Re: [PATCH][next] tpm: remove redundant variable len

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On Fri, Jun 16, 2023 at 06:07:30PM +0100, Colin Ian King wrote:
> Variable len is being accumulated but the value is never read. It is
> redundant and can be removed. Cleans up clang scan build warning:
> 
> drivers/char/tpm/eventlog/tpm1.c:276:2: warning: Value stored to 'len' is never read [deadcode.DeadStores]
> 
> Signed-off-by: Colin Ian King <colin.i.king@xxxxxxxxx>

Reviewed-by: Jerry Snitselaar <jsnitsel@xxxxxxxxxx>

> ---
>  drivers/char/tpm/eventlog/tpm1.c | 3 +--
>  1 file changed, 1 insertion(+), 2 deletions(-)
> 
> diff --git a/drivers/char/tpm/eventlog/tpm1.c b/drivers/char/tpm/eventlog/tpm1.c
> index 8aa9057601d6..12ee42a31c71 100644
> --- a/drivers/char/tpm/eventlog/tpm1.c
> +++ b/drivers/char/tpm/eventlog/tpm1.c
> @@ -251,7 +251,6 @@ static int tpm1_binary_bios_measurements_show(struct seq_file *m, void *v)
>  
>  static int tpm1_ascii_bios_measurements_show(struct seq_file *m, void *v)
>  {
> -	int len = 0;
>  	char *eventname;
>  	struct tcpa_event *event = v;
>  	unsigned char *event_entry =
> @@ -273,7 +272,7 @@ static int tpm1_ascii_bios_measurements_show(struct seq_file *m, void *v)
>  	/* 3rd: event type identifier */
>  	seq_printf(m, " %02x", do_endian_conversion(event->event_type));
>  
> -	len += get_event_name(eventname, event, event_entry);
> +	get_event_name(eventname, event, event_entry);
>  
>  	/* 4th: eventname <= max + \'0' delimiter */
>  	seq_printf(m, " %s\n", eventname);
> -- 
> 2.39.2
> 




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