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linux/arch/x86/hyperv
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Thomas Gleixner 2d2ccf2493 x86/Hyper-V/hv_apic: Build the Hyper-V APIC conditionally 
The Hyper-V APIC code is built when CONFIG_HYPERV is enabled but the actual
code in that file is guarded with CONFIG_X86_64. There is no point in doing
this. Neither is there a point in having the CONFIG_HYPERV guard in there
because the containing directory is not built when CONFIG_HYPERV=n.

Further for the hv_init_apic() function a stub is provided only for
CONFIG_HYPERV=n, which is pointless as the callsite is not compiled at
all. But for X86_32 the stub is missing and the build fails.

Clean that up:

  - Compile hv_apic.c only when CONFIG_X86_64=y
  - Make the stub for hv_init_apic() available when CONFG_X86_64=n

Fixes: 6b48cb5f83 ("X86/Hyper-V: Enlighten APIC access")
Reported-by: kbuild test robot <lkp@intel.com>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Cc: K. Y. Srinivasan <kys@microsoft.com>
Cc: Michael Kelley <mikelley@microsoft.com>
2018-05-19 21:34:11 +02:00
..
hv_apic.c x86/Hyper-V/hv_apic: Build the Hyper-V APIC conditionally 2018-05-19 21:34:11 +02:00
hv_init.c X86/Hyper-V: Consolidate the allocation of the hypercall input page 2018-05-19 13:23:18 +02:00
Makefile x86/Hyper-V/hv_apic: Build the Hyper-V APIC conditionally 2018-05-19 21:34:11 +02:00
mmu.c X86/Hyper-V: Consolidate the allocation of the hypercall input page 2018-05-19 13:23:18 +02:00