x86/apic/es7000+summit: Always make valid apicid from a cpumask

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In case of invalid parameters cpu_mask_to_apicid_and() might
return apicid value of 0 (on Summit) or a uninitialized value
(on ES7000), although it is supposed to return apicid of cpu-0
at least. Fix the operation to always return a valid apicid.

Signed-off-by: Alexander Gordeev <agordeev@redhat.com>
Cc: Suresh Siddha <suresh.b.siddha@intel.com>
Cc: Yinghai Lu <yinghai@kernel.org>
Link: http://lkml.kernel.org/r/20120614075026.GH3383@dhcp-26-207.brq.redhat.com
Signed-off-by: Ingo Molnar <mingo@kernel.org>

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Alexander Gordeev 2012-06-14 09:50:27 +02:00 • committed by Ingo Molnar

parent 49ad3fd483

commit 214e270b5f

2 changed files with 4 additions and 0 deletions

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arch/x86/kernel/apic/es7000_32.c

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2

arch/x86/kernel/apic/summit_32.c

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