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

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Date:	Sat, 28 Sep 2013 16:13:29 -0700
From:	"H. Peter Anvin" <hpa@...or.com>
To:	Borislav Petkov <bp@...en8.de>, Ingo Molnar <mingo@...nel.org>
CC:	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

For negative numbers presumably we need to d++ for the minus sign, no?

Borislav Petkov <bp@...en8.de> wrote:
>On Sat, Sep 28, 2013 at 09:58:33PM +0200, Ingo Molnar wrote:
>> 
>> * Borislav Petkov <bp@...en8.de> wrote:
>> 
>> > On Sat, Sep 28, 2013 at 09:49:27PM +0200, Borislav Petkov wrote:
>> > > And yes, that one works too.
>> > 
>> > Btw, just to be thorough, we could handle negative numbers too:
>> > 
>> > int num_digits(int val)
>> > {
>> >         int m = 10;
>> >         int d = 1;
>> > 
>> >         if (val < 0)
>> >                 val = -val;
>> > 
>> >         while (val >= m) {
>> >                 m *= 10;
>> >                 d++;
>> >         }
>> > 
>> >         return d;
>> > }
>> 
>> I like the cell phone version better!
>
>This *is* the cell phone version + negative numbers handling.

-- 
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