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[172.10.233.147]) by smtp.gmail.com with ESMTPSA id l64-20020a0dc943000000b0055aad7d3f34sm3766659ywd.142.2023.05.09.22.09.51 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Tue, 09 May 2023 22:09:54 -0700 (PDT) Date: Tue, 9 May 2023 22:09:50 -0700 (PDT) From: Hugh Dickins X-X-Sender: hugh@ripple.attlocal.net To: Andrew Morton cc: Mike Kravetz , Mike Rapoport , "Kirill A. Shutemov" , Matthew Wilcox , David Hildenbrand , Suren Baghdasaryan , Qi Zheng , Russell King , Catalin Marinas , Will Deacon , Geert Uytterhoeven , Greg Ungerer , Michal Simek , Thomas Bogendoerfer , Helge Deller , John David Anglin , "Aneesh Kumar K.V" , Michael Ellerman , Alexandre Ghiti , Palmer Dabbelt , Heiko Carstens , Christian Borntraeger , Claudio Imbrenda , John Paul Adrian Glaubitz , "David S. Miller" , Chris Zankel , Max Filippov , x86@kernel.org, linux-arm-kernel@lists.infradead.org, linux-ia64@vger.kernel.org, linux-m68k@lists.linux-m68k.org, linux-mips@vger.kernel.org, linux-parisc@vger.kernel.org, linuxppc-dev@lists.ozlabs.org, linux-riscv@lists.infradead.org, linux-s390@vger.kernel.org, linux-sh@vger.kernel.org, sparclinux@vger.kernel.org, linux-kernel@vger.kernel.org, linux-mm@kvack.org Subject: [PATCH 22/23] x86: sme_populate_pgd() use pte_offset_kernel() In-Reply-To: <77a5d8c-406b-7068-4f17-23b7ac53bc83@google.com> Message-ID: <6d75e7f-2266-1dda-8a70-c52c27f44da7@google.com> References: <77a5d8c-406b-7068-4f17-23b7ac53bc83@google.com> MIME-Version: 1.0 X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20230509_220955_735458_1C2BC325 X-CRM114-Status: GOOD ( 14.18 ) X-BeenThere: linux-riscv@lists.infradead.org X-Mailman-Version: 2.1.34 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Sender: "linux-riscv" Errors-To: linux-riscv-bounces+linux-riscv=archiver.kernel.org@lists.infradead.org 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 --- 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)); }