linux-kernel - Re: [PATCH 1/5] net: iucv: Use FIELD_SIZEOF directly instead of reimplementing its function

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Message-Id: <c7c1c701-2146-b8a8-f988-e504ede0bb61@de.ibm.com>
Date:   Wed, 19 Sep 2018 13:21:27 +0200
From:   Christian Borntraeger <borntraeger@...ibm.com>
To:     zhong jiang <zhongjiang@...wei.com>, davem@...emloft.net
Cc:     jhs@...atatu.com, xiyou.wangcong@...il.com, jiri@...nulli.us,
        netdev@...r.kernel.org, linux-kernel@...r.kernel.org,
        Ursula Braun <ubraun@...ux.ibm.com>,
        Julian Wiedmann <jwi@...ux.ibm.com>
Subject: Re: [PATCH 1/5] net: iucv: Use FIELD_SIZEOF directly instead of
 reimplementing its function

Can you please copy Ursula and Julian for iucv related patches?

On 09/19/2018 12:26 PM, zhong jiang wrote:
> FIELD_SIZEOF is defined as a macro to calculate the specified value. Therefore,
> We prefer to use the macro rather than calculating its value.
> 
> Signed-off-by: zhong jiang <zhongjiang@...wei.com>
> ---
>  net/iucv/af_iucv.c | 2 +-
>  1 file changed, 1 insertion(+), 1 deletion(-)
> 
> diff --git a/net/iucv/af_iucv.c b/net/iucv/af_iucv.c
> index e2f16a0..5b68ee9 100644
> --- a/net/iucv/af_iucv.c
> +++ b/net/iucv/af_iucv.c
> @@ -48,7 +48,7 @@
>  static const u8 iprm_shutdown[8] =
>  	{0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x01};
>  
> -#define TRGCLS_SIZE	(sizeof(((struct iucv_message *)0)->class))
> +#define TRGCLS_SIZE	FIELD_SIZEOF(struct iucv_message, class)
>  
>  #define __iucv_sock_wait(sk, condition, timeo, ret)			\
>  do {									\
>