linux-kernel - Re: [PATCH -next] evm: Use IS_ENABLED to initialize .enabled

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Date:   Tue, 7 Jun 2022 08:06:37 +0200
From:   Ahmad Fatoum <a.fatoum@...gutronix.de>
To:     Xiu Jianfeng <xiujianfeng@...wei.com>, zohar@...ux.ibm.com,
        dmitry.kasatkin@...il.com, jmorris@...ei.org, serge@...lyn.com
Cc:     linux-integrity@...r.kernel.org,
        linux-security-module@...r.kernel.org, linux-kernel@...r.kernel.org
Subject: Re: [PATCH -next] evm: Use IS_ENABLED to initialize .enabled

On 06.06.22 12:10, Xiu Jianfeng wrote:
> Use IS_ENABLED(CONFIG_XXX) instead of #ifdef/#endif statements to
> initialize .enabled, minor simplicity improvement.
> 
> Signed-off-by: Xiu Jianfeng <xiujianfeng@...wei.com>

Reviewed-by: Ahmad Fatoum <a.fatoum@...gutronix.de>

> ---
>  security/integrity/evm/evm_main.c | 52 ++++++++++++++-----------------
>  1 file changed, 23 insertions(+), 29 deletions(-)
> 
> diff --git a/security/integrity/evm/evm_main.c b/security/integrity/evm/evm_main.c
> index cc88f02c7562..397fea5b3fa6 100644
> --- a/security/integrity/evm/evm_main.c
> +++ b/security/integrity/evm/evm_main.c
> @@ -36,42 +36,36 @@ static const char * const integrity_status_msg[] = {
>  int evm_hmac_attrs;
>  
>  static struct xattr_list evm_config_default_xattrnames[] = {
> -	{.name = XATTR_NAME_SELINUX,
> -#ifdef CONFIG_SECURITY_SELINUX
> -	 .enabled = true
> -#endif
> +	{
> +	 .name = XATTR_NAME_SELINUX,
> +	 .enabled = IS_ENABLED(CONFIG_SECURITY_SELINUX)
>  	},
> -	{.name = XATTR_NAME_SMACK,
> -#ifdef CONFIG_SECURITY_SMACK
> -	 .enabled = true
> -#endif
> +	{
> +	 .name = XATTR_NAME_SMACK,
> +	 .enabled = IS_ENABLED(CONFIG_SECURITY_SMACK)
>  	},
> -	{.name = XATTR_NAME_SMACKEXEC,
> -#ifdef CONFIG_EVM_EXTRA_SMACK_XATTRS
> -	 .enabled = true
> -#endif
> +	{
> +	 .name = XATTR_NAME_SMACKEXEC,
> +	 .enabled = IS_ENABLED(CONFIG_EVM_EXTRA_SMACK_XATTRS)
>  	},
> -	{.name = XATTR_NAME_SMACKTRANSMUTE,
> -#ifdef CONFIG_EVM_EXTRA_SMACK_XATTRS
> -	 .enabled = true
> -#endif
> +	{
> +	 .name = XATTR_NAME_SMACKTRANSMUTE,
> +	 .enabled = IS_ENABLED(CONFIG_EVM_EXTRA_SMACK_XATTRS)
>  	},
> -	{.name = XATTR_NAME_SMACKMMAP,
> -#ifdef CONFIG_EVM_EXTRA_SMACK_XATTRS
> -	 .enabled = true
> -#endif
> +	{
> +	 .name = XATTR_NAME_SMACKMMAP,
> +	 .enabled = IS_ENABLED(CONFIG_EVM_EXTRA_SMACK_XATTRS)
>  	},
> -	{.name = XATTR_NAME_APPARMOR,
> -#ifdef CONFIG_SECURITY_APPARMOR
> -	 .enabled = true
> -#endif
> +	{
> +	 .name = XATTR_NAME_APPARMOR,
> +	 .enabled = IS_ENABLED(CONFIG_SECURITY_APPARMOR)
>  	},
> -	{.name = XATTR_NAME_IMA,
> -#ifdef CONFIG_IMA_APPRAISE
> -	 .enabled = true
> -#endif
> +	{
> +	 .name = XATTR_NAME_IMA,
> +	 .enabled = IS_ENABLED(CONFIG_IMA_APPRAISE)
>  	},
> -	{.name = XATTR_NAME_CAPS,
> +	{
> +	 .name = XATTR_NAME_CAPS,
>  	 .enabled = true
>  	},
>  };


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