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[v2,22/23] x86: sme_populate_pgd() use pte_offset_kernel()

Message ID 497d7777-736e-85f2-c37-aa6bcf155e4@google.com (mailing list archive)
State Handled Elsewhere
Headers show
Series arch: allow pte_offset_map[_lock]() to fail | expand

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conchuod/fixes_present success Fixes tag not required for -next series
conchuod/maintainers_pattern success MAINTAINERS pattern errors before the patch: 6 and now 6
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conchuod/kdoc success Errors and warnings before: 0 this patch: 0
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conchuod/module_param success Was 0 now: 0
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conchuod/build_rv32_defconfig success Build OK
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conchuod/header_inline success No static functions without inline keyword in header files
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conchuod/verify_fixes success No Fixes tag
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Commit Message

Hugh Dickins June 8, 2023, 7:36 p.m. UTC
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(-)
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Patch

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));
 }