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x86/apic: Fix silent & fatal merge conflict in __generic_processor_info() 

Fix up the silent merge conflict between commit c291b01515 in x86/urgent
and commit f7c28833c2 in x86/apic which both remove num_processors++
from the original location and then add it at two different locations. As a
result num_processors is incremented twice which can cut the number of
available cpus in half.

Remove the one which is added by commit c291b01515.

In hindsight I should have merged x86/urgent into x86/apic _before_ adding
the nodeid bits, but in hindsight we are always smarter.

Reported-and-tested-by: Borislav Petkov <bp@alien8.de>
Reported-by: Mike Galbraith <umgwanakikbuti@gmail.com>
Fixes: 1e1b37273c ("Merge branch 'x86/urgent' into x86/apic")
Link: https://lkml.kernel.org/r/alpine.DEB.2.20.1609261350090.5483@nanos
Cc: Dou Liyang <douly.fnst@cn.fujitsu.com>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
This commit is contained in:
Thomas Gleixner 2016-09-26 15:48:33 -04:00
parent 1e1b37273c
commit eb6296dec1
1 changed files with 0 additions and 2 deletions
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2
arch/x86/kernel/apic/apic.c
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@ -2171,8 +2171,6 @@ int __generic_processor_info(int apicid, int version, bool enabled)
return -ENOSPC;
}
num_processors++;
/*
* Validate version
*/