On Tuesday 29 April 2014 10:40:55 Grant Likely wrote:
On Fri, 25 Apr 2014 21:20:09 +0800, Hanjun Guo hanjun.guo@linaro.org wrote:
ACPI core requires a cpu.h, add a dummy one here temporarily. This file will be updated in the future to add definitions for arch_(un)register_cpu which are required for ACPI based physical CPU hotplug when these standards have be ratified by the ASWG.
Signed-off-by: Graeme Gregory graeme.gregory@linaro.org Signed-off-by: Hanjun Guo hanjun.guo@linaro.org
arch/arm64/include/asm/cpu.h | 11 +++++++++++ 1 file changed, 11 insertions(+) create mode 100644 arch/arm64/include/asm/cpu.h
I think we're trying to get away from these empty header stubs by putting them in asm-generic. Arnd, care to comment here?
I started a reply yesterday on a similar note, but didn't send it, as the comment explains that it will be needed for the arch_(un)register_cpu() declarations later, which seems reasonable.
On second thought, we could probably just put the declarations into include/linux/cpu.h, since the prototypes are architecture independent, they just happen to be implemented by only a subset of the architectures.
Arnd