[PATCH 22/23] x86: sme_populate_pgd() use pte_offset_kernel()

Hugh Dickins
2023-05-10T05:10:02Z

sme_populate_pgd() is an __init function for sme_encrypt_kernel():
it should use pte_offset_kernel() instead of pte_offset_map(), to avoid
the question of whether a pte_unmap() will be needed to balance.

Signed-off-by: Hugh Dickins <hughd@google.com>
---
arch/x86/mm/mem_encrypt_identity.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/arch/x86/mm/mem_encrypt_identity.c b/arch/x86/mm/mem_encrypt_identity.c
index c6efcf559d88..a1ab542bdfd6 100644
--- a/arch/x86/mm/mem_encrypt_identity.c
+++ b/arch/x86/mm/mem_encrypt_identity.c
@@ -188,7 +188,7 @@ static void __init sme_populate_pgd(struct sme_populate_pgd_data *ppd)
if (pmd_large(*pmd))
return;

- pte = pte_offset_map(pmd, ppd->vaddr);
+ pte = pte_offset_kernel(pmd, ppd->vaddr);
if (pte_none(*pte))
set_pte(pte, __pte(ppd->paddr | ppd->pte_flags));
}
--
2.35.3