linux-kernel - Re: [PATCH v7 2/2] tools lib traceevent: Add support for __print

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Date:	Tue, 3 Mar 2015 23:12:38 +0900
From:	Namhyung Kim <namhyung@...nel.org>
To:	Javi Merino <javi.merino@....com>
Cc:	acme@...hat.com, jolsa@...hat.com, rostedt@...dmis.org,
	linux-kernel@...r.kernel.org
Subject: Re: [PATCH v7 2/2] tools lib traceevent: Add support for
 __print_array()

Hi Javi,

On Mon, Mar 02, 2015 at 06:17:42PM +0000, Javi Merino wrote:
> Since 6ea22486ba46 ("tracing: Add array printing helper") trace can
> traces with variable element size arrays.  Add support to parse them.

I just have a nitpick below - otherwise both patches look good, so

Acked-by: Namhyung Kim <namhyung@...nel.org>


[SNIP]
> diff --git a/tools/lib/traceevent/event-parse.h b/tools/lib/traceevent/event-parse.h
> index 7a3873ff9a4f..5ac3e3c00389 100644
> --- a/tools/lib/traceevent/event-parse.h
> +++ b/tools/lib/traceevent/event-parse.h
> @@ -245,6 +245,12 @@ struct print_arg_hex {
>  	struct print_arg	*size;
>  };
>  
> +struct print_arg_int_array {
> +	struct print_arg	*field;
> +	struct print_arg	*size;

I think it'd be better to call this field as 'count' rather than
'size' since it's clearer and consistent with the in-kernel
__print_array() function.

Thanks,
Namhyung


> +	struct print_arg	*el_size;
> +};
> +
>  struct print_arg_dynarray {
>  	struct format_field	*field;
>  	struct print_arg	*index;
> @@ -273,6 +279,7 @@ enum print_arg_type {
>  	PRINT_FLAGS,
>  	PRINT_SYMBOL,
>  	PRINT_HEX,
> +	PRINT_INT_ARRAY,
>  	PRINT_TYPE,
>  	PRINT_STRING,
>  	PRINT_BSTRING,
> @@ -292,6 +299,7 @@ struct print_arg {
>  		struct print_arg_flags		flags;
>  		struct print_arg_symbol		symbol;
>  		struct print_arg_hex		hex;
> +		struct print_arg_int_array	int_array;
>  		struct print_arg_func		func;
>  		struct print_arg_string		string;
>  		struct print_arg_bitmask	bitmask;
> -- 
> 1.9.1
> 
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