[PATCH V8 03/10] USB/ppc4xx: Add Synopsys DWC OTG Core InterfaceLayer

Alexander Gordeev lasaine at lvk.cs.msu.su
Mon Feb 14 22:34:19 EST 2011

В Mon, 14 Feb 2011 08:53:21 -0000
"David Laight" <David.Laight at ACULAB.COM> пишет:

> > > Sorry, I don't understand that. I think u32 is always 32bit 
> > > 4byte on all archs. Right?
> > 
> > Yes.
> > 
> > Use an unsigned long if you want to hold a pointer correctly on all
> > arches.
> Although that is true for many systems (and probably all ppc Linux)
> it isn't necessarily true (eg 64 bit Microsoft Windows).
> C99 inttypes.h should define uintptr_t as an unsigned integer
> type that is large enough to hold a (data) pointer.
> I'm not sure if this is defined for the Linux kernel.

I think, the most reasonable option is to use a pointer type to hold
pointer. :)

-------------- next part --------------
A non-text attachment was scrubbed...
Name: signature.asc
Type: application/pgp-signature
Size: 490 bytes
Desc: not available
URL: <http://lists.ozlabs.org/pipermail/linuxppc-dev/attachments/20110214/e8f5453a/attachment.pgp>

More information about the Linuxppc-dev mailing list