[PATCH 3.19.y-ckt 074/128] ARM/arm64: KVM: test properly for a PTE's uncachedness

3.19.8-ckt12 -stable review patch. If anyone has any objections, please let me know. -- From: Ard Biesheuvel commit e6fab54423450d699a09ec2b899473a541f61971 upstream. The open coded tests for checking whether a PTE maps a page as uncached use a flawed '(pte_val(xxx) & CONST)

[PATCH 3.19.y-ckt 074/128] ARM/arm64: KVM: test properly for a PTE's uncachedness

3.19.8-ckt12 -stable review patch. If anyone has any objections, please let me know. -- From: Ard Biesheuvel commit e6fab54423450d699a09ec2b899473a541f61971 upstream. The open coded tests for checking whether a PTE maps a page as uncached use a