Re: [RFC patch 0/4] TSC calibration improvements

[Linus Torvalds]

On Sat, 6 Sep 2008, Thomas Gleixner wrote:
>  
> Where is a guarantee, that excpect is not decremented before we break
> out of the loop ? 

Quite the reverse. We have a guarantee that it _is_ decremented.

Adn that guarantee is very much about the C language.

		for (a ; b ; c) {
			..
		}

translates as

		a;
		while (b) {
			..
	continue:
			c;
		}

And this has absolutely _nothing_ to do with any gcc oddity or anything 
else. 

The fact is, the code that Ingo added was totally bogus. The real bug was 
that he did a totally bogus "--expect" in the argument to that last call. 

Because 'c' *will* have been done after the last iteration of the loop.

			Linus
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