diff mbox series

[v2,15/20] smccc: Cast arguments to unsigned long

Message ID 20200820103446.959000-16-ascull@google.com (mailing list archive)
State New, archived
Headers show
Series Introduce separate nVHE hyp context | expand

Commit Message

Andrew Scull Aug. 20, 2020, 10:34 a.m. UTC 
To avoid warning about implicit casting, make the casting explicit. This
allows, for example, pointers to be used as arguments as are used in the
KVM hyp interface.

Cc: Sudeep Holla <sudeep.holla@arm.com>
Signed-off-by: Andrew Scull <ascull@google.com>
---
 include/linux/arm-smccc.h | 20 ++++++++++----------
 1 file changed, 10 insertions(+), 10 deletions(-)
diff mbox series

Patch

diff --git a/include/linux/arm-smccc.h b/include/linux/arm-smccc.h
index 15c706fb0a37..3bb109a35554 100644
--- a/include/linux/arm-smccc.h
+++ b/include/linux/arm-smccc.h
@@ -260,7 +260,7 @@  asmlinkage void __arm_smccc_hvc(unsigned long a0, unsigned long a1,
 	typeof(a1) __a1 = a1;						\
 	struct arm_smccc_res   *___res = res;				\
 	register unsigned long r0 asm("r0") = (u32)a0;			\
-	register unsigned long r1 asm("r1") = __a1;			\
+	register unsigned long r1 asm("r1") = (unsigned long)__a1;	\
 	register unsigned long r2 asm("r2");				\
 	register unsigned long r3 asm("r3")
 
@@ -269,8 +269,8 @@  asmlinkage void __arm_smccc_hvc(unsigned long a0, unsigned long a1,
 	typeof(a2) __a2 = a2;						\
 	struct arm_smccc_res   *___res = res;				\
 	register unsigned long r0 asm("r0") = (u32)a0;			\
-	register unsigned long r1 asm("r1") = __a1;			\
-	register unsigned long r2 asm("r2") = __a2;			\
+	register unsigned long r1 asm("r1") = (unsigned long)__a1;	\
+	register unsigned long r2 asm("r2") = (unsigned long)__a2;	\
 	register unsigned long r3 asm("r3")
 
 #define __declare_arg_3(a0, a1, a2, a3, res)				\
@@ -279,29 +279,29 @@  asmlinkage void __arm_smccc_hvc(unsigned long a0, unsigned long a1,
 	typeof(a3) __a3 = a3;						\
 	struct arm_smccc_res   *___res = res;				\
 	register unsigned long r0 asm("r0") = (u32)a0;			\
-	register unsigned long r1 asm("r1") = __a1;			\
-	register unsigned long r2 asm("r2") = __a2;			\
-	register unsigned long r3 asm("r3") = __a3
+	register unsigned long r1 asm("r1") = (unsigned long)__a1;	\
+	register unsigned long r2 asm("r2") = (unsigned long)__a2;	\
+	register unsigned long r3 asm("r3") = (unsigned long)__a3
 
 #define __declare_arg_4(a0, a1, a2, a3, a4, res)			\
 	typeof(a4) __a4 = a4;						\
 	__declare_arg_3(a0, a1, a2, a3, res);				\
-	register unsigned long r4 asm("r4") = __a4
+	register unsigned long r4 asm("r4") = (unsigned long)__a4
 
 #define __declare_arg_5(a0, a1, a2, a3, a4, a5, res)			\
 	typeof(a5) __a5 = a5;						\
 	__declare_arg_4(a0, a1, a2, a3, a4, res);			\
-	register unsigned long r5 asm("r5") = __a5
+	register unsigned long r5 asm("r5") = (unsigned long)__a5
 
 #define __declare_arg_6(a0, a1, a2, a3, a4, a5, a6, res)		\
 	typeof(a6) __a6 = a6;						\
 	__declare_arg_5(a0, a1, a2, a3, a4, a5, res);			\
-	register unsigned long r6 asm("r6") = __a6
+	register unsigned long r6 asm("r6") = (unsigned long)__a6
 
 #define __declare_arg_7(a0, a1, a2, a3, a4, a5, a6, a7, res)		\
 	typeof(a7) __a7 = a7;						\
 	__declare_arg_6(a0, a1, a2, a3, a4, a5, a6, res);		\
-	register unsigned long r7 asm("r7") = __a7
+	register unsigned long r7 asm("r7") = (unsigned long)__a7
 
 #define ___declare_args(count, ...) __declare_arg_ ## count(__VA_ARGS__)
 #define __declare_args(count, ...)  ___declare_args(count, __VA_ARGS__)