $min_conf_desc_length = 4;
+my $min_conf_desc_length = 1;
 my $spelling_file = "$D/spelling.txt";
 my $codespell = 0;
 my $codespellfile = "/usr/share/codespell/dictionary.txt";
@@ -2796,7 +2796,7 @@ sub process {
 				}
 				$length++;
 			}
-			if ($is_start && $is_end && $length < $min_conf_desc_length) {
+			if ($is_start && $length < $min_conf_desc_length) {
 				WARN("CONFIG_DESCRIPTION",
 				     "please write a paragraph that describes the config symbol fully\n" . $herecurr);
 			}
-- 
2.7.4

Re: [PATCH v2] checkpatch: Fix checks for Kconfig help text

[Joe Perches]

On Fri, 2017-11-10 at 14:42 +0800, Leo Yan wrote:
> If one patch has Kconfig section, the check script variable '$is_start'
> will be set by first 'config' line and the variable '$is_end' is to be
> set by the second 'config' line. But patches often only has one
> 'config' line so we have no chance to set '$is_end', as result below
> condition is invalid and it skips check for Kconfig description:
> 
> 	if ($is_start && $is_end && $length < $min_conf_desc_length) {
> 		......
> 	}
> 
> When script runs to this condition sentence it means the Kconfig
> section parsing has been completed, whatever '$is_end' is true
> or not. So removes '$is_end' from condition sentence.
> 
> Another change is to change '$min_conf_desc_length' from 4 to 1; so can
> pass the check if Kconfig description has at least one line.

Hello Leo.

I do not like this.

Separate changes please and that $min_conf_desc_length
change is definitely not a fix.  It's a preference.

> diff --git a/scripts/checkpatch.pl b/scripts/checkpatch.pl
[]
> @@ -51,7 +51,7 @@ my $configuration_file = ".checkpatch.conf";
>  my $max_line_length = 80;
>  my $ignore_perl_version = 0;
>  my $minimum_perl_version = 5.10.0;
> -my $min_conf_desc_length = 4;
> +my $min_conf_desc_length = 1;
>  my $spelling_file = "$D/spelling.txt";
>  my $codespell = 0;
>  my $codespellfile = "/usr/share/codespell/dictionary.txt";
> @@ -2796,7 +2796,7 @@ sub process {
>  				}
>  				$length++;
>  			}
> -			if ($is_start && $is_end && $length < $min_conf_desc_length) {
> +			if ($is_start && $length < $min_conf_desc_length) {
>  				WARN("CONFIG_DESCRIPTION",
>  				     "please write a paragraph that describes the config symbol fully\n" . $herecurr);
>  			}

Re: [PATCH v2] checkpatch: Fix checks for Kconfig help text

[Leo Yan]

On Fri, Nov 10, 2017 at 05:42:27AM -0800, Joe Perches wrote:
> On Fri, 2017-11-10 at 14:42 +0800, Leo Yan wrote:
> > If one patch has Kconfig section, the check script variable '$is_start'
> > will be set by first 'config' line and the variable '$is_end' is to be
> > set by the second 'config' line. But patches often only has one
> > 'config' line so we have no chance to set '$is_end', as result below
> > condition is invalid and it skips check for Kconfig description:
> > 
> > 	if ($is_start && $is_end && $length < $min_conf_desc_length) {
> > 		......
> > 	}
> > 
> > When script runs to this condition sentence it means the Kconfig
> > section parsing has been completed, whatever '$is_end' is true
> > or not. So removes '$is_end' from condition sentence.
> > 
> > Another change is to change '$min_conf_desc_length' from 4 to 1; so can
> > pass the check if Kconfig description has at least one line.
> 
> Hello Leo.
> 
> I do not like this.
> 
> Separate changes please and that $min_conf_desc_length
> change is definitely not a fix.  It's a preference.

Thank you for suggestion, Joe. Will send new patches soon.

Thanks,
Leo Yan

> > diff --git a/scripts/checkpatch.pl b/scripts/checkpatch.pl
> []
> > @@ -51,7 +51,7 @@ my $configuration_file = ".checkpatch.conf";
> >  my $max_line_length = 80;
> >  my $ignore_perl_version = 0;
> >  my $minimum_perl_version = 5.10.0;
> > -my $min_conf_desc_length = 4;
> > +my $min_conf_desc_length = 1;
> >  my $spelling_file = "$D/spelling.txt";
> >  my $codespell = 0;
> >  my $codespellfile = "/usr/share/codespell/dictionary.txt";
> > @@ -2796,7 +2796,7 @@ sub process {
> >  				}
> >  				$length++;
> >  			}
> > -			if ($is_start && $is_end && $length < $min_conf_desc_length) {
> > +			if ($is_start && $length < $min_conf_desc_length) {
> >  				WARN("CONFIG_DESCRIPTION",
> >  				     "please write a paragraph that describes the config symbol fully\n" . $herecurr);
> >  			}