diff options
Diffstat (limited to 'arch/s390/include/asm/ap.h')
| -rw-r--r-- | arch/s390/include/asm/ap.h | 14 |
1 files changed, 7 insertions, 7 deletions
diff --git a/arch/s390/include/asm/ap.h b/arch/s390/include/asm/ap.h index 046e044a48d0..8c00fd509c45 100644 --- a/arch/s390/include/asm/ap.h +++ b/arch/s390/include/asm/ap.h @@ -49,23 +49,23 @@ struct ap_queue_status { /** * ap_intructions_available() - Test if AP instructions are available. * - * Returns 0 if the AP instructions are installed. + * Returns true if the AP instructions are installed, otherwise false. */ -static inline int ap_instructions_available(void) +static inline bool ap_instructions_available(void) { register unsigned long reg0 asm ("0") = AP_MKQID(0, 0); - register unsigned long reg1 asm ("1") = -ENODEV; - register unsigned long reg2 asm ("2"); + register unsigned long reg1 asm ("1") = 0; + register unsigned long reg2 asm ("2") = 0; asm volatile( " .long 0xb2af0000\n" /* PQAP(TAPQ) */ - "0: la %0,0\n" + "0: la %0,1\n" "1:\n" EX_TABLE(0b, 1b) - : "+d" (reg1), "=d" (reg2) + : "+d" (reg1), "+d" (reg2) : "d" (reg0) : "cc"); - return reg1; + return reg1 != 0; } /** |