Re: [PATCH, v2 13/13] mm/m68k: fix build warning of unused variable

[Sergei Shtylyov]

Hello.

On 05/29/2013 06:44 PM, Jiang Liu wrote:

> Fix build warning of unused variable:
> arch/m68k/mm/init.c: In function 'mem_init':
> arch/m68k/mm/init.c:151:6: warning: unused variable 'i' [-Wunused-variable]
>
> Signed-off-by: Jiang Liu <jiang.liu@xxxxxxxxxx>
> Cc: Geert Uytterhoeven <geert@xxxxxxxxxxxxxx>
> Cc: Greg Ungerer <gerg@xxxxxxxxxxx>
> Cc: Thadeu Lima de Souza Cascardo <cascardo@xxxxxxxxxxxxxx>
> Cc: linux-m68k@xxxxxxxxxxxxxxxxxxxx
> Cc: linux-kernel@xxxxxxxxxxxxxxx
> ---
>   arch/m68k/mm/init.c | 13 ++++++++-----
>   1 file changed, 8 insertions(+), 5 deletions(-)
>
> diff --git a/arch/m68k/mm/init.c b/arch/m68k/mm/init.c
> index 6e0a938..6b4baa6 100644
> --- a/arch/m68k/mm/init.c
> +++ b/arch/m68k/mm/init.c
> @@ -146,14 +146,11 @@ void __init print_memmap(void)
>   		MLK_ROUNDUP(__bss_start, __bss_stop));
>   }
>   
> -void __init mem_init(void)
> +static inline void init_pointer_tables(void)
>   {
> +#if defined(CONFIG_MMU) && !defined(CONFIG_SUN3) && !defined(CONFIG_COLDFIRE)

   #ifdef's in the function bodies are frowned upon, this should better be:

#if defined(CONFIG_MMU) && !defined(CONFIG_SUN3) && !defined(CONFIG_COLDFIRE)

static inline void init_pointer_tables(void)
{
[...]
}
#else
static inline void init_pointer_tables(void) {}
#endif

>   	int i;
>   
> -	/* this will put all memory onto the freelists */
> -	free_all_bootmem();
> -
> -#if defined(CONFIG_MMU) && !defined(CONFIG_SUN3) && !defined(CONFIG_COLDFIRE)
>   	/* insert pointer tables allocated so far into the tablelist */
>   	init_pointer_table((unsigned long)kernel_pg_dir);
>   	for (i = 0; i < PTRS_PER_PGD; i++) {
> @@ -165,7 +162,13 @@ void __init mem_init(void)
>   	if (zero_pgtable)
>   		init_pointer_table((unsigned long)zero_pgtable);
>   #endif
> +}
>   
> +void __init mem_init(void)
> +{
> +	/* this will put all memory onto the freelists */
> +	free_all_bootmem();
> +	init_pointer_tables();
>   	mem_init_print_info(NULL);
>   	print_memmap();
>   }

WBR, Sergei

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