linux-kernel - Re: [PATCH] mfd: Use IS_ENABLED(CONFIG_FOO) instead of checking FOO || FOO

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Date:	Mon, 25 Apr 2016 17:19:44 +0100
From:	Lee Jones <lee.jones@...aro.org>
To:	Javier Martinez Canillas <javier@....samsung.com>
Cc:	linux-kernel@...r.kernel.org, patches@...nsource.wolfsonmicro.com
Subject: Re: [PATCH] mfd: Use IS_ENABLED(CONFIG_FOO) instead of checking FOO
 || FOO_MODULE

On Wed, 20 Apr 2016, Javier Martinez Canillas wrote:

> The IS_ENABLED() macro checks if a Kconfig symbol has been enabled either
> built-in or as a module, use that macro instead of open coding the same.
> 
> Signed-off-by: Javier Martinez Canillas <javier@....samsung.com>
> 
> ---

Applied, thanks.

>  drivers/mfd/dm355evm_msp.c | 8 ++++----
>  drivers/mfd/wm8400-core.c  | 6 +++---
>  2 files changed, 7 insertions(+), 7 deletions(-)
> 
> diff --git a/drivers/mfd/dm355evm_msp.c b/drivers/mfd/dm355evm_msp.c
> index ec4438ed2faf..04c25c4a8ff4 100644
> --- a/drivers/mfd/dm355evm_msp.c
> +++ b/drivers/mfd/dm355evm_msp.c
> @@ -33,25 +33,25 @@
>   * This driver was tested with firmware revision A4.
>   */
>  
> -#if defined(CONFIG_INPUT_DM355EVM) || defined(CONFIG_INPUT_DM355EVM_MODULE)
> +#if IS_ENABLED(CONFIG_INPUT_DM355EVM)
>  #define msp_has_keyboard()	true
>  #else
>  #define msp_has_keyboard()	false
>  #endif
>  
> -#if defined(CONFIG_LEDS_GPIO) || defined(CONFIG_LEDS_GPIO_MODULE)
> +#if IS_ENABLED(CONFIG_LEDS_GPIO)
>  #define msp_has_leds()		true
>  #else
>  #define msp_has_leds()		false
>  #endif
>  
> -#if defined(CONFIG_RTC_DRV_DM355EVM) || defined(CONFIG_RTC_DRV_DM355EVM_MODULE)
> +#if IS_ENABLED(CONFIG_RTC_DRV_DM355EVM)
>  #define msp_has_rtc()		true
>  #else
>  #define msp_has_rtc()		false
>  #endif
>  
> -#if defined(CONFIG_VIDEO_TVP514X) || defined(CONFIG_VIDEO_TVP514X_MODULE)
> +#if IS_ENABLED(CONFIG_VIDEO_TVP514X)
>  #define msp_has_tvp()		true
>  #else
>  #define msp_has_tvp()		false
> diff --git a/drivers/mfd/wm8400-core.c b/drivers/mfd/wm8400-core.c
> index 3bd44a45c378..8f9cbc0fb37a 100644
> --- a/drivers/mfd/wm8400-core.c
> +++ b/drivers/mfd/wm8400-core.c
> @@ -156,7 +156,7 @@ void wm8400_reset_codec_reg_cache(struct wm8400 *wm8400)
>  }
>  EXPORT_SYMBOL_GPL(wm8400_reset_codec_reg_cache);
>  
> -#if defined(CONFIG_I2C) || defined(CONFIG_I2C_MODULE)
> +#if IS_ENABLED(CONFIG_I2C)
>  static int wm8400_i2c_probe(struct i2c_client *i2c,
>  			    const struct i2c_device_id *id)
>  {
> @@ -205,7 +205,7 @@ static int __init wm8400_module_init(void)
>  {
>  	int ret = -ENODEV;
>  
> -#if defined(CONFIG_I2C) || defined(CONFIG_I2C_MODULE)
> +#if IS_ENABLED(CONFIG_I2C)
>  	ret = i2c_add_driver(&wm8400_i2c_driver);
>  	if (ret != 0)
>  		pr_err("Failed to register I2C driver: %d\n", ret);
> @@ -217,7 +217,7 @@ subsys_initcall(wm8400_module_init);
>  
>  static void __exit wm8400_module_exit(void)
>  {
> -#if defined(CONFIG_I2C) || defined(CONFIG_I2C_MODULE)
> +#if IS_ENABLED(CONFIG_I2C)
>  	i2c_del_driver(&wm8400_i2c_driver);
>  #endif
>  }

-- 
Lee Jones
Linaro STMicroelectronics Landing Team Lead
Linaro.org │ Open source software for ARM SoCs
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