On Friday 07 December 2007, Paul Mackerras wrote:
> I have re-purposed the ioperm system call for this. The old ioperm
> system call never did anything (except return an ENOSYS error) and in
> fact never could have actually been useful for anything on the PowerPC
> architecture, so nothing ever used it.
Couldn't there be a program that relies on ioperm to return -ENOSYS on
powerpc in order to fall back on some other method of I/O access?
The risk of actually breaking something is certainly low, but I think
you can never be sure here, so why not use a new syscall number?
Arnd <><
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