Re: [PATCH v3] checkpatch: Check for space after "else" keyword

[Joe Perches]

On Mon, 2018-08-06 at 10:55 +0200, Michal Zylowski wrote:
> Current checkpatch implementation permits notation like:
> } else{
> in kernel code.
> It looks like oversight and inconsistency in checkpatch rules (e.g.
> instruction like 'do' is tested).
> 
> Add regex for checking space after 'else' keyword and trigger error if
> space is not present.
> 
> Signed-off-by: Michal Zylowski <michal.zylowski@xxxxxxxxx>

Acked-by: Joe Perches <joe@xxxxxxxxxxx>

> ---
>  scripts/checkpatch.pl | 4 ++--
>  1 file changed, 2 insertions(+), 2 deletions(-)
> 
> diff --git a/scripts/checkpatch.pl b/scripts/checkpatch.pl
> index 447857f..f7e135a 100755
> --- a/scripts/checkpatch.pl
> +++ b/scripts/checkpatch.pl
> @@ -4483,11 +4483,11 @@ sub process {
>  
>  #need space before brace following if, while, etc
>  		if (($line =~ /\(.*\)\{/ && $line !~ /\($Type\)\{/) ||
> -		    $line =~ /do\{/) {
> +		    $line =~ /\b(?:else|do)\{/) {
>  			if (ERROR("SPACING",
>  				  "space required before the open brace '{'\n" . $herecurr) &&
>  			    $fix) {
> -				$fixed[$fixlinenr] =~ s/^(\+.*(?:do|\)))\{/$1 {/;
> +				$fixed[$fixlinenr] =~ s/^(\+.*(?:do|else|\)))\{/$1 {/;
>  			}
>  		}
>