Re: [PATCH 4/6] powerpc: asm/io.h: remove split ioread64/iowrite64 helpers
Michael Ellerman <[email protected]>
| Newsgroups | gmane.linux.ports.ppc.embedded,gmane.linux.kernel.cross-arch,gmane.linux.ports.alpha,gmane.linux.kernel,gmane.linux.ports.mips,gmane.linux.ports.parisc,gmane.linux.ports.sh.devel |
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| Message-ID | <[email protected]> |
Arnd Bergmann <[email protected]> writes: > From: Arnd Bergmann <[email protected]> > > In previous kernels, there were conflicting definitions for what > ioread64_lo_hi() and similar functions were supposed to do on > architectures with native 64-bit MMIO. Based on the actual usage in > drivers, they are in fact expected to be a pair of 32-bit accesses on > all architectures, which makes the powerpc64 definition wrong. > > Remove it and use the generic implementation instead. > > Drivers that want to have split lo/hi or hi/lo accesses on 32-bit > architectures but can use 64-bit accesses where supported should instead > use ioread64()/iowrite64() after including the corresponding header file. > > Signed-off-by: Arnd Bergmann <[email protected]> > --- > arch/powerpc/include/asm/io.h | 48 ----------------------------------- > 1 file changed, 48 deletions(-) Acked-by: Michael Ellerman <[email protected]> (powerpc) cheers