linux-kernel - Re: [PATCH 2/3] kconfig: refactor conf_set_all_new

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Date: Wed, 5 Jun 2024 22:25:45 +0200
From: Nicolas Schier <nicolas@...sle.eu>
To: Masahiro Yamada <masahiroy@...nel.org>
Cc: linux-kbuild@...r.kernel.org, linux-kernel@...r.kernel.org
Subject: Re: [PATCH 2/3] kconfig: refactor conf_set_all_new_symbols() to
 reduce indentation level

On Sun, Jun 02, 2024 at 09:54:15PM +0900 Masahiro Yamada wrote:
> The outer switch statement can be avoided by continue'ing earlier the
> loop when the symbol type is neither S_BOOLEAN nor S_TRISTATE.
> 
> Remove it to reduce the indentation level by one. In addition, avoid
> the repetition of sym->def[S_DEF_USER].tri.
> 
> No functional change intended.
> 
> Signed-off-by: Masahiro Yamada <masahiroy@...nel.org>
> ---
> 
>  scripts/kconfig/conf.c | 61 +++++++++++++++++++++---------------------
>  1 file changed, 30 insertions(+), 31 deletions(-)
> 
> diff --git a/scripts/kconfig/conf.c b/scripts/kconfig/conf.c
> index 9a20e9e9bdad..cf8193fc00fc 100644
> --- a/scripts/kconfig/conf.c
> +++ b/scripts/kconfig/conf.c
> @@ -218,43 +218,42 @@ static bool conf_set_all_new_symbols(enum conf_def_mode mode)
>  	}
>  
>  	for_all_symbols(sym) {
> -		if (sym_has_value(sym) || sym->flags & SYMBOL_VALID)
> +		tristate val;
> +
> +		if (sym_has_value(sym) || sym->flags & SYMBOL_VALID ||
> +		    (sym->type != S_BOOLEAN && sym->type != S_TRISTATE))
>  			continue;
> -		switch (sym_get_type(sym)) {
> -		case S_BOOLEAN:
> -		case S_TRISTATE:
> -			has_changed = true;
> -			switch (mode) {
> -			case def_yes:
> -				sym->def[S_DEF_USER].tri = yes;
> -				break;
> -			case def_mod:
> -				sym->def[S_DEF_USER].tri = mod;
> -				break;
> -			case def_no:
> -				sym->def[S_DEF_USER].tri = no;
> -				break;
> -			case def_random:
> -				sym->def[S_DEF_USER].tri = no;
> -				cnt = rand() % 100;
> -				if (sym->type == S_TRISTATE) {
> -					if (cnt < pty)
> -						sym->def[S_DEF_USER].tri = yes;
> -					else if (cnt < pty + ptm)
> -						sym->def[S_DEF_USER].tri = mod;
> -				} else if (cnt < pby)
> -					sym->def[S_DEF_USER].tri = yes;
> -				break;
> -			default:
> -				continue;
> +
> +		has_changed = true;
> +		switch (mode) {
> +		case def_yes:
> +			val = yes;
> +			break;
> +		case def_mod:
> +			val = mod;
> +			break;
> +		case def_no:
> +			val = no;
> +			break;
> +		case def_random:
> +			val = no;
> +			cnt = rand() % 100;
> +			if (sym->type == S_TRISTATE) {
> +				if (cnt < pty)
> +					val = yes;
> +				else if (cnt < pty + ptm)
> +					val = mod;
> +			} else if (cnt < pby) {
> +				val = yes;
>  			}
> -			if (!(sym_is_choice(sym) && mode == def_random))
> -				sym->flags |= SYMBOL_DEF_USER;
>  			break;
>  		default:
> -			break;
> +			continue;
>  		}
> +		sym->def[S_DEF_USER].tri = val;
>  
> +		if (!(sym_is_choice(sym) && mode == def_random))
> +			sym->flags |= SYMBOL_DEF_USER;
>  	}
>  
>  	sym_clear_all_valid();
> -- 
> 2.40.1
> 
> 

Reviewed-by: Nicolas Schier <nicolas@...sle.eu>



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