Messages in this thread |  | | | Date | Tue, 1 Jan 2008 21:26:32 +0000 | | From | Alan Cox <> | | Subject | Re: [PATCH] x86: provide a DMI based port 0x80 I/O delay override. |
> very much care about code size. But it has been stated in this thread
> that most of the _p() API uses in the kernel today are bogus. So
You missed a word "wrongly". It has been "wrongly stated"
I've been going through the ISA cases which are the majority. Generally
speaking they are correct. We have a couple of "interesting" PCI users
who most definitely want udelay() or removal of _p. We have various
chipset cases which want looking at in detail. The ISA drivers however
are both the main user and mostly right.
> ok, "I dont know but it might be slower" is a perfectly fine statement
> instead of your original "it will be slower".
If you use wall clock timings it will be slower.
Alan
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