[PATCH] firmware: stratix10-svc: build only on 64-bit ARM

From: Dinh Nguyen
Date: Thu Apr 01 2021 - 14:00:54 EST


From: Krzysztof Kozlowski <krzysztof.kozlowski@xxxxxxxxxxxxx>

The Stratix10 service layer and RCU drivers are useful only on
Stratix10, so on ARMv8. Compile testing the RCU driver on 32-bit ARM
fails:

drivers/firmware/stratix10-rsu.c: In function 'rsu_status_callback':
include/linux/compiler_types.h:320:38: error: call to '__compiletime_assert_179'
declared with attribute error: FIELD_GET: type of reg too small for mask
_compiletime_assert(condition, msg, __compiletime_assert_, __COUNTER__)
...
drivers/firmware/stratix10-rsu.c:96:26: note: in expansion of macro 'FIELD_GET'
priv->status.version = FIELD_GET(RSU_VERSION_MASK,

Signed-off-by: Krzysztof Kozlowski <krzysztof.kozlowski@xxxxxxxxxxxxx>
Reported-by: kernel test robot <lkp@xxxxxxxxx>
Acked-by: Richard Gong <richard.gong@xxxxxxxxxxxxxxx>
Signed-off-by: Dinh Nguyen <dinguyen@xxxxxxxxxx>
---
drivers/firmware/Kconfig | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/firmware/Kconfig b/drivers/firmware/Kconfig
index 6a4e882e448d..08bd4d01fb04 100644
--- a/drivers/firmware/Kconfig
+++ b/drivers/firmware/Kconfig
@@ -206,7 +206,7 @@ config FW_CFG_SYSFS_CMDLINE

config INTEL_STRATIX10_SERVICE
tristate "Intel Stratix10 Service Layer"
- depends on ARCH_INTEL_SOCFPGA && HAVE_ARM_SMCCC
+ depends on ARCH_INTEL_SOCFPGA && ARM64 && HAVE_ARM_SMCCC
default n
help
Intel Stratix10 service layer runs at privileged exception level,
--
2.25.1