linux-kernel - Re: [PATCH v5 02/14] software node: introduce PROPERTY_ENTRY_ARRAY_XXX

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Date:   Tue, 15 Oct 2019 15:02:49 +0300
From:   Andy Shevchenko <andriy.shevchenko@...ux.intel.com>
To:     Dmitry Torokhov <dmitry.torokhov@...il.com>
Cc:     "Rafael J. Wysocki" <rafael@...nel.org>,
        Heikki Krogerus <heikki.krogerus@...ux.intel.com>,
        Mika Westerberg <mika.westerberg@...ux.intel.com>,
        Linus Walleij <linus.walleij@...aro.org>,
        Ard Biesheuvel <ard.biesheuvel@...aro.org>,
        linux-acpi@...r.kernel.org, linux-kernel@...r.kernel.org,
        platform-driver-x86@...r.kernel.org
Subject: Re: [PATCH v5 02/14] software node: introduce
 PROPERTY_ENTRY_ARRAY_XXX_LEN()

On Fri, Oct 11, 2019 at 04:07:09PM -0700, Dmitry Torokhov wrote:
> Sometimes we want to initialize property entry array from a regular
> pointer, when we can't determine length automatically via ARRAY_SIZE.
> Let's introduce PROPERTY_ENTRY_ARRAY_XXX_LEN macros that take explicit
> "len" argument.

Reviewed-by: Andy Shevchenko <andriy.shevchenko@...ux.intel.com>

> Signed-off-by: Dmitry Torokhov <dmitry.torokhov@...il.com>
> ---
>  include/linux/property.h | 45 +++++++++++++++++++++++++---------------
>  1 file changed, 28 insertions(+), 17 deletions(-)
> 
> diff --git a/include/linux/property.h b/include/linux/property.h
> index 44c1704f7163..f89b930ca4b7 100644
> --- a/include/linux/property.h
> +++ b/include/linux/property.h
> @@ -256,33 +256,44 @@ struct property_entry {
>   * and structs.
>   */
>  
> -#define PROPERTY_ENTRY_INTEGER_ARRAY(_name_, _type_, _Type_, _val_)	\
> +#define PROPERTY_ENTRY_ARRAY_LEN(_name_, _type_, _Type_, _val_, _len_)	\
>  (struct property_entry) {						\
>  	.name = _name_,							\
> -	.length = ARRAY_SIZE(_val_) * sizeof(_type_),			\
> +	.length = (_len_) * sizeof(_type_),				\
>  	.is_array = true,						\
>  	.type = DEV_PROP_##_Type_,					\
>  	{ .pointer = { ._type_##_data = _val_ } },			\
>  }
>  
> -#define PROPERTY_ENTRY_U8_ARRAY(_name_, _val_)			\
> -	PROPERTY_ENTRY_INTEGER_ARRAY(_name_, u8, U8, _val_)
> -#define PROPERTY_ENTRY_U16_ARRAY(_name_, _val_)			\
> -	PROPERTY_ENTRY_INTEGER_ARRAY(_name_, u16, U16, _val_)
> -#define PROPERTY_ENTRY_U32_ARRAY(_name_, _val_)			\
> -	PROPERTY_ENTRY_INTEGER_ARRAY(_name_, u32, U32, _val_)
> -#define PROPERTY_ENTRY_U64_ARRAY(_name_, _val_)			\
> -	PROPERTY_ENTRY_INTEGER_ARRAY(_name_, u64, U64, _val_)
> +#define PROPERTY_ENTRY_U8_ARRAY_LEN(_name_, _val_, _len_)		\
> +	PROPERTY_ENTRY_ARRAY_LEN(_name_, u8, U8, _val_, _len_)
> +#define PROPERTY_ENTRY_U16_ARRAY_LEN(_name_, _val_, _len_)		\
> +	PROPERTY_ENTRY_ARRAY_LEN(_name_, u16, U16, _val_, _len_)
> +#define PROPERTY_ENTRY_U32_ARRAY_LEN(_name_, _val_, _len_)		\
> +	PROPERTY_ENTRY_ARRAY_LEN(_name_, u32, U32, _val_, _len_)
> +#define PROPERTY_ENTRY_U64_ARRAY_LEN(_name_, _val_, _len_)		\
> +	PROPERTY_ENTRY_ARRAY_LEN(_name_, u64, U64, _val_, _len_)
>  
> -#define PROPERTY_ENTRY_STRING_ARRAY(_name_, _val_)		\
> -(struct property_entry) {					\
> -	.name = _name_,						\
> -	.length = ARRAY_SIZE(_val_) * sizeof(const char *),	\
> -	.is_array = true,					\
> -	.type = DEV_PROP_STRING,				\
> -	{ .pointer = { .str = _val_ } },			\
> +#define PROPERTY_ENTRY_STRING_ARRAY_LEN(_name_, _val_, _len_)		\
> +(struct property_entry) {						\
> +	.name = _name_,							\
> +	.length = (_len_) * sizeof(const char *),			\
> +	.is_array = true,						\
> +	.type = DEV_PROP_STRING,					\
> +	{ .pointer = { .str = _val_ } },				\
>  }
>  
> +#define PROPERTY_ENTRY_U8_ARRAY(_name_, _val_)				\
> +	PROPERTY_ENTRY_U8_ARRAY_LEN(_name_, _val_, ARRAY_SIZE(_val_))
> +#define PROPERTY_ENTRY_U16_ARRAY(_name_, _val_)				\
> +	PROPERTY_ENTRY_U16_ARRAY_LEN(_name_, _val_, ARRAY_SIZE(_val_))
> +#define PROPERTY_ENTRY_U32_ARRAY(_name_, _val_)				\
> +	PROPERTY_ENTRY_U32_ARRAY_LEN(_name_, _val_, ARRAY_SIZE(_val_))
> +#define PROPERTY_ENTRY_U64_ARRAY(_name_, _val_)				\
> +	PROPERTY_ENTRY_U64_ARRAY_LEN(_name_, _val_, ARRAY_SIZE(_val_))
> +#define PROPERTY_ENTRY_STRING_ARRAY(_name_, _val_)			\
> +	PROPERTY_ENTRY_STRING_ARRAY_LEN(_name_, _val_, ARRAY_SIZE(_val_))
> +
>  #define PROPERTY_ENTRY_INTEGER(_name_, _type_, _Type_, _val_)	\
>  (struct property_entry) {					\
>  	.name = _name_,						\
> -- 
> 2.23.0.700.g56cf767bdb-goog
> 

-- 
With Best Regards,
Andy Shevchenko