On Tue, Feb 18, 2014 at 03:27:33PM +0000, Marc Zyngier wrote:
> Compiling with THP enabled leads to the following warning:
>
> arch/arm/kvm/mmu.c: In function ‘unmap_range’:
> arch/arm/kvm/mmu.c:177:39: warning: ‘pte’ may be used uninitialized in this
> function [-Wmaybe-uninitialized]
> if (kvm_pmd_huge(*pmd) || page_empty(pte)) {
> ^
> Code inspection reveals that these two cases are mutually exclusive,
> so GCC is a bit overzealous here. Silence it anyway by initializing
> pte to NULL and testing it later on.
>
> Signed-off-by: Marc Zyngier <[email protected]>
Acked-by: Christoffer Dall <[email protected]>
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