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| author | Heiko Carstens <hca@linux.ibm.com> | 2021-06-09 23:59:13 +0300 |
|---|---|---|
| committer | Vasily Gorbik <gor@linux.ibm.com> | 2021-06-18 17:41:21 +0300 |
| commit | 3c45a07bee619bb997b75b323f8d014e3efb36f8 (patch) | |
| tree | 1485700a6ab4008b275892683b6ed9cf904025db /arch/s390/kernel/diag.c | |
| parent | 75c89a2bc6ef00fd3c38c69cba82a92d0535887a (diff) | |
| download | linux-3c45a07bee619bb997b75b323f8d014e3efb36f8.tar.xz | |
s390/diag: use register pair instead of register asm
Signed-off-by: Heiko Carstens <hca@linux.ibm.com>
Signed-off-by: Vasily Gorbik <gor@linux.ibm.com>
Diffstat (limited to 'arch/s390/kernel/diag.c')
| -rw-r--r-- | arch/s390/kernel/diag.c | 11 |
1 files changed, 5 insertions, 6 deletions
diff --git a/arch/s390/kernel/diag.c b/arch/s390/kernel/diag.c index b8b0cd7b008f..a3f47464c3f1 100644 --- a/arch/s390/kernel/diag.c +++ b/arch/s390/kernel/diag.c @@ -141,16 +141,15 @@ EXPORT_SYMBOL(diag14); static inline int __diag204(unsigned long *subcode, unsigned long size, void *addr) { - register unsigned long _subcode asm("0") = *subcode; - register unsigned long _size asm("1") = size; + union register_pair rp = { .even = *subcode, .odd = size }; asm volatile( - " diag %2,%0,0x204\n" + " diag %[addr],%[rp],0x204\n" "0: nopr %%r7\n" EX_TABLE(0b,0b) - : "+d" (_subcode), "+d" (_size) : "d" (addr) : "memory"); - *subcode = _subcode; - return _size; + : [rp] "+&d" (rp.pair) : [addr] "d" (addr) : "memory"); + *subcode = rp.even; + return rp.odd; } int diag204(unsigned long subcode, unsigned long size, void *addr) |