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-rw-r--r--arch/s390/include/asm/cpu_mf.h17
1 files changed, 14 insertions, 3 deletions
diff --git a/arch/s390/include/asm/cpu_mf.h b/arch/s390/include/asm/cpu_mf.h
index 9dd04b9e9782..03516476127b 100644
--- a/arch/s390/include/asm/cpu_mf.h
+++ b/arch/s390/include/asm/cpu_mf.h
@@ -169,16 +169,27 @@ static inline int lcctl(u64 ctl)
}
/* Extract CPU counter */
-static inline int ecctr(u64 ctr, u64 *val)
+static inline int __ecctr(u64 ctr, u64 *content)
{
- register u64 content asm("4") = 0;
+ register u64 _content asm("4") = 0;
int cc;
asm volatile (
" .insn rre,0xb2e40000,%0,%2\n"
" ipm %1\n"
" srl %1,28\n"
- : "=d" (content), "=d" (cc) : "d" (ctr) : "cc");
+ : "=d" (_content), "=d" (cc) : "d" (ctr) : "cc");
+ *content = _content;
+ return cc;
+}
+
+/* Extract CPU counter */
+static inline int ecctr(u64 ctr, u64 *val)
+{
+ u64 content;
+ int cc;
+
+ cc = __ecctr(ctr, &content);
if (!cc)
*val = content;
return cc;