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Mercier" , Maxime Ripard , Sumit Semwal , Andrew Davis Cc: Arnd Bergmann , Nicholas Piggin , "Christophe Leroy (CS GROUP)" , linuxppc-dev@lists.ozlabs.org, linux-kernel@vger.kernel.org Subject: [PATCH 2/2] powerpc: export memory encryption helper functions Date: Tue, 26 May 2026 12:20:38 +0200 Message-Id: <20260526102113.2594501-2-arnd@kernel.org> X-Mailer: git-send-email 2.39.5 In-Reply-To: <20260526102113.2594501-1-arnd@kernel.org> References: <20260526102113.2594501-1-arnd@kernel.org> X-Mailing-List: linuxppc-dev@lists.ozlabs.org List-Id: List-Help: List-Owner: List-Post: List-Archive: , List-Subscribe: , , List-Unsubscribe: Precedence: list MIME-Version: 1.0 Content-Transfer-Encoding: 8bit From: Arnd Bergmann The set_memory_encrypted/set_memory_decrypted functions are exported on x86 and arm64 but not on powerpc, which leads to a new build failure because they are now used in a loadable module: ERROR: modpost: "set_memory_encrypted" [drivers/dma-buf/heaps/system_heap.ko] undefined! ERROR: modpost: "set_memory_decrypted" [drivers/dma-buf/heaps/system_heap.ko] undefined! Export these the same way we do on the other architectures. Fixes: fd55edff8a0a ("dma-buf: heaps: system: Turn the heap into a module") Signed-off-by: Arnd Bergmann --- arch/powerpc/platforms/pseries/svm.c | 3 +++ 1 file changed, 3 insertions(+) diff --git a/arch/powerpc/platforms/pseries/svm.c b/arch/powerpc/platforms/pseries/svm.c index 384c9dc1899a..ab8f8c722741 100644 --- a/arch/powerpc/platforms/pseries/svm.c +++ b/arch/powerpc/platforms/pseries/svm.c @@ -6,6 +6,7 @@ * Author: Anshuman Khandual */ +#include #include #include #include @@ -50,6 +51,7 @@ int set_memory_encrypted(unsigned long addr, int numpages) return 0; } +EXPORT_SYMBOL_GPL(set_memory_encrypted); int set_memory_decrypted(unsigned long addr, int numpages) { @@ -63,6 +65,7 @@ int set_memory_decrypted(unsigned long addr, int numpages) return 0; } +EXPORT_SYMBOL_GPL(set_memory_decrypted); /* There's one dispatch log per CPU. */ #define NR_DTL_PAGE (DISPATCH_LOG_BYTES * CONFIG_NR_CPUS / PAGE_SIZE) -- 2.39.5