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Diffstat (limited to 'arch/s390/kernel')
-rw-r--r--arch/s390/kernel/setup.c11
1 files changed, 9 insertions, 2 deletions
diff --git a/arch/s390/kernel/setup.c b/arch/s390/kernel/setup.c
index 290e504061a..d682ff135a1 100644
--- a/arch/s390/kernel/setup.c
+++ b/arch/s390/kernel/setup.c
@@ -687,7 +687,7 @@ static __init unsigned int stfl(void)
return S390_lowcore.stfl_fac_list;
}
-static __init int stfle(unsigned long long *list, int doublewords)
+static int __init __stfle(unsigned long long *list, int doublewords)
{
typedef struct { unsigned long long _[doublewords]; } addrtype;
register unsigned long __nr asm("0") = doublewords - 1;
@@ -697,6 +697,13 @@ static __init int stfle(unsigned long long *list, int doublewords)
return __nr + 1;
}
+int __init stfle(unsigned long long *list, int doublewords)
+{
+ if (!(stfl() & (1UL << 24)))
+ return -EOPNOTSUPP;
+ return __stfle(list, doublewords);
+}
+
/*
* Setup hardware capabilities.
*/
@@ -741,7 +748,7 @@ static void __init setup_hwcaps(void)
* HWCAP_S390_DFP bit 6.
*/
if ((elf_hwcap & (1UL << 2)) &&
- stfle(&facility_list_extended, 1) > 0) {
+ __stfle(&facility_list_extended, 1) > 0) {
if (facility_list_extended & (1ULL << (64 - 43)))
elf_hwcap |= 1UL << 6;
}