[PATCH] print negative numbers correctly via vsprintf in arch/ppc64/boot/prom.c

[Andreas Schwab]

Olaf Hering <olh at suse.de> writes:

> @@ -367,9 +384,9 @@ static char * number(char * str, long nu
>  	c = (type & ZEROPAD) ? '0' : ' ';
>  	sign = 0;
>  	if (type & SIGN) {
> -		if (num < 0) {
> +		if ((signed long long)num < 0) {
>  			sign = '-';
> -			num = -num;
> +			num = - (signed long long)num;

The cast is still not needed.  In 2's complement representation the
negation of a signed number and an unsigned number are the same operation.

Andreas.

-- 
Andreas Schwab, SuSE Labs, schwab at suse.de
SuSE Linux Products GmbH, Maxfeldstraße 5, 90409 Nürnberg, Germany
Key fingerprint = 58CA 54C7 6D53 942B 1756  01D3 44D5 214B 8276 4ED5
"And now for something completely different."