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[ Upstream commit0f88130e8a] Normally __swp_entry_to_pte() is never called with a value translating to a valid PTE. The only known exception is pte_swap_tests(), resulting in a WARN splat in Xen PV guests, as __pte_to_swp_entry() did translate the PFN of the valid PTE to a guest local PFN, while __swp_entry_to_pte() doesn't do the opposite translation. Fix that by using __pte() in __swp_entry_to_pte() instead of open coding the native variant of it. For correctness do the similar conversion for __swp_entry_to_pmd(). Fixes:05289402d7("mm/debug_vm_pgtable: add tests validating arch helpers for core MM features") Signed-off-by: Juergen Gross <jgross@suse.com> Signed-off-by: Borislav Petkov (AMD) <bp@alien8.de> Link: https://lore.kernel.org/r/20230306123259.12461-1-jgross@suse.com Signed-off-by: Sasha Levin <sashal@kernel.org>