[PATCH] smcc: fix sign bit expansion

[Volodymyr Babchuk]

Signed ARM_SMCCC_FAST_CALL value is shifted to 31'st bit. Then, it is expanded
to 64 bit value, which results in 1s in higher 32 bits.

This causes corrupted values in 64-bit SMC IDs and issues in buggy handlers of
32-bit calls.

We need to make ARM_SMCCC_FAST_CALL unsigned long, so it would work properly
on 32 bit architectures.

Signed-off-by: Volodymyr Babchuk <volodymyr_babchuk at epam.com>
---
 include/linux/arm-smccc.h | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/include/linux/arm-smccc.h b/include/linux/arm-smccc.h
index 2d1e6cc156..7f2be23394 100644
--- a/include/linux/arm-smccc.h
+++ b/include/linux/arm-smccc.h
@@ -11,8 +11,8 @@
  * http://infocenter.arm.com/help/topic/com.arm.doc.den0028a/index.html
  */
 
-#define ARM_SMCCC_STD_CALL		0
-#define ARM_SMCCC_FAST_CALL		1
+#define ARM_SMCCC_STD_CALL		0UL
+#define ARM_SMCCC_FAST_CALL		1UL
 #define ARM_SMCCC_TYPE_SHIFT		31
 
 #define ARM_SMCCC_SMC_32		0
-- 
2.29.2