Commit bf61d128 authored by Ingo Molnar's avatar Ingo Molnar

[PATCH] Avoid writing the APIC ID register

A small birdie tells us that in the long run it may not be a good idea
to write the APIC ID register.  It might be read-only in some
hypothetical situation down the road.
parent 13d02fd8
......@@ -248,12 +248,6 @@ int __init verify_local_APIC(void)
*/
reg0 = apic_read(APIC_ID);
Dprintk("Getting ID: %x\n", reg0);
apic_write(APIC_ID, reg0 ^ APIC_ID_MASK);
reg1 = apic_read(APIC_ID);
Dprintk("Getting ID: %x\n", reg1);
apic_write(APIC_ID, reg0);
if (reg1 != (reg0 ^ APIC_ID_MASK))
return 0;
/*
* The next two are just to see if we have sane values.
......
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