Re: [PATCH] remove untouched code in kfifo_in

[Jiri Kosina]

On Wed, 17 Oct 2012, Wei Yang wrote:

> In kfifo_in marco, one piece of code is arounded by if(0).
> 
> This patch just remove this code.
> ---
>  include/linux/kfifo.h |    4 ----
>  1 files changed, 0 insertions(+), 4 deletions(-)
> 
> diff --git a/include/linux/kfifo.h b/include/linux/kfifo.h
> index 10308c6..e7015bb 100644
> --- a/include/linux/kfifo.h
> +++ b/include/linux/kfifo.h
> @@ -512,10 +512,6 @@ __kfifo_uint_must_check_helper( \
>  	unsigned long __n = (n); \
>  	const size_t __recsize = sizeof(*__tmp->rectype); \
>  	struct __kfifo *__kfifo = &__tmp->kfifo; \
> -	if (0) { \
> -		typeof(__tmp->ptr_const) __dummy __attribute__ ((unused)); \
> -		__dummy = (typeof(__buf))NULL; \
> -	} \
>  	(__recsize) ?\
>  	__kfifo_in_r(__kfifo, __buf, __n, __recsize) : \
>  	__kfifo_in(__kfifo, __buf, __n); \

Frankly, I'd first like to understand what was the rationale for adding it 
at the first place. Adding Stefani and lkml to CC.

-- 
Jiri Kosina
SUSE Labs
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