Re: [PATCH] checkpatch: Add for_each tests to indentation and brace tests

From: Andy Whitcroft
Date: Mon Jul 14 2014 - 04:13:58 EST


On Sat, Jul 12, 2014 at 10:33:54PM -0700, Joe Perches wrote:
> All the various for_each loop macros were not tested for
> trailing brace on the following lines and for bad indentation.
>
> Add them.
>
> Reported-by: Greg KH <gregkh@xxxxxxxxxxxxxxxxxxx>
> Signed-off-by: Joe Perches <joe@xxxxxxxxxxx>
> ---
> On Sat, 2014-07-12 at 16:08 -0700, Greg KH wrote:
> > The following function:
> >
> > $ cat foo.c
> >
> > static int foo_init(void)
> > {
> >
> > list_for_each_entry(foo, &foo, list)
> > {
> > do_something_foo(foo);
> > }
> >
> > return 0;
> > }
> >
> > Will not be caught by checkpatch:
> >
> > $ ./scripts/checkpatch.pl --file foo.c
> > total: 0 errors, 0 warnings, 11 lines checked
> >
> > foo.c has no obvious style problems and is ready for submission.
>
> scripts/checkpatch.pl | 4 ++--
> 1 file changed, 2 insertions(+), 2 deletions(-)
>
> diff --git a/scripts/checkpatch.pl b/scripts/checkpatch.pl
> index d5ac001..5efbf50 100755
> --- a/scripts/checkpatch.pl
> +++ b/scripts/checkpatch.pl
> @@ -2698,7 +2698,7 @@ sub process {
>
> # if/while/etc brace do not go on next line, unless defining a do while loop,
> # or if that brace on the next line is for something else
> - if ($line =~ /(.*)\b((?:if|while|for|switch)\s*\(|do\b|else\b)/ && $line !~ /^.\s*\#/) {
> + if ($line =~ /(.*)\b((?:if|while|for|switch|(?:[a-z_]+|)for_each[a-z_]+)\s*\(|do\b|else\b)/ && $line !~ /^.\s*\#/) {

They way you end this first addition with |) converts it the (?:[a-z_]*)
doesn't it? Were you intending to do (?:[a-z_]+_|) ?

> my $pre_ctx = "$1$2";
>
> my ($level, @ctx) = ctx_statement_level($linenr, $realcnt, 0);
> @@ -2744,7 +2744,7 @@ sub process {
> }
>
> # Check relative indent for conditionals and blocks.
> - if ($line =~ /\b(?:(?:if|while|for)\s*\(|do\b)/ && $line !~ /^.\s*#/ && $line !~ /\}\s*while\s*/) {
> + if ($line =~ /\b(?:(?:if|while|for|(?:[a-z_]+|)for_each[a-z_]+)\s*\(|do\b)/ && $line !~ /^.\s*#/ && $line !~ /\}\s*while\s*/) {
> ($stat, $cond, $line_nr_next, $remain_next, $off_next) =
> ctx_statement_block($linenr, $realcnt, 0)
> if (!defined $stat);

With the above clarified it all seems sensible.

Acked-by: Andy Whitcroft <apw@xxxxxxxxxxxxx>

-apw
--
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@xxxxxxxxxxxxxxx
More majordomo info at http://vger.kernel.org/majordomo-info.html
Please read the FAQ at http://www.tux.org/lkml/