From: Al Viro <viro@zeniv.linux.org.uk>
Date: Sat, 15 Feb 2020 16:29:04 +0000 (-0500)
Subject: x86 kvm page table walks: switch to explicit __get_user()
X-Git-Url: http://git.maquefel.me/?a=commitdiff_plain;h=a4814443993c7c8686036bb8ca0df6abc499d63f;p=linux.git

x86 kvm page table walks: switch to explicit __get_user()

Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
---

diff --git a/arch/x86/kvm/mmu/paging_tmpl.h b/arch/x86/kvm/mmu/paging_tmpl.h
index 4e1ef04736634..5bea4cfe8a157 100644
--- a/arch/x86/kvm/mmu/paging_tmpl.h
+++ b/arch/x86/kvm/mmu/paging_tmpl.h
@@ -400,7 +400,7 @@ retry_walk:
 			goto error;
 
 		ptep_user = (pt_element_t __user *)((void *)host_addr + offset);
-		if (unlikely(__copy_from_user(&pte, ptep_user, sizeof(pte))))
+		if (unlikely(__get_user(pte, ptep_user)))
 			goto error;
 		walker->ptep_user[walker->level - 1] = ptep_user;