f9808b7fd4
On UP i386, when APIC is disabled # CONFIG_X86_UP_APIC is not set # CONFIG_PCI_IOAPIC is not set code looking at apicdrivers never has any effect but it still gets compiled in. In particular, this causes build failures with kvm, but it generally bloats the kernel unnecessarily. Fix by defining both __apicdrivers and __apicdrivers_end to be NULL when CONFIG_X86_LOCAL_APIC is unset: I verified that as the result any loop scanning __apicdrivers gets optimized out by the compiler. Warning: a .config with apic disabled doesn't seem to boot for me (even without this patch). Still verifying why, meanwhile this patch is compile-tested only. Signed-off-by: Michael S. Tsirkin <mst@redhat.com> Reported-by: Randy Dunlap <rdunlap@xenotime.net> Acked-by: Randy Dunlap <rdunlap@xenotime.net> Acked-by: H. Peter Anvin <hpa@linux.intel.com> Signed-off-by: Marcelo Tosatti <mtosatti@redhat.com> |
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