[Xen-devel] Re: [RFC PATCH 09/33] Add start-of-day setup hooks to subarch

[Jeremy Fitzhardinge <jeremy@xxxxxxxx>]

Arjan van de Ven wrote:
> what is this for? Isn't this 1) undocumented and 2) unclear and 3)
> ugly ? (I'm pretty sure the HAVE_ARCH_* stuff is highly deprecated for
> new things nowadays)
>   
It appears to be completely unnecessary.  Xen doesn't use 
sanitize_e820_map(), but there's no obvious harm in leaving it there 
(and it's init code, so there's no long-term cost).

   J


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