From 7b758389a29cb7f456ec2d27b7a08cb3cc4e1f1c Mon Sep 17 00:00:00 2001 From: Heiko Carstens Date: Thu, 17 Apr 2008 07:46:11 +0200 Subject: [PATCH] [S390] Export stfle. Make stfle visible so other code can call this. Signed-off-by: Martin Schwidefsky Signed-off-by: Heiko Carstens --- arch/s390/kernel/setup.c | 11 +++++++++-- include/asm-s390/system.h | 2 ++ 2 files changed, 11 insertions(+), 2 deletions(-) diff --git a/arch/s390/kernel/setup.c b/arch/s390/kernel/setup.c index 290e504061..d682ff135a 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; } diff --git a/include/asm-s390/system.h b/include/asm-s390/system.h index 15aba30601..92098df4d6 100644 --- a/include/asm-s390/system.h +++ b/include/asm-s390/system.h @@ -406,6 +406,8 @@ __set_psw_mask(unsigned long mask) #define local_mcck_enable() __set_psw_mask(psw_kernel_bits) #define local_mcck_disable() __set_psw_mask(psw_kernel_bits & ~PSW_MASK_MCHECK) +int stfle(unsigned long long *list, int doublewords); + #ifdef CONFIG_SMP extern void smp_ctl_set_bit(int cr, int bit); -- 2.39.5