--- /dev/null
+From 94a5d8790e79ab78f499d2d9f1ff2cab63849d9f Mon Sep 17 00:00:00 2001
+From: Arnd Bergmann <arnd@arndb.de>
+Date: Tue, 5 Jun 2018 13:50:07 +0200
+Subject: arm64: cpu_errata: include required headers
+
+From: Arnd Bergmann <arnd@arndb.de>
+
+commit 94a5d8790e79ab78f499d2d9f1ff2cab63849d9f upstream.
+
+Without including psci.h and arm-smccc.h, we now get a build failure in
+some configurations:
+
+arch/arm64/kernel/cpu_errata.c: In function 'arm64_update_smccc_conduit':
+arch/arm64/kernel/cpu_errata.c:278:10: error: 'psci_ops' undeclared (first use in this function); did you mean 'sysfs_ops'?
+
+arch/arm64/kernel/cpu_errata.c: In function 'arm64_set_ssbd_mitigation':
+arch/arm64/kernel/cpu_errata.c:311:3: error: implicit declaration of function 'arm_smccc_1_1_hvc' [-Werror=implicit-function-declaration]
+ arm_smccc_1_1_hvc(ARM_SMCCC_ARCH_WORKAROUND_2, state, NULL);
+
+Signed-off-by: Arnd Bergmann <arnd@arndb.de>
+Signed-off-by: Catalin Marinas <catalin.marinas@arm.com>
+Cc: Jisheng Zhang <Jisheng.Zhang@synaptics.com>
+Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
+
+---
+ arch/arm64/kernel/cpu_errata.c | 2 ++
+ 1 file changed, 2 insertions(+)
+
+--- a/arch/arm64/kernel/cpu_errata.c
++++ b/arch/arm64/kernel/cpu_errata.c
+@@ -16,6 +16,8 @@
+ * along with this program. If not, see <http://www.gnu.org/licenses/>.
+ */
+
++#include <linux/arm-smccc.h>
++#include <linux/psci.h>
+ #include <linux/types.h>
+ #include <asm/cpu.h>
+ #include <asm/cputype.h>