[PATCH v1 03/48] arm64: cputype: Silence -Wshorten-64-to-32 warnings

[Ian Rogers]

The clang warning -Wshorten-64-to-32 can be useful to catch
inadvertent truncation. In some instances this truncation can lead to
changing the sign of a result, for example, truncation to return an
int to fit a sort routine. Silence the warning by making the implicit
truncation explicit.

Signed-off-by: Ian Rogers <irogers@xxxxxxxxxx>
---
 tools/arch/arm64/include/asm/cputype.h | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/tools/arch/arm64/include/asm/cputype.h b/tools/arch/arm64/include/asm/cputype.h
index 488f8e751349..d7289b9d2758 100644
--- a/tools/arch/arm64/include/asm/cputype.h
+++ b/tools/arch/arm64/include/asm/cputype.h
@@ -227,7 +227,7 @@
 
 #include <asm/sysreg.h>
 
-#define read_cpuid(reg)			read_sysreg_s(SYS_ ## reg)
+#define read_cpuid(reg)			((u32)read_sysreg_s(SYS_ ## reg))
 
 /*
  * Represent a range of MIDR values for a given CPU model and a
-- 
2.49.0.504.g3bcea36a83-goog