linux-kernel - Re: [PATCH 4/5] tty: srmcons: switch need

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Message-ID: <abd0deda-cec1-d089-e2e-67dcb780ff83@linux.intel.com>
Date:   Tue, 28 Nov 2023 15:25:43 +0200 (EET)
From:   Ilpo Järvinen <ilpo.jarvinen@...ux.intel.com>
To:     "Jiri Slaby (SUSE)" <jirislaby@...nel.org>
cc:     gregkh@...uxfoundation.org, linux-serial@...r.kernel.org,
        linux-kernel@...r.kernel.org,
        Richard Henderson <richard.henderson@...aro.org>,
        Ivan Kokshaysky <ink@...assic.park.msu.ru>,
        Matt Turner <mattst88@...il.com>, linux-alpha@...r.kernel.org
Subject: Re: [PATCH 4/5] tty: srmcons: switch need_cr to bool

On Mon, 27 Nov 2023, Jiri Slaby (SUSE) wrote:

> 'need_cr' is a flag, so type it properly to be a 'bool'. Move the
> declaration into the loop too. That ensures the variable is initialized
> properly even if the code was moved somehow.
> 
> Signed-off-by: Jiri Slaby (SUSE) <jirislaby@...nel.org>
> Reviewed-by: Richard Henderson <richard.henderson@...aro.org>
> Cc: Ivan Kokshaysky <ink@...assic.park.msu.ru>
> Cc: Matt Turner <mattst88@...il.com>
> Cc: linux-alpha@...r.kernel.org
> ---
>  arch/alpha/kernel/srmcons.c | 7 +++----
>  1 file changed, 3 insertions(+), 4 deletions(-)
> 
> diff --git a/arch/alpha/kernel/srmcons.c b/arch/alpha/kernel/srmcons.c
> index 32bc098de7da..c6b821afbfd3 100644
> --- a/arch/alpha/kernel/srmcons.c
> +++ b/arch/alpha/kernel/srmcons.c
> @@ -94,17 +94,16 @@ srmcons_do_write(struct tty_port *port, const char *buf, int count)
>  	static char str_cr[1] = "\r";
>  	size_t c;
>  	srmcons_result result;
> -	int need_cr;
>  
>  	while (count > 0) {
> -		need_cr = 0;
> +		bool need_cr = false;
>  		/* 
>  		 * Break it up into reasonable size chunks to allow a chance
>  		 * for input to get in
>  		 */
>  		for (c = 0; c < min_t(size_t, 128U, count) && !need_cr; c++)
>  			if (buf[c] == '\n')
> -				need_cr = 1;
> +				need_cr = true;
>  		
>  		while (c > 0) {
>  			result.as_long = callback_puts(0, buf, c);
> @@ -122,7 +121,7 @@ srmcons_do_write(struct tty_port *port, const char *buf, int count)
>  		while (need_cr) {
>  			result.as_long = callback_puts(0, str_cr, 1);
>  			if (result.bits.c > 0)
> -				need_cr = 0;
> +				need_cr = false;
>  		}
>  	}
>  }
> 

Reviewed-by: Ilpo Järvinen <ilpo.jarvinen@...ux.intel.com>

-- 
 i.