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ca04d396a3
Pull x86 fixes from Thomas Gleixner:
"This set of updates contains:
- Another bugfix for the pathologic vm86 machinery. Clear
thread.vm86 on fork to prevent corrupting the parent state. This
comes along with an update to the vm86 selftest case
- Fix another corner case in the ioapic setup code which causes a
boot crash on some oddball systems
- Fix the fallout from the dma allocation consolidation work, which
leads to a NULL pointer dereference when the allocation code is
called with a NULL device"
* 'x86-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
x86/vm86: Set thread.vm86 to NULL on fork/clone
selftests/x86: Add a fork() to entry_from_vm86 to catch fork bugs
x86/ioapic: Prevent NULL pointer dereference in setup_ioapic_dest()
x86/dma-mapping: Fix arch_dma_alloc_attrs() oops with NULL dev