Subject: Re: [PATCH] coccinelle: merge two rules from flex_alloc.cocci

From: Denton Liu <[email-masked]>
Date: Tue, 12 Nov 2019 09:59:26 -0800

Hi Markus,

Thanks for the contribution.

I see that you've sent many Coccinelle patches to the mailing list. It
might be better to send them all together as a single threaded patchset
so that reviewers will have an easier time finding all of them.

On Tue, Nov 12, 2019 at 04:34:34PM +0100, Markus Elfring wrote:
> From: Markus Elfring <[email-masked]>
> Date: Tue, 12 Nov 2019 16:30:14 +0100
> 
> This script contained two transformation rules for the semantic patch language
> which used duplicate code.
> Thus combine these rules by using a SmPL disjunction for the replacement
> of two identifiers.
> 
> Signed-off-by: Markus Elfring <[email-masked]>
> ---
>  contrib/coccinelle/flex_alloc.cocci | 25 +++++++++++++------------
>  1 file changed, 13 insertions(+), 12 deletions(-)
> 
> diff --git a/contrib/coccinelle/flex_alloc.cocci b/contrib/coccinelle/flex_alloc.cocci
> index e9f7f6d861..1b4fa8f801 100644
> --- a/contrib/coccinelle/flex_alloc.cocci
> +++ b/contrib/coccinelle/flex_alloc.cocci
> @@ -1,13 +1,14 @@
> -@@
> +@adjustment@

None of our other cocci scripts have rulenames so I would drop the
rulename here. It also doesn't really help since its name is so generic.

I would also echo this for the other patches you've sent.

>  expression str;
> -identifier x, flexname;
> -@@
> -- FLEX_ALLOC_MEM(x, flexname, str, strlen(str));
> -+ FLEX_ALLOC_STR(x, flexname, str);
> -
> -@@
> -expression str;
> -identifier x, ptrname;
> -@@
> -- FLEXPTR_ALLOC_MEM(x, ptrname, str, strlen(str));
> -+ FLEXPTR_ALLOC_STR(x, ptrname, str);
> +identifier x, name;
> +@@
> +(
> +-FLEX_ALLOC_MEM
> ++FLEX_ALLOC_STR
> +|
> +-FLEXPTR_ALLOC_MEM
> ++FLEXPTR_ALLOC_STR
> +)
> +               (x, name, str
> +-                           , strlen(str)
> +               );

Small nitpick but to be inline with how the rest of our cocci scripts
are written, I'd write this as

	  (x, name, str
	- , strlen(str)
	  );

Thanks,

Denton

> --
> 2.24.0