linux-kernel - Re: [PATCH -v1.1] x86, boot: Further compress CPUs bootup message

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Date:	Sat, 28 Sep 2013 21:25:45 +0200
From:	Ingo Molnar <mingo@...nel.org>
To:	Borislav Petkov <bp@...en8.de>
Cc:	hpa@...or.com, linux-kernel@...r.kernel.org,
	huawei.libin@...wei.com, wangyijing@...wei.com,
	fenghua.yu@...el.com, tglx@...utronix.de, guohanjun@...wei.com,
	paul.gortmaker@...driver.com, linux-tip-commits@...r.kernel.org
Subject: Re: [PATCH -v1.1] x86, boot: Further compress CPUs bootup message


* Borislav Petkov <bp@...en8.de> wrote:

> @@ -2,6 +2,10 @@ int num_digits(int val)
>  {
>  	int digits = 0;
>  
> +	/* Handle special case */
> +	if (!val)
> +		return 1;
> +
>  	while (val) {
>  		val /= 10;
>  		digits++;

Hm. I suspect this could then be written as:

int num_digits(int val)
{
	int digits = 0;

	do {
		val /= 10;
		digits++;
	} while (val);

	return digits;
}

No ugly special case! :-)

Thanks,

	Ingo
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