Re: __bad_udelay in 2.2.18pre15

[Benjamin Herrenschmidt]

>Well, at first, I wanted to implement it the same way on PPC. However, it
>dies on all occurences where udelay is called with a non-constant expression.
>
>I spotted this case in a few PPC specific stuffs (fixable), but also in
>the sys_nanosleep code, and in the de4x5 driver.

Hrm... looks like I missed the story about the __builtin_constant_p(). Is
this a gcc-specific built-in feature ?

Ben.

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