Messages in this thread | | | From | Arnd Bergmann <> | Subject | Re: MMIO and gcc re-ordering issue | Date | Thu, 29 May 2008 09:10:06 +0200 |
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On Wednesday 28 May 2008, Benjamin Herrenschmidt wrote: > On Tue, 2008-05-27 at 14:55 -0700, Linus Torvalds wrote: > > > > On Wed, 28 May 2008, Benjamin Herrenschmidt wrote: > > > > > > A problem with __raw_ though is that they -also- don't do byteswap, > > > > Well, that's why there is __readl() and __raw_readl(), no? > > As I replied to somebody else, __readl() is news to me :-) we dont' have > those on powerpc. >
It's not exactly a well-established interface. Only five architectures define these functions, and there is not a single user in the kernel source outside of these architecture's io.h files.
Arnd <><
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